钎探法探测部分非金属管线中心位置和埋深的探讨

城市地下空间规划中，地下管线的新建和维护是很重要的环节，这都需要知道地下管线的准确位置，因此管线探测必不可少。在管线探测中，非金属管线的探测是比较困难的。论述了使用钎探法探测硬质大管径非金属管线，快速准确确定管线中心位置及中心顶部埋深的方法，推导出计算公式并编写了相应的软件，在实际工程中取得应用，快速而有效地解决了硬质大管径非金属管线探测的问题。

Discussion of Drilling Method to Detect Center Location and Depth of Some Non-metallic Pipeline

In the planning of urban underground soace, the construction and maintenance of underground pipeline is very important. To achieve this, it is essential to acquire the information of the underground pineline, and the detection of the pineline is necessary, the difficulty of which is the detection of non-metallic pineline. To non-metallic pipeline with hard material and big diameter, the drilling method has been used to detect it. Based on the drilling method, two-drill method has been studied for determinating the center and depth of non-metallic pipeline. A software package has been developed and evaluated by practical applications. Results has shown the effectiveness of the proposed method.