Environmental Geospatial Solution EGS Engineering Geological Survey and
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Environmental & Geospatial Solution (EGS) Engineering Geological Survey and Related Others Work in Rural Parts of MSDP Project Area Presented by Fansab Mustahid Coordinator Environmental & Geospatial Solution (EGS) 1/3/2022
Purpose of the Geological Work v. Determine subsurface soil condition of the project area. For example soft, dense or stiff soil. v. Identify Subsurface layer up to depth 30 m. v. Seismic Hazards Assessment. 1/3/2022
Methodology Seismic wave Down-hole Seismic Test (PS Logging) Geophysical Multi-channel Analysis of Surface Wave (MASW) Microtremor Survey Geotechnical Standard Penetration Test (SPT) 1/3/2022
Geophysical & Geotechnical Data Acquisition in Field SL Survey/ Test Name No. 1 Down-hole Seismic test (PS Logging) 2 Multi-Channel Analysis of Surface Wave (MASW) 3 Single Microtremor Survey 4 Microtremor Array 5 Standard Penetration Test (SPT) Numbers of Test 15 25 40 4 70 1/3/2022
PS Logging Test Microtremor Test MASW Standard Penetration Test 1/3/2022
All Test Locations 1/3/2022
PS Logging Test Result Test ID : PS-Akua-09 Location : Modhobarra, Akua Lat- 24° 43'32. 006"N Long- 90° 22'56. 175"E AVS 30 199 m/s 1/3/2022
MASW Survey Result AVS 30 252. 4 m/s 1/3/2022
Single Microtremor Survey Result Survey Id : MT 18 Location : Morolpara, Akua Lat- 24° 44'37. 3"N Long- 90° 23‘ 38. 3"E Result: Peak Amplitude: 1. 88 Peak Period: 0. 79 sec 1/3/2022
Output: Engineering Geological Map Base on AVS 30 1/3/2022
Preparing Hazard Map MSDP Project Area 1/3/2022
Necessary Data for preparing Hazard Map �Previous Earthquake History ( Last 100 years). �Fault Mechanism and identifying earthquake source zone. �Source to site distance. �Description of the local site conditions 1/3/2022
Previous Earthquake History ( Last 100 years). Fault Mechanism and identifying earthquake source zone. Source to site distance. Description of the local site conditions Source: US Geological Survey(USGS) International seismological Centre (ISC) Bangladesh Meteorological Dept. 1/3/2022 (BMD)
Previous Earthquake History ( Last 100 years). Fault Mechanism and identifying earthquake source zone. Source to site distance. Description of the local site conditions Source: CDMP report Seismic Hazard Assessment of Dhk, Chg, Syl. 2009. 1/3/2022 CDMP report Active tectonic
Previous Earthquake History ( Last 100 years). Fault Mechanism and identifying earthquake source zone. Source to site distance. Description of the local site conditions 35 km Dauki Fault 95 km (Appx. ) PBF 2 1/3/2022
Previous Earthquake History ( Last 100 years). Fault Mechanism and identifying earthquake source zone. Source to site distance. Description of the local site conditions 1/3/2022
Finally Integrated all those Primary and secondary Data by using GIS , Rockwork and Crisis 2007 Software, we will get seismic hazard map of the project area. Example: 1/3/2022
Thank You All 1/3/2022