| 松散地层钻孔涌水量预报方法研究 |
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| 引用本文： | 王善堂.松散地层钻孔涌水量预报方法研究[J].地下水,2005,27(5):360-361,414. |
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| 作者姓名： | 王善堂 |
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| 作者单位： | 甘肃省地矿局第一地质矿产勘查院,甘肃,天水,741020 |
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| 摘 要： | 本文在讨论岩土饱和度与视电阻率关系的基础上,采用数理统计方法对天水盆地20口井的钻孔涌水量和视电阻率数据进行分析,建立了该地区松散层钻孔涌水量预报回归模型.选用一眼供水井实测数据对预报回归模型进行检验,实际涌水量与模拟值比较,两者相对误差为8.9%;进而采用该回归模型对其它供水井涌水量进行了预报,实际涌水量与预报值相比较,相对误差分别为7.0%、29.5%.结果表明,在河谷潜水井施工中,所建立的涌水量预报回归模型可在成井、抽水前预先估算钻孔涌水量,为地质与钻探决策提供了一定科学依据.
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| 关 键 词： | 数理统计 回归模型 钻孔涌水量 电测井 预报 |
| 文章编号： | 1004-1184（2005）05-0360-02 |
| 收稿时间： | 2005-05-02 |
| 修稿时间： | 2005-05-02 |
Study on Forecast method of Water Yield in Borehole of Loose Stratum |
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| WANG Shantang.Study on Forecast method of Water Yield in Borehole of Loose Stratum[J].Groundwater,2005,27(5):360-361,414. |
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| Authors: | WANG Shantang |
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| Abstract: | The article is based on discussion of the relation between lithosol saturation degree and apparent resistivity, adopts symbolic logic method to analyze water yield of boreholes and apparent resistivity data for 20 wells in Tianshui basin, and establishes the regression model for forecasting water yield of borehole in loose stratum. The regression model is checked by actual measured data from a water supply well. Comparing the actual water yield with forecasting value, the difference is 8.9 %. Furthermore the same test is done for other wells, their relative differences are 7.0% and 29.5% respectively. The results shows that the model can estimate the water yield of borehole for well drilling and before water pumping, thus provides certain scientific accordance for decision making of geological exploration in the construction of phreatic water well in river valley. |
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| Keywords: | symbolic logic regression model water yield of borehole electric well and forecast |
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