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RISWall and Ground Movements due to Deep Excavations in Shanghai Soft Soils
Publisher: American Society of Civil Engineers
Abstract: An extensive database of 300 case histories of wall displacements and ground settlements due to deep excavations in Shanghai soft soils were collected and analyzed. The mean values of the maximum lateral displacements of ...
Sensitivity Analysis and Prediction Method for Water Inflow of Underground Oil Storage Caverns in Fractured Porous Media
Publisher: ASCE
Abstract: A sensitivity analysis method is proposed for the water inflow assessment and prediction of underground water-sealed oil storage caverns in fractured porous media. First, sensitivity analysis was carried out based on the ...
Design and Performance of Large Excavations for Shanghai Hongqiao International Airport Transport Hub Using Combined Retaining Structures
Publisher: American Society of Civil Engineers
Abstract: As an important add-on to Shanghai Hongqiao International Airport, the Shanghai Hongqiao International Airport transport hub is the biggest transport center in China. The transport hub consists of interchange stations for ...
Buffering Effect of Overlying Sand Layer Technology for Dealing with Rockfall Disaster in Tunnels and a Case Study
Publisher: ASCE
Abstract: An overlying sand layer combined with a concrete arch operates as a buffering structure for dealing with rockfall disasters in tunnel construction, especially through karst and weak strata. However, the buffering effect ...
Mechanics Criterion of Water Inrush from the Coal Floor under Influence of Fault and Its Engineering Application
Publisher: American Society of Civil Engineers
Abstract: In order to investigate the impact of fault on the stability of the water-resisting layer of the coal floor, the critical water pressure formula of the water-resisting layer failure under the influence of fault is deduced ...
Effect of Density, Trace Length, Aperture, and Direction Angle on Permeability Performance of Fracture Networks
Publisher: ASCE
Abstract: A fractured rock mass was characterized by strong heterogeneity, discontinuity, and anisotropy. The study of flow in a fractured rock mass was a complex and challenging task. As the main seepage channels of a fractured ...
Water Inflow Prediction during Heavy Rain While Tunneling through Karst Fissured Zones
Publisher: American Society of Civil Engineers
Abstract: A new method is proposed for water inflow prediction during heavy rain while tunneling through karst fissured zones. The proposed prediction method is a semianalytical and seminumerical method. First, an analytical ...
Flow Characteristics and Escape-Route Optimization after Water Inrush in a Backward-Excavated Karst Tunnel
Publisher: American Society of Civil Engineers
Abstract: In this study, using the background of Qiyueshan high-risk karst tunnels, flow characteristics and escape-route optimization after water inrush in a backward-excavated karst tunnel are researched. First, five case studies ...
Influence of Two Cross-Flaws Geometry on the Strength and Crack Coalescence of Rock-Like Material Specimens under Uniaxial Compression
Publisher: ASCE
Abstract: Cross-flaws are very common in natural rocks. To date, the understanding of the failure process of rocks with cross-flaws is very limited. In this research, we study the influence of the cross-flaws geometry on the rock ...
Innovative Method for the Integral Sliding Stability Analysis of Filling Media in Karst Caves and Its Applications in Engineering
Publisher: American Society of Civil Engineers
Abstract: Instability of filling media in large-scale filled-type karst caves often induce mud inrush in tunnel construction. An innovative method is proposed for the integral sliding stability analysis of the filling media on the ...