山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2015年
26期
95-95,96
,共2页
刘思奇%冯文泉%孙皓%申杨凡%王绍全
劉思奇%馮文泉%孫皓%申楊凡%王紹全
류사기%풍문천%손호%신양범%왕소전
冻融过程%粘性土%无侧限抗压强度
凍融過程%粘性土%無側限抗壓彊度
동융과정%점성토%무측한항압강도
freezing thawing process%cohesive soil%unconfined compressive strength
为了研究冻融过程中粘性土的强度变化规律,通过对不同冻融时间(2 h,4 h,6 h)的土体进行了无侧限抗压强度试验,得到了其无侧限抗压强度,并与素土的无侧限抗压强度作了对比,试验结果表明:随着冻融时间的增加,土体无侧限抗压强度呈现三次抛物线下降趋势;土体经过冻融以后随冻融过程的加剧更易达到无侧限应力峰值。
為瞭研究凍融過程中粘性土的彊度變化規律,通過對不同凍融時間(2 h,4 h,6 h)的土體進行瞭無側限抗壓彊度試驗,得到瞭其無側限抗壓彊度,併與素土的無側限抗壓彊度作瞭對比,試驗結果錶明:隨著凍融時間的增加,土體無側限抗壓彊度呈現三次拋物線下降趨勢;土體經過凍融以後隨凍融過程的加劇更易達到無側限應力峰值。
위료연구동융과정중점성토적강도변화규률,통과대불동동융시간(2 h,4 h,6 h)적토체진행료무측한항압강도시험,득도료기무측한항압강도,병여소토적무측한항압강도작료대비,시험결과표명:수착동융시간적증가,토체무측한항압강도정현삼차포물선하강추세;토체경과동융이후수동융과정적가극경역체도무측한응력봉치。
In order to research the strength change law of cohesive soil during freezing thawing process,through the unconfined compressive strength of soil with different freezing thawing time of 2 h,4 h,6 h,gained its unconfined compressive strength,compared with the unconfined compressive strength of plain soil,the test results showed that with the increase of freezing thawing time,the soil unconfined compressive strength presented three parabolic downward trend,with the increase of freezing thawing process easier to be unconfined compressive strength peak value after soil freezing thawing.