溢流面板堆石坝泄槽底板水平锚拉筋的抗拔力计算  

Uplift Resistance Calculation for Level Anchor Reinforcement in Spillway Chute's Bottom Plates of Overflow CFRD

作　　者：杨美娥[1] 唐新军[1] 王相峰[1] 

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052

出　　处：《水利与建筑工程学报》2012年第6期87-90,共4页Journal of Water Resources and Architectural Engineering

基　　金：新疆水利水电工程重点学科资助项目(xjzdxk-2009-10-05)

摘　　要：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。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.

关 键 词：溢流面板堆石坝 泄槽 水平锚拉筋 竖向土压力 抗拔力 

分 类 号：TV314[水利工程—水工结构工程]