CN110528602A - Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition - Google Patents
Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition Download PDFInfo
- Publication number
- CN110528602A CN110528602A CN201910803593.8A CN201910803593A CN110528602A CN 110528602 A CN110528602 A CN 110528602A CN 201910803593 A CN201910803593 A CN 201910803593A CN 110528602 A CN110528602 A CN 110528602A
- Authority
- CN
- China
- Prior art keywords
- model casing
- wall
- underground continuous
- operating condition
- lateral pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses earth lateral pressure experiment simulators under a kind of diaphram wall difference level of ground water operating condition, after-pouring concrete is filled between two pieces of prefabricated diaphragm walls in underground, it is provided with several pressure cells and several strain gauges on the outer wall of coercion underground continuous wall, is provided at the top of coercion underground continuous wall for the jack being further applied load at the top of coercion underground continuous wall；Gap between water system and interior model casing and external mold molding box is connected, and the bottom of interior model casing starts hole, which can simulate the test of the lateral pressure under coercion underground continuous wall difference level of ground water operating condition.
Description
Technical field
The invention belongs to construction of diaphragm wall field of engineering technology, are related to a kind of diaphram wall difference level of ground water work
Earth lateral pressure experiment simulator under condition.
Background technique
Diaphram wall because have many advantages, such as antiseepage, leakproof, deformation it is small due to be widely used in all kinds of pattern foundation pit supporting structures.Due to
Its project cost is higher, and the mechanical property of early period calculates and structure design is particularly important.Diaphram wall generallys use engineering warp
Analogy method is tested, is constructed according to the construction experience of similar engineering, there is very big uncertainty.Construction site has scene to test pits
Submerging test, but need to carry out at the scene, experimental condition prepares cumbersome.Laboratory test for diaphram wall is generally only research
Its supporting effect after molding, it is also less for the simulation of level of ground water.Therefore it provides a kind of be used for diaphram wall differently
Earth lateral pressure test method and its simulator under lower water level operating condition, to study the soil in the case of ground-connecting-wall difference level of ground water
The variations such as body level of disruption and the soil body and ground-connecting-wall contact surface side frictional resistance, just for instructing setting for diaphram wall
Meter, construction are very necessary.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of diaphram wall difference underground water is provided
Earth lateral pressure experiment simulator under the operating condition of position, the device can simulate the side under diaphram wall difference level of ground water operating condition
Pressure testing.
In order to achieve the above objectives, earth lateral pressure is tested under diaphram wall difference level of ground water operating condition of the present invention
Simulator includes interior model casing, pedestal, external mold molding box, water system and two pieces of coercion underground continuous walls；
For interior model casing by base supports in external mold molding box, there is gap between interior model casing and external mold molding box, two pieces pre-
Diaphram wall processed is respectively positioned in interior model casing, and inner wall of the side of two pieces of coercion underground continuous walls with interior model casing is affixed
Tightly, it is in contact between the other side of two pieces of coercion underground continuous walls with the soil body；
After-pouring concrete is filled between two pieces of coercion underground continuous walls, if being provided on the outer wall of coercion underground continuous wall
Dry pressure cell and several strain gauges are provided at the top of coercion underground continuous wall and apply for the top to coercion underground continuous wall
The jack of load；
Gap between water system and interior model casing and external mold molding box is connected, and the bottom of interior model casing begins with hole
Hole.
Interior model casing and external mold molding box are open-topped square cabinet, and the material of interior model casing and external mold molding box
It is transparent toughened glass.
Water system includes water tank and force (forcing) pump, wherein the pressurized pump of the water outlet of water tank and interior model casing and external model
Gap between case is connected.
It further include reaction frame, the bottom of jack is located on the reaction frame, and the output shaft of jack pours mixed described in
Coagulate the top of soil.
Each pressure cell in column arrangement, each pressure cell be distributed in coercion underground continuous wall outer wall and rear pouring concrete it is outer
Wall.
The soil body is made of soil layer, geotextile layer and the sandy gravel stratum being sequentially distributed from top to bottom, wherein soil layer can
Analog configuration is carried out according to the geologic prospect data report that Practical Project provides.
The level scale line for showing water level between external mold molding box and interior model casing is provided on the outer wall of external mold molding box.
