A kind of construction method of concrete in the climbing corridor part of roller compacted concrete dam

A technology of roller compacted concrete and construction method, which is applied in sea area engineering, water conservancy engineering, infrastructure engineering, etc. It can solve the problems of long time for storage, complex construction process, slow construction progress, etc., and achieves easy promotion and use, hoisting means The effect of easy solution and fast warehouse preparation

Active Publication Date: 2022-07-05
SINOHYRDO ENG BUREAU 3 CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

These methods have many problems such as complex construction procedures, low construction efficiency, high construction cost, long time for warehouse preparation, and slow construction progress.

Method used

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  • A kind of construction method of concrete in the climbing corridor part of roller compacted concrete dam
  • A kind of construction method of concrete in the climbing corridor part of roller compacted concrete dam
  • A kind of construction method of concrete in the climbing corridor part of roller compacted concrete dam

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Embodiment Construction

[0047] like Figure 1 to Figure 6 As shown in the figure, a construction method of the concrete at the part of the roller compacted concrete dam climbing corridor of the present invention comprises the following steps:

[0048] Step 1. Layering of the RCC dam: Use the dam RCC layered pouring line 2 to layer the 13 parts of the dam climbing corridor of the RCC dam, and obtain multiple dam roller compactions from bottom to top. Concrete layer to be poured;

[0049] Then use the roller compacted concrete germ layer line 11 to layer the roller compacted concrete to be poured layer of the dam, and obtain a plurality of roller compacted concrete germ layers to be poured from bottom to top;

[0050] Among them, the dam climbing corridor 13 is arranged in the climbing direction;

[0051] Step 2: Concrete layered pouring at the climbing corridor of the RCC dam: perform layered pouring of multiple dam RCC layers to be poured from bottom to top, and obtain each layer of dam RCC pouring l...

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Abstract

The invention discloses a construction method for concrete at the part of the climbing corridor of a roller compacted concrete dam, comprising the steps of: first, layering the roller compacted concrete dam; When pouring the roller compacted concrete layer of any dam to be poured, the steps are as follows: 201. Set the control line of the corridor surface layer, 202. Install the prefabricated formwork and cover of the side wall of the corridor that meets the height of the two germ layers of RCC Slab formwork, 203. The first RCC pouring, 204, The formwork is extended forward, 205. The second RCC pouring, 206. Repeat 204 to 205 until the RCC pouring reaches the closing level, 207. Remove the formwork buttresses, and 208. Concrete the second-phase normal concrete pouring layer of the bottom surface layer of the pouring corridor. The template of the invention is prefabricated by upper and lower blocks, which is convenient and flexible, and the template assembly and the layer-by-layer laying and pouring of the roller compacted concrete germ layer are constructed synchronously.

Description

technical field [0001] The invention belongs to the technical field of concrete construction at the dam climbing gallery part, and particularly relates to a construction method for the concrete at the dam climbing gallery part of the roller compacted concrete. Background technique [0002] During the construction of the roller compacted concrete dam, due to the needs of dam curtain grouting, dam body drainage and operation and other functions, corridors are generally arranged in parallel along the dam axis in the dam body. Generally, it is arranged with the slope ratio of the bank slope and inclined to the slope. [0003] Due to the inclined climbing arrangement of the corridors at the bank slopes on both sides of the dam, the bottom and top slabs of the corridors need to be poured at the same section in a corridor with a pouring floor height (generally greater than 3m), which leads to the vertical construction of the corridors. The direct interference of formwork and rolle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B7/00E02B8/00E02D15/02
CPCE02B7/00E02B8/00E02D15/02Y02E10/20
Inventor 赵正平李朋王军完颜云飞王永周刘天冬
Owner SINOHYRDO ENG BUREAU 3 CO LTD
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