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Polymer grout injected earth-rock dam and construction method thereof

A construction method and earth-rock dam technology, which is applied in dams, barrages, and infrastructure engineering, etc., can solve problems such as inability to pass water, and achieve the effects of inhibiting sliding, low price, and improving stability

Active Publication Date: 2015-04-08
HOHAI UNIV
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] 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 water, to invent a polymer grouting earth-rock dam and its construction method that is simpler in structure than the concrete dam, convenient in construction, low in cost, economical and practical

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

[0024] 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.

[0025] Such as 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 The whole rockfill (2) of the rockfill dam carries out polymer grouting or polymer grouting is carried out on the upper and lower 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 of the dam is reinforced wi...

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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, and in particular relates to a construction method of a polymer grouting earth-rock dam. Background technique [0002] 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 25 occurred in 2007 with magnitude 5 and above magnitude 4 in the east, 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. Therefore, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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