排序方式： 共有25条查询结果，搜索用时 281 毫秒
1.
Prasanta Kumar Behera Kripamoy Sarkar Ashok Kumar Singh A. K. Verma T. N. Singh 《Journal of the Geological Society of India》2016,88(6):725-735
In opencast mining operation, the stability of waste materials stands at high priority from the safety and economic perspective. Poor management of overburden (OB) dump results the instability of slope in an opencast mine. The present paper deals with the stability analysis of dump material of an opencast coal mine at Talcher coal field, Angul district, Odisha, by means of different geotechnical parameters and mineralogical composition affecting the dump slope. The prolonged rainfall in the mining area causes dump failure and loss of valuable life and property. A recent dump failure that occurred in 2013 at Basundhara mines of Mahanadi Coalfields Limited (MCL), Odisha, took 14 lives, and created problems for the mining industry. Most of the dump failure that occurs in the study area are mainly due to increase in pore water pressure as a result of rainfall infiltration. The stability of the waste dump was investigated using the limit equilibrium analysis to suggest an economical, sustainable and safe disposal of the dump in the study area. 相似文献
2.
3.
4.
5.
6.
7.
Tidal variations in the Sundarbans Estuarine System, India 总被引：1，自引：0，他引：1
MEENAKSHI CHATTERJEE D SHANKAR G K SEN P SANYAL D SUNDAR G S MICHAEL ABHISEK CHATTERJEE P AMOL DEBABRATA MUKHERJEE K SUPRIT A MUKHERJEE V VIJITH SIDDHARTHA CHATTERJEE ANWESHA BASU MADHUMITA DAS SARANYA CHAKRABORTI ARAVIND KALLA SURJA KANTA MISRA SOUMYA MUKHOPADHYAY GOPAL MANDAL KANKAN SARKAR 《Journal of Earth System Science》2013,122(4):899-933
8.
9.
10.
Stability of slope will always a problem due to its geodynamic nature of Himalayan region. The area investigated belongs to
the Lower Siwalik formation, which is prone to failure due to presence of various weak planes or structures present in the
rock mass. Frequent landslides causing loss of life, property, disturbance of morphological, surface and subsurface water
flow pattern. A huge landslide in the Amiyan area occurred in 1999 and blocked the Gaula River which caused loss of agricultural
land and other properties as well as waterlogged upstream side. The debris of Amiyan slope contains soil and sandstones of
various types. This article deals with instability analysis of slopes of the Amiyan area, near Kathgodam, Nainital, Uttarakhand.
This area experiences a number of local as well as regional slides. Extensive field surveys have been carried out to understand
the geological detail. Laboratory experiments have been conducted to determine the various physicomechanical properties of
rock mass. These properties have been used as input parameters for the numerical simulation. A number of researchers have
used two-dimensional numerical models to simulate the slide area. Three-dimensional slope stability studies provide a better
understanding of the mechanism of failure as well as zone of influence. The computed deformations and stress distribution,
along the failure surface, have been compared with the field measurements and found to be in good agreement with field observations.
In this case, finite difference method has been applied on the stability analysis of Amiyan slope. The study indicates that
the slope is vulnerable and needs proper protection. 相似文献