نتایج جستجو برای: rock mass structure

تعداد نتایج: 2005773  

Journal: :جغرافیا و مخاطرات محیطی 0
محمد مهدی حسین زاده سعید رحیمی هر آبادی حسن اروجی مهدی صمدی

introduction one of the factors affecting in the control of environmental hazards, is the stability of the structure landforms. human activities especially in the case transportation, and also the need to expand it in different areas, can significantly affect on the region geomorphologic structures and causing high damages on life and financial. as a result, human activity can operate as a fact...

Journal: :Rock Mechanics and Rock Engineering 2018

Journal: :Advances in Civil Engineering 2023

The dynamic parameters of a dangerous rock mass reflect the degree damage structure its surface. There is still an urgent problem to identify based on characteristics constant micromotion at site. To address this problem, method proposed undergoing excitation caused by micromotion: (1) vibration from classified as forced undamped structural with single freedom. ratio amplitude spectrum bedrock ...

2003

The Yucca Mountain Project is conducting a Single Heater Test (SHT) in the Exploratory Studies Facility at Yucca Mountain. This report describes the thermal and thermomechanical data collected for the SHT through the third quarter of heating (through 31 May 1997) and compares the data with numerical predictions in order to gain insight into the coupled Thermal-Mechanical-Hydrologic-Chemical pro...

Journal: :International Journal of Mining Science and Technology 2020

2008
Jonathan Wan Nick Spadaccini

Rock mass description and characterisation is a basic task for exploration, mining work-flows and ground-water studies. Rock analysis can be performed using borehole logs that are created using a televiewer. Planar discontinuities in the rock appear as sinusoidal curves in borehole logs. The aim of this project is to develop a fast algorithm to analyse borehole imagery using image processing te...

A. S. Atkins F. Doulati Ardejani, R. N. Singh

The paper is concerned with the hydrogeological appraisal of the proposed mining operations in theThar lignite field in Sindh, Pakistan. The Thar coalfield covers an area of approximately 9000km2 andcontains three lignite seams lying at depth of 130m to 250 m. In the Thar lignite field, the presence ofthree main aquifers induces pore pressure in the rock mass surrounding the lignite seams and m...

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