地震应力波的传播与岩石的动态响应
PROPAGATION OF SEISMIC STRESS WAVE AND THE DYNAMIC RESPONSE OF ROCKS
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摘要: 本文用 Split-Hopkinson 压力杆装置研究了应力波通过破裂岩石试件的衰减现象。给出了灰砂岩、石灰岩两种岩石动态的破裂强度与应力应变关系.结合受应力作用的岩样切片的微观观察,对应力裂纹、裂纹的动态分叉现象进行了分析讨论.Abstract: In this paper, the attenuation phenomenon of stress wave transmitted through a fractured rock specimen has been studied by the method of the Split-Hopkinson bar. The dynamic strength and dynamic stress-strain curves for sandstone and limestone are given. Then, combining with microscopic observation of rock specimen sections under compressive loads, the phenomena of stress crack and the dynamic branch have been analysed and discussed.
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[1] R.M.Davies, A critical study of the Hopkinson Pressure Bar, Plail. Travis. Roy. Soc. A. 240,375——457, 1948.
[2] E. D. M. Daviea and S. C. Hunter, The dynamic compression testing of solid by tlm method of the Split——Hopkinsou Bar, J. dlecla. Phy. Solids, 11, 1963.
[3] 段祝平等,高应变率下金属动力学性能的实验与理论研究——维杆实验方法及其应用,力学进展,10,1,1——16,1980.
[4] 章根德,岩石在动态载荷作用下的脆性破裂,岩土工程学报,3, 2, 43——49, 1981.
[5] R. J. Christensen, Split——Hopkinaon Bar teats on rock under confining pressure, Exp.Mech., 12, 11,1972.
[6] L. M. Lindholin, The dynamic strength and fracture properties of olresscr basalt, Int. J. Rock: Mech. Min. Sci., 11, 5, 1974.
[7] 章根德,岩石对冲击载荷的动态响应,爆炸与冲击,2, 2, 1——9, 1982.
[8] A. Kumar. The effect of stress rate and temperature on the strength of basalf and granite, Geophysics, 33, 1968.
[9] D. S. William and D. James, Continuum theory of rock dilat.ancy, Advances in Rock Mechanics Reports of Cwrrent Research, 11, Part A, Proceedings of the Third Congress of the International Society for Rock Mechanics Themes 1——2, Dearer, 1974
[10] S. J. Green and K. D. Per Kiua, Basic and applied rock mechanics, Tenth Symposium on Rock Mechanics, ch 2. New Fork, 1972.
[11] C. J. Maiden and S. J. Green, Compressive strain——rate tests on aims selected meterials at strain——rate from 10——3 to 104 in./in./sec,. J. Appl. Meda., 33, 9, 1966.
[12] K. D. Hakalchto, The behaviour of rock under impulse loads,Acta, 31, 1969.[1] R.M.Davies, A critical study of the Hopkinson Pressure Bar, Plail. Travis. Roy. Soc. A. 240,375——457, 1948.
[2] E. D. M. Daviea and S. C. Hunter, The dynamic compression testing of solid by tlm method of the Split——Hopkinsou Bar, J. dlecla. Phy. Solids, 11, 1963.
[3] 段祝平等,高应变率下金属动力学性能的实验与理论研究——维杆实验方法及其应用,力学进展,10,1,1——16,1980.
[4] 章根德,岩石在动态载荷作用下的脆性破裂,岩土工程学报,3, 2, 43——49, 1981.
[5] R. J. Christensen, Split——Hopkinaon Bar teats on rock under confining pressure, Exp.Mech., 12, 11,1972.
[6] L. M. Lindholin, The dynamic strength and fracture properties of olresscr basalt, Int. J. Rock: Mech. Min. Sci., 11, 5, 1974.
[7] 章根德,岩石对冲击载荷的动态响应,爆炸与冲击,2, 2, 1——9, 1982.
[8] A. Kumar. The effect of stress rate and temperature on the strength of basalf and granite, Geophysics, 33, 1968.
[9] D. S. William and D. James, Continuum theory of rock dilat.ancy, Advances in Rock Mechanics Reports of Cwrrent Research, 11, Part A, Proceedings of the Third Congress of the International Society for Rock Mechanics Themes 1——2, Dearer, 1974
[10] S. J. Green and K. D. Per Kiua, Basic and applied rock mechanics, Tenth Symposium on Rock Mechanics, ch 2. New Fork, 1972.
[11] C. J. Maiden and S. J. Green, Compressive strain——rate tests on aims selected meterials at strain——rate from 10——3 to 104 in./in./sec,. J. Appl. Meda., 33, 9, 1966.
[12] K. D. Hakalchto, The behaviour of rock under impulse loads,Acta, 31, 1969.
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