2021 – Songkhla Beach @ Thailand
Result after 8 Months ( Aug 2021 – April 2022 )
- Total deposition volume : 6861 m³
- Total deposition area : 15,000 m²
- Max deposition height : 2 m
- Average deposition height : 70 cm – 140 cm
- The shoreline increased in width by : 11 m
- Total deposition volume : 8973 yd³
- Total deposition area : 161,458 ft²
- Max deposition height : 6 ft 7 in
- Average deposition height : 2 ft 3 in – 4 ft 6 in
- The shoreline increased in width by : 36 ft
Before & After Installation
Working together with Thai Wiring Systems, our partner in Thailand, we completed a demonstration project for Derosion Lattice in September 2021. The Marine Department of Thailand oversaw the project, with the intent to fix the “end effect” (or “terminal scour”) problem that occurs at the end of a rock revetment or seawall. Many coastlines in Thailand face severe erosion due to strong monsoon waves, and the end effect issue is present in different areas. In the next few months, precise measurements will be made to monitor the progress of sand accumulation after the installation of Derosion Lattice.
ReShore Technologies was happy to collaborate with Thai Wiring Systems, the Aquatic Resources Research Institute of Chulalongkorn University, and the College of Advanced Manufacturing Innovation of King Mongkut’s Institute of Technology Ladkrabang on this project. More data and pictures of the results achieved will be updated on our website throughout the next year.
Our project site in Songkhla, Thailand – the area indicated in yellow indicates severe “end effect” at the end of the rock revetment. The beach eroded so far that trees were being washed into the sea.
We began with clearing away the trees and debris in the installation area.
Placement of the assembled Derosion Lattice panel.
Working together as a team to secure the first panel.
Aerial view of the completed installation.
Rear view of the completed installation.
Side view of the completed installation.
Contour map comparison of local beach area before installation (Aug 2021), and 3 months after installation (Nov 2021). The shoreline clearly has been smoothed out into a straight line, and the slope is now gentle along the coast.
In the graph below, the blue line indicates the initial shoreline measured on August 11, 2021. The red line indicates the shoreline measured on November 20, 2021. The beach widened by an average of 10.46m in the 3-month period.
Below are survey results of the surrounding beach area, in the range of 300m x 50m next to the Derosion Lattice installation.
In the total area of 15,096 m², the total volume of sand accumulated is 6498 m³, and the average height increase is 43cm.
First survey August 11, 2021
Second survey November 20, 2020
Difference between 1st and 2nd survey
Below are survey results of the surrounding beach area, in the range of 300m x 40m next to the Derosion Lattice installation.
In the total area of 12,000 m², the total volume of sand accumulated is 6896m³, and the average height increase is 57.4cm.
First survey August 11, 2021
Third survey April 13, 2022
Difference in contour between 1st and 3rd survey (2022.04.13 minus 2021.08.11)
Beach profile measurements were taken for the 50m x 30m area around the installation. The different colored lines on the six profiles show steady increases in elevation, from 8/13/2021 (prior to installation in September), to 11/20/2021 (2 months after), 4/30/2022 (7 months after), and finally 5/20/2022 (8 months after).
Note: Some basin parts on the beach increased by 70cm to 140cm in sand depth. Overall the beach is now very even in elevation throughout the measured area.