In-situ protection structure for foundation pit pipeline of metro entrance and exit adopting open-cut method

• Main Authors: SONG CHAOYE, LIU PENG, HE WEIGUO, LI HAO, LI MINGJUN, TANG HAOJIE, ZHENG YANG, ZHANG QILIANG, BI LIPING, CHEN XIAOFEI, DU BAOYI, LYU QINGSONG, BI JINGDONG, FAN GUOGANG
• Format: Patent
• Language: Chinese; English
• Published: 23.11.2021
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The utility model discloses a pipeline in-situ protection structure for an open-cut subway entrance and exit foundation pit. The pipeline in-situ protection structure comprises supporting piles, a profile steel main beam, a profile steel secondary beam, a grating steel frame and height adjusting bolts. Connecting pieces are pre-buried in the supporting piles, and the supporting piles are connected with the profile steel main beams and the grating steel frame through the connecting pieces. The profile steel secondary beam penetrates through the pipe bottom to be lapped on the main beam, the height adjusting bolt is arranged on the profile steel main beam, and the height of the profile steel secondary beam is adjusted through the height adjusting bolt, so that the profile steel secondary beam is tightly attached to a protected pipeline, and the pipeline in-situ protection structure is formed. By means of the mode that the pipeline in-situ protection structure and the foundation pit support structure are combine