Building method of concrete faced rockfill dam in karst development region

A face rockfill dam and construction method technology, applied in the field of foundation treatment and construction of face face rockfill dams, can solve problems affecting dam safety, uneven settlement, and affecting dam filling quality

Pending Publication Date: 2019-12-27
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this new technology has been improved efficiency compared with existing methods by adding other benefits such as increased energy production or reduced emissions from vehicles without compromising their performance.

Problems solved by technology

The technical problem addressed in this patented text relates how to improve the design of dam bases during excavation operations by ensuring proper placement of cushioning material at specific locations within these trenches without affecting their stability when placed on hardened ground surfaces such as rockside landscapes.

Method used

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  • Building method of concrete faced rockfill dam in karst development region
  • Building method of concrete faced rockfill dam in karst development region
  • Building method of concrete faced rockfill dam in karst development region

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Embodiment Construction

[0033] Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein.

[0034] The invention provides a method for constructing a face rockfill dam in a karst-developed area. Different from the traditional dam foundation treatment method, the dam foundation treatment in this method is divided into two types: the riverbed section and the left and right banks. The construction steps are as follows:

[0035] S1. Remove the surface soil, loose soil layer and boulders in the dissolution tank on the surface of the dam foundation;

[0036] S2, remove the undisturbed filling soil in the dissolution tank;

[0037] For the dam foundation of the riverbed section, follow the steps below;

[0038] S3. For the part

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Abstract

The invention provides a building method of a concrete faced rockfill dam in a karst development region. Compared with a conventional dam foundation treatment mode, a mode of the method provided by the invention is characterized in that the dam foundation basic treatment of the mode comprises two types: riverbed section dam foundation treatment and left and right bank dam foundation treatment; fortwo kinds of foundation surfaces, exposed water-eroded groove inner surface soil, loose soil layers and boulder stones need to be cleanly cleared; undisturbed filling soil capable of being cleared inwater-eroded grooves is cleared; and for conditions that the water-eroded grooves are narrow, and filling clay is difficult to clear in a local region, 30cm of reverse filter materials are filled andbuilt on the surface, and compaction treatment is performed. Similar problems of karst development, wide spreading of water-eroded grooves and stalagmites and clints, concrete faced rockfill dam foundation construction treatment of a gryke development region are solved. An obvious treatment mode is provided for conditions of exposed water-eroded grooves, stalagmites and clints and the like of thedam foundation. The treatment mode has the advantages that the treatment effect of the dam foundation basic surface can be effectively ensured; and adverse influence caused by nonuniform sedimentation due to a dam foundation problem on an anti-seepage body and a dam body is avoided.

Description

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Claims

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Application Information

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Owner STATE GRID CORP OF CHINA
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