水力发电
水力髮電
수력발전
WATER POWER
2014年
12期
31-34
,共4页
复合材料坝%胶凝砂砾石%碾压混凝土%垂直应力%抗滑稳定系数
複閤材料壩%膠凝砂礫石%碾壓混凝土%垂直應力%抗滑穩定繫數
복합재료패%효응사력석%년압혼응토%수직응력%항활은정계수
composite dam%cemented sand&gravel%roller compacted concrete%vertical stress%sliding stability factor
介绍了一种由碾压混凝土与胶凝砂砾石组合形成的RCC-CSG复合材料坝，该坝型可充分发挥坝体强度、节省材料、减小环境影响，且两种材料筑坝方式均为碾压成形，便于施工。推导了适用于内外型复合材料层面垂直应力计算的类均质体公式与抗滑稳定系数计算的分段求和法公式。通过计算某复合重力坝的单一材料层面与复合材料层面，并与有限元计算结果比较，表明类均质体方法可以很好地描述层面应力分布形态，分段求和法计算的抗滑稳定系数与有限元法计算结果误差在允许范围内，两种方法可用于内外型复合材料层面计算。
介紹瞭一種由碾壓混凝土與膠凝砂礫石組閤形成的RCC-CSG複閤材料壩，該壩型可充分髮揮壩體彊度、節省材料、減小環境影響，且兩種材料築壩方式均為碾壓成形，便于施工。推導瞭適用于內外型複閤材料層麵垂直應力計算的類均質體公式與抗滑穩定繫數計算的分段求和法公式。通過計算某複閤重力壩的單一材料層麵與複閤材料層麵，併與有限元計算結果比較，錶明類均質體方法可以很好地描述層麵應力分佈形態，分段求和法計算的抗滑穩定繫數與有限元法計算結果誤差在允許範圍內，兩種方法可用于內外型複閤材料層麵計算。
개소료일충유년압혼응토여효응사력석조합형성적RCC-CSG복합재료패，해패형가충분발휘패체강도、절성재료、감소배경영향，차량충재료축패방식균위년압성형，편우시공。추도료괄용우내외형복합재료층면수직응력계산적류균질체공식여항활은정계수계산적분단구화법공식。통과계산모복합중력패적단일재료층면여복합재료층면，병여유한원계산결과비교，표명류균질체방법가이흔호지묘술층면응력분포형태，분단구화법계산적항활은정계수여유한원법계산결과오차재윤허범위내，량충방법가용우내외형복합재료층면계산。
The composite dam, made by Roller Compacted Concrete (RCC) and Cemented Sand & Gravel (CSG), has several advantages, including full material strength utilization, less construction material consumption and slight environment impact, and easy construction as both of two materials can being rolled into shape. The formula for calculating vertical stress based on quasi-homogeneous body method and the formula for calculating sliding stability based on standard step method are derived for the composite layers of RCC-CSC composite dam by considering the differences of properties between two materials. A RCC-CSC gravity dam is analyzed by using proposed methods and the results are compared with the results of finite element method. The comparison shows that the quasi-homogeneous body method can well describe stress distribution, and the error of sliding stability calculated by standard step method and finite element method respectively is in allowable range. The proposed two formulas can be used in the calculation of RCC-CSC composite layers.
