Results 61 to 70 of about 17,530 (271)

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

Research on Deformation Prediction of Small Interval Tunnel Based on Machine Learning and Numerical Simulation

Energy Science &Engineering, EarlyView.
This study leverages machine learning algorithms—specifically artificial neural networks (ANN) and genetic programming (GP)—to forecast and analyze variations in vault settlement measurements during excavation of small interval tunnel. A settlement prediction model was developed and validated through comparative analysis with regression to evaluate the
Wenjie Zhai, Jia Xue, Yongjie Fu, Beichen Yu, Yan Zhu, Man Yuan, Mingbo Chi, Zhentao Li   +7 more
wiley   +1 more source

Mesoscopic characteristics of carbonate erosion to shotcrete

Case Studies in Construction Materials
In the context of enhancing the durability of shotcrete used in construction, particularly in environments prone to carbonate erosion, this study investigates the mesoscopic characteristics of shotcrete subjected to such conditions.
Jiajian Wei, Junying Rao, Yaqi Wang, Lingling Wang   +3 more
doaj   +1 more source

On the design of the fiber reinforced shotcrete applied as primary rock support in the Cuiabá underground mining excavations: A case study

Case Studies in Construction Materials, 2021
The Cuiabá mine is an underground gold operation located in Sabará (Minas Gerais, Brazil), which began to use fiber reinforced shotcrete as rock support since 2012.
Vitor Moreira de Alencar Monteiro, Flávio de Andrade Silva   +1 more
doaj   +1 more source

Finite element method applied in mine pressure computation within the context of rock massif – support system interaction [PDF]

, 2019
Purpose. The analysis of the current underground mine workings, both those that are in operation and works located within the mining perimeters where activity was stopped, is leading directly to the problem of stability, i.e. safety. The aim of the paper
Danciu, C, Moraru, R, Toderaş, M
core   +1 more source

An Experimental Study on the Elbow Pressure Drop and Conveying Stability of Pneumatic Conveying for Stiff Shotcrete Based on Response Surface Methodology

Processes, 2023
The pressure drop and conveying stability caused by the bend significantly affect the pneumatic conveying process of stiff shotcrete, which is the key to solving the problem of long-distance transportation.
Zhenjiao Sun, Lianjun Chen, Guanguo Ma, Hui Ma, K. Gao   +4 more
semanticscholar   +1 more source

Study on the Influence of Slope Static Load on Shallow Lining Support Structure

Energy Science &Engineering, EarlyView.
On the basis of the background of the shallow‐buried main adit supported by stone lining, the mechanical model of the supporting structure is constructed, and the stability of the supporting structure is analyzed by using the methods of field investigation, theoretical analysis, and numerical simulation.
Hongwei Wang, Chaofeng Yuan, Jianqiang Jiao, Jinyuan Bai   +3 more
wiley   +1 more source

Research on Properties of Glass Sand Shotcrete

Zhongwai Gonglu
In order to study the effect of glass sand on the properties of shotcrete, shotcrete was prepared by using glass sand instead of natural sand. Through the compressive strength test, splitting tensile strength test, drying shrinkage test, and chloride ion
GAO Qingshui, MA Kaikai, GUO Lingzhi, LIU Hongtian, HUANG Shimei, HAN Song, HU Peng   +6 more
doaj   +1 more source

The pioneer of intelligent and sustainable construction in tunnel shotcrete applications: a comprehensive experimental and numerical study on a self-sensing and self-heating green cement-based composite

Measurement science and technology
In this study, a self-sensing and self-heating natural fibre-reinforced cementitious composite for the shotcrete technique was developed using Kenaf fibres.
M. Abedi, F. Gulisano, Baoguo Han, Raúl Fangueiro, António Gomes Correia   +4 more
semanticscholar   +1 more source

Interpretable Tree‐Based Models for Predicting Short‐Term Rockburst Risk Considering Multiple Factors

Energy Science &Engineering, EarlyView.
Interpretable tree‐based models integrate microseismic, geological, and mining indicators to predict short‐term rockburst risk. SHAP analysis reveals the dominant role of energy‐related features and clarifies nonlinear factor interactions, enabling transparent and reliable early‐warning in deep coal mines.
Shuai Chen, Linming Dou, Atao Li, Wu Cai, Lei Zhang   +4 more
wiley   +1 more source