CN202610943U - Comprehensive external water drainage structure of steel liner of high pressure pipeline in karst area - Google Patents
Comprehensive external water drainage structure of steel liner of high pressure pipeline in karst area Download PDFInfo
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- CN202610943U CN202610943U CN 201220264059 CN201220264059U CN202610943U CN 202610943 U CN202610943 U CN 202610943U CN 201220264059 CN201220264059 CN 201220264059 CN 201220264059 U CN201220264059 U CN 201220264059U CN 202610943 U CN202610943 U CN 202610943U
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- water drainage
- hoop
- high pressure
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Abstract
The utility model relates to a comprehensive external water drainage structure of a steel liner of a high pressure pipeline in a karst area. The comprehensive external water drainage structure of the steel liner of the high pressure pipeline in the karst area is convenient to construct and strong in systematicness, successively reduces external water pressure in different ranges outside the high pressure pipeline, and effectively reduces the external water pressure which is directly played on the outer wall of the high pressure pipeline. The technical scheme is that the high pressure pipeline is arranged in the karst area and the steel liner is arranged inside the high pressure pipeline. The comprehensive external water drainage structure of the steel liner of the high pressure pipeline in the karst area is characterized in that circumferential water drainage galleries are arranged on the periphery of the high pressure pipeline every certain altitude difference, an adherence external water drainage system and a palisades external water drainage system are respectively arranged the outer wall of the steel liner and the inner side of palisades, the external water drainage system and the palisades external water drainage system are connected with corresponding circumferential water drainage galleries through respective external water drainage steel tubes, and a valve and a pressure gage are arranged in an opening of each of the external water drainage steel tubes inside the circumferential water drainage galleries. The comprehensive external water drainage structure of the steel liner of the high pressure pipeline in the karst area is suitable for water resource and hydropower engineering.
Description
Technical field
The utility model relates to the comprehensive outer discharge structure of a kind of karst zone pressure piping steel lining.Be applicable to Hydraulic and Hydro-Power Engineering.
Background technology
The nearly factory building section of underground hydraulic power project is often arranged pressure piping; And adopt the steel lining structure more, with the risk of exosmosing of water in effectively resisting, but in the stratum of rich groundwater; Steel lining is installed the tube wall outside, back possibly bear higher external water pressure, unfavorable to the stable and safety of steel lining.
For effectively avoiding or alleviate the influence that lining cutting receives the potential high external water pressure of massif, the means that present domestic engineering is generally taked have: one, adopt the passive opposing external water pressures of self structure strengthening measure such as stiffening ring; Two, disclose main water flowing out structure face punching to excavation and drain outer water and drainage; Three, pressure piping peripheral excavation collector drain or arrange steel pipe adherent outside the mode of draining reduce external water pressure.
More single during above-mentioned conventional means practical application, lack systematicness; Corresponding complex geological condition is particularly when pressure piping is positioned at solubility rock zone; Because karst is grown the uncertainty of position and scale, in the practice of construction the very difficult whole shutoff of possible penetrating passage that will be in communication with the outside closely knit, the threat of its suffered high external water pressure increases greatly; The drainage system that does not form system is difficult to tackle external water pressure effectively, can't guarantee the permanent safety of engineering operation.
Summary of the invention
The technical problem that the utility model will solve is: to the problem of above-mentioned existence; A kind of easy construction, the comprehensive outer discharge structure of systemic strong karst zone pressure piping steel lining are provided; Different range forms reduction to the external water pressure successive outside pressure piping, reduces the external water pressure that acts directly on the Steel Tube Special outer wall effectively.
The technical scheme that the utility model adopted is: the comprehensive outer discharge structure of a kind of karst zone pressure piping steel lining; Be furnished with pressure piping in the karst region; The pressure piping installed inside has steel lining, it is characterized in that: said pressure piping is peripheral every at a distance from certain height difference layout hoop collector drain; Said steel lining outer wall and crag inboard are respectively equipped with adherent outer drainage system and the outer drainage system of crag; This two system is communicated with pairing hoop collector drain through outer water discharging steel pipe separately, outer water discharging steel pipe outlet mounted valve and pressure meter in the hoop collector drain.
Said adherent outer drainage system comprises the longitudinal drainage angle steel of being close to the steel lining outer wall and the hoop channel-section steel that catchments, and wherein the longitudinal drainage angle steel is along the vertical elongated layout of steel lining axis, and the hoop channel-section steel that catchments is arranged along steel lining axis spacing, forms parallelly connected discharge pipe line; The hoop channel-section steel that catchments is communicated with said outer water discharging steel pipe.
The outer drainage system of said crag comprises the radial gutter arranged in the crag, be close to the steel pipe and along the hoop that pressure piping axis spacing is arranged catchment steel pipe, wherein gutter and the corresponding steel pipe connection of vertically catchmenting of vertically catchmenting of the vertical elongated layout of crag; The hoop steel pipe that catchments is communicated with said outer water discharging steel pipe.
Said hoop collector drain is furnished with drain hole along the line.
The beneficial effect of the utility model is: through at pressure piping cavern peripheral excavation collector drain and arrange be provided with in drain hole+pressure piping drainage system outside the crag+steel lining outer wall be provided with adherent outside triple comprehensive coverage measures such as drainage system; And the use that complements one another forms drainage system; Can outside pressure piping, different range form reduction, reduce the external water pressure that acts directly on the Steel Tube Special outer wall effectively the external water pressure successive.The pressure piping steel lining that the utility model proposes comprehensive outer draining measure can the reduction effectively karst is grown local ground watering power generation engineering pressure piping external water pressure; And realize phreatic orderly controlled discharging; Thereby save the steel lining wall thickness; Reduce construction costs, for the engineering safety operation provides strong guarantee.
Description of drawings
Fig. 1 is the sectional side elevation of the utility model.
Fig. 2 is the profile in plan of the utility model.
Fig. 3 is an adherent outer drainage system drawing in side sectional elevation in the utility model.
Fig. 4 is the outer drainage system drawing in side sectional elevation of crag in the utility model.
The specific embodiment
Present embodiment is furnished with pressure piping 1 (vertical shaft or inclined shaft) in the karst region, this pressure piping crag surface is sprayed with a layer concrete, and steel lining 4, fill concrete between steel lining 4 and the pressure piping crag are installed in the pressure piping.Whenever arrange hoop collector drain 2 at a distance from certain height difference in pressure piping 1 periphery; The gallery number of plies is comprehensively definite, too much unsuitable in conjunction with pressure piping height, water-out manners, practice of construction condition etc., and rock pillar thickness need satisfy the requirement of waterpower osmosis stabilizing distance between gallery cavern and the steel lining 4; Hoop collector drain 2 osculums 9 of arranging along the line, in the hope of at pressure piping 1 contoured water curtain in a row, osculum 9 can adopt larger aperture, like φ 90mm, and spacing 2 ~ 3m sees Fig. 1; Accomplish the back at each pressure piping 1 excavation and arrange to connect and prop up a hole 3 and be communicated with, in steel lining 4 installations and arrange closely knit backfill shutoff behind the facility in the hole, see Fig. 2 with each layer hoop collector drain 2.
Like Fig. 3, shown in Figure 4, steel lining 4 outer walls and crag inboard be respectively equipped with adherent outside drainage system outside drainage system and the crag.Adherent outer drainage system comprises that steel lining 4 outsides combine stiffening ring to scurry longitudinal drainage angle steel 5 that slurry hole back-off arranges and segmentation and arrange the hoop channel-section steel 6 that catchments; Can directly drain steel lining outer wall ponding; Angle steel is along the vertical elongated layout of steel lining axis, and every ring is arranged several as required, the layout hoop separated by a distance channel-section steel 6 that catchments; Form parallelly connected discharge pipe line, to reduce the influence that local pipeline blockage causes; The outer draining of crag is then arranged the emit system drain hole in the peripheral crag of pressure piping; Gutter 9 through being provided with in the hole is drawn the outer phreatic water of crag; The steel pipe 7 that vertically catchments of external elongated layout, the same spacing with adherent outer drainage system are arranged the hoop steel pipe 8 that catchments.
