Method for excavating adjacent foundation pits from shallow to deep without coordinating construction progress
The invention relates to the technical field of foundation pits, and discloses a shallow-first and deep-second excavation method for adjacent foundation pits without coordination of construction progress, which comprises the following steps: on the premise that the construction progress cannot be co...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of foundation pits, and discloses a shallow-first and deep-second excavation method for adjacent foundation pits without coordination of construction progress, which comprises the following steps: on the premise that the construction progress cannot be coordinated and shallow-first and deep-second excavation is needed, obtaining the anti-overturning stability of the foundation pit excavated firstly and the position of the foundation pit excavated firstly due to excessive settlement caused by the foundation pit excavated later; soil bodies with certain thickness are restrained at the positions, and mutually independent foundation pit supports are matched, so that restrained soil bodies and sensitive soil bodies with interfaces on stress are formed. The strength of settlement caused by later excavation of the foundation pit is not changed, and the settlement is concentrated in the sensitive soil body, so that the situation that the foundation pit is excavated firstly |
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