CN110714734A - Pipeline touch construction method for effectively preventing underground pipeline from being damaged - Google Patents
Pipeline touch construction method for effectively preventing underground pipeline from being damaged Download PDFInfo
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- CN110714734A CN110714734A CN201911110609.3A CN201911110609A CN110714734A CN 110714734 A CN110714734 A CN 110714734A CN 201911110609 A CN201911110609 A CN 201911110609A CN 110714734 A CN110714734 A CN 110714734A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/02—Core bits
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Earth Drilling (AREA)
Abstract
The invention discloses a pipeline probing construction method for effectively preventing underground pipelines from being damaged, which comprises the following steps: drilling holes one by one in a selected range; firstly, connecting a rock core pipe opening to a plain soil filling layer or an original soil layer by using a hard alloy drill bit or a composite sheet drill bit; then using the plastic drill bit to carry out rotary drilling by adopting flushing fluid, and carrying out drill lifting once every 2m to 3m of drilling; observing the rig reaction: if no footage exists for more than 2 minutes, the plastic drill bit has obvious springback feeling, and the upward flushing fluid contains the scraps of the plastic drill bit, the pipeline can be determined to be met, and the plastic drill bit is lifted to finish the pipeline detecting at the position; if the underground pipeline is not encountered after the preset depth is reached, the plastic drill bit is lifted, a geophysical prospecting instrument is put down for detection, and the steps are repeatedly executed after the position of the pipeline is further determined. The underground pipeline detecting device can efficiently detect underground pipelines, has high detection hole verticality and good hole wall integrity, can be directly used as a verification hole, and can determine the positions of the pipelines more accurately.
Description
Technical Field
The invention relates to the technical field of shallow soil layer drilling, in particular to a pipeline touch construction method for effectively preventing underground pipelines from being damaged.
Background
With the continuous development of urbanization construction and the application of various new material pipelines, the underground pipelines of the current municipal roads (particularly old urban roads) are dense, new and old pipelines are staggered up and down, and the situation is complex. The conventional geophysical prospecting means is limited by the configuration, technical method and basic principle of the current equipment, and has certain limitation on the accurate detection of various pipelines which have large sizes, deep burial and are made of non-metallic materials and provided with electromagnetic shielding; in addition, in some areas with large electromagnetic interference, the detection result has certain deviation.
Some major pipelines are influenced by peripheral engineering construction and may generate certain horizontal displacement and settlement, and in order to ensure the safety of the major pipelines, observation points need to be buried for monitoring the displacement and deformation of peripheral important underground pipelines in the construction process; the existing monitoring hole forming process adopts a drilling method, so that a major pipeline can be damaged or a protective layer and an anticorrosive layer of the pipeline wall can be damaged in the hole forming process, and adverse effects or potential safety hazards are directly or indirectly caused.
At present, in geotechnical engineering investigation on municipal lines, a diamond bit, a composite bit or a hard alloy bit used in conventional drilling is limited and partially deviated due to underground pipeline data provided in the aspect of geophysical prospecting in the construction process, the situation of underground pipelines is broken, adverse social influence is caused, and great economic loss is brought to a surveying unit.
Due to engineering safety considerations and design and construction requirements, in some cases, the conventional pipeline detection method in the aspect of geophysical prospecting cannot accurately detect the pipeline, accurate positioning (such as large-size and large-burial-depth oil pipelines, gas pipelines, water supply pipes, pressure sewage pipes and the like) is required, and drilling hole matching is often required to accurately detect the plane position and burial depth of the pipeline in order to eliminate interference factors due to the limitation of the technical method. Conventional exploration equipment is easy to damage pipelines, and at present, in the aspect of special detection of pipelines, the adopted equipment is low in mechanical degree, original in construction means, low in working efficiency and poor in detection effect. When the probe is touched, the probe needs to be opened from far to near step by step, and generally 4-8 drill holes are needed for accurately touching the pipeline position.
As shown in fig. 1, when a pipeline probing is performed by using a conventional drilling method, the specific steps are as follows:
step one, according to the collected data, when a pipeline possibly exists in a certain range, a hole is opened at a distance of 3-5 meters away from the position where the pipeline possibly exists;
connecting the rock core pipe with the hole to the plain soil filling layer or the original soil layer by using a hard alloy drill bit or a composite bit;
thirdly, slowly and circularly drilling in a soft soil layer by using static pressure or pressure less than 1 Mpa;
drilling to a given depth, and lowering a geophysical prospecting instrument to detect when the pipeline is not encountered, so as to determine the approximate pipeline position;
and step five, approaching the pipeline in a step-by-step manner by 0.5-1.0 m towards the direction of the pipeline, and repeating the step two to the step four until the position of the pipeline is detected.
The method needs to probe the pipeline from far to near gradually at a certain position away from the pipeline during probing the pipeline, and the efficiency is low. Once touching the pipeline during probing, the pipeline is difficult to detect during drilling and is inevitably damaged.
As shown in fig. 2, the pipeline probing is performed by using a water-jet method, which comprises the following steps:
step one, according to the collected data, when pipelines possibly exist in a certain range, selecting a nearby position to drill a hole;
connecting the rock core pipe with the hole to the plain soil filling layer or the original soil layer by using a hard alloy drill bit or a composite bit;
thirdly, connecting a small drill rod with a water pump to perform water-jet drilling, wherein the drilling power is manpower, water pressure impact force and drill rod self weight;
step four, when the water is flushed to a preset depth, if the water does not meet the pipeline, the hole distribution is gradually encrypted;
and step five, repeating the step one to the step four until encountering the pipeline.
The drilling power of the method is manpower, water pressure impact force and drill rod self weight, the mechanical degree is low, and the construction means is original; the method has low efficiency in practical application; the verticality of the hole wall drilled by water flushing is poor, so that even if a certain point location meets an underground pipeline, when the punching depth reaches more than 5m, the actual pipeline position may be horizontally deviated from the position of the hole opening of the point location by 30cm to 50 cm; and when the method encounters the pipeline, the possibility of damaging the pipeline is also existed; for pipelines with relatively deep burial depth, the method has the defects that the sediment at the bottom of the hole is too thick and is not easy to remove, the detection depth is obviously limited, and the practicability is poor.
Therefore, the existing shallow soil layer drilling method needs to be improved, so that the existing technical defects can be overcome, core drilling can be safely carried out on the municipal roads with dense pipelines, the requirement for monitoring and pore-forming important underground pipelines can be met, the pipeline touch efficiency is greatly improved, and the pipeline touch depth is increased.
Disclosure of Invention
In view of the defects of the prior art, the invention provides the pipeline probing construction method for effectively preventing the underground pipeline from being damaged, and the purpose of realizing seamless butt joint with the rock core pipe in the geotechnical engineering exploration market is achieved, so that the pipeline can be probed efficiently on the municipal road with dense pipelines on the premise of not damaging the pipelines, and the purpose of probing and taking core samples and monitoring and forming holes of important underground pipelines can be achieved.
In order to achieve the purpose, the invention discloses a pipeline detection construction method for effectively preventing underground pipelines from being damaged, which comprises the following steps:
step one, determining a range in which a pipeline possibly exists according to construction requirements, and selecting a central position in the range to drill a hole;
connecting the rock core pipe with the hole to the plain soil filling layer or the original soil layer by using a hard alloy drill bit or a composite bit;
step three, replacing the hard alloy drill bit or the composite sheet drill bit with a plastic drill bit, and connecting the plastic drill bit with the rock core pipe matched with the drilling machine through threads;
fourthly, adjusting drilling parameters of the drilling machine; rotary drilling by adopting flushing fluid, and lifting the drill once every 2m to 3 m; when the sediment and the waste soil in the hole are thick, the rotary drilling is carried out by adopting the flushing fluid which is not sent, and the drilling is urgently needed after the sediment and the waste soil in the hole are all fished out;
observing the reaction of the drilling machine: if no footage exists for more than 2 minutes, the plastic drill bit has obvious springback feeling, and the upward flushing fluid contains the scraps of the plastic drill bit, the pipeline can be determined to be met, and the plastic drill bit is lifted to finish the pipeline detecting at the position; if the reaction is not carried out, executing a step six;
step six: and if the underground pipeline is not encountered after the preset depth is reached, lifting the plastic drill bit, putting down a geophysical prospecting instrument for detecting, and repeating the steps from the first step to the fifth step after the position of the pipeline is further determined.
Preferably, in the second step, the diameter of the core barrel connected with the cemented carbide drill bit or the composite bit is phi 120 mm.
Preferably, in the third step, the diameter of the core barrel matched with the plastic drill bit is phi 108 mm.
Preferably, in the fourth step, the drilling parameters of the drilling machine are pressure 1MPa and rotating speed 600 r/min.
Preferably, the plastic drill bit is in a circular tube shape, one end of the plastic drill bit is a connecting end connected with a rock core tube of the drilling machine, and the other end of the plastic drill bit is a front end for circularly and rotatably drilling by flushing fluid;
the drill bit is in a stepped shaft shape, and the outer diameter of the connecting end is smaller than the outer diameter R2 of the front end;
the outer diameter R2 is greater than the outer diameter R1 of the core barrel;
the inner hole of the drill comprises a cylindrical inner hole with a rectangular longitudinal section and a trapezoidal column inner hole with a trapezoidal longitudinal section;
inner holes corresponding to the connecting end and the front end close to the connecting end are cylindrical inner holes;
the inner diameter r2 of the cylindrical inner hole is smaller than the inner diameter r1 of the core barrel;
the end with the smaller aperture of the trapezoidal column hole is connected with the cylindrical inner hole, the aperture of the trapezoidal column hole is increased along with the increase of the distance between the trapezoidal column hole and the connecting end, and the wall thickness of the corresponding part is gradually reduced;
a plurality of radial U-shaped water channels are uniformly distributed on the side wall of the end part with the annular front end, and a tooth is formed between every two U-shaped water channels;
and the included angle a between the side surface of one side of each tooth, which cuts into the soil layer during drilling, and the end surface of the corresponding tooth is 100-120 degrees.
More preferably, the drill bit with the core barrel is by threaded connection mode fixed connection, the link is equipped with the external screw thread, the core barrel is equipped with the internal thread.
More preferably, the length of the cylindrical inner bore is the length of the connection end plus 15 mm.
More preferably, 8U-shaped water tanks are uniformly distributed on the annular end surface of the front end.
More preferably, the drill bit is made of polytetrafluoroethylene or polypropylene material, namely PTFE or PP material.
More preferably, the drill bit has a wall thickness L1 of 7 mm at the end corresponding to the connection end, a wall thickness L2 of 17 mm at the inner cylindrical bore corresponding to the leading end, and a wall thickness L3 of 12 mm at each tooth.
The invention has the beneficial effects that:
the application of the invention can efficiently probe underground pipelines, and the probe holes have high verticality and good integrity of the hole walls, and the probe holes meeting the pipelines can be directly used as verification holes; the diameter of the exploration hole is phi 120mm, so that the down-dip pipe is convenient, and the position of the pipeline can be determined more accurately.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 shows a schematic view of a cut-out soil section of a prior art pipeline probe using a conventional drilling method.
Fig. 2 is a schematic diagram showing a cross section of an excavated soil layer obtained by performing pipeline probing by using a water-jet method in the prior art.
Fig. 3 shows a schematic structural diagram of a plastic drill according to an embodiment of the present invention.
Fig. 4 shows a schematic structural view of the front end face of the plastic drill according to an embodiment of the present invention.
