YCJF-25型全液压冲击反循环钻机及其应用效率分析

YCJF-25 Percussive and Reverse Circulation Hydraulic Rig and Its Application Efficiency Analysis

摘要:

主要为大口径基础灌注桩施工而设计的YCJF-25型全液压冲击反循环钻机具有碎岩能量大、破岩效率高、排渣速度快、能有效避免孔底岩屑的重复破碎的特点。介绍了YCJF-25型全液压冲击反循环钻机性能参数，阐明了钻机的结构特点，对比分析了钻机的施工效率。

Abstract:

Mainly designed for large diameter foundation grouting pile construction, YCJF-25 percussive and reverse circulation hydraulic rig has the advantages of large rock breaking energy, high rock breaking efficiency, fast discharging ability and repeated bottom cuttings breaking can be effectively avoided. The paper introduces YCJF-25 percussive and reverse circulation hydraulic rig about its performance parameters, illustrates its structure features and analyzes its construction efficiency.