测井技术对隧道深孔试验的指导作用研究

Research on Effect of Logging Technology on Guiding Tunnel Deep Bore Testing

研究目的:铁路隧道深孔水文地质试验和地应力测试是深孔勘探的重要目的之一,试验工作的成败和数据精度,是提高试验效率和资料可靠程度的重要保证。研究结论:在隧道深孔水文地质试验和地应力测试工作中,对数据精度和试验成败起决定性作用的三个因素是:(1)试验段的选取:划分满足试验要求的试验段,是实验成功的前提条件;(2)试验段上、下端止水点的确定:止水效果的好坏,是试验成功的保证;(3)试验段计算厚度的确定:准确确定水文地质试验的计算厚度,对试验数据准确与否起决定性作用。

Research purposes： The hydro - geological survey and the ground stress testing are very important for the deep bore drilling for the railway tunnel and its success or failure and its accuracy are crucial to improving the testing efficiency and data reliability. Research conclusions： In the works of the deep bore hydro - geological survey and the ground stress testing for railway tunnel, there are following three sectors to determine the whether the tests accuracy can be enhanced and whether the tests succeed or not ： （ 1 ） Selection of the testing section ： Dividing the test section that meets the test requirement is the prerequisite for the successful test. （2） Determination of water stop position on the top and bottom ends ： The effect of the water stop is crucial to the success of the test. （3） Determination of the thickness of the test section ： Determination of the calculation thickness of the hydro - geologic test plays a decisive role in accuracy of the test data.