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:
Apr. 16, 2024
Filed:
Jul. 24, 2023
Beijing Urban Construction Design&development Group Co., Limited, Beijing, CN;
Fucai Hua, Beijing, CN;
Gang Lei, Beijing, CN;
Zhihui Yang, Beijing, CN;
Jianye Zhu, Beijing, CN;
Fucai Hua, Beijing, CN;
Gang Lei, Beijing, CN;
Zhihui Yang, Beijing, CN;
Jianye Zhu, Beijing, CN;
Liang Zhang, Beijing, CN;
Ning Li, Beijing, CN;
Yanan Dong, Beijing, CN;
Ningning Li, Beijing, CN;
Beijing Urban Construction Design & Development Group Co., Limited, Beijing, CN;
Other;
Abstract
A method for constructing a large-span station by two-wing open type semi-covered excavation and semi-reverse construction, is divided into three stages of excavation. First, excavate a first-stage inner small foundation pit, then excavate a second-stage annular foundation pit within the first-stage retaining piles and outside the range of the first-stage inner small foundation pit, and finally excavate a third-stage semi-covered excavation foundation pit below the first-stage inner small foundation pit and the second-stage annular foundation pit. By setting graded retaining piles, middle upright post piles, middle top plates, local waist beams and local concrete supports in the soil-rock combination strata, so that the force transfer between the foundation pit enclosure and the station main body structures and the underlying rock layer is clear and reliable, and a stable frame structure is achieved.