Charador Environmental Services
Tel +44 1789 551188
Fax +44 1789 551131
Email info@charador.co.uk
Web site: www.charador.co.uk
At a recent water exhibition in Kuala Lumpur, MI Pipes who are represented in Europe, Africa and the Middle East by Charador, put on display their new large diameter re-lining pipe. The re-lining pipe was designed to slip-line a 4m i.d. pipe which operates at pressures of up to 16 bar. The enormous pipe, which caused quite a stir at the exhibition, is thought to be largest slip-line pipe that has been made to date.
MI Pipes are expecting an enormous interest for this re-lining pipe from pipeline owners who are struggling to find solutions for large diameter pipes that have reached the end of their design lives or which have suffered from corrosion problems.
Colcrete Eurodrill
Tel: +44 1246 868700
Fax: +44 1246 868701
Email: info@colcrete-eurodrill.co.uk
Web site: www.colcrete-eurodrill.com
Among the variety of equipment manufactured by Colcrete Eurodrill is a range of machines designed primarily for the mixing and pumping of Bentonite and polymers used as lubricants for microtunnel and pipejack construction.
The Colcrete Eurodrill range of Microtunnel Lubrication Units offer complete systems including mixers, storage tanks and injection pumps to meet a variety of requirements. They all incorporate the well-proven Colcrete Colloidal Mixer, which produces a very stable product, resists water separation and retains its lubrication properties for longer when injected. A variety of pumps can be fitted, usually based upon well-proven grout pumps such as the Mocol and Minicol ranges.
With batch capacities from 120 to 300 litres, and storage capacities from 150 to 6000 litres, a wide range of applications may be catered for. Pump outputs from 35 l/m to 130 l/m or more are available.
Ditch Witch
Tel: +1 405 336 4402
Fax: +1 405 336 0617
Email: info@ditchwitch.com
Web site: www.ditchwitch.com
The 8/60 Jet Trac system offers long distance boring capabilities in a compact, manoeuvrable machine. The drill unit is self-contained, with one electrical connection and one hose to the FP85 fluid system.
Making up and breaking out drill pipe is a completely mechanised process, minimising drill pipe handling time, and streamlining production.
Variable drilling fluid flow control lets you maximise production and reduce fluid mess by adjusting fluid flow and pressure as boring conditions change.
The 8/60 provides powerful torque, thrust and pullback to successfully bore and pull in services over long distances in difficult soil conditions.
A wide variety of wing cutters and cone-compaction tools are available for the 8/60. They let you work in more soil types and pull back larger diameter materials.
Herrenknecht
Tel: +49 7824 3020
Fax: +49 7824 3403
email: info@herrenknecht.de
Herrenknecht provides a comprehensive range of products for the small bore and HDD industries.
The popular AVN series of small bore machines range from the AVN 250 up to the AVN 1200 TC. All feature a full face cutting machine, open mode wheels with hardfacing that can be equipped with metal picks, ripper chisels or spade type cutting teeth, depending on soil conditions. Cutter discs can be fitted to the head for pipe-jacking. Excavation diameters range from 368mm up to 1.96m.
Also available from Herrenknecht is the T and D series slurry shield machines. The 1.8m diameter AVN 1500T has a retention length through rock of over 500m made possible as roller bits can be replaced. This reduces the number of intermediate shafts thereby reducing costs. The D series slurry machines range from the 1600 D with a diameter of 1.98m to the 2400 D with a 2.8m diameter. The D series features a Hydroshield that is better deployed in variable soils. EPB shield machines are also available primarily for use in soft ground.
Modular designed Herrenknecht HDD-rigs are a proven product innovation in horizontal directional drilling worldwide. To quickly deploy these Maxi and Mega Rigs, with forces of 100t to 400t (HK100M, HK200M, HK300M, and HK400M), the Modular-System Design was developed. The rigs are divided in three components. These modules have a maximum weight of 20t and can be assembled and hydraulically tensioned on site.
Interflow
Tel: +61 2 9631 2444
Email: mail@interflow.com.au
Web site: www.interflow.com.au
The benefits of trenchless technology were demonstrated recently when a large section of trunk sewer collapsed in Geelong, Australia. The 1350mm diameter reinforced concrete pipeline, collapsed after heavy rain following a prolonged period of drought. The depth and location of the pipeline meant repairs would need to be made with minimal excavation. In addition, the main could not be out of service during repair and total by-pass pumping was not an option.
Rotaloc is a spirally wound PVC liner which is installed by a winding machine travelling inside the compromised pipeline. The pipe is not blocked during installation and while flows need to be managed, the pipeline does not need to be taken out of service.
Based on the assumption the pipeline at Geelong had no remaining strength, Interflow proposed using a liner capable of taking all applied loads. The first challenge to face Interflow was the removal of debris. More than 40m3 of silt had washed in and in some places filled the pipeline to 40% of its diameter. Following the successful removal of the debris, installation of the liner began.
