摘要:
调和分析方法求得水位较重力固体潮的时间滞后△t,兖州、豫49、北京塔院及鲁14井分别为18.2、8.4、9.2和22分钟左右,这对研究地下水和地壳应力应变的关系及消除固体潮对水位的影响将起重要作用。#br#用逐步回归方法分析了兖州、塔院井近一个月的时值水位,较好地消除了诸因素对水位的影响,求出的残差△(t)曲线呈随机波动。剩佘标准差S分别为6.80和6.56毫米,在无区域应力引起水位变化的情况下,落在2S范围之外的点仅占2.6-3.4%。对逐步回归方法在深井水位数据处理中的应用,各自变量及它们之间的相互关系,进行了详细讨论,作了较严格的精度和稳定性检验。
Abstract:
The delay time △t of the change of water level compared to the change of earth tide at the wells of Yanzhou、NO. 49 of Henan. Tayuan of Bejing and NO. 14 of Shandon is respeetively about 18.2, 8.4, 9.2 and 22.0 minu-tes obtained by using the harmonic analysis method. It plays an important-role in the study of the relationship between underground water and stre-ss and strain of the earth's crust, and in the elimination of the influence of solid earth tide on water level.#br#The hourly values of water level in deep borehole at Yanzhou and Tay-uan wells during a period of nearly a month have been analysed by gradual regression method and the influence of various factors on the water level was eliminated. The obtained curve of residual △(t) shows random fluctuations. The residual standard error S is 6.8mm and 6.56mm respectively. The points out of the range of 2 S are only 2.6 to 3.4 per cent under the condition that the regional stress didn't produce the change of water level. The application of gradual regression method to the data processing of water level in a deep borehole, each independent variable and the relationship between indepondent variables have been discussed in detail, and the strict examination of precision and stabieity has been made.
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