Three-pipe culvert incremental launching construction device and method

Abstract

The invention discloses a three-pipe culvert incremental launching construction device and method. The construction device comprises an initial incremental launching equipment air compressor, a control valve and a plurality of sets of lining rubber rings; and the construction method comprises an initial incremental launching stage and a three-pipe incremental launching stage. During the initial incremental launching stage, a lining of the culvert entrance section is incremental launched for a distance by a hydraulic cylinder and rubber rings and enters into the three-pipe incremental launching stage; and after entering into the three-pipe incremental launching stage, every three linings are divided into a group and alternately move forwards under the pressure of the recirculate selected three tubes. According to the three-pipe method culvert incremental launching construction device and construction method, the obstruction of the culvert length to a traditional construction method is overcame, the movement of the hydraulic cylinder caused by a traditional incremental launching construction method is avoided, the culvert incremental launching construction is promoted to develop in the direction of mechanization, and the input of the linings is continuous. Therefore, the influence of the construction method on the culvert, the uplink rail of culvert and the road is greatly reduced.

Description

[0001] Technical field: [0002] The invention belongs to the field of tunnel construction, and in particular relates to a three-pipe method culvert jacking construction device and construction method. [0003] Background technique: [0004] With the development of highway transportation, there are more and more examples of roads and sidewalks passing under roads and railway lines, and the problems faced by culvert engineering are becoming more and more obvious. For example, the length of culverts has become longer, and construction can be carried out without affecting the upstream traffic line. wait. At present, the construction of culverts mainly relies on the method of hydraulic cylinder jacking. Practice shows that this method has the following disadvantages: [0005] 1. Due to the limited stretching length of the hydraulic cylinder, if the length of the culvert is large, it is necessary to continuously add pads behind the hydraulic cylinder to achieve the purpose of pushi...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a three-pipe method culvert pushing construction device and construction method for the defects or deficiencies of the existing construction methods. This method divides every three linings equipped with rubber rings into a group, and clever Three pressure tubes are used to alternately intake and exhaust, so that the three linings in each group can advance alternately

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