模块化微型桩钻机的研制及工程应用

Development and Engineering Application of Modular Micro-pile Drilling Rig

摘要:

目前，山区输电线路基础施工以人工挖孔工艺为主，存在施工效率低、安全风险高的问题，不能满足日趋严格的电力安全生产要求。文中根据20余年的旋挖钻机生产经验，结合山区地形复杂、运输困难、岩石抗压强度大等施工痛点，研制出重量轻、拆装简单、入岩能力强的山地模块化微型桩钻机，并根据山区“土薄，岩厚且硬”的地质特点，提出了相应的施工工艺，初步解决了实际的施工难题。所研发的山地模块化微型桩钻机，不仅提高了山区输电线路工程中基础施工的机械化程度，而且为山区电力线路工程施工提供了技术和工艺参考。

Abstract:

At present, the basic construction of transmission lines in mountainous areas is mainly based on manual hole digging technology, which has the problems of low construction efficiency and high safety risk, and cannot meet the increasingly strict requirements of power safety production. Based on the experiences in production of rotary drilling rigs more than 20 years, and combined with the construction pain points such as complex mountainous terrain, difficult transportation and high rock compressive strength, a modular micro-pile drilling rig with light weight, simple disassembly and assembly, and strong rock penetration ability is developed. Based on the geological characteristics of "thin soil, thick and hard rock" in mountainous areas, the corresponding construction methods for modular micro-pile drilling rig are proposed, which preliminarily solves the actual construction problems. The successful developed modular micropile drilling rig for mountainous areas not only improves the mechanization of foundation construction in mountainous transmission line project, but also provides a technical and construction method reference for power line engineering construction in mountainous areas.