CN107100156A - High-speed railway subgrade settlement monitoring element protection and its distribution method - Google Patents
High-speed railway subgrade settlement monitoring element protection and its distribution method Download PDFInfo
- Publication number
- CN107100156A CN107100156A CN201710400884.3A CN201710400884A CN107100156A CN 107100156 A CN107100156 A CN 107100156A CN 201710400884 A CN201710400884 A CN 201710400884A CN 107100156 A CN107100156 A CN 107100156A
- Authority
- CN
- China
- Prior art keywords
- iron plate
- bedding
- embankment
- compacting
- soil layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
- E02D1/08—Investigation of foundation soil in situ after finishing the foundation structure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of high-speed railway subgrade settlement monitoring element protection and its distribution method, the problem of existing pipe pile embankment raft plate settlement monitoring is inaccurate reliable is solved.Including pile tube roadbed raft plate（1）Soil layer is filled with the following embankment first layer of bedding（5）, in pile tube roadbed raft plate（1）On be provided with sedimentation plate（2）With settlement measurement vertical rod（3）, in settlement measurement vertical rod（3）On be socketed with PVC sleeve pipes（4）, in PVC sleeve pipes（4）On be socketed with protection steel pipe（8）, in compacting iron plate（6）Center be provided with protection pipe connecting hole（7）, protect steel pipe（8）Top with compacting iron plate（6）Center set protection pipe connecting hole（7）It is fixed together, protects steel pipe（8）Height be less than the following embankment first layer of bedding and fill soil layer（5）Compacted depth.Improve the precision of raft plate circuit base settlement monitoring, it is ensured that the construction quality of roadbed.
Description
Technical field
The present invention relates to a kind of high-speed railway subgrade settlement monitoring device, more particularly to a kind of high-speed railway subgrade sedimentation prison
Survey protection device and its distribution method.
Background technology
At present, China has begun to accelerate the construction of high-speed railway, and Develop Ballastless Track has been considered as China Express Railway and built
If the technological change that particularly a field depth is carved in terms of line facility.Ballastless track is right due to being limited by itself adjustment capability
The sedimentation and deformation of engineering proposes strict demand under line, therefore to realize that high-speed railway completely lays the target of ballastless track, road
The key technical problem that ballastless track has become High Speed Rail Projects construction is laid on base.And how to efficiently control roadbed work
Settlement issues are especially prominent afterwards.
High-speed railway proposes higher requirement to the ride comfort of track, and roadbed is one of railway project important
Part, is subject to the basis of track structure weight and train load, and it is also most weak least stable in railway engineering
Link, the irregularity of roadbed physical dimension can cause the Geometric irregularity of track, it is therefore desirable to which sub-rail foundation has higher naturally
Stability and less permanent deformation, to ensure train high speed, safety, even running.Due to the special engineering properties of weak soil and
The characteristics of high-speed railway subgrade, in general, the stabilized soil pavement intractability of most section grounds, are all little, not into
For governing factor；It is the solidification problem under the conditions of sedimentation and deformation and its various treatment measures, institute to the main bugbear that engineering is brought
It is the principal element to be considered in Design of High-speed Railway with subgrade settlement problem on deformation.Railway bed compaction quality is to maintain line
Road is stable and smoothes out, it is ensured that train energy high speed, the essential condition of safe operation, and controls and detect the standard of compaction quality, side
Method and equipment, then be the important measures for ensureing compaction quality.High-speed railway subgrade is used as Deformation control very strict geotechnological structure
Thing is built, sinking deformation monitoring should be used as the important procedure in subgrade construction, through whole subgrade construction all the time.
Before roadbed this body construction, first have to carry out stiffening basic ground, then after treatment on the basis of placement in layers
The soil body.In order to monitor the sedimentation of foundation of road bed, it is usually that sedimentation plate is set on foundation of road bed, survey is connect in sedimentation plate centre
Vertical rod is measured, the sedimentation of foundation of road bed is determined by monitoring the vertical displacement of measurement vertical rod.Existing foundation of road bed uses sedimentation plate
Carry out settlement monitoring process be：The first layer being compacted on foundation of road bed, which is filled, excavates a hole body to basis on the soil body
Position, will be placed at design attitude after sedimentation plate and measurement vertical rod connection and 10 centimetres of sand bedding courses of pad is levelling, ensure when embedded
Measure vertical rod perpendicular to the ground, put PVC protection pipes, then hole body is backfilled, by baby roller to returning after backfill
The body that bankets is compacted, and settlement monitoring is carried out afterwards.In this process, due to vibrations pressure of the road roller to the backfill soil body in hole
It is real, the backfill soil body is produced lateral pressure, often result in the phenomenon that the measurement vertical rod being deleveled occurs tilting and shifted, have influence on
The accurate measurement of follow-up foundation of road bed sedimentation, and roll the soil body around measurement vertical rod with baby roller and do not ensure that
Its compaction quality.In addition, being that will measure vertical rod before the second layer is filled because roadbed filling is compacted by placement in layers
After spreading, PVC protection pipes are put, to protect the measurement vertical rod of spreading in roller compaction process to be extruded from the soil body, second layer road are carried out
Base is filled, and whole roadbed is then rolled with large roller, due to being only cased with PVC protection pipes outside measurement vertical rod, in big machinery
In roller compaction process, PVC protection pipes is produced lateral displacement, cause the measurement vertical rod of spreading to tilt, cause settlement monitoring more
Plus it is inaccurate.
The content of the invention
The invention provides a kind of high-speed railway subgrade settlement monitoring element protection and its distribution method, height is solved
Fast railroad bed settlement plate monitoring is inaccurate and measures the problem of vertical rod surrounding soil compaction quality can not ensure.
The present invention is to solve above-mentioned technical problem by the following technical programs：
A kind of high-speed railway subgrade settlement monitoring element protection, including foundation of road bed and the following embankment first layer of bedding are filled
Soil layer, sedimentation plate and settlement measurement vertical rod are provided with foundation of road bed, PVC sleeve pipes are socketed with outside settlement measurement vertical rod,
Steel pillar is socketed with outside PVC sleeve pipes, the centre of compacting iron plate is provided with steel pillar connecting hole, the top of steel pillar and compacting
The protection pipe connecting hole that iron plate center is set is fixed together, and the height of steel pillar is less than the following embankment first layer of bedding
Fill the compacted depth of soil layer.
The upper and lower surface of compacting iron plate is provided with anti-skid bulge, wedge shape is provided between compacting iron plate and protection steel pipe
Floor, wedge-shaped floor is that 90 degree of radians are laid at equal intervals on the lateral wall of steel pillar.
A kind of distribution method of high-speed railway subgrade settlement monitoring element protection, comprises the following steps：
The first step, foundation of road bed is constructed, the following soil layer of embankment first of bedding is filled on the foundation of road bed constructed and is rolled；
Second step, the appropriate sand of preparation, fill in the following embankment first layer of bedding and one square are excavated at the design attitude on soil layer
Ready sand is layered on hole body center by the hole body of rice to foundation of road bed, and then sedimentation plate is placed on sand bedding course,
Connect settlement measurement vertical rod and levelling, PVC sleeve pipes are inserted in settlement measurement vertical rod, and settlement measurement vertical rod is maintained at PVC
The center of sleeve pipe, backfills the soil body of PVC its vicinities；
3rd step, take one piece of square upper and lower surface carry anti-skid bulge compacting iron plate, and compacting iron plate it is cornerwise
Two ends respectively process a screwed hole, a protection pipe connecting hole are processed in the center of compacting iron plate, in protection pipe connecting hole
Upper welding one is connected bore dia identical steel pillar with protection pipe, and wedge-shaped floor is welded between compacting iron plate and steel pillar,
Wedge-shaped floor is that 90 degree of radians are laid at equal intervals along along the lateral wall of steel pillar；The height of steel pillar is less than road below bedding
Dike first layer fills the compacted depth of soil layer；
4th step, with steel pillar under, compacting iron plate in upper mode, PVC sleeve pipes are nested into steel pillar, and make compacting iron
Plate lies in the following embankment first layer of bedding and filled on the surface of soil layer, roadbed is rolled with large roller, in roller compaction process
Compacting iron plate is rolled in the lump;
5th step, jack bolt is installed in screwed hole, and rotated with spanner, iron plate jack-up will be compacted, iron then will be compacted
Plate and steel pillar are extracted from the following soil layer of embankment first of the bedding of compacting, note keeping hole complete；
6th step, by settlement measurement vertical rod spreading, and be higher by the following embankment first layer of bedding fill 50 centimetres of the surface of soil layer with
On, while spreading PVC sleeve pipes, the mouth of pipe of PVC sleeve pipes will be slightly less than settlement measurement vertical rod, to measure, then outside PVC sleeve pipes
Extensive protection pipe is put, and the lower end of extensive protection pipe is embedded in the following soil layer of embankment first of bedding of compacting 2-5 centimetres, so
After fill the following soil layer of embankment second of bedding and strike off；
The steel pillar that 7th step, the band for making the 3rd step are compacted iron plate is nested into outside extensive protection pipe, keeps flat compacting iron plate
In the following embankment second layer constructing soil layer surface of bedding, then in the top clamping ring cap of extensive protection pipe, with large-scale pressure road
Machine is rolled on the compacting iron plate on the outside of extensive protection pipe, and iron plate and steel pillar are compacted in roller compaction process relative to extensive protection
Pipe sinks；
8th step, iron plate will be compacted from jack-up on the surface of the following soil layer of embankment second of bedding by jack bolt, then will pressure
Real iron plate is extracted from the following soil layer of embankment second of the bedding of compacting, keeps hole complete；
9th step, the process for repeating the 6th step to the 8th step, are sequentially completed the compacting of remaining roadbed soil layer.
