CN1022428C - Leakage-removing device for dam body - Google Patents
Leakage-removing device for dam body Download PDFInfo
- Publication number
- CN1022428C CN1022428C CN 92103566 CN92103566A CN1022428C CN 1022428 C CN1022428 C CN 1022428C CN 92103566 CN92103566 CN 92103566 CN 92103566 A CN92103566 A CN 92103566A CN 1022428 C CN1022428 C CN 1022428C
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- Prior art keywords
- dam
- seepage
- discharging
- dam body
- row
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- Expired - Fee Related
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a seepage-discharging pipe of a sluicing siltation earth dam body and an arrangement method thereof. The seepage-discharging pipe comprises seepage-discharging conduits which are plastic corrugated pipes provided with micro-pores, and the maximum inside diameter of each plastic corrugated pipe is 55mm; seepage-discharging pipes are layered and staggered in the dam along a dam axis, and the seepage-discharging conduits communicated with the seepage-discharging pipes are communicated with drainage pipes led out of a dam toe. The present invention has the advantages of reasonable design, convenient construction and favorable seepage discharging effect, and also has the advantages of effectively reducing seepage lines, accelerating the dehydration and the consolidation of the sluicing siltation dam, reducing the depth of an area in a flowing state in the dam body by one fourth, improving hole-pressure dissipating rate by 30 percent, enabling a side slope steeper by 0.25 to 0.5, reducing the earth quantity of the dam body by more than 10 percent and reducing drainage engineering investments by 60 percent. The present invention has obvious social and economic benefits.
Description
The present invention relates to water conservancy industry, specially refer to the sluicing siltation earth dam construction period and utilization phase dam body row is oozed device.
Sluicing siltation earth dam belongs to China's initiative.By the SD122-84(of Ministry of Water Resources and Power Industry sluicing siltation earth dam design and construction temporary provisions) drainage of sluicing siltation earth dam can be divided into two kinds of permanent drainage and temporary drainage facilities.The permanent drainage of dam body adopts the drainage prism of drainage prism or band mattress more.Main effect is an infiltration flowing water of getting rid of the utilization phase, reduces dam seepage line, can get rid of the fixed infiltration of dredger fill body simultaneously again.Dam body temporary drainage facility mainly contains sand drain, sand furrow, vertical permeable wall, vertical shaft and gallery etc.The main effect of temporary drainage facility is the fixed infiltration of getting rid of construction period dredger fill body, reduces the pore water pressure that bankets, and strengthens the stability of dam body and reduces the phreatic line of utilization phase dam body.Not only discharge structure more complicated but also difficulty of construction are bigger for sluicing siltation earth dam in practice of construction.Especially in most of area in loess plateau, the water resource and the sandstone gravel material utmost point lack.Must utilize the water source that is held to construct again in the dam upstream inpoundment earlier in construction, this have just strengthened the draining difficulty of dam body.Particularly in the impervious foundation and the higher area of soil property clay content, district of building a dam, the draining difficulty more need solve.In addition because existing drainage is unreasonable, so the difficult sluicing siltation earth dam of grasping dashes the speed of filling out in the construction, when dashing the speed of filling out when fast, the fluidised form district degree of depth causes dam body bulge crack even landslide and breaking down of causing greatly easily in the dam.When dashing the speed of filling out when slow, the fluidised form district is little, and dam body has been stablized, but construction speed is slow, work efficiency is low, does not reach the flood control height of dam before not only having strengthened construction investment but also often having caused flood season, has strengthened passive situations such as the flood control expense causes that break down flood season.
The object of the present invention is to provide a kind of the raising to ooze device towards the dam body row who fills out work efficiency and alternative conventional dam body drainage works.
The objective of the invention is to realize with following proposal: the drainage pipe that row is oozed device is the intersecting parallels layering and is laid staggeredly in the dam, the row who is communicated with drainage pipe ooze conduit be shrunk to gradually downstream pencil and with draw base of dam gutter outward and be communicated with.
Above-mentioned drainage pipe, row are oozed conduit and are the plastic film capicitor that is provided with micropore, and its pipe maximum inner diameter is 55 millimeters, can coat geotextile on the plastic film capicitor, combine skin or polypropylene fibre silk etc.
Above-mentioned drainage pipe floor height is a 7-10 rice apart from bottom, and the upper strata is a 4-6 rice, and horizontal range is a 8-18 rice.
The present invention is applicable to that the dam body row of sluicing siltation earth dam and earth dam oozes conventional dam body drainage works such as alternative drainage prism.Easy construction of the present invention, water seepage drainage effect be good, can effectively reduce phreatic line.Solved the sluicing siltation earth dam dewatering and coagulating preferably, it is significant that sand gravel is lacked the area.The present invention is reasonable in design, not only can shorten the sluicing siltation earth dam discharging consolidation time, improve to dash and fill out the shear strength of body and caused the redistribution of dam body water content, reduce the fluidised form district degree of depth about 1/4 in the dam body, improve pore pressure dissipation speed 30%, but constriction rolls the ridge, limit width 20-30% under identical dam body stability and security degree, makes side slope put steep 0.25-0.5, thereby reduces the dam body earth volume more than 10%.Invest about 30,000 yuan according to every dam saving of measuring and calculating, can reduce drainage works investment 60%, have remarkable social benefit and economic benefit.
