CN108982224A - A kind of experimental rig and method of test pile and slip casting soil body contact surface failure mechanism - Google Patents
A kind of experimental rig and method of test pile and slip casting soil body contact surface failure mechanism Download PDFInfo
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- CN108982224A CN108982224A CN201811148936.3A CN201811148936A CN108982224A CN 108982224 A CN108982224 A CN 108982224A CN 201811148936 A CN201811148936 A CN 201811148936A CN 108982224 A CN108982224 A CN 108982224A
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- 238000012360 testing method Methods 0.000 title claims abstract description 98
- 239000002689 soil Substances 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 title claims abstract description 48
- 238000007569 slipcasting Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000010998 test method Methods 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- KQTVWCSONPJJPE-UHFFFAOYSA-N etridiazole Chemical compound CCOC1=NC(C(Cl)(Cl)Cl)=NS1 KQTVWCSONPJJPE-UHFFFAOYSA-N 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003556 assay Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 241001572175 Gaza Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention provides the experimental rig of a kind of test pile and slip casting soil body contact surface failure mechanism, including loading device and tubular pole model test box；The loading device includes reaction frame, is arranged on the reaction frame to the loading mechanism of tubular pole model test box offer pressure；The inside top of the reaction frame is arranged in the tubular pole model test box being mounted on the reaction frame, the loading mechanism；The tubular pole model test box is removably disposed in the inside of the reaction frame；The loading mechanism is located at the top of the tubular pole model installation position of the tubular pole model test box；The inside top of the reaction frame is equipped with the displacement detector of the longitudinal movement position for detecting the tubular pole model.The present invention also provides a kind of test test methods of test tubular pole and slip casting soil body contact surface failure mechanism carried out using the experimental rig.By above structure and step, the present invention is convenient for disassembly and assembly, moves, and load is accurate and strength and stiffness meet the pile foundation model assay systems of test requirements document and carry out going on smoothly for guarantee test.
Description
Technical field
The invention belongs to civil engineering experimental rig technical fields, and in particular to a kind of test pile and slip casting soil body contact surface
The experimental rig and method of failure mechanism.
Background technique
Pile foundation is the common base form of high-rise, and the application in soft clay area is especially extensive.Stake is infused behind side
Slurry technology can reduce sediment of the hole bottom thickness, improve stake end and soil around pile performance, to the load-carrying properties for improving stake, reduce stake
Sedimentation has remarkable result, and wherein stake and the interaction of the slip casting soil body are one of the principal elements made the most of the advantage.Study stake and note
The mechanical characteristics of puddled soil contact level are the basis for understanding slip casting pipe pile force-mechanism, the contact face mechanical spy of structure and the soil body
Sign research is also always an important topic in geotechnical engineering field.
Currently, the Discontinuous Deformations such as stake and the shearing of its cement paste around pile soil body, the changing of the relative positions and disengagement destroy problem, still lack
Go deep into systematic research.Main cause is to assume that the contact interface of stake and soil is failure mechanics in existing testing equipment operating process,
Two kinds of material compatibilities of deformation, and actually stake with interface shear strength when Soil Interface failure by shear could possibly be higher than cutting for soil body itself
Shearing stress, so that shear breakage occurs in inside soil body.The design concept of "current" model stake testing equipment causes it to this examination
The specific aim tested is not strong, and precision is not high, and test result has biggish randomness, and cumbersome, is not suitable for carrying out a large amount of mould
Type stake test, therefore lack enough test datas and compare and analyze.
Summary of the invention
It the purpose of the invention is to overcome problem of the prior art, provides a kind of convenient for disassembly and assembly, moves, load is accurate
And strength and stiffness meet the test pile of test requirements document and the experimental rig of slip casting soil body contact surface failure mechanism.
The test tubular pole and slip casting soil body contact surface failure mechanism carried out the present invention also provides the experimental rig described in one kind
Test test method.
To solve the above-mentioned problems, the present invention is achieved by following technical scheme:
A kind of experimental rig of test pile and slip casting soil body contact surface failure mechanism, including loading device and the examination of tubular pole model
Tryoff；The loading device includes reaction frame, is arranged on the reaction frame to the load of tubular pole model test box offer pressure
Mechanism；The tubular pole model test box being mounted on the reaction frame,
The inside top of the reaction frame is arranged in the loading mechanism；The tubular pole model test box is removably disposed
In the inside of the reaction frame；The loading mechanism is located at the top of the tubular pole model installation position of the tubular pole model test box；
The inside top of the reaction frame is equipped with the displacement detector of the longitudinal movement position for detecting the tubular pole model.
