Study of rock-breaking performance of V-axe-shaped PDC cutter in tight sandstone formation
Y Ma, H Zhao, Z Wu, H Zhang, Z Rong, X Zhang… - Geoenergy Science and …, 2024 - Elsevier
In the field of oil and gas drilling engineering, tight sandstone strata are one of the strata that
are difficult to drill. The V-axe-shaped cutter has a good effect in crushing tight sandstone …
are difficult to drill. The V-axe-shaped cutter has a good effect in crushing tight sandstone …
Effects of folded fissure properties on tunnel model failure: Experiments and numerical simulations
S Wang, S Yu, X Hu, B Yang - Engineering Fracture Mechanics, 2024 - Elsevier
Natural folded fissures commonly exist rather than simple straight fissures in rock masses
surrounding tunnels. The presence of folded fissures significantly affects the fracture …
surrounding tunnels. The presence of folded fissures significantly affects the fracture …
Analytical study on additional stress field of double shield TBM tunneling based on Mindlin theory
X Cheng, Y Guo, X Zhu, W Li, W Hu, L Xu… - Applied Mathematical …, 2025 - Elsevier
Abstract Tunnel Boring Machine (TBM) tunneling generates construction loads
accompanied by unloading effect, forming additional stress field. In the previous analytical …
accompanied by unloading effect, forming additional stress field. In the previous analytical …
Investigation on rock breaking and optimum spacing of TBM cutters under confining stress using a continuum-discontinuum method
T Wang, C Yan, H Zheng - Engineering Analysis with Boundary Elements, 2024 - Elsevier
Abstracts In-situ stress is one of the important geological factors affecting Tunnel Boring
Machine (TBM) performance. Meanwhile, cutter wear is also a nonnegligible issue in TBM …
Machine (TBM) performance. Meanwhile, cutter wear is also a nonnegligible issue in TBM …
Experimental study of rock cutting behavior in water-soaked rock
X Zhu, F Yang, W Liu, X Luo, B Tan - Geoenergy Science and Engineering, 2024 - Elsevier
The existing experimental and numerical simulations on the rock-cutting by PDC cutter have
focused primarily on dry rocks (DR), with limited research on the cutting of saturated rocks …
focused primarily on dry rocks (DR), with limited research on the cutting of saturated rocks …
Experimental study on conglomerate-breaking mechanism by rotary cutting with triple-ridged PDC cutters and planar PDC cutters
H Chen, Z Chen, X Li, H Shi, W He, Z Qu… - Geoenergy Science and …, 2025 - Elsevier
With a rapid development of global economy, the dependence on oil and gas resources has
been increasing year by year. Being the largest conglomerate oilfield around the world …
been increasing year by year. Being the largest conglomerate oilfield around the world …
Dynamic strength of lined tunnel in hard rock medium under cylindrical unloading waves with visco-elastic interface effect
XQ Fang, XY Liu, YW Xiong - Archive of Applied Mechanics, 2025 - Springer
In deep rock medium excavation, the unloading waves due to the blasting excavation can
bring great damage to the neighboring structures. In this paper, the visco-elastic interface …
bring great damage to the neighboring structures. In this paper, the visco-elastic interface …
Experimental study on the performance and mechanism of different combined rock breaking modes of laser-assisted PDC cutter
B Xu, X Huang, B Zhang, B Li, T Liu - Geoenergy Science and Engineering, 2025 - Elsevier
Laser-assisted polycrystalline diamond compact (PDC) cutter rock breaking has
demonstrated outstanding performance in improving drilling speed and extending cutter …
demonstrated outstanding performance in improving drilling speed and extending cutter …