公路工程
公路工程
공로공정
Highway Engineering
2015年
5期
36-39
,共4页
改性玄武岩残积土%崩解特性试验%干湿循环试验%水稳性
改性玄武巖殘積土%崩解特性試驗%榦濕循環試驗%水穩性
개성현무암잔적토%붕해특성시험%간습순배시험%수은성
modified residual soil of basalt%the characteristics slaking tests%the tests of wetting and drying%the water stability
采用不同比例石灰、粉煤灰、水泥对玄武岩残积土进行改性处理的两种不同改性玄武岩残积土，对其进行崩解特性试验和干湿循环下抗压强度。结果表明：玄武岩残积土在很短的时间内崩解，改性土在经历24 h之后，仍无崩解现象；改性土在刚开始的7次干湿循环下抗压强度明显的增大，之后随着干湿循环次数的增加而降低，最终两种改性土的抗压强度有相等趋势；并得出与天然的玄武岩残积土相比，改性土具有很好的水稳性。这为玄武岩残积土地区环境对工程建设的影响提供数据参考。
採用不同比例石灰、粉煤灰、水泥對玄武巖殘積土進行改性處理的兩種不同改性玄武巖殘積土，對其進行崩解特性試驗和榦濕循環下抗壓彊度。結果錶明：玄武巖殘積土在很短的時間內崩解，改性土在經歷24 h之後，仍無崩解現象；改性土在剛開始的7次榦濕循環下抗壓彊度明顯的增大，之後隨著榦濕循環次數的增加而降低，最終兩種改性土的抗壓彊度有相等趨勢；併得齣與天然的玄武巖殘積土相比，改性土具有很好的水穩性。這為玄武巖殘積土地區環境對工程建設的影響提供數據參攷。
채용불동비례석회、분매회、수니대현무암잔적토진행개성처리적량충불동개성현무암잔적토，대기진행붕해특성시험화간습순배하항압강도。결과표명：현무암잔적토재흔단적시간내붕해，개성토재경력24 h지후，잉무붕해현상；개성토재강개시적7차간습순배하항압강도명현적증대，지후수착간습순배차수적증가이강저，최종량충개성토적항압강도유상등추세；병득출여천연적현무암잔적토상비，개성토구유흔호적수은성。저위현무암잔적토지구배경대공정건설적영향제공수거삼고。
Using two different with different ratio of lime,fly ash,cement on the residual soil of basalt modification treatment,and under performance test and under cyclic wetting,measuring compres-sive strength of modified residual soil of basalt.The results show that:the residual soil of basalt disinte-gration in a very short period of time,the modified soil is no disintegration phenomenon after 24 h;The compressive strength of modified soil increased obviously in the 7 cycle at the beginning,after decrease with the increase of cycle number,and last the compressive strength of both has the same trend;And compared with the natural residual soil of basalt,the water stability of modified soil is very good.It pro-vides reference data for the effects of basalt area environment for engineering construction.
