ANALYSIS OF INCIDENCES OF COLLAPSED BUILDINGS IN LAGOS METROPOLIS, NIGERIA

Abstract

Building collapses in Lagos metropolis have become worrisome to residents, developers, and Government. This study examined the incidences of collapsed buildings in Lagos metropolis over a thirty‐year period. Time series analysis was carried out to determine the past and predict direction of the future occurrences. In addition, a process of inference from reports on investigations of past occurrences was adopted to establish causes of building collapses in the study area. Spatial analysis of the collapses showed high concentration in swampy terrain that was reclaimed in the past. The study recommends, amongst other things, comprehensive investigation of the geophysical characteristics of the affected locations towards finding lasting solution to the menace. Santruka Lagose griūvantys pastatai kelia nerima gyventojams, vystytojams ir vyriausybei. Šiame tyrime nagrinejamas pastatu griuvumo dažnumas Lagose per trisdešimt metu. Atlikta laiko eilučiu analize, siekiant nustatyti buvusius atvejus ir numatyti būsimu atveju tendencijas. Be to, siekiant nustatyti, del kokiu priežasčiu tiriamoje teritorijoje griūva pastatai, buvo pasirinktas išvadu procesas, pagristas ankstesniu atveju tyrimo ataskaitomis. Erdvine griuvimu analize parode didele koncentracija pelketose vietovese, kurios anksčiau buvo melioruotos. Be kitu dalyku, tyrime rekomenduojama atlikti išsamu paveiktu vietoviu geofiziniu savybiu tyrima, siekiant rasti ilgalaiki sprendima, kaip išvengti šios gresmes.