Hanging wall vs footwall mining
WebOre and waste (both the hanging wall and the footwall) should be strong, and the ore should not be affected by storage in the stope. shrinkage stoping The miners, working upward off of broken ore, drill blastholes in … WebMar 11, 2024 · While this method is highly productive, it is feasible only when the ore, footwall, and hanging wall are of good quality. Room-and-pillar mining is used to recover ore in open stopes. It leaves pillars to …
Hanging wall vs footwall mining
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WebApr 1, 1997 · The data also showed that the hanging wall and footwall rock mass failure is closely linked to mining activity, movements of caved waste rock, and the presence of geologic structures. The two sides of a non-vertical fault are known as the hanging wall and footwall. The hanging wall occurs above the fault plane and the footwall occurs below it. This terminology comes from mining: when working a tabular ore body, the miner stood with the footwall under his feet and with the hanging wall … See more In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result … See more Slip is defined as the relative movement of geological features present on either side of a fault plane. A fault's sense of slip is defined as the … See more All faults have a measurable thickness, made up of deformed rock characteristic of the level in the crust where the faulting happened, of the rock types affected by the fault and of the … See more In geotechnical engineering, a fault often forms a discontinuity that may have a large influence on the mechanical behavior (strength, deformation, etc.) of soil and rock masses in, for example, tunnel, foundation, or slope construction. The level of a … See more Owing to friction and the rigidity of the constituent rocks, the two sides of a fault cannot always glide or flow past each other easily, and so occasionally all movement stops. The regions of higher friction along a fault plane, where it becomes locked, … See more Faults are mainly classified in terms of the angle that the fault plane makes with the earth's surface, known as the dip, and the direction of slip along the fault plane. Based on the direction of slip, faults can be categorized as: • strike … See more Many ore deposits lie on or are associated with faults. This is because the fractured rock associated with fault zones allow for magma ascent or the circulation of mineral-bearing … See more
WebJan 13, 2024 · However, regardless of mining directions, the overlying structure of the hanging wall is stable and fault activation is not obvious, while that of the footwall is relatively active and fault activation is violent; the risk of rock burst on the footwall is … Web2.17K subscribers. Share. 34K views 9 years ago. draw a normal, and reverse fault Label the hanging wall, and footwall for each ALSO - show how they move for each fault. Show more.
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WebOct 23, 2024 · The terms “hanging wall” and “footwall” are old mining terms. The hanging wall block was the block of rock where miners would hang their lanterns; the footwall block was where miners would walk. It is easy to determine which side of the fault is the …
WebMar 13, 2011 · Flat room-and-pillar mining. Room-and-pillar mining is applicable to tabular mineralization with horizontal to moderate dip at an angle not exceeding 20° (see figure 5). ... The drift layout is the same on each sublevel (i.e., parallel drives across the orebody from the footwall transport drive to the hanging wall) but the patterns on each ... road traffic accident cookstownhttp://www.ironminers.com/mining-school/footwall/ road traffic accident fife todayWebAbstract: To explore the influence of different mining sequences on the fault stability, this paper put forward the hypothesis of stress rotation based on pressure arch theory. Firstly, a numerical model was set up to simulate the process of working face passing through the fault from the hanging wall and footwall to the fault. sneakers timberland uomohttp://www.ironminers.com/mining-school/hanging-wall/ sneakers tipo mcqueenWebWhen there are faults in the coal measure strata, the coal mining is easy to cause the slip and instability of the fault zone, resulting in abnormal response of surface deformation. In order to reveal the above abnormal response mechanism, based on FLAC 3D software, a numerical simulation model of reverse fault footwall mining is established to simulate … road traffic accident law scotland llpWebHanging wall vs. footwall. Faults are like planar breaks in blocks of crust. Most faults have a slope (rarely, they can be vertical). On a sloping fault, crustal blocks are classified as: Footwall (block below the fault). Hanging wall (block above the fault). sneakers tightsWebMining using large scale underground sublevel caving results in caving of the surrounding host rock and mining-induced ground surface deformations. These effects are most prominent on the hangingwall side, but also develop to some extent on the footwall side of an orebody mined with caving methods. This situation is, in many respects, similar to that … road traffic accident management ppt