The invention has the following advantages:
Earth lateral pressure experiment simulator is specific under diaphram wall difference level of ground water operating condition of the present invention
When operation, by jack to being further applied load at the top of coercion underground continuous wall, to simulate different upper loads；By for water system
It unites and is filled the water between inside model casing and external mold molding box, to simulate different level of ground water operating conditions, while passing through pressure cell and strain gauge
Stress and the deformation for detecting coercion underground continuous wall outer wall, are simulated under coercion underground continuous wall difference level of ground water operating condition with realizing
Lateral pressure test, soil disturbance and the soil body and ground-connecting-wall contact surface side in the case of research and probe ground-connecting-wall difference level of ground water
The variations such as frictional resistance, structure is simple, cheap, and test process is intuitive, and test speed is fast, and as a result accurately, the present invention can
It tests in the case of different levels of ground water, the force-bearing situation of underground structure, applied widely in the case of different soil properties, using flexible.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 be jack, 2 be reaction frame, 3 be pressure cell, 4 be interior model casing, 5 be external mold molding box, 6 be water level carve
Degree line, 7 be force (forcing) pump, 8 be water tank, 9 be sandy gravel stratum, 10 be geotextiles, 11 be soil layer.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, earth lateral pressure test simulation is filled under diaphram wall difference level of ground water operating condition of the present invention
It sets including interior model casing 4, pedestal, external mold molding box 5, water system and two pieces of coercion underground continuous walls；Interior model casing 4 passes through pedestal
It is supported in external mold molding box 5, there is gap between interior model casing 4 and external mold molding box 5, two pieces of coercion underground continuous walls are respectively positioned on internal model
In molding box 4, inner wall of the side of two pieces of coercion underground continuous walls with interior model casing 4 is mutually adjacent to, two pieces of coercion underground continuous walls
The other side between be in contact with the soil body, after-pouring concrete is filled between two pieces of coercion underground continuous walls, prefabricated underground is continuous
It is provided with several pressure cells 3 and several strain gauges on the outer wall of wall, is provided at the top of coercion underground continuous wall for prefabricated
The jack 1 being further applied load at the top of diaphram wall；Gap phase between water system and interior model casing 4 and external mold molding box 5
Connection, the bottom of interior model casing 4 starts hole.
Specifically, interior model casing 4 and external mold molding box 5 are open-topped square cabinet, and interior model casing 4 and external mold
The material of molding box 5 is transparent toughened glass；Each pressure cell 3 is distributed in coercion underground continuous wall in column arrangement, each pressure cell (3)
Side wall and rear pouring concrete side wall.
Water system includes water tank 8 and force (forcing) pump 7, wherein the pressurized pump 7 of the water outlet of water tank 8 is with interior model casing 4 and outside
Gap between model casing 5 is connected；The soil body is by the soil layer 11, geotextile layer 10 and the gravel that are sequentially distributed from top to bottom
Layer 9 forms.
The invention also includes reaction frame 2, the bottom of jack 1 is located on the reaction frame 2, the output axle position of jack 1
In on the top of coercion underground continuous wall；It is provided on the outer wall of external mold molding box 5 for showing external mold molding box 5 and interior model casing 4
Between water level level scale line 6.
Specific operation process of the invention are as follows:
Two pieces of prefabricated coercion underground continuous walls are put into band simulation soil property model casing, and rear pouring concrete, according to mould
Quasi- level of ground water, by being filled the water between the outside model casing 5 of water system and interior model casing 4, so that interior model casing 4 and external mold molding box
Water level between 5 is identical as to simulated groundwater position, according to load requirement, by jack 1 to coercion underground continuous wall body
Top is further applied load, and observes and records the compression that pressure cell 3 measures coercion underground continuous wall outer wall, prefabricated by strain gauge detection
The deflection of diaphram wall outer wall, to realize, earth lateral pressure tests mould under coercion underground continuous wall difference level of ground water operating condition
It is quasi-.
Claims (7)
1. earth lateral pressure experiment simulator under a kind of diaphram wall difference level of ground water operating condition, which is characterized in that including
Interior model casing (4), pedestal, external mold molding box (5), water system and two pieces of coercion underground continuous walls；
Interior model casing (4) in external mold molding box (5), is had time by base supports between interior model casing (4) and external mold molding box (5)
Gap, two pieces of coercion underground continuous walls are respectively positioned in interior model casing (4), the side of two pieces of coercion underground continuous walls with interior model casing
(4) inner wall is mutually adjacent to, and is in contact between the other side of two pieces of coercion underground continuous walls with the soil body；
After-pouring concrete is filled between two pieces of coercion underground continuous walls, if being provided with dry-pressing on the outer wall of coercion underground continuous wall
Power box (3) and several strain gauges are provided at the top of coercion underground continuous wall and apply for the top to coercion underground continuous wall
The jack (1) of load；
Gap between water system and interior model casing (4) and external mold molding box (5) is connected, and the bottom of interior model casing (4) starts
Hole.
2. earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition according to claim 1,
It is characterized in that, interior model casing (4) and external mold molding box (5) are open-topped square cabinet, and interior model casing (4) and outer
The material of model casing (5) is transparent toughened glass.
3. earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition according to claim 1,
It is characterized in that, water system includes water tank (8) and force (forcing) pump (7), wherein the pressurized pump (7) of the water outlet of water tank (8) with it is interior
Gap between model casing (4) and external mold molding box (5) is connected.
4. earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition according to claim 1,
It is characterized in that, further including reaction frame (2), the bottom of jack (1) is located on the reaction frame (2), the output of jack (1)
The top of axle position pouring concrete after described.
5. earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition according to claim 1,
It is characterized in that, each pressure cell (3) in column arrangement, each pressure cell (3) be distributed in coercion underground continuous wall side wall and after pour it is mixed
Coagulate the side wall of soil.
6. earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition according to claim 1,
It is characterized in that, the soil body is by soil layer (11), geotextile layer (10) and sandy gravel stratum (9) group for being sequentially distributed from top to bottom
At, wherein the geologic prospect data report that soil layer can be provided according to Practical Project carries out analog configuration.
7. earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition according to claim 1,
It is characterized in that, being provided on the outer wall of external mold molding box (5) for showing water level between external mold molding box (5) and interior model casing (4)
Level scale line (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803593.8A CN110528602A (en) | 2019-08-28 | 2019-08-28 | Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803593.8A CN110528602A (en) | 2019-08-28 | 2019-08-28 | Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110528602A true CN110528602A (en) | 2019-12-03 |
Family
ID=68664904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910803593.8A Pending CN110528602A (en) | 2019-08-28 | 2019-08-28 | Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110528602A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924945A (en) * | 2021-03-10 | 2021-06-08 | 大连理工大学 | Underground diaphragm wall model test system based on cross-hole radar imaging |
| CN112948943A (en) * | 2021-03-22 | 2021-06-11 | 西南交通大学 | Front and rear processing method of OpenSees software of grid type underground continuous wall foundation |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005922A (en) * | 2000-06-22 | 2002-01-09 | Taisei Corp | Saturated ground forming device |
| KR20100100248A (en) * | 2009-03-05 | 2010-09-15 | 주식회사 한진중공업 | Screw plate loading test device |
| CN103276752A (en) * | 2013-06-20 | 2013-09-04 | 江苏城市职业学院 | Construction method of underground continuous wall expansive concrete joint |
| CN104005363A (en) * | 2014-06-13 | 2014-08-27 | 东南大学 | Three-dimensional underground pressure-bearing water flow-subway tunnel structure interaction simulating device |
| CN104099953A (en) * | 2013-04-08 | 2014-10-15 | 同济大学 | Centrifugal model testing device for simulating pressure water head change and stability of foundation pit |
| CN104343131A (en) * | 2013-07-27 | 2015-02-11 | 廖河山 | Semi-prefabricated semi-cast-in-situ underground continuous wall and construction process |
| CN107012896A (en) * | 2017-03-20 | 2017-08-04 | 山东大学 | A kind of Multifunctional pile base model assay systems and its assembling and test method |
| CN206467695U (en) * | 2017-02-17 | 2017-09-05 | 南京新吉泰岩土工程有限公司 | A kind of joint for sinking type empty stomach diaphram wall |
| CN208136903U (en) * | 2018-05-07 | 2018-11-23 | 河南城建学院 | A kind of precast prestressed formula diaphram wall |
| CN109580368A (en) * | 2018-11-19 | 2019-04-05 | 同济大学 | Excavation Deformation of Deep Foundation Pits character centrifugal model test device in a kind of multilayer artesian water stratified formations |
-
2019
- 2019-08-28 CN CN201910803593.8A patent/CN110528602A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005922A (en) * | 2000-06-22 | 2002-01-09 | Taisei Corp | Saturated ground forming device |
| KR20100100248A (en) * | 2009-03-05 | 2010-09-15 | 주식회사 한진중공업 | Screw plate loading test device |
| CN104099953A (en) * | 2013-04-08 | 2014-10-15 | 同济大学 | Centrifugal model testing device for simulating pressure water head change and stability of foundation pit |
