坡地场地竖向设计优化

发布时间：2018-01-05 18:22

本文关键词：坡地场地竖向设计优化　出处：《西安建筑科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：竖向设计是总图设计与工业运输的一个重要组成部分，竖向设计方案的合理与否不但直接关系到生产工艺流程及运输联系的合理性，也关系到整个场地的安全稳定性、土建投资和工程造价[1]。尤其在坡地场地上，建、构筑物之间运输联系比较复杂，，各种排水构筑物和支挡工程量显著增加，因此，亟待解决在坡地场地上竖向设计的优化问题，从而处理好场地平面布置和竖向设计的关系。本文在对国内外研究现状分析的基础上，从对竖向设计基本理论入手，总结竖向设计优化中存在的主要问题，从平土标高优化、土方量优化及竖向设计方案评价等方面进行研究。 1）平土标高的优化平土标高是竖向设计的基础和关键，本文首先对传统的平土标高计算方法进行分析比较，在坡地场地，由于地形起伏较大，很容易出现大填大挖的情况，而传统的计算方法不能避免此问题。因此，本文提出应用改进最小二乘法对平土标高进行优化，使得计算的平土标高不但能满足最高洪水位、地下水位、场地内外运输的良好衔接，也可使得场地土方量最小且填挖方量平衡，并且避免坡地场地的大填大挖。 2）土方工程量的优化土方工程量计算精度对于控制土方工程造价具有决定性作用，论文通过对土方量计算方法进行总结，探讨了在特殊情况下方格网法的计算土方量公式；在分析土方量精度影响因素的基础上，研究土方量计算精度与场地坡度、场地面积的关系，基于MATLAB平台，确定在一定的精度下，场地面积与自然坡度对于方格边长取值的影响，并确定方格边长的取值范围，并得到其关系式。 3）竖向设计方案的评价竖向设计的合理性关系到整个场地的使用功能、安全、经济和景观等方面，因此对竖向设计方案的评价与比选是竖向设计的必要环节。本文根据对竖向设计方案影响因素的分析，将定性和定量化指标相结合，建立竖向设计方案评价指标体系，应用灰关联熵-复合物元评价模型对竖向设计方案进行分析评价，并应用实例进行验证。通过论文对竖向设计中平土标高的优化，土方量的优化及竖向设计方案的评价的论述及实例应用结果的合理性分析，为坡地场地的竖向设计优化理论及方法提供一定的借鉴，对实际工程应用具有一定的参考价值。
[Abstract]:The vertical design is an important part of the design and industrial transportation of the general picture . The rationality of the vertical design is not only directly related to the rationality of the production process flow and transportation connection , but also the safety stability , the civil investment and the engineering cost of the whole site . Especially in the slope field , the transportation connection between buildings and structures is complex , the quantities of various drainage structures and supporting blocks are obviously increased , so the optimization problem of vertical design on the slope site is urgently solved , so that the relationship between the floor layout and the vertical design of the site is processed . Based on the analysis of the present situation at home and abroad , this paper starts with the basic theory of vertical design , summarizes the main problems existing in the optimization of vertical design , and studies the optimization of the level , the optimization of earthwork volume and the evaluation of vertical design scheme . 1 ) Optimization of leveling elevation The level of flat earth is the foundation and key of vertical design . In this paper , the traditional method of leveling earth elevation is analyzed and compared , and the traditional calculation method can not avoid this problem . Therefore , this paper puts forward an improved least square method to optimize the level of flat soil , so that the calculated level of flat earth can not only meet the highest flood level , the groundwater level , the transportation of the inside and outside of the site , but also the earthwork volume of the site can be minimized and the excavation amount is balanced , and the large filling and excavation of the sloping field can be avoided . 2 ) Optimization of earthwork volume The calculation precision of earthwork volume is decisive for controlling the cost of earthwork . The paper summarizes the calculation method of earthwork , and discusses the relation between calculation precision of earth quantity and site slope and field area . Based on MATLAB platform , it is determined that under certain precision , the influence of field area and natural slope on the value of square boundary length is determined , and its relation is obtained . 3 ) Evaluation of vertical design scheme The rationality of vertical design is related to the use function , safety , economy and landscape of the whole site , so the evaluation and comparison of vertical design scheme are necessary links of vertical design . Based on the analysis of influencing factors of vertical design scheme , qualitative and quantitative indexes are combined to establish the evaluation index system of vertical design scheme , and the vertical design scheme is analyzed and evaluated by using grey relation entropy - complex meta - evaluation model , and the examples are verified . Through the discussion of the optimization of the level of the horizontal soil in the vertical design , the optimization of the earthwork volume and the evaluation of the vertical design scheme and the rationality analysis of the application result of the example , this paper provides some reference for the optimization theory and method of vertical design optimization of the slope site , and has certain reference value for practical engineering application .

【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU751

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