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Reinforcing structure of arch-dam force-resisting body foundation

A technology for foundation reinforcement and arch dams, applied in infrastructure engineering, arch dams, dams, etc., can solve problems such as poor effect, affecting the life of arch dams, rigidity, and deformation resistance that do not meet the requirements

Inactive Publication Date: 2017-03-15
POWERCHINA CHENGDU ENG
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  • Claims
  • Application Information

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Problems solved by technology

At present, there are many methods to deal with the foundation structure of the arch dam resistance body, but the effect is not good, especially for complex geological conditions with large-scale weak rock belts and low wave velocity rock mass, resulting in its rigidity and anti-deformation ability not meeting the requirements , affecting the life of the arch dam

Method used

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  • Reinforcing structure of arch-dam force-resisting body foundation

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] Such as figure 1 As shown, the foundation reinforcement structure of the arch dam 1 resistance body of the present invention is especially suitable for complex geological conditions where there are large-scale weak rock belt areas 3 and low wave velocity rock belt areas 4. The specific structure is: along the arch thrust direction of the arch dam 1 They are arch end foundation area 2, weak rock belt area 3, low wave velocity rock belt area 4, and grade III rock mass area 5. Grade III rock mass area 5 is an area with relatively good rigidity, and the rock mass in this area does not need or Simple reinforcement treatment can meet the use requirements of the arch dam 1 resistance body foundation, the arch end foundation area 2 is provided with a concrete pedestal 6, and the weak rock belt area 3 and the low wave velocity rock belt area 4 have been consolidated and grout...

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Abstract

The invention relates to an arch dam, particularly to a reinforcing structure of an arch-dam force-resisting body foundation. The reinforcing structure comprises an arch-end basic area, a weak-rock zone, a low-wave-speed rock zone and a III-class rock mass area, which are arranged in the direction of arch thrust of an arch dam in sequence, wherein a concrete pedestal is arranged in the arch-end basic area; the weak-rock zone and the low-wave-speed rock zone are subjected to reinforcing treatment of concrete consolidation grouting; grid-type hole-filled concrete structures are arranged in the weak-rock zone; force transmitting holes are formed in the direction of arch thrust of the arch dam; one end of each force transmitting hole is connected with the concrete pedestal, and the other end of each force transmitting hole penetrates through the weak-rock zone and the low-wave-speed rock zone and horizontally extends into the III-class rock mass area; and a drainage system is arranged in the reinforcing structure. The invention provides the reinforcing structure of the arch-dam force-resisting body foundation, which has good rigidity and high anti-deforming capability.

Description

technical field [0001] The invention relates to an arch dam, in particular to an arch dam resistance body foundation reinforcement structure; in addition, the invention also relates to an arch dam reinforcement method, in particular to a reinforcement method for an arch dam resistance body foundation structure. Background technique [0002] Arch dams are often built in complex geological conditions. Due to the existence of unfavorable geology such as deep faults, weak rock zones, low wave velocity rock mass and cracks in complex geological conditions, these geology are the main factors that affect the integrity, stability and permeability of the arch dam foundation. Therefore, the treatment of these unfavorable geology is the focus and difficulty of the foundation of the arch dam resistance body, and it is also the basic condition for the foundation structure of the arch dam resistance body to meet the comprehensive requirements of necessary stiffness and deformation resistan...

Claims

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Application Information

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IPC IPC(8): E02D27/40E02B7/12
CPCE02B7/12E02D27/40
Inventor 周钟王仁坤陈秋华潘晓红祝海霞饶宏玲唐忠敏张敬
Owner POWERCHINA CHENGDU ENG
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