Earthwork Excavation Method of Top-down Method in Basement

Abstract

The invention discloses a basement earth excavation method adopting a reverse construction method. The basement earth excavation method comprises steps as follows: the plane positions of layers of earth outlets of each layer of beam and slab structure of a basement are gradually staggered, earthwork excavated from an excavating construction layer on the lowest layer of the basement is stacked below the earth outlet of the beam and slab structure above the construction layer, an excavator arranged on the edge of the earth outlet of each layer of beam and slab structure excavates the earthwork below the earth outlet to the lower part of the earth outlet of the upper beam and slab structure, and a mound is formed. Therefore, the earthwork excavated from the lowest construction layer is carried by the excavator in a layer-to-layer relay manner to be transferred above the top beam and slab structure of the basement for truck loading and transportation. With the adoption of the excavation mode and the earthwork transportation mode, the application of a low-efficiency excavator with an extension jib is avoided, and the efficiency bottleneck caused by the application of the excavator with the extension jib is solved.

Description

technical field [0001] The invention relates to a building construction method, in particular to a basement earthwork excavation method by reverse method. Background technique [0002] In the construction process of multi-storey basements such as municipal and large-scale public buildings, the basement is usually excavated by the reverse method. In reverse construction, the underground diaphragm wall or other supporting structures are usually constructed along the axis of the basement of the building or around it, and at the same time, intermediate support piles and columns are constructed at relevant positions inside the building to bear the self-weight and construction load of the upper structure before the bottom plate is sealed during the construction period. support. Then construct the beam-slab floor structure on the first floor as the support of the underground diaphragm wall with high rigidity, and then excavate the earthwork and pour the underground structure of ea...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a basement upside-down earthwork excavation method, which can solve the problem of low efficiency of the long-arm excavator in the prior art when the long-arm excavator is used to excavate the earthwork at the bottom of the basement to the ground

Images