Results 291 to 300 of about 140,868 (311)

Numerical simulation of the energy transfer efficiency and rock damage in axial-torsional coupled percussive drilling

Journal of Petroleum Science and Engineering, 2021
exaly  

Rock brittleness indices and their applications to different fields of rock engineering: A review

Journal of Rock Mechanics and Geotechnical Engineering, 2021
Fanzhen Meng, Louis Ngai Yuen Wong
exaly  

A new method to improve rock breaking efficiency by using automatic unloading of bottom hole central stress

Geoenergy Science and Engineering, 2023
Yongwang Liu, Zhe Zhang, Qingli Ji, Jiaxiong Liu, Zhichuan Guan, Jian Zhou, Baoping Lu, Deyong Zou, Xinyan He, Sen Wei   +9 more
openaire   +1 more source

Research on cutter surface shapes and rock breaking efficiency under high well temperature

, 2023
Dongdong Song, Zhangping Ren, Yingxin Yang, Hai‐Tao Ren   +3 more
openalex   +1 more source

Effects of Jointed Rock Mass and Mixed Ground Conditions on the Cutting Efficiency and Cutter Wear of Tunnel Boring Machine

Rock Mechanics and Rock Engineering, 2018
Haiqing Yang, Zhongkui Chen
exaly  

Numerical study of the effect of confining pressure on the rock breakage efficiency and fragment size distribution of a TBM cutter using a coupled FEM-DEM method

Tunnelling and Underground Space Technology, 2019
Zhijun Wu, Lifeng Fan
exaly  

Polymer coated novel controlled release rock phosphate formulations for improving phosphorus use efficiency by wheat in an Inceptisol

Soil and Tillage Research, 2018
Trisha Roy, Pravash Chandra Moharana, Siddhartha Sankar Biswas   +2 more
exaly  

Experimental investigation on sealing efficiency of chemical grouting in rock fracture with flowing water

Tunnelling and Underground Space Technology, 2015
Wanghua Sui, Jinyuan Liu
exaly  

Experimental study of the energy transfer efficiency and rock fragmentation characteristics in percussive drilling

Geothermics, 2022
exaly  

Generalized equation for calculating rock cutting efficiency by pulsed water jets

Journal of Rock Mechanics and Geotechnical Engineering, 2019
Andrey V Polyakov, Евгений Аверин   +1 more
exaly