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A platform for research: civil engineering, architecture and urbanism
Construction method for overall reverse operation of ultra-large type deep foundation pit center island type alternative earth excavation
The invention particularly discloses a construction method for an overall reverse operation of an ultra-large type deep foundation pit center island type alternative earth excavation. The construction method comprises the steps: constructing containment and water-stopping structure, an engineering pile, a upright post and a temporary upright post along the periphery of the foundation pit; entirely excavate a basement level until the below of the bottom elevation of a top slab of the basement; erecting and constructing the top slab of the basement, and reserving an earthwork vehicular exit and a slope; excavating soil at the zone around the basement layer until the bottom elevation of a floor slab of the basement; sloping and excavating the soil body at the center island zone of the basement until the below of the bottom elevation of the basement floor slab, erecting a template and constructing the floor slab of the basement, and reserving the earthwork vehicular exit and the slope; excavating the soil of the zone around the bottom layer until the bottom elevation of a bottom plate of the basement, constructing a cushion layer and the basement bottom plate at the surrounding zone; constructing the cushion layer and the basement bottom plate at the center island zone. The construction method for the overall reverse operation of the ultra-large type deep foundation pit center island type alternative earth excavation uses the foundation pit as a whole body to reversely construct, and is good for speeding up the construction schedule; an earthwork truck enters the foundation pit to take soil, so that the earth excavating efficiency is improved; the basement floor slab is poured by erecting the formwork, the appearance quality of the floor slab is improved.
Construction method for overall reverse operation of ultra-large type deep foundation pit center island type alternative earth excavation
The invention particularly discloses a construction method for an overall reverse operation of an ultra-large type deep foundation pit center island type alternative earth excavation. The construction method comprises the steps: constructing containment and water-stopping structure, an engineering pile, a upright post and a temporary upright post along the periphery of the foundation pit; entirely excavate a basement level until the below of the bottom elevation of a top slab of the basement; erecting and constructing the top slab of the basement, and reserving an earthwork vehicular exit and a slope; excavating soil at the zone around the basement layer until the bottom elevation of a floor slab of the basement; sloping and excavating the soil body at the center island zone of the basement until the below of the bottom elevation of the basement floor slab, erecting a template and constructing the floor slab of the basement, and reserving the earthwork vehicular exit and the slope; excavating the soil of the zone around the bottom layer until the bottom elevation of a bottom plate of the basement, constructing a cushion layer and the basement bottom plate at the surrounding zone; constructing the cushion layer and the basement bottom plate at the center island zone. The construction method for the overall reverse operation of the ultra-large type deep foundation pit center island type alternative earth excavation uses the foundation pit as a whole body to reversely construct, and is good for speeding up the construction schedule; an earthwork truck enters the foundation pit to take soil, so that the earth excavating efficiency is improved; the basement floor slab is poured by erecting the formwork, the appearance quality of the floor slab is improved.
Construction method for overall reverse operation of ultra-large type deep foundation pit center island type alternative earth excavation
ZHAO JIANLI (author) / YUE QIXIAN (author) / LIANG YONG (author) / WEN KEBIN (author)
2015-05-27
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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