在雨雪冰冻及车轮荷载的双重作用下,冬春季节油路面很容易出现坑槽。不少地方的养路工为了保证车辆的安全畅通,只好先用泥土或砂石料将坑槽填平,待夏季气温升高后,再挖起泥土,重新补强铺油层。其实,采用这种只解燃眉之急的办法来修补坑槽,一是劳民伤财,冬春季填下的砂石料压实后来年又得挖起来重新补强,这一填一挖的工时就这样白白浪费了。二是填进盒子的泥土或砂石料伸缩性太大,车轮通过的时候产生的“弯沉值”所带来的剧烈弹性会导致一连串的重复坑槽。虽说这种处治办法极不理想,可在气温较低的冬春季节,许多道工也找不到更好的处治办法。笔者通过多年来的反复实践,探索出了两种适合高寒地区在冬春季节修补油路坑槽的办法,其具体操作办法简略介绍如下: Under the double action of freezing snow and wheel load, the potholes are prone to appear in the winter and spring seasons. In many places, road maintenance workers have to first fill the pit with soil or sand and gravel until the temperature in summer has risen, and then dig up the earth and re-reinforce the oil shop. In fact, this solution is only urgent solution to repair pit, one is waste of money, in the winter and spring to fill the sand and gravel compaction in the coming year and then have to dig up again to reinforce, this fill a digging time was so wasted . Second, the soil or aggregate filled into the box is too flexible and the drastic elasticity caused by the “deflection value” generated by the passing of the wheel will result in a series of repeated pits. Although this treatment is extremely unsatisfactory, many minors can find no better treatment in the warmer winter and spring seasons. Through repeated practice over the years, I have explored two ways to repair potholes in the alpine region during the winter and spring seasons. The detailed operation methods are briefly described as follows: