Vacuum support excavation method suitable for deep foundation pit in complex stratum close to existing building

Vacuum support excavation method suitable for deep foundation pit in complex stratum close to existing building

The invention discloses a vacuum support excavation method suitable for a deep foundation pit in a complex stratum close to an existing building. The vacuum support excavation method comprises the steps that stand column piles are arranged in a soil body of the wall of the foundation pit; a vertical...

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Hauptverfasser: YANG ZHIJUN, LIN HONGNENG, WANG KAI, LIU YUANFENG, LI HONGXIN, ZHANG LE
Format: Patent
Sprache:chi ; eng
Schlagworte:
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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creator YANG ZHIJUN
LIN HONGNENG
WANG KAI
LIU YUANFENG
LI HONGXIN
ZHANG LE
description The invention discloses a vacuum support excavation method suitable for a deep foundation pit in a complex stratum close to an existing building. The vacuum support excavation method comprises the steps that stand column piles are arranged in a soil body of the wall of the foundation pit; a vertical drainage body, a vertical reinforcement body, a peripheral vertical closed curtain, a grouting bag, a transverse drainage body and a horizontal closed layer are arranged according to a designed range; vacuumizing is conducted through a vacuum pressure source, and foundation pit excavation is conducted; a slope sealing layer and vacuum nails are laid on the wall of a newly-excavated foundation pit, and an inner supporting system is arranged in the foundation pit; the slope surface sealing layer is sealed through a slope bottom vertical sealing curtain; and the permanent structure is constructed, follow-up dismantling, recycling and backfilling work is carried out, vacuumizing is stopped after the permanent structur
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subjects EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
title Vacuum support excavation method suitable for deep foundation pit in complex stratum close to existing building
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