CN110424448A - A kind of underground pipes road subsidence monitoring compensation system and method - Google Patents
A kind of underground pipes road subsidence monitoring compensation system and method Download PDFInfo
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- CN110424448A CN110424448A CN201910724710.1A CN201910724710A CN110424448A CN 110424448 A CN110424448 A CN 110424448A CN 201910724710 A CN201910724710 A CN 201910724710A CN 110424448 A CN110424448 A CN 110424448A
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- support
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- support plate
- underground pipes
- pipeline
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/46—Foundations for supply conduits or other canals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/11—Accessories therefor, e.g. anchors for the detection or protection of pipes in the ground
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Radar, Positioning & Navigation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Pipeline Systems (AREA)
Abstract
The invention discloses a kind of underground pipes road subsidence monitoring compensation system and methods, subsidence monitoring compensation system includes the support compensation device for being used to support conveyance conduit and the monitoring system for monitoring soil body settling amount below the support compensation device, the support compensation device include pedestal and can vertical dilatation elastic supporting mechanism, the elastic supporting mechanism is mounted vertically on the pedestal, and top is equipped with the support plate being arc-shaped, the internal diameter of the support plate and the outer diameter of conveyance conduit match, can be placed at conveyance conduit in the support plate.The present invention has reasonable in design, can compensate and can monitor settling amount to soil body settling amount below pipeline, be convenient for pipeline maintenance, be conducive to ensure pipeline using safe, the advantages that extending pipeline service life.
Description
Technical field
The present invention relates to the soil bodys to settle protection technology field, is mended in particular to a kind of underground pipes road with subsidence monitoring
Repay system and method.
Background technique
Since the soil body settles, the conveyance conduit for being embedded in underground necessarily bears biggish vertical load, underground is caused to convey
Pipeline is easy to happen vertical bending deformation, once settling amount is excessive, it is also possible to and keep conveyance conduit damaged or is broken in junction,
Cause the leakage of fluids within pipes.
Existing ground anti-settling method mainly changes and fills out Sand-gravel-cushion Technioue, packing sedimentation by throwing stones method, draining concretion method, well-points dewatering
The technologies such as method, powder-spray pile method.Wherein cement injection pile is a kind of common method for reinforcing soft ground, it is with cement etc.
Powder is sent in soft stratum as curing agent, by dedicated powder stirring machine tool with compressed air by material, relies on drill bit
Blade carries out action of forced stirring in ground depths on the spot by weak soil and curing agent action of forced stirring in situ, forms soil and curing agent
Mixture makes weak soil scleroma at steady with globality, water using physics generated between curing agent and weak soil, chemical reaction
The good ground of property and some strength.This obvious construction technology of method is complex, need to first make curing agent and pass through compression again
Air is sent to designated position, it is also necessary to which for drill bit by soil and curing agent action of forced stirring, process is lengthy and tedious and complicated, wants to technique and machinery
Ask high.
Summary of the invention
In view of the above shortcomings of the prior art, it is set the technical problems to be solved by the present invention are: how to provide a kind of structure
Meter rationally, can compensate and can monitor settling amount to soil body settling amount below pipeline, be convenient for pipeline maintenance, favorably
Safe, the underground pipes road subsidence monitoring compensation system of extension pipeline service life is used in guarantee pipeline.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of underground pipes road subsidence monitoring compensation system, which is characterized in that including being used to support conveyance conduit
Support compensation device and the monitoring system for monitoring soil body settling amount below the support compensation device, the support compensation dress
Set including pedestal and can vertical dilatation elastic supporting mechanism, the elastic supporting mechanism is mounted vertically in the pedestal
On, and top is equipped with the support plate being arc-shaped, the internal diameter of the support plate and the outer diameter of conveyance conduit match, make to convey
Pipeline can be placed in the support plate.