| CN103276752A (en) * | 2013-06-20 | 2013-09-04 | 江苏城市职业学院 | Construction method of underground continuous wall expansive concrete joint |
| CN104343131A (en) * | 2013-07-27 | 2015-02-11 | 廖河山 | Semi-prefabricated semi-cast-in-situ underground continuous wall and construction process |
| CN104005363A (en) * | 2014-06-13 | 2014-08-27 | 东南大学 | Three-dimensional underground pressure-bearing water flow-subway tunnel structure interaction simulating device |
| CN206467695U (en) * | 2017-02-17 | 2017-09-05 | 南京新吉泰岩土工程有限公司 | A kind of joint for sinking type empty stomach diaphram wall |
| CN107012896A (en) * | 2017-03-20 | 2017-08-04 | 山东大学 | A kind of Multifunctional pile base model assay systems and its assembling and test method |
| CN208136903U (en) * | 2018-05-07 | 2018-11-23 | 河南城建学院 | A kind of precast prestressed formula diaphram wall |
| CN109580368A (en) * | 2018-11-19 | 2019-04-05 | 同济大学 | Excavation Deformation of Deep Foundation Pits character centrifugal model test device in a kind of multilayer artesian water stratified formations |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924945A (en) * | 2021-03-10 | 2021-06-08 | 大连理工大学 | Underground diaphragm wall model test system based on cross-hole radar imaging |
| CN112924945B (en) * | 2021-03-10 | 2023-09-22 | 大连理工大学 | Underground continuous wall model test system based on cross-hole radar imaging |
| CN112948943A (en) * | 2021-03-22 | 2021-06-11 | 西南交通大学 | Front and rear processing method of OpenSees software of grid type underground continuous wall foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108872530A (en) | A kind of full-scale model test device for simulating asymmetric small-clear-distance tunnel digging process | |
| CN103884831B (en) | A kind of roadbed side slope and underground works multifunction three-dimensional model test platform | |
| CN102094432B (en) | Model for causing ground setting due to engineering environment effect and test method thereof | |
| CN107012896B (en) | A kind of Multifunctional pile base model assay systems and its assembling and test method | |
| CN107024574B (en) | A kind of soil arching effect simulation test device and test method | |
| CN106284443B (en) | A kind of test method for simulating bottom-grouting-enlarged Zhuan Kang order bearing capacities | |
| CN108061687A (en) | It is a kind of to study the geotechnical engineering analogue test platform for having Latent destruction face | |
| CN104677807B (en) | A kind of large scale soil sample true triaxial seepage characteristic and strength test device | |
| CN106337446B (en) | A kind of pile foundation resistance to plucking laboratory testing rig and its experimental method | |
| CN107894311A (en) | The model test method of earth and rockfill dam eaerthquake damage | |
| CN107727424B (en) | Geomechanical model experimental device and method for stability of bedding rock slope | |
| CN106596268A (en) | Multi-soaking condition simulation test model box and test method thereof | |
| CN211602719U (en) | Stope mine pressure three-dimensional physical simulation test platform of multi-functional top bottom plate gushing water | |
| CN204590104U (en) | A kind of bath scaled model experimental device of simulating self-balance testing pile method | |
| CN104990659B (en) | A kind of swelled ground area slurry balance shield tunnel tunnel face expansive force experimental rig | |
| CN210071552U (en) | Triaxial confining pressure test device for pile and anchor rod | |
| CN107152038B (en) | Geotechnical centrifugal model test equipment and excavation simulation method | |
| CN110806372A (en) | Soil body penetration test device and method under variable stress condition | |
| CN104062056A (en) | Swelling soil side expansive force comprehensive testing device | |
| CN109187204A (en) | A kind of experimental rig for simulating pile-soil interaction when vertically recycling load-bearing | |
| CN110805076A (en) | Test device and method for simulating reinforcement of passive area of foundation pit | |
| CN106504630A (en) | Pass through the tunnel experiment system of karst strata | |
| CN110528602A (en) | Earth lateral pressure experiment simulator under diaphram wall difference level of ground water operating condition | |
| CN115839822B (en) | System and method for testing process of submerged and pumping drainage of mountain tunnel induced by heavy rainfall | |
| CN103389364A (en) | Pile-supported reinforced embankment three-dimensional soil arching effect testing apparatus and pile-supported reinforced embankment three-dimensional soil arching effect testing method |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191203 |