X

GRUNDORAM central to pioneering culvert expansion

10.02.22 - Drainage is always a critical element when constructing a new housing development and the landowner must understand the water course under the land to plan the evacuation of excess water. The project managers of a new housing estate in Barnstaple, Devon identified that the capacity of a 600mm concrete culvert on the site was not sufficient to prevent flooding.
The client commissioned OnSite Central Ltd, a specialist contractor for water and waste management, to plan and carry out all the works associated with a culvert expansion. The culvert runs under the only access road to the building site which had to remain operational at all times and a trenchless solution was therefore required. Nathan Hand, Project Manager, appointed Genseed Underground Services Ltd, a specialist contractor, to develop a solution.

The existing concrete pipe was to be replaced by a new 750mm twin wall pipe. The usual method for upsizing pipes is pipe bursting – where an expander is pulled through the existing pipe, splitting it and forcing it open with the replacement pipe pulled in behind. On this occasion, however, the limited depth of cover and proximity of other services meant bursting the pipe outwards could cause damage and surface heave on the road.

A new, previously untried method was devised specifically to overcome this issue and that was to encapsulate the existing concrete pipe with a 930mm open ended steel pipe; breaking up the concrete pipe on the inside during the installation ready for the new pipe. This was achieved using a TRACTO GRUNDORAM pipe rammer from a launch pit constructed by OnSite. To complete the work Genseed designed and manufactured a multi-function custom built cutting, splitting and crushing head with internal blades that fractured the concrete pipe during the ram.

A total length of 21m of culvert was upsized prior to the installation of 750mm twin wall pipe and grouting, which was completed by OnSite.

Accuracy in this particular application was essential particularly given the close proximity of high-pressure gas and water mains. Jamie Marshall undertook the precision installation;

“The GRUNDORAM is exceptionally reliable and accurate which is important when there are other services to avoid underground. Our custom-made blades incorporated a guiding system to ensure the steel tube remained concentric to the concrete culvert and we set the pipe ramming guide rails to the line and grade of the culvert lowering the encapsulating head on to the them. We then butt-welded sections of steel tube to the back of the head and a winch cable was pulled through the culvert and attached to the head with the GRUNDORAM attached to the rear. After connecting an airline, the ram started and carefully progressed in sections until the encapsulating head was successfully exposed in the receiving pit where it was cut off and removed ready for the twin wall pipe.”
The whole job took just over two weeks from start to finish, with full rectification completed by the Onsite team. Nathan was impressed by the final result;

“This was an example of great teamwork. From the initial call to TRACTO UK – who recommended Genseed to us – to the development of a bespoke solution for the culvert expansion and the works completed by all the teams, we completed the job with no interruption to site traffic, no damage to other services and no damage to the road surface. The client was very pleased with the speed and smooth delivery of the project.”
Overview

DO YOU HAVE ANY QUESTIONS???
WE WILL BE GLAD TO HELP YOU!

CALL US!

+44 1234 342 566

WRITE TO US!

CONTACT FORM

Stay up to date

Subscribe to the Newletter
Contact

Do you have any product or
services related questions?

Please contact us:

+44 (0)1234.342 566

SEND E-MAIL
X

Privacy settings

We use cookies on our website. Some of them are essential to operate the website, while others help us analise the use of our website and improve our services. By clicking on "I accept" you agree to the processing of your data. You can use the "Individual cookie settings" button to refuse the use of cookies or to customise them at any time. You will find more detailed information in our data protection declaration.

Necessary
Statistics
Marketing
Accept all

Only accept necessary cookies
Individual cookie settings
Privacy statement | Legal notice

Privacy settings

X
Here you will find an overview of all cookies used. You can give your consent to the categories and display further information.
Accept all Back Store

Necessary>

Cookie
Description
Provider/
Storage-time
autokat
Cookie assist to provide the category for the download area.
TT
Session
autopg
Cookie assist to provide the product group for the download area

Session
autop
Cookie assist to provide the product for the download area

Session
tt_c_req
Consent to the use of necessary cookies. This figure can not be altered. If you don't store this figure, we can't allow you to access this page.

365 days
tt_c_stat
Consent or disapproval of cookies to create statistics

365 days
tt_c_marketing
Consent or disapproval of cookies for market analysis. Integrated Youtube-Videos can only be played with consent.

365 days
cftoken
This cookie is used to determine the type of device the guest is using, so that the website can be correctly formatted. This information is stored inside cookie "CFID".

10950 days
cfid
This cookie is applied in connection with the cookie "cftoken". The cookie stores a specific ID for the guest, as well as the device and browser of the guest.

10950 days
c_domIDPrefix
Cookie assist to store the chosen domain.

Session
c_domIDSuffix
Cookie assist to store the chosen domain.

Session
c_login
Cookie assist to store the login-data.

Session
cfglobals
Is defined by Adobe ColdFusion to identify the client device, so that the website-user-session variations can be stored.

10950 days
adseen
TT-advertising has already been displayed

Session

Statistics>

Cookie
Description
Provider/
Storage-time
_ga
Registers a unique ID, which is applied to generate statistical information, showing how the visitor uses the site.

365 days
_gat
Is applied by Google Analytics to restrict the requirement rate.

1 days
_gid
Registers a unique ID, which is applied to generate statistical information, showing how the visitor uses the site.

1 days

Marketing>

Cookie
Description
Provider/
Storage-time
ads/ga-audiences
Used by the Google Tag-Manager.

Session
gps
Registers a unique ID on mobile devices, to enable tracking based on the geographic GPS location.

1 days
ide
Applied by Google DoubleClick to register and report the users actions on the website after viewing or clicking on one of the providers ads, for the purpose of measuring the effectiveness of an advertisement and displaying targeted advertising to the user.

365 days
pref
Registers a unique ID, applied by Google to obstain statistics on how visitors use YouTube-Videos on various websites.

240 days
test_cookie
Used to check whether the visitors browser supports cookies.

1 days
VISITOR_INFO1_LIVE
Tries to estimate the user bandwidth on pages with integrated YouTube-Videos.

179 days
YSC
Registers a unique ID to keep statistics of YouTube videos, which the user has seen.

Session
yt-remote-cast-installed
Stores the user settings when retrieving a Youtube-Video integrated on other websites.

Session
yt-remote-connected-devices
Stores the user settings when retrieving a Youtube-Video integrated on other websites.

Persistent
yt-remote-device-id
Stores the user settings when retrieving a Youtube-Video integrated on other websites.

Persistent
yt-remote-fast-check-period
Stores the user settings when retrieving a Youtube-Video integrated on other websites.

Session
yt-remote-session-app
Stores the user settings when retrieving a Youtube-Video integrated on other websites.

Session
yt-remote-session-name
Stores the user settings when retrieving a Youtube-Video integrated on other websites.

Session
CTCNTNM_a8a9cd6e100ea022
Cookie from wireminds GmbH to analise visitor behaviour. This may involve the collection, processing and storage of data from which user profiles are created under a pseudonym.

90 days
track
Cookie from wireminds GmbH to analise visitor behaviour. This may involve the collection, processing and storage of data from which user profiles are created under a pseudonym.

Session
Advanced Trenchless Technology