In use, can be laid with route interval along pipeline installs above-mentioned support compensation device, due in the circular arc of support plate
The outer diameter of diameter and conveyance conduit matches, so that can steadily rest on support plate after conveyance conduit is placed on support plate
Lowest part.In this way, directly on lifting conveyance conduit to support plate, connecting pipe is just after the installation for completing support compensation device
Mating formation for pipeline can be completed, without additional fixed, compared to anti-settlings methods such as cement injection piles, is constructed simpler quick.
Simultaneously as elastic supporting mechanism between support plate and pedestal can vertical dilatation, under the designed elevation of pipeline, by
To the pressure of pipeline and the top soil body, elastic supporting mechanism is in compressive state.Once the soil body below some anti-sedimentation apparatus
It settles, pedestal moves down together, and pipeline is also supported by other anti-sedimentation apparatus simultaneously, and basic holding position is constant, makees
Reduced with the pressure on elastic supporting mechanism, elastic supporting mechanism elongation compensates soil body settling amount, continues to be supported under pipeline
Side avoids sedimentation segment pipe hanging and causes severe bends, or even rupture, to improve the safety in utilization of pipeline and reliable
Property.
Further, the elastic supporting mechanism is the support plunger cylinder being mounted vertically on the pedestal, the branch
Support compensation device further includes the accumulator for maintaining pressure stable, and the accumulator passes through hydraulic tube and the support Plunger oil
Cylinder is connected；The monitoring system includes the pressure sensor being mounted between the accumulator and support plunger cylinder on oil circuit,
With the data acquisition module of the detection data for acquiring the pressure sensor, first is connected on the data acquisition module
Wireless communication module；It further include the monitoring host computer for receiving the detection data of the pressure sensor, on the monitoring host computer
It is connected with the second wireless communication module.
After being stretched out due to the piston rod of support plunger cylinder, the hydraulic oil of accumulator is entered in cylinder body, can make energy storage
The pressure reduction of device detects oil pressure by pressure sensor, it will be able to the elongation of the piston rod of support plunger cylinder is calculated,
I.e. corresponding settling amount, in this way, by monitoring the hydraulic pressure value in each support compensation device, or changed by hydraulic pressure value
Obtained piston rod elongation, so that it may the settling amount of the soil body be monitored in real time, pipeline maintenance is convenient for.
It further, further include the wireless relay module being arranged along pipeline laying route interval, it is two neighboring described wireless
There are multiple support compensation devices, and the two neighboring wireless relay module passes through wireless network phase between trunk module
Even；The pressure sensor, data acquisition module and the first nothing being correspondingly arranged are all had in each support compensation device
Line communication module；First wireless communication module is wirelessly connected to the neighbouring wireless relay module, and passes through the nothing
Line trunk module is connected with second wireless communication module.
Further, the accumulator is bag type accumulator.
The air-liquid sealed reliable of bag type accumulator is not easy gas leakage, and because leather bag inertia is small, is quick on the draw, responds speed
Degree is fast, and inflation is convenient, is easy installation maintenance.
Further, the support plate entirety semicircular in shape.
In this way, preferably package effect can be formed to pipeline, avoids pipeline from tumbling out of support plate, be easily installed.
Further, the elastic sphere being provided projectingly is evenly equipped on the inside of the support plate.
In this way, corresponding deformation can be generated after pipeline is put into support plate, after elastic sphere stress to play the damping to pipeline
Effect.
A kind of underground pipes road subsidence monitoring compensation method, which is characterized in that before monitoring compensation, first obtain institute as above
The underground pipes road subsidence monitoring compensation system stated.
In conclusion the present invention has reasonable in design, soil body settling amount below pipeline can be compensated and energy
Enough monitor settling amount, be convenient for pipeline maintenance, be conducive to ensure pipeline using safe, it is excellent to extend pipeline service life etc.
Point.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for supporting compensation device.
Fig. 2 is the schematic illustration of monitoring system.