Fig. 5 is a schematic diagram illustrating a section of a soil layer excavated in the construction process according to an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 5, the pipeline probing construction method for effectively preventing the underground pipeline from being damaged comprises the following steps:
step one, determining the range in which a pipeline possibly exists according to construction requirements, and selecting a central position in the range to carry out open hole drilling;
connecting the opening of the rock core pipe 5 to a plain soil filling layer or an original soil layer by using a hard alloy drill bit or a composite bit;
step three, replacing the hard alloy drill bit or the composite sheet drill bit with a plastic drill bit, and connecting the plastic drill bit with a rock core pipe 5 matched with the drilling machine through threads;
step four, adjusting drilling parameters of the drilling machine; rotary drilling by adopting flushing fluid, and lifting the drill once every 2m to 3 m; when the sediment and the waste soil in the hole are thick, adopting a non-feeding flushing liquid to carry out rotary drilling, and continuing drilling after the sediment and the waste soil in the hole are all fished out;
step five, observing the reaction of the drilling machine: if no footage exists for more than 2 minutes, obvious rebound feeling exists, and the upward flushing fluid contains the scraps of the plastic drill bit, the pipeline can be determined to meet, and the plastic drill bit is lifted to finish the pipeline probing at the position; if the reaction is not carried out, executing a step six;
step six: if the underground pipeline is not encountered after the preset depth is reached, lifting the plastic drill bit, putting down the geophysical prospecting instrument for detecting, and repeating the steps from the first step to the fifth step after the position of the pipeline is further determined.
The principle of the invention is that a plastic drill bit with lower strength than the pipeline is adopted to drill a plain soil filling layer or an original soil layer, so that the plastic drill bit cannot generate shearing damage even if encountering the pipeline, and the plastic drill bit plays a role in protecting the pipeline; and the plastic drill bit can guarantee the smooth soil layer of impressing in soft soil layer in, can efficient visit the underground pipeline, and visit the hole straightness height that hangs down, pore wall integrality is good, and the visit hole that meets the pipeline can directly regard as the verification hole.
In certain embodiments, in step two, the core barrel 5 to which the cemented carbide drill bit or the composite bit is attached has a diameter of 120 mm.
In some embodiments, in step three, the core barrel 5 that mates with the plastic drill bit has a diameter of 108 mm.
In some embodiments, in the fourth step, the drilling parameter of the drilling machine is 1MPa, and the rotating speed is 600 r/min.
As shown in fig. 3 and 4, in some embodiments, the plastic drill bit is in the shape of a circular tube, one end of which is a connection end 2 connected with a core barrel 5 of the drilling machine, and the other end of which is a front end 1 for circulation and rotary drilling of flushing liquid;
the appearance of the drill bit is in a stepped shaft shape, and the outer diameter of the connecting end 2 is smaller than the outer diameter R2 of the front end 1;
the outer diameter R2 is greater than the outer diameter R1 of the core barrel 5;
the inner hole of the drill comprises a cylindrical inner hole with a rectangular longitudinal section and a trapezoidal column inner hole with a trapezoidal longitudinal section;
inner holes corresponding to the parts of the connecting end 2 and the front end 1 close to the connecting end 2 are cylindrical inner holes;
the inner diameter r2 of the cylindrical inner hole is smaller than the inner diameter r1 of the core barrel 5;
the end with smaller aperture of the trapezoidal column hole is connected with the cylindrical inner hole, the aperture of the trapezoidal column hole is increased along with the increase of the distance between the trapezoidal column hole and the connecting end 2, and the wall thickness of the corresponding part is gradually reduced;
a plurality of U-shaped water tanks 4 along the radial direction are uniformly distributed on the side wall of the annular end part of the front end 1, and a tooth 3 is formed between every two U-shaped water tanks 4;
the angle a between the side of each tooth 3 cutting into the earth and the end face of the respective tooth 3 during drilling is 100 ° to 120 °.
In some embodiments, the drill bit is fixedly connected to the core barrel 5 by a threaded connection, the connecting end 2 is provided with an external thread, and the core barrel 5 is provided with an internal thread.
In some embodiments, the length of the cylindrical bore is the length of the connection end 2 plus 15 millimeters.
In some embodiments, 8U-shaped water channels 4 are uniformly distributed on the annular end surface of the front end 1.
In some embodiments, the drill bit is made of a polytetrafluoroethylene or polypropylene material, i.e., a PTFE or PP material.
