The improvement of technology decreases human labor time and increases human leisure time , leisure takes important part in human life , leisure economy booms in big cities , therefore , developing leisure industry becomes a trend of regulating industrial structure in a region or a city 技术进步缩短了人们的劳动时间,用于闲暇的时间资源自然不断增多,休闲也就在人类生活中越来越重要。特别是大城市的休闲经济发展迅速,休闲产业成为一个区域和城市产业结构软化的方向,休闲经济和休闲产业也就被学术界超前关注起来。
The strain softening of dam body and foundation is the necessary condition for dam instability . according to observation data of dam cracks , a gray cusp catastrophe model is established to judge the stability of the crack . according to the slope observation data of a certain hydropower plant , a nonlinear dynamic model is developed by means of reversion and the lyapunov exponent spectrum , and the lyapunov information dimension are calculated for judgement of the stability of the slope （ 5 ）基于变分原理，研究建立了能量形式的失稳准则，并说明坝体、岩基的材料具有应变软化的性质，是大坝失稳的必要条件；并利用大坝的裂缝实测资料，建立了相应的灰色尖点突变模型，由此判断裂缝的稳定性；根据某水电站库区滑坡体的变形实测资料，反演其非线性动力学模型，进而计算lyapunov指数谱、 lyapunov信息维来判定边坡的稳定性及稳定程度。
In order to direct the water to the forebav of the pump station from the original canal , a channel long 135 m is designed . it crosses through the terrain top with a depth of more than 50 m . soil of the channel slopes is a strongly - weathered silty and sandy mudstone with many well - developed reticular cracks and takes the structural surfaces almost same as the channel slopes 东深供水工程金湖泵站位于塘厦镇东面，属低山、残丘地貌，地面高程22 60m ；泵站前池进水渠横切山脊，连接原东深供水河，设计开挖1条长135m的进水渠，坡高50多米，边坡土质为强风化的粉砂质泥岩，网状裂隙发育，结构面基本与坡面重合；坡体土质中含有较多的粘土矿物，具有遇水软化的特性。
And as the number of ecap passes increases , the rate at which softening occurs in the transition zone increases and the onset temperature of recrystallization drops . moreover , the grain size after static recrystallization is more finer , so grain size can be further refined by controlling the temperature and time of recrystallization Ecap道次越多，再结晶的温度越低，再结晶软化的速度越快，而且再结晶后的晶粒尺寸更为细小，因此可以通过控制再结晶的温度和时间进一步细化晶粒。
