The installation can be made at the shortest possible distance
Less risk of ground settlement since no soil is moved in installation – the pipe is in its place
No impact on groundwater
No impact on drainage, e.g. in agricultural areas
No need for sheet piling
No impact on ground surfaces, and hence no need for restoring
Trenchless installation can just as well be done during winter, below frozen soil
Can be used where the ground’s bearing capacity is too low for trenching equipment to be used
Easier permit-process; low or no compensation to landowners
No need for pipe bedding, nor backfill
Deep installations, e.g. for sewage, are less expensive with trenchless since sheet piling is not needed
Lower costs for reinstating surfaces – asphalt, stone laying, plantations
No need for compensation for disturbances to businesses and stores
Lower societal costs due to streets not being closed, less traffic disturbances, less delays, less loss of income
A project with trenchless technology offers opportunities to make complementary installations in the area at the same time, and thus at a lower cost.
Using trenchless means taking sustainability seriously
Less use of energy due to a faster process
Less use of finite resources, e.g. fuels and filling
Less transportation of material from trenching
People and businesses are not disturbed
No or decreased disturbance to traffic
No impact on plants and trees
Trenchless pipeline and cable construction is significantly faster. What disturbance that cannot be avoided is thus smaller, e.g. noise pollution and emissions from machinery
Lines can be constructed also in protected natural areas, near historic landmarks etc. without damage
No risk of collapses trenches
Polluted ground material is left undisturbed
Trenchless projects are faster than trenching
Preparations are in many cases faster and less complicated
Restoring of asphalt, stone-laying and plantations is faster or unnecessary
The soil consists of various soil materials – clay, sand, gravel etc. Often, the soil is a blend of rocks, boulders and even bedrock. Some drilling methods are especially developed for certain types of soil and may be less, or not at all, suitable for other materials. A project of pipeline and cable construction thus often means that drilling will be done through different soil materials.
All drilling jobs in soil have that in common that the drilled hole must be stabilized to avoid collapse. Therefore, the drilling process includes the installation of a casing. When drilling is completed, this casing can be used as a conduit. The line (water, power cable, fiber cable etc.) is placed within the conduit pipe. In some projects, and using certain methods, the media may be installed directly in the ground without a conduit pipe.
Basic information on the most common methods can be found here on our website. For more information, please visit our “WikiNoDig” at www.nodigplatform.se
The Scandinavian mining industry has provided many years’ experience of drilling in bedrock. Several methods have been developed, which often can be combined to ensure the best result.
Rock drilling includes two main steps: high precision pilot drilling, and reaming. Significant for rock drilling is that casings seldom are needed, since the full distance is completed in bedrock. The service pipe can be installed directly into the hole. In some projects, the hole is lined with a lining pipe and the spacing injected.
Basic information on the most common methods can be found here on our website. For more information, please visit “WikiNoDig” at www.nodigplatform.se
Today, there are several well developed and tested methods for pipeline rehabilitation. These methods are relevant for sealing pipelines, restoring lines to original function and strength, or even increasing the pipe dimension.
Basic information on the most common methods can be found here on our website. For more information, please visit “WikiNoDig” at www.nodigplatform.se
Multiple pipelines can be drilled in one step
Drilling means that the pipeline is securely installed under in the sediment, and the water is not clouded in the process of installation
A trenchless installation of pipe landfalls keeps the pipeline safe from impact and erosion.
Crossing for salamanders
Cultural landmarks may hinder the installation of a new pipeline.
The old maple tree could stay in its place, since the pipeline was installed through drilling.
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Johan Lundberg AB is an independent consultant company within trenchless pipeline and cable construction and rehabilitation.