CN110344451A - A kind of simulation cement paste around pile reinforcing influences the experimental rig and test method of research on pile foundation level bearer properties - Google Patents
A kind of simulation cement paste around pile reinforcing influences the experimental rig and test method of research on pile foundation level bearer properties Download PDFInfo
- Publication number
- CN110344451A CN110344451A CN201910585500.9A CN201910585500A CN110344451A CN 110344451 A CN110344451 A CN 110344451A CN 201910585500 A CN201910585500 A CN 201910585500A CN 110344451 A CN110344451 A CN 110344451A
- Authority
- CN
- China
- Prior art keywords
- pile
- model
- slurry
- circular die
- model casing
- 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.)
- Granted
Links
- 239000004568 cement Substances 0.000 title claims abstract description 58
- 238000011160 research Methods 0.000 title claims abstract description 19
- 238000004088 simulation Methods 0.000 title claims abstract description 16
- 238000010998 test method Methods 0.000 title claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 title description 7
- 239000002689 soil Substances 0.000 claims abstract description 73
- 239000002002 slurry Substances 0.000 claims abstract description 35
- 238000011068 loading method Methods 0.000 claims abstract description 26
- 239000004576 sand Substances 0.000 claims abstract description 21
- 238000013461 design Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 23
- 238000007569 slipcasting Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 241001074085 Scophthalmus aquosus Species 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth 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)
- Piles And Underground Anchors (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The experimental rig and test method that pile foundation level bearer properties are influenced with research are reinforced the invention discloses a kind of simulation cement paste around pile.The experimental rig includes model casing, loading motor, circular die, air compressor and slurry can.Model casing is welded by steel plate, and sand has been filled inside model casing, has buried soil pressure sensor inside sand；Circular die is made of aluminium alloy plate, and circular die is placed on design position；Slurry can is provided with the liquid soil cement stirred evenly, and Grouting Pipe is extend into the space between model casing inner circular mold and Model Pile, and liquid soil cement is injected into the space by Grouting Pipe by slurry can；The Model Pile in model casing is loaded by loading motor after soil cement maintenance to design age.Structure of the invention is reasonable, easy to operate, can be used for studying the load-carrying properties that quiet brill under different stress levels takes root in stake stake end enlarged footing, and the research for taking root in stake stake end enlarged footing load-carrying properties for quiet brill provides a kind of effective means.
Description
Technical field
The present invention relates to the experimental rigs of geotechnical engineering field pile foundation plinth horizontal bearing performance study, more particularly to one
Kind simulation cement paste around pile reinforces the experimental rig and test method that pile foundation level load-carrying properties are influenced with research, can be used for studying water
Soil slurry intensity difference, grouting pressure difference, stake week soil cement diameter and the asynchronous pile foundation level bearer properties of height.
Background technique
Pile foundation is widely used in the engineerings such as skyscraper, high-speed railway, highway and Longspan Bridge.In height
In fast highway, railway and science of bridge building, pile foundation undertakes horizontal loading in addition to also needing other than by vertical uniform load q.China southeast
Thick and soft groundsill layer is distributed in coastal area, and soil body engineering properties is poor, limits the performance of pile foundation level load-carrying properties.In recent years
Come, some scholars and engineers and technicians propose that the water of pile foundation can be improved by improving the intensity of the shallow-layer soil body around pile foundation
Flat bearer properties.At present about cement paste around pile reinforce it is also less to the research of pile foundation level bearer properties, have no system about
Cement paste around pile reinforces the test model influenced on pile foundation level bearer properties and experimental study.Some site test results show
The horizontal bearing characteristic of pile foundation can be improved by cement mixing method of constructing around pile foundation, however not about cement paste around pile
The system research that body intensity and the factors such as cement paste around pile range and depth influence pile foundation level bearer properties.Therefore, pass through
Model test carries the factors such as the intensity, grouting and reinforcing range and grouting and reinforcing depth of cement paste around pile body to pile foundation level
Influence has a very important significance, and research achievement can mention for the cement paste around pile reinforcing on piles under lateral load basis in Practical Project
For theoretical foundation.
