Various previous methods are summarized and classified into two categories : semi - math methods and pure - math methods . based on discussion of the common and difference among these methods , multiple - exponential model is presented . using the new method to predict settlement of some sections in su - jia - hang expressway , the result indicates that the new method can accurately predict settlement and has practical value 总结以往荷载稳定后的沉降预测方法,并将其划分为半数学方法与纯数学方法,寻找各种预测方法相互之间的联系与差别,提出复合指数曲线预测方法,并运用新方法对苏嘉杭高速公路重点段落的部分断面进行沉降预测,验证了新方法的预测功能和实用价值。
Having integrated with the project " " research on operation and application of the equipment plz45 - 155mm self - propelled gun - howitzer " , the exponential model , wseiac model , direct assessment model , authoritative comprehensive assessment model and fuzzy comprehensive assessment model have been established in this essay . having combined with the technical and tactical performance of plz45 ? 155mm self - propelled gun - howitzer and on the basis of the qualitative analysis of its combat effectiveness , the quantitative research has been conducted , which results in the conclusion that the combat effectiveness of plz45 ? 55mm self - propelled gun howitzer can be improved three times more than that of the conventional pieces 本论文结合“ plz45 ? 155毫米自行加榴炮系统作战使用研究”的在研项目,建立了指数法模型、 wseiac模型、直接评分法模型、加权综合评定模型和模糊综合评定法模型,结合所研究的自行加榴炮系统的技、战术性能,对其作战效能在定性分析的基础上,进行了定量研究,从而得出plz45 ? 155系统较传统火炮的作战效能提高了三倍以上的结论。