浑河沈阳市郊段长28.5公里,是沈阳市防洪的重点。结合河道疏通规划(宽600米,深4米),在河道主槽内设置了62个采砂场。为了适应市内夜间运输建筑材料的规定,砂石料生产昼夜进行。从1982年6月至1985年末,共生产砂石800万立方米,既疏通了河道,支援了城市基本建设,降低了建筑材料造价,又增加了企业和河道管理部门收入,增加了地下水补给,收到了多方面的经济效益和社会效益。为了能在汛期坚持砂石生产,必须做好水情预报和通讯联系。过去,由于这方面工作做得不够,曾连续几年遭受损失。如1983年汛期,浑河最大洪峰流量仅656立方米/秒,但由于缺少通讯设备,加上部分砂石场管理人员思想麻痹,撤退较晚,结果冲走油桶70多个,筛子200多个,淹挖掘机3台,汽车3辆,上游砂石场为抢捞筛子还死了一名工人,损失5万余元。沉痛的教训引起了人们对通讯的重视。1985年河道管 Hunhe Shenyang suburban section of 28.5 km long, is the focus of flood control in Shenyang City. Combined with the river dredging plan (600 meters wide and 4 meters deep), 62 sand mining sites were set up in the main channel of the river. In order to meet the provisions of the night transport of building materials in the city, sand and gravel production carried out day and night. From June 1982 to the end of 1985, a total of 8 million cubic meters of sand and gravel were produced, which not only dredged the river channels, supported urban infrastructure, reduced the cost of construction materials, increased the revenue of enterprises and river channel management departments, increased the supply of groundwater, Received a wide range of economic and social benefits. In order to adhere to the production of sand and gravel in flood season, we must do a good job in forecasting and communicating water regimes. In the past, as a result of inadequate work in this area, it suffered losses for several years in a row. For example, in 1983 flood season, the maximum flood peak flow of Hunhe River was only 656 cubic meters / second. However, due to the lack of communication facilities and the partial paralysis of sandstone field managers, the retreat was delayed. As a result, more than 70 oil drums and more than 200 sieves 3, flooding excavator 3, 3 cars, the upper reaches of the gravel field to grab a sieve still dead a worker, loss of more than 50,000 yuan. Painful lessons have drawn people’s attention to communications. River channel in 1985