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Asphalt core wall base and its construction method

A construction method and foundation technology, applied in water conservancy projects, marine engineering, coastline protection, etc., can solve the problem that earth-rock dams cannot be used for overflow, and achieve the effect of optimizing the layout of the hub, saving the construction period, and reducing the height.

Active Publication Date: 2018-03-23
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides an asphalt core wall base, which solves the problem that the previous earth-rock dams cannot be used for flow in the filling process

Method used

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  • Asphalt core wall base and its construction method

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] Such as figure 1 As shown, the base of the asphalt core wall includes a base building surface 11 and a base body 12; the base building surface 11 is set on the bedrock 2, and the base body 12 is set on the base building surface 11, and the level of the top of the base body 12 is higher than the level of the foundation surface 21 of the dam; the level described herein refers to the height relative to the horizontal plane, for example, the level of the top of the base body 12 means The height of the top of the base body 12 relative to the horizontal plane. Wherein, there are multiple implementations of the foundation building surface 11 on the bedrock 2, for example: the foundation building surface 11 is arranged on the surface of the weakly weathered bedrock layer 22 in the bedrock 2, or it is arranged on On the surface of the bedrock 2 after the consolidation grout...

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Abstract

The invention discloses an asphalt core wall base and a construction method thereof, which solves the problem that the previous earth-rock dams cannot be used for flowing during the filling process. The base of the asphalt core wall includes a base building surface and a base body; the base building surface is set on the bedrock, the base body is set on the base building surface, and the top of the base body The horizontal height is higher than the horizontal height of the foundation surface of the dam body. This method is used to construct the above-mentioned asphalt core wall base. The horizontal height of the top of the base body in the foundation is higher than that of the foundation surface of the dam body. Therefore, the part of the foundation higher than the foundation surface of the dam body can protect the safety of the lower section of the dam body, so the earth-rock dam is The flow can be carried out during the process, thereby reducing the height of the upstream cofferdam, reducing the number of diversion tunnels, saving investment and construction period, and optimizing the layout of the hub.

Description

technical field [0001] The invention belongs to the field of water conservancy and hydropower engineering, and in particular relates to an asphalt core wall base and a construction method thereof. Background technique [0002] In an earth-rock dam with an asphalt concrete core wall, the asphalt concrete core wall and the foundation surface of the dam body are connected through a concrete base. The existing asphalt core wall base is generally a concrete base whose top is flush with the base of the dam body by digging grooves on the bedrock. Since the dam body filling material of an earth-rockfill dam with an asphalt core wall is mainly granular materials, and the top of the existing asphalt core wall base is flush with the dam foundation surface, it cannot protect the lower part of the dam body. When the middle dam surface flows, the dam body filling material will be washed away by the water flow, and the asphalt core wall will also be washed away, so the earth-rock dam with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B7/06E02B8/00
Inventor 王晓东王党在赵永刚冯军胡小红汤雪峰柏仲生梁娟
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE