CN201464277U - Filling-free type cavern or karst pipeline system in similar model test - Google Patents
Filling-free type cavern or karst pipeline system in similar model test Download PDFInfo
- Publication number
- CN201464277U CN201464277U CN2009200308905U CN200920030890U CN201464277U CN 201464277 U CN201464277 U CN 201464277U CN 2009200308905 U CN2009200308905 U CN 2009200308905U CN 200920030890 U CN200920030890 U CN 200920030890U CN 201464277 U CN201464277 U CN 201464277U
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- karst
- free type
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- model test
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Abstract
The utility model relates to a filling-free type cavern or karst pipeline system in a similar model test, comprising a testbench, wherein the testbench is internally laid with a plurality of layers of similar materials; tunnels are excavated in the similar materials which are provided with filling-free type cavern or karst pipelines; the filling-free type cavern or karst pipeline are provided with impermeable resin membrane bags which are connected with a water pump at the external part of the testbench by water inlet/outlet pipes. The utility model researches the filling-free type cavern or karst pipeline system in the model test, and solves the problems of laying and simulation of the filling-free type cavern or karst pipeline. The filling-free type cavern or karst pipelines are laid in the similar materials of the similar model test, and are closer to engineering practices compared with the researches of predecessors; and the obtained research achievement of geodynamics similar model test has wider application range.
Description
Technical field
The utility model relates to a kind of geomechanics technology, no filling-type Karst cave or karst piping system in especially a kind of layer during similar model test.
Background technology
China's karst distribution area is wide, builds subterranean tunnel engineering or excavation tunnel at karst area, very easily induces extensive, paroxysmal water bursting disaster in the construction.Chinese scholar has been carried out a large amount of model investigation work, but also has tangible weakness, when making the basic model of geomechanics layer during similar model test, generally uses homogeneous material, the laying rock-soil layer of simplification.In the actual engineering, be subjected to factor affecting such as tectonic structure and corrosion, often exist a lot of poorly plastids in the engineering rock soil mass, as no filling-type Karst cave or karst pipeline.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, simulate true to nature, can be used for simulating tunnel (lane) work progress under excavation or other factor affecting, gather the landslide precursor information, research work progress mechanics, landslide and surrouding rock deformation rule help no filling-type Karst cave or karst piping system in the layer during similar model test of the safe construction of actual engineering and disaster alarm.
For achieving the above object, the utility model adopts following technical proposals:
No filling-type Karst cave or karst piping system in a kind of layer during similar model test, comprise test-bed, be equipped with the several layers analog material in the test-bed, excavation has the tunnel in the analog material, be provided with in the analog material and have or not filling-type Karst cave or karst pipeline, waterproof resin molding bag is arranged in no filling-type Karst cave or the karst pipeline, and waterproof resin molding bag is connected by the water pump of water inlet pipe and water outlet pipe with the test-bed outside.
Described test-bed is the transparent stand of rigidity.
Analog material in the utility model and waterproof resin molding bag are existing thing, do not repeat them here.
The utility model is according to no filling-type Karst cave in the actual engineering or karst pipe shape, after converting by ratio of similitude, and with prefabricated no filling-type Karst cave of the good rock salt of solubility or karst pipeline, and at the waterproof resin molding bag of outer environmental sealing; When analog material is laid, rock salt precast body and film bag are imbedded no filling-type Karst cave or karst pipeline relevant position in the actual engineering together; After material-paving finishes, water filling dissolving rock salt precast body, and extract rock salt solution out, and produce negative pressure, resin molding bag and analog material are broken away from, thereby successfully constructed no filling-type Karst cave or karst pipeline in the model test.
The utility model has been studied no filling-type Karst cave or karst piping system and method for embedding in the model test, has solved burying underground and problem of modelling of no filling-type Karst cave or karst pipeline.To not have filling-type Karst cave or karst pipeline and imbed in the model test analog material, and compare with forefathers' research, more approaching with engineering practice, the geomechanics likeness in form model investigation achievement scope of application that is drawn is wider.
The utility model has solved in the model test no filling-type Karst cave or karst pipe configuration and has buried problem underground, has the following advantages:
1, can the success will not have filling-type Karst cave or the karst pipeline is imbedded scale model;
2, after the rock salt dissolving, extract solution out, hole wall film bag can break away from analog material, thus the hole wall coincide in formation and the actual engineering no filling-type Karst cave or karst pipeline;
3, can guarantee that analog material successfully lays, in the material-paving process, be unlikely to produce landslide, so that can not in scale model, form no filling-type Karst cave or karst pipeline in no filling-type Karst cave or karst pipeline place.
4, can simulate no filling-type Karst cave or reaction of karst pipeline construction process mechanics and deformation rule etc. under excavation or other factor affecting.
Description of drawings
Fig. 1 is the utility model structural representation;
1. analog material end faces wherein; 2. water inlet pipe and water outlet pipe; 3. test-bed; 4. tunnel (lane) road; 5. analog material; 6. water pump does not 7. have filling-type Karst cave or karst pipeline.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, no filling-type Karst cave or karst piping system in a kind of layer during similar model test, comprise test-bed 3, be equipped with several layers analog material 5 in the test-bed 3, excavation has tunnel 4 in the analog material 5, setting has or not filling-type Karst cave or karst pipeline 7 in the analog material 5, and waterproof resin molding bag is arranged in no filling-type Karst cave or the karst pipeline 7, and waterproof resin molding bag is connected with the water pump 6 of test-bed 3 outsides by water inlet pipe and water outlet pipe 2.
