CN103556989A - Device for implementing shaft surrounding rock water pressure measurement and limited drainage by freezing method and construction method thereof - Google Patents
Device for implementing shaft surrounding rock water pressure measurement and limited drainage by freezing method and construction method thereof Download PDFInfo
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- CN103556989A CN103556989A CN201310554990.9A CN201310554990A CN103556989A CN 103556989 A CN103556989 A CN 103556989A CN 201310554990 A CN201310554990 A CN 201310554990A CN 103556989 A CN103556989 A CN 103556989A
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Abstract
The invention relates to the field of shaft detection equipment and particularly relates to a device for implementing shaft surrounding rock water pressure measurement and limited drainage by a freezing method and a construction method thereof. The device for implementing shaft surrounding rock water pressure measurement and limited drainage by the freezing method is characterized by comprising a water collection pipe embedded into the outer side of shaft wall surrounding rocks; the tail end of the water collection pipe is connected with a drainage pipe penetrating through the shaft wall surrounding rocks; the drainage pipe is connected with an elbow and then is connected with a four-way joint; the other three ends of the four-way joint are respectively connected with a water pressure meter, a water pressure alarm device and an automatic drainage valve. Therefore, the device is reasonable in design, practical and convenient.
Description
(1) technical field
The present invention relates to pit shaft checkout equipment field, particularly a kind of construction freezing method pit shaft country rock water-pressure survey and restricted discharge device and job practices thereof.
(2) background technology
In recent years, in progress of coal mining, mine construction condition worse and worse, and the subject matter facing to be self poor and pit shaft leaks.Freezing process is waterproof and the stability that improves country rock effectively, becomes and passes through one of unstable thick alluvium, broken rock, the most effective pit shaft special construction of soft rock strata method, has been subject to extensive use.But freezing process can not long time solution except the effect of hydraulic pressure in pit shaft country rock, after frost wall thaws, original hydraulic pressure can inevitably act on well bore wall.And, due to the effect that runs through of freezing pipe and the frost heave of soil, melt contracting effect, changed original country rock aquifer structure, on the one hand, make the hydraulic pressure size after changing unpredictable, very easily cause freezing shaft wall to connect stubble, the weakness gushing waters such as built-in fitting are set; On the other hand, make position, aquifer unpredictable, in the reinforcement measure application processes such as subsequent segment grouting and water-proof, reinforce position and select to have blindness, segmentation is reinforced and is not often had expection water plugging effect.Therefore, grasp at any time pit shaft country rock diverse location hydraulic pressure size and position, aquifer, have very important significance.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides a kind of reasonable in design, construction freezing method pit shaft country rock water-pressure survey and restricted discharge device and the job practices thereof of arrangement convenience.
The present invention is achieved through the following technical solutions:
Pit shaft country rock water-pressure survey and a restricted discharge device, is characterized in that: comprise the header that is embedded in Sidewall Surrounding Rock outside, header tail end is connected with the gutter through Sidewall Surrounding Rock; After described gutter bridge piece, connect four-way, its excess-three end of four-way is connected with respectively water pressure gauge, hydraulic pressure pressure alarm and automatic drain valve.
Described header adopts long 1.5m, the stainless-steel pipe of diameter 30mm, and the aperture of the diameter 2mm that gathers above, header is around with two-layer geomembrane parcel; Described gutter is the stainless-steel pipe of diameter 10mm, stretches out after the borehole wall and is affixed on Sidewall Surrounding Rock inner side by bend pipe; Described water pressure gauge, hydraulic pressure pressure alarm, automatic drain valve are connected with gutter respectively by four-way, and water pressure gauge is closed, and hydraulic pressure pressure alarm is water pressure controlled type, and automatic drain valve is water pressure controlled type; Described automatic drain valve is positioned at and gutter four-way end point-blank.
The job practices of described construction freezing method pit shaft country rock water-pressure survey and restricted discharge device, it is characterized in that having comprised following steps: A) in pit shaft country rock at a certain distance, particularly the borehole wall connects stubble, the weakness such as built-in fitting is set, pre-buried header and gutter, gutter is used the shutoff of steel pipe plug after stretching out the borehole wall; B), after borehole wall construction finishes, by bend pipe and four-way, water pressure gauge hydraulic pressure pressure alarm, automatic drain valve are installed; C) hydraulic pressure can bear according to the weakness of the borehole wall, predetermined hydraulic pressure pressure alarm warning hydraulic pressure and automatic drain valve Auto-drainage hydraulic pressure, Auto-drainage hydraulic pressure is a little more than warning hydraulic pressure.
