CN104251807A - Determination device of seepage water pressure of fracture medium in different seepage paths - Google Patents
Determination device of seepage water pressure of fracture medium in different seepage paths Download PDFInfo
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- CN104251807A CN104251807A CN201310269126.4A CN201310269126A CN104251807A CN 104251807 A CN104251807 A CN 104251807A CN 201310269126 A CN201310269126 A CN 201310269126A CN 104251807 A CN104251807 A CN 104251807A
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Abstract
The invention belongs to the technical field of fracture medium seepage, and specifically relates to a determination device of seepage water pressure of a fracture medium in different seepage paths. The device comprises a platform, water inlet pipes, water outlet pipes, pressure detecting tubes and seepage water pressure sensors, the platform is a cube with a certain thickness, and is placed on the upper surface of a to-be-detected fracture medium; the water inlet pipes, the water outlet pipes and a plurality of pressure detecting tubes are arranged in the platform, and are uncrossed with each other; the water inlet pipes and the water outlet pipes are pipes with both ends opened, one ends of the water inlet pipes and one ends of the water outlet pipes are located on the contact surface of the platform and the to-be-detected fracture medium; the pressure detecting tubes are pipes with one ends opened, the opened ends are located on the contact surface of the platform and the to-be-detected fracture medium; and the opened ends of the pressure detecting tubes are provided with the seepage water pressure sensors. The device can be used for real-time and field measurement of the seepage water pressure of the fracture medium in different seepage paths, and accurate seepage water pressure of the fracture medium at different seepage flow section observation location points can be obtained.
Description
Technical field
The invention belongs to fissuted medium seepage flow technical field, be specifically related to a kind of fissuted medium different percolation path infiltration hydraulic pressure determinator.
Background technology
Fissuted medium seepage research belongs to the research category of fissuted medium basic mechanical characteristic, particularly in research Single Fracture situation, the Penetration Signature of fissuted medium is particularly important, and it plays basic directive function for the Penetration Signature research of fissuted medium in Fracture Networks situation.For the quasi-brittle material of rock type containing crack, permeance property is the key factor determining engineering rock mass long-term safety.The permeability parameters of evaluation engineering rock mass long-time stability is obtained when fluid enters by monitoring crack rock, particularly monitor this fissuted medium surface at the infiltration hydraulic pressure not in the same time, under different percolation path, its Penetration Signature for research fissuted medium has vital meaning.
The existing device for fissuted medium infiltration hydraulic pressure mensuration, its object measured is fissuted medium self, the infiltration hydraulic pressure that it records reflects the level of interpenetration of this fissuted medium under whole percolation path, the mensuration that fissuted medium permeates hydraulic pressure under different permeation pathway can not be realized, be inaccurate when causing the permeability parameters obtained to apply in engineering, the change of a certain infiltration section Penetration Signature can not be reflected, affect the science of measurement result practical application; In addition, existing most of infiltration water compression testing device is only applicable to the situation of cylinder specimen permeability test test.Therefore, how realizing mensuration that fissuted medium permeates hydraulic pressure under different percolation path is this area technical matters urgently to be resolved hurrily.
Summary of the invention
The technical issues that need to address of the present invention are: fissuted medium infiltration hydraulic pressure determinator of the prior art is difficult to measure the infiltration hydraulic pressure of fissuted medium at different seepage flow section observation anchor point place.
Technical scheme of the present invention is as described below:
A kind of fissuted medium different percolation path infiltration hydraulic pressure determinator, comprising: platform, water inlet pipe, rising pipe, piezometric tube and infiltration water pressure sensor, described platform is for having certain thickness cube, and it is positioned over fissuted medium upper surface to be measured; Water inlet pipe, rising pipe and several piezometric tube are arranged on platform interior non-crossly: water inlet pipe and rising pipe are the pipeline of both ends open, and one end of water inlet pipe and one end of rising pipe are positioned on the surface of contact of platform and fissuted medium to be measured; Piezometric tube is the pipeline that one end opens, and its open one end is positioned on the surface of contact of platform and fissuted medium to be measured, and piezometric tube open end is provided with infiltration water pressure sensor.
Preferably:
Described platform sectional dimension is greater than the sectional dimension of fissuted medium to be measured.
Described water inlet pipe, rising pipe and piezometric tube, all in inversion " L " shape, include the vertical port of the horizontal port that is positioned at platform left/right side and surface of contact that is downward, that be positioned at platform and fissuted medium to be measured; Wherein, described inversion " L " shape piezometric tube is made up of the vertical piezometric tube communicated and horizontal piezometric tube, and the vertical piezometric tube length of different piezometric tube is different; Water inlet pipe, rising pipe are with vertically piezometric tube pipeline aperture is identical.
As further preferred version:
This fissuted medium different percolation path infiltration hydraulic pressure determinator comprises 5 water inlet pipes, 5 rising pipes and 25 piezometric tube, and the vertical port of water inlet pipe, rising pipe and piezometric tube is that 5 row 7 column matrix shapes are evenly distributed on the surface of contact of platform and fissuted medium to be measured: 5 water inlet pipes are distributed in the 1st and arrange; 5 rising pipes are distributed in the 7th row; Piezometric tube is distributed in 2nd ~ 6 row.
Described platform surface roughness is preferably less than or equal to 1.6; Enter described water pipe, rising pipe and piezometric tube surfaceness and be preferably all less than or equal to 3.2.
Beneficial effect of the present invention is:
(1) a kind of fissuted medium of the present invention different percolation path infiltration hydraulic pressure determinator, can in real time, the infiltration hydraulic pressure of field survey fissuted medium under different percolation path, obtain the accurate infiltration hydraulic pressure of fissuted medium at different seepage flow section observation anchor point place;
(2) a kind of fissuted medium of the present invention different percolation path infiltration hydraulic pressure determinator, by infiltration water pressure sensor, can obtain the infiltration coefficient in different percolation path length, different water pressure situation;
(3) a kind of fissuted medium of the present invention different percolation path infiltration hydraulic pressure determinator, easy to operate, measure convenient, and measurement result accurately and reliably, is particularly suitable for the permeance property test of rock, coagulation great soil group quasi-brittle material.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention structural representation;
Fig. 2 is Fig. 1 lower surface configuration schematic diagram.
In figure, 1-platform, the horizontal piezometric tube of 2-, the vertical piezometric tube of 3-, 4-water inlet pipe, 5-rising pipe, 6-infiltration water pressure sensor.
Embodiment
Below in conjunction with drawings and Examples, a kind of fissuted medium of the present invention different percolation path infiltration hydraulic pressure determinator is described in detail.
A kind of fissuted medium different percolation path infiltration hydraulic pressure determinator of the present embodiment, comprising: platform 1, water inlet pipe 4, rising pipe 5, piezometric tube and infiltration water pressure sensor 6.Wherein, described platform 1 is for having certain thickness cube, and it is positioned over fissuted medium upper surface to be measured; It is inner that water inlet pipe 4, rising pipe 5 and several piezometric tube are arranged on platform 1 non-crossly: water inlet pipe 4 and rising pipe 5 are the pipeline of both ends open, and one end of water inlet pipe 4 and one end of rising pipe 5 are positioned at platform 1 with on the surface of contact of fissuted medium to be measured; Piezometric tube is the pipeline that one end opens, and its open one end is positioned at platform 1 with on the surface of contact of fissuted medium to be measured, and piezometric tube open end is provided with infiltration water pressure sensor 6.
Described platform 1 is positioned over fissuted medium upper surface to be measured, and the two surface of contact forms gap, crack.Wherein, the sectional dimension of platform 1 is greater than the sectional dimension of fissuted medium to be measured; Platform 1 surfaceness is less than or equal to 1.6.
As shown in Figure 1, the water inlet pipe 4 in the present embodiment, rising pipe 5 and piezometric tube, all in inversion " L " shape, include the horizontal port that is positioned at platform 1 left/right side and vertical port that is downward, that be positioned at platform 1 and the surface of contact of fissuted medium to be measured.Wherein, described inversion " L " shape piezometric tube is made up of the vertical piezometric tube 3 communicated and horizontal piezometric tube 2, and vertical piezometric tube 3 length of different piezometric tube is different; Water inlet pipe 4, rising pipe 5 are with vertically piezometric tube 3 pipeline aperture is identical.Water inlet pipe 4, rising pipe 5 and piezometric tube surfaceness are all less than or equal to 3.2.
The fissuted medium different percolation path infiltration hydraulic pressure determinator of the present embodiment, comprises 5 water inlet pipes, 4,5 rising pipes 5 and 25 piezometric tube.As shown in Figure 2, the vertical port of water inlet pipe 4, rising pipe 5 and piezometric tube is that 5 row 7 column matrix shapes are evenly distributed on platform 1 with on the surface of contact of fissuted medium to be measured: 5 water inlet pipes 4 are distributed in the 1st and arrange; 5 rising pipes 5 are distributed in the 7th row; Piezometric tube is distributed in 2nd ~ 6 row.
When the fissuted medium different percolation path infiltration hydraulic pressure determinator of the present embodiment works: platform 1 is positioned over fissuted medium upper surface to be measured, current inject from water inlet pipe 4, flow out from rising pipe 5, by the water flow collection device be connected with rising pipe 5, the infiltration test parameterss such as the flow velocity of acquisition outflow current and flow; By the numerical value that the infiltration water pressure sensor 6 of installing below different piezometric tube records, obtain the infiltration coefficient of the percolation path corresponding to different piezometric tube.
Claims (5)
1. a fissuted medium different percolation path infiltration hydraulic pressure determinator, comprise: platform (1), water inlet pipe (4), rising pipe (5), piezometric tube and infiltration water pressure sensor (6), it is characterized in that: described platform (1) is for having certain thickness cube, and it is positioned over fissuted medium upper surface to be measured; It is inner that water inlet pipe (4), rising pipe (5) and several piezometric tube are arranged on platform (1) non-crossly: the pipeline that water inlet pipe (4) and rising pipe (5) are both ends open, and one end of water inlet pipe (4) and one end of rising pipe (5) are positioned at platform (1) with on the surface of contact of fissuted medium to be measured; Piezometric tube is the pipeline that one end opens, and its open one end is positioned at platform (1) with on the surface of contact of fissuted medium to be measured, and piezometric tube open end is provided with infiltration water pressure sensor (6).
