Application of Land Subsidence Inversion for Salt Mining-Induced Rock Mass Movement

2017 ◽  
pp. 340-354
Author(s):  
Ryszard Hejmanowski ◽  
Agnieszka A. Malinowska
Keyword(s):  
Rock Mass ◽  
Land Subsidence ◽  
Mass Movement ◽  
Salt Mining

Application of geophysical methods for the investigation of the large gravitational mass movement of Séchilienne, France

2005 ◽  
Vol 42 (4) ◽  
pp. 1105-1115 ◽  
Author(s):  
O Meric ◽  
S Garambois ◽  
D Jongmans ◽  
M Wathelet ◽  
J L Chatelain ◽  
...  
Keyword(s):  
Rock Mass ◽  
Mass Movement ◽  
Seismic Refraction ◽  
Geophysical Methods ◽  
Time Lapse ◽  
Gravitational Mass ◽  
Electrical Tomography ◽  
Refraction Tomography ◽  
Geophysical Surveys ◽  
Geophysical Techniques

Several geophysical techniques (electromagnetic profiling, electrical tomography, seismic refraction tomography, and spontaneous potential and seismic noise measurement) were applied in the investigation of the large gravitational mass movement of Séchilienne. France. The aim of this study was to test the ability of these methods to characterize and delineate the rock mass affected by this complex movement in mica schists, whose lateral and vertical limits are still uncertain. A major observation of this study is that all the zones strongly deformed (previously and at present) by the movement are characterized by high electrical resistivity values (>3 kΩ·m), in contrast to the undisturbed mass, which exhibits resistivity values between a few hundred and 1 kΩ·m. As shown by the surface observations and the seismic results, this resistivity increase is due to a high degree of fracturing associated with the creation of air-filled voids inside the mass. Other geophysical techniques were tested along a horizontal transect through the movement, and an outstanding coherency appeared between the geophysical anomalies and the displacement rate curve. These preliminary results illustrate the benefits of combined geophysical techniques for characterizing the rock mass involved in the movement. Results also suggest that monitoring the evolution of the rock mass movement with time-lapse geophysical surveys could be beneficial.Key words: gravitational movement, geophysical methods, Séchilienne.

scholarly journals Study on the influence of the deformation zones of the quarry sides on the rock mass movement

2021 ◽  
Vol 304 ◽  
pp. 02002
Author(s):  
Vokhid Kadirov ◽  
Sherzod Karimov ◽  
Uchqun Qushshayev ◽  
Durdona Sharapova
Keyword(s):  
Rock Mass ◽  
Mass Movement ◽  
Physical And Mechanical Properties ◽  
Structural Features ◽  
Open Pit ◽  
Open Pit Mining ◽  
Rock Masses ◽  
Mining Operations ◽  
Dump Trucks ◽  
The Stability

The article presents a study and analysis of the causes of deformation of the slopes and sides of the quarry indicates that the magnitude and nature of the deformation processes depend on the height of the ledge, the angle of slope of the slopes, the physical and mechanical properties, the lithological and structural features of the instrument array and the geodynamic activity of the fault zones. The influence of the deformation zones of the sides of the quarry on the transport of rock masses is justified. The zone of deformed masses of the ore deposit, which affect the movement of the rock mass, is studied. Each process performed in open pit mining is linked to another workflow. Without ensuring the safety of mining operations and performing the tasks set is impossible. Transportation of rock masses in the lower horizons of a deep quarry is one of the main tasks of the industry. At the same time, the removal of deformation and landslides in the area where the transport berm is being constructed for draining and continuous transportation is the main goal of the quarry. The stability of the transport berm depends directly on the stability of the side of the quarry. It is determined that the choice of a single-lane or twolane transport berm constructed for heavy-duty quarry dump trucks depends on the condition of the side of the quarry.

A GPS-based monitoring program of land subsidence due to groundwater withdrawal in Iran

2001 ◽  
Vol 28 (3) ◽  
pp. 452-464 ◽  
Author(s):  
S Morteza Mousavi ◽  
Abolfazl Shamsai ◽  
M Hesham El Naggar ◽  
Mashallah Khamehchian
Keyword(s):  
Land Subsidence ◽  
Groundwater Level ◽  
Land Surface ◽  
Mass Movement ◽  
Monitoring Program ◽  
Groundwater Withdrawal ◽  
Water Wells ◽  
Global Positioning ◽  
The Relationship ◽  
Rafsanjan Plain

Land subsidence, lowering of the land surface by mass movement, has been caused by human activities in many countries all over the world. The full economic impact of man-induced subsidence is large, yet difficult to estimate. Groundwater withdrawal is one of the most important causes of land subsidence that has caused extremely expensive damages to buildings, walls, roads, railroads, pipelines, and casings of the water wells. A necessary step to perform a proper analysis of land subsidence is to obtain accurate measurements of actual subsidence at certain intervals. The objective of this paper is to evaluate land subsidence using global positioning system (GPS) technique. One example of subsiding areas is the Rafsanjan plain, which has had the most subsidence in Iran. First, the latest situation of land subsidence in the Rafsanjan plain as well as the geological, hydrogeological conditions and groundwater utilization are explained. Next, the monitoring program and engineering works for its implementation are discussed. Finally, the results of two successive measurements carried out recently as the first attempt in Iran to monitor land subsidence by using GPS are presented and interpreted. Based on the results obtained, it was found that the relationship between the decline of groundwater level and land subsidence is not exactly or necessarily linear at every point. Also, the response of different points of the soil body within the plain would not be the same due to the groundwater withdrawal and the change in groundwater level. The ground behavior is influenced by many other factors such as the thickness of aquifer, soil structure, and interlaying manner of sublayers.Key words: land subsidence, groundwater, monitoring, GPS, Iran.

Comparison of Slope Mass Ratings Classification Systems: A Review

2021 ◽  
Author(s):  
JIBRAN QADRI ◽  
M Masroor Alam ◽  
Md Rehan Sadique
Keyword(s):  
Rock Mass ◽  
Slope Failure ◽  
Pore Water Pressure ◽  
Underground Mining ◽  
Water Pressure ◽  
Mass Movement ◽  
Classification Systems ◽  
Hazard Evaluation ◽  
Great Success ◽  
Slope Mass Rating

Abstract Engineering rock mass classifications are vital for empirical approach to evaluate and predict engineering behavior of a rock mass. Now well established empirical relations between behavior of the rock mass and the rock mass properties with regard to specific engineering applications have become an important tool for resolving many geo-engineering issues related to mega engineering projects. Engineering classifications of Rock Masses have been applied in tunneling and underground mining with great success for many years. Some rock mass classification systems developed originally for underground, excavations were also modified and adopted for many different applications including slope stability applications. The rocky slopes in general as well as along road and rail tracks are important locales for slope analysis and stabilization. In this study five classification systems are thoroughly studied for rock stability assessment and compared on the basis of reports of various research paper published so far. The methods are Slope Mass Rating and it’s off shoots, such as Continuous Slope Mass Rating, Chinese Slope Mass Rating, Graphical Slope Mass Rating and Landslide Hazard Evaluation Factor. We have tried to work which of these method can best predict slope failure as a normal process of mass wasting and mass movement as well as triggering mechanism such as pore water pressure increase, sudden down pour, earthquakes etc. So as to work out structurally controlled failure mechanism to find suitable ways for safe rock slope cuts for road networks in hilly and mountains terrain.

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