Inverted siphon engineering construction method

Abstract

The invention discloses an inverted siphon engineering construction method which is used for constructing an inverted siphon tunnel. The construction method comprises a tunnel excavation method and alining pouring method. The tunnel comprises an outlet pond hole, an inlet pond hole, a horizontal section and an inclined pipe section. The tunnel excavation method comprises an excavation method anda blasting method. The excavation method comprises the steps that firstly, the outlet pond hole is excavated, then the inclined pipe section and the horizontal section are excavated, and finally the inlet pond hole is excavated. The blasting method comprises the steps that the tunnel is blasted before excavation, and the blasting steps are that firstly, a pilot tunnel is excavated to ascertain front geological conditions, wherein the pilot tunnel is located below the tunnel to be excavated; secondly, muck removal treatment is conducted on the pilot tunnel, and muck is conveyed out of the pilottunnel through a muck conveying vehicle; thirdly, drilling holes are drilled in a to-be-excavated surface to be filled with blasting explosives, at least two circles with different diameters are defined by the drilling holes, and meanwhile, the drilling holes which are horizontally distributed are further included; and fourthly, after blasting, the muck is conveyed out of the tunnel through the muck conveying vehicle.

Description

technical field [0001] The invention relates to the field of inverted siphon engineering, in particular to a construction method for inverted siphon engineering. Background technique [0002] With the advancement of science and technology, the problem of uneven distribution of water sources has become prominent. For arid areas, it is particularly important to build long-distance canals or waterways to dispatch water from areas with abundant water sources to water diversions and downstream along the way. When the channel encounters a road or a river ditch that crosses the plane, it is usually solved by the inverted siphon technology, so that the water passes under the road or the ditch. The inverted siphon project has the advantages of convenient construction and low cost. Inverted siphon technology has been used in many places in my country, and inverted siphon projects have been arranged to transmit water resources through inverted siphon tunnels in straight and inclined s...

AI Technical Summary

Problems solved by technology

[0009] 1. The pouring valve of the prior art causes sewage to flow sideways during cleaning, making it difficult to have a good cleaning method to collect sewage

[0010] 1. In the construction of inverted siphon engineering in the prior art, direct excavation often fails to ascertain the geological conditions ahead when excavating the tunnel, and the blasting effect is not good

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