Performance of sand drains at Tha Chang bridge

AuthorCiridon, William A.
Call NumberAIT Thesis no. 376
Subject(s)Sand drains
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand.
PublisherAsian Institute of Technology
AbstractThe research project reported herein was conducted to study effectiveness of the sand drains installed at Tha Chang Bridge in accelerating the rate of pore pressure dissipation and also the rate of settlement under embankment loadings . Four test embankment. boxes 6_m square were constructed along the approach road area, Two were constructed within the sand drain area and two were constructed outside the sand drain area. Loading was accomplished by filling the wooden boxes with sand to a height of 3 m, the density being controlled at 1.92 ton/cu. m. Three of the test embankments, two within the sand drain area and one outside the sand drain area were all constructed to a height of 3 m within a 14 hour period and the fourth test area outside the drains was constructed in three 1.0 m increment at intervals of 2 days. Piezometers and settlement points were installed, prior to loading, beneath each test area at various depths . The data obtained were then compared with the values predicted theoretically. The results indicated that the sand drains had the desired effect, i.e. increasing the rate of pore pressure dissipation and the rate of settlement.
Year1972
TypeThesis
SchoolStudent Research Before 1980
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Nelson, John D.
Examination Committee(s)Brand, E.W. ;Moh, Za-Chieh
Scholarship Donor(s)Canadian Government
DegreeThesis (M. Eng.) - Asian Institute of Technology, 1972


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