a preliminary analysis of the suction penetration mechanism is made, the influence of negative pressure on the penetration resistance and soil character are studied in conbination with the cb20b platform field test data, and the relationship between negative pressure, penetration depth and penetration speed are summarized 對負(fù)壓沉貫的機(jī)理進(jìn)行了初步分析,結(jié)合cb20b桶形基礎(chǔ)計量平臺的現(xiàn)場測試數(shù)據(jù),研究了負(fù)壓對桶形基礎(chǔ)沉貫阻力的影響及對土壤特性的影響,同時對負(fù)壓、沉貫深度、沉貫速度之間的關(guān)系進(jìn)行了總結(jié)。