CN201876370U - Model testing device convenient for simulating foundation pit excavation support erection - Google Patents
Model testing device convenient for simulating foundation pit excavation support erection Download PDFInfo
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- CN201876370U CN201876370U CN2010205719973U CN201020571997U CN201876370U CN 201876370 U CN201876370 U CN 201876370U CN 2010205719973 U CN2010205719973 U CN 2010205719973U CN 201020571997 U CN201020571997 U CN 201020571997U CN 201876370 U CN201876370 U CN 201876370U
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Abstract
The utility model relates to a model testing device convenient for simulating foundation pit excavation support erection, which comprises a model box, a model plate, a telescopic supporting rod piece, a supporting gasket, a vertical bracket and a transverse bracket, wherein the model plate comprises a No.1 plate, a No. 2 plate and a No. 3 plate, which are vertically arranged and fixed by a front wall and a rear inner wall of the model box; the supporting gasket is fixed on the model plate by a bolt; and the telescopic supporting rod piece is erected on the supporting gasket. Compared with the prior art, the model testing device has the function of comprehensively researching all characteristics in the process of foundation pit excavation, and has the advantages of conveniently measuring the building envelope of all stages of the foundation pit excavation, the stress and deformation modes of a supporting system, and the like.
Description
Technical field
The utility model relates to a kind of model test apparatus, especially relates to a kind of simulating excavation of being convenient to and supports the model test apparatus that sets up.
Background technology
Fast development along with urban construction; underground space utilization more and more obtains paying attention to; extensive excavation of foundation pit problem is also of common occurrence in engineering practice in recent years; how building enclosure load metamorphism proterties in the Excavation Process is analyzed, become the difficult point problem that the civil engineering construction field needs to be resolved hurrily.Yet, also lack the practical and effective analytical approach at present both at home and abroad, the analysis of this type of problem is normally relied on the engineering experience estimation, tool bears the character of much blindness.
For remedying the limitation of theoretical analysis, for important engineering, need combination model test to analyze, gordian technique wherein is the setting up of miniature support system in the simulating excavation how, when particularly having multiple tracks to support, setting up of miniature support system is a difficult point problem in the test.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of for the defective that overcomes above-mentioned prior art existence every characteristic in the Excavation Process is studied, can conveniently record the stressed and deformation pattern of each stage building enclosure of excavation of foundation pit and support system, be convenient to simulating excavation and support the model test apparatus that sets up.
The purpose of this utility model can be achieved through the following technical solutions: a kind of simulating excavation of being convenient to supports the model test apparatus that sets up, it is characterized in that, this device comprises model casing, mould plate, the extension type supporting rod, support pad, vertical supports and horizontal support, described mould plate comprises plate No. one, No. two plates and No. three plates, a described plate, No. two plates and No. three plates all vertically are provided with, and fix by inwall before and after the model casing, described support pad is by being bolted on the mould plate, and described extension type supporting rod is erected on the support pad.
Described support pad is provided with the support bayonet socket, and described extension type supporting rod is arranged on and supports in the bayonet socket.
Described extension type supporting rod combines by first leg bar and second leg bar, wherein first leg bar inboard is provided with screw thread, the second leg bar outside is provided with screw thread, be spirally connected by screw thread between described first leg bar and the second leg bar, and can be by the length of threaded adjusting extension type supporting rod, the two ends of extension type supporting rod are stuck in the support bayonet socket on the support pad, and hold out against with the both sides mould plate.
The left and right sides of described model casing and rear side are steel plate, and the front side is a tempered glass.
Described mould plate is an aluminum plate.
Compared with prior art, the utility model has solved the difficult point problem that existing test unit miniature support system when simulating excavation is set up, realized the simulation of Excavation Process comparatively easily, broken through the restriction that particularly miniature support is set up to excavation of foundation pit of existing test unit, can study every characteristic in the Excavation Process easily and effectively, and can access the stressed and deformation pattern of each stage building enclosure of excavation of foundation pit and support system.
Description of drawings
Fig. 1 is convenient to the front elevation that simulating excavation supports the model test apparatus that sets up for the utility model is a kind of;
Fig. 2 is convenient to the vertical view that simulating excavation supports the model test apparatus that sets up for the utility model is a kind of;
Fig. 3 is a plate plate face design drawing;
Fig. 4 is No. two plates plate face design drawing with respect to a plate;
Fig. 5 is that No. two plates are with respect to the plate face of No. three plates and the design drawing of No. three plate plate faces;
Fig. 6 is the support pad design drawing;
Fig. 7 is an extension type supporting rod design drawing.
Wherein, 1 is aluminium matter mould plate, and 11 is that plate, 12 is that No. two plates, 13 are that No. three plates, 2 are the spacers bolt for supporting bayonet socket, 6 for support pad, 51 for tempered glass, 5 for model casing, 4 for second leg bar, 3 for first leg bar, 22 for extension type supporting rod, 21.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
Shown in Fig. 1-7, a kind of simulating excavation of being convenient to supports the model test apparatus that sets up, this device comprises model casing 3, mould plate 1, extension type supporting rod 2, support pad 5, vertical supports and horizontal support, mould plate 1 comprises plate 11, No. two plates 12 and No. three plates 13, plate 11, No. two plates 12 and No. three plates 13 all vertically are provided with, and fix by model casing 3 front and back inwalls, support pad 5 is by being bolted on the mould plate 1, and extension type supporting rod 2 is erected on the support pad 5.Support pad 5 is provided with and supports bayonet socket 51, and extension type supporting rod 2 is arranged on and supports in the bayonet socket 51.Extension type supporting rod 2 combines by first leg bar 21 and second leg bar 22, wherein first leg bar 21 inboards are provided with screw thread, second leg bar 22 outsides are provided with screw thread, be spirally connected by screw thread between first leg bar 21 and the second leg bar 22, and can be by the length of threaded adjusting extension type supporting rod 2, the two ends of extension type supporting rod 2 are stuck in the support bayonet socket 51 on the support pad 5, and hold out against with both sides mould plate 1.The left and right sides of model casing 3 and rear side are steel plate, and the front side is a tempered glass 4, the convenient internal displacement of observing the soil body.Mould plate 1 is an aluminum plate.
The relative position that aluminium matter mould plate 1 is determined according to testing program is placed in the model casing 3, and wherein, the width between the plate is the width of simulation foundation ditch, the plate hight simulating excavation degree of depth.When aluminium matter mould plate 1 was not placed in model casing 3 as yet, support pad 5 was fixed on the mould plate 1 by spacers bolt 6, and particular location should be determined according to the layout that supports.When definite extension type supporting rod 2 length, should guarantee that the minimum length that supports should be less than the minimum widith of foundation ditch, the maximum length of support should be greater than the breadth extreme of foundation ditch.Guaranteeing to support to set up has enough spaces to be positioned in the bayonet socket of pad before, has enough reaction of bearings to withstand mould plate 1 after setting up.
The course of work of this device: the filling test soil body in model casing 3, embedding test aluminium matter mould plate 1 in the soil body, can carry out the excavation of foundation pit model test, under certain experimental enviroment condition, centrifugal field for example, with soil excavation to the first road pad absolute altitude, the residual soil body in the bayonet socket is cleaned out, regulate extension type supporting rod 2 length, make its length be shorter than the foundation ditch width slightly, bracing frame is located on the bayonet socket, regulate length and make it can withstand mould plate 1, and tighten hold-down nut, prevent length variations in the process of the test.The first big foundation ditch between two, No. three plates 13 of excavation, be excavated to design bottom surface absolute altitude after, excavate one, No. two little foundation ditch between the plate 12 again to cheating end absolute altitude.By excavation step by step and the process of setting up the actual engineering excavation of support simulation.In digging process, should measure relevant data, analyze the distortion and the internal force variation characteristic of Excavation Process diaphram wall.
The utility model relates to a kind of model test system of simulating the deep pit digging and the process of support, this pilot system comprises model casing 3, support pad 5, mould plate 1, extension type supporting rod 2, at first support pad 5 is fixed on the mould plate 1 during test, mould plate 1 is placed in the model casing 3 according to the relative position of prototype.When model test, to predetermined absolute altitude, extension type supporting rod 2 is fixed on the support pad 5 the extension type screw thread in the middle of the rotation supporting rod according to the predetermined testing program excavation soil body, make its mould plate that holds out against both sides 1, thereby realized effective simulation of support system.
The utility model has solved the difficult point problem that existing test unit miniature support system when simulating excavation is set up, realized the simulation of Excavation Process comparatively easily, broken through the restriction that particularly miniature support is set up to excavation of foundation pit of existing test unit, can study every characteristic in the Excavation Process easily and effectively, and can access the stressed and deformation pattern of each stage building enclosure of excavation of foundation pit and support system.
Claims (5)
1. be convenient to the model test apparatus that the simulating excavation support is set up for one kind, it is characterized in that, this device comprises model casing, mould plate, extension type supporting rod, support pad, vertical supports and horizontal support, described mould plate comprises a plate, No. two plates and No. three plates, a described plate, No. two plates and No. three plates all vertically are provided with, and fix by inwall before and after the model casing, described support pad is by being bolted on the mould plate, and described extension type supporting rod is erected on the support pad.
