深层标贯杆长修正问题的探讨

On the Revision of Rod Length in Deep Standard Penetration Test

标准贯入杆长修正方法,目前一直未有统一认识,随着高层建筑的大量兴建,工程勘察中深层标贯杆长修正问题的解决已迫在眉捷。本文阐述了标贯杆长修正方法的两种不同理论,讨论了国内外现行的各种杆长修正方法,最后提出了一种可行的深层标贯杆长的修正系数。

The method to revise the rod length in standard penetration test has not reached an unified understanding till now. Along with the abundant construction of high-rise buildings the solution of the revision of rod length in standard penetration test for geotechnical investigation appears to be very urgent. Two different theories on the revision of rod length are described herein. Various methods for the revision of rod length, now used both in China and abroad, are discussed. A feasible coefficient of revision for rod length of deep standard penetration test is also proposed.