上海地质
上海地質
상해지질
2007年
2期
29~32
,共null页
郑少河 姚海林 葛修润
鄭少河 姚海林 葛脩潤
정소하 요해림 갈수윤
膨胀土 土体开裂 基质吸力 线弹性断裂力学
膨脹土 土體開裂 基質吸力 線彈性斷裂力學
팽창토 토체개렬 기질흡력 선탄성단렬역학
expansive soil, soil cracking behavior, matrix suction, lineal elastic - fracture mechanics (LEFM)
采用线弹性断裂力学的方法,针对气候影响下的膨胀土开裂问题,提出了膨胀土开裂深度和裂缝间距的定量表达式,经比较与现场实测结果基本一致。并对开裂深度与泊松比、断裂韧度、基质吸力等土体特性参数的关系进行了详细的论述。
採用線彈性斷裂力學的方法,針對氣候影響下的膨脹土開裂問題,提齣瞭膨脹土開裂深度和裂縫間距的定量錶達式,經比較與現場實測結果基本一緻。併對開裂深度與泊鬆比、斷裂韌度、基質吸力等土體特性參數的關繫進行瞭詳細的論述。
채용선탄성단렬역학적방법,침대기후영향하적팽창토개렬문제,제출료팽창토개렬심도화렬봉간거적정량표체식,경비교여현장실측결과기본일치。병대개렬심도여박송비、단렬인도、기질흡력등토체특성삼수적관계진행료상세적논술。
With the method of lineal elastic fracture mechanics, the cracking depth and spacing of expansive soil due to climatic condition are presented according to the site test results. At the same time, the relationship between cracking depth of expansive soil and soil parameters, such as Poisson' s ratio, fracture toughness and matrix suction, are detailed discussed.