The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2022
Filed:
Apr. 12, 2021
Ccteb Infrastructure Construction Investment Co., Ltd., Hubei, CN;
China Construction Third Engineering Bureau Group Co;ltd, Hubei, CN;
Xiaosong Dai, Hubei, CN;
Nanshan Yu, Hubei, CN;
Kaiyang Liu, Hubei, CN;
Yisheng Ye, Hubei, CN;
Haijun Zhu, Hubei, CN;
Changyi Su, Hubei, CN;
Qing Sun, Hubei, CN;
Shangzhi Jiang, Hubei, CN;
Qin Cao, Hubei, CN;
Jian Cui, Hubei, CN;
Lishan Cui, Hubei, CN;
Abstract
A rapid construction method for a secondary lining of a small-section tunnel includes steps of: transporting and store secondary lining steel bars to a designated position in the tunnel with a steel bar transport vehicle and a wheel type dump truck; after the tunnel is cleaned, simultaneously constructing the secondary lining from two ends to a middle of the tunnel; constructing a lower inverted arch with a customized inverted arch formwork and then constructing an upper arch wall with a plurality of portal arch wall formwork trolleys; wherein the portal arch wall formwork trolleys form a set, and are connected by hinges, so as to construct in a curve tunnel. The rapid construction method has a long single construction section, and procedure connection is compact, thereby realizing rapid and efficient construction of the secondary lining.