Results 1 to 10 of about 7,837 (263)

Strength test of 3D printed artificial rock mass with pre-existing fracture

open access: yesUnderground Space, 2021
Discontinuities or structural planes are widely distributed in natural rock masses and significantly influence their geo-mechanical and geometric properties.
Youyu Wang   +3 more
doaj   +1 more source

Influence mechanism of rock joints on blasting fragmentation

open access: yesYantu gongcheng xuebao
The influences of rock joints on the formation of blasting fragmentation have always been a hot issue in blasting engineering, which is one of the most important factors affecting the construction efficiency and long-term operation safety.
HU Yingguo 1, 2, RAO Yu 1, 2, CHAI Chaozheng 3, WU Xinxia 1, 2, YANG Zhaowei 1, 2, ZHOU Xianping 1, 2
doaj   +1 more source

Application of Microbially Induced CaCO3 on the Reinforcement of Rock Discontinuity

open access: yesApplied Sciences
Microbially induced calcium carbonate precipitation (MICP) is a technique used in geotechnical engineering to reinforce soil and rock. While it is commonly used for soil reinforcement, its application for rock reinforcement in saline–alkaline ...
Simiao Zhang   +3 more
doaj   +1 more source

Studying the effect of some parameters on the stability of shallow tunnels

open access: yesJournal of Sustainable Mining, 2018
Several factors have crucial impact on the serviceability of underground openings including: the quality of rock mass; the presence of rock joints and their geometrical properties; the state of in-situ stress ratio; the depth below surface and opening ...
Wael R. Abdellah   +2 more
doaj   +1 more source

Influence of the Number of Parallel Joints on the Dynamic Mechanical Properties of Rock-Like Features

open access: yesGeofluids, 2022
The number and distribution of joints in rock are closely related to their physical and mechanical properties. In this paper, given the propagation law of explosive stress waves in jointed rock during rock blasting and the influence of joints on dynamic ...
Zhiyu Zhang   +3 more
doaj   +1 more source

Development of a damage rheological model and its application in the analysis of mechanical properties of jointed rock masses

open access: yesEnergy Science & Engineering, 2019
Fossil fuel resources (eg, coal, oil, and natural gas) exist in underground reservoirs, where discontinuities are widespread and influence the stability of rock structures.
Wendong Yang   +6 more
doaj   +1 more source

Shear creep characteristics and constitutive model of hidden non-persistent joints

open access: yesYantu gongcheng xuebao, 2019
The joints control the boundary of the rock slope instability. A large number of joints in the natural world are not completely persistent, and are hidden inside the slope.
LI Ren-jie , JI Feng , FENG Wen-kai , WANG Dong-po , ZHANG Jin-ming
doaj   +1 more source

Research on Damage Evolution Mechanism of Layered Rock Mass under Blasting Load

open access: yesBuildings
Rock mass consists of many discontinuities, such as faults, joints, etc., and layered joints are a common kind of rock mass structure. The joints affect the stress wave propagation, and blasting is an economical and efficient rock fragmentation method ...
Lixiang Xie   +5 more
doaj   +1 more source

Research on direct shear behaviour and fracture patterns of 3D-printed complex jointed rock models

open access: yesRock and Soil Mechanics, 2020
Geometry and mechanical characteristics of joints are key factors affecting the shear behaviors and fracture patterns of jointed rock mass. Using 3D printing technique, experimental jointed rock specimens containing rough joints with varied joint ...
WANG Pei-tao   +4 more
doaj   +1 more source

A comprehensive review of experimental studies on shear behavior of bolted rock joints with varying rock joint and bolt parameters and normal stress

open access: yesDeep Underground Science and Engineering
The shear characteristics of bolted rock joints are crucial for the stability of tunneling and mining, particularly in deep underground engineering, where rock bolt materials are exposed to high stress, water pressure, and engineering disturbance ...
Chang Zhou   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy