Multifunctional measurement base station structure for subway construction

Abstract

The invention provides a multifunctional measurement base station structure for subway construction. The measurement base station structure comprises a bearing platform which is poured in a foundationpit of an excavated ground surface, an abutment main body is arranged on the upper side of the bearing platform, and the abutment main body and the bearing platform are of an integrated pouring structure; a plane measuring point is arranged above the abutment main body, an elevation measuring point is arranged at the portion, on the outer side of the abutment main body, of the bearing platform, and a densely distributed net is arranged around the upper end of the abutment main body and installed on the abutment main body through a densely distributed net frame; one side of the abutment main body is provided with a staircase, one end of the staircase is disposed at the upper end of the abutment main body, the other end of the staircase is installed on the ground surface, and the staircaseis provided with a protective railing. The measurement base station structure adopts simple equipment, limited monotonous operation and safety risks are changed, the working efficiency and precision of measurement work are improved, and a powerful guarantee is provided for subsequent precise construction.

Description

technical field [0001] The invention relates to the technical field of subway construction measurement equipment, in particular to a multifunctional measurement base station structure for subway construction. Background technique [0002] In general subway civil construction, in order to facilitate the survey and design tasks during construction, it is necessary to add encryption control points during the construction of underground excavation and open excavation stations, the start of shield tunnel construction and the excavation process, so as to control the main axis of the station And the construction accuracy of tunnel excavation and tunneling. The measurement method of encrypted points is generally carried out by using closed wires and attached wires. By using the first-level control point of the pile as a known point, the encrypted control points are used to form a closed loop or an attached line. Since the subway construction is generally located in the bustling are...

AI Technical Summary

Problems solved by technology

The common encryption point is installed on the roof of the building, which causes troubles in use. The measurement pitch angle is too large to affect the measurement accuracy. It is easy to be rolled over by heavy vehicles on the road and cause settlement. Generally, the forced centering pile is used as a fixed height point. position, resulting in limited visibility conditions, greatly reducing work efficiency and affecting the construction progress of the entire project

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