 |
 |
|
Soil Study of
Area Damage Due to Liquefaction during the 16 July 1990 Philippine Earthquake PART I INTRODUCTION Liquefaction was widespread in various parts of Northern Luzon during the recent 16 July 1990 Philippine Earthquake which registered a magnitude of 7.8 on the Richter scale. The Philippine government, through the Department of Environment and Natural Resources (DENR) and the Department of Science and Technology (DOST) is undertaking steps to mitigate the effects of future major earthquake not only in areas affected by the above mentioned event but also in other developed and liquefaction prone areas in the country. Part of that effort is the project study reported herein. The focus of this study is to collect reliable geotechnical data on some areas which suffered major liquefaction damage during the 1990 earthquake and to generate from these a database which can be readily accessed and processed by a database management system or DBMS to provide information pertinent to the aforementioned DENR master project. The present study covered liquefaction-damaged areas Dagupan City, Pangasinan; Agoo and Aringay in La Union, and the towns of Gerona and Pura in Tarlac. The widely used method of exploration by borings with standard penetration testing (SPT) was employed in conjunction with a procedure that is increasingly being used for liquefaction assessment - the Dutch Cone Penetration Test (CPT).
Send comments or suggestions to Webmaster |