Results 151 to 160 of about 20,129 (306)

Upper bound limit analysis of coral reef limestone cavern roof stability incorporating a tension‐shear failure mechanism with tensile‐strength cut‐off

Deep Underground Science and Engineering, EarlyView.
For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
wiley   +1 more source

Deep learning-extracted high-resolution dataset of rural courtyards and rooftops in northern China. [PDF]

Sci Data
Liu G, Wu M.
europepmc   +1 more source

Investigation on tunnel stability considering pipe‐roof support with transparent soil technology

Deep Underground Science and Engineering, EarlyView.
This study integrates transparent soil technology, 3D reconstruction and numerical simulation to captures the full‐field deformation of shield tunnel instability. Results demonstrate that pipe‐roof support enhances stability via the “soil‐arching barrier effect,” effectively restraining failure wedge development by extending stress transfer paths ...
Zhi Jia, Yunpeng Ji, Zhao Lu, Honghua Zhao, Limin Zhang   +4 more
wiley   +1 more source

Research on deformation mechanisms in deep excavation tunnels and the application of the pile foundation-unit-type support. [PDF]

Sci Rep
Gou L, An D, Song Y, Xu H, Xiao W, Jiang X.   +5 more
europepmc   +1 more source

Explainable hybrid stacking ensemble method for hard rock pillar stability prediction and engineering applications

Deep Underground Science and Engineering, EarlyView.
This research proposes an interpretable hybrid stacking ensemble framework, optimized by the Sparrow Search Algorithm, to enhance hard rock pillar stability prediction. By integrating six machine learning models—k‐nearest neighbors, support vector machines, random forests, Gradient Boosting Decision Tree, eXtreme Gradient Boosting, and Light Gradient ...
Ning Wang, Guoyan Zhao, Meng Wang, Taraka Pattela   +3 more
wiley   +1 more source

Study on pressure-relief effect and protection scope of long-distance lower protective seam mining based on similar physical simulation and PFC^3D. [PDF]

Sci Rep
Zhan K, Liu Z, Wei D, Yao W, Zhou W, Zhu R, Yuan Y, Yang Y, Zhang D, Li B.   +9 more
europepmc   +1 more source

Improving the durability of flat roof constructions

, 1999
Flat roof constructions are mainly used on commercial, institutional and industrial buildings, where insulation is placed on top of the load-bearing deck and then covered with a roof membrane.
Rudbeck, Claus Christian, Svendsen, Sv Aa Højgaard   +1 more
core  

Investigation on the failure evolution characteristics of surrounding rock in deep cross‐fault roadway: Based on physical model test and numerical simulation

Deep Underground Science and Engineering, EarlyView.
This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li, Suping Peng, Jing Zheng, Zhanhua Yang, Qijun Tian   +4 more
wiley   +1 more source

Techno-Economic Comparison Based on Experimental Setup of Spherical and Flat Photovoltaics with IoT Monitoring System. [PDF]

Sensors (Basel)
Badawi A, El-Bayeh CZ, Elzein IM, Alqaisi W, Ashraf A, Palikuca V, Hasan-Zia M.   +6 more
europepmc   +1 more source

Shading of flat roofs

Shading of flat roofs, 2023
openaire   +1 more source