03046cam a2200253   450000500170000000800410001703500150005810000210007324500810009426000520017530000140022749000270024150001350026850200580040352019820046165000160244365000370245970000370249670000500253370000420258371000430262581000590266885600650272720260819085238.0191198s1994    th      r    0000|0 eng d  a.b107444960 aNguyen Huy Uy Vu10aTriaxial test on compacted weathered clay reinforced by nonwoven geotextiles  aBangkok :bAsian Institute of Technology,c1994  a83 leaves1 aThesis ;vno. GT-93-11  aA thesis submitted in partial fulfilment of the requirement  for the degree of Master of Engineering, School of Civil Engineering   aThesis (M.Eng.) - Asian Institute of Technology, 1994  aThis study is concerned with the laboratory properties of compacted Bangkok clay  reinforced by nonwoven geotextiles. Two type of geotextiles, namely, Polyfelt TS420 and TS700  have been invei;tigR1.ed. Three series of 1.riaxial teR1.s on 4 inches diameter samples with and  without reinforcement  have been conducted. One series of CH J tests on wet specimen  compacted at 29% moisture content. The other two series were UU tests on partly saturated  samples compacted at wet and dry side of optimum with the moisture content of 29% and 2 1 %,  respectively. All specimens were prepared at 95% of standard Proctor compaction.  It was observed from this study that most of the failure envelopes in both types of tests,  UU and CTU, of the reinforced Ramp lei; almost paralleled hut higher to that of the corresponding  unreinforced one with the enhancement  of the apparent cohesion intercept. This implied that the  geotextiles were stretching during shear. For stiffer geotextile, TS700, at 2 and 1 layers of  reinforcements, both friction angle and apparent. cohesion increased although only slightly for  friction angle. The strength ratio, R, increased with increasing of stiffeners and number of layers  of the fabric in all types of tests. The strength ratio of t.5 and 2 were obtained from UU tests.  on wet samples reinforced by 3 layers of TS420 and TS700, respectively. The moisture content  at compaction also affected significantly on the strength ratio in UU tests. The wet samples  yielded the much higher values of R in comparison t o that of the dry one. For wet specimens  compacted at the same moisture content, the CHJ tests gave lower value of R in comparison with  UU tests. This is because of the fact that the non-woven geotextile increased the shear strength  of the reinforced soil not only by the induced shear resistance caused by the internal  reinforcement inclusions hut also hytl1e local drainage in to the geotextile from the surrounding  soil.10aGeotextiles10aClayxThailandxBangkokxTesting1 aBergado, Dennes T.,eChairperson1 aBalasubramaniam, A.S.,eExamination Committee1 aSugimoto, M., eExamination Committee2 aThai's Government, eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. GT-93-11  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B15925