The advantage of construction freezing method pit shaft country rock water-pressure survey of the present invention and restricted discharge device and job practices thereof is:
(1) can grasp at any time the borehole wall each position hydraulic pressure, particularly pit shaft weakness hydraulic pressure, according to hydraulic pressure size, take different reinforcement measures;
(2) can accurately grasp position, aquifer, according to actual conditions, effectively determine the reinforcement measure positions such as grouting and water-proof;
(3) constant pressure alarm and level pressure draining, effectively prevent the generation of pit shaft gushing water phenomenon;
(4) simple in structure, construction and easy to use.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is A-A cross-sectional view of the present invention;
In figure, 1 Sidewall Surrounding Rock, 2 headers, 3 gutters, 4 bend pipes, 5 four-ways, 6 water pressure gauges, 7 hydraulic pressure pressure alarms, 8 automatic drain valves.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises the header 2 that is embedded in Sidewall Surrounding Rock 1 outside, and header 2 tail ends are connected with the gutter 3 through Sidewall Surrounding Rock 1; The rear connection four-way 5 of described gutter 3 bridge piece 4, its excess-three end of four-way 5 is connected with respectively water pressure gauge 6, hydraulic pressure pressure alarm 7 and automatic drain valve 8; Described automatic drain valve 8 is positioned at and gutter 3 four-way 5 ends point-blank; Described header 2 adopts long 1.5m, the stainless-steel pipe of diameter 30mm, and the aperture of the diameter 2mm that gathers above, header 2 is around with two-layer geomembrane parcel; Described gutter 3 is the stainless-steel pipe of diameter 10mm, is affixed on Sidewall Surrounding Rock 1 inner side after stretching out the borehole wall by bend pipe 4; Described water pressure gauge 6, hydraulic pressure pressure alarm 7, automatic drain valve 8 are connected with gutter 3 respectively by four-way 5, and water pressure gauge 6 is closed, and hydraulic pressure pressure alarm 7 is water pressure controlled type, and hydraulic pressure reaches after level pressure, energy automatic alarm; Automatic drain valve 8 is water pressure controlled type, and hydraulic pressure reaches after level pressure, can Auto-drainage.
The job practices of construction freezing method pit shaft country rock water-pressure survey of the present invention and restricted discharge device, it is characterized in that having comprised following steps: 1) in pit shaft country rock 1 at a certain distance, particularly the borehole wall connects stubble, the weakness such as built-in fitting is set, pre-buried header 2 and gutter 3, gutter 3 is used the shutoff of steel pipe plug after stretching out the borehole wall; 2) after borehole wall construction finishes, by bend pipe 4 and four-way 5, water pressure gauge 6, hydraulic pressure pressure alarm 7, automatic drain valve 8 are installed; 3) hydraulic pressure can bear according to the weakness of the borehole wall, predetermined hydraulic pressure pressure alarm 7 warning hydraulic pressure and automatic drain valve 8 Auto-drainage hydraulic pressure, Auto-drainage hydraulic pressure is a little more than warning hydraulic pressure.
Claims (6)
1. construction freezing method pit shaft country rock water-pressure survey and a restricted discharge device, is characterized in that: comprise the header (2) that is embedded in Sidewall Surrounding Rock (1) outside, header (2) tail end is connected with the gutter (3) through Sidewall Surrounding Rock (1); After described gutter (3) bridge piece (4), connect four-way (5), its excess-three end of four-way (5) is connected with respectively water pressure gauge (6), hydraulic pressure pressure alarm (7) and automatic drain valve (8).
2. construction freezing method pit shaft country rock water-pressure survey according to claim 1 and restricted discharge device, is characterized in that: described automatic drain valve (8) is positioned at and gutter (3) four-way (5) end point-blank.
3. construction freezing method pit shaft country rock water-pressure survey according to claim 1 and restricted discharge device, it is characterized in that: described header (2) adopts long 1.5m, the stainless-steel pipe of diameter 30mm, the aperture of the diameter 2mm that gathers above, header (2) is around with two-layer geomembrane parcel.
4. construction freezing method pit shaft country rock water-pressure survey according to claim 1 and restricted discharge device, is characterized in that: described gutter (3) is the stainless-steel pipe of diameter 10mm, is affixed on Sidewall Surrounding Rock (1) inner side after stretching out the borehole wall by bend pipe (4).
5. construction freezing method pit shaft country rock water-pressure survey according to claim 1 and restricted discharge device, it is characterized in that: described water pressure gauge (6), hydraulic pressure pressure alarm (7), automatic drain valve (8) are connected with gutter (3) respectively by four-way (5), water pressure gauge (6) is closed, hydraulic pressure pressure alarm (7) is water pressure controlled type, and automatic drain valve (8) is water pressure controlled type.
