打樁機頂部滑輪組、立柱、鉆頭和鉆桿的設計中英文翻譯-資料下載頁
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【導讀】利用了應力的理論和能量守恒定律以及一些相關的運算法則。彈量和阻力指數(shù)之間的關系或者和巖石硬度之間的定量關系，已經(jīng)確定。了一個明確的答案。質(zhì)，包括施密特錘沖擊和ShoreScleroscope。情況和幾種常用的材料性能，特別是硬度。巖石硬度指標它已廣泛應用超過30年。為了驗證估計的巖石性質(zhì)和這種方法的。各種技術記錄施密特錘反彈的實驗結果。施密特反彈值測量同一種巖石類型已被提出和在文獻中報道的(Hucka,盡管在之前有很多的實驗結果表明，施密特錘的反彈是巖石可。的良好線性關系是創(chuàng)造巖石可鉆性指標的前提。分析結果不僅提供了加深對施密特錘關于變化范圍和條件的理解。施密特錘主要的組成包括一個活塞，彈簧和砧，就像在Fig.1展示的一樣。定施密特錘，在所有的測試中其能量沖擊是相同的。其中Ve是反彈的速度?；钊?，預計持續(xù)時間σ為50毫秒。在此期間，雖然大量的研究表明巖石的阻
【正文】 7134. Inyang, H. I., Pitt, J. M. (1993): The rock fracture hammer for indexing the impact strength of rocks in mechanical excavation. Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 30(7),707710. Janach, W., Merminod, A. (1982): Rock abrasivity test with a modi174。ed Schmidt Hammer. Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 19, 4345. Kolek, J. (1958): An appreciation of the Schmidt Rebound Hammer. Mag. Concr. Res. 10,2736. Lai Haihui, Li Xibing (1991): Mechanical rock fragmentation. CSUT Press. Li, X., Rupert, G., Summers, D. A. (1998): Energy transmission of the downhole hammer tool and its conditionality. Research report, RMERC, Rolla. Liu Zongping, Sun Jinlong (1990): Schmidt Hammer rebound data processing method andits application in estimating of rock drillability. Geoscience 4(4), 114125. Martini, L. A. (1971): Percussion drilling tool. . Patent 36112191. Poole, R. W., Farmer, I. W. (1978): Geotechnical factors a168。ecting tunnelling machine performance in caol measures rocks. Tunnels Tunnelling 10, 2730. Poole, R. W., Farmer, I. W. (1980): Consistency and repeatability of Schmidt Hammer Rebound data during 174。eld testing. Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 17,167171. Sheorey, P. R., Barat, D., Das, M. N., Mukherjee, K. P., Singh, B. (1984): Schmidt Hammer rebound data for estimation of large scale in situ caol strength. Int. J. Rock Mech. Min. Sci. Geomech. Abstr. 21(1), 3942. Szwedzick, T. (1998): Indentation hardness testing of rock. Int. J. Rock Mech. Min. . Abstr. 35(6), 825829. Wagner, H., Schumann, E. H. R. (1971): The stampload bearing strength of rock anexperimental and theoretical investigation. Rock Mech. 3(4), 195207. Wijk, G. (1989): The stamp test for rock drillability classi174。cation. Int. J. Rock Mech. . Geomech. Abstr. 26(1), 3744. Yong, R. P., Fowell, R. J. (1978): Assessing rock discontinuities. Tunnels Tunnelling 10,4548. Author39。s address: Xibing Li, 2996 Steven Martin Drive, Fairfax, VA 22031,
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