Results 81 to 90 of about 135 (104)

Ultrasonic logging instrument for shaft sinking by drilling

Measurement: Journal of the International Measurement Confederation, 2019
Abstract Shaft sinking by drilling is widely used in mining, construction and coal industry. Measuring the shaft borehole accurately, is of great importance to the quality in these projects among other factors. This paper proposes a novel design and implementation of ultrasonic logging instrument for shaft sinking by drilling (ULISSD).
Maoyong Cao, Nongliang Sun
exaly   +2 more sources

Conversion of the waste drilling mud to renewable grouting materials in deep shaft sinking

Construction and Building Materials, 2023
Changwu Liu, Zhipeng Xu, Xuhai Feng
exaly   +2 more sources

New drilling test station of Steinkohlenbergbauverein for mechanical shaft sinking and road driving. (In German.) 4F, 5R

International Journal of Rock Mechanics and Mining Sciences, 1976
J. Henneke, L. Baumann
exaly   +2 more sources

Optimization of Cutter Body Parameters for Milled-Tooth Roller Cutters in Shaft Sinking by Drilling Methods: A Case Study in Jurassic Strata of Western China

Rock Mechanics and Rock Engineering
Liangliang Zhang, Yao Zhishu
exaly   +2 more sources

Numerical Analysis on Vertical Structural Stability of Floating Drilled Shaft during Sinking

Advanced Materials Research, 2011
The vertical structural stability of floating drilled shaft during sinking is an important practical issue on the safety of boring technique in the deep and thick alluvium. In fact, the vertical structural stability of shaft lining is a matter of overturn buckling.
Ji Min Liu, Chang Bo Wang
openaire   +1 more source

Improving the parameters of drilling and blasting operations during the sinking of the vertical shaft of the second tier of the Sev at the Pskem HPP

AIP Conference Proceedings, 2022
Farrukh Khudoyberdiev, Dilmurod Makhmudov, Mansur Israilov, Feruz Pardaev, Yorkin Nurboboev, Islomitdin Kudratov   +5 more
openaire   +1 more source

Optimization of hydraulic structure and well flushing parameters of a truncated cone drill bit for drilling shaft sinking

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects
Longhui Guo, Hua Cheng, Zhishu Yao, Chuanxin Rong, Xiaoyun Wang, Zongjin Wang   +5 more
openaire   +1 more source

Conceptual application of long hole drilling to shaft sinking using sand-filled holes

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1980
openaire   +1 more source