Results 1 to 10 of about 234,477 (336)
Optimization of powder factor, fragmentation and oversized boulders through subsystem studies in an opencast coal mine [PDF]
International Journal of Mining and Geo-Engineering, 2023 The massive deposit of medium-grained, white-colored sandstone of about 20 m thick, is located immediately above the coal seam in Quarry No. 2, resulted lesser yield due to lower powder factor (m3/kg) and over-sized boulder formations, specifically from ...
Pijush Roy +2 more
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Jin'gangshi yu moliao moju gongcheng, 2023 The hot-pressing sintering experiments were carried out under the conditions of sintering temperature of 950 ℃, holding time of 5 mins and different sintering pressures.
Zhiming WANG +5 more
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Measurement and Analysis of Deformation of Underlying Tunnel Induced by Foundation Pit Excavation
Advance in Civil Engineering, 2023 The excavation of a foundation pit can exert a notable impact on the underlying tunnel. This research paper aims to analyze and synthesize measured deformation outcomes caused by foundation pit excavation on the underlying tunnel. The paper employs a two-
Quan Yin +3 more
semanticscholar +1 more source
THE WORSHIPPING FORMULAE OF ROYAL ADORATION SCENES IN ANCIENT EGYPTIAN TEMPLES FROM THE OLD KINGDOM TILL THE END OF THE LATE PERIOD [PDF]
Journal of the General Union of Arab Archaeologists, 2023 الصيغ المعنونة لمناظر التعبد الملكية في المعابد المصرية القديمة منذ عصر الدولة القديمة حتى نهاية العصر المتأخر [Ar] يتناول هذا البحث عرض ودراسة ست صيغ لغوية قام الباحث بتصنيفها خلال حصره مناظر تعبد الملوك في ...
Rabee Eissa Mohamed
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Numerical simulation on the excavation damage of Jinping deep tunnels based on the SPH method
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023 In order to systematically evaluate the damage degree in Jinping deep tunnels during excavation, an improved SPH algorithm with good Lagrangian characteristics is introduced.
Shu-yang Yu +3 more
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Journal of Marine Science and Engineering, 2023 An ultra-deep L-shape foundation pit in a coastal area has recently been constructed and monitored. The project overview, geological conditions, excavation sequence and monitoring scheme are introduced in detail.
Ji-fei Cui, Zhenkun Yang, R. Azzam
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Research on non-repeated advance support technology in mining roadway
Meikuang Anquan, 2023 Taking No.12302 roadway of Wangjialing Mine as the research background, the advance support technology was researched by means of field investigation, theoretical analysis and engineering practice.
Qi WANG, Dejun SONG, Dianhua YAN
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Soil-Adaptive Excavation Using Reinforcement Learning
IEEE Robotics and Automation Letters, 2022 In this letter, we present an excavation controller for a full-sized hydraulic excavator that can adapt online to different soil characteristics. Soil properties are hard to predict and can vary even within one scoop, which requires a controller that can
Pascal Egli +4 more
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A Simplified Method for Analysis of Laterally Loaded Piles considering Cyclic Soil Degradation
Advances in Civil Engineering, 2021 This paper proposes a simplified method to analyze the bearing behavior of pile undergoing cyclic lateral load. Firstly, a modified strain model is proposed by utilizing the Duncan–Chang model to describe the stress-strain behavior of soils in the strain
Yuzhe Yang +3 more
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Environmental Earth Sciences, 2022 Deformation failure of roadways in fractured rock can lead to large-volume collapse and other engineering accidents. Failure mechanisms in fractured rock are complex and poorly understood, so to explore this issue, we simulated fractured rock masses ...
Guang Li, F. Ma, Jie Guo, Haijun Zhao
semanticscholar +1 more source