Gravity pipe gallery in-situ protection structure system within foundation pit range and construction method

• Main Authors: WANG KANGWEI, LUO RUMENG, WU ZHIFENG, JIAO LULIN, LIU MENGDUO, HUANG XIAOFU, HUANG FEI, YANG ZHAOGUANG, LI YA, ZHANG JUWEN, XIONG YANGYANG, CHEN HAIJUN, CHEN QIAN, CHENG MIN, CUI ZHIBIN, LI JIGANG, LIU JISHUN
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The invention discloses a gravity pipe gallery in-situ protection structure system within a foundation pit range and a construction method. The construction method comprises the following steps that firstly, a plurality of drill holes are formed in the left side and the right side of a pipe gallery at intervals in the trend of the pipe gallery; secondly, a cast-in-place pile of a steel bar structure is cast in the portion, located below the bottom of the foundation pit, in the drilled hole; thirdly, cross beams are inserted into the holes below the bottom of the pipe gallery, and the left ends and the right ends of the cross beams are erected on top steel bars of the stand column supporting structural components on the same side; residual soil at the bottom of the pipe gallery is removed, upper and lower layers of steel bars are flatly laid in the cavity, and the left and right sides of the steel bars are erected on the connecting steel bars; and fifthly, reinforced concrete connecting beams are formed on the