绞吸式清淤与气力泵式清淤效果比较研究  

Comparative study on the desilting effects of cutter suction and pneumatic pump

作　　者：孙景昱 刘建刚 恽文荣 高嘉蔚 SUN Jingyu;LIU Jiangang;YUN Wenrong;GAO Jiawei(Changzhou Wujin District Water Conservancy Comprehensive Management Service Center,Changzhou 213100,China;Changzhou Wujin District Water Resources Bureau,Changzhou 213100,China;Water Resources Service Center of Jiangsu Province,Nanjing 210029,China)

机构地区：[1]常州市武进区水利综合管理服务中心,江苏常州213100 [2]常州市武进区水利局,江苏常州213100 [3]江苏省水资源服务中心,江苏南京210029

出　　处：《江苏水利》2024年第12期7-12,共6页Jiangsu Water Resources

摘　　要：以太湖竺山湖清淤工程中的气力泵清淤与绞吸式清淤施工为对象,分析清淤工程中2种船型对周围水体的悬浮物、总磷、总氮以及氨氮等指标的影响,比较分析了绞吸式与气力泵清淤船清淤中余水污染物以及含水率质量浓度变化趋势,研究了2种船型清淤后对底泥界面层理结构的影响。结果表明,气力泵清淤船扰动距离、扰动强度均小于绞吸式清淤船,气力泵式清淤中淤泥含固率较高,余水量小,对底泥界面层位结构影响小。Taking the pneumatic pump dredging and cutter suction dredging construction in the dredging project of Zhushan Lake in the Taihu Lake as the object,the influence of two ship types in the dredging project on the suspended solids,total phosphorus,total nitrogen,ammonia nitrogen and other indicators of the surrounding water body was analyzed,and the change trend of residual water pollutants and water content mass concentration in the dredging of cutter suction and pneumatic pump dredgers was compared and analyzed,and the influence of two types of dredging ships on the bedding structure of the sediment interface layer after dredging was studied.The results showed that the disturbance distance and intensity of the pneumatic pump dredging ship were smaller than those of the cutter suction dredging ship.The solid content of the sludge in the pneumatic pump dredging was higher,the residual water was smaller,and the impact on the interface layer structure of the sediment was smaller.

关 键 词：绞吸式 气力泵式 底泥清淤 悬浮物质量浓度 水质 

分 类 号：TV851[水利工程—水利水电工程]