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the three-dimensional schematic diagram of laying of the present invention.
Drainage pipe (1) is the intersecting parallels layering and is laid staggeredly in dam body as shown in Figure 1.Drainage pipe (1) floor height is 9 meters apart from bottom, and upper strata (three layers of the second layers to the) is 5 meters, and the horizontal range of drainage pipe (1) is 13 meters.Row is oozed conduit (2) and is communicated with drainage pipe (1) and also is shrunk to pencil downstream gradually and is communicated with the gutter of drawing base of dam (3).Drainage pipe (1) oozes conduit (2) with row and is the plastic film capicitor that is provided with micropore.The caliber of bellows is 50mm and is connected by sleeve pipe or tee piece.Outer geotextile that coats of bellows or brown micromicro are tied shape with galvanized wire wrapping well-thought-out plan.
Embodiment two: drainage pipe (1) floor height bottom is 10 meters, and the upper strata is 6 meters, and horizontal range is 16 meters.The outer polypropylene fibre silk that also can directly twine of pipe is laid.
Claims (3)
1, a kind of dam body row is oozed device, comprise drainage pipe (1), gutter (3), it is characterized in that arranging the drainage pipe (1) that oozes device and be the intersecting parallels layering be laid staggeredly in the dam, the row who is communicated with drainage pipe (1) oozes that conduit (2) is shrunk to pencil downstream gradually and the gutter (3) outer with drawing base of dam is communicated with.
2, dam body as claimed in claim 1 row is oozed device, it is characterized in that drainage pipe (1), row ooze conduit (2) and be the plastic film capicitor that is provided with micropore, and its pipe maximum inner diameter is 55 millimeters, can coat geotextile on the plastic film capicitor, combine skin or polypropylene fibre silk etc.
3, dam body row as claimed in claim 1 is oozed device, it is characterized in that drainage pipe (1) floor height is a 7-10 rice apart from bottom, and the upper strata is a 4-6 rice, and horizontal range is a 8-18 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103566 CN1022428C (en) | 1992-04-30 | 1992-04-30 | Leakage-removing device for dam body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92103566 CN1022428C (en) | 1992-04-30 | 1992-04-30 | Leakage-removing device for dam body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1067465A CN1067465A (en) | 1992-12-30 |
| CN1022428C true CN1022428C (en) | 1993-10-13 |
Family
ID=4940284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92103566 Expired - Fee Related CN1022428C (en) | 1992-04-30 | 1992-04-30 | Leakage-removing device for dam body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1022428C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297713C (en) * | 2004-07-15 | 2007-01-31 | 国家电力公司华东勘测设计研究院 | Back ward water draining system of face plate rock-fill dam dam body and its construction method |
| RU2768715C1 (en) * | 2021-10-13 | 2022-03-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Государственный университет морского и речного флота имени адмирала С.О. Макарова» | Earth dam drainage system |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362173C (en) * | 2004-07-16 | 2008-01-16 | 贵阳铝镁设计研究院 | Drainage assembly of dry process red mud stockyard outer dam |
| CN100373012C (en) * | 2004-11-15 | 2008-03-05 | 贵阳铝镁设计研究院 | Dry redmud yard drainage method and apparatus |
| CN100460603C (en) * | 2006-11-30 | 2009-02-11 | 付文堂 | Seepage drainage method for tailing dam and seepage drainage pipe for use therein |
| CN101994312B (en) * | 2010-10-15 | 2012-02-01 | 中冶沈勘工程技术有限公司 | Soil side slope or tailings dam drainage construction method |
| RU2528700C1 (en) * | 2013-04-02 | 2014-09-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" (Сфу) | Earth dam |
| CN103216003A (en) * | 2013-04-17 | 2013-07-24 | 河海大学 | Sectionally constructed seepage drainage pipe for tailings dam |
| CN103526760B (en) * | 2013-10-30 | 2015-04-15 | 陕西省水土保持局 | Mud pump damming integrated machine |
| CN110359430A (en) * | 2019-07-30 | 2019-10-22 | 中国电建集团成都勘测设计研究院有限公司 | A kind of Gravity Dam Foundation discharge structure |
| CN110670546B (en) * | 2019-10-18 | 2021-03-26 | 付文堂 | Method for building dam by bidirectional permeation and reverse laying of seepage drainage arrises |
| CN112281755A (en) * | 2020-11-25 | 2021-01-29 | 昆明理工大学 | Novel seepage drainage system of earth and rockfill dam |
-
1992
- 1992-04-30 CN CN 92103566 patent/CN1022428C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297713C (en) * | 2004-07-15 | 2007-01-31 | 国家电力公司华东勘测设计研究院 | Back ward water draining system of face plate rock-fill dam dam body and its construction method |
| RU2768715C1 (en) * | 2021-10-13 | 2022-03-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования «Государственный университет морского и речного флота имени адмирала С.О. Макарова» | Earth dam drainage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1067465A (en) | 1992-12-30 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |