Evaluation of slope failure at Meethotamulla waste dump | |
| Author | Sachintha Jayasiri, Jayasiri M.N. |
| Call Number | AIT Caps. Proj. no.CIE-18-35 |
| Subject(s) | Slopes (Soil mechanics)--Stability Solid waste management--Sri Lanka Climatic changes--Thailand--Asian Institute of Technology |
| Note | A capstone project report submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Engineering Civil and Infrastructure Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Caps. Proj. ; no. CIE-18-35 |
| Abstract | On April 14, 2017, the garbage mound located at Meethotamulla, Kolonnawa also called as Meethotamulla garbage dump collapsed at 14.45 hrs. destroying 32 lives and 60 houses. This was the largest slope failure occurred in a Sri Lankan municipal solid waste landfill. By conducting a slope stability analysis for this dump, we can identify the factors that cause the failure and prevent failures from occurring again in the future by suggesting suitable remedial measures. Required data for this analysis were collected from National Building Research Organization of Sri Lanka. From the results of the slope stability analysis it can be determined that, intense rainfall prior to the collapse has caused for the failure of this garbage dump. Due to the infiltration of the rainwater into the garbage dump, weight of the garbage materials of the upper layer increased while its shear strength decreased. As a result, causing the garbage dump to undergo failure. Furthermore, increase in the water table in sub-soil layers and the geometry of the landfill could have been the other contributory factors for the failure. The stability can be increased by reshaping the geometry (slope and height) of the garbage dump. Monitoring system can be installed to identify the chances of failure beforehand. |
| Year | 2018 |
| Corresponding Series Added Entry | Asian Institute of Technology. Caps. Proj. ; no. CIE-18-35 |
| Type | Capstone Project |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Civil and Infrastructure Engineering (CIE) |
| Chairperson(s) | Chao, Kuo-Chieh ;Tian Ho Seah (Co-Chairperson); |
| Degree | Capstone Project (B.Sc.)-Asian Institute of Technology, 2018 |