GEO-Fabrics-COL-Logo-155x45.png (1)

Geotextiles for Coastal Protection – HPS14C Case Study

Project Information

Location

Withernsea, East Yorkshire

Contractor

BAM

Designer

JBA

Share

Coastal Protection - Geofabrics HPS14C

Geofabrics HPS14C has been successfully installed below the rock armour at Withernsea.

Nearly 70,000 tonnes of rock were imported from Norway each weighing up to 15,000kg. Rocks of this size were required to withstand the aggressive wave impact seen on the north-east coast, both now and in future, should climate change produce the expected worsening of sea conditions.

East Riding of Yorkshire Council recently disclosed historic land loss of 4m per year had increased to approximately 6m per year. In 2019, erosion opposite a seafront holiday park measured approximately 12m.

Geofabrics HPS14C is a thick needle punched non- woven geotextile manufactured from 100% virgin polypropylene high tenacity fibres containing 1% active carbon black. The main function of HPS14C is to prevent loss of the sub-soil from below the rock armour. With challenging low particle size subsoils, the HPS14C was ideal with its combined filtration and permeability characteristics whilst its high tensile elongation and CBR provided a robust solution capable of withstanding the rock impact during installation.

Early engagement with BAM allowed us to manufacture a bespoke roll length to suit the structure, reduce cutting and waste on site. Whilst this reduced cost it also delivered health & safety risk and sustainability gains.

The benefits of using Geofabrics HPS14C:

  • Easy installation – 6m wide rolls
  • Manufactured for performance – high tenacity fibre
  • Bespoke roll length – minimising joints
  • Isotropic properties – strength in all directions
  • High tensile elongation – sufficient stretch during rock placement
  • Puncture resistance – manufactured to CBR value taking into account rock weight, drop height and factor of safety
  • UV Stabilised – active carbon black
  • 100% virgin polymer Fibres – 100 years durability

 

For more information on our Coastal Products please contact our Sector Manager - Chris Daykin at cdaykin@geofabrics.com

View
Case Studies

Geotextiles for Coastal Protection – HPS14C Case Study

GEOfabrics HPS14C has been successfully installed below the rock armour at Withernsea. Nearly 70,000 t...

Urban Greening Project – Rome

Municipio Roma VII is the most heavily populated Municipio in the Italian Capital with more than 300,0...

Residential Root Protection – CuTex Case Study

As part of a wider contract PBA Solutions were responsible for the design and installation of a tree r...

Old Colwyn Case Study – HPS17C Coastal Protection

Geofabrics HPS17C has been successfully installed below the rock armour on Old Colwyn Promenade Coasta...

Rock Armour Geotextile Filters – A19 Case Study

On 18th February 2020, the A19 was closed between Chapel Haddlesey and Eggborough, due to collapse fol...

GEOfabrics Laboratory – UKAS Accreditation

Our onsite laboratory is accredited by UKAS to ISO 17025:2015 for the competence in testing to several...

View our Technical Hub

Industry News

ISO 14001 & 9001 Certification

GEOfabrics certified to ISO9001 and ISO14001

Flood and Coast Telford

Future Landscape and Playspaces 2023

Recent Tech Papers

Root Barriers Comparison Report

Geocomposite to Prevent Pumping Failure

CuTex Root Barrier Effectiveness Report

Development of Geocomposite to Prevent Mud Pumping

Geocomposite Material In Landfill Containment

Geosynthetics in Coastal Engineering Protection

Difficulties with Unit Weight

Designing with the Cylinder Test

Recent Downloads

Installation Guides & Certificates

ISO 14001 & 9001 Certificate

Case Studies

Culemborg Geldermalson Rail Inspection Pad—RK12 Drainage Geocomposite

Design Information

LFX Stone Selector Guidance

Design Information

Cylinder testing geomembranes and their protective materials: LFE2

TrackTex Anti-Pumping Geocomposite

TrackTex G Dual DoP No112-2022-02-21

TrackTex Anti-Pumping Geocomposite

TrackTex Dual DoP No043-2022-02-21

Design Information

Introduction to Geosynthetics

Rail Rig Laboratory Test

Find out how GEOfabrics can help you
Contact us for more information and assistance.

View our
Product Categories

GEOfabrics has a range of products across a variety of different sectors

Cuspates

Geocomposites

Geotextiles

View Sectors

GEOfabrics cover a wide range of sectors.

Root barriers

Construction

The construction industry is under ever increasing legislative and commercial pressure which require innovative appro...

General Civils

The use of geosynthetics in civil engineering applications has continued to grow exponentially over the last two deca...

Landfill

The design of an engineered waste containment system is considered a continuous project, including all operational ac...

Coastal & River Defence

Marine erosion can occur when the sea is energised by wind and gravity to produce waves, tides, and currents: it is c...

Rail

Geosynthetics have been employed to perform a number of functions in track construction and rehabilitation for almost...
Discover how GEOfabrics can help you today
Contact us for more information and assistance.