2. a kind of simulating excavation of being convenient to according to claim 1 supports the model test apparatus that sets up, and it is characterized in that described support pad is provided with the support bayonet socket, and described extension type supporting rod is arranged on and supports in the bayonet socket.
3. a kind of simulating excavation of being convenient to according to claim 1 supports the model test apparatus that sets up, it is characterized in that, described extension type supporting rod combines by first leg bar and second leg bar, wherein first leg bar inboard is provided with screw thread, the second leg bar outside is provided with screw thread, be spirally connected by screw thread between described first leg bar and the second leg bar, and can be by the length of threaded adjusting extension type supporting rod, the two ends of extension type supporting rod are stuck in the support bayonet socket on the support pad, and hold out against with the both sides mould plate.
4. a kind of simulating excavation of being convenient to according to claim 1 supports the model test apparatus that sets up, and it is characterized in that the left and right sides of described model casing and rear side are steel plate, and the front side is a tempered glass.
5. a kind of simulating excavation of being convenient to according to claim 1 supports the model test apparatus that sets up, and it is characterized in that described mould plate is an aluminum plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205719973U CN201876370U (en) | 2010-10-21 | 2010-10-21 | Model testing device convenient for simulating foundation pit excavation support erection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205719973U CN201876370U (en) | 2010-10-21 | 2010-10-21 | Model testing device convenient for simulating foundation pit excavation support erection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876370U true CN201876370U (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205719973U Expired - Fee Related CN201876370U (en) | 2010-10-21 | 2010-10-21 | Model testing device convenient for simulating foundation pit excavation support erection |
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| CN (1) | CN201876370U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728146A (en) * | 2013-11-29 | 2014-04-16 | 西南交通大学 | Method for simulation foundation pit excavation inner supporting experiments on basis of simple soil engineering centrifugal machine and special clamp thereof |
| CN104833569A (en) * | 2015-05-07 | 2015-08-12 | 中国人民解放军理工大学 | Excavating and unloading device suitable for geo-mechanical model experiment |
| CN104914231A (en) * | 2015-05-20 | 2015-09-16 | 上海理工大学 | Model test device for testing foundation pit group excavation sequence and support case-caused influence on stratum |
| CN105735377A (en) * | 2016-04-01 | 2016-07-06 | 浙江大学 | Adjustable waterproof foundation pit supporting device based on foundation pit excavation model test |
| CN106049560A (en) * | 2016-05-31 | 2016-10-26 | 浙江理工大学 | Simulation model device for down digging construction of adding layer of existing basement |
| CN106645640A (en) * | 2016-12-07 | 2017-05-10 | 同济大学 | Testing device and method of foundation pit excavation rock soil centrifuge |
| CN112878392A (en) * | 2021-01-14 | 2021-06-01 | 浙江大学 | Centrifugal model test device and method for researching working character space effect of lattice-shaped diaphragm wall enclosure structure |
-
2010
- 2010-10-21 CN CN2010205719973U patent/CN201876370U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728146A (en) * | 2013-11-29 | 2014-04-16 | 西南交通大学 | Method for simulation foundation pit excavation inner supporting experiments on basis of simple soil engineering centrifugal machine and special clamp thereof |
| CN104833569A (en) * | 2015-05-07 | 2015-08-12 | 中国人民解放军理工大学 | Excavating and unloading device suitable for geo-mechanical model experiment |
| CN104914231A (en) * | 2015-05-20 | 2015-09-16 | 上海理工大学 | Model test device for testing foundation pit group excavation sequence and support case-caused influence on stratum |
| CN105735377A (en) * | 2016-04-01 | 2016-07-06 | 浙江大学 | Adjustable waterproof foundation pit supporting device based on foundation pit excavation model test |
| CN105735377B (en) * | 2016-04-01 | 2017-11-17 | 浙江大学 | A kind of adjustable waterproof foundation pit support device based on excavation of foundation pit model test |
| CN106049560A (en) * | 2016-05-31 | 2016-10-26 | 浙江理工大学 | Simulation model device for down digging construction of adding layer of existing basement |
| CN106645640A (en) * | 2016-12-07 | 2017-05-10 | 同济大学 | Testing device and method of foundation pit excavation rock soil centrifuge |
| CN106645640B (en) * | 2016-12-07 | 2019-01-25 | 同济大学 | A kind of excavation of foundation pit ground centrifuge test device and test method |
| CN112878392A (en) * | 2021-01-14 | 2021-06-01 | 浙江大学 | Centrifugal model test device and method for researching working character space effect of lattice-shaped diaphragm wall enclosure structure |
| CN112878392B (en) * | 2021-01-14 | 2022-01-25 | 浙江大学 | Centrifugal model test device and method for researching working character space effect of lattice-shaped diaphragm wall enclosure structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131021 |