Method for connecting rigid body and flexible body of dam foundation of reservoir

A connection method and rigid body technology, which is applied in water conservancy projects, sea area projects, buildings, etc., can solve problems such as inconvenient implementation, firmness of connection, insufficient tightness, poor anti-seepage effect of reservoir dam foundation, etc., and achieve good tightness Effect

Inactive Publication Date: 2015-07-08
XINJIANG INST OF WATER RESOURCES & HYDRAULIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing connection method is not only inconvenient to implement, but also the firmness and tightness of the connection are not good enough, resulting in poor anti-seepage effect of the reservoir dam foundation

Method used

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  • Method for connecting rigid body and flexible body of dam foundation of reservoir
  • Method for connecting rigid body and flexible body of dam foundation of reservoir
  • Method for connecting rigid body and flexible body of dam foundation of reservoir

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Embodiment Construction

[0022] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0023] The connection method between the rigid body and the flexible body of the reservoir dam foundation of the present invention adopts the lap joint method, and the slot hole of the thin concrete cut-off wall at the lap joint is set as a second-stage slot hole. When the thin concrete cut-off wall is poured and constructed, the steps are as follows :

[0024] First, refer to figure 1 , all the first-stage slots 1 and second-stage slots 3 of the thin concrete anti-seepage wall section are opened, and the concrete pipe 2 is buried at the transition between the first-stage slot 1 and the second-stage slot 3, and then the first-stage slot The first stage concrete 5 is poured in the hole 1.

[0025] Second, refer to figure 2 , when the first-stage concrete 5 of the thin concrete cut-off wall section reaches its strength, use a percussion...

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Abstract

The invention discloses a method for connecting a rigid body and a flexible body of a dam foundation of a reservoir. A lapping-joint method is adopted. In the process of pouring of a thin concrete cutoff wall, the method is characterized by including the steps of drilling out a first-stage slotted hole and a second-stage slotted hole in the thin concrete cutoff wall completely, burying a concrete pipe in the transition segment between the first-stage slotted hole and the second-stage slotted hole, pouring first-stage concrete into the first-stage slotted hole, breaking the position, close to the second-stage slotted hole, of the concrete pipe to form a cavity, drilling out a perpendicular film-laying segment slotted hole in the position, close to the second-stage slotted hole of the thin concrete cutoff wall, placing a vertical film rolling pipe and then spreading out and laying plastic film, filling slurry into the film-laying segment slotted hole, placing guide pipes with the same number in the two sides of the plastic film respectively, and pouring second-stage concrete below the slurry in the film-laying segment slotted hole. The method for connecting the rigid body and the flexible body of the dam foundation of the reservoir has the advantages of being simple and easy to implement, the joint between the rigid body and the flexible body is good in soundness and tightness, and therefore a tight perpendicular seepage-preventing system can be effectively formed.

Description

technical field [0001] The invention relates to a vertical anti-seepage treatment method for a reservoir dam foundation, which is mainly aimed at the treatment method for the connection between a rigid body and a flexible body, and belongs to the field of water conservancy construction. Background technique [0002] The lithology of reservoir dam base transitions from sandy gravel to fine sand and then to low liquid limit silt. The vertical anti-seepage design of dam foundation usually adopts rigid thin concrete cut-off wall and flexible plastic film for anti-seepage. To infiltrate the whole, it is necessary to connect the two materials tightly. However, the existing connection method is not only inconvenient to implement, but also the firmness and tightness of the connection are not good enough, resulting in poor anti-seepage effect of the reservoir dam foundation. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B3/16
Inventor 戚印鑫孙娟李江峰柯春光朱斌德杨玲曹玉勤张磊陈威买买提江
Owner XINJIANG INST OF WATER RESOURCES & HYDRAULIC POWER
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