Method of preventing galleries in high concrete dam from arching and preventing bottom plate from cracking
A technology for concrete dams and corridors in dams, which is used in water conservancy projects, hydroelectric power stations, hydroelectric power generation, etc. The effect of cracking and improving working performance
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[0051] Example: Arch Dam
[0052] Step 1. Determine the allowable tensile strength and the change process of allowable tensile strength with time according to the concrete pouring of the dam, refer to Figure 4 The shown schematic diagram of allowable concrete tensile strength change;
[0053] Step 2: According to the structural characteristics of the dam body, the reinforcement situation, the pouring process, the sealing process of the arch dam transverse joints (gravity dam longitudinal joint grouting process, etc.), the temperature change process of the concrete and surrounding environment, the rising process of the reservoir water level and Linear expansion coefficient, elastic modulus parameters, etc., using linear non-linear finite element method or elastic mechanics method to obtain the stress distribution, yield zone distribution and the law of change over time in the dam corridor.
[0054] Arch dam profile and gallery location such as image 3 As shown, the height of the dam...
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