化学示踪连通试验在矿井充水条件探查中的应用

为获取地下水流速和渗透系数等水文地质参数、查清含水层水力联系、查明矿井充水条件，在内蒙古某矿设计实施了化学示踪试验。通过对国内外化学示踪试验资料整理、统计分析，总结出化学示踪剂用量与投放距离、含水层性质的经验关系式，并对本次示踪剂用量做出了评价。同时，对试验中监测点水中均未出现Cl-浓度增高现象进行了科学解释，提出类似含Cl-示踪剂中的某些离子可能被地下岩层特定矿物质吸附时，只要化学试剂中的一种离子能达到试验效果，且具有成本低、易获取等特点，即可选择其作为示踪剂的观点。

The application of chemical tracer experiments on exploring the mine water filling conditions

In order to obtain hydrogeological parameters，such as，groundwater flow velocity and permeability coefficient，identify the aquifer hydraulic connection and verify mine hydrogeological conditions，a chemical tracer experiment was designed in a coal mine in Inner Mongolia.Based on the analysis of chemical tracer experiment data collected，the empirical formulas of the tracer dosage were summed up，taking account of the influence of the delivery distance and aquifer properties，and tracer dosage in this time were evaluated.At the same time，the phenomenon that the concentration of Cl-were not increased in the monitored water were explained with scientific theories，and the theories were put forward that those chemical agents which are similar to chlorine ion tracers，easy to obtain，cheap and able to achieve test results with one ion can be selected as a tracer，even some ions may be absorded by rock layers.