同济大学学报（自然科学版）2012，Vol.40Issue(4)：549-552,588,5.DOI:10.3969/j.issn.0253-374x.2012.04.008
实验室用小型单桥静力触探探头的标定
Calibration of a Miniature Cone Penetrometer for Geotechnical Model Test
摘要
Abstract
A miniature single bridge cone penetrometer was manufactured to measure the mechanical properties of soils in the geotechnical model tests. Such tests and researches were carried out to calibrate this miniature penetrometer as calibration of the penetrometer ' s measuring system, investigation of statistical relationship between specific penetration resistance ( p,) and undrained shear strength (cu). contrast of penetration test results between the miniature and standard penetrometers. and comparison of this statistical relationship with current empirical equations. The results show that the calibration curve of the miniature penetrometer's measuring system is linear with 262×10-12 Pa-1 of its sensitivity. Penetration resistance-depth curve for a remoulded clay foundation by the miniature penetrometer is close to, but more delicate than the curve by standard penetrometer. The p,-cu relationship obtained by authors is consistent with an empirical equation proposed by China Communication First Design Institute of Navigation Engineering. Thus, this miniature penetrometer can be used for comparison of the mechanical properties of saturated remoulded clays in laboratory as well as measuring their undrained shear strength values.关键词
静力触探试验/单桥探头/标定/土工模型试验/经验公式Key words
cone penetration test/ single bridge cone penetrometer/ calibration/ geotechnical model test/empirical equation分类
建筑与水利引用本文复制引用
陈建峰,柳军修,马君..实验室用小型单桥静力触探探头的标定[J].同济大学学报（自然科学版）,2012,40(4):549-552,588,5.基金项目
国家自然科学基金(41072200) （41072200）
