CAJ | 학술논문

西部地区河床覆盖层深厚且成因杂、结构散、颗粒粗，勘探取样与原位测试是水电工程地质勘察中常遇的技术难题。利用麦夸特法与通用全局优化法相结合的优化算法，基于1stOpt数学优化分析软件，对现行规范中重型、超重型动力触探锤击数修正系数进行了拟合研究。给出了双因子(杆长、实测锤击数)动力触探锤击数修正系数拟合函数与外延修正系数，并应用于金沙江乌东德水电站。研究成果不仅扩展了动力触探应用范围，而且为测试数据批量化计算与查表内插处理提供了便利，可供河床深厚覆盖层地区水电工程勘察参考使用。
서부지구하상복개층심후차성인잡、결구산、과립조，감탐취양여원위측시시수전공정지질감찰중상우적기술난제。이용맥과특법여통용전국우화법상결합적우화산법，기우1stOpt수학우화분석연건，대현행규범중중형、초중형동력촉탐추격수수정계수진행료의합연구。급출료쌍인자(간장、실측추격수)동력촉탐추격수수정계수의합함수여외연수정계수，병응용우금사강오동덕수전참。연구성과불부확전료동력촉탐응용범위，이차위측시수거비양화계산여사표내삽처리제공료편리，가공하상심후복개층지구수전공정감찰삼고사용。
Exploratory sampling and in-situ test are the technical challenges frequently encountered in the geotechnical inves-tigation of hydropower projects in west China where the riverbed overburden is thick with complex genesis, loose structure and coarse particles. Based on a optimization algorithm that combines Levenberg-Marquardt algorithm and general global optimiza-tion, this paper studies the fitting of correction factors of heavy and extra heavy dynamic penetration in executing standard by a optimization software of First Optimization (1stOpt), and the correction factors fitting function as well as the extended correction coefficients of two-factor ( rod length and actual count ) of dynamic penetration are calculated, which was applied to Wudongde Hydropower Station on Jinsha River. The study expanded the application range of dynamic penetration in current standard and fa-cilitated the mass calculation and interpolation of measured data.