CAJ | 학술논문

利用图像处理软件对干湿循环后不同压实度的膨胀土试样表面裂隙参数进行提取，并通过曲线回归和拟合得到了裂隙参数之间的函数关系．结果表明：1）裂隙网络相关参数及块区个数、裂隙率、分形维数随干湿循环次数增加而增大，而块区平均面积逐步减小．提高膨胀土的压实度，可有效地抑制土样的开裂．2）裂隙条数、裂隙总长度、块区个数与裂隙率和分形维数都具有良好的指数关系，裂隙平均宽度和块区平均面积与裂隙率分别具有较好的二次多项式关系和对数关系，裂隙平均宽度与分形维数却具有很好的线性关系，区块平均面积与分形维数则具有较好的幂函数关系．实验结果可以简化裂隙的量测，推进裂隙的定量化表述和裂隙的数值模拟化．
이용도상처리연건대간습순배후불동압실도적팽창토시양표면렬극삼수진행제취，병통과곡선회귀화의합득도료렬극삼수지간적함수관계．결과표명：1）렬극망락상관삼수급괴구개수、렬극솔、분형유수수간습순배차수증가이증대，이괴구평균면적축보감소．제고팽창토적압실도，가유효지억제토양적개렬．2）렬극조수、렬극총장도、괴구개수여렬극솔화분형유수도구유량호적지수관계，렬극평균관도화괴구평균면적여렬극솔분별구유교호적이차다항식관계화대수관계，렬극평균관도여분형유수각구유흔호적선성관계，구괴평균면적여분형유수칙구유교호적멱함수관계．실험결과가이간화렬극적량측，추진렬극적정양화표술화렬극적수치모의화．
Image processing software was used to extract surface crack parameters of the different compacted ex -pansive soil samples under dry-wet cycles , and the function relation between the fracture parameters was obtained through the regression analysis and fitting .The results show that:1.Related parameters of fracture network and block number , fracture rate, fractal dimension increase with cycle number increasing , while the average area of the block area gradually decreases .Improved expansive soil compaction , soil sample cracking can be effectively restrained;2.Fracture number, fracture length, block number with crack rate and fractal dimension have good exponential relationship .The average area and average width of crack with crack rate respectively have good two order polynomial and logarithmic relationship .The average fracture width and fractal dimension have a good line-ar relationship .The average block size and fractal dimension tend to be a good power function relationship .The results can be simplified to measure crack , and can promote the fracture quantitative description and numerical simulation .