杭州市下城区主要城市河道大多位于上塘河水系末端,水下植物长势不足,水体自净能力不全,河道水质较差;且河道普遍弯曲、宽度较窄,多处桥梁下过水情况差、阻水点难以清理,浮泥沉积快,无法大面积使用传统的挖泥船清淤技术,淤泥外运也越来越难;而且,淤泥堆积场地建设多以侵占既有绿地为代价,给城市土地资源带来新一轮压力。为此,探索一条既能高效清理河道淤泥,又能减少资源浪费的新道路,是现实与未来的共同需求。 Most of the major urban rivers in Xiacheng District of Hangzhou City are located at the end of the Upper Tangtang River system. Underwater plants are under-developed, and the self-purification capacity of the water body is poor. The water quality of the river channel is poor. The river channels are generally curved with narrow widths, Difficult to clean up the point, rapid deposition of floating mud, large area can not use the traditional dredging dredging technology, silt outbound is also more and more difficult; Moreover, the construction of silt accumulation site to occupy more than the existing green space at the expense of urban land resources Bring a new round of pressure. Therefore, exploring a new road that can effectively clean the silt of the river and reduce the waste of resources is a common demand between the reality and the future.