Anchor mooring construction surveying method for contact network in tunnel

Abstract

The invention discloses an anchor mooring construction surveying method for a contact network in a tunnel. The contact network to be constructed is divided into a plurality of anchoring sections, wherein an anchoring section joint is arranged between two adjacent anchoring sections, and comprises an anchor mooring device, the anchor mooring device comprises a supporting device, a contact suspending device and a compensating device, and the supporting device is an anchoring arm fixed on the wall of the tunnel. An anchor mooring device is installed by adopting the following steps: installing the supporting device, namely, installing the anchoring arm of the currently installed anchor mooring device; and 2, installing the compensating device, namely, when the compensating device is installed, performing surveying and positioning by adopting a three-dimensional surveying rule, wherein the compensating device is installed by adopting the following processes, namely installing a front side pulley, laying the three-dimensional surveying rule, positioning a guide pulley and installing a compensating rope and a compensating pulley. The anchor mooring construction surveying method is simple, reasonable in design, relatively low in input cost, convenient to realize, good in use effect, and capable of solving the problems of inconvenience in use and operation, large workload, relatively high measurement difficulty, relatively large measurement errors, and the like in a conventional measurement method.

Description

technical field [0001] The invention belongs to the technical field of catenary construction in tunnels, and in particular relates to a method for measuring the anchoring construction of catenary in tunnels. Background technique [0002] The catenary is a high-voltage transmission line erected in a "zigzag" shape above the rail in an electrified railway for the pantograph to draw current. The catenary is the main frame of the railway electrification project. It is a special form of transmission line erected along the railway line to supply power to the electric locomotive. It is composed of contact suspension, support device, positioning device, pillar and foundation. The catenary is usually divided into many independent segments, which are called anchor segments. The bearing cables and contact lines at both ends of the anchor section are fixed on the lower anchor device. [0003] The electrified railway tunnel construction includes construction measurement, drilling, anch...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for measuring the anchorage construction of the catenary in the tunnel in view of the deficiencies in the above-mentioned prior art. The method has simple steps, reasonable design, low investment cost, convenient implementation and good use effect. It can solve the problems of inconvenient operation, heavy workload, high measurement difficulty and large measurement error existing in traditional measurement methods.

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