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同时底部无轴承室、无盘根密封，无需维护、永无漏水漏浆之忧。
Non-bearing room and non-packing seal in the bottom, which does not need to vindicate , no need to worry about the water and thick liquid leakage forever.
防止漏水、漏浆等方面叙述了钻孔灌注桩施工事故的防范及处理措施。
This paper describes some measures to prevent and treat such accidents in aspects of collapse, reinforcement cage moving up or bending, water or mortar leakage and so on.
本文通过对某大桥钻孔灌注桩施工情况分析。阐述了钻孔灌注桩施工中岩层漏浆故障的原因。
By studying a case, the authors state the reasons of rock layer leakage in the construction of drilling and pouring stakes.
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