Construction structure and construction method of channel structure

Abstract

The invention discloses a construction structure of a channel structure. A box culvert is adopted to construct a soil mass for building the channel structure so as to form the channel structure, a pushing area and a receiving area are respectively arranged at the two ends of the soil mass for building the channel structure, and a composite rebar adding curtain is arranged at the outer side of the soil mass for building the channel structure. The invention also discloses a construction method of the channel structure. Due to the additional arrangement of the composite rebar adding curtain, an original soil mass around the box culvert can be isolated, thereby avoiding the generation of a back earth effect of the box culvert during jacking, and effectively reducing the influence to a neighboring environment. Furthermore, when a circle of closed composite rebar adding curtain is formed at the periphery of the mass body for building the channel structure, the composite rebar adding curtain can play a role of stopping water, thus effectively reducing construction risk caused by underground water. In addition, the composite rebar adding curtain can be constructed by adopting conventional methods such as horizontal reinforcement, consolidated grouting and the like, thus having low requirements on construction technology; and the construction can be conducted by adopting conventional equipment, and special construction equipment is not needed, thus having good economical efficiency.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction structure and a construction method of a channel structure. Background technique [0002] With the development of economy and the acceleration of urbanization, the phenomenon of traffic congestion in my country's cities is becoming more and more serious, which has affected people's normal life. The construction of underground three-dimensional traffic is an effective way to improve the efficiency of urban road network and traffic conditions. Through the long-term efforts of engineers and technicians, a large number of construction methods for underground three-dimensional traffic space structures have been formed, such as open cut method, shield method, pipe jacking method, box culvert method, pipe curtain method, pipe shed method and double box culvert jacking. Replacement tube curtain method, etc. [0003] The open cut method is a method in which ...

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Problems solved by technology

[0009] However, these construction methods have certain limitations, and it is difficult to fully meet the needs of engineering construction.

The open cut method has a great impact on the environment, large investment in pipeline and traffic overturning, and high overall cost; the shield method has strict requirements on the thickness of the overlying soil, and the construction of temporary facilities (working wells) requires a lot of investment and high construction costs; the structural section of the rectangular pipe jacking method The size and shape are limited by the existing size of the pipe jacking machine, and the engineering adaptability is poor; the steel pipes of the pipe curtain method and the pipe shed method cannot be reused, the material consumption is large, and they are sensitive to geological conditions, so the application is greatly restricted; while the box culvert method The method of jacking and double-mounting pipe curtain replacement involves more equipment and pipe joints, resulting in many construction procedures and long periods

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