CN203768881U - Water seepage draining device for corridors of mountain and dam body - Google Patents

Water seepage draining device for corridors of mountain and dam body Download PDF

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Publication number
CN203768881U
CN203768881U CN201420100439.7U CN201420100439U CN203768881U CN 203768881 U CN203768881 U CN 203768881U CN 201420100439 U CN201420100439 U CN 201420100439U CN 203768881 U CN203768881 U CN 203768881U
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China
Prior art keywords
draining
water
drain hole
dam body
main pipeline
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CN201420100439.7U
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Chinese (zh)
Inventor
向建
刘章腾
刘政
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Sinohydro Bureau 7 Co Ltd
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Sinohydro Bureau 7 Co Ltd
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Priority to CN201420100439.7U priority Critical patent/CN203768881U/en
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Abstract

The utility model provides a water seepage draining device for the corridors of mountains and dam bodies. The water seepage draining device comprises a draining corridor, upward draining holes, downward draining holes and a draining pipe main pipeline, wherein the upward draining holes are formed in the top of the draining corridor; the downward draining holes are formed in the bottom of the draining corridor; the angles of the downward draining holes and the upward draining holes can be vertically turned downwards according to demands and can be turned by certain angles to guide the confined water in the dam bodies and mountains into the draining corridor; the upward draining holes and the downward draining holes are directly connected to the interior of the draining pipe main pipeline; a cut-off valve is mounted at the tail end of the draining pipe main pipeline. According to the utility model, a water pump is adopted to drain water when water flow feeds into a water-collecting well, which is not the only method to drain water, the draining methods of flowing automatically or pumping water can be alternatively adopted, so that not only can the demands for dewatering and draining and lowering the groundwater level of the mountains and dam bodies be met, but also a large number of costs for pumping and draining water can be reduced, the long-term running cost can be low, and meanwhile, the potential security risks due to the water pump used for a long time can be reduced.

