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 Wysłany: Śro 19:23, 10 Lis 2010 Temat postu: ugg botas Opencast mine slope deformation and inst |
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Opencast mine slope deformation finite element analysis of instability
I circle a row of bad mode Jun Liu Yi I a bad set of loose soil layers - each layer of soil, revolves around a group of words tI orange gravel layer group; N of a group of weathered bedrock slope 3.2 finite element analysis of surface mine Many geological phenomena are occurring in the unloading process,[link widoczny dla zalogowanych], and its basic idea is to simulate the formation of similar slope as the rapid excavation of a number of steps. Once every excavation, the excavation of a finite element analysis and release of loads of people as the calculation of dumping He He set out satisfied. Thus the stability of the slope excavation simulation conditions. The formation of surface mine dump the problem can be regarded as filling, the simulations include: ① the geological formation of the initial layers of stress to increase step by step ② materials,[link widoczny dla zalogowanych], each phase of the calculated total displacement, strain and stress to get the full construction loading records, so as to achieve the deformation of the geological instability of the purposes described. In summary, we have established as shown in Figure 3, the discrete finite element model grid calculated displacement vector shown in Figure 4. Figure 5 shows the distribution of the corresponding damaged area. The results showed that the displacement vector characteristics, distribution and damage zone model tests and examples show that the landslide slip surface location, shape and overall distribution of consistent, with good similarity. Figure 3 a discrete model with the element t |) Landslide early Western Open Chong Yun surface tb) Mine safety drive shaft profile and landslides:. Figure 4 grid finite element displacement vector diagram ta) Pingzhuang Western Open r {I refuse section I (b) On the wall is too cut surface open pit slope Po MINING TECHNOLOGY 33 No. 3 1997 Figure 5 FEM Distribution of calculated damage zone 'a) Pingzhuang Western Open landslide surfacing (b) Opencast Mine refined Market surfacing on the slope rock mass geomechanical model of the mining activities in the further deformation by the instability under simulation, may be the final mining boundary slope were predicted to form the slope deformation and provide a more efficient design (literature 2, 3 refs), has been engineering practice. 4 Conclusion The widespread occurrence of a surface mine mechanical strength of the end of the soft plastic sandwich} mainly by rock slope deformation and instability of the structure, strength and occurrence conditions of weak interlayer constraints of engineering geological conditions; using finite element method can be better simulate the actual construction process, the failure mechanism of slope deformation; results show. Finite element analysis results and model test results and the overall trend of landslide instance consistent with good similarity. Evaluation of slope stability has certain reference value. Thanks a question TAM process research and written research director Rui Yongqin courtesy of Dr. Jade Engineering discipline. Zuguo Lin Engineering guidance. In this reference I also like to thank Dong Lan I was and so on. Livestock into the city system of high and stable geological research charge Luo, Chengdu Science and Technology Publishing House 19912 Coal Research Institute charge even ask mantle keep mold away West Hospital Pingzhuang Bureau of Mines Mineral h Northwest Side Town Station left off drawer Medical research management measures charge. Coal Science Research Institute 1993.1I3 perfect view I ask Edition Code. Ping Antaibao mold of mine to go outside the dumping charge I994.124 scorpion ear qualitative research charge and the total soil carbon science research brief view I asked J Building Code Bureau of Mines along the West Han Lu walked holding mineral soil and the West into the city area spike set G relationship. T 1994.12 Application of force referred fennel. Clamor. 28-year-old engineer is engaged in research in recent geological work completed to the city (the closing date {glass 10 again in 1996) (Continued from page 41) 3.3 The transformation of the cost according to the scene, the first group of 120 knife set complete with isolating switch 6O group. Block t120 group × 3 sets / groups × 130 yuan / Taiwan = 46,[link widoczny dla zalogowanych],800 yuan Knife: 6O group × 3 sets / groups × 200 yuan / Taiwan = 36,000 yuan. Mine need to be invested; 46,800 yuan +36000 element = 82800 yuan,[link widoczny dla zalogowanych], which is only a fraction of the value of the loss can be put into normal production, so the transformation is feasible. 4 Conclusion According to the design,[link widoczny dla zalogowanych], test and field experiments show that this transformation is successful. High-voltage line terminal through the isolation switch 34 * transformation to solve the electricity for the workers hung a big accidents. The project stage a piecemeal reform. But significant. Is a benefit that saves money and safety of the double benefit of a very good thing. Should actively promote the future use of anti-theft-type isolation switch, Front gradual improvement in use, making it more suitable for mine production. The first of the medium fennel t Xue Guangsheng Male 55 years old, graduated senior mechanical engineer asked the trunk version of soil edges. Nang Chau any pieces of mining machinery firm training. Equipment modification design 'income Mo again on 1 dates t1997)
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