Method of treating tunnel collapse using pavilion support

US11306588B2 · kind B2 · utility

Assignees

• SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY · CN
• CHINA COMMUNICATIONS CONSTRUCTION CO., LTD. · CN
• QINGDAO WEST COAST RAIL TRANSIT CO., LTD. · CN
• QINGDAO FIRST MUNICIPAL ENGINEERING CO., LTD · CN
• HEBEI FEIPU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD · CN

Inventors

• Xianghui Meng · Qingdao, CN
• Shibin Jiang · Qingdao, CN
• Weizhou Li · 流花街道, CN
• Hailiang Wang · Camarillo, US
• Fu Yu · Qingdao, CN
• Wensheng He · Tangxia, CN
• Quanwei Liu · Qingdao, CN
• Chuan Li · New York, US
• Zhenbiao Wang · Qingdao, CN
• Lin Xin · Qingdao, CN
• Biao Kong · Qingdao, CN
• Xiangbao Meng · Qingdao, CN
• Yong Zhang · Xianyang, CN
• Wenming Zhang · Nonatum Mills, US
• Lide Hou · Qingdao, CN
• Jiufang Xiong · Qingdao, CN
• Xuanshan Zhang · Qingdao, CN

Key dates

• Filing date: Jul 20, 2020
• Grant date: Apr 19, 2022
• Expiry date: Jul 20, 2040

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21D15/44
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A method of treating tunnel collapse includes leveling a collapse body and moving a pavilion support under the collapse cavity, lifting a shield plate until a lower edge of the shield plate surpasses a contour line of an initial supporting arch of a tunnel, connecting a bottom column and inserting a padding plate under a column. If the hydraulic prop retracts, the column, the bottom column, the padding plate and the hydraulic prop bear a load from the shield plate. Mounting and connecting the initial supporting arch, welding the intersection point of the column and the initial supporting arch, cutting off the column in the initial supporting arch. Transferring the load of the shield plate from the pavilion support to an initial supporting shed, spraying fast-setting concrete to a grid arch to form a closed shell, and pumping filling material to fill the space of the collapse cavity.