后勤工程学院学报
後勤工程學院學報
후근공정학원학보
JOURNAL OF LOGISTICAL ENGINEERING UNIVERSITY
2014年
6期
12-16
,共5页
赵帅军%陆新%杨森%苏杭
趙帥軍%陸新%楊森%囌杭
조수군%륙신%양삼%소항
强夯试验%加固效果%碎石土%深厚填方
彊夯試驗%加固效果%碎石土%深厚填方
강항시험%가고효과%쇄석토%심후전방
dynamic compaction test%reinforcement effect%gravelly soil%deep fill
为获得10000 kN·m高能级强夯处理碎石土填方效果,并研究不同填土厚度对强夯影响深度的作用,分别在厚度为10 m和30 m的A,B 2块碎石土填方试验区上进行强夯试验。应用静载试验、超重型动力触探和瑞雷波测试对试验场地夯前、夯后的土层进行检测。结果表明:经过10000 kN·m高能级强夯处理后,2块填方试验区的承载力和变形模量都有较大提高;A试验区的强夯显著影响段为8 m,大于B试验区的6 m,说明强夯对有限厚度填土(强夯影响深度以下为硬层)加固效果更好,而对无限厚度填土(强夯影响深度以下为松散填土层)强夯能量的消散速度更快。
為穫得10000 kN·m高能級彊夯處理碎石土填方效果,併研究不同填土厚度對彊夯影響深度的作用,分彆在厚度為10 m和30 m的A,B 2塊碎石土填方試驗區上進行彊夯試驗。應用靜載試驗、超重型動力觸探和瑞雷波測試對試驗場地夯前、夯後的土層進行檢測。結果錶明:經過10000 kN·m高能級彊夯處理後,2塊填方試驗區的承載力和變形模量都有較大提高;A試驗區的彊夯顯著影響段為8 m,大于B試驗區的6 m,說明彊夯對有限厚度填土(彊夯影響深度以下為硬層)加固效果更好,而對無限厚度填土(彊夯影響深度以下為鬆散填土層)彊夯能量的消散速度更快。
위획득10000 kN·m고능급강항처리쇄석토전방효과,병연구불동전토후도대강항영향심도적작용,분별재후도위10 m화30 m적A,B 2괴쇄석토전방시험구상진행강항시험。응용정재시험、초중형동력촉탐화서뢰파측시대시험장지항전、항후적토층진행검측。결과표명:경과10000 kN·m고능급강항처리후,2괴전방시험구적승재력화변형모량도유교대제고;A시험구적강항현저영향단위8 m,대우B시험구적6 m,설명강항대유한후도전토(강항영향심도이하위경층)가고효과경호,이대무한후도전토(강항영향심도이하위송산전토층)강항능량적소산속도경쾌。
In order to obtain effects of gravelly soil fill with 10 000 kN·m high energy level dynamic compaction and explore the effect of the depth of fill on the experimental results, dynamic compaction tests are conducted in two gravelly soil fills of 10 m and 30 m respectively, which are marked as A and B. The effect after dynamic compaction is analyzed by a plate loading test, ultra heavy dynamic sounding and Rayleigh wave detection. The results show that foundation bearing compaction and the modulus of de?formation are significantly improved after dynamic compaction;the depth of influence of 10 m fill is 8 m while 30 m fill is 6 m, indi?cating that high energy level dynamic compaction shows better performance in filling of finite thickness, where hard foundation lies below depth of influence, whereas, for filling of infinite thickness, where loose filling lies below depth of influence, energy of dynamic compaction dissipates faster.