【摘要】 通过对深厚软黏土地基中振动沉管砂石桩的施工监测,分析了振动响应随桩打入深度及土层的变化规律,探讨了周围土体深层水平位移及建构筑物沉降随打桩量和打桩距离的关系。结果表明,在深厚软黏土地基中进行振动挤土桩的施工,振动效应不可忽略。打桩点距离周围建构筑物1～2倍桩长时,振动效应大于挤土效应;距离1倍桩长范围内时,挤土效应起主要作用。更多还原

【Abstract】 Through the construction monitoring of vibrating sunken tube sandstone pile in deep soft clay foundation, the vibration response varies with driving depth was analyzed. The relationships between deep horizontal displacement of surrounding soil and pile driving amount, pile driving distance were discussed. The results show that the vibration effect cannot be neglected in vibrating construction of dense-squeezing piles in deep soft clay foundation. When the pile driving point is 1 to 2 times the length of the surrounding buildings(structures), the vibration effect is larger than the squeezing effect. However, the squeezing effect plays a major role when the distance is 1 times of the pile length.更多还原