"T. Pipatpongsa,S. Thay,Thanachote Techawongsakorn,N. Mungpayabal","Basic consideration of using hollow plaster cylinders for indicating the axis of major principal stress in soft rock surface","The 5th Thailand-Japan International Academic Conference 2012 (5th TJIA 2012)","Proceedings of the 5th Thailand-Japan International Academic Conference 2012 (5th TJIA 2012)",,,,"pp. 49-50",2012,Oct.
"T. Matsushita,T. Pipatpongsa,N. Mungpayabal,P. Wattanachai","Possible use of hollow plaster cylinders for indicating the axis of major principal stress in soft rock surface","The 47th Japan National Conference on Geotechnical Engineering","Proceedings of the 47th Japan National Conference on Geotechnical Engineering","Japanese Geotechnical Society",,,"pp. 853-854",2012,July
"Rewadee Wangsa,J. Wongsiriworakul,N. Mungpayabal,T. Pipatpongsa,P. Wattanachai","Residual shear strength of Mae Moh clay seam measured by multiple reversal direct shear box test under constant load","The 17th National Convention on Civil Engineering","Proceedings of the 17th National Convention on Civil Engineering (NCCE17)","Engineering Institute of Thailand","  CD-ROM","  GTE012","page 1-10",2012,May
"T. Pipatpongsa,S. Heng,S. Likitlersuang,N. Mungpayabal,H. Ohta","Investigation of mechanical properties of clay seam in bedding shears of the Mae Moh open-pit mine of Thailand","International Conference on Advances in Geotechnical Engineering  (ICAGE 2011)","Proceedings of the International Conference on Advances in Geotechnical Engineering (ICAGE 2011)",,,,"pp. 209-214",2011,Nov.
"S. Heng,T. Pipatpongsa,N. Mungpayabal,H. Ohta","Shear strength parameters of clay seam in the Mae Moh open-pit mine of Thailand","Geo-Kanto 2010","Proceedings of Geo-Kanto2010",,,,"pp. 10-13",2010,Nov.
"S. Heng,T. Pipatpongsa,Noppadon Mungpayabal,H. Ohta","Basic parameters of clay seam in a bedding shear zone of the Mae Moh open-pit mine of Thailand","The 12th JSCE International Summer Symposium","Proceedings of the 12th International Summer Symposium","Japan Society of Civil Engineers",,,"pp. 175-178",2010,Sept.
"T. Pipatpongsa,S. Heng,Prajuab Doncommul,Noppadon Mungpayabal,PITIWAT WATTANACHAI","Shear strength parameters of clay seam placed between underburden layers of rock masses in the Mae Moh open-pit mine","The 15th National Convention on Civil Engineering, Thailand",,"Engineering Institute of Thailand",,"  GTE61","  CD-ROM",2010,May