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From January to June China iron ore supply exceeds demand more than 33 million t


Granite specimen with the stress, b value with time curve (4) destruction of instability in the rock before the rapid increase in the number of acoustic emission,vibram five fingers outlet, a large number of acoustic emission energy release,mulberry outlet, b value decreased rapidly, are a precursor to rock failure characteristics. Instability of rock failure precursor characteristics of acoustic emission monitoring for the stability of mine rock and rock blasting and other places pressure caused by disaster forecasting power of great significance. References [1] LeixL, SatohTS. Indicatorsofcriticalpointbehaviorpriortorockfailur einferredfrompre-failuredamage [J]. Tectonophysics ,2007,431:97-111. [2] Zhao Xiangdong, Chen Bo, Fu-Xing Jiang. Micro Earthquake Engineering Research [J] Journal of Rock Mechanics and Engineering, 2002,21 (by 2) :2609-2612. [3] BlakeW. Microseismicapplicationsformining-apracticalguide [R]. Washington. : BureauofMines,radii shoes sale, 1982. [4] GanneP, VervoortA, WeversM. Quantificationofpre-peakbfit-tledamage: Correlationbetweenacousticemissionandobservedmicro-fracturing [J]. InternationalJournalofRockMechanics & MiningScience ,2007,44:720-729. [5] Li Shu-Lin, Yin Xiangang. Wang Yong Jia, et al. The whole process of uniaxial compression rock failure characteristics of acoustic emission [J]. Rock Mechanics and Engineering, 2004,23 (15) :2499-2503. [6] Fu Xiaomin. Typical uniaxial compression of rock deformation and acoustic emission characteristics of experimental research [J]. Chengdu University of Technology: Natural Science, 2005,32 (1) :17-21. [7] Zhang Ru, Xie, Liu Jianfeng, et al. Uniaxial loading of rock destruction of multi-stage test of acoustic emission characteristics [J]. Rock Mechanics and Engineering, 2006,25 (12) :2584-2588. [8] Zhaoxing Dong, Li Yuanhui, Yuanrui Fu, et al. Acoustic emission-based dynamic positioning of the evolution of rock crack [J]. Rock Mechanics and Engineering, 2007,26 (5) :944-949. [9] has the body, Ma Jin, Liu LQ, et al. Extended process of rock fracture AE b-value and significance of the dynamic characteristics [J]. Seismology and Geology, 1995,17 (1) :7-11. [1O] Li Quanlin, Yu Tao, Hao Bailin, et al. Earthquake frequency magnitude relations of space-time scan a [M] Earthquake Press, 1979. (Received 2008-06-14) • Information Court from January to June China iron ore supply over demand more than 33 million t Lange Iron and Steel July 23 message, in the first half, domestic iron ore in June imports of 37.79 million t, the history and daily imports are total imports of iron ore supply capacity of 430 million t, while the country the highest 1.259 million t, in the first half,replica oakley sunglasses, China imported iron ore, pig iron production within the required total iron ore 396 330 000 t, China's iron ore supply over demand 33 million t or more. Above means that the global iron ore supply situation is easing. According to reports, statistics in June within the scope of the domestic iron ore production for the first time exceeded 80 million t, to reach 81.56 million t, for three consecutive months to create a single month record, in the first half, totaling more than 39,255 Chinese domestic ore Wan t. If the count of small mines, the Chinese domestic ore converted into finished products mines about 200 million t. Meanwhile, China imported 68.23023 Wan t. From the demand side, the first half total of 247.71 million Chinese pig iron production in t, an increase of 9.5%,herve leger toronto, demand for iron ore of 396.33 million t. It should be noted that the pig iron production continued to show a slowdown in momentum in 2008, pig iron production increased by 4,5,6 months were 9%, 8.7% and 6.8%. (China Coal beneficiation Network 2008-07-24) - 6543200000008642086420
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