School of Mechanical and Electrical Engineering, North China Institute of Science and Technology School of
Mechanical Electronic and Information Engineering, China University of Mining and Technology ( Beiing)

为了研究激励法超前探测仪器工作效率最佳时约束电极的位置参数b和电流强度参数k的取值范围,分析了激励法超前探测技术的基本原理,将掘进工作面前方煤(岩)看作线性时不变系统,建立了掘进工作面电场的数学模型,得出了掘进前方某位置的标量电位函数,提出了电场约束效率ηei的概念。借助Matlab软件,通过对比参数b和k分别取不同值时,约束效率ηei及其增量Δηe的变化规律,分析电极位置参数b和电流强度参数k对探测范围的影响,得出b和k的最佳取值是b=3 m,k=2.0~2.5,此时超前探测仪器的工作效率最高。

In order to study the parameter of the restriction electrode location when the working efficiency of the advance detection instrument applied in the excitat ion method was in the best time and the value selection ranging of the current strength parameter, the paper analyzed the basic principle of the excitation method adva nce detection technology. The coal ( rock) in the front of the mine gateway driving face as an unchanged system in linear was applied to establish a mathematic model of the driving face electric field. The scalar electric potential functions of a location in the front of the driving face were listed and the conception on the restriction efficie ncy of the electric filed.Due to the Matlab Software application, with the comparison and individual collection of the different value as well as the restriction efficiency ηe iand increased variation law Oηe, the paper analyzed the electrode location parameters and the current strength parameters and the influences to the detection scope. The obtained valueb and the optimized valuek would be 3 m and 2.0 ~ 2.5 respectively. At this moment, the working efficiency of the advance detector would be the hi ghest.

国家高技术研究发展计划(863计划)重大基金资助项目(2012AA06A405)；中央高校基本科研业务费资金资助项目(3142013063)；华北科技学院教研基金资助项目(HKJY201409)；