Rubber face rockfill dam and its construction method

A technology of face rockfill dam and construction method, applied in dams, barrages, water conservancy projects, etc., can solve the problems of low anti-seepage performance, open face joints, etc., and achieve the effects of high strength, simple construction and good plasticity

Inactive Publication Date: 2016-08-24
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the common problems of the existing rockfill dams, which are easily affected by temperature stress, foundation settlement and other factors, the joints of the panels are opened and broken, or the anti-seepage performance is not high. Flexible, anti-permeability and durability, simple construction, low cost, no need to consider the problem of opening and breaking of panel joints caused by factors such as temperature stress and foundation settlement

Method used

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  • Rubber face rockfill dam and its construction method
  • Rubber face rockfill dam and its construction method
  • Rubber face rockfill dam and its construction method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Rubber face rockfill dam, see figure 1 , including the main structure of the rock-fill dam. The main body of the rock-fill dam mainly includes rock-fill bodies (the upstream main rock-fill body and the downstream secondary rock-fill body), wave walls, curtain grouting layers and other structures, and the riverbed is paved with sand and gravel. see image 3 , on the water-facing surface of the main body of the rockfill dam, from the inside to the outside, there are transition layer, dry stone cushion, inner foam board cushion, rubber panel anti-seepage layer, outer foam board layer and bedding layer. Wherein, the rubber panel includes a skeleton on the inside and a rubber layer on the outside of the skeleton.

[0025] see figure 2 , the anti-seepage layer of the rubber panel is composed of a plurality of strip-shaped rubber panels adjacent to each other, and the middle expansion joint is arranged at the joint of the butt joint of the adjacent rubber panels;...

Embodiment 2

[0028] Embodiment 2: A construction method of a rubber face rockfill dam, comprising the main structure of the rockfill dam, after the cushion is laid on the surface of the transition zone of the main body of the rockfill dam, on the surface of the transition zone on the water-facing surface of the main body of the rockfill dam, on the compacted and leveled cushion after rolling Pave the anti-seepage layer of the rubber panel; the cushion layer includes a layer of dry stone layer and a layer of foam board layer, the dry stone layer is laid on the surface of the transition zone and compacted, the foam board layer is laid on the surface of the dry layer, and the rubber The anti-seepage layer of the panel is laid and fixed on the surface of the foam board layer; the anti-seepage layer of the rubber panel is composed of a plurality of adjacent rubber panels, and a wrinkled rubber expansion joint 13 is arranged at the butt joint of the adjacent rubber panels. Both ends of the corrug...

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Abstract

The invention discloses a rubber face rockfill dam and a construction method thereof. It comprises a main body structure of the rockfill dam. The water-facing surface of the main body of the rockfill dam consists of a transition layer, a dry stone cushion and an inner foam board cushion in sequence from the inside to the outside. , the anti-seepage layer of the rubber panel, the outer foam board layer and the bedding layer; the anti-seepage layer of the rubber panel is provided with an expansion joint in the middle; a base is arranged on the peripheral edge of the anti-seepage layer of the rubber panel, and the edge expansion joints are set, and a certain margin is left quantity. The rubber face rockfill dam of the present invention has good plasticity, flexibility, anti-permeability, simple construction, and low cost. Compared with the concrete face rockfill dam, the rubber face rockfill dam does not need to consider factors such as temperature stress and foundation settlement. Panel joints open, break, etc. The rubber face rockfill dam of the present invention has relatively high strength and high stability, and the rubber face rockfill dam is more suitable for the construction of middle and high dams.

Description

technical field [0001] The invention relates to the technical field of hydraulic engineering dam bodies, in particular to a rubber face rockfill dam and a construction method thereof. Background technique [0002] The existing rockfill dam is mainly composed of two parts: rockfill as the supporting body and impermeable water-permeable material as the anti-seepage body. According to the position of the anti-seepage body, it can be divided into core wall dam and inclined wall dam, and according to the properties of the anti-seepage body material, it can be divided into rigid anti-seepage body (such as concrete, reinforced concrete, wood board and steel plate, etc.) dam and plastic anti-seepage body (such as soil and asphalt concrete, etc.) dams. The rigid anti-seepage body has poor plasticity, high cost, and many problems such as opening and fracture of the panel joints caused by factors such as temperature stress and foundation settlement. As the age increases, the surface ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B7/06E02B3/16
CPCE02B3/16E02B7/06
Inventor 丁泽霖
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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