上海地区建筑工程普遍采用桩基,但以粘性土为持力层的预制桩实测承载力普遍低于理论值,主要是因为休止期较短及对端承力作用认识不足。
Pile foundation is widely used in construction in Shanghai region, but the site test data on bearing capacity of pre-cast concrete pile based on cohesive soil were lower than theoretical level.
软岩地基上的嵌岩桩基础一般都认为是端承桩,设计时假定上部结构荷载全部由桩来承受,而不考虑桩间土的承载力。
Piles socketed in soft rock were traditionally regarded as end bearing piles, and the loads transferred from superstructure were assumed in design to be shouldered totally by the piles.
浆体与软弱地基土结合形成复合地基,可提高桩端承载力。
Cement paste with the weak foundation soil combine to form a composite foundation, can improve pile bearing capacity.
由于灌注桩桩底虚土难以清理干净,致使端阻不能充分发挥,对灌注桩极限承载力及沉降产生较大影响。
Because of the virtual earth under the pile ending hard to clean, the ending bearing is seldom worked sufficiently, which leads to ultimate bearing capacity and settlement problems.
为了研究粉土中钻孔群桩的工作性能和承载力等问题,进行了系统的接近于原型尺寸的现场群桩试验。通过埋设测试元件对承台土反力、桩侧摩阻力、桩端阻力、桩土相对位移等进行了测定。
Systematic field tests on pile groups with near prototype size have been carried out in order to research into the behavior and bearing capacity of bored pile groups in silt.
在分析短桩加固区承载力内涵的基础上,提出了短桩长度由桩端处软土强度决定的设计标准。
The length of short pile is decided by soft soil strength of short pile tip in terms of analysis on bearing capacity of short pile.
文摘:应用高应变动力试桩法确定桩端土的极限承载力是动力触探领域中的一种好方法。
Abstract: the application of high-strain dynamic tentative piling technique to determining limited bearing capacity of pile endpoint soil is a good method in the field of dynamic depth detection.
应用高应变动力试桩法确定桩端土的极限承载力是动力触探领域中的一种好方法。
The application of high-strain dynamic tentative piling technique to determining limited bearing capacity of pile endpoint soil is a good method in the field of dynamic depth detection.
某建筑物基础采用人工挖孔桩,桩端持力层为花岗岩残积粘性土,经检测发现桩身完整而承载力远低于设计要求。
The manual hole digging pile was adopted in foundation of some building. Granite residual clay was chosen as the bearing stratum of pile tip.
某建筑物基础采用人工挖孔桩,桩端持力层为花岗岩残积粘性土,经检测发现桩身完整而承载力远低于设计要求。
The manual hole digging pile was adopted in foundation of some building. Granite residual clay was chosen as the bearing stratum of pile tip.
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