Description

A kind of massif, dam body gallery infiltration dewatering installation
Technical field:
The utility model relates to dam construction Drainage Design technical field, specifically a kind of massif, dam body gallery infiltration dewatering installation.
Background technology:
At present, at water conservancy industry, for reducing dam foundation osmotic pressure to guarantee that Uplift does not exceed standard and meets the requirement of dam stable stress, mainly take to arrange drain hole mode after curtain grouting and curtain, increase seepage paths and reduce seepage water pressure; For reducing dam abutment groundwater table, take to excavate irrigation gallery in the massif that connects dam body, take curtain grouting and mode of establishing drain hole behind the scenes.All modes are all by infiltration is introduced the collecting well of dam body lowest part from gallery, then adopt the mode of water pump water-pumping/draining that the infiltration being pooled in collecting well is pumped to outside dam body, because the amount of water-pumping/draining is very large, lift is higher, long-term operation power consumption is high, and running cost expense is high.
Summary of the invention:
The purpose of this utility model is to provide a kind of massif, dam body gallery infiltration dewatering installation, and this dewatering installation utilizes massif or water in dam pressure and high water head, the way draining that optionally adopts gravity flow or draw water, and long-term running cost expense is low.
To achieve these goals, the utility model adopts following technical scheme:
The utility model provides a kind of massif, dam body gallery infiltration dewatering installation, this infiltration dewatering installation comprises collector drain, upwards drain hole, drain hole and gutter main pipeline downwards, upwards drain hole is arranged at the top of collector drain, drain hole is arranged at the bottom of collector drain downwards, upwards drain hole and downward drain hole directly access gutter main pipeline, gutter main pipeline comprises massif internal drainage pipe main pipeline and dam body internal drainage pipe main pipeline, and gutter main pipeline end is installed non retern valve.
Compared with prior art, the beneficial effect the utlity model has is:
1, the current minute different situations in the utility model collector drain are taked two kinds for the treatment of measures: the pressure water level in collector drain during higher than dam body downstream river surface water level, is optionally opened gutter and automatically discharged by water-head; Otherwise, when gallery internal pressure water level is less than downstream river surface water level, closes gutter and avoid river to flow backwards, now can adopt traditional way of drawing water to pump out the infiltration in gallery with water pump.Thereby the utility model can utilize massif or water in dam pressure and high water head, adopt the mode draining of gravity flow, but not all current import the mode that collecting well is taked water pump water-pumping/draining, can according to circumstances optionally adopt the way draining of gravity flow or water-pumping/draining, the needs, reduction massif and the dam body groundwater level that fall draining have not only been met, and reducing a large amount of water-pumping/draining expenses, long-term running cost expense is low, reduces the long-term potential dangerous risk of using water pump to bring simultaneously.
2, downward drain hole of the present utility model and upwards drain hole deflection dam body side or away from dam body side, so in dam body both sides or a side percolating water spill point near dam body is set, can be the water diversion dam foundation scope under part osmotic pressure effect within the scope of the dam foundation, reduce the effect of uplift pressure to the dam foundation, reduced groundwater table simultaneously, reduced underground water to the long-term emollescence corroding of rock mass, also can play guide and intercept far-end around the order ground of infiltration simultaneously, reduce far-end around the groundwater table of infiltration, with and the impact in Dui Ba district.The utility model can make full use of temporary works if Diversion Tunnel etc. is as collector drain, reduces unnecessary excavation, reduces grouting works amount, cost-saving, and far-end can be run in and affecting outside safety of dam body scope around infiltration stream, reduce dam foundation osmotic pressure simultaneously, reduce dam district groundwater table.
3, the utility model is simple and reasonable for structure, design is dexterous, is easy to manufacture, and cost is low, easy to use, simple to operate.
Accompanying drawing explanation:
Fig. 1 is the utility model drainage layout plan;
Fig. 2 is the section arrangement diagram of Fig. 1;
Fig. 3 is dam body gallery draining schematic diagram;
Fig. 4 is massif gallery draining schematic diagram;
Fig. 5 is dam body massif gallery draining schematic diagram.
Structure and numbering in figure:
1-collector drain, the 2-drain hole that makes progress, the 3-drain hole that makes progress
4-massif internal drainage pipe main pipeline
5-dam body internal drainage pipe main pipeline
The specific embodiment:
By reference to the accompanying drawings, further illustrate concrete structure of the present utility model.
Contrast Fig. 1 and Fig. 5, the utility model provides a kind of massif, dam body gallery infiltration dewatering installation, and this infiltration dewatering installation comprises collector drain 1, upwards drain hole 2, downward drain hole 3.In the both sides with a certain distance from dam body 6 or a side, below the groundwater table of reservoir area, excavation collector drain 1, collector drain 1 elevation is under the average groundwater table of Ba Qu, at the top of collector drain 1 internal drainage gallery 1, upwards bore upwards drain hole 2 again, the bottom of collector drain 1 is bored downward drain hole 3 downwards, drain hole 3 is with upwards drain hole 2 angles as required can be vertically downward downwards, can also there is certain angle, arrange upwards drain hole 2 and downwards drain hole 3 be for by drain hole 2 upwards and downwards drain hole 3 dam body 6 or the interior artesian water of massif 7 are introduced in collector drain 1, upwards drain hole 2 on collector drain 1, downward drain hole 3 deflection dam body 6 sides or away from dam body 6 sides, so in dam body 6 both sides or a side percolating water spill point near dam body 6 is set, can be the water diversion dam foundation scope under part osmotic pressure effect within the scope of the dam foundation, reduce the effect of uplift pressure to the dam foundation, reduced groundwater table simultaneously, reduced underground water to the long-term emollescence corroding of rock mass, also can play guide and intercept far-end around the order ground of infiltration simultaneously, reduce far-end around the groundwater table of infiltration, with and the impact in Dui Ba district.Upwards drain hole 2, downward drain hole 3 directly access massif internal drainage pipe main pipeline 4 and dam body internal drainage pipe main pipeline 5, and massif internal drainage pipe main pipeline 4 and dam body internal drainage pipe main pipeline 5 ends are installed non retern valves.Pressure water level in collector drain 1 during higher than dam body downstream 8 river surface water level, is opened massif internal drainage pipe main pipeline 4 and dam body internal drainage pipe main pipeline 5, by water-head, dam body 6 or the interior underground water of massif 7 is directly discharged to reservoir area downstream river course automatically; Otherwise, when collector drain 1 internal pressure water level is less than downstream river surface water level, closes massif internal drainage pipe main pipeline 4 and dam body internal drainage pipe main pipeline 5 and avoid river to flow backwards, now can adopt traditional way of drawing water to pump out the infiltration in collector drain 1 with water pump.
The utility model can make full use of temporary works as dam body 6, the Diversion Tunnels of massif 7 etc. are as collector drain 1, Diversion Tunnel is rounded, lining cutting Hou Dong footpath 6.8m, elevation El.637m left and right, dam foundation elevation El.634m, during construction, at Diversion Tunnel top, upwards bore upwards drain hole 2, with vertical angle at 0 °-20 °, 3 meters of spacing, drain hole 2 hole depth 33m make progress, in Diversion Tunnel bottom, bore downward drain hole 3 downwards again, downward drain hole 3 hole depth 40m, drain hole 2 makes progress, drain hole 3 apertures are 110mm downwards, drain hole 2 makes progress, drain hole 3 starts to finish to approaching Diversion Tunnel outlet from Diversion tunnel plug downwards.

