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齐齐哈尔～安达地区,气候寒冷,地下冻层深,温差很大,地下水位高。这不但要解决电缆地下无人站的防水问题,同时还要解决保温和抗冻问题。 从过去施工的一些无人站看,虽然采取了一些措施,都没能很好地解决上述问题,直接影响了通信畅通。 1985年在安达～让胡路间,用“ZF—1”早强防水剂为混凝土外加剂,做了三个钢筋混凝土结构的无人增音站,经过将近三年的考验,没发现漏水,而且内部温度在1℃～17℃范围内变化,完全符合无人机温度标准。
In the Qiqihar-Anda area, the climate is cold, the deep underground layers are frozen, the temperature difference is large, and the groundwater level is high. This will not only solve the problem of waterproofing of unmanned underground stations, but also solve the problem of insulation and antifreeze. From some unmanned stations constructed in the past, although some measures were taken, none of these problems could be solved well, which directly affected the smooth flow of communications. In 1985, between Anda and Ranhu Road, a “ZF-1” early-strength water repellent was used as a concrete admixture to make three reinforced concrete structures without sound reinforcement stations. After nearly three years of testing, no leakage was found. And the internal temperature changes in the range of 1 °C ~ 17 °C, fully in line with the drone temperature standard.