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在许多情况下已成功地用桩来支承横向荷载。这些基础上的横向荷载是由于土压、水压、风力或地震力所引起的。这类结构物的规模日益增大和临海结构物的增多引起投资增加,因而迫切需要对支承横向荷载桩的特性进行精确地研究。以往曾试用土压力系数的方法来分析支承横向荷载的刚性直桩。由于土压力系数与桩面的粗糙程度的关系极大,因此在估算不同材料的桩极限承载力时应采用不同的系数。因此对以往推导的土压力系数公式按照不同的表面粗糙程度,由光滑到粗糙,加以修正。曾编制了电算程度并将成果以图表示,以便在计算刚性桩在水平荷载作用下的极限承载力时直接查用。曾用这些土压力系数对现有文献中不同研究者介绍的桩的极限承载力加以计算并与试验成果相比较。曾对理论估算值与试验值之间的差异加以讨论并作出分析结论。
In many cases the pile has been successfully used to support lateral loads. These are based on the lateral load is due to earth pressure, water pressure, wind or earthquake caused by force. The increasing scale of such structures and the increase in sea-shore structures have led to increased investment, and there is an urgent need to conduct an accurate study of the characteristics of the piles bearing transverse loads. In the past, earth pressure coefficients were used to analyze rigid straight piles supporting transverse loads. Due to the great relationship between the earth pressure coefficient and the roughness of pile surface, different coefficients should be used in estimating the ultimate bearing capacity of different materials. Therefore, the formula of earth pressure coefficient derived in the past is adjusted according to different surface roughness from smooth to rough. The degree of computerization has been compiled and the results graphically represented so that direct calculation can be made when calculating the ultimate bearing capacity of rigid piles under horizontal loads. These earth pressure coefficients were used to calculate the ultimate bearing capacity of piles introduced by different researchers in the existing literature and compared with the experimental results. The differences between theoretical estimates and experimental values have been discussed and conclusions have been drawn.