18th International No-Dig Conference and Exhibition
International Conference and Exhibition, which is the trenchless
technology’s industry showcase, was the first to be held in the southern
hemisphere. The staging of the 18th International No-Dig Conference and
Exhibition in Perth last October was the culmination of an exhaustive
four-year effort by a small-dedicated local ASTT committee under the
chairmanship of conference convener Menno Henneveld.
The results of these efforts were realised when a record attendance of some 600 delegate from as many as 32 countries attended.
The event was sponsored by organisations including Vermeer, Kembla Constructions, Vinidex, Underground Services Australia, Dial Before You Dig, WA Water Corporation, Georgiou Group and Iplex Pipelines.
Key Notes — Dr Ray Sterling
engineers will understand trenchless technologies as well as they
currently understand conventional technologies.
appreciate their benefits and their problems and will think of them as the
standard tools with which to install and maintain our underground utility
trenchless techniques will have many applications to other types of
underground works that are very poorly explored at present."
Key Notes — Pr. Bandi Horvat
professor of Underground Space Technology & Subsurface Construction at
the Delft University of Technology and Chairman of the Netherlands
Trenchless Technology Research Group, said the ULS could represent an
innovative development of pipelines beyond their traditional uses.
"Networks for drinking water, waste water and natural gas are some of
the basic facilities we take for granted in any built-up area, while the
underground transport of gases and liquids has been commonplace for many
years," Horvat said. "It is also important to realise that the
transportation of gases, crude oil, hydrocarbon products and chemicals
through (properly designed and maintained) pipelines is highly preferable
from a safety point of view." He said the Dutch interest in the
possibilities of underground transport in urban areas was being spurred by
the availability of new technology such as trenchless methods for
implementing and maintaining tubes in built-up or environmentally
Horvat said that,
while non-traditional systems of underground freight transport would have
favourable impacts on the urban environment and accessibility, their
feasibility depended on their cost-competitiveness. "The necessary
system change requires the transport sector to accept and undergo a
radical switch in the logistic choice approach, which seems, up to now, to
be the weakest point for introducing underground freight transport,"
he said. "Therefore a leading role of government, in close
cooperation with private sector partners, remains essential for developing
and introducing underground freight transport.
decision concerning government contribution, social benefits should also
be weighted such as avoiding investment in other modes of transport,
improvement in environmental quality, safety and the quality of life,
deepening logistics know-how and, last but not least, economic functioning
of urban areas."
Alongside the conference in the Burswood International Resort, the 2200sq.m exhibition in the adjacent Burswood Dome was the largest trenchless technology display ever mounted outside North America.
also exceeded expectations where some 250 people were involved as
exhibitors representing 120 exhibits each displaying their products. This
massive display really illustrated the immense support for the three day
conference and exhibition.
program consisted of the keynote sessions on the opening day, and was then
split into concurrent sessions, field demonstrations and on the last day,
there was three concurrent workshops on major topics: micro-tunnelling,
horizontal directional drilling and sewer rehabilitation.
The theme of the
conference was "Underground Space Technology - the hole
solution". Some 44 speakers from around the world addressed a range
of issues relating to the technology and its applications.
In addition, the
No-Dig Live demonstration in the nearby GO Edwards Park allowed several
leading international and Australian companies to show their latest
equipment in working mode to delegates from around the world.
pipe-bursting project in the Canadian City of Nanaimo has been named the
winner of the 1999 No-Dig Award by the International Society of Trenchless
announced at the official dinner during the No-Dig 2000 conference in
Perth, included high commendations for the WA Water Corporation’s
Kalgoorlie water pipeline maintenance program and a new driving control
system for microtunnelling machines developed by the Nippon Telegraph and
Telephone Corporation of Japan. The winning projects were chosen from
eight entries for the annual awards.
project utilised pipe bursting trenchless technology to increase the size
of some 4km of asbestos-cement wastewater pipe without excavating to
remove the existing pipe.
The use of the
pipe bursting technique, in which an expansion head is pulled through the
existing pipe to break it apart and allow a replacement pipe to be pulled
into position, greatly reduced the environmental impact on a sensitive
river basin and reduced disruption on private properties, riverbanks and
The project was
completed a month ahead of schedule and $600,000 under the $5.4 million
2000 Interactive Workshop Communiqués
On the final day
of the Perth NO-DIG 2000 Conference and Exhibition, three simultaneous
workshops in the areas of microtunnelling, rehabilitation and horizontal
directional drilling were undertaken. The aims of these workshops was to
determine those issues of international significance which could impede
the rate of growth in each of these key areas.
Some of the key
issues raised include:
Variable Ground Conditions; Reliable Geotechnical Information; Risk
Sharing; Education; Communication; Shortage of Trained Operators; Jacking
Pipe Materials; Shortage of Design Engineers that understand
Directional Drilling - Contractor/Client Relationships; Risk Sharing;
Specifications fit for Purpose; Poor Planning and Design; Inexperienced
Operators; Australian Standards; Community Awareness; Look Ahead Steering
Systems; Faster joining of HDPE; Mapping of Existing Subsurface
Those areas where
issues were identified will provide valuable input into the Strategic
planning processes for both ISTT and ASTT, and will prove very useful as a
guide in setting future directions.
Also outside the main three day program was the No-Dig Cup golf day. This event was held at the Joondalup Golf Course and there were some 56 players participated. The winner with a stableford score of 42 points was Steve Dewar.
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