CN109403392A - It is a kind of for calculating the system and method for soil body horizontal counter-force coefficient - Google Patents
It is a kind of for calculating the system and method for soil body horizontal counter-force coefficient Download PDFInfo
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- CN109403392A CN109403392A CN201811004296.9A CN201811004296A CN109403392A CN 109403392 A CN109403392 A CN 109403392A CN 201811004296 A CN201811004296 A CN 201811004296A CN 109403392 A CN109403392 A CN 109403392A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Soil Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Force Measurement Appropriate To Specific Purposes (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 invention discloses a kind of for calculating the system and method for soil body horizontal counter-force coefficient, it include: wherein an at least test pile for calculating the system of soil body horizontal counter-force coefficient, pile compacting equipment, horizontal loading application devices, and digital treating meter, strain gauge and displacement sensor are provided at different height inside test pile, for measuring axial strain value and shift value inside test pile at differently strained height, digital treating meter is communicated to connect with displacement sensor and strain gauge respectively, digital treating meter is suitable for obtaining data measured by displacement sensor and strain gauge and calculates the relationship between the horizontal reacting force and land movement of different depth soil layer.The configuration of the present invention is simple, cost is relatively low, by it is a kind of it is cost-effective in a manner of realize the soil body horizontal counter-force coefficient that accurately measuring and calculating obtains can be applied to actual engineering design.
Description
Technical field
The present invention relates to geotechnical engineering investigation technical fields, are in more detail related to a kind of for calculating soil body horizontal counter-force
The system and method for coefficient.
Background technique
Soil body horizontal counter-force coefficient be reflect in geotechnical engineering the effect of soil body horizontal suffered by the Deep Foundation Structures such as foundation pile with
The design parameter of relationship between deformation, reflects the relationship between the horizontal reacting force and land movement of different depth soil layer, is ground
An important parameter in prospective design, is directly related to the design of the foundation structure by horizontal force.
But there is also some defects for the method for existing measuring and calculating soil body horizontal counter-force coefficient.In the prior art, native
Body horizontal reacting force coefficient generally carries out value by horizontal loading test and both modes of reference locality experience.Horizontal loading examination
The period tested is longer, expense is also higher.Although and the lateral loading test in conventional investigation way, Flat Dilatometer Test can be certain
The horizontal stress strain stress relation of the soil body is reacted in degree, but the test data of these tests is all the deformation condition in shallow foundation
Under measure, there is the differences of magnitude the horizontal displacement with deep foundation, therefore the parameter that these tests obtain can not be direct
Instruct actual engineering design.
On the other hand, in actual engineering design, the engineering more urgent for the duration either temporary work, one
As using standardize guidance in the range of according to regional experience to soil body horizontal counter-force coefficient carry out value.But specification guidance
Range is usually wider, and capping value and lower limit value are often led respectively as guidance to carry out value to soil body horizontal counter-force coefficient
Entirely different design is caused to calculate structure.Instruct the uncertain of index, it will usually higher risk or excessive cost be brought to throw
Enter.
Therefore, accurate measuring and calculating, which obtains, can instruct the soil body horizontal counter-force coefficient of actual engineering design to have in geotechnical engineering
There is important research significance.
Summary of the invention
The purpose of the present invention is to provide a kind of for calculating the system and method for soil body horizontal counter-force coefficient, structure letter
Single, cost is relatively low, by it is a kind of it is cost-effective in a manner of realize accurately measuring and calculating and obtain can be applied to actual engineering design
Soil body horizontal counter-force coefficient.
One aspect under this invention, the present invention provide a kind of for calculating the system of soil body horizontal counter-force coefficient, packet
It includes:
An at least test pile is provided with strain gauge and displacement sensor at the different height inside the test pile, uses
In measuring axial strain value and shift value inside the test pile at differently strained height；
Pile compacting equipment, the pile compacting equipment are used for designated position and depth by the test pile injection into the test soil body
Degree；
Horizontal loading application devices, the horizontal loading application devices are used to apply level side to the stake top of the test pile
Upward default load；And
Digital treating meter, the digital treating meter are communicated to connect with institute's displacement sensors and the strain gauge respectively, institute
Digital treating meter is stated to be suitable for obtaining data measured by institute's displacement sensors and the strain gauge and calculate different depth soil
Relationship between the horizontal reacting force and land movement of layer.
