CAJ | 학술논문

为了研究高液限土路基掺沙改良的长期水稳定性和强度特性，以最大干密度、界限含水率、浸水CBR强度值作为路用特性分析的控制参数，进行室内试验和现场试验。依据不同掺沙量和压实度条件下各控制参数的变化规律确定最优掺沙比；在最优掺沙条件下，进一步分析路用水稳定性与施工控制参数，即含水率、压实度、击实功的变化规律，获得水稳定性和强度兼顾的施工参数最佳组合。试验表明，以空气率和饱和度作为路基施工质量检测双指标控制方法，可以弥补现行规范仅以压实度作为单一质量评价标准的不足。
위료연구고액한토로기참사개량적장기수은정성화강도특성，이최대간밀도、계한함수솔、침수CBR강도치작위로용특성분석적공제삼수，진행실내시험화현장시험。의거불동참사량화압실도조건하각공제삼수적변화규률학정최우참사비；재최우참사조건하，진일보분석로용수은정성여시공공제삼수，즉함수솔、압실도、격실공적변화규률，획득수은정성화강도겸고적시공삼수최가조합。시험표명，이공기솔화포화도작위로기시공질량검측쌍지표공제방법，가이미보현행규범부이압실도작위단일질량평개표준적불족。
In order to study road properties of mixing sand improvement, the high liquid limit soil, the maximum dry density, the limit moisture content and soaking CBR value all serve as control parameters for optimal sand ratio. Thus, the aim of the present study is to predict the optimal sand ratio with the change rule under condition of sand contents and degree of compaction taking into account economic benefit. The optimal construction control combination were obtained by varying characters of CBR value, water stability, the moisture content, degree of compaction and the compaction power in optimum sand content. Overall, the result suggested that air ratio and saturation can be used as a criterion of construction quality control. Further, this finds will improve the deficiency of the present standard, which used compaction solely as construction quality control.