
工程建设与设计
Derign For Phgen
基于天然标高地形图的场地设计标高计算方法研究 Research on theCalculationMethodof SiteDesign Elevation Basedon Natural-elevation
TopographicMap
宁甜甜
(上海洲海房地产开发有限公司曲阜分公司,山东曲阜273155)
NINGTian-tian
(The Branch Companyin Qufuofthe Zhouhai Real Estate Development Ltd.in Shanghai, Qufu 273155,China)
【摘要】通过对场地设计标高计算方法的调查,发现利用等高线地形图求解场地设计标高的方法在实际应用中存在一定局限性,从而将天热标高地形图作为场地设计标高计算的新依据,通过对天然标高地形图建立假设条件和计算模型,并利用土方量平衡的设计原则,推导出了无坡度场地、单向坡度场地和双向坡度场地的设计标高的计算公式。通过在实践工程中的应用,表明利用天然标高地形图求解场地设计标高的方法,不仅简单明了、便于工程技术人员理解,而且可操作性强、应用范图广,是理论联系实际的创新方法,为场地设计标高的计算工作提供了新的理论依据,
[Abstract ]Through investigation of the calculation method of the designed elevation on site, certain limitations were found in practice by using the contour-line topographic map to calculate the designed elevation on site, Therefore, the natural-elevation topographic map was madc newbasistocalculastethedesigned clevation on site.Bycreatinghypothesesandcalculationmodelonthenatural-elevationtopographicmapand using the principle of the equilibrium of earthwork volume, the calculation formulas of the designed elevation of the sites of no slope, single-direction slope and double-direction slope were deduced. The applications in practical projects prove that the method by using thc natural-elevation topographic map to calculate the designed elevation on site is not onlysimple snd easyto understand for engineeringtechnical personnel,but alsobas strongmsneuverability and extensiveapplication, is innovativemethod bylinkingtheory withpractice aad provides new
theoretical basis forthe calculation ofthe designed elevation on site【关键词】地形图;天然标高;土方量平衡;设计标高
[Key words ]topographic map; natural elevation; equilibriumofearthwork volume; designed elevation
【中图分类号】TU751*.4 1引言
【文献标志码】A
【文章编号】1007-9467(2013)01-0170-03
高依据地形图进行设计。如果地形图中有等高线,则可首先对
在土木工程施工中,首先进行的是场地平整工作,而场地平整需要确定场地设计标高。正确选择设计标高,对减少土方量和加速施工进度是十分重要的!。一般情况下,场地设计标【作者篇介】宁甜甜(1981~),男,山东邹城人,工程师,从事房地产开发研究,(电子邮箱)vanhalan@163.com。
170 万方数据
场地划分方格网,然后根据等高线确定每个方格四个角点的天然标高,然后再进行场地设计标高的计算。但在实际中,有些工程的地形图中没有等高线,方格四个角点的天然标高需要实地测量,会增加操作难度和计算误差。因此,本文根据实际工程,研究当地形图中没有等高线而是只有天然标高点时场地设计标高的计算方法,为场地平整及土方计算工作提供