The construction method and structure of the side excavation excavation of shield tunneling with the combination of origin shaft and hoisting shaft in underground excavation construction

Abstract

The invention relates to a shied side original tunneling construction method and structure in combined with subsurface excavated construction of an original well and a hoisting well. The shield original well and the hoisting well are constructed through a subsurface excavated construction method, and the shield original well and the hoisting well are connected through a subsurface excavated channel. Diverging lines are arranged in the channel connected with the hoisting well and the original well, and an equipment turn-back channel is arranged on the other side of the hoisting well. Before shield originating, a shield machine is hoisted in position through the original well, and then back-up equipment is hung downward into the connecting channel through the hoisting well, and connected in position with the shield machine. After shielding originating, slag tapping and hoisting of duct pieces are carried out through the hoisting well until the construction in a shield zone is finished. According to the shied side original excavation construction method and structure combined with the subsurface excavated construction of the original well and the hoisting well, the disturbance caused by construction of a traditional shield well to transportation and pipelines on the ground is effectively avoided, the period of shield originating is greatly shortened, therefore, the efficiency of shield construction is improved, and destruction to the city environment is reduced.

Description

technical field [0001] The invention relates to a construction method for shield construction in urban rail transit engineering. Background technique [0002] As the government has increased investment in infrastructure, especially in the field of urban rail transit construction in recent years, the construction wave across the country is in full swing. How to build high-quality rail transit in a safe, economical and efficient manner has always been a part of the construction Issues that all parties are considering from time to time. As an important part of the urban rail transit project, the interval is also inseparable from the selection of safety, economy, and high efficiency. Because the shield construction method has strong stratum adaptability, ground subsidence is controllable, and the excavation construction has little impact on the environment and is safe. High advantages, as a common construction method in section construction, are more and more favored by enginee...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a shield excavation construction method and structure combining the originating shaft and hoisting shaft of underground excavation construction, so as to solve the problem of setting up the originating shaft in the area with complex environment and adopt the shield method for construction, effectively reducing the The influence of the complex environment on the construction of the shield greatly increases the adaptability of the shield construction method, and effectively improves the safety and efficiency of the subway section engineering construction and other technical issues

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