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一、概述 淠史杭灌区瓦东干渠七里杠滑坡由相距80m的1~#、2~＃两处滑坡组成。1~#、2~＃滑坡的滑体顺渠向长度分别为135m和180m,垂直水流方向的宽度分别为60m和80m,滑坎(壁)分别为1.5m和3m,主滑舌伸进渠底最大长度分别为6m和10m(该处设计渠底宽度为19m)。安徽省水利厅同意采用钢筋混凝土抗滑桩结构支挡方案,并辅以削坡,明、暗排水等措施进行治理。该项工程自1998年2月10日开工,1999年6月底完工。治理范围的总长度为350m。采用井柱抗滑桩构架,桩的中心距为6.0m,抗滑桩为φ2.0m井柱,上端用顺坡撑梁支撑,下端埋入滑床面以下1.5m深度以维持稳定。 工程建设期间,成立了七里杠滑坡
I. Overview 淠 Shihang Irrigation District Wadong trunk canal Qili bar landslide from the 80m apart 1 ~ #, 2 ~ # two landslides. 1 ~ #, 2 ~ # landslide slip along the canal length of 135m and 180m, the width of the vertical direction of flow were 60m and 80m, slip-wall (wall) were 1.5m and 3m, the main tongue extending into the channel The maximum length at the base is 6m and 10m, respectively, where the width of the canal bottom is 19m. Anhui Provincial Department of Water Resources agreed to adopt reinforced concrete anti-slide pile structure support program, supplemented by slope, light and dark drainage and other measures for governance. The project started on February 10, 1998 and was completed by the end of June 1999. The total length of governance is 350m. The center column spacing of the pile is 6.0m and that of the anti-slide pile is φ2.0m. The upper end of the anti-slide pile is supported by a straight-slope beam, and the lower end is buried at a depth of 1.5m below the slide bed surface to maintain stability. During the construction of the project, Qilili landslide was established