厦门理工学院学报
廈門理工學院學報
하문리공학원학보
JOURNAL OF XIAMEN UNIVERSITY OF TECHNOLOGY
2012年
3期
75-77,81
,共4页
三明市%路基%高液限土%压实标准
三明市%路基%高液限土%壓實標準
삼명시%로기%고액한토%압실표준
Sanming%subgrade%high liquid limit soil%compaction standards
通过试验测定了三明高速公路典型高液限土样在不同含水率情况下的重型击实密度、泡水前后的强度和水稳性;分析了土样干密度、密实度、浸水CBR强度与含水量之间的关系.试验结果表明：在含水率为25%～32%范围内进行该高液限土路基的填筑压实,可以取得较高的路基强度和水稳定性;综合考虑路基的压实度和浸水CBR强度,三明高液限土在93区填筑的质量控制标准为含水率介于25%～30%之间,压实度≥93%.
通過試驗測定瞭三明高速公路典型高液限土樣在不同含水率情況下的重型擊實密度、泡水前後的彊度和水穩性;分析瞭土樣榦密度、密實度、浸水CBR彊度與含水量之間的關繫.試驗結果錶明：在含水率為25%～32%範圍內進行該高液限土路基的填築壓實,可以取得較高的路基彊度和水穩定性;綜閤攷慮路基的壓實度和浸水CBR彊度,三明高液限土在93區填築的質量控製標準為含水率介于25%～30%之間,壓實度≥93%.
통과시험측정료삼명고속공로전형고액한토양재불동함수솔정황하적중형격실밀도、포수전후적강도화수은성;분석료토양간밀도、밀실도、침수CBR강도여함수량지간적관계.시험결과표명：재함수솔위25%～32%범위내진행해고액한토로기적전축압실,가이취득교고적로기강도화수은정성;종합고필로기적압실도화침수CBR강도,삼명고액한토재93구전축적질량공제표준위함수솔개우25%～30%지간,압실도≥93%.
Through laboratory tests, dry density under heavy compaction, strength before and after soaking, water stability of typical high liquid limit soil sample from expressway engineering in Sanming under different water content are measured. The relationships between dry density, degree of compaction, CBR strength after soaking and water content of the sample are also analyzed. The compaction standards of high liquid limit soil highway subgrade with CBR soaked strength and compaction degree are put forward.
