Earth excavation method for secondary island building of silt stratum of oversized deep foundation pit

The invention discloses an earth excavation method for secondary island construction of a silt stratum of an oversized deep foundation pit, which comprises the following steps: (1) primary island construction: the primary island construction elevation is the original ground elevation; (2) excavating...

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Hauptverfasser:	HOU LIANBIAO, MA XIAODONG, HUA KEQING, LIU YONGLI, YE XIANGJUN, GAO FENG, WO LIUJIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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creator	HOU LIANBIAO MA XIAODONG HUA KEQING LIU YONGLI YE XIANGJUN GAO FENG WO LIUJIE
description	The invention discloses an earth excavation method for secondary island construction of a silt stratum of an oversized deep foundation pit, which comprises the following steps: (1) primary island construction: the primary island construction elevation is the original ground elevation; (2) excavating earthwork above the bottom elevation of the top beam supporting system, and constructing the top beam supporting system; (3) secondary island building is conducted, the elevation of the secondary island building is the same as the elevation of the top of the supporting beam, and a slope ramp is led from a soil outlet to a secondary built center island; (4) island-type segmentation and layering are conducted, and an excavator transfers the muddy soil layer of the foundation pit below the supporting beam in a stepped mode; (5) a cushion layer is constructed, a pile head is processed, pile foundation detection work is completed, and a waterproof layer is constructed; and (6) sectioning and timely closing the bottom p
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subjects	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
title	Earth excavation method for secondary island building of silt stratum of oversized deep foundation pit
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