|
|||||
|
|
Compaction Induced Yield Stress |
|
| Authors: | K Prakash A Sridharan H S Prasanna |
| Institution: | 1. Department of Civil Engineering, Sri Jayachamarajendra College of Engineering, Mysore, 570 006, India 2. INSA Honorary Scientist, New Delhi, India 3. Department of Civil Engineering, National Institute of Engineering, Mysore, 570 008, India |
| Abstract: | In order to realize more benefits and to have more effective output from the mechanical ground improvement projects, the field soils are subjected to over consolidation. This process induces a characteristic yield stress in the compacted soil mass similar to that exhibited by the soil masses subjected to natural processes of over consolidation during their geological life time. In view of the absence of any documented geotechnical engineering literature on such an important topic, this paper intends to throw some useful light on compaction induced yield stress in fine-grained soils. A detailed discussion of various factors contributing to the induced yield stress as a consequence of compaction is done. The results of the present experimental study indicates that the values of compaction induced yield stress increase from dry side of optimum to optimum compacted state. This stress may tend to achieve an equilibrium value or decrease beyond optimum compacted state depending upon the contribution from the coarser fraction composing the soil. It is also illustrated that the soils subjected to same compactive effort exhibit different values of yield stress as a consequence of clay mineralogical composition of the soils. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |