多层监测井成井工艺与止水材料研究

发布时间：2018-10-20 06:43

【摘要】：作为地下水监测最有效的手段,监测井在监测和研究地下水与地表水转化,分析地下水水化学变化特征,获得流域的地下水水文地质信息方面一直发挥着重要作用。本文以多层监测井为研究对象,在介绍了多种多层监测井的特点的基础上,重点对连续多通道多层监测井成井工艺、止水材料性能、多层监测井止水效果检验以及连续多通道多层监测井在黑河流域的实际应用进行了研究和分析,得到主要结论如下:(1)相比于其他多层监测井,连续多通道多层监测井更适合在我国推广应用,其成井工艺简单,施工成本低,施工人员劳动强度小,并且成井管材与采样设备均已实现国产,可以更好地推动连续多通道多层监测井在我国的发展应用,同时,自动化、智能化的监测,必然是未来多层监测井发展的方向。(2)通过土工试验,研究了两种新型止水材料(黏土球)的性能及其应用,为新型止水材料应用于多层监测井提供了数据支撑。(3)完善和改进连续多通道多层监测井的成井工艺,提高了施工效率,保证了成井质量,并将其总结为一套系统的多层监测井钻探与成井工艺,为该项技术在我国地下水监测工作进行推广提供很好的借鉴。(4)使用简易抽水试验和食盐电导率检验法对多层监测井相邻止水层的止水效果进行了检验,是对多层监测井止水效果检验方法的一种探索,其肯定了多层监测井分层止水的效果,证明了从多层监测井采集的地下水水样和其他数据信息的有效性和准确性,为地下水多层监测井的全面推广及应用奠定了基础。(5)连续多通道多层监测井可以获得水位、矿化度、离子浓度等大量的水文地质信息,为监测与研究黑河流域地下水与地表水转化,分析黑河流域地下水水化学特征提供了技术支撑。同时,通过连续多通道多层监测井在黑河流域的实际应用,将理论与野外施工结合起来,进一步证明了连续多通道多层监测井的数据准确性及其实用性。
[Abstract]:As the most effective means of groundwater monitoring, monitoring wells have been playing an important role in monitoring and studying the transformation between groundwater and surface water, analyzing the characteristics of groundwater hydrochemical changes and obtaining hydrogeological information of groundwater in the basin. On the basis of introducing the characteristics of multi-layer monitoring wells, this paper takes multi-layer monitoring wells as the research object, and focuses on the completion process of continuous multi-layer monitoring wells and the performance of watertight materials. The effectiveness test of multi-layer monitoring wells and the practical application of continuous multi-channel multi-layer monitoring wells in Heihe River Basin are studied and analyzed. The main conclusions are as follows: (1) compared with other multi-layer monitoring wells, The continuous multi-channel multi-layer monitoring well is more suitable for popularization and application in our country. It has the advantages of simple technology, low construction cost, low labor intensity of construction personnel, and the pipe material and sampling equipment have been made in China. It can better promote the development and application of continuous multi-channel and multi-layer monitoring wells in China. At the same time, automatic and intelligent monitoring is bound to be the direction of development of multi-layer monitoring wells in the future. (2) through geotechnical tests, The properties and applications of two new watertight materials (clay balls) are studied, which provide data support for the application of new watertight materials in multi-layer monitoring wells. (3) the completion process of continuous multi-channel multi-layer monitoring wells is improved and the operation efficiency is improved. The quality of well completion is guaranteed, and it is summarized as a set of systematic multi-layer monitoring well drilling and well completion technology. It provides a good reference for the popularization of this technique in groundwater monitoring work in China. (4) simple pumping test and salt conductivity test are used to test the watertight effect of adjacent watertight layers in multi-layer monitoring wells. It confirms the effect of multi-layer monitoring wells and proves the validity and accuracy of groundwater samples and other data information collected from multi-layer monitoring wells. It lays a foundation for the comprehensive popularization and application of groundwater multi-layer monitoring wells. (5) continuous multi-channel multi-layer monitoring wells can obtain a large amount of hydrogeological information, such as water level, salinity, ion concentration, etc. It provides technical support for monitoring and studying the transformation of groundwater and surface water and analyzing the hydrochemical characteristics of groundwater in Heihe River Basin. At the same time, through the practical application of continuous multi-channel and multi-layer monitoring wells in Heihe River Basin, combining the theory with field construction, the data accuracy and practicability of continuous multi-channel multi-layer monitoring wells are further proved.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P641.7

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