CN106368177A - Composite high earth-rock dam - Google Patents
Composite high earth-rock dam Download PDFInfo
- Publication number
- CN106368177A CN106368177A CN201610997734.0A CN201610997734A CN106368177A CN 106368177 A CN106368177 A CN 106368177A CN 201610997734 A CN201610997734 A CN 201610997734A CN 106368177 A CN106368177 A CN 106368177A
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- downstream
- upstream
- wall
- core wall
- earth
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/06—Earth-fill dams; Rock-fill dams
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention belongs to the field of water conservancy and hydropower engineering, and particularly discloses a composite high earth-rock dam low in cost and good in anti-seepage effect. The composite high earth-rock dam comprises an asphalt core wall, an upstream rockfill area, an upstream transition layer, an upstream reversed filter layer, an upstream earth core wall, a downstream earth core wall, a downstream reversed filter layer, a downstream transition layer and a downstream rockfill area, wherein the upstream rockfill area, the upstream transition layer, the upstream reversed filter layer and the upstream earth core wall are sequentially arranged on the upstream side of the asphalt core wall along the water flow direction, and the downstream earth core wall, the downstream reversed filter layer, the downstream transition layer and the downstream rockfill area are sequentially arranged on the downstream side of the asphalt core wall along the water flow direction. The upstream earth core wall and the downstream earth core wall are arranged on the upstream side and the downstream side of the asphalt core wall correspondingly to form a composite core wall structure, on the premise of guaranteeing stability and safety of a dam body, the use level of anti-seepage earth materials and asphalt materials can be reduced, and the engineering investment is reduced; and the upstream earth core wall and the downstream earth core wall can have the repair function on construction defects existing on the asphalt core wall, the anti-seepage effect of the asphalt core wall is effectively improved, and the anti-seepage safety of the dam body is greatly improved.
Description
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering field is and in particular to a kind of high earth and rockfill dam of combined type.
Background technology
Soil property core-wall and Colophonium core-wall are two kinds of common core of earth-rockfill dam structures.The width of both core-walls is according to satisfaction
The permissive permeability gradient of core-wall simultaneously considers that core-wall antidetonation cracking resistance and the requirement of mechanical execution determine.Soil property core-wall section from upper and
Under gradually widen, top width is typically no less than 3m, bottom width be typically no less than head 1/4.Colophonium heart coping width
Degree is typically no less than 40cm, and its bottom width is the 1/70～1/130 of height of dam.
To soil property earth rockfill dam with central core, soil property core-wall upstream and downstream slope is than generally 1:2.0～1:3.0, particularly soil property core-wall
High earth and rockfill dam, soil property core-wall wider width, core-wall section is big, unfavorable to dam slide stabilization；Core-wall quantities is big, and earth material consumption is big,
Cost is high, and it is many to occupy cultivated land, and is unfavorable for environmental conservation.To Colophonium earth rockfill dam with central core, the particularly high earth and rockfill dam of Colophonium core-wall, it is
Meet dam body seepage requirement, frequently with wider Colophonium core-wall, and Colophonium core-wall is dam body unique antiseepage barrier, once destroying
Afterwards, no other antiseepage protective measures, antiseepage safety is poor.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of cost relatively low and preferable combined type Gao Tushi of anti-seepage effect
Dam.
The technical solution adopted for the present invention to solve the technical problems is: the high earth and rockfill dam of combined type, including Colophonium core-wall, and
Parallel to the flow direction is successively set on upstream rockfill area, upstream transition layer, upstream loaded filter and the upstream soil of Colophonium core-wall upstream side
Barycenter wall, and Parallel to the flow direction be successively set on the downstream soil property core-wall in Colophonium core-wall downstream, downstream loaded filter, under swim across
Cross layer and downstream rockfill area.
It is further that the surface of described upstream rockfill area is provided with upstream slope-protection structure, the table of described downstream rockfill area
Face is provided with downstream protection slope structure.
It is further that the top width of described Colophonium core-wall is not less than 40cm, and the bottom width of described Colophonium core-wall is
The 1/200～1/300 of this combined type high earth and rockfill dam height of dam.
It is further that described upstream loaded filter, upstream soil property core-wall, Colophonium core-wall, downstream soil property core-wall and downstream are anti-
The slope ratio of filtering layer is 1:0.1.
