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An analysis method for the influence of narrow V-shaped valley on the temperature control and anti-cracking of concrete in steep slope dam sections

An analysis method, temperature control and anti-cracking technology, applied in temperature control, electric temperature control, dams, etc.

Active Publication Date: 2021-04-16
华电福新周宁抽水蓄能有限公司 +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] Narrow V-shaped valleys are characterized by steep slopes on both banks. When pouring concrete on steep slopes, the concrete is bound by the steep slope bedrock, resulting in relatively large temperature stress. The temperature stress on the pouring blocks is closely related to crack prevention. , because there is currently no suitable analysis method to provide a systematic and scientific analysis method for concrete temperature control and crack prevention in steep slope dam sections

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  • An analysis method for the influence of narrow V-shaped valley on the temperature control and anti-cracking of concrete in steep slope dam sections
  • An analysis method for the influence of narrow V-shaped valley on the temperature control and anti-cracking of concrete in steep slope dam sections
  • An analysis method for the influence of narrow V-shaped valley on the temperature control and anti-cracking of concrete in steep slope dam sections

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Embodiment 1

[0043] A method for analyzing the influence of a narrow V-shaped valley on the temperature control and anti-cracking of concrete in a steep slope dam section specifically includes the following steps in sequence:

[0044] (1) Establish a 3D calculation model including the foundation and dam structure

[0045] The narrow V-shaped valley is selected as the research and analysis object. In this embodiment, three types of steep slope structures are selected for research. Refer to figure 1 with figure 2 As shown, the comparison diagrams of the three steep slope structure calculation models of a, b and c and the grid diagrams of the three steep slope structure calculation models are respectively established. Where a is model 1, steep type; b is model 2, general type; c is model 3, gentle type. In this embodiment, model a is established according to the inclination angles of the slopes on both sides of the V-shaped valley, and two comparison models b and c are established at the s...

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Abstract

The invention discloses an analysis method for the influence of a narrow V-shaped valley on the temperature control and anti-cracking of concrete in a steep slope dam section, relates to the technical field of hydraulic engineering, and comprises the following steps in sequence: establishing a three-dimensional calculation model including a foundation and a dam structure, forming Calculate the conditions, obtain the temperature and stress distribution of the dam concrete under the narrow V-shaped valley, analyze the temperature and stress of the dam concrete under different valley forms, and obtain the influence of the valley form on the maximum stress of the dam concrete scope. This analysis method provides a safe and scientific systematic analysis method for damming in narrow V-shaped valleys.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to an analysis method for the influence of a narrow V-shaped valley on the temperature control and crack prevention of concrete in a steep slope dam section. Background technique [0002] Narrow V-shaped river valleys are characterized by steep slopes on both sides. When pouring concrete on steep slopes, the concrete is bound by the steep slope bedrock, resulting in large temperature stress. The temperature stress on the pouring block is closely related to crack prevention. , because there is currently no suitable analysis method to provide a systematic and scientific analysis method for the temperature control and crack prevention of concrete in steep slope dam sections. [0003] In view of this, the present invention is proposed. Contents of the invention [0004] The purpose of the present invention is to provide an analysis method for the influence of na...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13E02B7/04G05D23/19G06F119/16
CPCE02B7/04G05D23/1931
Inventor 曾继坤周站勇刘东旭王振红汪娟辛建达侯文倩粘智光
Owner 华电福新周宁抽水蓄能有限公司