Preferably, the reaction frame includes upper frame and lower frame；The side wall of the upper frame and the lower frame
Side wall is all equipped with several installation through-holes, and the upper frame and the lower frame are mounted on the installation through-hole and nut by bolt
Locking is detachably connected.
Preferably, the upper frame includes at least two bodies of rod disposed in parallel in " recessed "；Two adjacent institutes
The body of rod is stated to be attached by way of connecting rod is across the two.
Preferably, being provided with a connecting rod in the middle part of the body of rod disposed in parallel；One fixed plate is removably installed
At the middle part of the inside top of the upper frame；Loading mechanism is fixedly installed in the fixed plate.
Preferably, the side wall of the bottom plate of the reaction frame is equipped at least two installation recess, the tubular pole model examination
The bottom of tryoff is equipped with cushion block；The tubular pole model test box is mounted on installation recess by cushion block and is mounted in reaction frame.
Preferably, the connecting rod is detachably connected by high-strength bolt component.
Preferably, bottom plate institute's displacement sensing device is displacement meter, the loading mechanism is ultrathin jack.
Preferably, the tubular pole test model case includes cabinet, the preceding tank wall of the cabinet includes at least two pieces removable
Unload plate body.
A kind of test examination using the experimental rig test tubular pole carried out and slip casting soil body contact surface failure mechanism
Proved recipe method, it is characterised in that the following steps are included:
Composition model chamber, and be mounted on lower frame；
It the height of frame and is fixed with lower frame according to the situation of burying of the tubular pole to be tested, in adjusting；
Bottom in model test box is laid with the test soil body, tests the thickness of the soil body in 15cm~30cm；
Pressure cell is set in tubular pole bottom, tubular pole is placed on pan soil and corresponds to the middle position of upper frame；
It is arranged pvc pipe corresponding with tubular pole outside tubular pole, remains for being perfused in advance between pvc pipe inner surface and tubular pole outer surface
The gap of cement slurry；Several strain rosettes being arranged symmetrically are posted in the outer surface of the tubular pole, and displacement is provided at the top of tubular pole and is passed
Sensor；
Fill cabinet with the test soil body: the test soil of every filling 30cm height is just once compacted, until burying pvc pipe
Outer surface top layer strain rosette.
It after testing native soil compaction, tightens pvc pipe and extracts, form the outer surface for testing the soil body and pvc pipe ripple
Identical lines；
The grout injection between tubular pole and the soil body；
Ring steel plate is inserted in Model Pile after theing cement solidifies, it is ensured that cement plane phase of its internal diameter with cement slurry and the soil body
It cuts；
Loading device applies vertical pressure to tubular pole from top；Record the strain rosette, displacement sensor, pressure gauge, pressure
The data that power box monitors.
Preferably, ring steel plate is inserted in Model Pile after the setting time that cement was stood more than 28 days.
Compared with prior art, the beneficial effects of the present invention are:
By above structure, the present invention is convenient for disassembly and assembly, moves, and load is accurate and strength and stiffness meet test requirements document
Pile foundation model assay systems carry out going on smoothly for guarantee test.Separate type experimental rig realizes point of loading device and model casing
From.The self weight of reaction frame and loading mechanism is lighter, and reaction frame can all around move freely under the action of manpower, improves whole
A model assay systems shorten loading device to Model Pile stake to different height, the applicability of different type Model Pile
The distance at end, is avoided as much as possible the case where leading to load eccentricity using cushion block and transmission rod, also facilitates various instruments and instrument
Table is connected and fixed.Loading mechanism can also be finely adjusted during loading, and load is allowed accurately to act on Model Pile
On center, bias-load is avoided to bring to obtain error as far as possible.Tubular pole test model case and loading device are separable, thus repeatable
Using and improve convenient transportation.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing:
Fig. 1 is the structural representation of the experimental rig of test pile of the present invention and slip casting soil body contact surface failure mechanism
Figure；
Fig. 2 is that the application structure of test pile of the present invention and the experimental rig of slip casting soil body contact surface failure mechanism is shown
It is intended to；
Front when Fig. 3 is test pile of the present invention and the experimental rig test of slip casting soil body contact surface failure mechanism
Structural schematic diagram
Fig. 4 is that the plan structure of test pile of the present invention and the experimental rig of slip casting soil body contact surface failure mechanism is shown
It is intended to.