When the present invention solves high-speed railway subgrade settlement monitoring, the measuring staff surrounding soil on sedimentation plate is in roller compaction process
In, soil body extruding measuring staff is easily caused the problem of subgrade settlement measurement is inaccurate, the measurement also solved in addition on sedimentation plate is stood
Bar surrounding soil rolls leakiness, the problem of compaction quality can not ensure.Scene of the present invention is realized simple to operate, substantially increases
The accuracy of high-speed railway subgrade settlement monitoring, it is ensured that the construction quality of roadbed.
The present invention is suitable for use with settling plate and measurement bar carries out the roadbed of the Settlement Observation.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the invention being laid in when the following embankment first layer of bedding fills soil layer 5.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
A kind of high-speed railway subgrade settlement monitoring element protection, including foundation of road bed 1 and the following embankment first layer of bedding are filled out
Soil layer 5 is built, sedimentation plate 2 and settlement measurement vertical rod 3 are provided with foundation of road bed 1, PVC is socketed with outside settlement measurement vertical rod 3
Sleeve pipe 4, is socketed with steel pillar 8 outside PVC sleeve pipes 4, and the center of compacting iron plate 6 is provided with steel pillar connecting hole 7, steel pillar 8
Top and the protection pipe connecting hole 7 that sets of compacting iron plate 6 center be fixed together, the height of steel pillar 8 is less than base
The following embankment first layer of bed fills the compacted depth of soil layer 5.
The upper and lower surface of compacting iron plate 6 is provided with anti-skid bulge 10, is provided between compacting iron plate 6 and steel pillar 8
Wedge-shaped floor 9, wedge-shaped floor 9 is that 90 degree of radians are laid at equal intervals on the lateral wall of steel pillar 8.
A kind of distribution method of high-speed railway subgrade settlement monitoring element protection, comprises the following steps：
The first step, foundation of road bed 1 is constructed, following the first soil layer of embankment 5 of bedding is filled on the foundation of road bed 1 constructed and is rolled；
Second step, the appropriate sand of preparation, fill in the following embankment first layer of bedding and one square are excavated at the design attitude on soil layer 5
Ready sand is layered on hole body center by the hole body of rice to foundation of road bed 1, and sedimentation plate 2 then is placed on into sand bedding course
On, connection settlement measurement vertical rod 3 is simultaneously levelling, PVC sleeve pipes 4 is inserted in settlement measurement vertical rod 3, and protect settlement measurement vertical rod 3
Hold in the center of PVC sleeve pipes 4, the soil body around backfill PVC sleeve pipes 4；
3rd step, take one piece of square upper and lower surface carry anti-skid bulge 10 compacting iron plate 6, and compacting iron plate 6 it is diagonal
The two ends of line respectively process a screwed hole 11, a protection pipe connecting hole 7 are processed in the center of compacting iron plate 6, in protection
One and the diameter identical steel pillar 8 of protection pipe connecting hole 7 are welded on pipe connecting hole 7, between compacting iron plate 6 and steel pillar 8
The wedge-shaped floor 9 of welding, wedge-shaped floor 9 is that 90 degree of radians are laid at equal intervals along along the lateral wall of steel pillar 8；The height of steel pillar 8
Degree is less than the compacted depth that the following embankment first layer of bedding fills soil layer 5；
4th step, with steel pillar 8 under, compacting iron plate 6 in upper mode, PVC sleeve pipes 4 are nested into steel pillar 8, and make pressure
Real iron plate 6 lies in the following embankment first layer of bedding and filled on the surface of soil layer 5, rolls roadbed with large roller, is rolling
During roll in the lump compacting iron plate 6, now the anti-skid bulge 10 on surface then serve increase compacting iron plate 6 with vibrations wheel and soil
The frictional force of body, prevents compacting iron plate 6 from producing horizontal displacement because of soil body extruding steel pillar 8 and wedge-shaped floor 9, roadbed has been rolled
After without rolling the soil body around settlement measurement vertical rod 3 with baby roller again；
5th step, jack bolt 12 is installed in screwed hole 11, and rotated with spanner, the jack-up of iron plate 6 will be compacted, then will pressure
Real iron plate 6 and steel pillar 8 are extracted from following the first soil layer of embankment 5 of bedding of compacting, note keeping hole complete；
6th step, by the spreading of settlement measurement vertical rod 3, and be higher by 50 centimetres of the surface that the following embankment first layer of bedding fills soil layer 5
More than, while spreading PVC sleeve pipes 4, the mouth of pipe of PVC sleeve pipes 4 will be slightly less than settlement measurement vertical rod 3, to measure, then in PVC
Extensive protection pipe 14 is put outside sleeve pipe 4, and the lower end of extensive protection pipe 14 is embedded in following the first soil layer of embankment 5 of bedding of compacting
Interior 2-5 centimetres, it can so prevent the lower end of extensive protection pipe 14 from producing horizontal shift, and extensive protection pipe 14 also plays benefit
The effect of the length of steel pillar 8 is filled, following the second soil layer of embankment 15 of bedding is then filled and strikes off；
The steel pillar 8 that 7th step, the band for making the 3rd step are compacted iron plate 6 is nested into outside extensive protection pipe 14, makes compacting iron plate 6
The surface that the following embankment second layer of bedding fills soil layer 15 is lain in, then in the top clamping ring cap of extensive protection pipe 14
13, rolled with large roller on the compacting iron plate 6 in the outside of extensive protection pipe 14, iron plate 6 and steel are compacted in roller compaction process
Pillar 8 sinks relative to extensive protection pipe 14, during the compacting following embankment second layer of bedding fills soil layer 15, due to prolonging
Stretch protection pipe 14 bottom be embedded into compacting the following embankment first layer of bedding fill in soil layer 5, protect extensive protection pipe 14
Plumbness is held, so as to ensure that settlement measurement vertical rod 3 is unaffected in soil layer compacting process；
8th step, iron plate 6 will be compacted from jack-up on the surface of following the second soil layer of embankment 15 of bedding by jack bolt 12, then
Compacting iron plate 6 is extracted from following the second soil layer of embankment 15 of bedding of compacting, keeps hole complete；
9th step, the process for repeating the 6th step to the 8th step, are sequentially completed the compacting of remaining roadbed soil layer.
Claims (3)
1. a kind of high-speed railway subgrade settlement monitoring element protection, including foundation of road bed（1）With the following embankment of bedding first
Layer fills soil layer（5）, in foundation of road bed（1）On be provided with sedimentation plate（2）With settlement measurement vertical rod（3）, in settlement measurement vertical rod
（3）On be socketed with PVC sleeve pipes（4）, it is characterised in that in PVC sleeve pipes（4）On be socketed with steel pillar（8）, in compacting iron plate（6）
Centre be provided with steel pillar connecting hole（7）, steel pillar（8）Top with compacting iron plate（6）The protection pipe that center is set connects
Connect hole（7）It is fixed together, steel pillar（8）Height be less than the following embankment first layer of bedding and fill soil layer（5）Pressure
Real thickness.
2. a kind of high-speed railway subgrade settlement monitoring element protection according to claim 1, it is characterised in that in pressure
Real iron plate（6）Upper and lower surface be provided with anti-skid bulge（10）, in compacting iron plate（6）With steel pillar（8）Between be provided with wedge shape
Floor（9）, wedge-shaped floor（9）It is in steel pillar（8）Lateral wall at equal intervals 90 degree of radians lay.
