气动钻机在无水陡峻山区输电线路工程勘察中的应用实践

Application of Pneumatic Drilling Rigs in Geotechnical Engineering Investigation of Transmission Lines in Waterless Steep Mountain Areas

本文通过分析关键困难点,在广泛调研的基础上,确立了采用气动钻机结合孔内成像的思路。进而开展针对性选型设计,优选出一套模块化气动钻机,实现拆卸后最大单体可双人搬运,满足了陡峻山区搬运要求;结合智能孔内电视仪观察孔内情况并生成电子岩芯,用于界定地层分布。通过某无水灰岩山区塔位实施情况,表明气动钻机在无水山区钻探效率、总效率上较百型钻机有较大优势,配合智能孔内电视仪可准确界定地层,该套设备及勘察模式,在无水陡峻山区具有一定推广价值。

This article analyzes the key difficulties and establishes the idea of using pneumatic drill combined with in-hole imaging based on extensive research.Then,targeted selection and design are carried out to optimize a modular pneumatic drill,which can be disassembled and transported by two people in the largest single unit,meeting the transportation requirements in steep mountainous areas.Combined with intelligent in-hole television instrument to observe the situation in the hole and generate electronic core,it can be used to define the distribution of strata.The implementation of the pneumatic drill in a water-free limestone mountain area indicates that the pneumatic drill has a greater advantage over the hundredtype drill in drilling efficiency and overall efficiency in water-free mountainous areas.With the intelligent in-hole television instrument,the formation can be accurately defined.This equipment and survey mode have certain promotional value in water-free steep mountainous areas.