Fig. 3 is using the pipe sedimentation schematic diagram in the present invention when support compensation device.
Fig. 4 is the pipe sedimentation schematic diagram being not used when supporting compensation device in the present invention.
Fig. 5 is the structural schematic diagram that compensation device is supported in the embodiment of the present invention 2.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, a kind of underground pipes road subsidence monitoring compensation system, including for branch
Support the support compensation device 1 of conveyance conduit and the monitoring system for monitoring the support 1 lower section soil body settling amount of compensation device
2, the support compensation device 1 includes pedestal 11 and the support plunger cylinder 12 being mounted vertically on the pedestal 11, the branch
The top of dagger plug cylinder 12 is equipped with the support plate 13 being arc-shaped, the outer diameter phase of the internal diameter and conveyance conduit of the support plate 13
Matching, can be placed at conveyance conduit in the support plate 13；The support compensation device 1 further includes for maintaining pressure steady
Fixed accumulator 14, the accumulator 14 are connected by hydraulic tube with the support plunger cylinder 12.The monitoring system 2 includes
It is mounted on the accumulator 14 and supports the pressure sensor 21 between plunger cylinder on oil circuit, and passed for acquiring the pressure
The data acquisition module 22 of the detection data of sensor 21 is connected with the first wireless communication module on the data acquisition module 22
23；Further include the monitoring host computer 24 for receiving the detection data of the pressure sensor 21, is connected on the monitoring host computer 24
There is the second wireless communication module 25.
It further include the wireless relay module 26 along the setting of pipeline laying route interval, the two neighboring wireless relay module
There are multiple support compensation devices 1, and the two neighboring wireless relay module 26 is connected by wireless network between 26；
The pressure sensor 21 being correspondingly arranged, data acquisition module 22 and first are all had in each support compensation device 1
Wireless communication module 23；First wireless communication module 23 is wirelessly connected to the neighbouring wireless relay module 26, and leads to
The wireless relay module 26 is crossed to be connected with second wireless communication module 25.
In use, can be laid with route interval along pipeline installs above-mentioned support compensation device, due in the circular arc of support plate
The outer diameter of diameter and conveyance conduit matches, so that can steadily rest on support plate after conveyance conduit is placed on support plate
Lowest part.In this way, directly on lifting conveyance conduit to support plate, connecting pipe is just after the installation for completing support compensation device
Mating formation for pipeline can be completed, without additional fixed, compared to anti-settlings methods such as cement injection piles, is constructed simpler quick.
Simultaneously as the support plunger cylinder between support plate and pedestal can be vertically upper flexible under the effect of the oil pressure of accumulator, In
Under the designed elevation of pipeline, by the pressure of pipeline and the top soil body, plunger cylinder is supported to be in contraction state.Once some is propped up
The soil body below support compensation device settles, and pedestal moves down together, and pipeline is simultaneously also by other support compensation devices
Support, basic holding position is constant, and the pressure acted on support plunger cylinder reduces, oil of the support plunger cylinder in accumulator
The lower elongation of pressure effect, compensates soil body settling amount, continues to be supported below pipeline, as shown in figure 3, the support for being located at middle part compensates dress
The support plunger cylinder set is longer than the elongation of the support plunger cylinder at both ends, so as to avoiding sedimentation segment pipe hanging
Severe bends, or even rupture are caused, to improve the safety in utilization and reliability of pipeline.And traditional Pipe installing mode is not
Using support compensation device of the invention, as shown in figure 4, the soil body lax part in middle part can cause the duct bottom to be in because of sedimentation
Vacant state be easy to cause the bending deformation of pipeline.
After being stretched out due to the piston rod of support plunger cylinder, the hydraulic oil of accumulator is entered in cylinder body, can make energy storage
The pressure reduction of device detects oil pressure by pressure sensor, it will be able to the elongation of the piston rod of support plunger cylinder is calculated,
I.e. corresponding settling amount, in this way, by monitoring the hydraulic pressure value in each support compensation device, or changed by hydraulic pressure value
Obtained piston rod elongation, so that it may the settling amount of the soil body be monitored in real time, pipeline maintenance is convenient for.
