Results 161 to 170 of about 28,621 (307)

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

Deep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

A Q-learning approach to waste rock reduction in open-pit mine design based on cleaner production principles. [PDF]

Sci Rep
Badakhshan N, Bakhtavar E, Shahriar K, Khosravi H, Afraei S, Maremi A.   +5 more
europepmc   +1 more source

Design of waste dumps with flow-through rock drains

, 1985
A number of mines in mountainous regions of British Columbia are being forced by topographic constraints to dump large quantitites of waste rock in valley fills.
Sellars, C. David, Lighthall, Peter C., Burton, W. D.   +2 more
core  

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Optimization of Mix Design for Lightweight Boards Based on GGBFS-Waste Rock Wool Using Response Surface Methodology. [PDF]

Materials (Basel)
Lee JC.
europepmc   +1 more source

In-pit disposal program for acid generating waste rock

, 1996
For many years open pits have been used for the disposal of waste rock. Mine waste disposal has become an environmental issue that is watched closely by government agencies and the public due to the legacies of past mine waste disposal methods. An in-pit
Stogran, S. Wade, Quesnel, Jamie L.
core  

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

Deep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source

A Sensor Based Waste Rock Detection Method in Copper Mining Under Low Light Environment. [PDF]

Sensors (Basel)
Ding J, Qu F, Zhou W, Xu J, Zhao L, Ji Y.   +5 more
europepmc   +1 more source

Prevention of sulfide oxidation in waste rock by the addition of lime kiln dust. [PDF]

Environ Sci Pollut Res Int, 2019
Nyström E, Kaasalainen H, Alakangas L.
europepmc   +1 more source

Linear Programming for Scheduling Waste Rock Dumping from Surface Mines

, 2010
The removal of overlying waste rock in open pit mines to dumps is conventionally undertaken by draglines or by trucks and shovels, or by a combination of these.
Nan Zhang
core