Arch grate type reinforced concrete debris flow stop dam and construction method thereof

A reinforced concrete and debris flow technology, applied to debris flow retaining dams, the construction of the retaining dams, and the field of arched grid-type reinforced concrete debris flow retaining dams, can solve the problem of poor blocking impact resistance, large dam body volume, and high consumption of materials. and other problems to achieve the effect of improving overall stability, reducing costs and saving materials

Active Publication Date: 2018-02-16
LANZHOU JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practical applications, the block impact resistance of masonry gravity dams is poor, and shear failure is prone to occur, and the ...

Method used

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  • Arch grate type reinforced concrete debris flow stop dam and construction method thereof
  • Arch grate type reinforced concrete debris flow stop dam and construction method thereof
  • Arch grate type reinforced concrete debris flow stop dam and construction method thereof

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Embodiment Construction

[0017] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 with figure 2 As shown, the retaining dam of the present invention includes two arch foot foundations 3 and a plurality of retaining arch vertical connecting beams 2 arranged on both sides of the ditch. A blocking main arch ring 1, the blocking main arch ring 1 is arched, and the vault of the blocking main arch ring 1 faces the flow direction of the debris flow 5; there is a gap between two adjacent blocking main arch rings 1, and the blocking main arch ring The two ends of 1 are fixedly connected to the two arch foot foundations 3 respectively; multiple vertical connecting beams 2 of the retaining arch are arranged vertically side by side, and are fixedly connected with the main retaining arch circle 1, and the space between two adjacent retaining main arch circles 1 There is a gap, two adjacent blocking main arch rings 1 an...

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Abstract

The invention discloses an arch grate type reinforced concrete debris flow stop dam and a construction method thereof. The stop dam comprises a plurality of stop main arch rings, vertical connecting beams and arch foot foundations on the two banks of a channel. The two ends of the stop main arch rings are fixedly connected with the arch foot foundations correspondingly. A plurality of grate boxesare defined by every two adjacent stop main arch rings and every two adjacent stop arch vertical connecting beams, and a stop dam face is formed. According to the construction method, a foundation isexcavated, the bottom layer stop main arch rings, the arch foot foundations, the stop arch vertical connecting beams and the rest of stop main arch rings are sequentially constructed, and the arch grate type reinforced concrete debris flow stop dam is formed. According to the type of stop dam, original debris flow impact force perpendicular to a dam body is decomposed into pressure stress in the main arch ring direction, finally, the pressure stress is transmitted into rock soil bodies on the two banks of the channel, the anti-shear effect of a traditional stop dam is improved, a very good mechanics effect is achieved, and the integral stability, debris flow impact force resisting performance and anti-shear performance are improved; and an overflow port is not arranged, and the beneficialeffects that the structure is simple, safety and reliability are achieved, materials are saved, and cost is reduced are achieved.

Description

technical field [0001] The invention belongs to the technical field of mud-rock flow retaining facilities, and relates to a valley-type mud-rock flow retaining dam capable of resisting large solid matter, in particular to an arched grid type reinforced concrete mud-rock flow retaining dam; the present invention also relates to a retaining dam construction method. Background technique [0002] Barrier dam is a widely used facility in debris flow prevention and control engineering. It can control or increase the erosion base level of some parts of the ditch bed, and prevent the ditch bed from undercutting in the siltation area; intercepting a large amount of sediment above the dam site can change the nature of the debris flow. Reduce the discharge scale of debris flow; it can also widen the ditch bed and slow down the slope. Among them, the masonry gravity dam is a main type, and the masonry gravity dam is generally arranged in a straight line perpendicular to the main flow d...

Claims

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Application Information

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IPC IPC(8): E02B7/00E02B7/12
CPCE02B7/00E02B7/12
Inventor 侯小强
Owner LANZHOU JIAOTONG UNIV
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