Results 1 to 10 of about 1,787,246 (313)

Cyclic Behavior of Calcareous Sand from the South China Sea

Journal of Marine Science and Engineering, 2021
This study examines the cyclic behavior of calcareous sand obtained from the South China Sea. A series of undrained cyclic triaxial tests were performed on the calcareous sand with various relative densities, cyclic stress ratios, and effective confining
Lu Liu, Xiaofei Yao, Zhanpeng Ji, Hongmei Gao, Zhihua Wang, Zhifu Shen   +5 more
doaj   +1 more source

Liquefaction Evaluation Based on Shear Wave Velocity Using Random Forest

Advances in Civil Engineering, 2021
Liquefaction evaluation on the sands induced by earthquake is of significance for engineers in seismic design. In this study, the random forest (RF) method is introduced and adopted to evaluate the seismic liquefaction potential of soils based on the ...
Lu Liu, Shushan Zhang, Xiaofei Yao, Hongmei Gao, Zhihua Wang, Zhifu Shen   +5 more
doaj   +1 more source

On the Freeze-Thaw Instability of an Open Pit Slope Using Three-Dimensional Laser Scanning and Numerical Simulation

Geofluids, 2022
In order to reveal the instability law of open pit mine slope in high-cold and high-altitude area. Firstly, the slope structural plane is scanned by three-dimensional (3D) laser scanning technology, and the point cloud data is obtained to realize the ...
Juzhou Li, Changhong Li, Guoqing Li, Yongyue Hu, Xuefeng Yi, Yu Wang   +5 more
doaj   +1 more source

Pseudo-Static Simplified Analysis Method of the Pile-Liquefiable Soil Interaction considering Rate-Dependent Characteristics

Shock and Vibration, 2022
The lateral pressure generated by liquefied soil on pile is a critical parameter in the analysis of soil-pile interaction in liquefaction-susceptible sites.
Xinlei Zhang, Zhanpeng Ji, Hongmei Gao, Zhihua Wang, Wenwen Li   +4 more
doaj   +1 more source

A Slope Stability Based Realm Optimization Analysis for an Open Pit Mine in Cold Region: Taking Jiguanshan Molybdenum Mine for Example

Geofluids, 2022
Open pit mines have a direct impact on the production efficiency and sustainable development of the enterprise by realm optimization. In the case of changing mining technology conditions and market demand, the original design realm of the mine needs to ...
Yongyue Hu, Changhong Li, Juzhou Li, Dayu Long, Yu Wang   +4 more
doaj   +1 more source

Study on the Construction Mode of Ecological and Sustainable Rain Flood in New Urban Area of China [PDF]

E3S Web of Conferences, 2019
In the background of the urbanization process has exceeded 58% of China and expansion of the construction land expansion, as a future appropriate residential development and ahead of the key area of urban rain flood management, this research expounds the
Kang Caixia, Lu Qing, Zhang Zhiheng, Zhao Qian, Nan Huihui   +4 more
doaj   +1 more source

A Vs-Based Logistic Regression Method for Liquefaction Evaluation

Advances in Civil Engineering, 2021
The current liquefaction evaluation methods mainly focus on the success rate for liquefied sites so that the evaluation result tends to be conservative at different seismic intensities.
Xiaofei Yao, Lu Liu, Zhihua Wang, Zhifu Shen, Hongmei Gao   +4 more
doaj   +1 more source

Characteristics and Mechanical Mechanism of In Situ Unloading Damage and Core Discing in Deep Rock Mass of Metal Mine

Shock and Vibration, 2022
Based on the phenomena of core damage and core discing in deep strata of metal mines in Laizhou area, the physical and mechanical mechanism behind these phenomena and characteristics is discussed.
Peng Xiang, Hongguang Ji, Jingming Geng, Yiwei Zhao   +3 more
doaj   +1 more source

Geo-environmental monitoring of coastal and land resources of Port Said Governorate, Egypt

Egyptian Journal of Remote Sensing and Space Sciences, 2022
Port Said Governorate is one of the distinguished Egyptian coastal areas in regard to location, activities and resources. Present study aims to evaluate spatial and temporal changes in Land Use/Cover (LULC), Land Surface Temperature (LST) and Shoreline ...
Ahmed El-Zeiny, Hala Effat, Kamel Mansour, Ahmed Shahin, Khaled Elwan   +4 more
doaj   +1 more source

Urban agriculture: a global analysis of the space constraint to meet urban vegetable demand [PDF]

, 2014
Urban agriculture (UA) has been drawing a lot of attention recently for several reasons: the majority of the world population has shifted from living in rural to urban areas; the environmental impact of agriculture is a matter of rising concern; and food
Adedeji O H, D Plouffe, Deelstra T, Dongus S, F Martellozzo, FAO, FAO, FAO/WHO, Frison E A, GADM, J-S Landry, McArdle K, Mougeot L J A, Mougeot L J A ed Bakker N, N Ramankutty, Novo M G, OECD, P Rowhani, Perkins E ed Koc M, Schneider A, The Economist, The Times, UN, UN, UNDP, Urban Design Lab, V Seufert, Yu B   +27 more
core   +5 more sources