The International Society for Trenchless Technology

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Total: 22 results found.

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1. Pipe Jacking & Microtunneling
(News/Guidelines)
... to maintain face stability, an articulated steering unit with steering jacks for steering corrections, various control valves, pressure gauges, flow meters, and a data acquisition system.  Additionally, ...
2. Slip Lining
(News/Guidelines)
... Excessive grouting pressure could damage or collapse the liner.  In addition, floatation forces on the liner need to be taken into account when grouting and means taken to avoid floatation especially in ...
3. Pipe Bursting
(News/Guidelines)
... the exiting alignment to replace a pipe avoids the need to secure additional right-of-way to install the replacement pipe. Bursting and splitting can be used to upsize the pipeline increasing its flow ...
4. Close-Fit Slip Lining
(News/Guidelines)
... additional constraint, while the shape of cold-folded liners has to be restrained using temporary strapping or sheathing.  Hot-folded liners are wound onto a reel for transportation to site. Factory-folded ...
5. Pipe Splitting
(News/Guidelines)
... the exiting alignment to replace a pipe avoids the need to secure additional right-of-way to install the replacement pipe. Bursting and splitting can be used to upsize the pipeline increasing its flow ...
6. Pipe Ramming
(News/Guidelines)
... soil to the exit area. Additional pipe lengths may be welded onto the casing periodically to lengthen the drive.  Some soil may be removed during installation to reduce frictional drag of the casing ...
7. Cement mortar Liner
(News/Guidelines)
... mortar provides two benefits. First and foremost, cement mortar linings are highly alkaline and protect the host pipe against metallic corrosion. In addition, the relatively smooth internal surface of ...
8. Vacuum Excavation Potholing
(News/Guidelines)
... vacuums may be used to remove spoils associated with directional drilling and tunneling operations. In addition, vacuums are sometimes used to support hand tunneling and auger boring operations where the ...
9. Pipe Extraction
(News/Guidelines)
Lead water pipes represent a health risk through absorption of lead into drinking water. In addition, some jurisdictions prefer to remove pipes such as asbestos concrete (AC) and cast iron (CI) rather ...
10. Potholing
(News/Guidelines)
... vacuums may be used to remove spoils associated with directional drilling and tunneling operations. In addition, vacuums are sometimes used to support hand tunneling and auger boring operations where the ...
11. Potholing for Local Repair
(News/Guidelines)
... vacuums may be used to remove spoils associated with directional drilling and tunneling operations. In addition, vacuums are sometimes used to support hand tunneling and auger boring operations where the ...
12. Join ISTT
(Uncategorised Content)
... Resource Centre TRC. ISTT members also receive quarterly mailings of Trenchless International (TI) - ISTT’s official magazine, and receive TI’s email reports: news@trenchlessinternational.com. In addition, ...
13. What is ISTT
(Uncategorised Content)
... Affiliate Societies) All recorded members of an Affiliated Society are members of ISTT. In addition to Affiliated Society members, ISTT has a limited number of members who reside in regions where no Affiliate ...
... honor posted on the ISTT website, and (4) are authorized to use the ISTT logo on promotional material related to the award activity or recipients. In addition, the winner may be afforded an opportunity ...
15. Lifetime Service Award
(Uncategorised Content)
... Vice-President and Chair of CzSTT. He has played a significant role in organizing all 17 of CzSTT’s National No-Dig conferences. Additionally, he has also served as the Chairman of the editorial board ...
16. 2011 ISTT No-Dig Award Winners
(Uncategorised Content)
... were routinely well below freezing. The solution chosen was to install a semi-structural liner using Cured-in-Place Pipe (CIPP). An additional challenge emerged when the contractor discovered the ...
17. 2015 ISTT No-Dig Award Winners
(Uncategorised Content)
... the taper of the host pipe and conformed to the two elbows in the middle and end of the inversion. In addition, there was not enough space to open an exit shaft, so the inversion had to stop just short ...
18. Past Winners
(Uncategorised Content)
... 3-dimensional field-view directional drilling locating system with a single button user interface and graphically driven menu. In addition to highly accurate tracking capabilities, an operator can use ...
19. ISTT Membership Benefits
(Uncategorised Content)
... of you. Beginning in 2010, Corporate membership annual dues will be substantially reduced from £250 ($412) to only £70 ($115). In addition, Corporate members may, at no additional cost, add a second ...
20. Current year
(Uncategorised Content)
... Pipe (CIPP) was chosen. An additional challenge emerged when the contractor discovered the inversion system lacked the capacity to handle some of the sections to be rehabbed.  The contractor designed, ...
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