When it is implemented, the accumulator 14 is bag type accumulator.
The air-liquid sealed reliable of bag type accumulator is not easy gas leakage, and because leather bag inertia is small, is quick on the draw, responds speed
Degree is fast, and inflation is convenient, is easy installation maintenance.
When it is implemented, the whole semicircular in shape of the support plate 13.
In this way, preferably package effect can be formed to pipeline, avoids pipeline from tumbling out of support plate, be easily installed.
When it is implemented, the inside of the support plate 13 is evenly equipped with the elastic sphere 15 being provided projectingly.
In this way, corresponding deformation can be generated after pipeline is put into support plate, after elastic sphere stress to play the damping to pipeline
Effect.
It, can also be to the piston elongation and pressure sensor for supporting plunger cylinder to improve precision when specifically used
Detection data is demarcated, specific steps are as follows: using the accumulator of same model, support plunger cylinder and pressure sensor, and
The hydraulic oil of determined volume is filled between accumulator and support plunger cylinder, which is exactly to be filled with accumulator when constructing
With the support in-oil cylinder The hydraulic oil of plunger.Pressure is applied using piston of the devices such as hydraulic press to support plunger cylinder, is made
Piston is in contraction state, and accumulator is then pressurized to setting pressure.Reduce the pressure acted on piston, makes piston at the uniform velocity
Elongation after piston extends set distance every time, keeps stablizing, the pressure and corresponding general extension of acquisition pressure sensor detection
It measures, repeatedly, until piston rod is fully extended, the data for passing through acquisition are fitted piston rod elongation and pressure sensor detects
Pressure between relationship.When monitoring, monitoring host computer is according to the detection data got, so that it may converse the elongation of piston rod
Amount then judges that the settling amount at this exceeds design standard once the elongation of some support plunger cylinder is more than setting elongation,
It needs to be serviced, does not otherwise need to safeguard.
It, can be using such as lower section when specifically used according to the underground pipes road subsidence monitoring compensation system of the application
Method carries out subsidence monitoring and compensation:
1, before installing, at least a set of support compensation device is randomly selected, using above-mentioned scaling method to support plunger cylinder
Piston elongation and the detection data of pressure sensor demarcated；
2, above-mentioned underground pipes road subsidence monitoring compensation system correspondence is installed in place according to construction drawing, and stored up
It is filled with the hydraulic oil of determined volume in energy device and support plunger cylinder, then transfer pipeline is mated formation into support plate；
3, all underground pipes roads are supervised with the pressure sensor of subsidence monitoring compensation system by monitoring host computer
It surveys, and the detection data of pressure sensor is converted according to the nominal data in step 1, obtain each underground pipes road
Then judged at this with the elongation of the support plunger cylinder in subsidence monitoring compensation system once elongation is more than setting value
Settling amount exceeds design standard, needs to be serviced, does not otherwise need to safeguard.
When it is implemented, monitoring host computer includes computer, and the multiple displays and alarm being connected to a computer, monitoring
The detection data of pressure sensor is converted into the elongation of support plunger cylinder by host, and is shown in display screen by histogram
On, convenient for dimension inspection personnel directly monitoring.
When it is implemented, the support compensation device can be arranged continuously at a certain distance, existing be only capable of pair can be effectively solved
Pipeline entrance lays the problem of anti-sedimentation apparatus, and the apparatus structure is simple, easy for installation, solves construction technology difficulty
The problem of.And it is not required to add pipeline, to reduce consumptive material, stability is more preferable, and durability is more preferable, has many places buffer structure, greatly
Degree protects pipeline.After having ensured that sedimentation occurs, due to supporting the addition of compensation device, make the safe handling of pipeline not by
It influences, effectively extends service life, additionally it is possible to monitor settling amount in time.