Preferably, the pile compacting equipment is static pile press, and the horizontal loading application devices are level jack.
Preferably, two strain gauges and a displacement sensing are respectively provided at each preset height inside the test pile
Device.
The length of preferred embodiment in accordance with the present invention, the different test piles is different, by the pile compacting equipment injection
Stake top holding flushes after to the test soil body.
Preferably, the material of body of a pile of the test pile be very-high performance armored concrete, ultra-high performance concrete (UHPC),
And one of steel construction or combination.
Preferably, the test pile uses rectangular section symmetric reinforcement, to reinforce integral strength.
Preferably, the stake top position of the test pile is handled using steel plate packet header, to protect the stake top position of the test pile
It sets and is not easy to be destroyed due to by penetrating power with default load in horizontal direction；The pile crown tip position of the test pile is same
It is handled using steel plate packet header, in favor of the test pile penetration test soil body.
Other side under this invention, the present invention further provides it is a kind of calculate soil body horizontal counter-force coefficient method,
Itself the following steps are included:
(S1) position specified test pile injection into the test soil body and depth；
(S2) apply the default load F in horizontal direction to the stake top position of the test pile；
(S3) test pile depth z in the case where testing soil body horizontal surface is measured by strain gaugeiThe axial strain value at place
εi, to the test pile in the case where testing soil body horizontal surface depth ziPlace answers variable cross-section to establish moment of flexure equilibrium equation, and combines curved
Square calculation formula calculates test soil body surface and depth ziBetween the soil body horizontal counter-force p that is distributedi(z),
Wherein, the moment of flexure equilibrium equation are as follows:
Calculation of Bending Moment formula are as follows:
Wherein, the depth tested at soil body horizontal surface is set as 0, MiFor depth ziPlace, which is answered, to be subject at And of Varying Depth section
Moment of flexure, piIt (z) is test soil body horizontal surface and depth ziBetween the soil body horizontal counter-force that is distributed, ziIt should be got higher for different
Depth of the section in the case where testing soil body horizontal surface is spent, 2h and b are respectively the length and width that the test pile rectangle answers variable cross-section, F
For the default load in horizontal direction, z0It is higher than the length on test soil body horizontal surface for the test pile, z is test soil mass water
Depth value under flat surface, E are the test pile Young's module of pile, h0It is the strain gauge in the test pile
The length of axis, εiThe depth z measured for the strain gaugeiThe axial strain value at place can obtain test soil body table by (1) (2) formula
Face and depth ziBetween the soil body horizontal counter-force p that is distributedi(z)；
(S4) depth z is measured by displacement sensoriLocate corresponding shift value；
(S5) change depth ziSize, repeat step (S3) to (S4), obtain the horizontal reacting force of different depth soil layer with
Relationship between land movement.
Preferably, in order to improve estimation precision, the method for the measuring and calculating soil body horizontal counter-force coefficient further comprises step:
(S6) change the size of the default load F, repeat the above steps (S3) to (S5), multiple groups experimental data is measured,
The relationship between horizontal reacting force and land movement to establish multiple groups different depth soil layer.
Preferably, in order to improve estimation precision, in the step (S1), the test pile of different length can be passed through into pressure
Stake equipment injection is into the test soil body and stake top is kept to flush, while sharing a horizontal loading application devices to more test piles
Apply the default load in horizontal direction, on the one hand can measure multiple groups calculation of measured data for checking mutually, another aspect can also
To play the effect of fixed horizontal loading application devices.
Preferably, in the step (S1), the test pile is by static pile press by static pressure injection to the test soil body
In；In the step (S2), applied using stake top position of the level jack to the test pile default in horizontal direction
Load.
Preferred embodiment in accordance with the present invention is respectively provided with described in two at each preset height inside the test pile
Strain gauge and at least one institute's displacement sensors are used to measure the axial strain value in the test pile at differently strained height
And shift value.
