中国水利水电科学研究院学报2017，Vol.15Issue(4)：297-302,6.DOI:10.13244/j.cnki.jiwhr.2017.04.009
现场条件下水泥土劣化试验及劣化深度预测
Test of cement soil degradation under in-suit conditions and degradation depth prediction
杨俊杰 1董猛荣 2孙涛 1闫楠 2尚金瑞3
作者信息
- 1. 海洋环境与生态教育部重点实验室,山东青岛266100
- 2. 中国海洋大学环境科学与工程学院,山东青岛266100
- 3. 山东科技大学地球科学与工程学院,山东青岛266590
- 折叠
摘要
Abstract
The deterioration of the reinforced structure can be classified into the deterioration problem due to site pollution after the reinforced structure is formed in the non-corrosive site and the deterioration problem that the reinforced structure is formed in the corrosive site.Aiming at the latter,the method of taking soil from site,preparing reinforced structure in door,and burying reinforced structure in site is implemented.Reinforced structure buried in site will be deteriorated under the influence of corrosive media and the external factors such as hydrodynamic force,temperature and tide.The micro-penetration test and chemical tests of the cement soil samples buried in the coastal site for 3.5 years are conducted.The results show that the decrease of strength caused by deterioration lags behind its chemical reaction and the deterioration of cement soil are more serious under the condition of less cement ratio and longer buried time.Under the experimental conditions,the degradation depth of cement sample whose cement ratio is 15％ reached 3.5mm,5.8mm and 7.6mm after 1 year,2.5 years and 3.5 years respectively.Based on the experimental results,the prediction formula of degradation depth of cement soil is put forward.关键词
海相软土/水泥土/微型贯入试验/劣化/劣化深度预测Key words
marine soft soil/cement soil/micro penetration test/degradation/degradation depth prediction分类
水利科学引用本文复制引用
杨俊杰,董猛荣,孙涛,闫楠,尚金瑞..现场条件下水泥土劣化试验及劣化深度预测[J].中国水利水电科学研究院学报,2017,15(4):297-302,6.