The invention has the beneficial effects as follows: this combined type high earth and rockfill dam structure is simple, easy construction, by Colophonium core-wall
Downstream is respectively provided with upstream soil property core-wall and downstream soil property core-wall forms combined type core-wall structure, is ensureing dam stabilization safety
On the premise of, the consumption of impermeable soil and asphalt material can be reduced, save construction investment, and reduce difficulty of construction, shorten
Duration；Meanwhile, also save land resource, reduce the pollution to environment for the asphalt material, be conducive to environmental protection.And,
Upstream soil property core-wall and downstream soil property core-wall can play repairing effect to constructional deficiency present on Colophonium core-wall, effectively improve drip
The anti-seepage effect of blue or green core-wall, substantially increases the antiseepage safety of dam body.Further, since upstream soil property core-wall and the downstream soil property heart
It is provided with Colophonium core-wall between wall, the width of upstream soil property core-wall and downstream soil property core-wall is all narrower, this combined type can be improved high
The stability of earth and rockfill dam dam slope.
Brief description
Fig. 1 is the enforcement structural representation of the present invention；
In figure is labeled as: upstream rockfill area 10, upstream slope-protection structure 11, upstream transition layer 20, upstream loaded filter 30, upstream
Soil property core-wall 40, Colophonium core-wall 50, downstream soil property core-wall 60, downstream loaded filter 70, downstream transition layer 80, downstream rockfill area 90,
Downstream protection slope structure 91.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the high earth and rockfill dam of combined type, including Colophonium core-wall 50, and Parallel to the flow direction is successively set on the Colophonium heart
The upstream rockfill area 10 of wall 50 upstream side, upstream transition layer 20, upstream loaded filter 30 and upstream soil property core-wall 40, and flow downstream
Direction be successively set on the downstream soil property core-wall 60 in Colophonium core-wall 50 downstream, downstream loaded filter 70, downstream transition layer 80 and under
Trip rockfill area 90.Wherein, the surface in upstream rockfill area 10 is provided with upstream slope-protection structure 11, on the surface of downstream rockfill area 90
It is provided with downstream protection slope structure 91.For ensureing the antiseepage safety of dam body and the stability of dam slope, the top of described Colophonium core-wall 50
Portion's width is not less than 40cm, and the bottom width of described Colophonium core-wall 50 is the 1/200～1/ of this combined type high earth and rockfill dam height of dam
300.Preferably, described upstream loaded filter 30, upstream soil property core-wall 40, Colophonium core-wall 50, downstream soil property core-wall 60 and downstream are anti-
The slope ratio of filtering layer 70 is 1:0.1.
During the combined type core-wall structure of the construction high earth and rockfill dam of this combined type, placement in layers, rolled asphalt coagulation
Soil, after often having rolled one layer of asphalt concrete layer, downstream surface fills impermeable soil respectively thereon, and so circulation is until reach
Till design of dam body elevation, ultimately forming middle is Colophonium core-wall 50, upstream and downstream side respectively upstream soil property core-wall 40 and downstream
The combined type core-wall structure of soil property core-wall 60.
By Colophonium core-wall 50 upstream and downstream side be respectively provided with upstream soil property core-wall 40 and downstream soil property core-wall 60 formed multiple
Box-like core-wall structure, on the premise of ensureing dam stabilization safety, compared with earth and rockfill dam high with existing Colophonium core-wall, in the present invention
The narrower width of Colophonium core-wall 50, the difficulty of construction of Colophonium core-wall 50 is relatively reduced, and the construction period is shorter, and asphalt material consumption is more
Few, cost is also lower, can reduce the pollution to environment for the asphalt material simultaneously；Compared with earth and rockfill dam high with existing soil property core-wall, this
The width summation of invention middle and upper reaches soil property core-wall 40 and downstream soil property core-wall 60 is narrower, and the consumption of impermeable soil is few, and quantities is little
Construction period is shorter, can improve dam slope stability, and because the consumption of impermeable soil is few, occupies cultivated land accordingly few, expropriation of land
Immigrant also reduces, and construction investment is relatively low, and is beneficial to environmental protection.In addition, upstream soil property core-wall 40 and downstream soil property core-wall 60 can
Constructional deficiency present on Colophonium core-wall 50 is played with repairing effect, effectively improves the anti-seepage effect of Colophonium core-wall 50, significantly carry
The high overall antiseepage safety of the high earth and rockfill dam of this combined type.
Claims (4)
1. the high earth and rockfill dam of combined type it is characterised in that: include Colophonium core-wall (50), and Parallel to the flow direction be successively set on the Colophonium heart
The upstream rockfill area (10) of wall (50) upstream side, upstream transition layer (20), upstream loaded filter (30) and upstream soil property core-wall (40),
And Parallel to the flow direction be successively set on downstream soil property core-wall (60) in Colophonium core-wall (50) downstream, downstream loaded filter (70),
Downstream transition layer (80) and downstream rockfill area (90).
