基于天然标高地形图的场地设计标高计算方法研究

Research on the Calculation Method of Site Design Elevation Based on Natural-elevation Topographic Map

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,从而将天然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、应用范围广,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。

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 made new basis to calculate the designed elevation on site. By creating hypotheses and calculation model on the natural-elevation topographic map and 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 the natural-elevation topographic map to calculate the designed elevation on site is not only simple and easy to understand for engineering technical personnel, but also has strong maneuverability and extensive application, is innovative method by linking theory with practice and provides new theoretical basis for the calculation of the designed elevation on site.