supported by the National Natural Science Foundation for Excellent Young Scholars of China(No.52222110);the Natural Science Foundation of Jiangsu Province(No.BK20211230).
Coral reef limestone at different depositional depths and facies differ remarkably on the textural and mineralogical characteristics,owing to the complex sedimentary diagenesis.To explore the effects of pore structure...
This work was supported by the National Natural Science Foundation of China(No.51774272);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX21_2337).
Several derivative disasters such as ground pressure disasters and methane explosions can be caused by the hard roof in coal mines.For limestone roofs with fine integrity and extreme hardness,collapse is difficult and...
The Subtropolis Mine is a room-and-pillar mine extracting the Vanport limestone near Petersburg,Ohio,U.S.In February of 2018,mine management began implementing a heading re-orientation to better control the negative e...
Low grade dumped limestone sample having high silica of 8.1%, 36.8% CaO, and 3% Al2O3 has been studied with the aim to reduce the silica level to below 3% for its utilization in iron making. Beneficiation study of the...
The development of a multiple level underground mine is a complex task in which geology,engineering,ground control,and unit operations are integrated into a single mine design.The components are interdependent and mus...
The management of overburden is an important task in open pit exploitations. Site topography and morphology as well as geological and geotechnical properties of natural and remoulded materials are the most important f...
The main purpose of current study is development of an intelligent model for estimation of shear wave velocity in limestone. Shear wave velocity is one of the most important rock dynamic parameters. Because rocks have...
The shear behavior of a single rock joint in limestone specimens,under a constant normal load(CNL),was analyzed in this study.Test specimens with different asperity roughness were prepared and tested.Goodman's model o...
funded by the State Key Development Program for Basic Research of China(No.2013CB227900);the Joint Funds of the National Natural Science Foundation of China(NoU1261201);Prof.Mao Xianbiao for his valuable assistance in the preparation of manuscript
The characters of limestone in weak interlayer of a high rocky slope in Xuzhou, China, are studied by shear static test and shear creep test. The results show that limestone specimens have attenuation creep properties...
The water abundance of mine floor limestone needs to be solved urgently as the average depth of coal mining in China has increased gradually. A method is presented to discuss water abundance with the numerical and phy...