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Composite material dam

A composite material and stone technology, used in dams, barrages, gravity dams, etc., can solve the problems of insufficient material strength, lack of economy, material waste, etc., and achieve simple and beautiful appearance, high construction efficiency, and anti-seepage. Good results

Inactive Publication Date: 2013-12-11
POWERCHINA ZHONGNAN ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But often because a large amount of dam concrete materials need to be purchased, it is not economical
Moreover, the internal stress of the dam body is small, and its material strength cannot be fully exerted, resulting in a huge waste of materials
[0005] Roller compacted rockfill dams and roller compacted concrete gravity dams have their own advantages and disadvantages, but there is no dam structure that combines the advantages of both
Because the integration of the two is not a simple project, if the gravity dam and rockfill dam are simply combined, there will be two problems: 1. The difference of elastic modulus, 2. The problem of anti-sliding ability between layers

Method used

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Embodiment 1

[0036] see figure 1 with figure 2 , the composite material dam includes a concrete dam shell 1, and the inner cavity of the concrete dam shell 1 is filled with rockfill material 4; between the inner wall of the concrete dam shell 1 and the rockfill material 4, a cushion layer 2 and a Transition layer 3.

[0037] The thickness of the concrete dam shell 1 is 2m-7m; the material of the concrete dam shell 1 is secondary roller compacted concrete.

[0038] The thickness of the cushion layer 2 is 2-4m, and the cushion layer 2 adopts continuously graded stone materials. In the continuously graded stone materials, the maximum particle diameter is 80-100mm, and the mass percentage content of particles with a particle diameter less than 5mm is 30%- 50%, and the mass percentage content of particles with a particle size less than 0.075mm is 4% to 8%.

[0039] The thickness of the transition layer 3 is 2-4m, and the transition layer 3 adopts continuously graded stone materials, and in ...

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Abstract

The invention discloses a composite material dam, comprising a concrete dam shell, wherein a rockfill material is filled in the inner cavity of the concrete dam shell; a cushion layer and a transition layer are orderly arranged from outside to inside between the inner wall of the concrete dam shell and the rockfill material. The composite material dam has the combined advantages of a rolled rockfill dam and a rolled concrete gravity dam, and is good in impermeability, small in size, simple and convenient for construction, low in manufacture cost, and simple and beautiful in appearance; the composite material dam is mainly applicable to low dams having the dam height of less than 50 m.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, and in particular relates to a composite material dam constructed jointly by roller-compacted concrete and roller-compacted rockfill materials. Background technique [0002] At present, in water conservancy projects, in order to improve construction efficiency and reduce project cost, roller compacted concrete gravity dams and roller compacted rockfill dams that can be mechanized are often used. [0003] Roller compacted rockfill dams can make full use of local materials, avoid long-distance transportation of bulky materials, have good seismic performance, and are easy to construct. However, because the upstream and downstream slopes of the dam body are relatively gentle, the dam is large in volume. Moreover, it is difficult to realize the overflow of the dam crest, and facilities such as flood discharge buildings need to be arranged on the bank, so it occupies a large are...

Claims

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Application Information

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IPC IPC(8): E02B7/10E02B7/06
Inventor 刘昊胡娟龚德瑜盛毅陈刚
Owner POWERCHINA ZHONGNAN ENG
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