Summary of the invention
The experimental rig that pile foundation level load-carrying properties are influenced with research is reinforced the present invention provides a kind of simulation cement paste around pile
And test method, the device can be used for simulating different cement grout intensity, different grouting pressures, piles with different week soil cement diameter
And the pile foundation level bearer properties of piles with different week soil cement height influence, which can preferably simulate cement paste around pile mistake
Journey.Design, the construction that test result of the invention can reinforce for the cement paste around pile on piles under lateral load basis in Practical Project mention
For theoretical foundation.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of experimental rig that the influence of pile foundation level bearer properties is studied in the reinforcing of simulation cement paste around pile, including model casing,
Loading motor, circular die, air compressor and slurry can；
The square model case is welded by steel plate, and bridle iron is welded in model casing bottom, and side welding H-bar is to increase
Add model casing rigidity；Sandy soils have been filled inside the model casing；Model Pile is equipped at the model casing center；The circular mode
Tool is hollow cylindrical body with a closed top, and its top is opened there are two circular hole, and one of circular hole is located at top center, and its
Diameter is identical as Model Pile diameter, and the Model Pile passes through the circular hole, and the top of Model Pile is higher than the top of circular die,
Processing is sealed to the gap between Model Pile and circular hole；It is embedded with inclinometer pipe in the sandy soils, at the top of sandy soils
It is embedded with several vertical rigid pipes in sand shallow-layer less than 1.0m, is fixed with several soil pressure sensings on the rigid pipe
Device is to measure horizontal earth pressure；
The loading motor bottom is vertically fixed on model casing side wall, and the minimum point of the loading motor is higher than circle
The top of mold；
The slurry can is equipped with relief valve, tap changer and Grouting Pipe；The Grouting Pipe passes through at the top of circular die
Another circular hole, the diameter of the Grouting Pipe is identical as the Circularhole diameter, between Grouting Pipe and circular hole gap carry out
Encapsulation process；Slurry can is provided with the liquid soil cement stirred evenly, and the Grouting Pipe is equipped with slip casting valve；The end of Grouting Pipe
Portion, for liquid soil cement to be injected into the space, forms stake Zhou Shui in the space between circular die and Model Pile
Soil；
The air compressor is equipped with appendix, and the appendix connect with slurry can, reaches in slurry can for making
To design grouting pressure value, the appendix is equipped with pressure gauge and tap changer.
In above-mentioned technical proposal, further, the diameter ratio of the bottom surface side length of the model casing and circular die is not
Less than 10.
Further, the distance and Model Pile diameter ratio of the Model Pile bottom to model casing bottom are not less than 10.
Further, the diameter of the circular die need to be greater than Model Pile diameter.
Further, the loading motor can be using unidirectional load and two kinds of loading methods of CYCLIC LOADING.
Further, the limit loaded value of the loading motor is 100kN, stroke 100mm.
Further, the slurry can is made of transparent organic glass, and volume scale is indicated on side wall.
Further, the moisture content of the liquid soil cement in the slurry can is more than liquid limit water content.
The experimental rig that pile foundation level bearer properties are influenced with research is reinforced the present invention also provides a kind of simulation cement paste around pile
Test method, include the following steps:
Sand is filled in model casing, and after the completion of when stake end, following sandy soils are filled, Model Pile is embedded in model casing
At the heart；Continue to fill sandy soils, and pre-buried inclinometer pipe and several vertical rigid pipes in the process, and fixed on rigid pipe
Several soil pressure sensors；Circular die is embedded at model casing center and its top is made to be lower than the bottom of motor, makes mould
Type stake passes through the center hole at the top of circular die；Air compressor and slurry can are installed, stirring is packed into slurry can
Grouting Pipe is extend into circular die and model by another circular hole that circular die top is opened by uniform cement soil sample
In the space of stake, adjusting air compressor makes to reach design grouting pressure value in slurry can, and design grouting pressure is maintained to start to infuse
Slurry, at leisure takes out circular die while slip casting from sand；Full of stake week around Model Pile after the completion of slip casting process
Soil cement；Slip casting loads Model Pile by loading motor after completing 28-90 days.
Compared with prior art, the beneficial effects of the present invention are:
1, slip casting space around stake top is reserved using circular die during sand fills in the present invention, sandy soils fill
The cement grout stirred evenly is injected into stake week reserved space after the completion, can preferably simulate stake week in Practical Project
Slip casting process.
2, the pre-buried inclinometer pipe of sandy soils pile foundation Partner can measure the level of the soil body during test in the present invention
Displacement, pre-buried soil pressure sensor can measure the horizontal earth pressure and horizontal earth pressure of the Partner soil body during test
Dissipation law.
3, the pre-buried circular die diameter in the present invention and height can be adjusted, to change stake week soil cement diameter
And height, pile peripheral earth process range can be studied with influence of the depth to pile foundation level load-carrying properties is handled.
