Subway tunnel two-shaft directional measurement structure and method

Abstract

The invention discloses a subway tunnel two-shaft directional measurement structure comprising a shaft and a forming pore, wherein the shaft and the bottom of the forming pore are communicated by a blind hole, a set of measuring device is arranged in each of the shaft and the hole, each measuring device comprises a supporting frame and a liquid storage tank, a positioning plate is arranged above each supporting frame, a door-shaped frame is arranged above each positioning plate, a pulley is arranged at the top of each door-shaped frame, and a wire rope penetrates from the top of each pulley, vertically penetrates through the corresponding door-shaped frame and the corresponding positioning plate downwards in sequence after pasting through the corresponding pulley and extends out below thecorresponding supporting frame. The invention has the beneficial effects that the forming pore is formed in the outer side of the shaft, and the two sets of measuring devices are adopted for performing four-point directional measurement, so that the measurement accuracy of the tunnel directional measurement is improved; and a four-level compensating computation method is adopted, so that the calculation accuracy of the tunnel directional orientation azimuth angle is improved.

Description

technical field [0001] The invention relates to the field of subway tunnel construction, in particular to a directional measurement structure and a measurement method for two wells of a subway tunnel. Background technique [0002] With the acceleration of urbanization in our country, the pressure brought by the increase of urban population to urban traffic is becoming more and more obvious. Therefore, underground transportation has become a new type of traffic route that large and medium-sized cities are trying their best to build, and it is also a new channel to alleviate traditional ground transportation in my country. The construction of underground transportation requires excavation of underground tunnels first. [0003] The applicant found that at least the following technical problems exist in the prior art: during the construction of an underground tunnel, connection measurement is indispensable, and through connection measurement, the above-ground and underground co...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a directional measurement structure and measurement method for the two wells of the subway tunnel in order to solve the above problems, so as to solve the technical problems such as large measurement errors and easy influence on the construction direction of the tunnel in the prior art when the tunnel construction is connected with the measurement.

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