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从跃进总干渠(下段)防渗改建工程的工程地质概况、地基土的渗透特性、渠线地下水位等实际情况出发,计算确定了渠道复合断面糙率、渠顶宽度等。根据横断面设计比较,最终确定本次跃进总干渠防渗改造工程渠道横断面采用梯形断面。
Based on the engineering geology overview of the seepage control and reconstruction project in the main channel of the Yuejin (lower section), the seepage characteristics of the foundation soil and the groundwater table of the canal, the roughness of the channel section and the width of the drainage channel were calculated and calculated. According to the cross-section design and comparison, finally determine the traversal of the general trunk canal seepage improvement project cross-section using trapezoidal cross-section.