4, the loading motor in the present invention can be loaded unidirectionally and CYCLIC LOADING, and it is strong can to meet different cement grouts
Degree, different grouting pressure, piles with different week soil cement diameter and piles with different week soil cement height cement paste around pile reinforce pile foundation water
The test requirements document of flat bearer properties research.
Detailed description of the invention
Fig. 1 is slip casting step-by-step test schematic device；
Fig. 2 is experimental rig schematic diagram after the completion of slip casting；
Fig. 3 is circular die side view；
Fig. 4 is circular die top view；
In figure: model casing 1, bridle iron 1-1, I-steel 1-2, sandy soils 1-3, inclinometer pipe 1-4, soil pressure sensor 1-5,
Rigid pipe 1-6, Model Pile 1-7, stake week soil cement 1-8, loading motor 2, steel bracket 2-1, circular die 3, air compressor 4,
Appendix 4-1, pressure gauge 4-2, tap changer 4-3, slurry can 5, relief valve 5-1, tap changer 5-2, Grouting Pipe 5-3, slip casting
Valve 5-4.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1 and Figure 2, the present invention is analog difference cement grout intensity, different grouting pressures, piles with different week
The examination that soil cement diameter and the test pile week grouting and reinforcing of piles with different week soil cement height influence pile foundation level bearer properties
Experiment device, including model casing 1, loading motor 2, circular die 3, air compressor 4 and slurry can 5 totally five parts.
The model casing 1 is square model case, is welded by steel plate, and bridle iron 1-1, side top are welded in model casing bottom
For portion welding H-bar 1-2 to increase model casing rigidity, 1 side length of model casing is 4m, high 3m；It is filled inside model casing 1 certain closely knit
The sandy soils 1-3 of degree, sandy soils 1-3 require to be filled using distinct methods according to design compactness；The sandy soils fill
Method is sand rain method (when design compactness is smaller) and compaction in layers method (when design compactness is larger)；The sandy soils 1-3 is filled out
During building in the sand of passive area pre-buried inclinometer pipe 1-4 to measure passive area earth horizontal displacement；The sandy soils 1-3 is filled
In the process in the sand of passive area pre-buried soil pressure sensor 1-5 to measure horizontal earth pressure；The soil pressure sensor 1-5 is solid
It is scheduled on vertical rigid pipe 1-6；The rigid pipe 1-6 diameter is 10mm, and model casing side wall is fixed on during sand fills
On, rigid pipe need to keep vertical；Model Pile 1-7 is placed at 1 center of model casing；The circular die 3 is embedded in model casing 1
At center, and Model Pile 1-7 is located at 3 center of circular die；3 diameter of circular die can be adjusted according to test requirements document
It is whole, 1.5 times, 2.0 times, 2.5 times and 3.0 times of Model Pile 1-7 diameter can be set as, circular die height can also be according to test requirements document
It is adjusted, 0.2m, 0.4m, 0.6m, 0.8m and 1.0m can be set as；The loading motor 2 is fixed on mould by steel bracket 2-1
On molding box side wall；Air pressure is input in slurry can 5 by the air compressor 4 by appendix 4-1, and pressure is provided on appendix
Power table 4-2 and tap changer 4-3；It is the liquid soil cement stirred evenly inside the slurry can 5, is provided with and lets out on slurry can 5
Pressure valve 5-1 and tap changer 5-2 is connect by Grouting Pipe 5-3 with model casing；Slip casting valve is provided on the Grouting Pipe 5-3
5-4, and slip casting tube end need to be embedded in the space between circular die 3 and Model Pile 1-7, and liquid soil cement is injected into
In the space, stake week soil cement 1-8 is formed.
