Hydraulic tunnel inverted arch operation trolley and inverted arch construction method

Abstract

The invention discloses a hydraulic tunnel inverted arch operation trolley and an inverted arch construction method. The hydraulic tunnel inverted arch operation trolley comprises a main beam, a plurality of templates and at least three rows of screw rods, wherein each of the templates comprises a first template body and a second template body, first template bodies are hinged with second template bodies, the plurality of templates are connected into a whole in a hinge mode, two tailstocks are arranged on the upper end of the main beam, two ends of each of the tailstocks are hinged with upper ends of two lifting oil cylinders respectively, lower ends of the two lifting oil cylinders are hinged with corresponding templates respectively, two control frames are arranged at positions on the main beam, which correspond to the two tailstocks, control frames are hinged with one end of a translation oil cylinder, the other end of the translation oil cylinder is hinged with the lifting oil cylinder which is located at the same end as the two tailstocks, lower ends of the three rows of screw rods are hinged with two ends and middle portions of templates respectively, and upper ends of the three rows of screw rods are hinged with the main beam. The hydraulic tunnel inverted arch operation trolley is simple to operate and capable of accelerating the construction schedule of a tunnel inverted arch and improving the quality of inverted arch construction.

Description

technical field [0001] The invention relates to a hydraulic tunnel inverted arch operation trolley and an inverted arch construction method used in highway, water conservancy, and railway tunnel projects. Background technique [0002] The inverted arch is one of the main components of the tunnel structure, and it is the lining foundation commonly used in tunnel construction at present. On the one hand, it must effectively transmit the pressure of the upper formation of the tunnel and the load on the road surface to the underground through the tunnel side wall structure, and on the other hand, it must also effectively resist the reaction force from the lower formation, so the inverted arch has a great impact on the stability of the entire tunnel It plays a vital role. Therefore, the inverted arch construction of the tunnel has become an important link in the entire tunnel construction process, and in the inverted arch construction process, the inverted arch operation trolley...

AI Technical Summary

Problems solved by technology

[0004] When using the above-mentioned inverted arch operation trolley to construct the inverted arch, since the various formworks are connected and integrated in a fixed connection, the formwork is difficult to locate when in use, and after the invert arch is constructed once, the formwork It needs to be disassembled and assembled as a whole to facilitate the next construction operation, so the labor input is large and the efficiency is low; in addition, the bearing capacity of the existing inverted arch formwork is not large enough, so that the length of the inverted arch in one construction is shorter and the extension The construction time of the inverted arch is shortened; and because the bearing capacity is not large enough, the entire inverted arch formwork is easily deformed during the inverted arch construction process, which greatly reduces the supporting effect on the formwork and easily causes the formwork to shift, thereby affecting the construction of the inverted arch quality after

Images