“深厚填石层钻孔灌注桩潜孔锤钻头耐磨器应用技术研究”(2015)

    发布时间:2015-11-06 阅读次数:1140

    针对潜孔锤全护筒跟管钻进中存在的潜孔锤本体磨损严重、修复困难等问题进行研究,通过增设耐磨器,显著减少了潜孔锤本体的磨损,且耐麿器维修更换简便易行,提高了工效,降低了成本。该项技术成果已获得实用新型专利证书,并申报发明专利。

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shenzhen geokey group co., ltd. was established in october 1991. its registered capital is presently rmb320 million. the group is among those which..

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