资源导刊·地球科技版
資源導刊·地毬科技版
자원도간·지구과기판
RESOURCES GUIDE·EARTH SCIENCE AND TECHNOLOGY
2013年
9期
87-89
,共3页
郭小帅%何建锋%于新政%刘雨
郭小帥%何建鋒%于新政%劉雨
곽소수%하건봉%우신정%류우
等向固结%三轴试验%强度参数%应力-应变曲线
等嚮固結%三軸試驗%彊度參數%應力-應變麯線
등향고결%삼축시험%강도삼수%응력-응변곡선
anisotropic consolidation%triaxial test%shear strength parameters%stress-strain curve
自然状态下土体的固结过程为不等向固结过程,通过对比常规加载三轴试验与经历不等向固结过程三轴试验的强度参数及变形曲线,得出经历了不等向固结过程的土体强度要比常规加载三轴试验强度高,而不等向固结的土体随应力增长其应变更为平缓均匀,因此在基坑工程进行开挖及支护设计时,使用常规加载三轴试验参数是偏于安全的。
自然狀態下土體的固結過程為不等嚮固結過程,通過對比常規加載三軸試驗與經歷不等嚮固結過程三軸試驗的彊度參數及變形麯線,得齣經歷瞭不等嚮固結過程的土體彊度要比常規加載三軸試驗彊度高,而不等嚮固結的土體隨應力增長其應變更為平緩均勻,因此在基坑工程進行開挖及支護設計時,使用常規加載三軸試驗參數是偏于安全的。
자연상태하토체적고결과정위불등향고결과정,통과대비상규가재삼축시험여경력불등향고결과정삼축시험적강도삼수급변형곡선,득출경력료불등향고결과정적토체강도요비상규가재삼축시험강도고,이불등향고결적토체수응력증장기응변경위평완균균,인차재기갱공정진행개알급지호설계시,사용상규가재삼축시험삼수시편우안전적。
The?natural?state?of?the?soil?under?the?consolidation?process?is?the?anisotropic?consolidation?process,?according?to?compare?the?conventional?load?triaxial?test?and?experienced?the?anisotropic?consolidation?process?triaxial?test?shear?strength?parameters?and?stress-strain?curve,?obtained?the?anisotropic?consolidation?process?of?soils?strength?higher?than?the?conventional?load?triaxial?test?strength,?and?the?anisotropic?consolidation?of?the?soil?deformation?to?be?more?smooth?and?uniform?when?the?stress?increment.?So?use?the?conventional?load?triaxial?test?shear?strength?parameters?are?safer?in?the?foundation?pit?excavation?and?support?design.