A kind of test device and test method of curved pipe curtain machine

Abstract

The invention discloses a device and method for testing a curved pipe-roofing machine, and solves the problems that the curved pipe-roofing machine in the prior art is difficult in jacking, deslaggingand posture control, and there is shortage of theory and experiment basis. The device comprises a main unit, a steel pipe joint, and a jacking mechanism. A pile foundation for supporting the jackingmechanism is disposed on the ground, and the jacking mechanism is fixedly connected with the foundation pile. The foundation pile is provided with a cantilever suspension, and the main unit is disposed at one end of the steel pipe joint, wherein the other end of the steel pipe joint passes through the jacking mechanism. The jacking mechanism is provided with a guide mechanism and auxiliary equipment. The main unit is connected with the auxiliary equipment through a pipe in the steel pipe joint, and the guide mechanism is corresponding to the steel pipe joint. The cantilever suspension is disposed at one side of the steel pipe joint, and is connected with the steel pipe joint. According to the invention, the working conditions of underground excavation are simulated through a ground test, thereby achieving the testing of the operation performances of all systems of the curved pipe-roofing machine and the verifying of the construction precision and design reasonability while achieving the jacking of the curved steel pipe joint.

Description

Technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a curved tube screen machine test device and a test method thereof. Background technique [0002] The curved tube curtain method is a new type of trenchless underground excavation that uses a small tube curtain machine to excavate the soil. The steel pipe joint is pushed into the soil at the rear to form advanced support with the freezing method, and then the main structure of the construction is excavated. Space construction technology, for underground projects with shallow depth, irregular cross-section, large lateral span, and complex geological conditions, such as subway stations, underground shopping malls, subway connecting passages, tunnel diversion junctions, etc., it has less ground environmental impact than other construction methods , The advantages of strong adaptability and high safety have a wide range of application prospects. [0003] At present, the linear ...

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Problems solved by technology

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a curved pipe curtain machine test device and its testing method, which are used to study the performance of each system of the curved pipe curtain machine, and to explore the jacking force and the variation law of various parameters during the curved jacking process. It solves the problems in the prior art of the curved tube screen machine's jacking, slag discharge, attitude control and lack of theoretical and experimental basis

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