| 摘要 |
PURPOSE: A stability determining method of a linear winch anchor block is provided to prevent a safety accident by determining whether an anchor block is safe as much as the anchor block can resist a power of pulling a pipe line. CONSTITUTION: A total passive earth pressure of an anchor block is calculated and the frictional resistance of the anchor block is calculated (S120). A total resistance by sliding and a sliding stability coefficient are calculated and a perpendicular stability coefficient is calculated (S150). If the sliding stability coefficient and the perpendicular stability coefficient are same or bigger than 1.5, the anchor block is determined that it is safe (S160). [Reference numerals] (AA) Start; (BB) End; (S110) Step of calculating the total passive discharge pressure of an anchor block; (S120) Step of calculating the frictional resistance (Fr) of the anchor block; (S130) Step of calculating the total resistance (Ft) due to sliding; (S140) Step of calculating a sliding stability coefficient (F,V); (S150) Step of calculating a vertical stability coefficient (F.V); (S160) Step of determining that a state is stable when a sliding stability coefficient (F.S) is 1.5 or more and a vertical stability coeffcient is 1.5 or more.
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