The above and other purposes of the present invention, feature, advantage will in the following detailed description, attached drawing and appended
Claim further clarify.
Detailed description of the invention
Fig. 1 is the configuration signal of the system for calculating soil body horizontal counter-force coefficient of preferred embodiment in accordance with the present invention
Figure；
Fig. 2 is the test pile of preferred embodiment in accordance with the present invention by the displacement after the default load in horizontal direction
Schematic diagram；
Fig. 3 is the test pile of preferred embodiment in accordance with the present invention by the stress after the default load in horizontal direction
Schematic diagram is analyzed, which show ziThe stress condition of depth；
Fig. 4 is the z of the test pile of preferred embodiment in accordance with the present inventioniDepth answers the schematic diagram of variable cross-section；
Fig. 5 is the flow diagram of the method for the measuring and calculating soil body horizontal counter-force coefficient of preferred embodiment in accordance with the present invention；
In figure: test pile 10；Stake top 11；Pile crown 12；Horizontal loading bringing device 20；Digital treating meter 30；Strain gauge 40；
Displacement sensor 50；Test soil body horizontal surface 60.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to invention, it should be noted that in not phase
Under the premise of conflict, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It will be understood by those skilled in the art that in exposure of the invention, term " longitudinal direction ", " transverse direction ", "upper",
The orientation or position of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside"
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore above-mentioned
Term is not considered as limiting the invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no
It can be interpreted as the limitation to quantity.
Referring to the Fig. 1 to Fig. 4 of attached drawing, preferred embodiment in accordance with the present invention is used to calculate soil body horizontal counter-force coefficient
System will be elucidated in following description, and structure is simple, and cost is relatively low, by it is a kind of it is cost-effective in a manner of realize standard
Really calculate to obtain the soil body horizontal counter-force coefficient that can be applied to actual engineering design.
As shown in Fig. 1, the system for calculating soil body horizontal counter-force coefficient includes at least a test pile 10, piling
Equipment (not shown), horizontal loading application devices 20 and digital treating meter 30, wherein inside the test pile 10 not
With strain gauge 40 and displacement sensor 50 is provided at height, for measuring at the 10 differently strained height in inside of test pile
Axial strain value and shift value.
The pile compacting equipment is used for designated position and depth by 10 injection of test pile into the test soil body, the water
Flat load application devices 20 are used to apply 11 position of stake top of the test pile 10 the default load in horizontal direction.
Preferably, in the present embodiment, the pile compacting equipment is static pile press, and the horizontal loading application devices 20 are
Level jack.
The digital treating meter 30 is communicated to connect with institute displacement sensors 50 and the strain gauge 40 respectively, the data
The institute's displacement sensors 50 and the strain gauge 40 that processing instrument 30 is suitable for obtaining in the test pile 10 at different height are surveyed
Data and calculate the relationship between the horizontal reacting force and land movement of different depth soil layer.
Preferably, the test pile 10 is made of very-high performance Reinforced Concrete Materials, using rectangular section symmetric reinforcement
Design, to reinforce integral strength, avoiding the test pile 10 from deforming in loading process influences the accuracy of results of measuring.
It will be readily appreciated by those skilled in the art that the material of body of a pile of the test pile 10 is unrestricted in the present embodiment, at other
In possible preferred embodiment, the test pile 10 also be can be, but not limited to by ultra-high performance concrete (UHPC), steel construction
Etc. being made.
Preferably, 11 position of stake top of the test pile 10 is handled using steel plate packet header, to protect the test pile 10
11 position of stake top is not easy to be destroyed due to by penetrating power with default load in horizontal direction, the pile crown 12 of the test pile 10
Tip position equally uses steel plate packet header to handle, in favor of the 10 penetration test soil body of test pile.
In order to improve estimation precision, it is preferable that be provided with two at each preset height inside the test pile 10
A strain gauge 40 and a displacement sensor 50.