Claims (8)

1. a massif, dam body gallery infiltration dewatering installation, it is characterized in that: this dewatering installation comprises collector drain (1), drain hole (2) makes progress, downward drain hole (3) and gutter main pipeline, upwards drain hole (2) is arranged at the top of collector drain (1), drain hole (3) is arranged at the bottom of collector drain (1) downwards, upwards drain hole (2) and downward drain hole (3) directly access gutter main pipeline, gutter main pipeline comprises massif internal drainage pipe main pipeline (4) and dam body internal drainage pipe main pipeline (5), gutter main pipeline end is installed non retern valve.
2. massif according to claim 1, dam body gallery infiltration dewatering installation, is characterized in that: upwards drain hole (2) is in vertical direction with 0 °-20 °.
3. massif according to claim 1, dam body gallery infiltration dewatering installation, is characterized in that: this downward drain hole (3) vertically downward.
4. massif according to claim 1, dam body gallery infiltration dewatering installation, is characterized in that: utilize the Diversion Tunnel of dam body massif as this collector drain (1), Diversion Tunnel is rounded, lining cutting Hou Dong footpath 6.8m.
5. massif according to claim 1, dam body gallery infiltration dewatering installation, is characterized in that: upwards drain hole (2) spacing is 3 meters.
6. massif according to claim 1, dam body gallery infiltration dewatering installation, is characterized in that: drain hole (2) hole depth 33m should make progress.
7. massif according to claim 1, dam body gallery infiltration dewatering installation, is characterized in that: this downward drain hole (3) hole depth 40m.
8. massif according to claim 1, dam body gallery infiltration dewatering installation, is characterized in that: upwards drain hole (2), downward drain hole (3) aperture are 110mm.
CN201420100439.7U 2014-03-06 2014-03-06 Water seepage draining device for corridors of mountain and dam body Active CN203768881U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420100439.7U CN203768881U (en) 2014-03-06 2014-03-06 Water seepage draining device for corridors of mountain and dam body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420100439.7U CN203768881U (en) 2014-03-06 2014-03-06 Water seepage draining device for corridors of mountain and dam body

Publications (1)

Publication Number Publication Date
CN203768881U true CN203768881U (en) 2014-08-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106555419A (en) * 2016-10-27 2017-04-05 杨振华 A kind of artesian water exploitation, the integrated apparatus for utilizing
CN110453652A (en) * 2019-08-27 2019-11-15 中水北方勘测设计研究有限责任公司 A method of the Reservoir region of processing karst area disappears water burst hole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106555419A (en) * 2016-10-27 2017-04-05 杨振华 A kind of artesian water exploitation, the integrated apparatus for utilizing
CN110453652A (en) * 2019-08-27 2019-11-15 中水北方勘测设计研究有限责任公司 A method of the Reservoir region of processing karst area disappears water burst hole

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