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RISDeterministic and Probabilistic Investigations of Piping Occurrence during Tunneling through Spatially Variable Soils
Publisher: ASCE
Abstract: Piping is a common phenomenon of seepage failure in underground space construction. Efforts have been made in understanding the mechanism of piping due to seepage gradient force and incorporating these in prediction ...
Probabilistic Seismic Displacement Hazard Assessment of Earth Slopes Incorporating Spatially Random Soil Parameters
Publisher: ASCE
Abstract: Permanent sliding displacement is a parameter that is used widely to evaluate the seismic performance of earthen slopes, and the inherent variability of soil strength parameters is considered simply using a logic tree in ...
Hydrothermal Performance of In-Tunnel Ground Freezing Subjected to Drilling Inaccuracy and Seepage Flow
Publisher: ASCE
Abstract: In the last few decades, artificial ground freezing (AGF) has been used as a temporary soil stabilization and waterproofing technique in geotechnical engineering, especially in tunneling construction. In construction, ...
Generic Models for Predicting Coseismic Displacements of Earth Slopes Based on Numerical Analysis and Machine Learning Algorithm
Publisher: American Society of Civil Engineers
Abstract: Generic models for estimating the earthquake-induced displacement of Earth slopes are developed based on a numerical approach. A number of 14,112 slope models with different configurations of slope geometry and soil property ...
Model Uncertainty for Predicting the Bearing Capacity of Sand Overlying Clay
Publisher: American Society of Civil Engineers
Abstract: In this paper, 62 centrifuge tests are collected from the literature and used to perform a statistical evaluation of the model factor for conventional methods to calculate the bearing capacity of dense sand overlying clay. ...
Expanded Database Assessment of Design Methods for Spread Foundations under Axial Compression and Uplift Loading
Publisher: ASCE
Abstract: This paper compiles two expanded databases—NUS/SpreadFound/919 and NUS/RockFound/270—to evaluate the calculation methods of foundation capacity, where the number is the number of load tests collated. The mean (bias) and ...
Adaptive Monte Carlo Simulation Method and Its Applications to Reliability Analysis of Series Systems with a Large Number of Components
Publisher: ASCE
Abstract: It is not uncommon to encounter engineering structures that can be modeled as series systems with a large, even unlimited, number of correlated components (e.g., component number greater than 1,000). It can be a ...
Three-Dimensional Seepage Investigation of Riverside Tunnel Construction Considering Heterogeneous Permeability
Publisher: ASCE
Abstract: Seepage is a major concern during the construction of a riverside tunnel, because the seepage may cause both hydraulic and mechanical problems. At present, there are some well-accepted methods combining the hydraulic-mechanical ...
Modeling Irregularly Inclined Fissure Surfaces within Nonuniform Expansive Soil Slopes
Publisher: ASCE
Abstract: Fissures inside expansive soils play a crucial role in triggering the failure of a slope. However, few methods have been developed to model such irregularly inclined fissures in slope stability analysis. This study will ...
SS-XGBoost: A Machine Learning Framework for Predicting Newmark Sliding Displacements of Slopes
Publisher: ASCE
Abstract: Estimation of Newmark sliding displacement plays an important role for evaluating seismic stability of slopes. Current empirical models generally utilize predefined functional forms and relatively large model uncertainty ...