The course of work of the invention is as follows: firstly the need of the sandy soils 1-3 for filling certain compactness in model casing 1, when
When design requirement sandy soils compactness is smaller, sandy soils 1-3 is prepared using sand rain method, passes through control sand shake-out device bottom and test
Soil body surface is fallen away from the soil body compactness of design requirement is obtained, when design requirement sandy soils compactness is larger, using layering
Compacting method fills sandy soils, obtains the soil body compactness of design requirement by the method for control sand dry density and volume；Work as stake
After the completion of holding following sandy soils to fill, Model Pile 1-7 is embedded at 1 center of model casing；Sand fill during in passive area
Pre-buried inclinometer pipe 1-4 is in sand to measure passive area earth horizontal displacement, and pre-buried soil pressure sensor 1-5 is to measure horizontal soil
Pressure；When sandy soils fill certain altitude, circular die 3 is embedded at 1 center of model casing, and Model Pile 1-7 is in
It is the injection reserved space of cement grout at the center of circular die 3；Grouting Pipe 5-3 is extend into circular die 3 and mould
In the space of type stake 1-7, air compressor 4 and slurry can 5 are installed, the test water stirred evenly is packed into slurry can 4
Soil sample, adjusting air compressor 4 makes to reach design grouting pressure value in slurry can 5, and design grouting pressure is maintained to start to infuse
Slurry, circular die 3 is taken out, need to close at the top of circular die 3 during slip casting from sand at leisure while slip casting；Note
Soil cement 1-8 is full of after the completion of slurry process around Model Pile 1-7；Slip casting complete 28 days after by loading motor 2 to Model Pile into
Row load, loading motor, which is further applied load and is displaced, to be read and store automatically, the Model Pile Partner soil body during test
The soil lateral pressure of horizontal displacement and the soil body can measure in test.
Claims (9)
1. a kind of simulation cement paste around pile reinforces the experimental rig that pile foundation level bearer properties are influenced with research, it is characterised in that: packet
Include model casing (1), loading motor (2), circular die (3), air compressor (4) and slurry can (5)；
The model casing (1) is welded by steel plate, and bridle iron (1-1) is welded in model casing bottom, side welding H-bar (1-2)
To increase model casing rigidity；Sandy soils (1-3) has been filled inside the model casing (1)；Mould is equipped at model casing (1) center
Type stake (1-7)；The circular die (3) is hollow cylindrical body with a closed top, and top is opened there are two circular hole, one of them
Circular hole is located at top center, and its diameter is identical as the diameter of Model Pile (1-7), and the Model Pile (1-7) passes through the circular hole,
And the top of Model Pile (1-7) is higher than the top of circular die (3), is sealed place between the Model Pile (1-7) and circular hole
Reason；It is embedded with inclinometer pipe (1-4) in the sandy soils (1-3), several vertical rigid pipes (1-6) is embedded in sand shallow-layer,
Several soil pressure sensors (1-5) are fixed on the rigid pipe (1-6) to measure horizontal earth pressure, the sand shallow-layer
It is less than 1m at a distance from the top of sandy soils；
Loading motor (2) bottom is vertically fixed on model casing side wall, and the minimum point of the loading motor (2) is higher than circle
The top of shape mold (3)；
The slurry can (5) is equipped with relief valve (5-1), tap changer (5-2) and Grouting Pipe (5-3)；Grouting Pipe (the 5-
3) another circular hole at the top of circular die (3) is passed through, and the diameter of Grouting Pipe (5-3) is identical as the Circularhole diameter, Grouting Pipe
Processing is sealed between (5-3) and circular hole；Slurry can (5) is provided with the liquid soil cement stirred evenly, the Grouting Pipe (5-
3) it is equipped with slip casting valve (5-4)；The end of Grouting Pipe (5-3) is located at the space between circular die (3) and Model Pile (1-7)
It is interior, for liquid soil cement to be injected into the space, formed stake week soil cement (1-8)；
The air compressor (4) is equipped with appendix (4-1), and the appendix (4-1) connect with slurry can (5), is used for
Make to reach design grouting pressure value in slurry can (5), the appendix (4-1) is equipped with pressure gauge (4-2) and tap changer
(4-3)。
2. simulation cement paste around pile according to claim 1 is reinforced the test for influencing research to pile foundation level bearer properties and is filled
It sets, which is characterized in that the bottom surface side length of the model casing (1) and the diameter ratio of circular die (3) are not less than 10.
3. simulation cement paste around pile according to claim 1 is reinforced the test for influencing research to pile foundation level bearer properties and is filled
It sets, which is characterized in that the distance and Model Pile (1-7) diameter ratio of the Model Pile bottom (1-7) to model casing (1) bottom
Not less than 10.
4. simulation cement paste around pile according to claim 1 is reinforced the test for influencing research to pile foundation level bearer properties and is filled
It sets, which is characterized in that the diameter of the circular die (3) need to be greater than Model Pile (1-7) diameter.
5. simulation cement paste around pile according to claim 1 is reinforced the test for influencing research to pile foundation level bearer properties and is filled
It sets, which is characterized in that the loading motor (2) can be using unidirectional load and two kinds of loading methods of CYCLIC LOADING.
6. simulation cement paste around pile according to claim 1 is reinforced the test for influencing research to pile foundation level bearer properties and is filled
It sets, which is characterized in that the limit loaded value of the loading motor is 100kN, stroke 100mm.
