程亮 钟岩 刘继龙 赵延



摘 要:土方工程作为地基与基础工程中的重要施工环节,面对复杂的场地地形条件,如何高效、精确的进行土方工程量计算是亟待解决的问题。传统的土方量计算主要采用手工分区、分块后利用体积公式进行计算。对于复杂地形场地,手工计算工程量大,且后期修改困难。基于项目案例,介绍了运用Surfer进行不规则场地建模的方法和土方量计算的基本流程,对比分析了系统内置的各种建模方法,给出了系统内置插值方法的一般选用原则。根据数据集的差异化特点,从确立的数据分析目的出发,做到合理优选,灵活运用,并在此基础上得到精度可靠、符合实际的可视化模型。与传统计算程序HTCAD的土方量计算结果作了对比验证,为后期基坑工程土方工程量的计算分析提供方法参考。
关键词:基坑;地表建模;插值方法;土方量计算
Abstract: Earthwork is an important process in subsoil and foundation projects. Under complex conditions, it is an urgent task to efficiently and accurately calculate the volume of earthwork. Traditional earthwork calculation mainly adopts manual partitioning and calculation with volume formula after partitioning. For sites with complex surface, manual calculation requires a large amount of work and is difficult to modify. This paper introduces Surfer-based irregular site modeling and the basic process of volume calculation in earthwork, compares the various modeling methods, and presents the general selection principle of system built-in interpolation method. According to the differentiated characteristics of the data set and the established data analysis purpose, a reliable and realistic visualization model can be obtained through reasonable optimization and flexible application. Comparison is also conducted with the calculation results of the traditional calculation program HTCAD. The paper provides a reference for further earthwork calculation and analysis.
Keywords: excavation engineering; site surface modeling methods; earthwork volume calculation
土方工程作为地基与基础工程中的重要施工环节,需要对不同项目类型、不同场地要求、不同现状条件进行针对性的方案设计及施工组织。其中基于现场地形地貌的土方工程规划、土方工程量估算、成型后的土方工程量核算,都是重要的基礎性工作,尤其是面对复杂的场地地形条件,如何高效、精确的进行土方工程量计算是亟待解决的问题。
目前,传统的土方量计算主要采用手工分区、分块后利用体积公式进行计算,对于规则场地比较容易得出精确计算结果,但对于复杂场地地貌,适应性较差,且对于复杂地形条件场地,手工分块工程量大,修改困难(邱枫,2017)。……