基于期望造价的高边坡优化设计及工程应用*

基于边坡可靠性及优化原理,以工程总期望造价为目标函数,建立高边坡系统设计及开挖的优化模型.结合依托工程,对云南省富宁港区通用泊位某一陆域高边坡进行优化设计,得到边坡安全系数及可靠度与设计坡角之间关系,同时提出该边坡基于期望造价时不同损失系数下合理的开挖形式.通过对比分析,基于期望造价的高边坡优化设计理论可为实际工程提供参考和借鉴作用.

High slope optimization design and engineering application based on expectation cost

Based on the slope reliability and optimization principle, we construct the high slope system design and excavation optimization model, regarding the total expectation cost as the objective function. In combination withthe practical engineering of Funing port in Yunnan province, we optimize the high slope located in the general berth land area, and obtain the relationships of safety factor,reliability and the design slope angle. Meanwhile, we propose the reasonable excavation model with different loss coefficients based on the expected cost. The optimization design theory of high slope based on the expected cost proposed may serve as a reference for the practical slope projects.