【摘要】 为更好地满足沙漠油田地面工程建设的需要 ,对沙漠砂采用平板振动器分层制样 ,进行了平板载荷、静力触探和标准贯入等一系列室内模拟试验。试验数据回归分析表明 :静力触探试验中 ,《TJ2 1- 77规范》与《JTJ2 40 - 97规范》等规范建议的承载力值偏小。标准贯入试验中 ,《GBJ7- 89规范》、《TJ7- 74规范》与《JTJ2 40 - 97规范》等规范砂土承载力推荐值与本文试验回归值相差较大 ,偏于保守 ,如将其用于沙漠地基勘查评价和基础设计中将造成很大浪费 ;现有一些规范在用SPT和CPT确定粉细砂承载力时存在矛盾 ,不够协调 ,因此不适用于沙漠地区 ,必须制定新的标准。更多还原

【Abstract】 In order to meet the need of ground engineering construction of desert oil field the layering desert sand samples were made by flat vibrator and a series of simulated testing, such as flat loading test,cone penetration test(CPT) and standard penetration test (SPT) etc. were carried out. It’s shown by the data of regressing analysis that the bearing value of some criterion acquired by CPT test, such us《TJ21-77norms》and《JTJ240-97norms》 is rather lower .The sand bearing of the criterion by SPT test in existence is conservative compared with the value of sand simulate test, so that will be very wasted if the commending value of the criterion is used to foundation perambulation and foundation design in desert area. In addition, the values of some criterion which determined by SPT and CPT are paradox and aren’t harmonious. The article advanced the table to determine the desert sand allowable bearing by the value of standard penetration test. So a new criterion need to be established ,which is adapted to desert sand area.更多还原