CN208140672U - A kind of laboratory testing rig for simulating base pit engineering building enclosure random variation - Google Patents
A kind of laboratory testing rig for simulating base pit engineering building enclosure random variation Download PDFInfo
- Publication number
- CN208140672U CN208140672U CN201820731245.5U CN201820731245U CN208140672U CN 208140672 U CN208140672 U CN 208140672U CN 201820731245 U CN201820731245 U CN 201820731245U CN 208140672 U CN208140672 U CN 208140672U
- Authority
- CN
- China
- Prior art keywords
- building enclosure
- steel plate
- pit engineering
- random variation
- base pit
- 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.)
- Withdrawn - After Issue
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 32
- 239000011435 rock Substances 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 61
- 239000010959 steel Substances 0.000 claims description 61
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 229910052742 iron Inorganic materials 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000009897 systematic effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010425 computer drawing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- 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 utility model discloses a kind of laboratory testing rigs for simulating base pit engineering building enclosure random variation, including model slot, building enclosure, combination baffle, reaction frame and data acquisition device.The experimental rig of this structure can simulate the random variation of base pit engineering building enclosure by changing baffle shapes, and the stress variation characteristic and foundation pit damage -form of Rock And Soil in foundation pit can be monitored, the experimental study of base pit engineering can be made more systematic, more scientific, while reliable test basis can also be provided for the proposition and formation of related foundation pit engineering theory system.
Description
Technical field
The utility model relates to geotechnological laboratory test fields more particularly to a kind of simulation base pit engineering building enclosure arbitrarily to become
The laboratory testing rig of shape.
Background technique
With the continuous quickening of Urbanization in China, in order to solve explosive population growth backwardness opposite with urban infrastructure
Contradiction, urban construction more form Three-dimensional pattern, this also promotes the quantity of base pit engineering more and more, and form is more and more
Sample, local environment become increasingly complex, and Deformation control requirement is higher and higher, and the design of base pit engineering is converted into change from stability contorting
Shape control, the transformation also promote the theory of base pit engineering finer.
Currently, the indoor model test for base pit engineering is all based on similarity principle, depanning is calculated by the likelihood ratio
The rigidity of foundation pit enclosure structure in type simulates building enclosure by selecting suitable material, and obtains to refer to by test
Lead the conclusion or suggestion of Practical Project.Though a certain specific engineering can be simulated and be instructed to the above method, being unable to get has more
The conclusion of broad sense, and with the diversification of base pit engineering form and the complication of environment, the change of foundation pit enclosure structure
Shape characteristic becomes increasingly complex, and the Deformation control of base pit engineering is also increasingly stringenter, and it is different urgently to carry out foundation pit enclosure structure thus
The stress variation characteristic research of the soil body under deformation characteristic pushes base pit engineering to fine to enrich the theoretical system of base pit engineering
Change control transformation.
Such as Publication No. CN102914632A, a kind of multifunctional soil wooden mold chamber by model test box body plus
It carries and is formed with part of detecting, activity stake baffle with the components such as control section and displacement test system are moved down, utilize videographic measurment
Technology measures whole audience displacement.Can be achieved 20 kinds of piles with different away from than upper arch effect demonstrating, Piled Embankments filler particles soil arch effect
Answer and rigid foundation under composite foundation bed course effect analog experiment.Simultaneously also using the chamber carry out underground pipe stress with
The geotechnical model test device of the simulations such as deformation simulative, slope deforming, excavation of foundation pit and building enclosure stress and deformation.The technology
Foundation pit enclosure structure cannot achieve the random variation of active in scheme, and experimental condition range also suffers restraints.
Publication No. CN203949850U for another example, a kind of experimental rig of base pit engineering seepage failure development process should
Device is mainly made of dress sample slot device, water level control slot device, data acquisition device etc..It fills and is inserted inside sample slot equipped with baffle
Slot can simulate the insert depth of practical base pit engineering building enclosure to base by changing the insert depth of internal entity baffle
The seepage flow and seepage failure phenomenon that bottom and surrounding soil generate are cheated, is overcome in the past to soil body one dimensional fluid flow can only be studied
Limitation；Change height of water level by water level control slot, simulates seepage flow and seepage failure of the foundation pit under different levels of ground water；It is right
The data that dual rotor flowmeter, head measuring device, deformation measuring device are collected are analyzed, and corresponding seepage flow is obtained
Field, stress field, deformation field.Design and construction for building enclosure in practical base pit engineering provides guidance, can also be used as ground
Engineering is used with hydraulic engineering teaching with scientific experiment.The technical solution is permeated mainly in level of ground water, the change to soil layer
Shape test effect is bad, and cannot achieve the active deformation of building enclosure.
Utility model content
The purpose of this utility model is to solve the deficiency of prior art, provides a kind of special simulation base pit engineering building enclosure
The experimental rig of Rock soil Characteristics in the case of random variation.
The technical solution adopted in the utility model is：A kind of laboratory test for simulating base pit engineering building enclosure random variation
Device, including model slot, building enclosure, combination baffle, reaction frame and data acquisition device；The model slot includes pedestal, extremely
Few two side steel plates and the support of at least two section steel reinforcements, the side steel plate are equipped with side steel plate groove；The building enclosure includes
Steel plate strip, stainless steel hinge and sealing plate are connected between the steel plate strip by stainless steel hinge, and the steel plate strip is around stainless steel
Hinge rotation, stainless steel hinge connect sealing plate close to Rock And Soil side；The combination baffle is the baffle combination of arbitrary shape
It forms, shape is determined that the baffle is placed in the side steel plate groove of side steel plate by default building enclosure deformation；It is described anti-
Power frame includes shape steel bracket, jack and fashioned iron vertical beam, and fashioned iron vertical beam front end connects Fence structure, and its rear end connection is very heavy
Top, described jack one end connect fashioned iron vertical beam, other end bolt-connected steel bracket；The data acquisition device includes soil
Pressure cell, pore pressure gauge, data collecting instrument and data terminal.
The pedestal is equipped with base groove as a further improvement of the utility model, and side steel plate lower end is located at pedestal
On base groove in, side steel plate top and section steel reinforcement support weld.
As the further improvement of the utility model, the soil pressure cell and pore pressure gauge are located in model slot,
And successively signal connects data collecting instrument and data terminal.
The utility model use beneficial effect be：The experimental rig of this structure simulates foundation pit by changing baffle shapes
The random variation of engineering building enclosure, and the stress variation characteristic and foundation pit damage -form of Rock And Soil in foundation pit can be monitored, it can
Keep the experimental study of base pit engineering more systematic, more scientific, at the same can also for related foundation pit engineering theory system proposition and
It is formed and reliable test basis is provided.
Detailed description of the invention
Fig. 1 is utility model diagram.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the C-C sectional view of Fig. 3.
As shown in the figure：1 pedestal, 2 steel plate strips, 3 baffles, 4 fashioned iron vertical beams, 5 base grooves, 6 jack, 7 fashioned iron
Bracket, 8 side steel plates, 9 side steel plate grooves, the support of 10 section steel reinforcements, 11 stainless steel hinges, 12 sealing plates, 13 soil pressure cells,
14 pore pressure gauges, 15 data collecting instruments, 16 data terminals.
Specific embodiment
Below with reference to Fig. 1 to Fig. 4, the utility model is described further.
As shown, a kind of laboratory testing rig for simulating base pit engineering building enclosure random variation, including model slot, enclose
Protection structure, combination baffle, reaction frame and data acquisition device；
The model slot includes pedestal 1, at least two side steel plates 8 and at least two section steel reinforcements support 10, the side steel plate 8
It is equipped with side steel plate groove 9；Two blocks of side steel plates, one piece of steel plate base and section steel reinforcement support are fixed as one and stablize whole, fashioned iron
Strengthening support and side steel plate pass through welding on top and are linked to be an entirety, guarantee the plumbness and stabilization of side steel plate.On the steel plate of side
Two grooves are respectively set, for fixing and placing building enclosure and combination baffle.
The building enclosure includes steel plate strip 2, stainless steel hinge 11 and sealing plate 12, is passed through not between the steel plate strip 2
The steel hinge 11 that becomes rusty is connected, and the steel plate strip is rotated around stainless steel hinge 11, and stainless steel hinge 11 connects close close to Rock And Soil side
Sealing plate 12 avoids Rock And Soil from squeezing out from stainless steel hinge 11；Guarantee that building enclosure can random variation by above-mentioned technological means.
The combination baffle is that the baffle 3 of arbitrary shape is composed, and shape is determined by default building enclosure deformation,
Baffle 3 is cut by steel plate, and baffle 3 is placed in front of the test in the side steel plate groove 9 of side steel plate 8, and is located at and can arbitrarily be become
The outside of shape building enclosure；
The reaction frame includes shape steel bracket 7, jack 6 and fashioned iron vertical beam 4, and 4 front end of fashioned iron vertical beam connects fence
Structure, its rear end connect jack 6, and described 6 one end of jack connects fashioned iron vertical beam 4, other end bolt-connected steel bracket
7；Guarantee that building enclosure is in a vertical state before the test.
The data acquisition device includes soil pressure cell 13, pore pressure gauge 14, data collecting instrument 15 and data terminal
16.Soil pressure cell 13, pore pressure gauge 14 are buried in the Rock And Soil sample in model slot, and the data of acquisition are acquired through data
Instrument 15 is transmitted to data terminal 16 and is analyzed and processed.
