ERU - 2009: Recent submissions

  • Voice based automated guided vehicle 
    Kumarawadu, SP; Yogalingam, G; Bandara, MADS; Wickramaarachchi, PK; Perera, ULAJD [Conference-Extended-Abstract]
    The objective in this research is to present Voice based control of vehicles as an alternative to conventional methods. This represents a great reduction in infrastructure cost and improves flexibility of the system. The ...
  • Swing leg kinematics for the bipedal walking robots 
    Abeyratne, MGAP; Welihinda, SM; Udawatta, L; Karunadasa, JP [Conference-Extended-Abstract]
    In this paper we demonstrate how the Robotic Technology theories are applied to solve the real world problem in bipedal walking of robots. Since there has been an increasing interest in bipedal locomotion, the modeling of ...
  • Design and fabrication of cable bolt for excavation in a fractured rock 
    Dhanawardana, YLC; Siriwardana, HDPM; Henderson, SH; Kumara, HMCP; Indika, KAS; Dharmaratne, PGR; Welideniya, HS; Rohitha, LPS [Conference-Extended-Abstract]
    Most often in fractured rock masses, large excavations have an unsupported stand-up times less than the minimum time required to support the roof after the excavation. During past few years a wide variety of dowels and ...
  • Review the guidelines of overlay design for flexible pavements 
    Karunarathne, AMAN; Mampearachchi, WK [Conference-Extended-Abstract]
    This primary objective of this research is to compare the overlay design guidelines and verify the feasibility of them on Sri Lankan road network. This is focus on overlay design procedures for the flexible pavements. The ...
  • Estimation of skin friction on bored and cast In-situ concrete Piles in sand 
    Mohotti, D; Thilakasiri, HS [Conference-Extended-Abstract]
    Bored and cast in-situ piles in Sri Lanka are design as end bearing piles and the skin friction contribution is generally I neglected. Results of the high strain dynamic load tests are presented to show that a significant ...
  • Evaluating suitability of soil stabilization methods for local road construction industry 
    Herath, HMSM; Kumara, MAW [Conference-Extended-Abstract]
    Soil stabilization is not using in local roads construction industry in major scale. Various reasons effects to non popularity and initial part this paper presents the result of questionnaire survey among the professionals ...
  • Study on gas transport and water retention in maharagama land fill cover soil 
    Ranasinghe, RHK; Nawagamuwa, UP; Kawamoto, K [Conference-Extended-Abstract]
    In Sri Lanka there are few controlled landfills available and usual procedure is covering the waste layer with a good toil as a final cover. The Soil gas diffusion coefficient (Dp) and Air Permeability (Kcl) govern the ...
  • Managing construction site material waste: web-based tool 
    Ekanayake, LL; Samarasinghe, DAS; Shamih, MSM; Jayakody, WHAJ [Conference-Extended-Abstract]
    Sri Lanka is a developing country which has considerable expanding infrastructure development projects. Hence, I construction industry generates lots of waste which cause a significant environmental and social impact. It ...
  • Assessment of the stormwater drainage engineering in expressway design a hydrologic and hydrodynamic analysis of colombo-katunayake expressway using hydrodynamic modelling 
    Soysa, VAN; Wijesekera, NTS [Conference-Extended-Abstract]
    Road designs need to forecast the hydrologic system performance in order to implement effective solutions for proper stormwater management. Field assessment and hydrologic analysis were carried out in Kalu Oya catchment ...
  • Faster and bouncier cricket pitches using locally available clays 
    Nawagamuwa, UP; Senanayake, AIMJ; Silva, SA; Sanjeewa, DMI [Conference-Extended-Abstract]
    Reasons for the lack of 'pace & bounce' in Sri Lankan pitches has been a topic of debate for a long time. In order to address this problem from an engineering perspective, soil samples from Test venue in Colombo were ...
  • Structural performance of reinforced cement stabilized earth masonry (CSEM) subjected by In-Plane lateral loads 
    Sanjeewa, YNN; Lewangamage, CS; Jayasinghe, MTR [Conference-Extended-Abstract]
    Various techniques have been developed to reinforce masonry structures and each of these methods has their pros and cons. The objective of the authors was to develop a method which is best suited for conditions prevailing ...
  • Review on flexible pavement design guidelines 
    Janaraj, T; Mampearachchi, WK [Conference-Extended-Abstract]
    The primary objective of this research is to identify the proper design guideline in terms of strength of the structure that enable to last longer life span. Field testing was conducted to check performance of selected ...
  • Development of a rational procedure for shear design in structural concrete 
    Sureshkumar, V; Weerasekera, IRA [Conference-Extended-Abstract]
    Shear design equations for reinforced concrete beams are mostly empirical and are based on test results. But some mathematical models have also been developed over the years. The pursuit for a better model which gives a ...
  • Nutrient enrichment in colombo flood detention area wetlands 
    Sharmili, S; Hettiararchchi, MN; De Alwis, AAP [Conference-Extended-Abstract]
    Wetlands often serve as nutrient sinks, Wetlands microorganisms and wetlands plants; serve as environmental filters by trapping impurities such as toxins and excessive nutrients as water flows through the wetlands system. ...
  • Prediction of flexural bond in reinforced concrete 
    Weerasekera, IAR; Rasikamal, AADI; Chandrasiri, JPS; Attanayake, RR [Conference-Extended-Abstract]
    A method to forecast bond stresses by accounting for tension transmitted across radial cracks is presented. This phenomenon is known as cohesive cracking. When steel and uncracked concrete are present they are treated as ...
  • Evaluation of shear design procedures for reinforced concrete beams without shear reinforcements 
    Wickramage, WKHRE; Weerasekera, IRA [Conference-Extended-Abstract]
    Many structural concrete beams have been constructed without transverse reinforcements. The main objective of this paper is to review design procedures for slender beams. Five major codes namely: ACI, CSA, BS, Australian, ...
  • Design of an industrial scale biofiltration system 
    Wijayawardhana, AJ; Wijekoon, SLJ; Walpolage, S; Amarasinghe, ADUS [Conference-Extended-Abstract]
    An industrial scale waste gas treatment system was designed and constructed at a Tobacco Processing Factory. The treatment system consisted of three units namely: condenser, scrubber and bio fdter, the latter acting as the ...
  • Full scale bio filter ammonia removal performance during filter maturation 
    Wijayawardhana, AJ; Wijeyekoon, SLJ; Walpalage, S; Amarasinghe, ADUS [Conference-Extended-Abstract]
    An industrial bio filter of 23 m3 in capacity, packed with a coconut fiber filter medium inoculated with compost of 12 m3 in volume was operated for a period of 45 days. Performance was monitored at gas flow rates of 1160 ...
  • Hydrodynamic modelling for stormwater management for river basin planning: a case study of welipenna river 
    Galhena, GAIRK; Wijesekera, NTS [Conference-Extended-Abstract]
    Storm induced flash floods are very common in southern part of Sri Lanka especially in South-Western monsoon. The I situation is more severe in Welipenna River, which faces around five major floods per annum. A model ...
  • Synthesis and characterization of stoving alkyd resin based on oil blend of karawila seed oil and coconut oil 
    Vitharana, DKB; Premachandra, JK; Amarasinghe, ADUS; Prashantha, MAB [Conference-Extended-Abstract]
    An alkyd/melamine resin mixture is the usual composition for the preparation of coating called Baking enamel or Stoving enamel cured through functional groups of the resin. This research focused on novel modified stoving ...