Underground space exploitation excavation construction method

Abstract

The invention discloses an underground space exploitation excavation construction method comprising the following steps: firstly, respectively building a work well on two sides of a to-be-constructed underground space, and arranging a lifting platform on one end of each work well; dividing the upper underground space into a plurality of horizontal channels penetrating the two work wells, and using a pipe-jacking method to arrange a box culvert above each horizontal channel; secondarily, dismounting side plates of the box culvert, casting a concrete structure on the top board of the box culvert, and pressing permanent columns between two adjacent box culverts; making a plurality of soil holes on the bottom plate of the box culvert, digging downward to excavate earthwork, building a middle plate on the bottom of the upper underground space, dismounting the bottom plate of the box culvert, digging downward so as to excavate earthwork to the bottom plate elevation, and casting a bottom board; finally, dismounting temporary columns, and casting permanent structure poles. The underground space exploitation excavation construction method can improve construction efficiency, can effectively reduce underground space construction influences on existing facilities and surrounding environments, thus effectively preventing landslide accidents, and greatly improving construction safety.

Description

technical field [0001] The invention relates to the technical field of construction for underground space development, in particular to a method for underground excavation construction for underground space development. Background technique [0002] With the rapid development of urban construction in our country, urban land resources are increasingly scarce. In order to improve the utilization rate of urban land resources, realize the multiple use of land, and promote the sustainable development of the city, the three-dimensional development of underground space under existing facilities such as urban green spaces, squares, roads, and pipelines has become a demand for urban construction and development trend. In order to reduce the impact on the existing facilities on the ground, it is increasingly necessary to use the underground excavation method. The underground excavation construction method refers to the direct excavation inside the foundation soil in urban constructio...

AI Technical Summary

Problems solved by technology

The construction of shallow burial and underground excavation method needs to be guided by the information obtained from monitoring and measurement to ensure the safety and quality of construction, especially in areas with soft soil and high water level, the implementation is difficult, the construction risk is high, and even landslides may occur, resulting in safety accidents. Moreover, it is easy to bring noise and dust pollution to the ground environment, which fails to meet the needs of actual construction.

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