6. the job practices of construction freezing method pit shaft country rock water-pressure survey and restricted discharge device according to claim 1, is characterized in that having comprised following steps:
A) in pit shaft country rock (1) at a certain distance, particularly the borehole wall connects stubble, the weakness such as built-in fitting is set, pre-buried header (2) and gutter (3), gutter (3) stretches out after the borehole wall with the shutoff of steel pipe plug;
B) after borehole wall construction finishes, by bend pipe (4) and four-way (5), water pressure gauge (6) hydraulic pressure pressure alarm (7), automatic drain valve (8) are installed;
C) hydraulic pressure can bear according to the weakness of the borehole wall, predetermined hydraulic pressure pressure alarm (7) warning hydraulic pressure and automatic drain valve (8) Auto-drainage hydraulic pressure, Auto-drainage hydraulic pressure is a little more than warning hydraulic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554990.9A CN103556989B (en) | 2013-11-11 | 2013-11-11 | A kind of construction freezing method pit shaft country rock water-pressure survey and restricted discharge device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554990.9A CN103556989B (en) | 2013-11-11 | 2013-11-11 | A kind of construction freezing method pit shaft country rock water-pressure survey and restricted discharge device and construction method thereof |
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| Publication Number | Publication Date |
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| CN103556989A true CN103556989A (en) | 2014-02-05 |
| CN103556989B CN103556989B (en) | 2016-05-18 |
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| CN201310554990.9A Active CN103556989B (en) | 2013-11-11 | 2013-11-11 | A kind of construction freezing method pit shaft country rock water-pressure survey and restricted discharge device and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504374A (en) * | 2020-04-26 | 2020-08-07 | 中国建筑第二工程局有限公司 | Early warning device and early warning method for subway communication channel frozen wall intersection |
| CN113235563A (en) * | 2021-05-18 | 2021-08-10 | 北京中煤矿山工程有限公司 | Municipal communication channel drain pipe orifice gland repairing liquid nitrogen freezing device and gland repairing method |
| CN113404487A (en) * | 2021-07-20 | 2021-09-17 | 贾碧君 | Intelligent monitoring device for stratum well wall freezing profile based on Internet of things |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909323A (en) * | 1989-05-30 | 1990-03-20 | Hastings James E L | Grouting well pipe |
| JP2009167599A (en) * | 2008-01-11 | 2009-07-30 | Shinwa Gijutsu Kk | Excavator |
| CN201546757U (en) * | 2009-11-09 | 2010-08-11 | 灵宝市金源矿业有限责任公司 | Water collection and drainage system for shaft cylinder wall |
| CN101871348A (en) * | 2010-06-11 | 2010-10-27 | 山东科技大学 | Water-conducting and pressure-releasing type composite well wall of vertical shaft and construction method thereof |
| CN103277120A (en) * | 2013-06-19 | 2013-09-04 | 西安科技大学 | Post-unfreezing water burst prevention method of non-full-depth freezing vertical shaft |
-
2013
- 2013-11-11 CN CN201310554990.9A patent/CN103556989B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909323A (en) * | 1989-05-30 | 1990-03-20 | Hastings James E L | Grouting well pipe |
| JP2009167599A (en) * | 2008-01-11 | 2009-07-30 | Shinwa Gijutsu Kk | Excavator |
| CN201546757U (en) * | 2009-11-09 | 2010-08-11 | 灵宝市金源矿业有限责任公司 | Water collection and drainage system for shaft cylinder wall |
| CN101871348A (en) * | 2010-06-11 | 2010-10-27 | 山东科技大学 | Water-conducting and pressure-releasing type composite well wall of vertical shaft and construction method thereof |
| CN103277120A (en) * | 2013-06-19 | 2013-09-04 | 西安科技大学 | Post-unfreezing water burst prevention method of non-full-depth freezing vertical shaft |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504374A (en) * | 2020-04-26 | 2020-08-07 | 中国建筑第二工程局有限公司 | Early warning device and early warning method for subway communication channel frozen wall intersection |
| CN111504374B (en) * | 2020-04-26 | 2021-10-08 | 中国建筑第二工程局有限公司 | Early warning device and early warning method for subway communication channel frozen wall intersection |
| CN113235563A (en) * | 2021-05-18 | 2021-08-10 | 北京中煤矿山工程有限公司 | Municipal communication channel drain pipe orifice gland repairing liquid nitrogen freezing device and gland repairing method |
| CN113404487A (en) * | 2021-07-20 | 2021-09-17 | 贾碧君 | Intelligent monitoring device for stratum well wall freezing profile based on Internet of things |
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| Publication number | Publication date |
|---|---|
| CN103556989B (en) | 2016-05-18 |
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Address after: 250031 Shandong province Ji'nan City flyover District Dikou Road No. 141 Patentee after: General Technology Group Engineering Design Co., Ltd. Address before: 250031 Shandong province Ji'nan City flyover District Dikou Road No. 141 Patentee before: Coal Industry Jinan Design & Research Co., Ltd. |