Browsing by Author "Dissanayake, DMDOK"

Adaptation to future flooding in a lowland city - a case of Jakarta city

Kazama, S; Januriyadi, NF; Kure, K [Conference-Full-text]

Proceedings of ISERME 2020 ISERME 2020 104 Adaptation to Future Flooding in a Lowland City, - A Case of Jakarta City - *Kazama1 S, Januriyadi2 NF and Kure3 K 1Department of Civil and Environmental Engineering, Tohoku ...

Analysis of beachrock samples along Southern and Western coasts of Sri Lanka by spectroscopic methods

Edirisooriya, KVUI; Thilakarathna, MADP; Vijitha, T; Dassanayake, ABN; Jayawardena, CL [Conference-Full-text]

Beachrocks are sedimentary structures commonly observed where there is warm sea water in tropical and subtropical regions as a result of cementation by CaCCb of coastal sediments in the tidal zone. Comprehensive studies ...

Analysis of ground-borne vibrations due to piling operations and risk zonation

De Seram, PSPSW; Indika, LGV; Athapattu, AMHSM; Samaradivakara, GVI; Hemalal, PVA [Conference-Full-text]

Due to paucity of land for construction and the highest valuableness of lands in urban areas, construction activities are broadly carried out neighboring to existing buildings. Pile driving is the most common foundation ...

Analysis of Sri Lankan petroleum fiscal system - petroleum resources agreement - 2007

Jayamal, KC; Fernando, CR; Niroshan, WKD; Wickrama, MADMG [Conference-Full-text]

Economic structure of the World Oil and Gas Industry significantly differs from other industries due to the greater risk and uncertainties associated with the industry. Petroleum fiscal regime of a county defines the set ...

Analysis of the abundance of abandoned tanks in Hambantota District, Sri Lanka using GIS techniques

Senanayake, IP; Dissanayake, DMDOK; Puswewala, UGA [Article-Full-text]

Around two thirds of the area in Sri Lanka is covered by the dry zone, which receives less than 1750 mm average annual rainfall, but not equally distributed over the land. Due to rainfall variations, dry zone of Sri Lanka ...

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 ...

Applicability of tunnel muck as an alternative for fine aggregates in cement concrete

Ariyasena, HHS; Sampath, BA; Wickramasooriya, MDJP [Conference-Full-text]

One of the recent applications of Tunnel boring Machines (TBM) in Sri Lanka is Uma Oya Multipurpose Development Project (UOMDP). During rainy periods, the washed tunnel muck particles sediment in low agricultural lands ...

Application of hydrodynamics to assess coastal morphology to the north of Kelani River, Sri Lanka

Ishankha, WCA; Kahawala, KKHB; Sandushan, JAC; Hewavidana, SM; Silva, KBA; Ratnayake, NP [Conference-Full-text]

Studies on hydrodynamics are important since the hydrodynamic processes highly contribute to sediment transportation in the coastal regions. Erosion in Uswetakeiyawa coastal region of Sri Lanka has been a significant ...

Appraisal of electrode configuration characteristics in resistivity surveying

Kankanamge, BU; Chathuranga, SMS; Ruwanika, ILD; Palamure, PK; Abeysinghe, AMKB; Samaradivakara, GVI; Jayawardena, CL [Conference-Full-text]

Non-destructive subsurface exploration methods could reveal subterranean characteristics with minimal consumption of time and resources. However, validity of such interpretations could vary depending on the appropriate ...

An approach to delineate groundwater recharge potential sites in Ambalantota, Sri Lanka using GIS techniques

Senanayake, IP; Dissanayake, DMDOK; Mayadunna, BB; Weerasekera, WL [Article-Full-text]

The demand for fresh water in Hambantota District, Sri Lanka is rapidly increasing with the enormous amount of ongoing development projects in the region. Nevertheless, the district experiences periodic water stress ...

Assessment of rare earth element potential in intrusive rocks special reference to massenna zircon granite

Jayasuriya, JHAATS; Jayathilake, RGMA; Jeyakumar, J; Batapola, NM; Dushyantha, NP; Abeysinghe, AMKB; Premasiri, HMR [Conference-Full-text]

Sri Lanka has a geological setting that favors the presence of rare earth elements (REEs), which are currently identified as the most critical and strategic elements in the world. Previous geochemical studies show that ...

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 sedimentation capacity in Rantambe Reservoir using acoustic methods

Yasanga, SK; Udara, HMD; Dilantha, MGA; Rupasinghe, MGAR; Premasiri, HMR; Ratnayake, NP [Conference-Full-text]

Reservoir sedimentation is a major problem for dam safety, water security and productivity. So, regular monitoring and assessment of sedimentation rate performances are paramount. Rantambe reservoir with an initial gross ...

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 ...

Beachrock identification using geology and geophysical approaches in Indonesia

Daryono, LR; Nakashima, K; Kawasaki, S; Titisari, AD; Barianto, DH; Suyanto, I; Rahmadi, A [Conference-Full-text]

A unique carbonate rock developed naturally as a natural barrier presumably appropriate for advanced marine ecosystems including microbiotas in shorelines. A great deal of progress has been made in recent years to ...

Characterisation of coal fly ash for potential wastewater treatment opportunities

Pannilarathne, IE; Sandaruwan, MGL; Mathissan, P; Jayawardena, CL; Fernando, WAM [Conference-Full-text]

Lakvijaya coal power plant, which is in Norochcholai, Puttalam District, Sri Lanka, is the largest coal power plant in Sri Lanka. It annually produces about 150,000 tonnes of fly ash (FA) as waste, and the management of ...

Characterisation of sediment deposition of Bolgoda lake using acoustic and sampling methods

Jayasooriya, SPND; Fernando, SFRS; Priyantha, HNL; Vijitha, AVP; Premasiri, HMR; Samaradivakara, GVI [Conference-Full-text]

Bolgoda Lake is one of the main water resources in the western province, which has two major basins explained as Bolgoda south and north lakes. Lake sedimentation is a serious dilemma for water scarcity, productivity, ...

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 ...

A comparison of global rare earth element (REE) resources and their mineralogy with REE prospects in Sri Lanka

Batapola, NM; Dushyantha, NP; Premasiri, HMR; Abeysinghe, AMKB; Rohitha, LPS; Ratnayake, NP; Dissanayake, DMDOK; Ilankoon, IMSK; Dharmaratne, PGR [Article-Full-text]

Rare earth elements (REEs), a group of 17 elements comprises 15 lanthanides, scandium and yttrium, are largely attracting the world’s attention due to their importance in a wide variety of advanced technological applications. ...

Browsing by Author "Dissanayake, DMDOK"

Browsing by Author "Dissanayake, DMDOK"

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