内蒙古三号地井水位频谱与含水层参数特征分析
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摘要
采用平滑伪魏格纳分布方法,对内蒙三号地井数字化水位数据进行时频分析结果显示,引起三号地水位变化的主要潮汐分波有M_2波、S_2波、O_1波和K_1波,其中M_2波的振幅最大。基于卷积回归法得到了该井气压系数和M_2波潮汐因子,在此基础上,通过滑动拟合得到了不排水状况下该井的孔隙度和渗透系数。含水层垂直向应力变化量在两次水位下降阶段,所反应的构造张应力现象比较明显。
Using the smoothed pseudo Wigner-Ville distribution method,the digital water level data of the No.3 Well is analyzed.The results show that the main tidal waves which cause the water level of the third floor are M_2 wave,S_2 wave,O_1 wave and K_1 wave,and the amplitude of M_2 wave is maximal.Based on the convolution method,the gas pressure coefficient and the M_2 wave tidal factor are obtained.Based on this,the porosity and permeability of the well are obtained without drainage.It is obvious that the structural tension of the structure is more obvious than that of the water level.
Using the smoothed pseudo Wigner-Ville distribution method,the digital water level data of the No.3 Well is analyzed.The results show that the main tidal waves which cause the water level of the third floor are M_2 wave,S_2 wave,O_1 wave and K_1 wave,and the amplitude of M_2 wave is maximal.Based on the convolution method,the gas pressure coefficient and the M_2 wave tidal factor are obtained.Based on this,the porosity and permeability of the well are obtained without drainage.It is obvious that the structural tension of the structure is more obvious than that of the water level.
引文
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[16]郝美仙,韩晓明,张帆,等.阿拉善左旗5.8级地震数字化波形记录特征和震源机制解[J].高原地震,2015,27(4):6-10.
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[2]Kamp G.Gale J.E.Theory of Earth tide and barometric effects in porous formations withcompressible grains[J].Water Resources Research,1983,19:538-544.
[3]田竹君,谷园珠.地下水微动态资料的分析与处理[J].地震地质,1985,7(3):51-62.
[4]Rojstaczer S.Determination of fluid flow properties from the response of water levels in wells to atmospheric loading[J].Water Resources Research,1988,24(11):1927-1938.
[5]张昭栋,郑金涵,冯初刚.井水位的固体潮效应和气压效应与含水层参数间的定量关系[J].西北地震学报,1989,11(3):47-52.
[6]李春洪,陈益惠,田竹君.井-含水层系统对固体潮的动态响应及其影响因素[J].中国地震,1990,6(2):37-45.
[7]John Beavan and Keith Evans.etc.Estimating A quifer Parameters From Analysis of Forced Fluctuations i n Well Level:An Example From the Nubian Formation Near Aswan Egypt 2.Poroelastic Properties s[J].Journal of Geophysical Research,1991,96:12139-12160.
[8]Erskine AD.The effect of tidal fluctuation on a coastal aquifer in the UK[J].Groundwater,1991,29(4):556-562.
[9]张昭栋,郑金涵,张广城.水井含水层系统的潮汐响应函数[J].西北地震学报,1995,17(3):66-71.
[10]丁风和,赵铁锁,尹占军,等.大甸子井水位的气压系数及其震前异常[J].西北地震学报,2007,29(2):174-176.
[11]丁风和,韩晓雷,哈媛媛,等.承压井含水层孔隙度与固体骨架和水的体积压缩系数之间的关系[J].地球科学,2015,40(7):1248-1253.
[12]丁风和,戴勇,宋慧英,等.大甸子井-含水层系统水文地质参数间的变化关系[J].地震地质,2015,(4):982-990.
[13]丁风和,哈媛媛,王勇,等.基于数字化水位的张渤带地区构造应力场时序特征分析[J].地震,2015,35(2):133-138.
[14]戴勇,高立新,陈立峰,等.地震前兆数据时频分析[J].地震地磁观测与研究,2016,37(6).
[15]郝美仙,周银兴,刘颖,等.内蒙古测震台网新震级标度试用[J].地震地磁观测与研究,2016,37(5):10-14.
[16]郝美仙,韩晓明,张帆,等.阿拉善左旗5.8级地震数字化波形记录特征和震源机制解[J].高原地震,2015,27(4):6-10.
[17]郝美仙,尹战军,丁风和,等.2015年阿拉善左旗5.8级地震震源机制解分析[J].地震地磁观测与研究,2016,37(4):1-5.