CAJ | 학술논문

针对淮北平原新近沉积层土质变化大、普遍发育钙质结核等地质特征,依托在建高速公路开展大量的动态平板载荷试验,统计分析不同土体动态变形模量 vdE 的值域范围和变化规律,探讨淮北平原不同地质区域 vdE 的分布特征.在此基础上,通过静力触探、螺旋板载荷和平板载荷对比试验,建立动态变形模量 vdE 与比贯入阻力、地基承载力的相关关系式.研究表明,动态平板载荷试验作为一种便捷快速的原位检测方法,测试值 vdE 能很好地反映原地基土体力学特性和变化规律,与比贯入阻力 sp 值、地基承载力具有较好的相关性,可在高速公路工程中作为地基承载力测定指标加以推广应用.
침대회북평원신근침적층토질변화대、보편발육개질결핵등지질특정,의탁재건고속공로개전대량적동태평판재하시험,통계분석불동토체동태변형모량 vdE 적치역범위화변화규률,탐토회북평원불동지질구역 vdE 적분포특정.재차기출상,통과정력촉탐、라선판재하화평판재하대비시험,건립동태변형모량 vdE 여비관입조력、지기승재력적상관관계식.연구표명,동태평판재하시험작위일충편첩쾌속적원위검측방법,측시치 vdE 능흔호지반영원지기토체역학특성화변화규률,여비관입조력 sp 치、지기승재력구유교호적상관성,가재고속공로공정중작위지기승재력측정지표가이추엄응용.
According to geological characteristics of recently sedimentary layer in Huaibei plain,such as existence of different soil and calcareous concretions,a large number of dynamic plate loading tests are carried out relying on highways under construction. The range and variation of dynamic deformation modulus E are analyzed for vd different soils,and distribution characteristics of E are discussed for different geological area in Huaibei plain. vd On this basis,relationships between the E and penetration resistance,bearing capacity of foundation are vd established through static cone penetration tests,screw plate tests and plate loading tests. Studies show that, dynamic plate loading test is a fast and convenient in situ test,and mechanics characteristics and regularity of foundation soil can be reflected well by vdE ,which has good relativity with penetration resistance of p value s and bearing capacity of the foundation. E can be used in highway engineering as a foundation bearing capacity vd determination index.