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

TANG Ai-guo

doi:10.3969/j.issn.1672-7428.2015.10.014

2015 No. 10

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TANG Ai-guo. YCJF-25 Percussive and Reverse Circulation Hydraulic Rig and Its Application Efficiency Analysis[J]. DRILLING ENGINEERING, 2015, (10): 55-58. doi: 10.3969/j.issn.1672-7428.2015.10.014

Citation:

TANG Ai-guo. YCJF-25 Percussive and Reverse Circulation Hydraulic Rig and Its Application Efficiency Analysis[J]. DRILLING ENGINEERING, 2015, (10): 55-58. doi: 10.3969/j.issn.1672-7428.2015.10.014

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

TANG Ai-guo

Publish Date: 10 October 2015

Abstract

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 construc-tion efficiency.
- percussive and reverse circulation hydraulic rig /
- performance parameter /
- structure feature /
- construction effi-ciency