HR Wallingford: Lab Testing for Dawlish Seawall Design

Image source: HR Wallingford

During the severe winter storm of February 2014, a section of the seawall at Dawlish collapsed, destroying part of the main railway line to Devon and Cornwall and urging government to announce funding for the seawall upgrade works.

Arup, who are designing the new seawall, have commissioned HR Wallingford to conduct physical modelling tests in the laboratory to verify the performance of the proposed design.

The works for Marine Parade will see the height of the sea wall increased by 2.5 meters and include a wave parapet. This will reduce the impact of the waves, reducing the volume of overtopping water and the likelihood of the line being closed during adverse weather.

Eunice Silva, Engineer in HR Wallingford’s Coastal Structures Group, said: “Using the results from Arup’s overtopping study, we will be carrying out a whole series of 2D tests over two months in a 40m long wave flume. This will involve constructing the bathymetry, calibrating the different sea states for the different bed levels, building a scaled model of the seawall design, and then carrying out tests for different crest level and storm conditions.”

The new seawall will also have more robust foundations to secure the underlying structure.

HR Wallingford’s laboratory testing is due to be concluded by the end of April, with work on the new seawall expected to start in spring 2019 and to be completed by 2021.

Share this article

Follow Dredging Today

Events>

<< Sep 2019 >>
MTWTFSS
26 27 28 29 30 31 1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 1 2 3 4 5 6

2019 Western Dredging Association Gulf Coast Chapter Annual Meeting

The meeting will provide a forum for the exchange of information of interest to the dredging industry and its associates.

read more >

Global Dredging Forum

2 day conference on the commercial activities of ports. How to meet the global demands of new vessels in an increasingly competitive market.

read more >

Eastern Chapter WEDA Fall 2019 Conference

Wednesday (10/16/19) afternoon will start the program with an opportunity to take the Dredging 101 course.

read more >

DREDGING FOR SUSTAINABLE INFRASTRUCTURE INDIA

At this 1-day conference, you will experience what it means to apply this new approach in practice.

read more >

Jobs>

Dredging jobs in Abu Dhabi at NMDC

National Marine Dredging Company “NMDC” aims to be the largest dredging player in the Arab’s Gulf region...

apply

Looking to fill a job opening?

By advertising your job here, on the homepage of DredgingToday.com, you'll reach countless professionals in the sector. For more information, click below....

apply

Looking to fill a job opening?

By advertising your job here, on the homepage of DredgingToday.com, you'll reach countless professionals in the sector. For more information, click below...

apply