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Performance of unpaved road with different soft clay reinforcement

Mat Nor, Ahmad Hakimi (2013) Performance of unpaved road with different soft clay reinforcement. Other thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

This research, in general, aim to evaluate the performance of full-scale unpaved road on bamboo geotextile composite reinforced soft clay (unpaved road BGC) and high strength geotextile reinforced soft clay (unpaved road HSG), compared to the unpaved constructed on un-reinforced soft clay (unpaved road UR). The soft soil is natural poor in strength but high in compressibility and cannot support heavy load such as building and dynamic load from heavy vehicle. This condition can be a problem to people for transporting agriculture products. The objective of this research to determine the effect on settlement and pore water pressure with partial removal of surcharge, to determine and compare the dynamic load effect on ground condition of reinforced with high strength geotextile and bamboo-geotextile composite. The full-scale unpaved road constructed at RECESS. Three sections of road consist of bamboo-geotextile reinforced, high strength geotextile reinforced and unreinforced (control) was constructed and each section is 10 m length and 16 m width with 5 m length of buffer zones separating each section. The dynamic load from truck has been applied on each section and the installed instrumentation has been measure data for studying the effects of distribution dynamic load on rural road. The instrumentations that were installed at study location are inclinometers, piezometers, and hydrostatic profilers in order to monitor road performance. Effects of dynamic load has been monitored in 2 parts i.e. first part is before applied dynamic load, second part is after applied dynamic load. The four conclusions of this research are effect of partial removal of surcharge on embankment the reverse consolidation of soil has been occurs, the HSG rebound about lo%, BGC rebound about 11% and UR rebound about 8%, reverse consolidation occurs at negative excess pore water pressure, Settlement difference at maximum of passes for BGC compared to UR is a 23% lower than UR. While settlement differences HSG was 26% lower than the UR, Lateral movement different at BGC compare to UR which about 24% lower than UR. While for HSG has 38% lower than UR, Excess pore water pressure different at 3 meter depth at BGC compare to UR which about 23% lower than UR.While for HSG has 73% lower than UR. This means that the settlement, lateral movement and pore water pressure at the HSG is smaller than the other soil reinforcement.

Item Type: Thesis (Other)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Divisions: Centre of Diploma Studies > Department of Civil Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 19 Jun 2014 06:32
Last Modified: 19 Jun 2014 06:32
URI: http://eprints.uthm.edu.my/id/eprint/5592
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