Discussion on Improvement of Rock Embedding Efficiency of Grab for Diaphragm Wall Engineering

JIA Xue-qiang; SU Wei; DING Hong-liang; LIU Yong-guang

doi:10.3969/j.issn.1672-7428.2015.10.016

2015 No. 10

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JIA Xue-qiang, SU Wei, DING Hong-liang, LIU Yong-guang. Discussion on Improvement of Rock Embedding Efficiency of Grab for Diaphragm Wall Engineering[J]. DRILLING ENGINEERING, 2015, (10): 59-62. doi: 10.3969/j.issn.1672-7428.2015.10.016

Citation:

JIA Xue-qiang, SU Wei, DING Hong-liang, LIU Yong-guang. Discussion on Improvement of Rock Embedding Efficiency of Grab for Diaphragm Wall Engineering[J]. DRILLING ENGINEERING, 2015, (10): 59-62. doi: 10.3969/j.issn.1672-7428.2015.10.016

Discussion on Improvement of Rock Embedding Efficiency of Grab for Diaphragm Wall Engineering

Publish Date: 10 October 2015

Abstract

Abstract

Rock-embedding is more and more required in diaphragm wall engineering.According to the low rock embedding efficiency of the grab widely used at this stage, take the characteristics of grabbed formation as the starting point, the analysis was made on the reasons of low rock embedding efficiency;with rock fragmentation theory as theoretical basis, some improve-ment suggestions were put forward in the grab weight, cylinder closing force, bucket teeth arrangement and grabbing mode.
- underground diaphragm wall /
- grab /
- rock embedding /
- bucket teeth arrangement