3. a kind of distribution method of high-speed railway subgrade settlement monitoring element protection, comprises the following steps：
The first step, construct foundation of road bed（1）, in the foundation of road bed constructed（1）On fill the following soil layer of embankment first of bedding（5）,
And roll；
Second step, the appropriate sand of preparation, soil layer is filled in the following embankment first layer of bedding（5）On design attitude at, excavate one
Square metre hole body to foundation of road bed（1）, ready sand is layered on hole body center, then, plate will be settled（2）Place
On sand bedding course, settlement measurement vertical rod is connected（3）And it is levelling, in settlement measurement vertical rod（3）On be inserted in PVC sleeve pipes（4）, and make to sink
Drop measurement vertical rod（3）It is maintained at PVC sleeve pipes（4）Center, backfill PVC sleeve pipes（4）The soil body of surrounding；
3rd step, take one piece of square upper and lower surface carry anti-skid bulge（10）Compacting iron plate（6）, in compacting iron plate（6）
Cornerwise two ends, respectively process a screwed hole（11）, in compacting iron plate（6）Centre process protection pipe company
Connect hole（7）, in protection pipe connecting hole（7）It is upper to weld one and protection pipe connecting hole（7）Diameter identical steel pillar（8）, in pressure
Real iron plate（6）With steel pillar（8）Between weld wedge-shaped floor（9）, wedge-shaped floor（9）It is along steel pillar（8）Lateral wall it is first-class
90 degree of interval radian is laid；Steel pillar（8）Height be less than the following embankment first layer of bedding and fill soil layer（5）Compacting it is thick
Degree；
4th step, with steel pillar（8）Under, iron plate is compacted（6）In upper mode, by PVC sleeve pipes（4）It is nested into steel pillar（8）
In, and make compacting iron plate（6）Lie in the following embankment first layer of bedding and fill soil layer（5）Surface on, ground with large roller
Roadbed is pressed, compacting iron plate is rolled in the lump in roller compaction process（6）；
5th step, by jack bolt（12）It is installed to screwed hole（11）In, and rotated with spanner, iron plate will be compacted（6）Jack-up, so
Afterwards, iron plate will be compacted（6）And steel pillar（8）From the following soil layer of embankment first of the bedding of compacting（5）It is middle to extract, keep hole complete
It is whole；
6th step, by settlement measurement vertical rod（3）Spreading, and be higher by the following embankment first layer of bedding and fill soil layer（5）Surface 50
More than centimetre, while spreading PVC sleeve pipes（4）, PVC sleeve pipes（4）The top mouth of pipe to be slightly less than settlement measurement vertical rod（3）,
PVC sleeve pipes（4）Put extensive protection pipe outside（14）, and make extensive protection pipe（14）Lower end insertion compacting the following embankment of bedding
First soil layer（5）Interior 2-5 centimetres, fill the following soil layer of embankment second of bedding（15）And strike off；
7th step, the band for making the 3rd step are compacted iron plate（6）Steel pillar（8）It is nested into extensive protection pipe（14）Outside, pressure is made
Real iron plate（6）Lie in the following embankment second layer of bedding and fill soil layer（15）Surface, in extensive protection pipe（14）Top card
Connect ring cap（13）, with large roller in extensive protection pipe（14）The compacting iron plate in outside（6）On roll；
8th step, pass through jack bolt（12）Iron plate will be compacted（6）From the following soil layer of embankment second of bedding（15）Surface on push up
Rise, iron plate will be compacted（6）From the following soil layer of embankment second of the bedding of compacting（15）It is middle to extract, keep hole complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400884.3A CN107100156A (en) | 2017-05-31 | 2017-05-31 | High-speed railway subgrade settlement monitoring element protection and its distribution method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400884.3A CN107100156A (en) | 2017-05-31 | 2017-05-31 | High-speed railway subgrade settlement monitoring element protection and its distribution method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100156A true CN107100156A (en) | 2017-08-29 |
Family
ID=59660522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400884.3A Pending CN107100156A (en) | 2017-05-31 | 2017-05-31 | High-speed railway subgrade settlement monitoring element protection and its distribution method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100156A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462211A (en) * | 2017-09-13 | 2017-12-12 | 大连理工大学 | A kind of road foundation settlement monitoring sensor for being suitable for having half/rigid structural layer |
