路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2012年
6期
90-92,98
,共4页
龚寒梅%刘文连%董凤强%李欣
龔寒梅%劉文連%董鳳彊%李訢
공한매%류문련%동봉강%리흔
膨胀土%含水量%不同压力%胀缩
膨脹土%含水量%不同壓力%脹縮
팽창토%함수량%불동압력%창축
expansive soil%water content%different pressures%expansion and shrink
通过现场钻孔取样、室内试验及长期观测结果的分析研究，分别对室内和场地、雨季和旱季、不同地貌条件下土层中的含水量进行分析，并在不同深度和压力条件下分析膨胀率，说明了膨胀土中含水量变化和外荷载压力是影响其胀缩量的基本因素，且该区膨胀土主要胀缩活动带在4．0m深度内。
通過現場鑽孔取樣、室內試驗及長期觀測結果的分析研究，分彆對室內和場地、雨季和旱季、不同地貌條件下土層中的含水量進行分析，併在不同深度和壓力條件下分析膨脹率，說明瞭膨脹土中含水量變化和外荷載壓力是影響其脹縮量的基本因素，且該區膨脹土主要脹縮活動帶在4．0m深度內。
통과현장찬공취양、실내시험급장기관측결과적분석연구，분별대실내화장지、우계화한계、불동지모조건하토층중적함수량진행분석，병재불동심도화압력조건하분석팽창솔，설명료팽창토중함수량변화화외하재압력시영향기창축량적기본인소，차해구팽창토주요창축활동대재4．0m심도내。
Through the field drilling sampling, indoor experiment and longtime observation, the water contents in soil layers indoor and outdoor, in rainy and drought seasons, and under different geomorphic conditions are studied, besides, the expansion rate on different conditions of depth and pressure is analyzed, through which the water content in the expansive soil and external load pressure are proved to be the basic factors affecting its expansion and shrink, and the expansion activities of the soil thereof come out in the range of 4. 0m in depth mainly.
