华北地区典型岩石在1万巴压力下的密度和弹性波速度的实验研究s
AN EXPERIMENTAL STUDY ON THE DENSITY AND ELASTIC WAVE VELOCITY OF TYPICAL ROCKS OF NORTH CHINA UNDER HIGH PRESSURE UP TO 10kb
-
摘要: 利用高压三轴容器,对华北地区九种典型岩石的密度和弹性波速度随压力的变化关系进行了实验研究。实验的最高压力达到10,500巴。实验中利用电阻应变片测量岩石的体积变化从而得到密度的变化。用高频脉冲法测量了弹性波速度。由得到的密度参数和波速参数计算出高压下岩石的声阻抗。根据体应变和波速随压力变化的曲线估算了岩石的体积模量,裂纹孔隙度,裂纹闭合压力,波速达到稳定变化时的压力以及波速达到稳定变化时的值与常压下的波速值的差。对这些参数在地学及爆破工程上的应用进行了简单的讨论。Abstract: An experimental study on variation of density and elastic wave velocity on nine typical rocks of North China was made by using a high presswre triaxial vessel. The maximum pressure in the experiments was 10.5kb. The volumetric strain was measured by means of resistance strain gauges and the variation of density was thus deduced. The elastic wave veloity was measured by the high frequency impulse method. Then the acoustic impedance under high pressure was calculated by parameters of density arid wave velocity. Prom the variation curves of volumetric strain and wave velocity with changes in pressure,the following quantities were calculated: the bulk modulus,the void ratio of cracks,the pressure of closing cracks,and the difference between the values of wave velocity above the pressure when it begins to change steadily and that at atmospheric pressure. The applications of these parameters to the earth sciences and explosion engineering was briefly discussed.
-
-
[1] 曾融生,固体地球物理学导论,科学出版社,1984,
[2] 力武常次、荻原幸男,物理地学,郑建中译,地震出版社,1980,
[3] Mavko, G. M., and A. Nur, The effect of nonelliptical cracks on the compressibility of rocks. J. Geophys. Rer., 83, 4459——4468, 1978.
[4] Birch, F., The Velocity of compressional wave in rocks to 10 kilobars, Part 1, J. Geophys. Res., 65,1083——1102, 1960,
[5] Birch, F., The Velocity of compressonal wave in rocks to 10 kilobars, Part 2, J. Geophys. Res., 66,2199——2241, 1961.
[6] 高龙生、葛焕称,中国大陆岩石标本在高压下的弹性波速的初步研究,地球物理学报,18,
[7] Cristensen N. L, Compressional wave velocities iv possible mantle rocks to pressures of 30 kilobars, J Geophyt, Kes., 79, 407——412, 1974, 26——38, 1975,
[8] 小田仁、铃木功、畜藤俊明、漱谷清,静水压下岩石弹性定数曲线地震,36, 151——167, 1983,
[9] 王耀文、郝晋异、刘永恩,1000。公斤2厘米,高压容器的研制,地球物理学报,24,56——63,1981.[1] 曾融生,固体地球物理学导论,科学出版社,1984,
[2] 力武常次、荻原幸男,物理地学,郑建中译,地震出版社,1980,
[3] Mavko, G. M., and A. Nur, The effect of nonelliptical cracks on the compressibility of rocks. J. Geophys. Rer., 83, 4459——4468, 1978.
[4] Birch, F., The Velocity of compressional wave in rocks to 10 kilobars, Part 1, J. Geophys. Res., 65,1083——1102, 1960,
[5] Birch, F., The Velocity of compressonal wave in rocks to 10 kilobars, Part 2, J. Geophys. Res., 66,2199——2241, 1961.
[6] 高龙生、葛焕称,中国大陆岩石标本在高压下的弹性波速的初步研究,地球物理学报,18,
[7] Cristensen N. L, Compressional wave velocities iv possible mantle rocks to pressures of 30 kilobars, J Geophyt, Kes., 79, 407——412, 1974, 26——38, 1975,
[8] 小田仁、铃木功、畜藤俊明、漱谷清,静水压下岩石弹性定数曲线地震,36, 151——167, 1983,
[9] 王耀文、郝晋异、刘永恩,1000。公斤2厘米,高压容器的研制,地球物理学报,24,56——63,1981. -
期刊类型引用(9)
1. 薛思敏，黄汉明，施佳鹏，袁雪梅，黎炳君. 基于EMD的IMF时域统计特征提取及其应用于震动事件源类型识别研究. 地震工程学报. 2022(01): 100-107 . 
百度学术
2. 庞聪，王磊，马武刚，江勇，廖成旺. 地震与爆破波形信号的EEMD多尺度分布熵提取和WOA-SOM神经网络识别研究. 大地测量与地球动力学. 2022(09): 980-984 . 百度学术
3. 梁宏，朱永莉，李大虎，刘雪梅，陈学芬，黄雪影，赵晶. 基于希尔伯特-黄变换的九寨沟M7.0地震加速度记录时频分析. 国际地震动态. 2019(07): 9-16 . 百度学术
4. 梁宏，李大虎，陈学芬，刘雪梅，陈兵，赵晶，赵天霞. 2014-11-22康定M_S6.3地震加速度记录的时频分析与震害特征. 大地测量与地球动力学. 2019(08): 875-880 . 百度学术
5. 吕国军，张合，李皓，李姜，李胜强. 河北尚义M4.0地震加速度记录时频特性分析. 地震地磁观测与研究. 2018(06): 136-142 . 百度学术
6. 柴凯，张梅军，黄杰，赵晶. 基于SVD-SGWT和IMF能量熵增量的液压故障特征提取. 机械设计与制造. 2015(03): 51-54 . 百度学术
7. 李大虎，李军，邓艳，严媚，安东妮，黄成程，汤才成. 云南香格里拉、德钦—四川得荣交界5.9级地震加速度记录的时频分析. 物探化探计算技术. 2015(06): 716-723 . 百度学术
8. 谢兴隆，孙晟，王彦春，任政委，李晶晶. 基于EEMD的地震瞬时属性在砂砾岩中的应用. 物探与化探. 2014(04): 717-722 . 百度学术
9. 李大虎，梁明剑，黎小刚，顾勤平. 2011年四川炉霍M_S5.3地震加速度记录的时频分析与能量计算. 西北地震学报. 2012(04): 335-341+358 . 百度学术
其他类型引用(5)
计量
- 文章访问数: 1146
- HTML全文浏览量: 26
- PDF下载量: 36
- 被引次数: 14
下载:
