Modeling and monitoring in a soft argillaceous shale tunnelActa Geotechnica - Tập 4 - Trang 273-282 - 2009
Lin-chong Huang, Zhi-sheng Xu, Cui-ying Zhou
Taking advantage of measurements from an in situ monitoring program and an elastoplastic model using the finite-difference method, this paper simulates and evaluates the deformation and stability of a tunnel in soft argillaceous shale. The elastoplastic model is implemented in FLAC3D program to simulate the deformation and the stress of the soft argillaceous shale during construction. In situ test...... hiện toàn bộ
Rate-dependent behaviour of a saturated clay under different stress histories and k0 conditionsActa Geotechnica - Tập 15 - Trang 1501-1512 - 2019
Shengshen Wu, Thomas Lok, Youwei Xu, Dong Wang
This paper investigates the results obtained from a series of K0-consolidated undrained triaxial tests, which were carried out on marine clay specimens under different stress histories and strain rates. All marine clay specimens were prepared from a slurry state and pre-consolidated in a consolidometer under a vertical pressure of 100 kPa. The specimens were then compressed to the same initial eff...... hiện toàn bộ
A particle-scale study of the triaxial compression behavior of methane hydrate-bearing sandsActa Geotechnica - - Trang 1-23 - 2023
Zeshao You, Yanghui Li, Haijun Wang, Xiang Sun, Shi Shen, Peng Wu, Yongchen Song
Macroscopic geomechanical properties of methane hydrate-bearing sands (MHBSs) have attracted much scholarly attention. But the associated particle-level mechanisms often rely on assumptions. In this paper, triaxial compression tests and numerical simulations using discrete element method (DEM) are combined to study the unique mechanical properties of MHBS at the particle scale. The triaxial compre...... hiện toàn bộ
Role of superabsorbent polymer in compression behavior of high water content slurriesActa Geotechnica - - 2024
Xia Bian, Feiyang Zhao, Lingling Zeng, Zhilin Ren, Xiaozhao Li
Efficient dewatering plays a crucial role in land reclamation projects involving dredged slurry with high water content. Superabsorbent polymers (SAP), renowned for their exceptional water absorption capacity, have emerged as potential environmentally friendly and highly efficient dewatering agents for large-scale slurry dewatering. This study aims to investigate the compressive behavior of SAP-tr...... hiện toàn bộ