CN204964498U - Simulation deep basal pit flows test device that soil destroyed - Google Patents
Simulation deep basal pit flows test device that soil destroyed Download PDFInfo
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- CN204964498U CN204964498U CN201520620982.4U CN201520620982U CN204964498U CN 204964498 U CN204964498 U CN 204964498U CN 201520620982 U CN201520620982 U CN 201520620982U CN 204964498 U CN204964498 U CN 204964498U
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- groove
- deep basal
- soil
- basal pit
- water
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- 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 simulation deep basal pit flows test device that soil destroyed, dress appearance groove device be the hollow cylinder structure of a nos closing cap, are provided with on the circular clamping groove of bottom no. 1 to be used for simulating the columniform secret hole wire net that the wall was cheated to the deep basal pit, be provided with the columniform baffle that permeates water on the circular clamping groove no. 2, it sets up sample soil to permeate water between baffle and the close hole wire net, permeate water and pack from the outside water source that the delivery pipe flowed into between the inner wall of baffle and dress appearance groove device. The device can truly simulate the permeability of actual bad border of engineering soil through place the soil sample the same with the realistic simulation deep basal pit in cylindric dress appearance groove, realize through applying the counter weight in soil sample top that simulate actual engineering, people, material, quick -witted load flow the influence that soil destroyed to the foundation ditch, through changing the intensive empty size of wire net, simulate actual foundation ditch hole wall water permeability, different water heads flow the influence that soil destroyed to the deep basal pit inside and outside can simulating the deep basal pit through the outer height of change water -stop sheet.
Description
Technical field
The utility model relates to hydraulic engineering physical model experiment field, specifically a kind of test unit of simulating deep basal pit soil destruction.
Background technology
Along with the fast development of China's economy, the construction in square, Urban Underground store, parking lot, the scale of foundation ditch and form are all at development, and city foundation ditch develops into deep-foundation pit engineering more, and the technology of utilization is also improving constantly.But the security incident of base pit engineering but occurs repeatedly, cause the very big concern of engineering construction person.So be necessary to further investigate safely Construction of Deep Excavation Engineering, especially in groundwater level region, the adverse effect that the construction of osmosis to base pit engineering of underground water brings can not be ignored.
At present, the simulation about deep basal pit soil destruction is confined to the scope of finite element seepage simulation mostly, because it cannot consider that particle runs off the native water interaction process caused, therefore cannot the formation of best explain deep basal pit soil destruction, evolution.Physical experiments, principle is simple, and visual phenomenon, the conclusion drawn has scientific meaning, and becoming is an effective research means.
Existing physical model, is merely able to simple simulated damage result, cannot represent deep basal pit soil destruction process intuitively.Additional load during foundation pit construction is nearly all have ignored in all physical models, as: the impact that the accumulation, workmen etc. of construction machinery, construction material produce deep basal pit soil destruction.And existing model can only simulate monolateral stream soil phenomenon, the generation of real foundation ditch stream soil from from all directions, therefore simulate the experimental result that obtains and real gap larger.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides the test unit of the simulation deep basal pit soil destruction of the seepage field in a kind of more real simulation and test deep-foundation pit engineering, stress field.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Simulate a test unit for deep basal pit soil destruction, comprise the outer water level automatic control device of foundation ditch, dress sample slot device and data collector, wherein, the outer water level automatic control device of foundation ditch is communicated with dress sample slot device by feed pipe; Dress sample slot device is connected by data line with data collector; Described dress sample slot device is a hollow cylindrical structure without capping, the circular draw-in groove that two diameters do not wait is provided with bottom dress sample slot device, be respectively circular draw-in groove one and circular draw-in groove two, described circular draw-in groove one and circular draw-in groove two are concentric with dress sample slot device, circular draw-in groove one is positioned at the inside of circular draw-in groove two, circular draw-in groove one is provided with the columniform close hole woven wire for simulating Wall of Deep Foundation Pit; Circular draw-in groove two is provided with columniform permeable dividing plate, between permeable dividing plate and close hole woven wire, sample soil is set; The external water source flowed into from feed pipe is filled between the inwall of permeable dividing plate and dress sample slot device; Be provided with water-stop sheet between the inwall of permeable dividing plate and dress sample slot device, and this water-stop sheet can move up and down along the inwall of water dividing plate with dress sample slot device.
Be provided with water-stop sheet moving up and down between the inwall of permeable dividing plate and dress sample slot device, this space is separated to form the water level groove of a Water level controllable by water-stop sheet, is realized the simulation of the outer water level of different deep basal pit by the height of up-down adjustment water-stop sheet.
Preferably, permeable dividing plate is marked with scale mark, can monitor the height of water-stop sheet.
Water in water tank can adopt red staining, and such experimenter can intuitively see the seepage flow of water and the overall process of foundation ditch generation soil destruction through clear glass.
The utility model according to actual Foundation Pit wall situation, can arrange the close hole woven wire of different pore size, to reach same with Practical Project environment facies.
The outer water level automatic control device of described foundation ditch comprises for sending into feed pipe after external water source supercharging and then send into the full-automatic supercharge pump filling sample slot device.
Data collector described in the utility model comprises the terminal of the test unit outside being arranged at simulation deep basal pit soil destruction, the liquid level sensor be arranged on the woven wire inwall of close hole, is arranged on the electronic flow-meter of feed pipe water outlet, wherein, electronic flow-meter, liquid level sensor are connected with terminal by data line.
Permeable dividing plate is provided with the chute for installing water-stop sheet.
Consideration additional load described in the utility model on the impact of foundation ditch soil destruction by applying counterweight to realize above sample soil, and in simulation Practical Project, people, material, machine load are on the impact of foundation ditch soil destruction.
Compared with prior art, the utility model has following beneficial effect:
This device described in the utility model can by placing the sample soil identical with realistic simulation deep basal pit, the perviousness of real simulation Practical Project bad border soil in cylindric dress sample groove; By applying counterweight to realize above sample soil, in simulation Practical Project, people, material, machine load are on the impact of foundation ditch soil destruction; By changing the size in the intensive cavity of woven wire, simulate actual Foundation Pit wall water permeability; Different water-head can be simulated inside and outside deep basal pit on the impact of deep basal pit soil destruction by the height changed outside water-stop sheet; Full-automatic supercharge pump in outer water level automatic control device, can outside foundation pit enclosure, the rising of head produces in the actual base pit engineering of real simulation water pressure on the impact of soil mass of foundation pit soil destruction, and the simulation of water-head can only be realized unlike traditional experimental provision oscilaltion water tank, and can not water pressure that is virtually reality like reality, improve the precision of experimental provision.To sum up, this device, also can as the use of the teachings and researches testing equipment of Geotechnical Engineering and Structural Engineering while the design for base pit engineering provides directive function.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the structural representation of permeable dividing plate;
Fig. 3 is the polycrystalline substance schematic diagram of dress sample slot device;
Fig. 4 is the structural representation after the utility model loads sample soil;
In figure: 1, full-automatic supercharge pump; 2, feed pipe; 3, electronic flow-meter; 4, water-stop sheet; 5, permeable dividing plate; 6, close hole woven wire; 7, liquid level sensor; 8, terminal; 9, sample slot device is filled; 10, circular draw-in groove one; 11, circular draw-in groove two.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to various Equivalent Form of the present invention has all fallen within the utility model claims limited range.
Embodiment 1
As shown in Figure 1, 2, 3, described dress sample slot device 9 is a hollow cylindrical structure without capping, the circular draw-in groove that two diameters do not wait is provided with bottom dress sample slot device 9, be respectively circular draw-in groove 1 and circular draw-in groove 2 11, described circular draw-in groove 1 and circular draw-in groove 2 11 are concentric with dress sample slot device 9, circular draw-in groove 1 is positioned at the inside of circular draw-in groove 2 11, circular draw-in groove 1 is provided with the columniform close hole woven wire 6 for simulating Wall of Deep Foundation Pit; Circular draw-in groove 2 11 is provided with columniform permeable dividing plate 5, between permeable dividing plate 5 and close hole woven wire 6, sample soil is set; Be provided with water-stop sheet 4 between the inwall of permeable dividing plate 5 and dress sample slot device 9, and this water-stop sheet 4 can move up and down along the inwall of permeable dividing plate 5 with dress sample slot device 9.
Embodiment 2
As shown in Figure 4, when utilizing the utility model to study the experiment of deep basal pit soil destruction, following concrete measure can be adopted:
A. according to Practical Project situation, choose the sample soil close with the actual base pit engineering soil body, be placed in dress sample slot device 9, carry out appropriate compacting.
B. according to outside head difference in realistic simulation foundation ditch, regulate the height of water-stop sheet, make it to conform to Practical Project.
C. according to working-yard construction machinery and material preloading, personnel's distribution situation, above sample soil, counterweight is added, to simulate the impact of additional load on foundation ditch soil destruction.
