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Inverse of C, Φ value in the open pit mine slope design

219t = 23. L. A wind of a 7.2mG5-133t 14. k a wind 4.2mG6-172t-12. Data and calculated a 12.61133.2.2 equation. A 279tb】】】 34md a 287t a 152tk = 8m if a 102t ∞ = 112t =: 3.8md3-57t a 201t6. A 7.2md. A 86t5-129tb5-4.2mds a 32tB a 168tb6 = 12.6Elid. A 36t for a lO8ltL'b a 69.8m = 600t s profile equation d: 1081, +69.8 c calculation of a 600 = 03.3 3, 4, section C, the value pursuant to section 3, 4 balance equation section and calculation of the simultaneous sliding body C, the value of the calculation formula calculated C,:, a {. Women [6. d] one. 6] [m]) / f [. . ] [6.6] [. b] a, a {121544x (a 709d0) a 8679x (a 1000437)} / (】 726570jx8679 a (12154d)) a 0.286arctg ~ b = 0.286 = 16. c == {[n. d] A a] [6. d] / {[a. n] a 6] j A {12154d × (a l000437) a 1276570 × to tie Nat Han si Ⅲ stern l2345 indeed gold mine design and construction in 1995, 4 (a 709O)) / {1276570 × 8679 a (1544)) a d. 18t/m4 prediction and points off we believe that the principle and cured by the inverse of c, m values in the vegetable species meaning I: strong representative speaking, this is because:. 1, physical and mechanical properties of rock, from the stack, the slope angle is the slope of rock fall is based on Luo, rain, water, mining explosion, as contained outside, exposed rock slope is caused by landslides when the condition Q . Can also say that the [is based, external cause is the condition. Down the slope with almost all the (artificial slopes and natural slopes) are the same inside and outside Quebec under the action of the body so the title against calculated by c, the value is included under certain conditions, both inside and outside [q means the demolition of the integrated elements. . 2 R landslide-inch scale test of the body is much the dog, which includes geological factors} chiseled body is more than Bin Pan 7. 4.3 i shake a specific anti-body computed from c, the value of friends to be addressed for dredging or hug; on the condition of the slope close to dinner closer to the international health segment. Mr vain, according to more than 4.4 body operator H to a tough summer for the sliding mass index where the Bianpo section, is statistically and relatively accurate. Here inverse landslide l c, the value of calculation errors. V an absolute error of ten 6】 747f. 7C-7】 eleven 4tV2 = lO8lf +69.8 C relative error of a 600-0 Vt / Gsin ~ 4/47l = 0.008-0.8V2/Gsin ~ = o/6O0 = 0 cut the average relative error is 0. 4 above the allowable total error range. 5 Conclusion elongation in slope did not withdraw the article reports, in order to complete the Waitoushan Iron mining in the deep slope design, we work through this, and seek the c, value, and this applied to slope design. Make do with the post-test report slope control, we selected the value of slope angle and the report recommends the basic urge Taiwan, achieved satisfactory results expected. Therefore I believe that in the production of ore mining at lI】 i curtain towel slope design, if there is no slope studies, using the above principles and methods}, on the slopes of thirty boats have been exposed to the body, the research analysis, obtained inverse 0 , the value of design as an important basis for the slope is very practical. The reported instances of this, expect to design distribution on the slope of the benefit. Received 1995-3-2-t l Ang Yun Ping of Design and Research Institute of the actinium]: engineer I Tibet Tibet Geology and Mineral rich in mineral resources has taken Jiekai t mystery minerals found very rich. Tibet Bureau of Geology and Mineral Sin soil mineral medium. 120 million barrier and autonomous regions. One million of the geological survey 1:100 Lan finished touch. Journal of Geological Survey 1:20 million, accounting for a suit before the completion of regional land area of the small l / a of the investigation. Present. Lou minerals have been discovered 96 prepared. Mines their towels more than 1,700 AU, manganese actinium jade, boron, lithium, copper and other minerals Clan base 11 Si forefront. Potential economic value of 4,200 billion yuan. These minerals I shade = manganese, boron into production and development base. 120 000 E-shaped ring and outside the production capacity of 80,000. He still Xiang baby scale mining of mineral. (Feng Journal correspondent) I. ... ... ... ... ... ... ... ... ... ...'''... ... ... ... ... ... ... ...' A ... ... 'L ... A ... 璺 Mexico ~ ~ ~ 璺 check one by one ... .... - ... One. ● lr one hundred eleven thousand one hundred and eleven ~ a
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