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Browsing Research Publications by Author "Chaminda, SP"

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Alternative for river sand

Ekanayaka, EMTM; Jayawardene, MN; Kannangara, KKDM; Puswewala, UGA; Rathnayake, NP; Chaminda, SP; Vijitha, AVP [Conference-Full-text]

The need of finding an alternative for river sand arises due to the over exploitation of river sand and its various harmful consequences. The focus of the current study was on offshore sand, which is clearly one of the ...
Analysis of effect on vibration and air blast in rock quarrying

Senadeera, SMADSI; Erangika, MD; Herath, MHBCW; Wickramasmghe, WIUS; Chaminda, SP; Dharmaratne PGR [Conference-Full-text]

Blasting induced ground vibration occurring in the quarries has ecome a serious environmental issue in Sri Lanka. To achieve high production targets the number of blasts has increased in the quarries and, therefore, ...
Analysis of efficiency and impact by deck charging patterns on rock blasting at Aruwakkalu Limestone Quarry, Sri Lanka

Surangani, RKH; Shanthilal, S; Sandaruwan, DLCD; Chaminda, SP; Samarakoon, KGAU; Senarathna, TMB [Conference-Full-text]

There is a potential to enhance both the efficiency and the quantity of explosives in limestone excavation utilising deck charge patterns in the Aruwakkalu limestone quarry in Sri Lanka. To achieve this a series of ...
Analysis of physical and mineralogical properties of aggregate on strength and durability of asphalt concrete

Lakshan, LPS; De Silva, SHSN; Kapilaratne, RDMCLB; Chaminda, SP; Jayawardena, CL [Conference-Full-text]

Asphalt is made by mixing aggregates, filler and binder materials together according to pre-determined ratios. Out of the total asphalt weight, 94% to 95% consists of aggregate. It is not surprising that the performance ...
Analysis of topographic effects on tea yield in Sri Lankan tea estates using geomatics

Randima, KAC; Malinga, DIGS; Kalpana, TMJ; Chaminda, SP [Conference-Abstract]

This research paper investigates the potential impact of hill shade on tea yield at the Dambatenne tea estate using unmanned aerial vehicles (UAVs). Drones were used to take high-resolution aerial photos of the location ...
Analyzing the seasonal variation of groundwater characteristics in the Attanagalu Oya basin

Athukorala, DRM; Kohilan, C; Danushka, U; Jayarathna, WHDP; Chaminda, SP; Dassanayake, ABN; Hewavidana, SM [Conference-Full-text]

Gampaha district which has the second largest population in the country consists of many industrial establishments and residential areas. Attanagalu Oya Basin which almost entirely the Gampaha district is a major hydrologic ...
analyzing the temporal variation of groundwater level in Attanagalu oya basin using numerical models

Vinu, I; Udayanga, RMK; Chaminda, SP; Dassanayake, ABN [Conference-Full-text]

Scarcity for drinking water becomes one of the enormous threats around the world due to the increase in population, climatic fluctuation and pollution. Sri Lanka is considered as a country with little or no water scarcity ...
Application of remote sensing and GIS techniques for exploring construction material from inaccessible terrains; case study in Eastern Province of Sri Lanka

Premasiri, HMR; Colombage, HCDP; Palamakumbure, D; Kodippili, TKA; Wickramasekara, KT; Abeysinghe, AMKB; Chaminda, SP [Conference-Full-text]

Demand for construction materials in the North and Eastern provinces of Sri Lanka has risen significantly due to accelerated construction work in progress to restore the destroyed infrastructures during the civil war. ...
Assessment of rehabilitation options for environmental impacts of abandoned mines

Kavirathne, SR; Udayanga, RI; Keerthi, T; Gunawardana, ADTJ; Chaminda, SP; Jayawardena, CL [Conference-Full-text]

The quarries which are abandoned ceasing operations without a proper closure plan cause negative impacts on the environment and also risk for the health and safety of society and the economy. This research focused on the ...
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 ...
Assessment of the effect of Aruwakkalu waste dump on surrounding water resources

Chirantha, D; Herath, HMDK; Chandrapala, HMNI; Chaminda, SP; Dassanayake, ABN; Jayawardena, CL [Conference-Full-text]

In developing countries like Sri Lanka, waste management is a vital necessity. Solid waste dumps play a major role in handling waste in most countries. These solid waste dumps can cause severe environmental pollution via ...
Characterization of tsunami wave using texture & structure of sediments from South Western coast of Sri Lanka

De Silva, RHSI; Jeyram, P; Perera, RSL; Thananchayan, A; Wickramanayake, NU; Rathnayake, NP; Premasiri, HMR; Abesinghe, AMKB; Puswewala, UGA [Conference-Full-text]

This research focuses on characterization of Tsunami waves by using tsunami sediments, as the only reliable source of information which a Tsunami leaves after strike are sediments. The sediments contain information about ...
Comparative analysis of water hyacinth dynamics in North Bolgoda Lake, Sri Lanka: a classification based on high-resolution aerial imagery and satellite-imagery

Dawalagala, HS; Radampola, A; Gowsigan, PT; Chaminda, SP; Dassanayake, SM; Jayawardena, CL [Conference-Abstract]

Water hyacinth (WH) is an invasive aquatic plant that has established its presence in tropical and subtropical regions around the globe. Its widespread existence has resulted in societal, economic, and ecological impacts ...
Correlations between durability, mineralogy and strength properties of limestone

Senarathna, TMB; Janith, SHMPK; Dassanayake, ABN; Chaminda, SP; Jayawardena, CL [Conference-Full-text]

Durability is used to depict the obstruction of rock to weathering and the pace of events of such changes. Wetting and drying cycles cause evaluation of physical changes and slaking behaviour of rocks, and that can be ...
Critical evaluation of industrial mineral mining methods in Sri Lanka

Jeewandara, JTP; Senarathna, MKT; Wickramarathna, CH; Sirisena, KMW; Hemalal, PVA; Lasantha, MML; Dharmaratne, PGR; Chaminda, SP; Jayawardena, CL [Conference-Full-text]

Sri Lanka is rich in industrial minerals, including graphite, apatite, ilmenite, rutile, quartz, feldspar, kaolin, apatite, garnet sand, mica, calcite, and dolomite. Even though lots of mining methods are used to extract ...
Delineation of potential sites for gemstone mining in Kura Ganga catchment, Ratnapura: a GIS approach

Jaliya, RGC; Thotahewa, AHTTB; Palihakkara, CR; Siriwardena, PRR; Premasiri, HMR; Dharmaratne, PGR; Chaminda, SP; Senanayake, IP [Conference-Full-text]

Sri Lanka has been known as 'Ratnadeepa', which translates to 'Island of gems' because of the precious natural gemstones found in its gravelly soil. Even though the gem industry in Sri Lanka extends back to ancient times, ...
Demarcation of potential sites for construction material using RS and GIS techniques in Eastern Province, Sri Lanka

Palamaumbure, D; Colombage, HDP; Kodippili, TKA; Wickramasekara, KT; Premasiri, HMR; Abeysinghe, AMKB; Chaminda, SP; Dissanayake, DMDOK [Conference-Full-text]

Demand for construction materials in the Eastern province of Sri Lanka has risen significantly due to accelerated construction work in progress to restore the destroyed infrastructures during the civil war. Ground ...
Designing suitable mining method and processing plant for Kukurampola magnetite ore body

Amarasekera, HM; Sajirupan, S; Senanayake, IP; Sirisoma, RHANC; Chaminda, SP; Rohitha, LPS; Welideniya, HS [Conference-Full-text]

Evaluation of mining methods for the exploitation of Kukurampola ore body is considered in this report. Minerals take millions of years to form, but exploitation takes only few decades. Therefore, mineral deposit is a ...
Determination of depleted rock volume in open cast mines using photogrammetric techniques for the purpose of royalty calculation

Ariyarathne, RCDK; Samaraweera, SACV; Maduwantha, LSE; Insaf, MJM; Hemalal, PVA; Illankoon, IMTN; Dharmaratne, PGR; Chaminda, SP; Lasantha, MML [Conference-Full-text]

In Sri Lanka, Geological Survey and Mines Bureau (GSMB) imposed royalty levy for aggregate production volume using an equation (indirect method) which utilises the quantity of explosives for the calculation. Since the ...
Determination of soil overburden on Panirendawa iron ore deposit for selection of appropriate mining method/s

Jayathilaka, BRPM; Perera, MSR; Jayasekara, DAIA; Liyanawaduge, CY; Abeysinghe, AMKB; Premasiri, HMR; Chaminda, SP [Conference-Full-text]

Panirendawa iron deposit consists of four isolated deposits namely A, B, C and D. The deposit D has potentially high magnetite concentration according to previous data. The main objective of the study is to carry out an ...

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Browsing Research Publications by Author "Chaminda, SP"

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