STABILIZATION OF BEACH

HIGHWAY CD. DEL CARMEN-CHAMPOTON,

KM 46+000 - 46+500

 

 

General criteria for design

 

 

DEEP WATERS WAVE CLIMATE

 

According to WIS station 110

 

Hs < 1.0 mts

90.0%

Hs < 1.5 mts

97.5%

Tp < 9 seg

97.5%

Predominant wave approach

N-W 85.0%

Average wave Height

Oct - Apr: 0.7 mts

May - Ago: 0.3 mts

SEDIMENTS

 

Diameters

D84 = 0.65

D50 = 0.425

D16 = 0.25

 

Littoral Sediment Transport

 

No data

Coastline ver sensible to modification due sediment transport according to one year visual observation.

 

Global Direction of Sediment Transport

 

Very evident in direction NE-SE

 

 

 

BEACH GEOMETRICAL DESCRIPTION

 

Longitude of Project zone

450 mts

Longitude of very critical zone

50 - 100 mts

Bottom slope

1 - 2%

 

 

SUBMERGED BREAKWATERS  SOLUTION

(See figures 1 and 2)

 

Number of  structures

6

Rows of pallet ball units

3

Relation L/X

L/X >= 1  ;  critical zone L/X >= 2

Installation depth

Units will be installed at 1.0 mts depth at middle tide

Tides range

0.60 mts average. Units will be all time between 0.4 mts submerged and 0.2 emerged

Orientation

10-20 degrees to coastline parallel facing predominant wave direction

Covered length   (100 x SL) / 450

60% in predominant wave direction

 

 

 

 

 

 

 

 


 

 


Figure 1 Plan view

 

 


Figure 2: Typical cross section