海河水系下游五闸与地面沉降

海河水系下游五闸是海河下游的重要防洪控制工程,由于地面沉降致使闸体沉降,造成闸体的水位和过水能力均有变化,影响闸体的防洪和抗灾能力。介绍了海河水系下游五闸的基本情况,海河水系下游五闸的地面沉降原因及危害性,海河水系下游五闸沉降观测及有关事项,海河下游五闸沉降值及对沉降值的分析,最后提出了做好海河水系下游五闸沉降观测的几点建议。

Five floodgates of Haihe river system of lower reaches and subside to survey

Five floodgates of Haihe river of lower reaches are the lower reaches of Haihe river important prevent flood to control project,since ground-subside causes floodgate body subsides,the water ability and water level of floodgate body have change,affect floodgate body prevent flood and fight calamity ability.This paper introduces the basic condition of five floodgates of Haihe river of lower reaches,elaborate its harm and the ground-subside reason of five floodgates of Haihe river of lower reaches,introduces the subsidence surving of five floodgates of Haihe river of lower reaches and relevant item,also summarize the subsidence value of 5 floodgates of Haihe river of lower reaches and for subsiding to worth analysis,final author mention the suggestion that makes the subside surving of five floodgates of Haihe river of lower reaches work well.