Fig. 5 is the structural schematic diagram of tubular pole of the present invention.
Wherein:
1-loading device；11-reaction frames；111-upper frames；1111-the first body of rod；112-lower frames；1121—
Second body of rod；1122-auxiliary positioning bars；113-connecting rods；12-loading mechanisms；13-displacement meters；2-tubular pole model tests
Case；21-detachable planks；22-cushion blocks；3-tubular poles；31-strain rosettes.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in Figure 1 to 4, the experimental rig of test pile of the present invention and slip casting soil body contact surface failure mechanism,
Including loading device and tubular pole model test box；The loading device includes reaction frame, is arranged on reaction frame to tubular pole model
The loading mechanism of chamber offer pressure；Tubular pole model test box is mounted on reaction frame.
Reaction frame includes upper frame and lower frame.
Upper frame include at least two it is disposed in parallel in fall " recessed " first bodies of rod, preferably two；Adjacent two
First body of rod is attached by way of connecting rod is across the two.A connection is provided in the middle part of first body of rod disposed in parallel
Bar, the connecting rod and first body of rod are mutually inseparable；The both ends at the top of first body of rod disposed in parallel all pass through two
Connecting rod connection, those connecting rods are connect by high-strength bolt component with first body of rod.
Lower frame include at least two second bodies of rod disposed in parallel in " recessed ", preferably two；Two adjacent bars
Body is attached by way of connecting rod is across the two.The both ends at the top of second body of rod disposed in parallel all pass through two
Connecting rod connection, those connecting rods are connect by high-strength bolt component with second body of rod.The outside at the both ends of second body of rod
All extend auxiliary positioning bar in wall bottom；In actual use process, in the gaza auxiliary positioning Gan Shangdian, the weights such as packet, can be prevented
Reaction frame is propped up when loading device force is excessive, and guarantee test is gone on smoothly.
The side wall of the bottom of lower frame is equipped at least two installation recess, and the bottom of tubular pole model test box is equipped with pad
Block；Tubular pole model test box is mounted on installation recess by cushion block and is mounted in reaction frame.
The side of the body of rod of the side and lower frame of the body of rod of upper frame is all equipped with several installation through-holes, upper frame and lower frame
Frame is mounted on installation through-hole by bolt and nut locking is detachably connected.Pass through upper frame and the respective installation of lower frame
The corresponded manner of through-hole realizes after being fixed by bolt and nut so as to adjust the height relative to lower frame of upper frame
The adjustment of upper frame height.
One fixed plate is removably mounted on the middle part of the inside top of frame；Upper ledge is provided with the second installation through-hole,
Fixed plate is equipped with third installation through-hole, and the two is connected by high-strength bolt component.
Fixed plate is fixedly installed loading mechanism and displacement detector.Displacement detector is displacement meter, loading mechanism
For ultrathin jack.Loading mechanism and displacement detector are all located at the inside at the top of frame.
Loading mechanism and displacement detector are all located at the top of the tubular pole model installation position of tubular pole model test box.
Tubular pole test model case includes cabinet, and cabinet includes that antetheca is open main box and detachable plank；Detachably
The both ends of plank are respectively equipped with convex block, and main box is equipped with the card slot of corresponding convex block, and detachable plank is inserted into card slot by convex block
In to being mounted on cabinet, constitute the antetheca of cabinet.
Separate type experimental rig realizes the separation of loading device and model casing.The self weight of reaction frame and loading mechanism compared with
Gently, reaction frame can all around move freely under the action of manpower, improve entire model assay systems to different height, no
The applicability of same type Model Pile, and loading device is shortened to the distance at Model Pile stake end, it is avoided as much as possible using pad
The case where block and transmission rod lead to load eccentricity also facilitates being connected and fixed for various instruments and instrument.Loading mechanism can also be with
It can be finely adjusted during loading, load is allowed accurately to act on the center of Model Pile, avoid bias-load band as far as possible
To obtain error.Tubular pole test model case and loading device are separable, thus reusable and improve convenient transportation.Test
The device overwhelming majority is connected by screw bolts, and is easy to splice and reequip, and can be reequiped after having carried out primary test for other tests, be kept away
The waste for having exempted from steel, economizes on resources.Fourth is that realizing the sectional disassembly of plank in the notch of front, test people is facilitated
Member's shovel soil and disengaging arrange soil sample.
The other structures of test pile described in the present embodiment and the experimental rig of slip casting soil body contact surface failure mechanism are referring to existing
There is technology.
