Orientation distributing device and method for ventilation volume of tunnel construction

Abstract

The invention discloses an orientation distributing device and method for ventilation volume of tunnel construction. The device comprises a distributing box and a mounting support for horizontally mounting the distributing box; the distributing box comprises a distributing box body of which the front part and the rear part are opened, an air outlet structure arranged at the front side of the distributing box body and an air inlet structure arranged at the rear side of the distributing box body; the air inlet structure comprises left and right air inlet joints which are mounted together; the air outlet structure comprises left and right air outlet joints which are mounted together; the inside of the distributing box body is divided into left and right air supply channels by a separating device; and the separating device is vertically arranged and comprises a separating seat fixed in the distributing box body, a movable door and a swing driving device. The method comprises the following steps: firstly, mounting a ventilation system of a tunnel; and secondly, performing orientation distribution of the ventilation volume. The orientation distributing device disclosed by the invention is reasonable in design, simple and convenient to use and operate and good in service effect; and the ventilation volumes of two tunnel holes in the construction process can be flexibly distributed simply and conveniently, and the utilization rate of ventilation equipment is improved.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a tunnel construction ventilation air volume guiding distribution device and method. Background technique [0002] When the tunnel is constructed with double tunnels, such as the construction of double front tunnels or the construction of front tunnels and parallel pilot tunnels (referred to as flat pilot tunnels for short), the tunnel ventilation often adopts the roadway ventilation system. According to previous construction verification, it is relatively mature. Ventilation means for tunnel construction. However, these traditional ventilation methods all require high-power ventilation equipment for the two tunnels. During construction, the two tunnels are circulated separately, and there is often a time period when one tunnel hole is ventilated and the other tunnel hole is not ventilated (or low-power ventilation). , This kind of time will often happen....

AI Technical Summary

Problems solved by technology

Therefore, the existing tunnel construction ventilation technology has the following defects and deficiencies: First, when the tunnel is constructed with two tunnels, the current common tunnel ventilation method mostly adopts the roadway ventilation system, which requires separate ventilation pipelines to reach the respective tunnel faces for supply. Fresh air, this ventilation method needs to be equipped with axial flow fans separately, the overall ventilation system of the tunnel has a large power configuration, and the power supply system has a large power configuration; When there is no need for ventilation or low-power ventilation for racks or charges, the axial flow fan in one tunnel hole needs high-power full-load ventilation, while the axial flow fan in the other tunnel hole does not need ventilation or low-power ventilation, although It is said that it is a tunnel ventilation system, but the axial flow fans cannot work together, and there is a waste of equipment configuration power

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