7. simulation cement paste around pile according to claim 1 is reinforced the test for influencing research to pile foundation level bearer properties and is filled
It sets, which is characterized in that the slurry can (5) is made of transparent organic glass, and volume scale is indicated on side wall.
8. simulation cement paste around pile according to claim 1 is reinforced the test for influencing research to pile foundation level bearer properties and is filled
It sets, which is characterized in that the moisture content of the liquid soil cement in the slurry can (5) is more than liquid limit water content.
9. a kind of reinforce such as the described in any item simulation cement paste around pile of claim 1-8 influences to study on pile foundation level bearer properties
Experimental rig test method, which comprises the steps of:
Sand is filled in model casing (1), and Model Pile (1-7) is embedded at model casing (1) center；Continue to fill sand
Layer, and pre-buried inclinometer pipe (1-4) and several vertical rigid pipes (1-6) in the process, and in rigid pipe (1-6) if on fixation
Dry ground pressure sensor (1-5)；Circular die (3) is embedded at model casing (1) center and makes its top lower than motor (2)
Bottom makes Model Pile (1-7) to pass through the center hole at the top of circular die (3)；Install air compressor (4) and storage slurry
Tank (5) is packed into the cement soil sample stirred evenly in slurry can (4), and Grouting Pipe (5-3) is passed through at the top of circular die (3)
Another circular hole extend into the space of circular die (3) and Model Pile (1-7), adjusting air compressor (4) makes slurry can
(5) in reach design grouting pressure value, maintain design grouting pressure start slip casting, while slip casting by circular die (3) from
It is taken out in sand；Stake week soil cement (1-8) is full of after the completion of slip casting process around Model Pile (1-7)；After slip casting is completed 28-90 days
Model Pile (1-7) is loaded by loading motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585500.9A CN110344451B (en) | 2019-07-01 | 2019-07-01 | Test device and test method for simulating influence study of grouting reinforcement around pile on horizontal bearing characteristics of pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585500.9A CN110344451B (en) | 2019-07-01 | 2019-07-01 | Test device and test method for simulating influence study of grouting reinforcement around pile on horizontal bearing characteristics of pile foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110344451A true CN110344451A (en) | 2019-10-18 |
| CN110344451B CN110344451B (en) | 2024-01-19 |
Family
ID=68177000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910585500.9A Active CN110344451B (en) | 2019-07-01 | 2019-07-01 | Test device and test method for simulating influence study of grouting reinforcement around pile on horizontal bearing characteristics of pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110344451B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560994A (en) * | 2020-05-28 | 2020-08-21 | 南京南智先进光电集成技术研究院有限公司 | Cement mixing pile construction monitoring system and method |
| CN113295845A (en) * | 2021-05-08 | 2021-08-24 | 广东工业大学 | Indoor simulation microorganism sand pile test method |
| CN114487342A (en) * | 2021-12-28 | 2022-05-13 | 西安理工大学 | Visual pile periloess collapsibility determination and reinforcement test device and method |
| CN115434378A (en) * | 2022-08-12 | 2022-12-06 | 青岛理工大学 | Single-phase method automatic grouting system and method for energy pile in EICP (electronic engineering and environmental protection) mineralization environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005315611A (en) * | 2004-04-27 | 2005-11-10 | Geotop Corp | Horizontal load testing method of pile |
| KR20120114706A (en) * | 2011-04-08 | 2012-10-17 | 목포대학교산학협력단 | Load test apparatus |
| CN106769478A (en) * | 2017-01-23 | 2017-05-31 | 浙江大学 | A kind of pile-soil interface shearing test device |
| CN107142975A (en) * | 2017-05-04 | 2017-09-08 | 太原理工大学 | A kind of experimental rig and method for simulating soil around pile radial direction anisotropism |
| CN107268691A (en) * | 2017-07-04 | 2017-10-20 | 山东大学 | A kind of test model and test method that lifting bearing capacity of pile foundation is starched suitable for after-teeming |
| CN210507558U (en) * | 2019-07-01 | 2020-05-12 | 浙江大学 | Device for simulating influence research of pile periphery grouting reinforcement on horizontal bearing characteristic of pile foundation |
-
2019
- 2019-07-01 CN CN201910585500.9A patent/CN110344451B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005315611A (en) * | 2004-04-27 | 2005-11-10 | Geotop Corp | Horizontal load testing method of pile |
| KR20120114706A (en) * | 2011-04-08 | 2012-10-17 | 목포대학교산학협력단 | Load test apparatus |
