Discussion on Bearing Capacity Values for Weakly Cemented Gravel Sandstone Foundation
This paper analyzes and explains the limitations of the standard values for the bearing capacity of the foundation of the northern anchorage of the Longtan Yangtze River Bridge,focusing on the weakly cemented gravel bearing sandstone in the widely distributed tertiary semi diagenetic strata.Based on in-si-tu tests and existing theories and experiences,a comprehensive comparative study is conducted to deter-mine the bearing capacity of the foundation using various methods.It summarizes the comprehensive value method for the bearing capacity of the tertiary semi rock foundation,and provides empirical supplements to its value in the specifications.Specifically,the characteristic value of the bearing capacity of semi rock foundation can be increased by 10%according to the range of medium dense angular gravel or recommen-ded according to dense gravelly sand.
semi-diageneticbearing capacityanchoragedeep plate load test
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