Shield segment manufacturing mold for tunnel model test

Abstract

The invention discloses a shield segment manufacturing mold for a tunnel model test. The shield segment manufacturing mold comprises a top sealing part, a first adjacent part, a first standard part, a second standard part, a third standard part and a second adjacent part which are sequentially connected into a circle. According to the structure of the top sealing part, a top sealing block cover plate is fixed to a top sealing block. According to the structure of each adjacent part, an adjacent block cover plate is fixed to each adjacent block. According to the structure of each standard part, a standard block cover plate is fixed to each standard block. Partition plates are fixed between the parts. The top sealing block, the adjacent blocks, the standard blocks, the top sealing block cover plate, the adjacent block cover plates, the standard block cover plates and the partition plates are all provided with a plurality of bolt holes. A bent hole penetrates into every two adjacent bolt holes. The defects that in the prior art, lining segments cannot be manufactured in a blocked mode, and the stress condition of annular steel bars and longitudinal steel bars between the lining segments cannot be measured are overcome. Shield segments on the site can be simulated accurately, and models which are different in size but completely identical in structure can be manufactured according to the model similarity ratio.

Description

technical field [0001] The invention relates to the field of laboratory preparation molds for shield tunnel model segments such as subways, water transportation, and municipal engineering, and in particular to a tunnel model test shield segment preparation mold. Background technique [0002] With the continuous investment in infrastructure projects in our country, many cities are carrying out large-scale subway construction and municipal engineering construction. In addition, due to the uneven distribution of water resources in our country, there is an extreme water shortage in the north. In order to alleviate this situation, our country has built a large number of South-to-North Water Diversion Projects. Therefore, it is necessary to build many water delivery tunnels. In order to ensure the rationality and safety of such projects, a large number of theoretical calculations and laboratory simulation experiments are required. [0003] For a long time, in the model tests of s...

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Problems solved by technology

According to the actual site investigation, the damage position of the shield segment is mostly in the concrete at the bolt interface due to the tensile force, but the above experimental model cannot achieve the simulation effect. In addition, the longitudinal bolts of the shield segment are actually Pull force cannot be obtained directly

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