| CN106769478A (en) * | 2017-01-23 | 2017-05-31 | 浙江大学 | A kind of pile-soil interface shearing test device |
| CN107142975A (en) * | 2017-05-04 | 2017-09-08 | 太原理工大学 | A kind of experimental rig and method for simulating soil around pile radial direction anisotropism |
| CN107268691A (en) * | 2017-07-04 | 2017-10-20 | 山东大学 | A kind of test model and test method that lifting bearing capacity of pile foundation is starched suitable for after-teeming |
| CN210507558U (en) * | 2019-07-01 | 2020-05-12 | 浙江大学 | Device for simulating influence research of pile periphery grouting reinforcement on horizontal bearing characteristic of pile foundation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111560994A (en) * | 2020-05-28 | 2020-08-21 | 南京南智先进光电集成技术研究院有限公司 | Cement mixing pile construction monitoring system and method |
| CN113295845A (en) * | 2021-05-08 | 2021-08-24 | 广东工业大学 | Indoor simulation microorganism sand pile test method |
| CN114487342A (en) * | 2021-12-28 | 2022-05-13 | 西安理工大学 | Visual pile periloess collapsibility determination and reinforcement test device and method |
| CN114487342B (en) * | 2021-12-28 | 2024-02-02 | 西安理工大学 | Visual pile Zhou Huangtu collapsibility determination and reinforcement test device and method |
| CN115434378A (en) * | 2022-08-12 | 2022-12-06 | 青岛理工大学 | Single-phase method automatic grouting system and method for energy pile in EICP (electronic engineering and environmental protection) mineralization environment |
| CN115434378B (en) * | 2022-08-12 | 2024-04-19 | 青岛理工大学 | Single-phase automatic grouting system and method for energy piles in EICP mineralized environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110344451B (en) | 2024-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110344451A (en) | A kind of simulation cement paste around pile reinforcing influences the experimental rig and test method of research on pile foundation level bearer properties | |
| CN106644336B (en) | A kind of frame structure crosses over ground fissure experimental system and method | |
| CN106596268B (en) | Multi-immersion working condition simulation test model box and test method | |
| CN102519811B (en) | Model and method for testing deformation and stress variation law of intensity attenuation roadbed | |
| CN110208489B (en) | Simulation test device and test method for capillary water rise height in roadbed soil | |
| CN110331743B (en) | Test device and test method for testing bearing performance of enlarged head of pile end of static drilling root planting pile | |
| CN106840086A (en) | The rapidly solidified weak soil experimental rig of low Low Level vacuum method | |
| CN206523371U (en) | Pile-soil interface shearing test device | |
| CN106049557A (en) | Indoor testing device for simulating grouting pile end post-grouting and testing method | |
| CN107727342A (en) | Wave load loading device and test method based on model groove | |
| CN107748048A (en) | Sash reinforcement with prestressed anchor side slope shaking table model device and construction method | |
| CN105350488B (en) | A kind of assay device of sheet-pile wharf and preparation method thereof and test method | |
| CN106644733A (en) | Testing equipment for simulating response on embedded type pile-seabed by one-dimensional wave load | |
| CN115839822B (en) | System and method for testing process of submerged and pumping drainage of mountain tunnel induced by heavy rainfall | |
| CN111021440A (en) | CPT integrated geotechnical packaging granular pile indoor model test device and method | |
| CN106013267B (en) | A kind of vertical anti-pulling concrete model stake and its method of construction and application | |
| CN107167385A (en) | The indoor test device and method of anchor stress loss | |
| CN202372418U (en) | Testing model for strength weakening roadbed deformation and stress change law | |
| CN210507558U (en) | Device for simulating influence research of pile periphery grouting reinforcement on horizontal bearing characteristic of pile foundation | |
| CN106400857B (en) | For the model equipment and method of the inaccessible degree of soil plug in in-site measurement opening pile | |
| CN115478568B (en) | Pile soil contact surface shearing experiment device for drainage pile | |
| CN106948386A (en) | One kind is banketed side friction model test apparatus and its test method | |
| CN210684814U (en) | Test device for testing bearing performance of pile end expanding head of static drill root planting pile | |
| CN206540536U (en) | The rapidly solidified weak soil experimental rig of low Low Level vacuum method | |
| CN210684813U (en) | Tubular pile-cement soil contact surface sample preparation device and friction characteristic research device thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |