基于模糊概率法的土石方工程爆破开挖方案优选

Fuzzy probability optimization of engineering blasting scheme in earth-rock excavation

土石方工程开挖方案的好坏受较多影响因子的制约,筛选并构建影响因子论域,优选出合适的开挖方案对于工程的顺利开展具有重要意义。针对白鹤滩迁建集镇土石方工程开挖量大、开挖条件复杂、工期短等特点,考虑影响因子权重的复杂性、不确定性及模糊性等特性,结合模糊概率基本原理及层次分析法(AHP)对4种土石方开挖方法进行评价,优选工程爆破方法,为此设计4种工程爆破方案进行评价,优选综合爆破方案进行后续土石方工程的开挖施工。研究使土石方工程爆破开挖方案的优选更具科学性及合理性,可为类似土石方工程爆破开挖方案的优选及工程应用提供参考。

The quality of excavation scheme of earthwork is restricted by many influence factors.It is of great significance to select and construct the theory domain of influence factors and select the appropriate excavation scheme for the smooth development of the project.The Baihetan relocation town conditions for large amount volume of earthwork excavated,complicated excavation conditions,characteristics of short time limit,the complexity,uncertainty and fuzziness of influence factor weights are considered,based on fuzzy probability principle and analytic Hierarchy process(AHP),four excavation methods of earth and rock were evaluated,blasting method is priority selected,four kinds of blasting schemes are designed for evaluation,The comprehensive blasting scheme is priority selected for excavation construction of earthwork.The study makes the optimization of blasting excavation scheme of earthwork more scientific and rational,it can provide reference for the optimization of blasting excavation scheme and engineering application of similar earthwork.