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Browsing International Symposium on Earth Resources Management and Environment by Year

Browsing International Symposium on Earth Resources Management and Environment by Year "2017"

Now showing items 1-20 of 35

Applicability of ground penetration radar (GPR) technique to optimize soil Nail Wall designs

Lasan, HLI; Weerasekara, MN; Prashanth, S; Abeysinghe, AMKB; Premasiri, HMR; Samaradivakara, GVI [Conference-Full-text]

Soil nailing is used to stabilize existing natural slopes or excavations using soil reinforcement technique. Due to lack of information on ground profiles and thickness of soil layers, the required soil nail lengths cannot ...
Applicability of pre-heating techniques for recovery of garnet from garnet biotite gneiss

Jayakodi, JDSU; Weliwita, BY; Nishanthan, SS; Samaradivakara, GVI; Abeysinghe, AMKB; Rohitha, LPS; Vijitha, AVP [Conference-Full-text]

In mineral processing industry, the highest energy is consumed by crushing and grinding operations. However, if we can initiate micro cracks in the hard rock pieces in advance, we should be able to reduce the crushing ...
Application of emulsion explosive and comparative study on water-gel explosives for rock quarrying in Sri Lanka

Dharmaratne, PGR; Hemalal, PVA; Rohitha, LPS; Herath, B [Conference Full-text]

Dynamite has been the premier and the only high explosive used for mining and construction activities in Sri Lanka for a long period of time. Negative environmental impacts, effect on health and security hazards led to ...
Assessment of seasonal impacts on groundwater quantity and quality in upstream of Malwathu Oya Basin

Madhushankha, JML; Madhuwan, ARB; Menan, P; Chaminda, SP; Abeysinghe, AMKB; Jayawardena, CL [Conference Full-text]

Malwathu Oya Basin which covers 2350km2 located in Anuradhapura district is considerably populated and the safety and the available quantity of water is crucial for the people. Water samples were collected from selected ...
Bioremediation of lead-contaminated mine waste using microbially Induced carbonate precipitation

Mwandira, W; Nakashima, K; Kawasaki, S [Conference Full-text]

The aim of this study was to use microbially induced calcium carbonate precipitation (MICP) technique to bioremediate lead using bacterium Pararhodobacter sp. Laboratory scale experiments conducted, achieved complete ...
Characteristics studies on engineering properties of river sand substitutes for conventional concrete and mortar works

Withanage, AK; Sugathadasa, AGMRP; Mithushan, T; Dissanayake, D; Rohitha, LPS [Conference Full-text]

The main sand source of construction industry in Sri Lanka is river sand. However, being a developing country, the demand for river sand increases gradually. Based on engineering computations, sand demand for 2013 was ...
Critical evaluation of current environmental comfort conditions of Bogala underground

Lasantha, MML; Thushath, T; Somarathne, KGMS; Hemalal, PVA; Dharmaratne, PGR [Conference Full-text]

Ventilation is a basic part of all underground mine operations as fresh, cool air is required to remove stale, affected air from the workings. The inadequate ventilation often is the cause of lower worker efficiency leading ...
Demand estimating model to forecast the building material requirements for the construction and allied industries in Sri Lanka

Maduranga, WWDD; Nithushan, N; Jayasinghe, JKSN; Dissanayake, DMDOK [Conference Full-text]

Over the past few years, there has been a high level of interest in modelling demand estimation for the construction and allied industries in Sri Lanka. Demand estimation is a process that involves coming up with an estimate ...
Developing relationships among grindability, chemical composition and particle size of raw material mix at Aruwakkalu Limestone for Cement Production

Mendis, BSM; Jayathunga, THGS; Madurapperuma, HH; Rohitha, LPS; Dharmarathne, PGR; Hemalal, PVA [Conference Full-text]

In this research study, the relationship among chemical constituents (SiO2, Al2O3, Fe2O3, CaO, MgO, Cl-, SO3, Na2O and K2O) and raw meal grindability are investigated on raw meal samples taken from the output of ball mill. ...
Development of a methodology to map railway lines and surrounding land use using UAVs

Manatunga, UI; Munasinghe, N; Premasiri, HMR [Conference Full-text]

High accurate railway maps and terrain information (Digital Elevation Models) is a major concern for future railway constructions and railway lines development.The mapping of railway line using ground based surveying ...
Diamond core drilling for narrow vein graphite exploration - as practiced at Bogala Mines, Sri Lanka (A Case Study)

