October 2012, Vol. 67 No. 10
Equipment Spotlight
Trenchless Pipe Replacement: Rehabilitation Spotlight
Trenchless pipe replacement methods from HammerHead, TT Technologies, TRIC Tools, Tenbusch and Nowak Pipe Reaming.
HammerHead Trenchless
The HammerHead HB100 static pipe-bursting system offers 100 tons of pulling power. The HB100 has the muscle to replace water, sewer and gas lines as large as 16 inches, yet is compact enough to replace lines as small as 3 inches. Two levers control all pipe bursting functions — a first in larger tonnage static-bursting machines. High production is achieved through a simple one-man operation and on-board storage for 150 feet of rod that allow the HB100 to complete a 400-feet job, including payout and pullback in only two hours. Optional hydraulic leveling jacks adjust to place the machine on grade and aligned with the existing utility. Adjustments can be made during the burst as conditions change without stopping the burst process. HammerHead uses a heat-treated alloy rod that weighs only 27 pounds. An API-style joint handles thrust loads encountered when pushing around sweeping bends and encrusted or collapsed pipes compared to loose joint rod designs, which can buckle in encrusted or collapsed pipes. The optional rod spinner makes and breaks joints with 250 ft-lb (339 Nm) of torque and helps to increase overall production. 800.331.6653, hammerheadtrenchlesss.com
TT Technologies
Replace laterals without costly trenches, restoration and social disruption using the Grundotugger pipe bursting system. The Grundotugger provides the portability you want and the power you need to burst and replace service laterals, up to 150 feet and more, quickly and easily. It is particularly ideal for negotiating turns and bends up to 45 degrees. This lightweight system (no component over 70 pounds) includes everything you need for bursting operations including bursting heads for 4- and 6-inch pipe, winch cable, power pack and pipe fusion equipment. Pulling on a larger radius protects the cable from premature wear and ensures longer life. Lower hydraulic pressure (3,000 psi max) adds safety and allows a skid steer or mini-excavator power supply. A bottom stabilizer plate eliminates additional blocking in soft soils. A non-serrated gripping system also protects the cable. 800.533.2078, tttechnologies.com
TRIC Tools
TRIC Tools released the new X20 system featuring its smallest, lightest, fastest puller redesigned for even greater service and reliability. With 20 tons of pulling capacity packed into a mere 60 pounds, the X20 puller makes lateral bursting a breeze. 888.883.8742, trictools.com
Tenbusch
The Tenbusch Insertion Method (TIM) for trenchless pipe replacement allows local contractors to replace ailing underground infrastructure for both municipal and industrial applications. This unique pipe bursting method jacks (pushes) new pipe in place of the existing deteriorated pipe. Unlike other trenchless methods, the TIM system utilizes the column strength of segmented jacking pipe for the newly installed line. The stringent structural requirements of the TIM System ensure a long lived, structurally superior, end product. 972.221.2304, tenbusch.com
Nowak Pipe Reaming
The InneReam system places no undue stress on nearby fragile structures or paving during the installation process, consequently it also reduces stress on the installer. The system provides for the removal of existing VCP, PVC, AC, reinforced (Class II and III) or non-reinforced concrete pipe, and the simultaneous replacement with an HDPE, PVC or restrained joint ductile iron pipe of equal or larger diameter, double diameter replacement being the practical maximum upsize. Removal of the in-place pipe is accomplished by back reaming using a directional drilling machine with a cutter head that reduces the existing pipe to small pieces, which are carried along with other excess particles by the drilling fluid to an extraction point. 316.794.8898, pipereaming.com
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