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应用土工织物处理渠道滑坡,是利用土工织物的过滤透水性,将渠坡土中的侧向渗流,通过土工织物排入渠道中,从而达到固结边坡土体、增加边坡稳定之目的。昌黎县引滦灌区1978年动工,1984年竣工,总投资800万元。设计过水流量9.5m~2/s,灌溉面积6万多亩。该灌区二分干渠在桩号1+420～1+900范围属控方渠段,设计流量2m~3/s,渠道两侧均是水稻田。地质结构表层1m厚砂壤土,孔隙率为0.4～0.5,具有一定的湿陷性。渠底粉细砂层,渗透系数为
Application of geotextile treatment of landslides is the use of geotextile filtration of water permeability, the lateral flow of slope slope soil through geotextiles into the channel, so as to consolidate the slope of the soil, increasing the stability of the purpose of the slope. Changli County, the Luan River irrigation started in 1978, completed in 1984, a total investment of 8000000 yuan. Designed flow of 9.5m ~ 2 / s, irrigated area of 60,000 acres. The second branch of the irrigation area is under the control of the canal in the range of 1 +420 ~ 1 + 900 and the design flow is 2m ~ 3 / s. Both sides of the canal are paddy fields. Geological structure of the surface layer of 1m thick sandy loam, the porosity of 0.4 to 0.5, with some collapsibility. Ditch fine sand layer, the permeability coefficient