论文部分内容阅读
长江中下游平原地区,河道弯曲,宽窄不一。凹岸或窄段,由于坐弯迎溜或深泓逼岸,受水流急刷地淘刷,形成陡岸;每于汛后水位降落,岸坡失去水压力的平衡,常常发生严重的崩坍,使大片土地流失,工矿企业、港埠码头等建筑物,遭到坍岸的感胁,因此必须积极采取护岸措施。在长江实施有计划的治导以前,其方法以平行护岸为宜,即在江岸上做复盖的保妒层,不改变河道原有形势,维持岸线平顺,以抵御洪水的冲刷,而达到防止崩坍的继续发展。长江沿岸,以往多采用抛石护岸,如荆江大堤连年抛石防护,巩固了堤岸;武汉市结合企业基建,进行了局部抛石护岸的措施;浦口、
The middle and lower reaches of the Yangtze River Plain, the river bend, varying in width. Concave or narrow section, due to sit tight Ying Ying or Shenzhen-Hong shore forced by the flash-brush scouring, the formation of steep shore; every flood level after the flood, the slope lost water pressure balance, often serious collapse, So that the loss of large areas of land, industrial and mining enterprises, port terminals and other buildings are threatened by bank collapse, and therefore must take active measures to shore up. Before the implementation of the planned dominance of the Yangtze River, the method of parallel revetment is appropriate, that is to say, the cover of the envy layer on the river bank does not change the original situation of the river and maintains a smooth coastline so as to withstand flood erosion and achieve To prevent the collapse of the continued development. The coast of the Yangtze River, in the past often use riprap revetment, such as successive years of riprap protection of the Jingjiang levee, consolidate the embankment; Wuhan City, combined with enterprise infrastructure, conducted a partial riprap revetment measures; Pukou,