Results 91 to 100 of about 2,023 (265)

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Deformation Law Analysis of Metro Station Deep Foundation Pit Constructed by Cover-Excavation Reverse Method in Sandy Area

Chengshi guidao jiaotong yanjiu
Objective Stress deformation characteristics of the main structure in the process of metro station construction by cover-excavation reverse method are relatively complex.
LIU Xueming, WANG Guolin, SUN Dongxiao, LIU Ce, ZHANG Ning   +4 more
doaj   +1 more source

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

Deep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu, Manchao He, Jun Yang, Yubing Gao, Qiang Fu, Qing Ma, Yajun Wang   +6 more
wiley   +1 more source

Evaluation of the Additional Stress on Adjacent Tunnel Shafts Induced by Foundation Pit Excavation

Advances in Civil Engineering
The prevalence of T-shaped structures comprising interconnected tunnels and shafts is steadily increasing. Through a two-stage analysis approach, the influences of unloading and barrier action of the supporting system under the bedding and the sidewall ...
Xinjiang Wei, Jinghao Ma, Xiao Wang, Zihai Yan, Jiajia Yan, Gang Wei   +5 more
doaj   +1 more source

Research and Application of an Elastic Solution for Surface Deformation Around Foundation Pit Excavation

Applied Sciences
Targeting the concern that nearby inflexible buildings may be at risk for safety issues due to the surface deformation caused by foundation pit excavation disruptions, this paper took the large-scale foundation pit in the Hongshaquan second mine stope in
Dong Wang, Yiming Wu, Li Yin
doaj   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Dynamic response at the terminus of oblique intersecting joints subjected to stress waves

Deep Underground Science and Engineering, EarlyView.
This study derives the propagation equation for stress waves impinging upon nonlinear oblique intersecting joints. It analyzes the dynamic response at the terminus of nonlinear oblique intersecting joints subjected to stress waves. Abstract To investigate the dynamic response at the terminus of oblique intersecting joints subjected to stress waves, a ...
Gang Hu, Xiang Chen, Honglu Fei, Shijie Bao, Jian Guo   +4 more
wiley   +1 more source

Developing Transdiagnostic Single‐Session Interventions for University Students Experiencing Disordered Eating: A Mixed‐Method Co‐Design Study

International Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Many university students encounter barriers to timely support for disordered eating. Brief, scalable digital single‐session interventions (SSIs) may provide an engaging and accessible transdiagnostic pathway for early intervention where there is increased distress before a diagnosis emerges.
Maya Jabs, Tracey D. Wade
wiley   +1 more source

Seepage Point Impact in Urban Rail Transit Station Foundation Pit Enclosure Structure on the Variation Law of Surrounding Groundwater Seepage Field

Chengshi guidao jiaotong yanjiu
Objective In terms of underground engineering construction accident causes, approximately 20% of foundation pit accidents are caused by water seepage through enclosure structures.
ZHANG Xuhai
doaj   +1 more source