HULHULE-MALE’ BRIDGE PROJECT

EIA for the proposed Hulhule-Male’ Bridge Project
List of Figures
Figure 1.1: Study Area boundary .................................................................................................... 5
Figure 1.2: Schematic diagram of the measurement method .......................................................... 6
Figure 2.1: Location map of proposed bridge and worksites....................................................... 13
Figure 2.2: Locality map showing sensitive environments and marine protected areas .............. 14
Figure 2.3: Proposed site plan (Reduced Version) ....................................................................... 15
Figure 2.3a: Project foot print and Potential Affected Areas at bridge site .................................. 16
Figure 2.3b: Project foot print and Potential Affected Areas at borrow site ................................ 17
Figure 2.5 Typical Cross-section of the Bridge ............................................................................ 18
Figure 2.6: Standard Cross-section of Concrete Box Girder of Main Bridge .............................. 19
Figure 2.7: Standard cross-section of the approach bridge ........................................................... 20
Figure 2.8 Standard Cross-section of Subgrade ............................................................................ 20
Figure 2.9: Cross section Diagram of Approach Embankment .................................................... 22
Figure 2.10: Schematic Diagram for Plane Layout of Precast yard on Hulhumale Island ........... 23
Figure 2.11: Layout of Construction Site on Male’ Island ........................................................... 24
Figure 2.12 Schematic Diagram for Plane Layout of Construction Site on Airport Island .......... 25
Figure 2.13: Schematic Diagram for Main Control Conditions on Topography and Land Features
for the Bridge ................................................................................................................................ 26
Figure 2.14: Integral Steel Casing Platform and Bottom Steel Cofferdam Structure Diagram .... 28
Figure 2.15: Process Flow Diagram for Construction Technology of Integral Steel Casing
Platform + Bottom Steel Cofferdam ............................................................................................. 29
Figure 2.16 Self-elevating mobile platform .................................................................................. 32
Figure 4.1: Monthly Frequencies of Wind Direction in Central Maldives based on National
Meteorological Center 10 year Data (adapted from Naseer, 2003). ............................................. 56
Figure 4.2: 24 Year Wind Frequency Recorded at National Meteorological Center. .................. 56
Figure 4.3: Mean Daily Wind Speed and Direction Recorded at National Meteorological Centre
(1978 – 2004) ................................................................................................................................ 57
Figure 4.4: Mean Monthly Rainfall in Hulhule’ (1975-2004)...................................................... 58
Figure 4.5: Maximum daily rainfall by year in Hulhule’ (1975-2005) - (Source: Hay, 2006) ..... 58
Figure 4.6: Maximum Temperature by year in Hulhule’- 1975-2005 (Source: Hay, 2006) ........ 59
Figure 4.7: Picture of coast and tide in bridge location ................................................................ 61
Figure 4.8: Rising and falling field during spring tide.................................................................. 61
Figure 4.9: Flow direction process of mean flow speed for layered and vertical line at 1 # survey
point .............................................................................................................................................. 66
Figure 4.10: Flow direction process of mean flow speed for layered and vertical line at #2
survey point ................................................................................................................................... 66
Figure 4.11: Estimated wave patterns aorund Gaadhoo Koa ........................................................ 68
Prepared by: CDE Consulting & China Shipping Environment Technology
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