The test tubular pole that the experimental rig of test pile of the present invention and slip casting soil body contact surface failure mechanism carries out with
The test test method of slip casting soil body contact surface failure mechanism, comprising the following steps:
Composition model chamber, and model test box is mounted on lower frame；
According to the situation of burying of the tubular pole to be tested, upper frame adjustment is fixed to suitable height and with lower frame；
Bottom in model test box is laid with test soil, tests the thickness of soil in 15cm~30cm；
Pressure cell is set in tubular pole bottom, tubular pole is placed on pan soil and corresponds to the middle position of upper frame；
It is arranged pvc pipe corresponding with tubular pole outside tubular pole, remains for being perfused in advance between pvc pipe inner surface and tubular pole outer surface
The gap of cement slurry；Post several strain rosettes (shown in Fig. 5) being arranged symmetrically, the top setting of tubular pole in the outer surface of the tubular pole
There is displacement sensor；
Fill cabinet with the test soil body: the test soil of every filling 30cm height is just once compacted, until burying pvc pipe
Outer surface top layer strain rosette.
It after testing native soil compaction, tightens pvc pipe and extracts, form the outer surface for testing the soil body and pvc pipe ripple
Identical lines.It illustrates, pvc pipe is two semicircles, and tube top portion has bolt hole for by two halves there are two ear on ear
PVC pipe is fixed, and removes down bolt there are certain gap between two semicircles when fixed, does not just have between two semi-circular tubes
There is connection, it can be to be removed after jam-packed, and the lines of the soil body can not be destroyed.
The grout injection between tubular pole and the soil body；
After the setting time that cement was stood more than 28 days, ring steel plate is inserted in Model Pile, it is ensured that the same cement of its internal diameter
The cement plane of slurry and the soil body is tangent；
Loading device applies vertical pressure to tubular pole from top.
The data that the strain rosette, displacement sensor, pressure gauge, pressure cell monitor are recorded, subsequent analysis is used for.
To carry out the test of other models, as long as repeating the above steps after the bellows of replacement different model.
Compared with prior art, test method of the present invention can not only test different tubular poles, thus than
The influence of grouting parameters different compared with analysis, different cement slurry thickness to shear performance, moreover it is possible to by the way that the tubular pole of different lines is arranged,
Analyze influence of the pile-soil interface to shear performance of different degree of roughness.It is reasonable to test process engineering, tubular pole reality can be simulated
Bearing characters when work guarantee that measurement data is rationally accurate, provide reliable basis for Practical Project and scientific research.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, therefore
Without departing from the technical solutions of the present invention, according to the technical essence of the invention it is to the above embodiments it is any modification,
Equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. the experimental rig of a kind of test pile and slip casting soil body contact surface failure mechanism, including loading device and tubular pole model test
Case；The loading device includes reaction frame, is arranged on the reaction frame to the load machine of tubular pole model test box offer pressure
Structure；The tubular pole model test box being mounted on the reaction frame, it is characterised in that:
The inside top of the reaction frame is arranged in the loading mechanism；The tubular pole model test box is removably disposed in institute
State the inside of reaction frame；The loading mechanism is located at the top of the tubular pole model installation position of the tubular pole model test box；It is described
The inside top of reaction frame is equipped with the displacement detector of the longitudinal movement position for detecting the tubular pole model.
2. the experimental rig of test pile according to claim 1 and slip casting soil body contact surface failure mechanism, it is characterised in that:
The reaction frame includes upper frame and lower frame；The side wall of the upper frame and the side wall of the lower frame are all equipped with several installations
Through-hole, the upper frame and the lower frame are mounted on the installation through-hole and nut locking by bolt and are detachably connected
It connects.
3. the experimental rig of test pile and slip casting soil body contact surface failure mechanism according to claim 1, it is characterised in that: on described
Frame includes at least two bodies of rod disposed in parallel in " recessed "；Two adjacent bodies of rod are by connecting rod across the two
Form be attached.
4. the experimental rig of test pile according to claim 3 and slip casting soil body contact surface failure mechanism, it is characterised in that:
A connecting rod is provided in the middle part of the body of rod disposed in parallel；One fixed plate is removably mounted on the top of the upper frame
The middle part of inside；Loading mechanism is fixedly installed in the fixed plate.