In some embodiments, the wall thickness L1 at the bit corresponding to the connection end 2 is 7 mm, the wall thickness L2 at the cylindrical bore corresponding to the nose 1 is 17 mm, and the wall thickness L3 at each tooth 3 is 12 mm.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The pipeline touch construction method for effectively preventing underground pipelines from being damaged comprises the following steps:
step one, determining the range in which pipelines possibly exist according to construction requirements, and selecting a central position in the range to drill holes;
secondly, connecting the hole of the rock core pipe (5) to a plain soil filling layer or an original soil layer by using a hard alloy drill bit or a composite bit;
step three, the hard alloy drill bit or the composite sheet drill bit is replaced by a plastic drill bit, and the plastic drill bit is connected with a rock core pipe (5) matched with the drilling machine through threads;
fourthly, adjusting drilling parameters of the drilling machine; rotary drilling by adopting flushing fluid, and lifting the drill once every 2m to 3 m; when the sediment and the waste soil in the hole are thick, adopting a non-feeding flushing liquid to carry out rotary drilling, and continuing drilling after the sediment and the waste soil in the hole are all fished out;
observing the reaction of the drilling machine: if no footage exists for more than 2 minutes, the plastic drill bit has obvious springback feeling, and the upward flushing fluid contains the scraps of the plastic drill bit, the pipeline can be determined to be met, and the plastic drill bit is lifted to finish the pipeline detecting at the position; if the reaction is not carried out, executing a step six;
step six: and if the underground pipeline is not encountered after the preset depth is reached, lifting the plastic drill bit, putting down a geophysical prospecting instrument for detecting, and repeating the steps from the first step to the fifth step after the position of the pipeline is further determined.
2. The pipe exploration construction method for effectively preventing the damage to the underground pipeline according to claim 1, wherein in the second step, the diameter of the core barrel (5) connected to the cemented carbide drill bit or the composite bit is phi 120 mm.
3. The pipe touch construction method for effectively preventing damage to underground pipelines according to claim 1, wherein in the third step, the diameter of the core barrel (5) matched with the plastic drill bit is phi 108 mm.
4. The pipe touch construction method for effectively preventing the damage to the underground pipeline according to claim 1, wherein in the fourth step, the drilling parameter of the drilling machine is 1MPa and the rotation speed is 600 r/min.
5. The pipe-touch construction method for effectively preventing damage to underground pipelines according to claim 1, wherein the plastic drill bit is in a shape of a circular pipe, one end of the plastic drill bit is a connection end (2) connected to a core barrel (5) of a drilling machine, and the other end of the plastic drill bit is a front end (1) for circulation and rotary drilling of a flushing fluid;
the drill bit is in a stepped shaft shape, and the outer diameter of the connecting end (2) is smaller than the outer diameter R2 of the front end (1);
the outer diameter R2 is greater than the outer diameter R1 of the core barrel (5);
the inner hole of the drill comprises a cylindrical inner hole with a rectangular longitudinal section and a trapezoidal column inner hole with a trapezoidal longitudinal section;
inner holes corresponding to the parts, close to the connecting end (2), of the connecting end (2) and the front end (1) are cylindrical inner holes;
the inner diameter r2 of the cylindrical inner hole is smaller than the inner diameter r1 of the core barrel (5);
the smaller end of the trapezoidal column hole is connected with the cylindrical inner hole, the diameter of the trapezoidal column hole is increased along with the increase of the distance between the trapezoidal column hole and the connecting end (2), and the wall thickness of the corresponding part is gradually reduced;
a plurality of radial U-shaped water tanks (4) are uniformly distributed on the side wall of the annular end part of the front end (1), and a tooth (3) is formed between every two U-shaped water tanks (4);
the included angle a between the side surface of one side, cut into the soil layer, of each tooth (3) and the end surface of the corresponding tooth (3) is 100-120 degrees during drilling.
6. The pipeline probing construction method for effectively preventing the underground pipeline from being damaged according to claim 5, wherein the drill bit is fixedly connected with the core barrel (5) by a threaded connection, the connecting end (2) is provided with an external thread, and the core barrel (5) is provided with an internal thread.
7. The pipeline probe construction method for effectively preventing the damage to the underground pipeline according to claim 5, wherein the length of the cylindrical inner hole is the length of the connection end (2) plus 15 mm.
8. The pipeline probing construction method for effectively preventing the underground pipeline from being damaged according to claim 5, wherein 8U-shaped water tanks (4) are uniformly distributed on the annular end surface of the front end (1).
9. The method for conducting a pipeline exploration construction for effectively preventing the damage to an underground pipeline according to claim 5, wherein the drill bit is made of a Polytetrafluoroethylene (PTFE) or polypropylene (PP) material.
10. The method for conducting pipe probing work for effectively preventing damage to underground pipelines according to claim 5, wherein the wall thickness L1 of the drill bit corresponding to the connecting end (2) is 7 mm, the wall thickness L2 of the drill bit corresponding to the front end (1) and at the cylindrical inner hole is 17 mm, and the wall thickness L3 of the drill bit corresponding to each tooth (3) is 12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911110609.3A CN110714734A (en) | 2019-11-14 | 2019-11-14 | Pipeline touch construction method for effectively preventing underground pipeline from being damaged |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911110609.3A CN110714734A (en) | 2019-11-14 | 2019-11-14 | Pipeline touch construction method for effectively preventing underground pipeline from being damaged |
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| CN110714734A true CN110714734A (en) | 2020-01-21 |
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| CN201911110609.3A Pending CN110714734A (en) | 2019-11-14 | 2019-11-14 | Pipeline touch construction method for effectively preventing underground pipeline from being damaged |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550193A (en) * | 2020-05-20 | 2020-08-18 | 西安长庆科技工程有限责任公司 | Engineering exploration drill bit and method capable of early warning underground metal pipeline |
| CN116591595A (en) * | 2023-05-17 | 2023-08-15 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Device and method for excavating underground pipelines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129143A1 (en) * | 2008-04-18 | 2009-10-22 | Shell Oil Company | Systems, methods, and processes utilized for treating hydrocarbon containing subsurface formations |
| CN102662198A (en) * | 2012-05-18 | 2012-09-12 | 上海市城市建设设计研究总院 | Water jetting geophysical prospecting construction process applying drill special for geophysical prospecting |
| CN102678058A (en) * | 2012-05-18 | 2012-09-19 | 上海市城市建设设计研究总院 | Special drill for geophysical prospecting |
| CN203677789U (en) * | 2014-01-23 | 2014-07-02 | 刘彤宇 | Safety rod |
| CN110185396A (en) * | 2019-06-20 | 2019-08-30 | 上海市城市建设设计研究总院（集团）有限公司 | Suitable for the new drill drilled on the intensive town road of pipeline |
-
2019
- 2019-11-14 CN CN201911110609.3A patent/CN110714734A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129143A1 (en) * | 2008-04-18 | 2009-10-22 | Shell Oil Company | Systems, methods, and processes utilized for treating hydrocarbon containing subsurface formations |
| CN102662198A (en) * | 2012-05-18 | 2012-09-12 | 上海市城市建设设计研究总院 | Water jetting geophysical prospecting construction process applying drill special for geophysical prospecting |
| CN102678058A (en) * | 2012-05-18 | 2012-09-19 | 上海市城市建设设计研究总院 | Special drill for geophysical prospecting |
| CN203677789U (en) * | 2014-01-23 | 2014-07-02 | 刘彤宇 | Safety rod |
| CN110185396A (en) * | 2019-06-20 | 2019-08-30 | 上海市城市建设设计研究总院（集团）有限公司 | Suitable for the new drill drilled on the intensive town road of pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550193A (en) * | 2020-05-20 | 2020-08-18 | 西安长庆科技工程有限责任公司 | Engineering exploration drill bit and method capable of early warning underground metal pipeline |
| CN116591595A (en) * | 2023-05-17 | 2023-08-15 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Device and method for excavating underground pipelines |
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Application publication date: 20200121 |