| CN114812498A (en) * | 2022-04-20 | 2022-07-29 | 中铁一局集团有限公司 | Roadbed filling settlement observation rod height-connection anti-rolling structure and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008007317A1 (en) * | 2008-02-02 | 2009-08-06 | Enotec Gmbh, Prozess- Und Umweltmesstechnik | Protection device for measuring probe for measurement of oxygen concentration in flue gas channel of combustion system, has deviation plate fixed at protective pipe and extending over section of pipe, where section is present in gas flow |
| CN101684632A (en) * | 2009-08-21 | 2010-03-31 | 刘汉龙 | Settlement test method for embankment filling construction |
| CN205077528U (en) * | 2015-09-09 | 2016-03-09 | 广州市住宅建设发展有限公司 | A combination formula settlement plate simply install for ground monitoring |
| CN207079558U (en) * | 2017-05-31 | 2018-03-09 | 中铁二十一局集团第六工程有限公司 | High-speed railway subgrade settlement monitoring element protection |
-
2017
- 2017-05-31 CN CN201710400884.3A patent/CN107100156A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008007317A1 (en) * | 2008-02-02 | 2009-08-06 | Enotec Gmbh, Prozess- Und Umweltmesstechnik | Protection device for measuring probe for measurement of oxygen concentration in flue gas channel of combustion system, has deviation plate fixed at protective pipe and extending over section of pipe, where section is present in gas flow |
| CN101684632A (en) * | 2009-08-21 | 2010-03-31 | 刘汉龙 | Settlement test method for embankment filling construction |
| CN205077528U (en) * | 2015-09-09 | 2016-03-09 | 广州市住宅建设发展有限公司 | A combination formula settlement plate simply install for ground monitoring |
| CN207079558U (en) * | 2017-05-31 | 2018-03-09 | 中铁二十一局集团第六工程有限公司 | High-speed railway subgrade settlement monitoring element protection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462211A (en) * | 2017-09-13 | 2017-12-12 | 大连理工大学 | A kind of road foundation settlement monitoring sensor for being suitable for having half/rigid structural layer |
| CN107462211B (en) * | 2017-09-13 | 2023-05-05 | 大连理工大学 | Road subgrade settlement monitoring sensor suitable for semi/rigid structural layer |
| CN114812498A (en) * | 2022-04-20 | 2022-07-29 | 中铁一局集团有限公司 | Roadbed filling settlement observation rod height-connection anti-rolling structure and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207079558U (en) | High-speed railway subgrade settlement monitoring element protection | |
| CN101963061B (en) | Construction method for underground box culvert of existing railway line | |
| CN106049193B (en) | One kind being used for roadbed section ballastless track of high-speed railway center line method for correcting error | |
| CN103321118B (en) | Bridge road transition section roadbed structure of deep layer yielding ground regions | |
| CN103276639B (en) | Roadbed structure for deep soft soil region | |
| CN104894937A (en) | Construction method for mucky soft soil roadbase tubular pile | |
| CN102535263B (en) | Roadbed with pile-net composite structure and construction method thereof | |
| CN103233486A (en) | Testing device and testing method of anchor-tension type retaining wall model | |
| CN105696427A (en) | Construction method for reinforcing newly-built railway karst foundation and roadbed structure thereof | |
| CN203960700U (en) | The closed road structure of stake holder U-lag | |
| CN103835203B (en) | The construction method of jacking light road bank structure after a kind of deep soft foundation | |
| CN110144767B (en) | Side-width roadbed structure and construction method | |
| CN210134291U (en) | Broad structure of side of existing passenger dedicated line road bed | |
| CN105888675A (en) | Construction method for shield crossing railway line | |
| CN110761264A (en) | Secondary dynamic compaction gravel replacement and reinforcement method for coastal sludge soft soil foundation | |
| CN104746399A (en) | Construction method for preventing vehicle bump at bridge head | |
| CN203247614U (en) | Anchor-pulling type retaining wall model test device | |
| CN108108507B (en) | Design method for reinforcing railway karst roadbed by high-strength geotextile | |
| CN107100156A (en) | High-speed railway subgrade settlement monitoring element protection and its distribution method | |
| CN103741605A (en) | Method for restraining crack generation of beam body and restraining crack expansion of beam body | |
| CN108547276B (en) | Water sand-filled rock-socketed steel pipe pile working platform and construction method thereof | |
| CN110792009A (en) | Bridge head bump prevention and control structure based on concrete composite pavement and laying method thereof | |
| CN210737232U (en) | Side wide roadbed structure | |
| CN106283957B (en) | Medium-and low-speed maglev two-wire excavation location pile foundation joist framing type support rail beam transition section structure | |
| CN211006716U (en) | Combined retaining structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170829 |