D. open the outer water level automatic control device of foundation ditch, in dress sample slot device 9, inject red water, according to actual hydraulic pressure, regulate the parameter of full-automatic supercharge pump 1, simulation actual hydraulic pressure.
D. equally distributed liquid level sensor 7 and electronic flow-meter 3 can measure correlation parameter, can by the seepage field in terminal 8 in real time monitoring foundation ditch soil destruction process and displacement field.
This experimental provision is applicable to the research of deep basal pit soil destruction, for actual dam body engineering construction, design etc. provide reference and guidance, and also can as the use of the teachings and researches experiment of Geotechnical Engineering and hydraulic engineering subject.
Claims (5)
1. simulate a test unit for deep basal pit soil destruction, comprise the outer water level automatic control device of foundation ditch, dress sample slot device and data collector, wherein, the outer water level automatic control device of foundation ditch is communicated with dress sample slot device by feed pipe; Dress sample slot device is connected by data line with data collector; It is characterized in that, described dress sample slot device is a hollow cylindrical structure without capping, the circular draw-in groove that two diameters do not wait is provided with bottom dress sample slot device, be respectively circular draw-in groove one and circular draw-in groove two, described circular draw-in groove one and circular draw-in groove two are concentric with dress sample slot device, circular draw-in groove one is positioned at the inside of circular draw-in groove two, circular draw-in groove one is provided with the columniform close hole woven wire for simulating Wall of Deep Foundation Pit; Circular draw-in groove two is provided with columniform permeable dividing plate, between permeable dividing plate and close hole woven wire, sample soil is set; The external water source flowed into from feed pipe is filled between the inwall of permeable dividing plate and dress sample slot device; Be provided with water-stop sheet between the inwall of permeable dividing plate and dress sample slot device, and this water-stop sheet can move up and down along the inwall of permeable dividing plate with dress sample slot device.
2. the test unit of simulation deep basal pit soil destruction according to claim 1, is characterized in that, the outer water level automatic control device of described foundation ditch comprises for sending into feed pipe after external water source supercharging and then send into the full-automatic supercharge pump filling sample slot device.
3. the test unit of simulation deep basal pit soil destruction according to claim 1, it is characterized in that, described data collector comprises the terminal of the test unit outside being arranged at simulation deep basal pit soil destruction, the liquid level sensor be arranged on the woven wire inwall of close hole, is arranged on the electronic flow-meter of feed pipe water outlet, wherein, electronic flow-meter, liquid level sensor are connected with terminal by data line.
4. the test unit of simulation deep basal pit soil destruction according to claim 1, is characterized in that, permeable dividing plate is provided with the chute for installing water-stop sheet.
5. the test unit of simulation deep basal pit soil destruction according to claim 1, it is characterized in that, the top of sample soil arranges balancing weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620982.4U CN204964498U (en) | 2015-08-18 | 2015-08-18 | Simulation deep basal pit flows test device that soil destroyed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520620982.4U CN204964498U (en) | 2015-08-18 | 2015-08-18 | Simulation deep basal pit flows test device that soil destroyed |
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| Publication Number | Publication Date |
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| CN204964498U true CN204964498U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520620982.4U Expired - Fee Related CN204964498U (en) | 2015-08-18 | 2015-08-18 | Simulation deep basal pit flows test device that soil destroyed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505448A (en) * | 2017-09-12 | 2017-12-22 | 同济大学 | Seepage inflow erosion model equipment, system and test method caused by underground utilities breakage |
| CN109827883A (en) * | 2019-03-14 | 2019-05-31 | 中国建筑东北设计研究院有限公司 | A kind of experimental rig and test method for simulating campshed supporting foundation pit stability study under deep-foundation pit engineering pipeline breaking operating condition |
-
2015
- 2015-08-18 CN CN201520620982.4U patent/CN204964498U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505448A (en) * | 2017-09-12 | 2017-12-22 | 同济大学 | Seepage inflow erosion model equipment, system and test method caused by underground utilities breakage |
| CN107505448B (en) * | 2017-09-12 | 2020-08-14 | 同济大学 | Seepage erosion model device, system and test method caused by underground pipeline damage |
| CN109827883A (en) * | 2019-03-14 | 2019-05-31 | 中国建筑东北设计研究院有限公司 | A kind of experimental rig and test method for simulating campshed supporting foundation pit stability study under deep-foundation pit engineering pipeline breaking operating condition |
| CN109827883B (en) * | 2019-03-14 | 2024-02-27 | 中建东设岩土工程有限公司 | Test device and test method for simulating stability study of pile-row support foundation pit under deep foundation pit engineering pipeline rupture working condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160818 |