Polymer grout injected earth-rock dam and construction method thereof

A polymer and earth-rock dam technology, applied in dams, barrages, infrastructure engineering, etc., can solve problems such as inability to pass water, and achieve the effects of inhibiting sliding, simple construction, and good earthquake resistance

Active Publication Date: 2012-07-11
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to absorb the advantages of the earth-rock dam itself, and at the same time overcome the disadvantage of not being able to pass through the wate

Method used

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  • Polymer grout injected earth-rock dam and construction method thereof
  • Polymer grout injected earth-rock dam and construction method thereof
  • Polymer grout injected earth-rock dam and construction method thereof

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Embodiment Construction

[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The protection scope of the present invention is not limited by the specific embodiments, but by the claims.

[0030] like figure 1 , 2 , 3 and 4, a polymer grouting earth-rockfill dam, the surface of the downstream rockfill (2) of the core wall earth-rockfill dam is subjected to polymer grouting, and the surface of the downstream rockfill (2) of the face rockfill dam is subjected to high-polymer grouting polymer grouting, the entire rockfill (2) of the rockfill dam is subjected to polymer grouting or polymer grouting is performed on the upstream and downstream surfaces of the rockfill (2); The dam body is filled with layered grouting; the grouting holes of the high polymer grouting earth-rock dam are at least two rows, arranged in a triangular distribution, and the hole spacing is 3-5m; the high polymer grouting earth-rock dam is The crest o...

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Abstract

The invention discloses a polymer grout injected earth-rock dam and a construction method thereof. The polymer grout injected earth-rock dam comprises rockfill, polymer grout injected rockfill and a face slab. A dam body is built with the rockfill, with the rockfill and a clay core wall or with the face slab and the rockfill by filling. Overall dam grouting or grouting on the upstream surface and the downstream surface of the dam body are performed during filling. The problems that conventional earth-rock dam allows no passage of water, accelerations at the top of the dam are high, the rockfill mass is easy to loosen and the like are solved, and the polymer grout injected earth-rock dam is simple in structure and convenient in construction, has evidently improved seismic stability, has wide application prospect and is an economical and practical dam.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, in particular to a polymer grouting earth-rock dam and a construction method thereof. [0002] Background technique [0003] my country is located between the two major seismic belts in the world—the circum-Pacific seismic belt and the Eurasian seismic belt. It is squeezed by the Pacific plate, the Indian plate and the Philippine Sea plate, and the seismic fault zone is very developed. According to the data displayed by the China Earthquake Administration, there were 52 major earthquakes above magnitude 6 in my country from 1976 to the end of 2007, of which there were 25 earthquakes of magnitude 5 and above 4 in the east in 2007, of which magnitude 6~7 9 up. Due to the needs of economic construction and hydropower resource development, it is inevitable to build high earth-rock dams in strong earthquake areas. Once an accident occurs, the consequences will be disastrous. The...

Claims

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Application Information

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IPC IPC(8): E02B7/06E02D15/00
Inventor 杨贵刘汉龙陈育民丁选明于陶
Owner HOHAI UNIV
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