Relationship between swelling pressures determined by a consolidation-swell test and a constant-volume test | |
| Author | Zin Moe Htut |
| Call Number | AIT Thesis no.GE-17-01 |
| Subject(s) | Swelling soil Soil consolidation |
| Note | A thesis submitted in partial fulfillment of the re quirements for the degree of Master of Engineering in Geotechnical and Earth Resources Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-17-01 |
| Abstract | Expansive soil that has a significant potential to change in volume associated with changes in natural water content. Expansion of the soil is a crucial parameter for assessing t he performance of foundations founded on expansive soi l. Prediction of free field heave using the important parameter of the heave index, C H based on two oedometer test results. The heave index can be measured with the percent swell in the specific inundation stress in the consolidation-swell test and the constant-volume te st swelling pressure. It is useful to obtain the relationship between the swelling pressure σ '' CS determined from consolidation-swell test and σ '' CV determined from constant volume test, so that the heave index can be obtained on the basis of a single test . The relationship between σ '' CS and σ '' CV is based on the experimental result of expansive so il behavior and facilitates the heave prediction from a single oedometer test for each so il. This method uses the parameter "m" which relies on specific soil property. This study focuses to examine the parameter “m” val ue based on the relationship between swelling pressures of soil by using the two methods of oedometer testing, including consolidation-swell method and constant volume meth od are determined. General basis soil properties test involve; Particle size distribution , atterberg limit, specific gravity, compaction and the natural soil water content are measured. Th e relationship between the parameter “m” value and the degree of saturation of the soil are also determined. The relationship between swelling pressures obtained from both method is imp ortant in the prediction of heave. The soil sample used for the study is from different lo cations such as Myanmar and Thailand. Furthermore, bentonite and sand mixture were tested in order to compare with the different two soil samples. Besides the prediction of field-f ree heave, the comparison of the risk of movement is determined from soil index properties. All the laboratory testing are followed by the procedure of ASTM. |
| Year | 2017 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-17-01 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Kuo-Chieh Chao; |
| Examination Committee(s) | Noppadol Phien-wej;Pham Huy Giao; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2018 |