Carry out the layout of outer draining exhalant canal in conjunction with each layer hoop collector drain 2 each connection hole 3; Promptly in connecting a hole 3 earlier pre-buried two outer water discharge steel pipe respectively with pressure piping 1 in the hoop of correspondence position channel-section steel 6 and the hoop steel pipe 8 that catchments that catchments be communicated with; Connect hole 3 a concrete shutoff again; But the inside and outside water discharging of collector drain steel pipe outlet mounted valve and pressure meter; So that outer water discharging of runtime control and realization external water pressure are forever monitored, visible combination through outer drainage system and collector drain can also realize the classification of the outer water of steel pipe, controlled discharging.But the outer drainage of pressure piping adit section likewise arrangement, and through suitable outlet ejectment.
Claims (4)
1. the comprehensive outer discharge structure of karst zone pressure piping steel lining; Be furnished with pressure piping (1) in the karst region; Pressure piping (1) installed inside has steel lining (4), it is characterized in that: said pressure piping (1) is peripheral every at a distance from certain height difference layout hoop collector drain (2); Said steel lining (4) outer wall and crag inboard are respectively equipped with adherent outer drainage system and the outer drainage system of crag; This two system is communicated with pairing hoop collector drain (2) through outer water discharging steel pipe separately, outer water discharging steel pipe outlet mounted valve and pressure meter in the hoop collector drain (2).
2. the comprehensive outer discharge structure of karst according to claim 1 zone pressure piping steel lining; It is characterized in that: said adherent outer drainage system comprises the longitudinal drainage angle steel (5) of being close to steel lining (4) outer wall and the hoop channel-section steel (6) that catchments; Wherein longitudinal drainage angle steel (5) is along the vertical elongated layout of steel lining axis; Hoop catchments channel-section steel (6) along steel lining axis spacing layout, forms parallelly connected discharge pipe line; The hoop channel-section steel (6) that catchments is communicated with said outer water discharging steel pipe.
3. the comprehensive outer discharge structure of karst according to claim 1 and 2 zone pressure piping steel lining; It is characterized in that: the outer drainage system of said crag comprises the radial gutter of arranging in the crag (9), the steel pipe that vertically catchments (7) of being close to the vertical elongated layout of crag and along the hoop that pressure piping axis spacing is arranged catchment steel pipe (8), wherein gutter (9) and the corresponding steel pipe that vertically catchments (7) connection; The hoop steel pipe (8) that catchments is communicated with said outer water discharging steel pipe.
4. the comprehensive outer discharge structure of karst according to claim 1 zone pressure piping steel lining, it is characterized in that: said hoop collector drain (2) is furnished with drain hole (9) along the line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264059 CN202610943U (en) | 2012-06-06 | 2012-06-06 | Comprehensive external water drainage structure of steel liner of high pressure pipeline in karst area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264059 CN202610943U (en) | 2012-06-06 | 2012-06-06 | Comprehensive external water drainage structure of steel liner of high pressure pipeline in karst area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202610943U true CN202610943U (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264059 Expired - Lifetime CN202610943U (en) | 2012-06-06 | 2012-06-06 | Comprehensive external water drainage structure of steel liner of high pressure pipeline in karst area |
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| CN (1) | CN202610943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790223A (en) * | 2014-03-06 | 2014-05-14 | 贵州正业工程技术投资有限公司 | Karst depression drainage system |
| CN110284470A (en) * | 2019-06-11 | 2019-09-27 | 中国电建集团北京勘测设计研究院有限公司 | A kind of hydropower station pressure pipeline collector drain structure |
-
2012
- 2012-06-06 CN CN 201220264059 patent/CN202610943U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790223A (en) * | 2014-03-06 | 2014-05-14 | 贵州正业工程技术投资有限公司 | Karst depression drainage system |
| CN110284470A (en) * | 2019-06-11 | 2019-09-27 | 中国电建集团北京勘测设计研究院有限公司 | A kind of hydropower station pressure pipeline collector drain structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
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| CX01 | Expiry of patent term |