Results 101 to 110 of about 7,265 (241)

Rock exploration

, 2019
This chapter introduces common methods of site investigation and discuss engineering issues related to different types of rock mass. Some sites may present geologic conditions where soil cover is either thin or absent and where observations of outcrops ...
Gratchev, Ivan, Ivan Gratchev
core   +1 more source

Treatment of waste marine clay by alkaline-activated ground granulated blast-furnace slag and municipal solid waste incineration bottom ash

Journal of Rock Mechanics and Geotechnical Engineering
The construction of coastal areas generates a substantial volume of waste marine clay (WMC), which poses environmental and safety challenges during the stockpiling process. The improved preparation of WMC as roadbed materials emerges as a crucial pathway
Saiou Fu, Ping Wang, Shiyu Liu, Qianshen Ding, Lei Lang, Lijun Han, Xin Chen, Jiangshan Li   +7 more
doaj   +1 more source

Analysis of lining force transmission coefficient and surrounding rock displacement in lined rock caverns for underground gas storage

Deep Underground Science and Engineering, EarlyView.
This study derives an explicit expression for the lining force transmission coefficient of underground gas storage lined rock caverns (LRCs) via the complex variable function method, considering the displacement release coefficient. Taking the 1‰ tensile strain of surrounding rock as the criterion to determine lining thickness, it systematically ...
Yaohui Li, Jianping Yang, Weizhong Chen
wiley   +1 more source

Mechanisms of failure of jointed rock masses and the behaviour of steep slopes [PDF]

, 1998
The geomorphological behaviour of steep jointed rock slopes has been studied using distinct element method computer models. In order to model steep slopes effectively, methodologies need to be combined from the studies of environmental modellers ...
Kimber, Owen Graham
core  

Research on the Method for Solving the Safety Factor of Rock Slope Based on Deformation Monitoring Warning Threshold

Applied Sciences
In view of the fact that field monitoring information can more intuitively and accurately reflect the stability state of slopes, this paper takes the warning threshold of slope deformation rate monitoring as the slope stability evaluation standard, and ...
Xiaoyan Wei, Xiuli Zhang
doaj   +1 more source

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

Deep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu, Xiang Ci, Weizhong Chen, Jianping Yang   +3 more
wiley   +1 more source

Crack and failure behaviors of sandstone subjected to dynamic loads visualized by micro-computed tomography [PDF]

Microscopic dynamic failure behaviors of rocks are significant to rock engineering, which is still insufficiently understood. This study combines split Hopkinson pressure bar (SHPB) and micro-CT (computed tomography) to explore the microscopic failure ...
Guo, P, Wang, K, Hu, J, Lei, L, Zou, C, Sun, Y, Zhang, X, Gao, X   +7 more
core   +1 more source

Intelligent inversion analysis of dilatancy angle of surrounding rock based on the force of negative Poisson's ratio anchor cable

Deep Underground Science and Engineering, EarlyView.
An intelligent inversion framework estimates the dilatancy angle of the surrounding rock from negative Poisson's ratio (NPR) anchor cable force histories. Numerical tunnel‐excavation simulations generate force data across a controlled dilatancy‐angle range, which are mapped to the target parameter using a sequential convolutional neural network (CNN ...
Li Cui, Zhihao Sun, Lei Wang, Zhenmin Qi, Jianjun Ma, Xiaoming Sun   +5 more
wiley   +1 more source

The Propagation Characteristics and Prediction of Vibration in Urban Soil–Rock Strata Induced by Underground Tunnel Blasting

This study addresses the need to carefully control vibration effects in the soil–rock strata during tunnel blasting in complex urban environments. Focusing on a typical underground tunnel blasting project, a combination of model testing and finite ...
Yang, Yumin, Zhou, Chuanbo, Jiang, Nan, Yang, Yaowen, Meng, Xianzhong, Xia, Yuqing, Zhou, Shengtao   +6 more
core   +1 more source

Offshore Wind Power—Seawater Electrolysis—Salt Cavern Hydrogen Storage Coupling System: Potential and Challenges

Energies
Offshore wind power construction has seen significant development due to the high density of offshore wind energy and the minimal terrain restrictions for offshore wind farms. However, integrating this energy into the grid remains a challenge.
Xiaoyi Liu, Yashuai Huang, Xilin Shi, Weizheng Bai, Si Huang, Peng Li, Mingnan Xu, Yinping Li   +7 more
doaj   +1 more source