Ekanayake, EMKB [Conference Full-text]

The vein type graphite deposits which are rich in carbon found in Sri Lanka occur in metamorphic rocks as narrow steeply dipping veins. In Sri Lanka, generally these graphite deposits are explored by diamond core drilling ...
Dynamics of the Madu-Ganga Estuary

De Silva, UHNH; Somasiri, RBHP; Jayasekara, NNL; Ratnayake, AS; Dushyantha, N; Weththasinghe, SM; Samaradivakara, GVI; Vijitha, AVP; Ratnayake, NP [Conference Full-text]

Among the estuaries in Sri Lanka, Madu-Ganga Estuary plays a significant role to generate a massive income through tourism. The existing tropical ecosystem attracts the tourists. However, this ecosystem faces problems of ...
Effect of organic bio-polymer on bio-mineralization of CaCO3

Nawarathna, THK; Nakashima, K; Kawasaki, S [Conference Full-text]

Organic matrix in the biogenic CaCO3 has a significant influence on the CaCO3 crystal growth, its polymorphs and morphology. In this research, effect of the cationic and anionic organic bio-polymers on the crystallization ...
Effect of physical and mineralogical properties of aggregates on strength and durability of asphalt concrete

Bastion, PGS; Chandrapala, SWTD; Rangana, KHVG; Chaminda, SP; Jayawardena, CL; Premasiri, HMR [Conference Full-text]

Asphalt is a mixture of aggregates, binder and filler. The performance of an asphalt matrix mainly depends on the characteristics of its constituents along with the quality of construction process. As 94-95 percent of the ...
Effect of trenching on bast-Induced ground vibration in Sri Lankan metal quarries

Samarakkody, SATI; Dharmaratne, PGR; Hemalal, PVA; Premasiri, HMR [Conference Full-text]

Problems due to ground vibration are a matter of serious concern for the users of explosives, as it is not possible to eliminate vibration totally or to contain them at the source. Efforts need to be made in controlling ...
Effectiveness of emulsion explosives in quarrying in high grade metamorphic rocks in Sri Lanka

Weerawarnkula, S; Hemalal, PVA; Pathirana, KPR [Conference Full-text]

The optimization of explosive usage in Sri Lankan metamorphic rock is the main objective of this research. Sonic velocity of the rock is a reliable indicator of its structural integrity and resistance to fragmentation. ...
Effects of metal ions on flotation of Sulfide minerals

Mayumi, I; Atsuhiro, T; Tatsuya, S; Tsuyoshi, H; Carlito, BT; Naoki, H [Conference Full-text]

Flotation is a mineral processing method that using deference of Hydrophilicity/hydrophobicity. In flotation, air bubbles are induced to the slurry that contains ground ore and water. Hydrophobic minerals are attached to ...
Fluctuations in groundwater level and corresponding earth resistivity changes

Chandrasena, RTPIU; Madushanka, GHSP; Amalan, K; Samaradivakara, GVI; Chaminda, SP; Jayawardena, CL [Conference Full-text]

The earth resistivity at a known location was frequently measured, through resistivity sounding. Resistivity of subsurface layers could be influenced by the permeability, porosity, transmissivity, composition etc., where ...
Geochemical aspects of Calcite and Dolomite deposits around Rajawaka off Balangoda, Sri Lanka, and suitability for industry

Liyanage, WLDNK; Ranasinghe, GHPGKM; Yapa, SKSP; Weerawarnakula, S; Premasiri, HMR; Abeysinghe, AMKB [Conference Full-text]

Major calcite and dolomite occurrences are found in Rajawaka off Balangoda in Sri Lanka. The area is undertaken by Precambrian marble rock which is one of the most common sources of calcite and dolomite in Sri Lanka. Field ...
Ground penetration radar obseravtions at Kahagolla Landslide and evaluation of potential failure mechanism

Dissanayake, SW; Pathirana, GPNA; Sandaruwan, MKS; Abeysinghe, AMKB; Premasiri, HMR; Weerawarnakula, S [Conference Full-text]

The term landslide is used to describe a wide variety of processes that result in the perceptible downward and outward movement of soil, rock and vegetation under gravitational influence. The material may move by falling, ...

Now showing items 1-20 of 35

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Browsing International Symposium on Earth Resources Management and Environment by Year "2017"

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