For the Yellow River dikes which are reinforced by desilting

the longitudinal cracks appeared in the standardized dikes in Henan and Shandong provinces in Lower Yellow River; it would effect quality and schedule of project badly. Through in-situ search

indoor experiments and theoretical studies such as saturated-unsaturated seepage-stress coupling

soak deformation

the cracking causes are analyzed; and relevant methods of prevention and curing are carried out. The results show that the construction in high speed is the basic cause of cracks of dikes; and soak deformation of dike

bad drainage of desilting section

stacking load at the tip of dike

impact of vehicle lead to form and develop of cracks. Therefore

the cracks of dikes can be prevented by controlling construction speed of desilting

draining quickly at desilting section

avoiding to stacking load at the tip of dike and so on. Moreover

cracks can be settled with core grouting

cutting and backfilling and so on.