Model slot is made of steel plate base 1, two side steel plate 8 and section steel reinforcement a support 10 with groove with groove.
Steel plate 8 lower end in side is inserted directly into the groove of steel plate base 1, it is ensured that relative displacement, 8 top of side steel plate and two types do not occur in it
Steel strengthening support 10 is linked to be an entirety by welding, guarantees the vertical of side steel plate and stablizes.
For the working performance for improving reaction frame, set that there are four hydraulic synchronization jack, four hydraulic synchronizations thousand on reaction frame
Jin top edge vertical direction is set as two rows of, and each vertical setting of types jack front end connects a fashioned iron vertical beam, and fashioned iron vertical beam directly acts on
In building enclosure.Two hydraulic synchronization jack are respectively acting in three branches of building enclosure in horizontal direction.
The course of work of this equipment can be divided into three phases, i.e. preparation stage, experimental stage and clean-up phase, be described in detail such as
Under：
（1）Preparation stage
Firstly, according to preset foundation pit enclosure structure deformation characteristic, by computer drawing deformation curve, and by baffle 3
It is cut into preset shape, the baffle combination of each shape is formed, may make up the combination baffle of arbitrary shape, by building enclosure and group
It closes baffle 3 to be put into together in the groove of side steel plate 8, wherein combination baffle 3 is located at the outside of building enclosure.Then, counter-force is utilized
Hydraulic synchronization jack 6 on frame, and being acted directly on by fashioned iron vertical beam 4 can be in building enclosure, it is ensured that it is filled out to model slot
Building enclosure is in a vertical state during soil.Finally, by prepared Rock And Soil soil sample placement in layers to model slot, simultaneously
Embedment soil pressure cell 13 and pore pressure gauge 14 in place, and connected with data collecting instrument 15 and data terminal 16,
Rock And Soil is filled to designed elevation, preconsolidation is carried out to Rock And Soil.
（2）Experimental stage
After the completion of Rock And Soil preconsolidation, control hydraulic synchronization jack 6 is shunk, and building enclosure is made directly to be deformed into group
It closes on baffle 3, default deformation occurs, while recording ground using soil pressure cell 13, pore pressure gauge 14 and data collecting instrument
The change procedure of internal soil pressure and pore water pressure, observes the destruction characteristic of foundation pit.
（3）Clean-up phase
After off-test, the Rock And Soil in model slot is cleared up, extracts building enclosure and combination baffle 3, and site clearing,
Prepare for test next time.
The experimental rig of this structure simulates the random variation of base pit engineering building enclosure by changing baffle shapes, and can
The stress variation characteristic and foundation pit damage -form for monitoring Rock And Soil in foundation pit, can make the experimental study of base pit engineering more be
It unites, is more scientific, while reliable test basis can also be provided for the proposition and formation of related foundation pit engineering theory system.
Those skilled in the art should know the protection scheme of the utility model is not limited only to the above embodiments, may be used also
To carry out various permutation and combination and transformation on the basis of the above embodiments, without departing from the spirit of the present invention,
The various transformation carried out to the utility model are all fallen in the protection scope of the utility model.
Claims (5)
1. a kind of laboratory testing rig for simulating base pit engineering building enclosure random variation, it is characterized in that including model slot, going along with sb. to guard him
Structure, combination baffle, reaction frame and data acquisition device；
The model slot includes pedestal（1）, at least two side steel plates（8）It is supportted at least two section steel reinforcements（10）, the side steel
Plate（8）It is equipped with side steel plate groove（9）；
The building enclosure includes steel plate strip（2）, stainless steel hinge（11）And sealing plate（12）, the steel plate strip（2）Between lead to
Cross stainless steel hinge（11）It is connected, the steel plate strip is around stainless steel hinge（11）Rotation, stainless steel hinge（11）Close to Rock And Soil
Side connects sealing plate（12）；
The combination baffle is the baffle of arbitrary shape（3）It is composed, shape is determined by default building enclosure deformation, institute
State baffle（3）It is placed in side steel plate（8）Side steel plate groove（9）It is interior；
The reaction frame includes shape steel bracket（7）, jack（6）With fashioned iron vertical beam（4）, the fashioned iron vertical beam（4）Front end connection
Fence structure, its rear end connect jack（6）, the jack（6）One end connects fashioned iron vertical beam（4）, other end bolt company
Direct type steel bracket（7）；
The data acquisition device includes soil pressure cell（13）, pore pressure gauge（14）, data collecting instrument（15）With data end
End（16）.
2. a kind of laboratory testing rig for simulating base pit engineering building enclosure random variation according to claim 1, special
Sign is the pedestal（1）It is equipped with base groove（5）, side steel plate（8）Lower end is located at pedestal（1）On base groove（5）It is interior, side
Steel plate（8）Top and section steel reinforcement support（10）Welding.
3. a kind of laboratory testing rig for simulating base pit engineering building enclosure random variation according to claim 1, special
Sign is that the reaction frame is set there are four hydraulic synchronization jack, and four hydraulic synchronization jack are set as two along the vertical direction
Row, each vertical setting of types hydraulic synchronization jack connect a steel vertical beam.
4. a kind of laboratory testing rig for simulating base pit engineering building enclosure random variation according to claim 3, special
Sign is horizontally oriented two hydraulic synchronization jack and is respectively acting in three branches of building enclosure.
5. a kind of interior for simulating base pit engineering building enclosure random variation as claimed in any of claims 1 to 4
Experimental rig, it is characterized in that the soil pressure cell（13）And pore pressure gauge（14）In model slot, and signal successively connects
Connect data collecting instrument（15）And data terminal（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731245.5U CN208140672U (en) | 2018-05-17 | 2018-05-17 | A kind of laboratory testing rig for simulating base pit engineering building enclosure random variation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820731245.5U CN208140672U (en) | 2018-05-17 | 2018-05-17 | A kind of laboratory testing rig for simulating base pit engineering building enclosure random variation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208140672U true CN208140672U (en) | 2018-11-23 |
Family
ID=64313874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820731245.5U Withdrawn - After Issue CN208140672U (en) | 2018-05-17 | 2018-05-17 | A kind of laboratory testing rig for simulating base pit engineering building enclosure random variation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208140672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490139A (en) * | 2018-05-17 | 2018-09-04 | 铜陵学院 | A kind of laboratory testing rig and its test method of simulation base pit engineering building enclosure random variation |
| CN108490139B (en) * | 2018-05-17 | 2024-10-29 | 铜陵学院 | Indoor test device for simulating random deformation of foundation pit engineering building envelope and test method thereof |
-
2018
- 2018-05-17 CN CN201820731245.5U patent/CN208140672U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490139A (en) * | 2018-05-17 | 2018-09-04 | 铜陵学院 | A kind of laboratory testing rig and its test method of simulation base pit engineering building enclosure random variation |
| CN108490139B (en) * | 2018-05-17 | 2024-10-29 | 铜陵学院 | Indoor test device for simulating random deformation of foundation pit engineering building envelope and test method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108061687B (en) | Geotechnical engineering simulation test platform for researching potential failure surface | |
| CN103837360B (en) | Tunnel pipe shed construction method simulated excavation device and implementation method thereof | |
| CN107024574A (en) | A kind of soil arching effect simulation test device and test method | |
| CN108195723B (en) | Permeation grouting test system and method for reinforcing loose gravel soil | |
| CN107119731A (en) | Foundation ditch group excavates the model test apparatus to close to buildings deformation effect | |
| CN108643247A (en) | Soft clay area rectangle foundation pit bottom soil body reinforced model testing device and test method | |
| CN203745218U (en) | Tunnel pipe shed construction method simulation excavation device | |
| CN112035937B (en) | Tunnel construction surrounding rock deformation analysis and informatization construction method | |
| CN106952003A (en) | High Ground Stress Areas beded rock mass underground rock cavern Failure type Forecasting Methodology | |
| CN209486096U (en) | A kind of simulation Earth cave model test box | |
| CN110133210A (en) | Earth and rockfill dam slope failure experimental rig and application method under the conditions of a kind of seepage flow | |
| CN106592653B (en) | A kind of ponding loading test method of strip footing model | |
| CN206095660U (en) | Indoor testing system of quiet dynamic response characteristic of multi -functional reduced scale tunnel structure | |
| CN113536414B (en) | Rock slope stability analysis method, system and medium based on three-dimensional modeling | |
| CN113010997B (en) | Early warning treatment method for pile foundation impact hole forming construction accidents in karst development area | |
| CN208140672U (en) | A kind of laboratory testing rig for simulating base pit engineering building enclosure random variation | |
| CN112227433A (en) | Model test device and test method for pile foundation bearing capacity during fault zone dislocation | |
| CN112630032A (en) | Adjustable prototype test device for pipe curtain structural member | |
| CN108490139A (en) | A kind of laboratory testing rig and its test method of simulation base pit engineering building enclosure random variation | |
| CN110176176A (en) | The shield driving Stratum Loss simulator and method of more storehouse cellular-type water pocket drainings | |
| CN214472326U (en) | Adjustable prototype test device for pipe curtain structural member | |
| CN112730730B (en) | Model test device and test method for highway underlying burning coal bed | |
| CN106193139B (en) | A kind of test device of the foundation pit construction to Influence of Pile Foundation that border on the river | |
| Terzaghi | Settlement of structures in Europe and methods of observation | |
| CN113006084A (en) | Construction method and dynamic design method of support-free foundation pit supporting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181123 Effective date of abandoning: 20241029 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181123 Effective date of abandoning: 20241029 |