Built-in type structure for blocking slurry in process of ejecting pipe out of hole
REN LONGYUAN, CHENG YUANLIN, HUANG XING, LUO GUOFENG, CAI MIANSHENG, GONG JIANWU
Year of Publication 19.02.2014
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Year of Publication 19.02.2014
Patent
Tube pushing machine hole-out slurry stopping sealing receiving device
REN LONGYUAN, CHENG YUANLIN, HUANG XING, LUO GUOFENG, CAI MIANSHENG, GONG JIANWU
Year of Publication 19.02.2014
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Year of Publication 19.02.2014
Patent
Weak freezing sealing water-stopping structure of soil body between pipe roofs
REN LONGYUAN, CHENG YUANLIN, HUANG XING, CHENG XI, LUO GUOFENG, GONG JIANWU
Year of Publication 10.04.2013
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Year of Publication 10.04.2013
Patent
Slurry block sealing device
REN LONGYUAN, CHENG YUANLIN, HUANG XING, CHENG XI, ZHAO GUOHUA, LUO GUOFENG, GONG JIANWU
Year of Publication 30.05.2012
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Year of Publication 30.05.2012
Patent
Pneumatic control continuous grouting pressure maintaining tank
REN LONGYUAN, CHENG YUANLIN, HUANG XING, CHENG XI, ZHAO GUOHUA, LUO GUOFENG, GONG JIANWU
Year of Publication 30.05.2012
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Year of Publication 30.05.2012
Patent