Described test-bed 3 is the transparent stand of rigidity.
The method for embedding of no filling-type Karst cave or karst piping system in a kind of layer during similar model test may further comprise the steps:
A. lay analog material 5, analog material 5 is laid according to the layering in test-bed 3 of rock soil mass intensity in the engineering background, and can be laid by actual rock-soil layer inclination angle;
B. imbed the rock salt precast body, when analog material 5 is routed to no filling-type Karst cave or karst pipeline 7 positions, with by the solvable rock salt prefabricated no filling-type Karst cave or the karst pipeline 7 that form reservation shape the imbedding in analog material of waterproof resin molding bag of outermost layer for sealing, continue then to lay go up the overlying strata soil phase like material layer until arriving predetermined analog material end face 1 position;
C. the excavation in tunnel 4, lay by normal ground analog material layer earlier 4 positions, tunnel, excavates in the later stage process of the test;
D. there is not the preparation of filling-type Karst cave or karst pipeline 7, later stage is dissolved solvable rock salt precast body by water pump 6 water filling in waterproof resin molding bag, and extraction dissolving back solution, and generation negative pressure, waterproof resin molding bag and analog material 5 are broken away from, can form no filling-type Karst cave or karst pipeline 7, can guarantee in analog material 5 compacting processes, do not produce landslide in no filling-type Karst cave or karst pipeline 7 places, empty inside, solution extraction back is only deposited a weight and volume and can be ignored the resin molding bag, does not influence the layer during similar model test conclusion.
Claims (2)
1. no filling-type Karst cave or karst piping system in the layer during similar model test, comprise test-bed, it is characterized in that: be equipped with the several layers analog material in the test-bed, excavation has the tunnel in the analog material, be provided with in the analog material and have or not filling-type Karst cave or karst pipeline, waterproof resin molding bag is arranged in no filling-type Karst cave or the karst pipeline, and waterproof resin molding bag is connected by the water pump of water inlet pipe and water outlet pipe with the test-bed outside.
2. no filling-type Karst cave or karst piping system in the layer during similar model test according to claim 1 is characterized in that: described test-bed is the transparent stand of rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200308905U CN201464277U (en) | 2009-08-05 | 2009-08-05 | Filling-free type cavern or karst pipeline system in similar model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200308905U CN201464277U (en) | 2009-08-05 | 2009-08-05 | Filling-free type cavern or karst pipeline system in similar model test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464277U true CN201464277U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2009200308905U Expired - Lifetime CN201464277U (en) | 2009-08-05 | 2009-08-05 | Filling-free type cavern or karst pipeline system in similar model test |
Country Status (1)
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| CN (1) | CN201464277U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644632B (en) * | 2009-08-05 | 2011-04-13 | 山东大学 | Filler-free type karst cave or karst pipeline system in similar model test and embedding method thereof |
| CN107144471A (en) * | 2017-05-19 | 2017-09-08 | 山东大学 | A kind of pressure-bearing solution cavity Water hydraulic static pressure loading sealing device and method for model test |
| CN107989618A (en) * | 2017-11-27 | 2018-05-04 | 河南工业大学 | A kind of natural arch simulator |
| CN109813607A (en) * | 2018-12-28 | 2019-05-28 | 重庆大学 | The device of prefabricated hole in a kind of fracture-cavity type carbonate object mould crushing test |
| CN113252872A (en) * | 2021-04-25 | 2021-08-13 | 浙江大学 | Rock slope model non-stop excavation method for centrifuge test |
| CN113376354A (en) * | 2020-02-25 | 2021-09-10 | 中国石油化工股份有限公司 | Method for simulating karst caves in different filling states and physical simulation test system |
-
2009
- 2009-08-05 CN CN2009200308905U patent/CN201464277U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644632B (en) * | 2009-08-05 | 2011-04-13 | 山东大学 | Filler-free type karst cave or karst pipeline system in similar model test and embedding method thereof |
| CN107144471A (en) * | 2017-05-19 | 2017-09-08 | 山东大学 | A kind of pressure-bearing solution cavity Water hydraulic static pressure loading sealing device and method for model test |
| CN107989618A (en) * | 2017-11-27 | 2018-05-04 | 河南工业大学 | A kind of natural arch simulator |
| CN109813607A (en) * | 2018-12-28 | 2019-05-28 | 重庆大学 | The device of prefabricated hole in a kind of fracture-cavity type carbonate object mould crushing test |
| CN113376354A (en) * | 2020-02-25 | 2021-09-10 | 中国石油化工股份有限公司 | Method for simulating karst caves in different filling states and physical simulation test system |
| CN113252872A (en) * | 2021-04-25 | 2021-08-13 | 浙江大学 | Rock slope model non-stop excavation method for centrifuge test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100512 Effective date of abandoning: 20090805 |