Embodiment 2, as shown in figure 5, the difference from embodiment 1 is that, it is equipped on vertical and sets below the support plate 13
The vertical supporting plunger cylinder set, and the pairs of skewed horizontal load Plunger oil for being symmetricly set on vertical supporting plunger cylinder two sides
Cylinder, the upper end of the vertical supporting plunger cylinder are hinged with the support plate 13, the both ends of the skewed horizontal load plunger cylinder
It is hinged respectively at the support plate and pedestal.Each vertical supporting plunger cylinder and the skewed horizontal load plunger cylinder point
It is not connected with an accumulator and pressure sensor.When initial mounting state, the elongation of skewed horizontal load plunger cylinder be its most
The half of long elongation.
In this way, the soil body may be made to generate uneven since ground soft soil is likely distributed in the one or both sides of pipeline
Even sedimentation settles to side, and then makes pipeline by the load in oliquely downward direction, at this moment, the larger side of bottom settling amount
Skewed horizontal load plunger cylinder can because bear pressure reduce due to extend, thus avoid pipeline gas engineering and caused by bending or rupture damage
It is bad.
It in the present embodiment, can be using the following two kinds mode to the piston elongation and pressure of each support plunger cylinder
The detection data of sensor is demarcated:
Calibration mode 1: be filled in each vertical supporting plunger cylinder and skewed horizontal load plunger cylinder and its accumulator with
The hydraulic oil of equal volume under installation condition, using the scaling method in embodiment 1, to vertical supporting plunger cylinder and oblique branch
The piston elongation and the detection data of its pressure sensor for supportting plunger cylinder are demarcated.When monitoring, by pressure sensor
Detection data is converted into the piston elongation of corresponding vertical supporting plunger cylinder and skewed horizontal load plunger cylinder, obtains each vertical
The entire length for supporting plunger cylinder and skewed horizontal load plunger cylinder, in conjunction with known each vertical supporting plunger cylinder and oblique
Support plunger cylinder installation site relationship can calculate the distance between support plate and pedestal increment, so as to realize
Monitoring to settling amount.
Calibration mode 2: be filled in each vertical supporting plunger cylinder and skewed horizontal load plunger cylinder and its accumulator with
The hydraulic oil of equal volume under installation condition randomly selects a set of support compensation device, is placed on multi-DOF platform, uses
The devices such as hydraulic press apply pressure to support plate 13, so that the piston of vertical supporting plunger cylinder is in contraction state, make oblique
It supports the elongation of the piston of plunger cylinder to be equal to the half of its maximal tensility, each accumulator is then pressurized to setting pressure
Power.By adjusting lifting or the flip angle of multi-DOF platform, the detection data of each pressure sensor and corresponding perpendicular is observed
To support plunger cylinder or the elongation of skewed horizontal load plunger cylinder, it is demarcated.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limitation with the present invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of underground pipes road subsidence monitoring compensation system, which is characterized in that the branch including being used to support conveyance conduit
Support compensation device and the monitoring system for monitoring soil body settling amount below the support compensation device, the support compensation device
Including pedestal and can vertical dilatation elastic supporting mechanism, the elastic supporting mechanism is mounted vertically on the pedestal,
And top is equipped with the support plate being arc-shaped, the internal diameter of the support plate and the outer diameter of conveyance conduit match, and make delivery pipe
Road can be placed in the support plate.
2. underground pipes road subsidence monitoring compensation system as described in claim 1, which is characterized in that the resilient support
Mechanism is the support plunger cylinder being mounted vertically on the pedestal, and the support compensation device further includes for maintaining pressure steady
Fixed accumulator, the accumulator are connected by hydraulic tube with the support plunger cylinder；The monitoring system includes being mounted on
Pressure sensor between the accumulator and support plunger cylinder on oil circuit, and the detection for acquiring the pressure sensor
The data acquisition module of data is connected with the first wireless communication module on the data acquisition module；It further include for receiving
The monitoring host computer of the detection data of pressure sensor is stated, the second wireless communication module is connected on the monitoring host computer.
