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在辽宁省康平县辽河兰家险工段,试用土工织物在护岸中做为滤布,用编织布排取代柴排、水下用布袋替代块石、水上用框架水泥土取代块石铁丝笼护岸,找出一套理想的施工工艺,进行可行性研究。试验表明,冰压力对护岸块石与框架水泥土均无影响;在多泥沙河流中,布的孔径稍大也不会造成被保护土的淘刷:在岸坡布排上,放置不同重量的石块和土枕,均末被冲动;在遇洪水时,水下边坡可能大于土和布的摩擦角,必须采用加筋措施;只要边载稳定并和布排联在一起,各布排也联成一体,中间荷载均匀抛放,基本能保证挑体稳定;护岸中,采用动水摩擦角较为安全。施工时,先将预制框架按要求放住护面上,然后将水泥土填塞夯实在框架内,表面抹光,并进行斧护,通过运用,效果良好。
In Liaohe Lanjiaxian section of Kangping County in Liaoning Province, the geotextile trial was used as a filter cloth in bank revetment, a row of wickerwork was replaced by braided cloth, a block of bagasse was replaced by a cloth bag under water, and a framed iron wire cage was replaced by water- Find a set of ideal construction techniques for feasibility studies. Experiments show that ice pressure has no effect on revetment blocks and frame cement soil. In multi-sediment rivers, the pore size of the cloth is slightly larger and does not cause scouring of the protected soil. On the bank slope, different weights Of rock and soil pillow, were impulsive; In case of floods, the underwater slope may be greater than the rubbing angle between soil and cloth, must be reinforced measures; as long as the side load stability and cloth together, the arrangements are also linked Into one, the middle of the uniform load load, the basic can ensure the body to pick a stable; revetment, the use of hydrodynamic friction angle is more secure. During the construction, the prefabricated frame shall be put on the protective surface as required, then the cement soil shall be stuffed into the frame by tamping, the surface shall be wiped, and the protection shall be carried out. Through the application, the effect is good.