Anti-seepage reinforcement technology of splitting grouting to improve the stability of dam has been an effective reinforcement method in the field of dam reinforcement.Based on cylindrical expansion considering large strain

the soil around splitting cavity was supposed to submit the extended SMP criterion.Through the theoretical calculation

the analysis solution of grouting pressure of splitting grouting was obtained.Furthermore

through parameter computing

the influence of internal friction angle and cohesion was presented on grouting pressure.It can be obtained that the influence of internal friction angle on grouting pressure was less obvious than that of cohesion strength.These results of the present theory were very valuable for the actual project.