Abstract:OVM anchoring system is the first anchoring system in China which adopts two pieces of quad type and 1860MPa low slack steel strand. This paper systematically introduces the basic properties, types of OVM anchoring system and its supporting multi-purpose YCW series tensioning jacks, and briefly introduces its application on the main cable of cable-stayed bridge (OVM-200 type cable anchor) and its combined application with other series anchors.

Abstract:Based on the experience of deep foundation pit support and rescue project of Gonghua Hotel and Department of Finance in Nanning, Guangxi, as well as the investigation and analysis of the main reasons for the foundation pit instability of more than 20 high-rise buildings, such as Tai 'an, Yindu, civil air Defense Office and exchange field, this paper puts forward some effective measures to avoid engineering accidents for reference in design and construction.

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