Services to Barwon Water customers were maintained throughout the project. All work was carried out after 10pm during periods of low flow. Each night, winding of the liner would cease while pump stations operated to relieve upstream storage capacity and until the flow subsided. The damaged sewer was successfully repaired with minimal inconvenience to the community.
Lovat mts
Tel: +49 388 5132 70
Fax: +49 388 5132 710
E-mail: info@lovatmts.de
Lovat mts (micro tunnelling systems), located in Valluhn, Germany, 50km east of Hamburg, specialises in the development, manufacture and servicing of microtunnelling systems. The company also offers full support for Lovat TBMs in Europe as well as Lovat mts machines worldwide.
There are currently three product lines available, ranging from 150mm to 2,000mm i.d. The mts 400 is an efficient and simple auger tunnelling system for diameters of 150 to 400mm i.d. The mts 1000 has a diameter range of 250mm to 1,000mm i.d. and is designed for mechanical as well as hydraulic spoil removal, via auger or slurry. The mts 2000 is designed for demanding long distance and curved tunnelling of 250mm to 2,000mm i.d. The machines are of modular design and use many common components, simplifying diameter conversions.
Radiodetection
Tel: +44 117 976 7776
Fax: +44 117 976 7775
Email: sales.uk@radiodetection.com
Web site: www.radiodetection.com
Radiodetection Trenchless Products has added a new sonde to its existing DrillTrack system. The ‘WireLine System’ has been developed to enable users of HDD machines to carry out operations longer and deeper than before and also in areas of very high interference, such as city centres and river and road crossings.
The Wireline System involves a Wireline interface box and a DataSonde that is powered by a cable from the interface box on the drilling machine. The CableSonde sends information, such as roll and tilt angle, back via the interface box to the DataView. The signal emitted by the DataSonde is also picked up by the DrillTrack G2 receiver.
When conditions do not allow the operator to physically track the DataSonde, e.g. when crossing a river or busy road, the receiver is placed ahead of the obstacle and it becomes a stationary target. Steering information is radioed to the DataView allowing the drilling direction to be changed. The DataView is positioned at the drilling machine, and a radio link to the receiver allows the information from the DataSonde to be retransmitted in real time to the DataView, displayed on the large LCD screen.
Rotex
Tel: +358 3 347 5800
Fax:+353 3 347 5858
Email: rotex@rotex.fi
Symmetrix is a simple concentric method of drilling through overburden with casing from Finnish company Rotex. It can drill straight holes at any angle from vertical to horizontal equally effectively and to depths over 100m.
A pilot bit is attached to the ring bit with a bayonet coupling. Both rotate to cut a hole large enough to allow the casing shoe to pull down the casing pipe. The flushing air is ejected through the holes in the face of the pilot bit and returns to the annulus ensuring high flushing speed. When the hole is complete the pilot bit is unlocked and withdrawn through the casing pipe, which can also be retrieved. Drilling can be continued using a standard bit.
Topcon (GB)
Tel: +44 1530 518 800
Email: kalpna.mistry@topcon.co.uk
Web site: www.topcon.co.uk
The TP-L4 series pipe laser has a combination of features and technology designed to meet harsh jobsite conditions. The rugged waterproof aluminium casing, moisture-sealed to cope with immersion up to 5m deep, protects a variety of high technology features, including remote control of all line and control functions: Smartline‚ technology which ‘remembers’ the measurements taken previously and allows automatic second-day set up; and an accurate levelling and grade system allows for maximum precision.
Good visibility is vital when working in difficult or dim light and the TP-L4 series offers a choice between the unique Topcon patented GreenbeamTM, that offers maximum visibility in most light conditions, or the traditional red beam, good for viewing in some types of artificial light. It also has a large, sloped backlit LCD which can be seen easily without climbing into the manhole or trench, making it easier and safer to read the measurements.
Four models are available in the range to suit different needs and budgets and each has its own combination of features. All are equipped with powerful batteries and easy charge packs for remote working.
VMT
Tel: +49 7251 96 99 0
Fax: +49 7251 96 99 22
Email: international@vmt-gmbh.de
Web site: www.vmt-gmbh.de
VMT has now supplied guidance systems for extended distance and curved pipejacking applications on approaching 100 projects.
The drives, totalling over 130, have ranged in size from 900mm to 3.8m in diameter. The lengths involved are up to 1,596m from a single shaft, with eight of these drives having been in excess of 1,000m. The curves involved have had radii down to 300m. The use of vertical curves on several river crossings for gas pipelines has proved particularly beneficial.
The ability to execute precision guided drives has enabled the pipejacking principle to extend its use and application. Designers are now including curves in their designs, sometimes complex with both left and right horizontal curves, occasionally both horizontal and vertical in the same project.
