Foundation pit curtain construction method in gravel layer

The invention discloses a foundation pit curtain construction method in a gravel layer, and aims to provide a construction method capable of quickening the construction period and with good waterproof effect of a foundation pit curtain and high capacity of resisting active soil pressure outside a pi...

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Bibliographic Details
Main Authors HU QI, DOU DONGDONG, WEN NIANGHOU, HU HUAN, ZHANG ZHICHUN
Format Patent
LanguageChinese
English
Published 19.04.2017
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:The invention discloses a foundation pit curtain construction method in a gravel layer, and aims to provide a construction method capable of quickening the construction period and with good waterproof effect of a foundation pit curtain and high capacity of resisting active soil pressure outside a pit. The foundation pit curtain includes a foundation pit bracing body and a waterproof curtain. The foundation pit bracing body includes multiple bracing piles arranged in sequence. The construction method of single bracing pile comprises the following steps in sequence: (A) construction of a bracing pile hole: a rotary drilling machine is adopted to excavate foundation soil above the bottom elevation of the foundation pit curtain to form the bracing pile hole; (B) boulders in the foundation soil excavated from the bracing pile hole are removed; and then, the foundation soil is filled back into the bracing pile hole; and (C) H-shaped steel is inserted in the bracing pile hole to support the foundation pit. 本发明公开了种碎石
Bibliography:Application Number: CN20161939112