Results 111 to 120 of about 26,696 (230)

Surrounding Rock　Stability Control Technology of Soft Rock Roadway Passing Water Conductive Faul

Meikuang Anquan, 2020
When soft rock roadway passes the water conductive fault fracture zone, the surrounding rock often faces grea tinstability risks. Based on this, FLAC3D is used to perform numerical simulation analysis on the stress, deformation and failure characteristics when it passes through the fault considering the softening effect of mudstone and siltstone by ...
openaire   +1 more source

Catastrophe mechanism and disaster countermeasure for soft rock roadway surrounding rock in Meihe mine

International Journal of Mining Science and Technology, 2015
Abstract The soft rock’s heterogeneity and nonlinear mechanical behavior cause extremely difficult maintenance on the soft rock roadway. Aiming at the asymmetric deformation and destruction phenomenon appearing after excavating and supporting the 7101 air return way in Meihe mine, this paper comprehensively adopted a variety of methods to analyze the
Yang Yu, Caikun Zhu, Deyu Chong, Yang Liu, Sichao Li   +4 more
openaire   +1 more source

Bridge Deck Runoff: Water Quality Analysis and BMP Effectiveness [PDF]

, 2010
INE/AUTC 10 ...
Hazirbaba, Yildiz Dak, Perkins, Robert
core  

Local reinforcing of footing supported in the destroyed rock massif [PDF]

, 2017
Purpose. Justification of feasibility of non-explosive destruction of hard rock during in-seam workings based on the obtained dependences related to changes of physical and mechanical properties of non-explosive destructive mixtures (NDM) in the process ...
Isayenkov, O, Rodzin, S, Sakhno, I
core   +1 more source

Behaviour of frictional joints in steel arch yielding supports [PDF]

, 2014
The loading capacity and ability of steel arch supports to accept deformations from the surrounding rock mass is influenced significantly by the function of the connections and in particular, the tightening of the bolts.
Horyl, Petr, Maršálek, Pavel, Šňupárek, Richard   +2 more
core   +1 more source

The J₂ evolution model and control technology of the main roadway surrounding rock under superimposed influence of double-coal seam mining. [PDF]

Sci Rep, 2023
Chen D, Li Z, Xie S, Wang Z, Jiang Z, Jia Q, Wang Y.   +6 more
europepmc   +1 more source

Prediction of TBM Roadway Surrounding Rock Grade Based on XGBoost Model

Academic Journal of Science and Technology
The classification of roadway surrounding rock is a very important link in the process of TBM construction. Its main purpose is to determine the drilling parameters such as bit type and cutterhead speed used in the process of shield tunneling according to different surrounding rock characteristics, so as to ensure the safety and efficiency of ...
Zhang Hu, Zhanbiao Yang
openaire   +1 more source

Multi-Level Support Technology and Application of Deep Roadway Surrounding Rock in the Suncun Coal Mine, China. [PDF]

Materials (Basel), 2022
Chu H, Li G, Liu Z, Liu X, Wu Y, Yang S.
europepmc   +1 more source

Geoelectric field response characteristics analysis of floor roadway surrounding rock fracture caused due to coal seam mining. [PDF]

Sci Rep, 2021
Ou Y, Zhang P, Fu M, Hu X, Wu R, Liu C, Sun B, Xu S, Li S, Tan L.   +9 more
europepmc   +1 more source

Mechanical Mechanism of Surrounding Rock Failure and Stability Control for Gob‐Side Entry Driving Near an Advancing Working Face

Energy Science & Engineering
Addressing the challenges of surrounding rock control in gob‐side entry driving near an advancing working face affected by adjacent working faces and gobs, taking 5104 return airway of No.1 well in Checun Coal Mine as the background, using theoretical ...
Delong Cui, Yujiang Zhang, Shuai Zhang, Xiangye Wu, Qian Wang, Bingyuan Cui, Defu Zhu   +6 more
doaj   +1 more source