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堤防工程中为了引水灌溉、城市供水、分洪等目的,修建了许多涵闸,如果穿堤涵闸土石结合部由于各种原因产生渗漏,则严重影响堤防安全。涵闸渗漏常规抢护方法是闸前修筑围堰、闸后进行养水和反滤。其中快速修建闸前围堰,减少渗流量,降低渗透压力,是根除渗漏险情的关键。土工包是近年来随着土工合成材料的发展应运而生的防汛抢险新材料,其材质为高强机织土工反滤布,内填防渗材料,采用工厂加工和现场加工相结合的制作方式,缝合强度要求不低于土工反滤布强度
In the embankment project, many culverts and sluices have been constructed for the purpose of water diversion and irrigation, urban water supply and flood diversion. If the joints of earth and stone on the culverts and sluices occur leakage due to various reasons, the embankment safety will be seriously affected. Culvert leakage conventional snatching method is to build cofferdam before the gate, the gate after water conservation and filtration. Among them, the rapid construction of the cofferdams before the floodgate reduces the seepage volume and reduces the seepage pressure, which is the key to eradicating the danger of seepage. Geotextile package in recent years with the development of geosynthetics came into being new materials for flood control and rescue, the material is high strength woven geotechnical filter cloth, filled with impermeable material, the use of factory processing and on-site processing of a combination of production methods, Stitching strength requirements of not less than the strength of geotextile filter cloth