优化平板载荷试验装置对地基极限承载力特征值的影响

The Optimize Plate Loading Test Apparatus to Ultimate Bearing Capacity of Eigenvalues Impact

常规的原位试验平板载荷装置在确定地基极限承载力时误差大、精确度不高,导致所确定极限承载力不符合实际值;因此试验装置的优化改进对试验数据的精确度影响甚大。在平板荷载试验装置方面做了很大改进,将原位试验改进前后的试验数据得到的承载力值与承载力系数与经典的极限平衡法(Vesic经验公式及修正)计算极限承载力大小作对比,并结合潜在滑移场理论所确定极限承载力及土样的承载力系数,得到了优化试验装置对地基承载力特征值的影响。

The conventional plate loading device in situ tests to determine the uhimate bearing capacity has large error and the accuracy is not high, so that Determine the ultimate bearing capacity does not meet the actual value. Therefore, optimized and improved of the test device to the accuracy of the test data has very large affect. The fiat load test device has done a lot to improve. The data of Optimizing and improving front and rear in situ experiments obtained the bearing capacity and bearing capacity coefficients and classical limit equilibrium method （ Vesic empirical formula and correction ） to calculate the size of the ultimate bearing capacity for comparison. And Combining slip field method determines ultimate bearing capacity and soil bearing capacity factor, so obtaining opti- mize test device on Influence of foundation bearing capacity.