2. the high earth and rockfill dam of combined type as claimed in claim 1 it is characterised in that: the surface setting of described upstream rockfill area (10)
There is upstream slope-protection structure (11), the surface of described downstream rockfill area (90) is provided with downstream protection slope structure (91).
3. the high earth and rockfill dam of combined type as claimed in claim 1 it is characterised in that: the top width of described Colophonium core-wall (50) is not
Less than 40cm, the bottom width of described Colophonium core-wall (50) is the 1/200～1/300 of this combined type high earth and rockfill dam height of dam.
4. the high earth and rockfill dam of combined type as described in claim 1,2 or 3 it is characterised in that: described upstream loaded filter (30), upstream
Soil property core-wall (40), the slope ratio of Colophonium core-wall (50), downstream soil property core-wall (60) and downstream loaded filter (70) are 1:0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997734.0A CN106368177A (en) | 2016-11-11 | 2016-11-11 | Composite high earth-rock dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997734.0A CN106368177A (en) | 2016-11-11 | 2016-11-11 | Composite high earth-rock dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106368177A true CN106368177A (en) | 2017-02-01 |
Family
ID=57893959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997734.0A Pending CN106368177A (en) | 2016-11-11 | 2016-11-11 | Composite high earth-rock dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106368177A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064590A (en) * | 2020-08-31 | 2020-12-11 | 中国电建集团华东勘测设计研究院有限公司 | Anti-seismic structure of clay core wall rock-fill dam in high seismic region and construction method |
| CN112227381A (en) * | 2020-10-17 | 2021-01-15 | 中电建十一局工程有限公司 | Construction method of asphalt concrete core wall of narrow foundation pit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0364997A2 (en) * | 1988-10-21 | 1990-04-25 | Bau-Ag Strabag | Bituminous core sealing for earth works, and method for producing same |
| RU2010127907A (en) * | 2010-07-06 | 2012-01-20 | Государственное образовательное учреждение высшего профессионального образования "Сибирская государственная автомобильно-дорожная | METHOD OF CONSTRUCTION OF THE WEIR |
| CN203393682U (en) * | 2013-08-13 | 2014-01-15 | 中国水电顾问集团成都勘测设计研究院有限公司 | Retaining dam for water resources and hydropower engineering |
| CN205296084U (en) * | 2016-01-14 | 2016-06-08 | 郑州大学 | Hydraulic and hydroelectric engineering's dam |
| CN206157672U (en) * | 2016-11-11 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Combined type high earth -rock dam |
-
2016
- 2016-11-11 CN CN201610997734.0A patent/CN106368177A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0364997A2 (en) * | 1988-10-21 | 1990-04-25 | Bau-Ag Strabag | Bituminous core sealing for earth works, and method for producing same |
| RU2010127907A (en) * | 2010-07-06 | 2012-01-20 | Государственное образовательное учреждение высшего профессионального образования "Сибирская государственная автомобильно-дорожная | METHOD OF CONSTRUCTION OF THE WEIR |
| CN203393682U (en) * | 2013-08-13 | 2014-01-15 | 中国水电顾问集团成都勘测设计研究院有限公司 | Retaining dam for water resources and hydropower engineering |
| CN205296084U (en) * | 2016-01-14 | 2016-06-08 | 郑州大学 | Hydraulic and hydroelectric engineering's dam |
| CN206157672U (en) * | 2016-11-11 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Combined type high earth -rock dam |
Non-Patent Citations (2)
| Title |
|---|
| 刘春鸣等: "《水利工程施工技术 基础工种篇》", 31 January 2014 * |
| 孙守安等: "堆石坝浇筑式沥青混凝土防渗墙概述", 《东北水利水电》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064590A (en) * | 2020-08-31 | 2020-12-11 | 中国电建集团华东勘测设计研究院有限公司 | Anti-seismic structure of clay core wall rock-fill dam in high seismic region and construction method |
| CN112227381A (en) * | 2020-10-17 | 2021-01-15 | 中电建十一局工程有限公司 | Construction method of asphalt concrete core wall of narrow foundation pit |
| CN112227381B (en) * | 2020-10-17 | 2022-03-11 | 中电建十一局工程有限公司 | Construction method of asphalt concrete core wall of narrow foundation pit |
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Application publication date: 20170201 |
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