Specifically, water is applied by stake top 11 position of the horizontal loading application devices 20 to the test pile 10
Square upward default load F.As shown in attached drawing 2 to attached drawing 4, the test pile 10 can be under the action of load force in test soil
It is subjected to displacement in body.Then, the test pile 10 is measured by the way that the strain gauge 40 inside the test pile 10 is arranged in exist
Test the lower depth z in soil body horizontal surface 60iThe axial strain value ε at placei, to the test pile 10 on test soil body horizontal surface 60
Lower depth ziThe variable cross-section of answering at place establishes moment of flexure equilibrium equation, and in conjunction with calculation of Bending Moment formula calculate test soil body surface 60 with
Depth ziBetween the soil body horizontal counter-force p that is distributedi(z)。
Wherein, the moment of flexure equilibrium equation are as follows:
Calculation of Bending Moment formula are as follows:
Wherein, the depth tested at soil body horizontal surface 60 is set as 0, MiFor depth ziPlace answer at And of Varying Depth section by
Moment of flexure, piIt (z) is test soil body horizontal surface 60 and depth ziBetween the soil body horizontal counter-force that is distributed, ziIt is answered for different
Depth of the And of Varying Depth section in the case where testing soil body horizontal surface 60,2h and b are respectively the length that the test pile rectangle answers variable cross-section
And width, F are the default load in horizontal direction, z0It is higher than the length on test soil body horizontal surface 60 for the test pile 10, z is
The depth value under soil body horizontal surface 60 is tested, E is 10 Young's module of pile of test pile, h0For the strain gauge 40
Length apart from 10 central axes of test pile, εiThe axial strain at differently strained height measured for the strain gauge 40
Value can obtain test soil body surface 60 and depth z by (1) (2) formulaiBetween the soil body horizontal counter-force p that is distributedi(z)；
Then, depth z is measured by the way that institute's displacement sensors 50 inside the test pile 10 are arranged iniLocate corresponding position
Shifting value, finally, changing depth ziSize, repeat aforesaid operations, obtain horizontal reacting force and the land movement of different depth soil layer
Between relationship.
In the preferred embodiment, the experiment stake 10 is square pile, and section is rectangle, therefore 2h and b is respectively described
The length and width of 10 rectangular section of test pile.But the it will be readily appreciated by those skilled in the art that section shape of the test pile 10
Shape is unrestricted in the present invention, in other possible preferred embodiments, the cross sectional shape of the test pile 10 can with but
Be not limited to circle, triangle, ellipse etc., other cross sectional shapes be equally applicable to disclosed herein measuring and calculating soil mass water
It redresses the method for force coefficient.
It, can be default in horizontal direction by changing in order to improve estimation precision by obtaining different calculation of measured data
Load F measures multiple groups experimental data, to establish the pass between the horizontal reacting force and land movement of multiple groups different depth soil layer
System.
Furthermore it is possible into the test soil body and keep stake top neat by pile compacting equipment injection the test pile 10 of different length
It is flat, while sharing the horizontal loading application devices 20 and more test piles are applied with default load in horizontal directions, one
Aspect can measure multiple groups calculation of measured data for checking mutually, on the other hand can also play fixed horizontal loading application devices
Effect.
As shown in Fig. 5, the present invention further provides a kind of methods for calculating soil body horizontal counter-force coefficient comprising following
Step:
(S1) position specified test pile injection into the test soil body and depth；
(S2) apply the default load F in horizontal direction to the stake top position of the test pile；
(S3) test pile depth z in the case where testing soil body horizontal surface is measured by strain gaugeiThe axial strain value at place
εi, to the test pile in the case where testing soil body horizontal surface depth ziPlace answers variable cross-section to establish moment of flexure equilibrium equation, and combines curved
Square calculation formula calculates test soil body surface and depth ziBetween the soil body horizontal counter-force p that is distributedi(z),
Wherein, the moment of flexure equilibrium equation are as follows:
Calculation of Bending Moment formula are as follows:
Wherein, the depth tested at soil body horizontal surface is set as 0, MiFor depth ziPlace, which is answered, to be subject at And of Varying Depth section
Moment of flexure, piIt (z) is test soil body horizontal surface and depth ziBetween the soil body horizontal counter-force that is distributed, ziIt should be got higher for different
Depth of the section in the case where testing soil body horizontal surface is spent, 2h and b are respectively the length and width that the test pile rectangle answers variable cross-section, F
For the default load in horizontal direction, z0It is higher than the length on test soil body horizontal surface for the test pile, z is test soil mass water
Depth value under flat surface, E are the test pile Young's module of pile, h0It is the strain gauge in the test pile
The length of axis, εiThe depth z measured for the strain gaugeiThe axial strain value at place can obtain test soil body table by (1) (2) formula
Face and depth ziBetween the soil body horizontal counter-force p that is distributedi(z)；
(S4) depth z is measured by displacement sensoriLocate corresponding shift value；
(S5) change depth ziSize, repeat step (S3) to (S4), obtain the horizontal reacting force of different depth soil layer with
Relationship between land movement.
Preferably, in order to improve estimation precision, the method for the measuring and calculating soil body horizontal counter-force coefficient further comprises step:
(S6) change the size of the default load F, repeat the above steps (S3) to (S5), multiple groups experimental data is measured,
The relationship between horizontal reacting force and land movement to establish multiple groups different depth soil layer.
In the preferred embodiment, the experiment stake is square pile, and section is rectangle, therefore 2h and b are respectively the examination
Test the length and width of a rectangular section.But it will be readily appreciated by those skilled in the art that the cross sectional shape of the test pile is at this
It is unrestricted in invention, in other possible preferred embodiments, the cross sectional shape of the test pile can be, but not limited to for
Circle, triangle, ellipse etc., other cross sectional shapes be equally applicable to disclosed herein measuring and calculating soil body horizontal counter-force system
Several methods.
Preferably, in order to improve estimation precision, in the step (S1), the test pile of different length can be passed through into pressure
Stake equipment injection is into the test soil body and stake top is kept to flush, while sharing a horizontal loading application devices to more test piles
Apply the default load in horizontal direction, on the one hand can measure multiple groups calculation of measured data for checking mutually, another aspect can also
To play the effect of fixed horizontal loading application devices.
Preferably, in the step (S1), the test pile is by static pile press by static pressure injection to the test soil body
In；In the step (S2), applied using stake top position of the level jack to the test pile default in horizontal direction
Load.
Preferably, two strain gauges and at least one are respectively provided at each preset height inside the test pile
Institute's displacement sensors are used to measure axial strain value and the shift value in the test pile at differently strained height.
It should be understood by those skilled in the art that foregoing description and the embodiment of the present invention shown in the drawings are only used as illustrating
And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.Function and structural principle of the invention exists
It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (8)
1. a kind of for calculating the system of soil body horizontal counter-force coefficient characterized by comprising
An at least test pile is provided with strain gauge and displacement sensor at the different height inside the test pile, for surveying
Take the axial strain value and shift value inside the test pile at differently strained height；
Pile compacting equipment, for the test pile injection extremely to be tested to designated position and depth in the soil body；
Horizontal loading application devices apply the default load in horizontal direction for the stake top to the test pile；And
Digital treating meter, the digital treating meter are communicated to connect with institute's displacement sensors and the strain gauge respectively, the number
It is suitable for obtaining data measured by institute's displacement sensors and the strain gauge according to processing instrument and calculates different depth soil layer
Relationship between horizontal reacting force and land movement.
2. the system for being used to calculate soil body horizontal counter-force coefficient as described in claim 1, which is characterized in that the pile compacting equipment
For static pile press, the horizontal loading application devices are level jack.
3. the system for being used to calculate soil body horizontal counter-force coefficient as described in claim 1, which is characterized in that in the test pile
Two strain gauges and a displacement sensor are respectively provided at internal each preset height.
4. the system for being used to calculate soil body horizontal counter-force coefficient as described in claim 1, which is characterized in that the test pile
Material of body of a pile is one of very-high performance armored concrete, ultra-high performance concrete (UHPC) and steel construction or combination, is adopted
With rectangular section symmetric reinforcement, stake top position and pile crown tip position are handled using steel plate packet header.
5. a kind of method for calculating soil body horizontal counter-force coefficient, which comprises the following steps:
(S1) position specified test pile injection into the test soil body and depth；
(S2) apply the default load F in horizontal direction to the stake top position of the test pile；
(S3) test pile depth z in the case where testing soil body horizontal surface is measured by strain gaugeiThe axial strain value ε at placei, right
Test pile depth z in the case where testing soil body horizontal surfaceiPlace answers variable cross-section to establish moment of flexure equilibrium equation, and combines moment of flexure meter
It calculates formula and calculates test soil body surface and depth ziBetween the soil body horizontal counter-force p that is distributedi(z),
Wherein, the moment of flexure equilibrium equation are as follows:
Calculation of Bending Moment formula are as follows:
Wherein, the depth tested at soil body horizontal surface is set as 0, MiFor depth ziThe moment of flexure being subject at And of Varying Depth section is answered at place,
piIt (z) is test soil body horizontal surface and depth ziBetween the soil body horizontal counter-force that is distributed, ziAnd of Varying Depth section is answered for different
Depth in the case where testing soil body horizontal surface, 2h and b are respectively the length and width that the test pile rectangle answers variable cross-section, and F is level
Default load on direction, z0It is higher than the length on test soil body horizontal surface for the test pile, z is test soil body horizontal surface
Under depth value, E be the test pile Young's module of pile, h0It is the strain gauge apart from the test pile central axes
Length, εiThe depth z measured for the strain gaugeiThe axial strain value at place can obtain test soil body surface and depth by (1) (2) formula
Spend ziBetween the soil body horizontal counter-force p that is distributedi(z)；
(S4) depth z is measured by displacement sensoriLocate corresponding shift value；
(S5) change depth ziSize, repeat step (S3) to (S4), obtain different depth soil layer horizontal reacting force and soil body position
Relationship between shifting.
6. the method for measuring and calculating soil body horizontal counter-force coefficient as claimed in claim 5, which is characterized in that further comprise step:
(S6) change the size of the default load F, repeat the above steps (S3) to (S5), establishes multiple groups different depth soil layer
Relationship between horizontal reacting force and land movement.
7. the method for measuring and calculating soil body horizontal counter-force coefficient as claimed in claim 5, which is characterized in that at the step (S1)
In, by static pile press by the test pile static pressure injection to test the soil body in；In the step (S2), level thousand is utilized
Jin top applies the default load in horizontal direction to the stake top position of the test pile.
8. the method for measuring and calculating soil body horizontal counter-force coefficient as claimed in claim 5, which is characterized in that inside the test pile
Each preset height at be respectively provided with two strain gauges and at least one institute's displacement sensors for measuring the test
Axial strain value and shift value in stake at differently strained height.
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| CN201811004296.9A CN109403392B (en) | 2018-08-30 | 2018-08-30 | System and method for measuring and calculating horizontal counter force coefficient of soil body |
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| CN201811004296.9A CN109403392B (en) | 2018-08-30 | 2018-08-30 | System and method for measuring and calculating horizontal counter force coefficient of soil body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640877A (en) * | 2021-08-11 | 2021-11-12 | 中国铁路设计集团有限公司 | Method and system for calculating proportional coefficient of soil horizontal reaction coefficient |
| WO2022025756A1 (en) * | 2020-07-30 | 2022-02-03 | Ihc Holland Ie B.V. | Testing system |
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| 张开伟等: ""单桩水平静载试验各项测试参数分析"", 《城市勘测》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022025756A1 (en) * | 2020-07-30 | 2022-02-03 | Ihc Holland Ie B.V. | Testing system |
| NL2026169B1 (en) * | 2020-07-30 | 2022-04-04 | Ihc Holland Ie Bv | Testing system |
| CN113640877A (en) * | 2021-08-11 | 2021-11-12 | 中国铁路设计集团有限公司 | Method and system for calculating proportional coefficient of soil horizontal reaction coefficient |
| CN113640877B (en) * | 2021-08-11 | 2023-04-07 | 中国铁路设计集团有限公司 | Method and system for calculating proportionality coefficient of soil horizontal reaction coefficient |
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| CN109403392B (en) | 2021-04-20 |
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