西北水电
西北水電
서북수전
NORTHWEST WATER POWER
2015年
2期
84-86
,共3页
水泥改性%膨胀土%击实试验%作用机理%时间关系
水泥改性%膨脹土%擊實試驗%作用機理%時間關繫
수니개성%팽창토%격실시험%작용궤리%시간관계
property modified by cement%swelling soil%compaction test%function mechanism%time relationship
根据实际工程中水泥改性膨胀土填筑压实度达不到设计要求的问题,通过一系列击实试验成果资料的对比分析,得出随着膨胀土掺加水泥拌和后击实试验时间不同对最大干密度和最优含水率的影响规律,提出了应采用和现场碾压工况相匹配的击实试验参数,用于现场压实度检测,解决了施工填筑质量的控制问题。
根據實際工程中水泥改性膨脹土填築壓實度達不到設計要求的問題,通過一繫列擊實試驗成果資料的對比分析,得齣隨著膨脹土摻加水泥拌和後擊實試驗時間不同對最大榦密度和最優含水率的影響規律,提齣瞭應採用和現場碾壓工況相匹配的擊實試驗參數,用于現場壓實度檢測,解決瞭施工填築質量的控製問題。
근거실제공정중수니개성팽창토전축압실도체불도설계요구적문제,통과일계렬격실시험성과자료적대비분석,득출수착팽창토참가수니반화후격실시험시간불동대최대간밀도화최우함수솔적영향규률,제출료응채용화현장년압공황상필배적격실시험삼수,용우현장압실도검측,해결료시공전축질량적공제문제。
In engineering practice, the compaction degree of the cement-modified soil cannot satisfy the design requirement.Through comparison and analysis on data of a series of compaction tests, the law impacting the maximum dry intensity and the optimum moisture content with different compaction duration after the soil being mixed with cement is derived.Parameters of the compaction tests matching the site compaction conditions to be applied are raised, which can be utilized to inspect the site compaction degree, providing the solution of the quality control ofembankment construction.