CAJ | 학술논문

我国北方地区大部分的基坑工程涉及范围内用土处于非饱和状态,研究基坑的非饱和特性有着十分重要的经济价值。基质吸力是影响非饱和土抗剪强度的一个非常重要的应力变量,同样它对基坑稳定性也有着极为重要的影响。本文针对河北邯郸金世纪新城深基坑的工程勘察实践,研究了采用自行研制的非饱和土水特性曲线仪,研究了该地区各土层的水力学特性,并利用简化的非饱和土强度公式分析了该地区深基坑的非饱和抗剪强度,为类似工程设计提供了参考。
아국북방지구대부분적기갱공정섭급범위내용토처우비포화상태,연구기갱적비포화특성유착십분중요적경제개치。기질흡력시영향비포화토항전강도적일개비상중요적응력변량,동양타대기갱은정성야유착겁위중요적영향。본문침대하북함단금세기신성심기갱적공정감찰실천,연구료채용자행연제적비포화토수특성곡선의,연구료해지구각토층적수역학특성,병이용간화적비포화토강도공식분석료해지구심기갱적비포화항전강도,위유사공정설계제공료삼고。
Research on the unsaturated properties of deep-pit is very important to decrease the construction cost,because that the soils are unsaturated in many case.It is well unknown that soil matric suction is an essential stress variable that influences the shear strength of unsaturated soil and consequently slope stability.In this contribution,the characterization of the unsaturated soil in HanDan JinShiJi deep pit is achieved by using the proposed equipments for SWCC.The SWCCs for every layer are compared.Finally,the unsaturated soil shear strength is investigated by the proposed simplified equation.