CAJ | 학술논문

根据溢流面板堆石坝下游坝体内竖向土压力的有限元计算结果和数据,通过多元非线性回归分析,得到下游坝体内任意水平截面上竖向土压力分布的计算公式,并运用此公式推导出作用于溢流面板堆石坝泄槽底板水平锚拉筋上的土压力合力,进而求得水平锚拉筋所提供的抗拔力。溢流面板堆石坝内的水平锚拉筋,随着长度的增加,其上的土压力和抗拔力均增加。当水平锚拉筋长度相同时,随埋置深度的增大,水平锚拉筋上的土压力合力和抗拔力的增幅较小。
근거일류면판퇴석패하유패체내수향토압력적유한원계산결과화수거,통과다원비선성회귀분석,득도하유패체내임의수평절면상수향토압력분포적계산공식,병운용차공식추도출작용우일류면판퇴석패설조저판수평묘랍근상적토압력합력,진이구득수평묘랍근소제공적항발력。일류면판퇴석패내적수평묘랍근,수착장도적증가,기상적토압력화항발력균증가。당수평묘랍근장도상동시,수매치심도적증대,수평묘랍근상적토압력합력화항발력적증폭교소。
On the basis of the consequence and data from finite element software and through multivariate nonlinear regression analysis,the calculation formula of vertical soil pressure distribution at any level section in the dam catchment area of overflow concrete face rockfill dam(CFRD) is obtained,and then though making use of the fitting formula,the soil pressure's resultant force on level anchor reinforcement is ascertained.Finally the uplift resistance size and feature of the level anchor reinforcement are worked out.Along with the increase of length,the soil pressure and uplift resistance of the level anchor reinforcement inside the overflow CFRD are increased.When the level anchor reinforcement is same in length,the soil pressure force and uplift resistance of the level anchor reinforcement are increased in small along with the increase of embedded depth.