Nonlinear Static And Dynamic Characteristics Study On Liner Structure In Plunge Pool

Based on the research result of impact jet flow, this paper analyzes the diffusion laws ofsubmersed slant jet flow, and introduces the variable characters of physical parameters inevery sub-region of jet flow in plunge pool.The stability of flat slab is largely depended on its gravity and anchor bars;otherwise,the stability of the reverse-arch-shape slab is depended on the abutment of arch supports andanchor. So it is significant to use reasonable simulation method of anchor to the solution ofslab problems. This paper performs the research on the operating principle of anchor, andcalculates the actual project problem using several finite element models.The contact module in the ADINA program is used to treat the joint problems of slab andslab, slab and foundation rock, arch abutment and arch support. The pushing force at archabutment, anchoring force, displacement of reverse-arch slab and the stresses of theconstruction joint are obtained by the use of calculation of non-linear static and dynamic of"random arch" and "integral arch". The result indicates that it is feasible to treat the joint ofslab and foundation rock using the contact theory to solve the problem of slabs.The slab vibration caused by flood discharge from high-arch dam is the typicalfluid-solid interaction problem. The response of slabs under the action of dynamic load isstudied. The comparison with data of model experiment and prototype observation is done inthis paper.The key-slot is installed in the slab to increase the integral and local stability of slabs.Three types of key-slot are designed and the contrastive study on the displacement and stressare done in this paper. The reasonable key-slot form witch can increase the self-locking actionof slabs is obtained. There is no large tensile stress in the key-slot gaps. Besides, the curvatureof slabs is investigated in this paper.