Device for re-forming hole after hole collapse before pile foundation concrete pouring von CHEN XINBO, QIAO BIN, YUWEN PUHENG, SHI CHUNTAO, LYU JINGBO, WANG CHAO, TANG KAI, ZHANG CHENYANG, YANG BEN, GAO WENGUANG, CHEN KAILEI

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Device and method for re-forming hole after hole collapse before pile foundation concrete pouring von CHEN XINBO, QIAO BIN, YUWEN PUHENG, SHI CHUNTAO, LYU JINGBO, WANG CHAO, TANG KAI, ZHANG CHENYANG, YANG BEN, GAO WENGUANG, CHEN KAILEI

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Water stopping and leaking stoppage structure and water stopping and leaking stoppage method for lock catch steel pipe pile cofferdam von YUWEN PUHENG, LI XIMING, ZHENG WENJING, DAI MENG, HE JUN, DANG WENBO, FAN WENKANG, QUAN WENBO, MENG XINGTAO, WANG CHAO, YANG SHUHUA, YANG BEN, LI ZHENGXUAN, ZHANG LI, SUN WENHUI

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