Results 51 to 60 of about 118,873 (258)
Evidence for late Quaternary surface rupture along the Leech River fault near Victoria, British Columbia [PDF]
, 2016 New surficial and bedrock mapping and paleoseismic trenching of the Leech River fault provide the first evidence for Quaternary surface-rupturing earthquakes in southwestern British Columbia, Canada.
Regalla, Christine
core +1 more source
Fracturing behaviors of flawed granite induced by dynamic loadings: A study based on DIP and PFC
Deep Underground Science and Engineering, EarlyView.This research examines granite's mechanical properties under split‐Hopkinson pressure bar testing, focusing on factors such as grain size and flaw dimensions. The study reveals that tension cracks are prevalent across grain sizes, with most intergrain cracks occurring between feldspar and quartz.
Xiao Wang +5 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This study reviews the research findings on the shear behavior of bolted rock joints in deep underground engineering, where they face high stress, high water pressure, and engineering disturbance. This study examines how the shear strength of bolted rock joints is affected by various factors, such as normal stress, rock compressive strength, joint ...
Chang Zhou +5 more
wiley +1 more source
Early impact basins and the onset of plate tectonics [PDF]
The fundamental crustal dichotomy of the Earth (high and low density crust) was established nearly 4 billion years ago. Therefore, subductable crust was concentrated at the surface of the Earth very early in its history, making possible an early onset ...
Frey, H.
core +1 more source
Deep Underground Science and Engineering, EarlyView.The mechanical characteristics of three different types of sandstones under high stress levels are studied. The degree of fragmentation of specimens increases with the applied stress level. The acoustic emission counting of different types of sandstones presents three stages: weakening, stabilizing, and surging.
Yujing Jiang +6 more
wiley +1 more source
Techniques, problems and uses of mega-geomorphological mapping [PDF]
A plea for a program of global geomorphological mapping based on remote sensing data is presented. It is argued that the program is a necessary step in bringing together the rapidly evolving concepts of plate tectonics with the science of geomorphology ...
Embleton, C.
core +1 more source
Deep Underground Science and Engineering, EarlyView.A 9‐year study on the deformation and stability problem of the large deep underground cavern in Baihetan power station was carried out. Abstract The big underground powerhouse cavern of the China Baihetan hydropower plant is 438 m long, 34 m wide, and 88.7 m high.
Lifang Zou +5 more
wiley +1 more source
Secular cooling of Earth as a source of intraplate stress [PDF]
The once popular idea that changes in planetary volume play an important role in terrestrial orogeny and tectonics was generally discarded with the acceptance of plate tectonics.
Solomon, Sean C.
core +1 more source
Deep Underground Science and Engineering, EarlyView.This study established a true triaxial numerical model of rock mass with the discrete element method and explored the crack evolution of surrounding rock of underground roadway gas storage during cyclic loading and unloading and the damage numerical model considering residual deformation.
Zhanguo Ma +5 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.A study is carried out on the variation of the permeability coefficient of soil–rock mixtures in fault zones under different stress states. Abstract As the first gold mine discovered at the sea in China and the only coastal gold mine currently mined there, Sanshandao Gold Mine faces unique challenges.
Wenhui Tan +3 more
wiley +1 more source