High dam bank slope safety protection facility layout construction method

A construction method and safety protection technology, applied in the direction of coastline protection, etc., can solve problems such as insufficient reliability and not necessarily rigorous methods, and achieve the effect of simple protection facilities, low cost, and obvious economic benefits

Inactive Publication Date: 2016-10-12
杨毅
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  • Abstract
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Problems solved by technology

[0004] 1) Take interception measures, but the approach is not necessarily rigorous, the reliability is insufficient, and the temporary measures and permanent measures are not well combined

Method used

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  • High dam bank slope safety protection facility layout construction method

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Embodiment Construction

[0040] Referring to the accompanying drawings, a construction method for the arrangement of safety protection facilities on a high dam slope includes the following construction steps:

[0041] a. Measure before the start of the project to determine the position of the apex of the bank slope excavation and the position of the dam crest;

[0042] b. Set up ballast retaining wall and excavate rockfall ditch

[0043] 1) Set up a concrete ballast retaining wall 1 at 2~2.5m above the excavation apex of the bank slope;

[0044] The ballast retaining wall is located at 2~2.5m above the apex, above the foundation groove of the bank slope. Intercept, will not roll into the dam construction area, install anchor rods at the bottom of the ballast retaining wall, go deep into the bedrock, the bottom width of the ballast retaining wall is 0.8m, the top width is 0.3m, and the height is 1.5m. The concrete strength is C25, and the bottom is located on the bedrock The specific construction pro...

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Abstract

The invention discloses a high dam bank slope safety protection facility layout construction method. The method comprises the following steps: performing the measurement step before the project starts, determining the excavation vertex position of the bank slope and the dam top position; setting a ballast blocking wall, excavating a stone ditch, setting a concrete ballast blocking wall on the position above the excavation vertex of the bank slope by 2-2.5m, wherein the ballast blocking wall is on the position above the vertex by 2-2.5m and above the bank slope base groove, and the length of the ballast blocking wall is longer than the width of the bank slope excavation, the length of the ballast blocking wall at the upstream, downstream sides is longer than the width of the bank slope by 2m. The method is safe and reliable. The most outstanding advantage of the method is that the method brings psychological security feeling to the dam construction personnel, the technical route of the method is definite, the invested protection facilities are simple, the cost is low, and the economic benefit is obvious.

Description

technical field [0001] The invention relates to the field of safety protection during the construction of high dam bank slopes, and specifically belongs to a construction method for arranging safety protection facilities on high dam bank slopes. Background technique [0002] Reservoir dams are located in mountainous valleys. Before dam construction, the dam foundation and slopes on both banks must be excavated to form excavation slopes, especially for high dam construction, forming tall slopes. Unstable rocks often fall off the bank slope after excavation, and there are also loose earth and stones on the natural hillside above the excavation site, which roll down under the action of heavy rain. to a greater security risk. Therefore, it is necessary to take reliable safety protection measures. [0003] For the safety protection of high dam slopes, the following measures are often taken, and there are deficiencies: [0004] 1) Take interception measures, but the approach is...

Claims

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Application Information

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IPC IPC(8): E02B3/12
CPCE02B3/12
Inventor 杨毅
Owner 杨毅
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