CN101625289A - Hidden water body or water filling karst pipe system in similar model test and embedding method thereof - Google Patents
Hidden water body or water filling karst pipe system in similar model test and embedding method thereof Download PDFInfo
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- CN101625289A CN101625289A CN200910017560A CN200910017560A CN101625289A CN 101625289 A CN101625289 A CN 101625289A CN 200910017560 A CN200910017560 A CN 200910017560A CN 200910017560 A CN200910017560 A CN 200910017560A CN 101625289 A CN101625289 A CN 101625289A
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Abstract
The invention relates to a hidden water body or water filling karst pipe system in a similar model test, comprising a test stand frame. The test stand frame is internally paved with a plurality of layers of similar materials; tunnels are tunneled in the similar materials; the similar materials are internally provided with a hidden water body or a water filling karst pipe; the hidden water body or water filling karst pipe is connected with a pressure pump at the external part of the test stand by a water inlet pipe and water outlet pipe; and the pressure pump is connected with a control device. Simultaneously, the invention also discloses an embedding method of the system. The invention researches the hidden water body or water filling karst pipe system in the similar model test and the embedding method thereof, and solves the problem for embedding and simulating the hidden water body or water filling karst pipe. Compared with the research of former researchers, the hidden water body or water filling karst pipe is embedded into the similar materials of the model test., thereby being more near engineering practice and an obtained water burst theoretical research result have a wider application range.
Description
Technical field
The present invention relates to a kind of geomechanics field, latent water body or water-filling karst piping system and method for embedding 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 gushing water research work, but also has tangible weakness, when making the basic model of gushing water 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 latent water body or water-filling karst pipeline.
Summary of the invention
The objective of the invention 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, lie concealed water body or water-filling karst piping system and method for embedding in research work progress mechanics, landslide and the surrouding rock deformation rule, the safe construction that helps actual engineering and the layer during similar model test of disaster alarm.
For achieving the above object, the present invention adopts following technical proposals:
Latent water body or water-filling 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 latent water body or water-filling karst pipeline in the analog material, latent water body or water-filling karst pipeline are connected by the force (forcing) pump of water inlet pipe and water outlet pipe with the test-bed outside, and force (forcing) pump is connected with control device.
Described test-bed is the transparent stand of rigidity.
The method for embedding of latent water body or water-filling karst piping system in a kind of layer during similar model test may further comprise the steps:
A. lay analog material, analog material is laid according to the layering in test-bed 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 is routed to latent water body or karst pipeline position, to imbed in the analog material by prefabricated latent water body or the karst pipeline that forms reservation shape of solvable rock salt, continue to lay go up then the overlying strata soil phase like material layer until arriving the precalculated position;
C. the excavation in tunnel, lay by normal ground analog material layer earlier the position, tunnel, excavates in the later stage process of the test;
The preparation of D. latent water body or karst pipeline, later stage is dissolved solvable rock salt precast body by force (forcing) pump water filling in solvable rock salt precast body, and extraction rock salt solution, then with force (forcing) pump water filling pressurization, thereby latent water body or water-filling karst pipeline in the model test have successfully been constructed, can guarantee in analog material compacting process, not produce landslide at latent water body or water-filling karst pipeline place, and by latent water body or karst pipeline hydraulic condition in control device and the force (forcing) pump control analog material.
Analog material and control device among the present invention are prior art, do not repeat them here.
The present invention is according to latent water body in the actual engineering or water-filling karst pipe shape, after the ratio of similitude conversion, with prefabricated latent water body of the good rock salt of solubility or water-filling karst pipeline; When analog material is laid, the rock salt precast body is imbedded latent water body or water-filling karst pipeline relevant position in the actual engineering; After material-paving finishes, water filling dissolving rock salt precast body, and extract rock salt solution out, then with force (forcing) pump water filling pressurization, thereby successfully constructed latent water body or water-filling karst pipeline in the model test; Force (forcing) pump has constant flow, unsteady flow amount and three gears of level pressure power to be selected, and matches with actual hydraulic boundary conditions in the engineering; Constant flow control can guarantee force (forcing) pump with constant flow to latent water body or the water filling of water-filling karst pipe interior; The control of unsteady flow amount can guarantee by unsteady flow discharge curve (being obtained through the ratio of similitude conversion by actual measurement unsteady flow discharge curve) to latent water body or the water filling of water-filling karst pipe interior; Level pressure power control can guarantee force (forcing) pump with constant compression force to latent water body or the water filling of water-filling karst pipe interior, it is constant promptly to lie concealed water body or water-filling karst pipe interior hydraulic pressure;
Before latent water body of the present invention or karst pipeline form, advance (going out) water pipe and force (forcing) pump can be intermittently water filling and drawing water in model, thereby latent water body of dissolving or karst pipe prefabrication body form and lie concealed water body or karst pipeline in the model; After latent water body or karst pipeline formed, control device and force (forcing) pump can pass through constant flow, unsteady flow amount or three latent water bodys of gear control of level pressure power or water-filling karst pipeline hydraulic condition, via advancing the water filling in latent water body or karst pipeline of (going out) water pipe.
The present invention has studied the embedded device and the method for lying concealed water body or water-filling karst pipeline in the model test, has solved burying underground and problem of modelling of latent water body or water-filling karst pipeline.To lie concealed water body or water-filling karst pipeline is imbedded in the model test analog material, and compare with forefathers' research, more approaching with engineering practice, the gushing water theoretical research result scope of application that is drawn is wider.
The invention solves and lie concealed water body and water-filling karst pipe configuration in the model test and bury problem underground, have the following advantages:
1, can the success will lie concealed water body or water-filling karst pipeline is imbedded scale model;
2, latent water body or water-filling karst pipeline coincide in hole wall and the actual engineering;
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 and lie concealed water body or water-filling karst pipeline at latent water body or water-filling karst pipeline place;
4, control device can be according to engineering background and simulation needs, by latent water body or karst pipeline hydraulic condition (constant flow, unsteady flow amount or level pressure power) in the force (forcing) pump control analog material, wherein, flow curve or pressure condition can convert according to engineering measurement data and similarity theory and obtain.
Description of drawings
Fig. 1 is a structural representation of the present invention;
1. analog material end faces wherein; 2. water inlet pipe and water outlet pipe; 3. test-bed; 4. latent water body or water-filling karst pipeline; 5. tunnel (lane) road; 6. analog material; 7. force (forcing) pump, 8. control device,
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Among Fig. 1, latent water body or water-filling karst piping system in a kind of layer during similar model test, comprise test-bed 3, be equipped with several layers analog material 6 in the test-bed 3, excavation has tunnel (lane) road 5 in the analog material 6,6 are provided with latent water body or water-filling karst pipeline 4 in the analog material, and latent water body or water-filling karst pipeline 4 are connected with the force (forcing) pump 7 of test-bed 3 outsides by water inlet pipe and water outlet pipe 2, and force (forcing) pump 7 is connected with control device 8.
Described test-bed 3 is the transparent stand of rigidity.
The method for embedding of latent water body or water-filling karst piping system in a kind of layer during similar model test may further comprise the steps:
A. lay analog material 6, analog material 6 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 6 is routed to latent water body or karst pipeline 4 positions, to bury 4 by prefabricated latent water body that forms reservation shape of solvable rock salt or karst pipeline and go in the analog material, 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 5, lay by normal ground analog material layer earlier 5 positions, tunnel, excavates in the later stage process of the test;
The preparation of D. latent water body or karst pipeline 4, later stage is dissolved solvable rock salt precast body by force (forcing) pump 7 water filling in solvable rock salt precast body, and extraction rock salt solution, then with force (forcing) pump 7 water fillings pressurization, thereby latent water body or water-filling karst pipeline 4 in the model test have successfully been constructed, can guarantee in analog material 6 compacting processes, do not produce landslide at latent water body or water-filling karst pipeline 6 places, and by latent water body or karst pipeline 4 hydraulics in control device 8 and the force (forcing) pump 7 control analog materials 6.
Claims (3)
1. lie concealed water body or water-filling karst piping system in a 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 latent water body or water-filling karst pipeline in the analog material, latent water body or water-filling karst pipeline are connected by the force (forcing) pump of water inlet pipe and water outlet pipe with the test-bed outside, and force (forcing) pump is connected with control device.
2. latent water body or water-filling karst piping system in the layer during similar model test according to claim 1, it is characterized in that: described test-bed is the transparent stand of rigidity.
3. the method for embedding of latent water body or water-filling karst piping system in the layer during similar model test is characterized in that, may further comprise the steps:
A. lay analog material, analog material is laid according to the layering in test-bed 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 is routed to latent water body or karst pipeline position, to imbed in the analog material by prefabricated latent water body or the karst pipeline that forms reservation shape of solvable rock salt, continue to lay go up then the overlying strata soil phase like material layer until arriving the precalculated position;
C. the excavation in tunnel, lay by normal ground analog material layer earlier the position, tunnel, excavates in the later stage process of the test;
The preparation of D. latent water body or karst pipeline, later stage is dissolved solvable rock salt precast body by force (forcing) pump water filling in solvable rock salt precast body, and extraction rock salt solution, then with force (forcing) pump water filling pressurization, thereby latent water body or water-filling karst pipeline in the model test have successfully been constructed, can guarantee in analog material compacting process, not produce landslide at latent water body or water-filling karst pipeline place, and by latent water body or karst pipeline hydraulic condition in control device and the force (forcing) pump control analog material.
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| CN2009100175607A CN101625289B (en) | 2009-08-05 | 2009-08-05 | Hidden water body or water filling karst pipe system in similar model test and embedding method thereof |
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| CN2009100175607A CN101625289B (en) | 2009-08-05 | 2009-08-05 | Hidden water body or water filling karst pipe system in similar model test and embedding method thereof |
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| CN101625289A true CN101625289A (en) | 2010-01-13 |
| CN101625289B CN101625289B (en) | 2011-03-16 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101922303A (en) * | 2010-08-30 | 2010-12-22 | 中铁第四勘察设计院集团有限公司 | Method for treating tunnel passing through underground river karst hall |
| CN101985883A (en) * | 2010-08-30 | 2011-03-16 | 中铁第四勘察设计院集团有限公司 | Cavern protection method |
| CN102393312A (en) * | 2011-08-23 | 2012-03-28 | 刘元雪 | Side slope tunnel coupling simulation test system and application method thereof |
| CN103335989A (en) * | 2013-06-16 | 2013-10-02 | 桂林理工大学 | Method for simulating transportation and destination of pollutants in karst underground river |
| CN104215425A (en) * | 2014-08-22 | 2014-12-17 | 山东大学 | Filled karst pipeline system and manufacturing and refilling methods thereof |
| CN104792966A (en) * | 2015-04-08 | 2015-07-22 | 西南交通大学 | Testing device and method for simulating stratum cavities caused by subway shield tunnel construction |
| CN104833537A (en) * | 2015-02-17 | 2015-08-12 | 北京交通大学 | Similarity model test apparatus for simulating tunnel construction |
| CN104833538A (en) * | 2015-02-17 | 2015-08-12 | 北京交通大学 | Similarity model test method for simulating tunnel construction |
| CN108166538A (en) * | 2017-12-20 | 2018-06-15 | 河北建设勘察研究院有限公司 | Pass through the ultimate bearing capacity model assay systems and test method of shaped corroded cave model foundation pile model |
| CN113776774A (en) * | 2021-08-31 | 2021-12-10 | 中交一公局第八工程有限公司 | Model device for simulating interaction between karst and tunnel |
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| CN100559215C (en) * | 2006-03-17 | 2009-11-11 | 山东科技大学 | Mine water-bursting predicting system based on information fusion |
| CN201037819Y (en) * | 2007-04-20 | 2008-03-19 | 中国矿业大学 | Experimental device for loose confined aquifer load transmission action |
| CN101308126B (en) * | 2008-06-11 | 2012-03-21 | 中南大学 | Offshore mining top board seepage flow sudden inflow test method and device |
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2009
- 2009-08-05 CN CN2009100175607A patent/CN101625289B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985883A (en) * | 2010-08-30 | 2011-03-16 | 中铁第四勘察设计院集团有限公司 | Cavern protection method |
| CN101922303B (en) * | 2010-08-30 | 2012-05-09 | 中铁第四勘察设计院集团有限公司 | Method for treating tunnel passing through underground river karst hall |
| CN101985883B (en) * | 2010-08-30 | 2013-09-04 | 中铁第四勘察设计院集团有限公司 | Cavern protection method |
| CN101922303A (en) * | 2010-08-30 | 2010-12-22 | 中铁第四勘察设计院集团有限公司 | Method for treating tunnel passing through underground river karst hall |
| CN102393312A (en) * | 2011-08-23 | 2012-03-28 | 刘元雪 | Side slope tunnel coupling simulation test system and application method thereof |
| CN103335989B (en) * | 2013-06-16 | 2015-03-25 | 桂林理工大学 | Method for simulating transportation and destination of pollutants in karst underground river |
| CN103335989A (en) * | 2013-06-16 | 2013-10-02 | 桂林理工大学 | Method for simulating transportation and destination of pollutants in karst underground river |
| CN104215425A (en) * | 2014-08-22 | 2014-12-17 | 山东大学 | Filled karst pipeline system and manufacturing and refilling methods thereof |
| CN104215425B (en) * | 2014-08-22 | 2016-08-31 | 山东大学 | A kind of re-fill method of packed type karst passage system |
| CN104833537A (en) * | 2015-02-17 | 2015-08-12 | 北京交通大学 | Similarity model test apparatus for simulating tunnel construction |
| CN104833538A (en) * | 2015-02-17 | 2015-08-12 | 北京交通大学 | Similarity model test method for simulating tunnel construction |
| CN104792966A (en) * | 2015-04-08 | 2015-07-22 | 西南交通大学 | Testing device and method for simulating stratum cavities caused by subway shield tunnel construction |
| CN108166538A (en) * | 2017-12-20 | 2018-06-15 | 河北建设勘察研究院有限公司 | Pass through the ultimate bearing capacity model assay systems and test method of shaped corroded cave model foundation pile model |
| CN113776774A (en) * | 2021-08-31 | 2021-12-10 | 中交一公局第八工程有限公司 | Model device for simulating interaction between karst and tunnel |
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| CN101625289B (en) | 2011-03-16 |
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