Double-layer steel sheet pile combined enclosure structure and construction method thereof

• Main Authors: WU XIAOJIAN, LIN QIAO, ZHANG ZHUTING, ZHANG JIELONG, YAN CHAO
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2019
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a double-layer steel sheet pile combined enclosure structure and a construction method thereof, relates to the technical field of geotechnical engineering design and construction, and solves the problems of enclosure deformation increase, leakage instability and other risks caused by insufficient pile body rigidity of an existing steel plate pile. The double-layer steel sheet pile combined enclosure structure comprises double layers of steel sheet piles which are arranged on the periphery of a foundation pit and are tightly attached to the axes in the width direction ofthe double layers of steel sheet piles and are arranged parallelly or symmetrically, and a combined reinforcing layer which is formed by grouting and reinforcing soil between the double layers of steel sheet piles. The construction method comprises: the outer-layer steel sheet piles and the inner-layer steel sheet piles are inserted into the periphery of the foundation pit in sequence, and then asoil body between the inn