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针对襄阳市内环线汉江五桥桥位卵石层分布较广,密实程度不一的特点,在汉江五桥7#墩、20#墩采用自平衡法进行了2根试桩的承载力试验。试验结果表明,卵石层的密实程度对试验结果有较大影响。试验结果与规范建议取值相比也存在较大差异。
According to the characteristics of wide and dense gravel layers in the bridges of the fifth Hanjiang River Bridge in the inner ring of Xiangyang City, the bearing capacity tests of two test piles were carried out by means of self-balance method at No. 7 pier and No. 20 pier of the fifth Hanjiang River Bridge. The test results show that the density of pebble layer has great influence on the test results. There is also a big difference between the test result and the recommended value of the standard.