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白蚁危害水利工程堤坝越来越引起重视,有效地防治白蚁已成为水利管理中的重要问题。目前防治白蚁的方法有多种,这里说一种毒网帷幕法防治白蚁。在土坝顶沿中心线每隔一米向下钻一斜孔,保持钻孔都在堤坝的中心面上,两组向相的斜孔都呈30°～45°的倾角,使两组钻孔构成网状。孔深为自坝顶至浸润线以上1.5米处。操作工具可用直径20毫米或25.4毫米的斜向锥孔机;若坝顶距浸润线高差小于3米。可用同样直径的钢钎人工打孔。然后把事先配好的药物装入孔中。为了速效防治,药物可为水剂,以氯丹、灭蚁灵等配制成,按每米坝长用
Termite damage water conservancy dam project more and more attention, the effective control of termites has become an important issue in water management. Currently there are many ways to control termites, here to say a poison net curtain method to control termites. At the top of the earth dam, a slant hole is drilled down every 1 meter along the centerline to keep the drilled holes at the center of the dam. Both slant holes of the two groups are inclined at an angle of 30 ° -45 °, Holes form a mesh. The depth of the hole is 1.5 meters above the top of the dam to the saturation line. Operating tools available diameter 20 mm or 25.4 mm oblique taper machine; if the crest from the infiltration line height difference of less than 3 meters. Available with the same diameter drill artificial drilling. Then pre-allocated drugs into the hole. In order to quick-effect prevention and treatment, the drug can be water agent, chlordane, mirex and other formulated,