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钨矿大队水文工作,由于部分钻孔竣工后,不能立即起管,须留作进行长期水文观测,而占用了很多管材.该分队地形复杂,每个钻孔都必须下井壁管.为解决材料缺乏困难,经研究用竹管来代替铜管使用效果良好.其方法是:(1)选择粗细相应,生长2至3年的直毛竹;(2)把过粗和太细的两端锯去(以能顺利通过井壁管,内径能通过测钟为限)井将里边的节打掉,外边弄光;(3)在已锯好的竹管两端各削成锥形和喇叭状并挖深为3至5MM,宽为8至10MM的小沟;(4)用16号铁丝将两根紧紧地牢固的连结起来,其连结方法如图2所示;
Tungsten ore brigade hydrological work, due to the completion of some drilling, can not immediately start the pipe, should be reserved for long-term hydrological observations, and take up a lot of pipe. The team terrain is complex, each hole must be down the wall tube. To solve the material In the absence of difficulties, the use of bamboo tubes instead of copper tubes has been found to be effective. The methods are: (1) selecting the straight bamboo that grows for 2 to 3 years depending on the thickness; (2) sawing both ends that are too thick and too thin (In order to smoothly pass through the wall of the well, the inner diameter can be limited by the measuring bell) The well will be knocked out and the outer side will be lighted; (3) Tapers and horns are cut at both ends of the sawn bamboo tube. Digging depth of 3 to 5MM, a width of 8 to 10MM of the ditch; (4) with 16 iron wire to firmly connect two firmly together, the connection method shown in Figure 2;