Special kinds of works
Construction water level reduction Artificial freezing of soils
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Special kinds of works |
Trenchless technologies
Trenchless technologies known in the world as NO-DIG or TRENCHLESS TECHNOLOGIES, are a variant of work performance on laying underground communications without disturbing the day surface. Main advantages:
Microtunnelling is a pipeline laying of different diameter by means of microtunnel shield tunneling facilities. Especially effective in the conditions of dense city construction at laying at considerable depths on a distance to 1,0 km.The important features - high accuracy of driving and configuration’s continuous monitoring. Main advantages:
The standard shield performs driving in soils from strength category 1 to 5. Horizontal directed drilling (HDD) - is a method of making a borehole with design parameters and of any configuration. It is achieved through a non-stop monitoring of the drilling process and route adjusting during the construction process. The above method is based on a principle of gradual widening of a channel by means of stepwise increase of a diameter of edge cones with any subsequent drive-in through the channel. |
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