3. underground pipes road subsidence monitoring compensation system as claimed in claim 2, which is characterized in that further include along pipeline
The wireless relay module of route interval of mating formation setting has multiple supports benefits between the two neighboring wireless relay module
Device is repaid, and the two neighboring wireless relay module is connected by wireless network；Have in each support compensation device
There are the pressure sensor, data acquisition module and the first wireless communication module being correspondingly arranged；The first wireless telecommunications mould
Block is wirelessly connected to the neighbouring wireless relay module, and passes through the wireless relay module and the second wireless telecommunications mould
Block is connected.
4. underground pipes road subsidence monitoring compensation system as described in claim 1, which is characterized in that the accumulator is
Bag type accumulator.
5. underground pipes road subsidence monitoring compensation system as described in claim 1, which is characterized in that the support plate is whole
Body semicircular in shape.
6. underground pipes road subsidence monitoring compensation system as described in claim 1, which is characterized in that the support plate
Inside is evenly equipped with the elastic sphere being provided projectingly.
7. a kind of underground pipes road subsidence monitoring compensation method, which is characterized in that before monitoring compensation, first obtain right such as and want
Seek underground pipes road subsidence monitoring compensation system described in any claim in 1~6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724710.1A CN110424448B (en) | 2019-08-06 | 2019-08-06 | Sedimentation monitoring compensation system and method for underground conveying pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910724710.1A CN110424448B (en) | 2019-08-06 | 2019-08-06 | Sedimentation monitoring compensation system and method for underground conveying pipeline |
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| CN110424448A true CN110424448A (en) | 2019-11-08 |
| CN110424448B CN110424448B (en) | 2021-04-09 |
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| CN110847632A (en) * | 2019-12-19 | 2020-02-28 | 天津联东兴达科技有限公司 | Building supporting device |
| CN111022768A (en) * | 2019-12-16 | 2020-04-17 | 湖州扬清环境科技有限公司 | Anti-settling and anti-stretching fixing mechanism for building directly-buried pipeline |
| CN111578033A (en) * | 2020-01-17 | 2020-08-25 | 朱奎 | Shock attenuation support frame that has controller |
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| CN114541459A (en) * | 2022-04-26 | 2022-05-27 | 北京智宇天成设计咨询有限公司 | System for compensating buried pipeline settlement in prefabricated well |
| CN115095711A (en) * | 2022-06-21 | 2022-09-23 | 广东易力建安工程有限公司 | Construction method of double-anticorrosion plastic-coated composite pipe |
| CN115467367A (en) * | 2022-08-17 | 2022-12-13 | 湖北工业大学 | Construction method for actively compensating deformation of underpass operation tunnel in upper-layer engineering construction |
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| CN113218363B (en) * | 2021-05-17 | 2022-10-25 | 中航勘察设计研究院有限公司 | Geotechnical engineering construction soil layer subsides and uses monitoring devices |
| CN114541459A (en) * | 2022-04-26 | 2022-05-27 | 北京智宇天成设计咨询有限公司 | System for compensating buried pipeline settlement in prefabricated well |
| CN114541459B (en) * | 2022-04-26 | 2022-07-05 | 北京智宇天成设计咨询有限公司 | System for compensating buried pipeline settlement in prefabricated well |
| CN115095711A (en) * | 2022-06-21 | 2022-09-23 | 广东易力建安工程有限公司 | Construction method of double-anticorrosion plastic-coated composite pipe |
| CN115467367A (en) * | 2022-08-17 | 2022-12-13 | 湖北工业大学 | Construction method for actively compensating deformation of underpass operation tunnel in upper-layer engineering construction |
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