5. the experimental rig of test pile according to claim 1 and slip casting soil body contact surface failure mechanism, it is characterised in that: described
The side wall of the bottom plate of reaction frame is equipped at least two installation recess, and the bottom of the tubular pole model test box is equipped with cushion block；Institute
State tubular pole model test box by cushion block be mounted on installation recess be mounted in reaction frame.
6. the experimental rig of test pile according to claim 3 and slip casting soil body contact surface failure mechanism, it is characterised in that:
The connecting rod is detachably connected by high-strength bolt component.
7. the experimental rig of test pile according to claim 1 and slip casting soil body contact surface failure mechanism, it is characterised in that:
Bottom plate institute's displacement sensing device is displacement meter, and the loading mechanism is ultrathin jack.
8. the experimental rig of test pile according to claim 1 and slip casting soil body contact surface failure mechanism, it is characterised in that:
The tubular pole test model case includes cabinet, and the preceding tank wall of the cabinet includes at least two pieces of detachable plate bodys.
9. a kind of test tubular pole and the slip casting soil body carried out using experimental rig described in claim 1 to 8 any claim
The test test method of contact surface failure mechanism, it is characterised in that the following steps are included:
Composition model chamber, and be mounted on lower frame；
It the height of frame and is fixed with lower frame according to the situation of burying of the tubular pole to be tested, in adjusting；
Bottom in model test box is laid with pan soil, and the thickness of pan soil is in 15cm~30cm；
Pressure cell is set in tubular pole bottom, tubular pole is placed on pan soil and corresponds to the middle position of upper frame；
It is arranged pvc pipe corresponding with tubular pole outside tubular pole, remains for cement injection in advance between pvc pipe inner surface and tubular pole outer surface
The gap of slurry；Several strain rosettes being arranged symmetrically are posted in the outer surface of the tubular pole, are provided with displacement sensor at the top of tubular pole；
Fill cabinet with the test soil body: the test soil of every filling 30cm height is just once compacted, until burying the outer of pvc pipe
The strain rosette of surface top layer.
It after testing soil compaction, tightens pvc pipe and extracts, form the outer surface for testing the soil body identical with pvc pipe ripple
Lines；
The grout injection between tubular pole and the soil body；
Ring steel plate is inserted in Model Pile after theing cement solidifies, it is ensured that its internal diameter is tangent with the cement plane of cement slurry and the soil body；
Loading device applies vertical pressure to tubular pole from top；Record the strain rosette, displacement sensor, pressure gauge, pressure cell
The data monitored.
10. the test method of shear deformation breaks down feature between tubular pole and the slip casting soil body is observed according to claim 9, it is special
Sign is: after the setting time that cement was stood more than 28 days, ring steel plate being inserted in Model Pile.
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| CN109655382A (en) * | 2019-01-23 | 2019-04-19 | 石家庄铁道大学 | A kind of grouting model test cabinet and test method |
| CN110144981A (en) * | 2019-05-29 | 2019-08-20 | 东北大学 | A new type of indoor test pile arrangement device |
| CN110565707A (en) * | 2019-10-07 | 2019-12-13 | 吉林大学 | foundation pit pile-anchor supporting system physical simulation device and method based on similar theory |
| CN110823717A (en) * | 2019-11-01 | 2020-02-21 | 广州大学 | Semi-flexible pavement shear strength testing device and testing method |
| CN110847258A (en) * | 2019-12-16 | 2020-02-28 | 广州市建筑科学研究院有限公司 | Interface shear test system capable of realizing pile side grouting |
| CN111443088A (en) * | 2020-04-16 | 2020-07-24 | 长沙理工大学 | A test device for observing microbial solidification and vegetation growth and using method thereof |
| CN111521533A (en) * | 2020-01-19 | 2020-08-11 | 广州市建筑科学研究院有限公司 | Device and method for researching flow rule of pile side grouting liquid of pipe-following pile while drilling |
| CN114354389A (en) * | 2022-01-10 | 2022-04-15 | 广州建筑股份有限公司 | Side limiting device and method for shear test of contact surface of tubular pile and filler core |
| CN117388081A (en) * | 2023-12-12 | 2024-01-12 | 西南交通大学 | A test device and test method for determining the bearing capacity of tunnel anchors by push-back loading |
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| CN114354389A (en) * | 2022-01-10 | 2022-04-15 | 广州建筑股份有限公司 | Side limiting device and method for shear test of contact surface of tubular pile and filler core |
| CN117388081A (en) * | 2023-12-12 | 2024-01-12 | 西南交通大学 | A test device and test method for determining the bearing capacity of tunnel anchors by push-back loading |
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