Steel strand assembly and foundation pit supporting anchor rod structure
ZHANG HAIFENG, ZHANG DEPING, GUO YUELONG, WANG YINXIAN, GAO JIANWEN, CHEN SANZHONG, ZHANG ZHIKAI, ZHOU YUCHENG, WAN JIAHE, GUO CUNFENG
Year of Publication 17.03.2023
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Year of Publication 17.03.2023
Patent
Plugging device, drilling assembly and construction device for stratum anchor rod construction
ZHANG HAIFENG, ZHANG DEPING, GUO YUELONG, WANG YINXIAN, GAO JIANWEN, CHEN SANZHONG, ZHANG ZHIKAI, ZHOU YUCHENG, WAN JIAHE, GUO CUNFENG
Year of Publication 17.03.2023
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Year of Publication 17.03.2023
Patent