| Author | Notosiswojo, Sudarto |
| Call Number | AIT Thesis no.GT-81-21 |
| Subject(s) | Slopes (Soil mechanics)--Thailand--Mae Moh Lignite Mine
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | A landslide occurred on the West slope of the Mae Moh Lignite Mine. If remedial measure does not carried out the landslide may develop to each sides and caused more damage to the west slope and this mean that the operation of the mine will stopped.
The west slope of the open pit has N-NE direction, dipping to the east. The rocks which make up the west slope is mainly weathered claystone which also heavily jointed. Three sets of joint and several local faults are found in this area. These joints are nearly vertical with various orientation.
Factors which caused the instability of the west slope first the water condition both the groundwater and the surface runoff, especially in the heavy rainfall and the second is the slope angle and the slope height.
For analyzing the stability of the west slope, it was assumed that the materials which formed the slope is behaves like a soil, because of its weathering condition and the existence of the joints. Then methods of circular failure was used for the analysis.
Result of the analysis shown that the slope has a range value of shear strength which bounded by minimum and maximum value of shear strength.
The value of the Factor of Safety depends on the value of the shear strength used for the calculation and also have a range value of low to high according to the shear parameters used in the calculation.
From the analysis it was known that the stability of the whole slope is different form one place to another because of the differences in its degree of weathering and water condition.
Remedial measure should be done in two way, first to reduce the surface runoff and ground water table; second is to lower the slope angle. The combination of both method is more convenient considering the cost and available space. |
| Year | 1982 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Prinya Nutalaya |
| Examination Committee(s) | Tomiolo, Andrea ; Ohta, Hideki
|
| Scholarship Donor(s) | The Royal Netherland Government |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1982 |