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RISReview of Cave-In Failures of Urban Roadways in China: A Database
Publisher: ASCE
Abstract: In the past several years, the high frequency of cave-in failures of urban roadways has posed a serious threat to the safety of traffic, pedestrians, and existing structures and facilities in China, and they have often led ...
Observed Behaviors of a Long and Deep Excavation Constructed by Cut-and-Cover Technique in Shanghai Soft Clay
Publisher: American Society of Civil Engineers
Abstract: A 16–18 m deep excavation for a metro station with in-plane dimensions of approximately 20 m wide by 290 m long was constructed by using the cut-and-cover technique in soft clay in the Shanghai metropolitan area, in which ...
Forensic Diagnosis of a Leaking Accident during Excavation
Publisher: American Society of Civil Engineers
Abstract: Construction of a subway station in Shanghai called for a 31.4–33.1–m-deep excavation, which extended through upper impermeable clayey strata into underlying erodible silt and sand aquifer layers. When the north section ...
Performance of an Overexcavated Metro Station and Facilities Nearby
Publisher: American Society of Civil Engineers
Abstract: This paper examines the performance of an overexcavated metro station in soft clay within Shanghai metropolitan area, in which there are many high-rise buildings and buried utility pipelines in the proximity. The excavation ...
Structural Behaviors of Large Underground Earth-Retaining Systems in Shanghai. I: Unpropped Circular Diaphragm Wall
Publisher: American Society of Civil Engineers
Abstract: The excavation of a large-sized foundation pit for one skyscraper in Shanghai required installation of a 100-m diameter unpropped circular diaphragm wall at the pit center first, followed by installation of a multipropped ...
Structural Behaviors of Large Underground Earth-Retaining Systems in Shanghai. II: Multipropped Rectangular Diaphragm Wall
Publisher: American Society of Civil Engineers
Abstract: Via analyzing the field instrumentation data, this study examines the structural behaviors of the multipropped diaphragm wall for excavation of the outer rectangular pit. The circumferential stresses in waler beams as well ...
Erratum for “Structural Behaviors of Large Underground Earth-Retaining Systems in Shanghai. I: Unpropped Circular Diaphragm Wall” by Yong Tan and Dalong Wang
Publisher: American Society of Civil Engineers
Why Excavation of a Small Air Shaft Caused Excessively Large Displacements: Forensic Investigation
Publisher: American Society of Civil Engineers
Abstract: Any deficiency in excavation design or construction could lead to excessively large retaining wall and ground displacements, usually accompanied by damage to adjacent structures or facilities. This paper documents a case ...
Catastrophic Failure of Shanghai Metro Line 4 in July, 2003: Occurrence, Emergency Response, and Disaster Relief
Publisher: ASCE
Abstract: The failure of Shanghai Metro Line 4 in 2003 was one of the most striking accidents in the history of subway construction in China. It involved the first breach failure of a cross passage being mined by an artificial ...
Statistical Analyses on a Database of Deep Excavations in Shanghai Soft Clays in China from 1995–2018
Publisher: ASCE
Abstract: This paper presents the results of statistical analyses on a database comprising 592 deep excavations in Shanghai soft clays from 1995 to 2018. First, the general trends and patterns over time are outlined for seven different ...