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在血吸虫病流行区,钉螺随涵闸引水由外滩向堤内扩散,国内已有不少调查报告;涵闸引水防止钉螺扩散工程的建造,国内也有报道.但运用水力学、泥沙运动力学和生物学相结合的方法,建立相应的防止钉螺扩散工程模式方面,目前国内外尚未见报道.现将“沉螺池十两层半幅拦网”及“中层取水”防螺两种工程模式简介如下.1“沉螺池十两层半幅拦网”防螺工程1.1设计原理 根据钉螺、螺卵在水
In the endemic area of schistosomiasis, snail along with culvert flood diverted from the Bund to the embankment, there have been many domestic survey reports; culvert flood diversion to prevent the construction of snail spread, has also been reported in China, but the use of hydraulics, sediment transport mechanics and biology Combined with the establishment of the corresponding mode of prevention of snail spread engineering, at home and abroad have not been reported.Currently, “Shen pool of two and a half block block” and “mid-level water” two kinds of non-spiral project profile is as follows.1 Spirodela two and a half block block "anti-spiral engineering 1.1 Design Principles According to snail, snail eggs in the water