2. a kind of fissuted medium according to claim 1 different percolation path infiltration hydraulic pressure determinator, is characterized in that: described platform (1) sectional dimension is greater than the sectional dimension of fissuted medium to be measured.
3. a kind of fissuted medium according to claim 1 and 2 different percolation path infiltration hydraulic pressure determinator, it is characterized in that: described water inlet pipe (4), rising pipe (5) and piezometric tube, all in inversion " L " shape, include the horizontal port that is positioned at platform (1) left/right side and vertical port that is downward, that be positioned at platform (1) and the surface of contact of fissuted medium to be measured; Wherein, described inversion " L " shape piezometric tube is made up of the vertical piezometric tube (3) communicated and horizontal piezometric tube (2), and vertical piezometric tube (3) length of different piezometric tube is different; Water inlet pipe (4), rising pipe (5) are identical with vertical piezometric tube (3) pipeline aperture.
4. a kind of fissuted medium according to claim 3 different percolation path infiltration hydraulic pressure determinator, it is characterized in that: this fissuted medium different percolation path infiltration hydraulic pressure determinator comprises 5 water inlet pipes (4), 5 rising pipes (5) and 25 piezometric tube, the vertical port of water inlet pipe (4), rising pipe (5) and piezometric tube is that 5 row 7 column matrix shapes are evenly distributed on platform (1) with on the surface of contact of fissuted medium to be measured: 5 water inlet pipes (4) are distributed in the 1st and arrange; 5 rising pipes (5) are distributed in the 7th row; Piezometric tube is distributed in 2nd ~ 6 row.
5. a kind of fissuted medium according to claim 1 and 2 different percolation path infiltration hydraulic pressure determinator, is characterized in that: described platform (1) surfaceness is less than or equal to 1.6; Enter described water pipe, rising pipe (5) and piezometric tube surfaceness and be all less than or equal to 3.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310269126.4A CN104251807B (en) | 2013-06-28 | 2013-06-28 | Determination device of seepage water pressure of fracture medium in different seepage paths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310269126.4A CN104251807B (en) | 2013-06-28 | 2013-06-28 | Determination device of seepage water pressure of fracture medium in different seepage paths |
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| CN104251807A true CN104251807A (en) | 2014-12-31 |
| CN104251807B CN104251807B (en) | 2017-01-25 |
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| CN201310269126.4A Active CN104251807B (en) | 2013-06-28 | 2013-06-28 | Determination device of seepage water pressure of fracture medium in different seepage paths |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672493A (en) * | 2019-10-23 | 2020-01-10 | 哈尔滨工业大学 | Method for extracting microscopic seepage path of asphalt mixture |
| CN111366520A (en) * | 2020-04-01 | 2020-07-03 | 山东科技大学 | Test system and method for distinguishing water guide dominant channel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07270300A (en) * | 1994-03-29 | 1995-10-20 | Tetsuo Shoji | Method for evaluating water penetration property of underground rock |
| CN201298013Y (en) * | 2008-11-27 | 2009-08-26 | 山东科技大学 | Rock pervasion experiment pressure head based on servo test system |
| CN101871876A (en) * | 2010-06-09 | 2010-10-27 | 中国矿业大学 | Visible multifunctional fracture seepage simulation test bench |
-
2013
- 2013-06-28 CN CN201310269126.4A patent/CN104251807B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07270300A (en) * | 1994-03-29 | 1995-10-20 | Tetsuo Shoji | Method for evaluating water penetration property of underground rock |
| CN201298013Y (en) * | 2008-11-27 | 2009-08-26 | 山东科技大学 | Rock pervasion experiment pressure head based on servo test system |
| CN101871876A (en) * | 2010-06-09 | 2010-10-27 | 中国矿业大学 | Visible multifunctional fracture seepage simulation test bench |
Non-Patent Citations (2)
| Title |
|---|
| JANA K. LEVISON ET AL.: ""Rapid transport from the surface to wells in fractured rock: A unique infiltration tracer experiment"", 《JOURNAL OF CONTAMINANT HYDROLOGY》 * |
| 盛金昌 等: ""流固化学耦合作用下裂隙岩体渗透特性研究进展"", 《岩土工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672493A (en) * | 2019-10-23 | 2020-01-10 | 哈尔滨工业大学 | Method for extracting microscopic seepage path of asphalt mixture |
| CN110672493B (en) * | 2019-10-23 | 2022-03-29 | 哈尔滨工业大学 | Method for extracting microscopic seepage path of asphalt mixture |
| CN111366520A (en) * | 2020-04-01 | 2020-07-03 | 山东科技大学 | Test system and method for distinguishing water guide dominant channel |
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| CN104251807B (en) | 2017-01-25 |
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