CN216517970U - Survey stage drilling internal measurement tunnel external water pressure device - Google Patents
Survey stage drilling internal measurement tunnel external water pressure device Download PDFInfo
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- CN216517970U CN216517970U CN202122893139.1U CN202122893139U CN216517970U CN 216517970 U CN216517970 U CN 216517970U CN 202122893139 U CN202122893139 U CN 202122893139U CN 216517970 U CN216517970 U CN 216517970U
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Abstract
The utility model relates to the technical field of geological exploration, in particular to a device for measuring the water pressure outside a tunnel in a drilled hole based on an exploration stage, which is characterized by comprising a vertical exploration hole, wherein the lower end of the exploration hole extends to the periphery of the section of a to-be-built tunnel; the box body is provided with a filling injection hole and can be filled with filling substances to form a sealing structure; the upper end of the box body is also connected with a bearing rope, and the upper end of the bearing rope extends upwards and is connected to the upper end of the exploration hole; the utility model has the characteristics of simple structure, capability of more accurately surveying and monitoring to obtain the water pressure outside the tunnel and more convenient operation and construction.
Description
Technical Field
The utility model relates to the technical field of geological survey, in particular to a device for measuring water pressure outside a tunnel in a drill hole based on a survey stage.
Background
The tunnel construction is a reasonable construction method from the viewpoint of rock mechanics, and is a new engineering construction method formed by adopting a system formed by a spray anchor technology, monitoring measurement and the like and a rock mechanics theory. Before tunnel construction, the water pressure outside the tunnel around the end face of the proposed tunnel is generally required to be surveyed and monitored so as to conveniently analyze and formulate a specific tunnel construction scheme through the obtained water pressure value, thereby improving the feasibility and the safety of construction.
The existing monitoring and calculating method for the water pressure outside the tunnel can be classified into the following five methods: a reduction coefficient method, a theoretical analytical method, an analytical numerical method, a hydrological geochemistry method, and a seepage theory analysis method. The species research method is based on empirical summary and theoretical research calculation, and the obtained tunnel external water pressure value always has a certain deviation from the actual condition, so that the reliability of the tunnel construction scheme made by the tunnel external water pressure analysis obtained by the method is checked.
Therefore, how to provide a simple structure, reconnaissance monitoring that can be more accurate obtains the outer water pressure of tunnel, can be more convenient operation construction based on reconnaissance stage borehole interior measurement outer water pressure of tunnel device, has become the technical problem that technical staff in the field awaited solution.
SUMMERY OF THE UTILITY MODEL
In view of the above defects in the prior art, the technical problem to be solved by the present invention is how to provide a device for measuring the water pressure outside a tunnel based on an investigation stage borehole, which has a simple structure, can obtain the water pressure outside the tunnel through more accurate investigation and monitoring, and can be operated and constructed more conveniently.
In order to achieve the purpose, the utility model provides a device for measuring the water pressure outside a tunnel in a drilled hole based on an exploration stage, which is characterized by comprising a vertical exploration hole, wherein the lower end of the exploration hole extends to the periphery of the section of a to-be-built tunnel; the box body is provided with a filling injection hole and can be filled with filling materials to form a sealing structure; the upper end of the box body is also connected with a bearing rope, and the upper end of the bearing rope extends upwards and is connected with the upper end of the exploration hole; an expansion layer is arranged on the outer circumferential surface of the box body, so that the expansion layer can expand after contacting with water and is attached to and supported on the inner circumferential wall of the exploration hole; and concrete is also injected into the upper end of the box body in the exploration hole.
Therefore, when the device is used, the exploration hole is drilled at the corresponding position, the lower end of the exploration hole correspondingly extends to the periphery of the end face of the proposed tunnel, and the detected data are more accurate and practical. Then wear out the hole of stepping down that the wire that carries box middle part to monitor upper end again for monitor just right be located the box body below, fill the filling material from filling the injection hole into in the box body again and will step down the hole sealedly with forming seal structure, later put into box body and monitor wholly from the reconnaissance hole again, and make the bearing rope upper end of connecting on the box body connect in order to inject the box body at the downthehole vertical depth of reconnaissance in reconnaissance hole. And then, the expansion layer outside the box body can expand after meeting water and is attached to and supported on the peripheral wall in the exploration hole, concrete is injected into the exploration hole, and finally the conducting wire is connected to an external data acquisition instrument. The device can monitor the external water pressure of the tunnel in the reconnaissance stage in real time, and has the advantages of more accurate monitoring and convenience in construction operation.
Preferably, the filling material is glass cement.
Like this, the packing material chooses for use glass to glue, can conveniently fill the construction to after filling, formation that can be better is sealed, and sealed effect is better.
Preferably, the expansion layer comprises one or more layers of water-stop adhesive tapes which are coated and arranged on the outer circumferential surface of the box body.
Like this, the inflation layer chooses for use the stagnant water sticky tape, and it meets water after can better inflation and paste with reconnaissance hole week wall.
As optimization, a horizontal supporting rod is arranged at the upper end of the exploration hole, and the upper end of the bearing rope is connected and arranged on the supporting rod.
Like this, through setting up the bracing piece, can be better fixed to bearing rope upper end. Furthermore, the bearing rope is steel rope or steel wire.
And optimally, the exploration holes extend to the two sides or the upper part of the section of the proposed tunnel.
Therefore, the exploration holes are extended to the two sides or the upper part of the section of the proposed tunnel, and the monitored data can be more accurate.
Preferably, the upper end of the box body is connected with a connecting ring, and the lower end of the bearing rope is connected to the connecting ring.
Therefore, the connection between the bearing rope and the box body is convenient, and the structure is simpler.
As optimization, the middle part of the end face of the lower end of the box body is connected with a vertically downward protection barrel, and the detection probe is positioned inside the protection barrel.
Thus, the detection probe can be protected by providing the protection tube.
Preferably, the outer circumferential surface of the protective cylinder is provided with a plurality of through holes which penetrate through the protective cylinder in the wall thickness direction.
Like this, set up the through-hole on the protection section of thick bamboo, hydroenergy can be better gets into, can improve and detect the precision.
Preferably, the lower end of the protective cylinder is provided with an end cover plate, and the end cover plate is provided with a plurality of through holes.
Like this, set up the end cover board can be better protect detecting probe.
Preferably, the detection probe is an osmometer.
Therefore, the osmometer can better detect and obtain the water pressure value. Furthermore, the grouting pump is adopted to inject concrete, and the grouting pipeline of the grouting pump is gradually moved upwards to improve the smoothness of the injected concrete while the concrete is injected.
To sum up, the device of above-mentioned structure can be more accurate reconnaissance monitoring obtain tunnel external water pressure to whole structure is convenient to be under construction, construction easy operation. And in construction operation, can also avoid the concrete to drop to the lower extreme and cause the influence to detecting.
Drawings
Fig. 1 is a schematic structural diagram in an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of a position a in fig. 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in figures 1 and 2, the device for measuring the water pressure outside the tunnel in the drilled hole based on the exploration stage comprises a vertical box body 3, a flat cylindrical structure is arranged at the lower end of an exploration hole 2, the lower end of the exploration hole extends to the periphery of the surface of a to-be-built tunnel 1, a monitoring probe 4 is arranged below the box body, an upward lead 5 is arranged at the upper end of the monitoring probe 4, penetrates out of a yielding hole formed in the middle of the box body and extends to the outer part of the upper end of the exploration hole, and is connected with a data acquisition instrument 6; the box body is provided with a filling injection hole and can be filled with filling materials to form a sealing structure; the upper end of the box body is also connected with a bearing rope 7, the upper end of the bearing rope extends upwards and is connected with the upper end of the exploration hole; an expansion layer 8 is also arranged on the outer circumferential surface of the box body, so that the expansion layer can expand after contacting with water and is attached to and supported on the inner circumferential wall of the exploration hole; and concrete 9 is injected into the upper end of the box body in the exploration hole
Therefore, when the device is used, the exploration hole is drilled at the corresponding position, the lower end of the exploration hole correspondingly extends to the periphery of the end face of the proposed tunnel, and the detected data are more accurate and practical. Then wear out the hole of stepping down that the wire that carries box middle part to monitor upper end again for monitor just right be located the box body below, fill the filling material from filling the injection hole into in the box body again and will step down the hole sealedly with forming seal structure, later put into box body and monitor wholly from the reconnaissance hole again, and make the bearing rope upper end of connecting on the box body connect in order to inject the box body at the downthehole vertical depth of reconnaissance in reconnaissance hole. And then, the expansion layer outside the box body can expand after meeting water and is attached to and supported on the peripheral wall in the exploration hole, concrete is injected into the exploration hole, and finally the conducting wire is connected to an external data acquisition instrument. The device can monitor the external water pressure of the tunnel in the reconnaissance stage in real time, and has the advantages of more accurate monitoring and convenience in construction operation.
In this embodiment, the filling material is glass cement 10
Like this, the packing material chooses for use glass to glue, can conveniently fill the construction to after filling, formation that can be better is sealed, and sealed effect is better.
In this embodiment, the expansion layer 8 includes one or more water-stop tapes covering the outer circumferential surface of the case.
Like this, the inflation layer chooses for use the stagnant water sticky tape, and it meets water after can better inflation and paste with reconnaissance hole week wall.
In the embodiment, the upper end of the horizontal support rod 11 arranged at the upper end of the exploration hole is connected and arranged on the support rod.
Like this, through setting up the bracing piece, can be better fixed to bearing rope upper end. Furthermore, the bearing rope is steel rope or steel wire.
In this embodiment, the exploration holes extend to the two sides or above the section of the proposed tunnel.
Therefore, the exploration holes are extended to the two sides or the upper part of the section of the proposed tunnel, and the monitored data can be more accurate.
In the embodiment, the upper end of the box body is connected with a connecting ring 12, and the lower end of the carrying rope is connected with the connecting ring.
Therefore, the connection between the bearing rope and the box body is convenient, and the structure is simpler.
In the specific embodiment, the middle part of the end face of the lower end of the box body is connected with a vertically downward protection barrel 13, and a detection probe is positioned inside the protection barrel.
Thus, the detection probe can be protected by providing the protection tube.
In this embodiment, the outer circumferential surface of the protective cylinder is provided with a plurality of through holes arranged in the wall thickness direction.
Like this, set up the through-hole on the protection section of thick bamboo, hydroenergy can be better gets into, can improve and detect the precision.
In this embodiment, the lower end of the protective cylinder is provided with an end cover plate 14, and the cover plate is provided with a plurality of through holes.
Like this, set up the end cover board can be better protect detecting probe.
In this embodiment, the detection probe is an osmometer.
Therefore, the osmometer can better detect and obtain the water pressure value. Furthermore, the grouting pump is adopted to inject concrete, and the grouting pipeline of the grouting pump is gradually moved upwards to improve the smoothness of the injected concrete while the concrete is injected.
To sum up, the device of above-mentioned structure can be more accurate reconnaissance monitoring obtain tunnel external water pressure to whole structure is convenient to be under construction, construction easy operation. And in construction operation, can also avoid the concrete to drop to the lower extreme and cause the influence to detecting.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A device for measuring the water pressure outside a tunnel in a drilled hole based on an exploration stage is characterized by comprising a vertical exploration hole, wherein the lower end of the exploration hole extends to the periphery of the section of a to-be-built tunnel, a box body with a flat cylindrical structure is arranged at the lower end of the exploration hole, a monitoring probe is arranged below the box body, an upward lead is arranged at the upper end of the monitoring probe, penetrates through a yielding hole in the middle of the box body and extends to the outside of the upper end of the exploration hole to be connected with a data acquisition instrument; the box body is provided with a filling injection hole and can be filled with filling materials to form a sealing structure; the upper end of the box body is also connected with a bearing rope, and the upper end of the bearing rope extends upwards and is connected to the upper end of the exploration hole; an expansion layer is arranged on the outer circumferential surface of the box body, so that the expansion layer can expand after contacting with water and is attached to and supported on the inner circumferential wall of the exploration hole; and concrete is also injected into the upper end of the box body in the exploration hole.
2. The device for measuring the water pressure outside the tunnel in the borehole based on the exploration phase as claimed in claim 1, wherein: the filling material is glass cement.
3. The apparatus for measuring the water pressure outside the tunnel in the borehole during the exploration phase according to claim 1, wherein: the expansion layer comprises one or more layers of water-stop adhesive tapes which are coated and arranged on the outer circumferential surface of the box body.
4. The device for measuring the water pressure outside the tunnel in the borehole based on the exploration phase as claimed in claim 1, wherein: the upper end of the exploration hole is provided with a horizontal supporting rod, and the upper end of the bearing rope is connected and arranged on the supporting rod.
5. The apparatus for measuring the water pressure outside the tunnel in the borehole during the exploration phase according to claim 1, wherein: the exploration holes extend to the two sides or the upper part of the section of the proposed tunnel.
6. The device for measuring the water pressure outside the tunnel in the borehole based on the exploration phase as claimed in claim 1, wherein: the upper end of the box body is connected with a connecting ring, and the lower end of the bearing rope is connected to the connecting ring.
7. The device for measuring the water pressure outside the tunnel in the borehole based on the exploration phase as claimed in claim 1, wherein: the middle part of the end face of the lower end of the box body is connected with a vertical protection cylinder which is arranged downwards, and the detection probe is positioned inside the protection cylinder.
8. The apparatus for measuring the water pressure outside the tunnel in the borehole during the exploration phase according to claim 7, wherein: the outer circumference of the protective cylinder is provided with a plurality of through holes which penetrate through the protective cylinder in the wall thickness direction.
9. The apparatus for measuring the water pressure outside the tunnel in the borehole during the exploration phase according to claim 8, wherein: an end cover plate is arranged at the lower end of the protective cylinder, and a plurality of through holes are arranged on the end cover plate.
10. The device for measuring the water pressure outside the tunnel in the borehole based on the exploration phase as claimed in claim 1, wherein: the monitoring probe is an osmometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122893139.1U CN216517970U (en) | 2021-11-23 | 2021-11-23 | Survey stage drilling internal measurement tunnel external water pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122893139.1U CN216517970U (en) | 2021-11-23 | 2021-11-23 | Survey stage drilling internal measurement tunnel external water pressure device |
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| Publication Number | Publication Date |
|---|---|
| CN216517970U true CN216517970U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122893139.1U Active CN216517970U (en) | 2021-11-23 | 2021-11-23 | Survey stage drilling internal measurement tunnel external water pressure device |
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| CN (1) | CN216517970U (en) |
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2021
- 2021-11-23 CN CN202122893139.1U patent/CN216517970U/en active Active
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