Engineering & special civil engineering

We carry out all common types of shoring in civil engineering with our own equipment and personnel.

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Pipeline & duct construction

The roots of Karl Weiss Technologies GmbH lie in pipeline and sewer construction.

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Trenchless pipe replacement

The hydros process was developed for the trenchless replacement of pressure pipes.

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Research and development

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Insight into projects

  • Engineering & special civil engineering

    IGA 2017 summer toboggan run & cable car

    The summer toboggan run at the IGA 2017 was not only planned as the highlight of the event, but also as a technical masterpiece in the field of foundation engineering.
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  • Trenchless pipe replacement

    Backfilling the BEHALA tunnel

    The backfilling of the BEHALA tunnel represents an impressive milestone in the art of civil engineering. With the use of 3,600 m³ of liquid soil, we have sustainably secured this important tunnel section and made an important contribution to the stability and future viability of the infrastructure.
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  • Trenchless pipe replacement

    Conversion of the Bötzow brewery

    As part of the conversion of the historic Bötzow brewery in Berlin, extensive measures were carried out to secure the construction pit.
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  • Trenchless pipe replacement

    Rudolfstrasse pumping station

    As part of the renovation of the sewer network, KARL WEISS Technologies constructed the excavation pit and the connections for a rainwater overflow structure in Berlin Friedrichshain.
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  • Trenchless pipe replacement

    Wilhelmsaue network pumping station

    The company Vattenfall needed to increase the pressure of its district heating pipes in order to further expand the supply in the city area. The contract for the planning and construction of this pumping station was awarded to KARL WEISS Technologies on the basis of innovative special proposals.
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  • Trenchless pipe replacement

    Railroad crossing Bernau

    Two trough excavation pits and a pipe jacking of DN 1000 each are planned for the project. Large boulder pockets in the ground pose a particular challenge, as they could endanger the jacking head of the system and obstruct rail traffic.
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  • Trenchless pipe replacement

    Waldowstrasse

    A trough excavation with sheet pile wall, underwater concrete base and HDI seal is planned for the renewal of the wastewater drainage system. Alternatively, a microtunneling method with mechanical tunnelling was offered.
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  • Trenchless pipe replacement

    Rehabilitation of a DN 900 GG (PN 10) wastewater pressure pipeline

    Highlights: 1,600 m inliner installation in 8 sections of 200 m each starline®STRUCTURE* system as self-supporting pressure hose liner Max. operating pressure 10 bar (PN 10) Passing through pipe culverts with 2x 15° bends
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  • Trenchless pipe replacement

    Rehabilitation of a DN 900 (PN 10) water pipe

    Highlights: 2 parallel pipes laid on a slope with a partial 100% incline/decline with various pipe bends between the pumping station on the Limmat and the factory premises 300 m pipe rehabilitation with the starline®HPL-S method in 4 sections
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Project overview

  • Construction of gas pipelines

    As a specialist company certified in accordance with DVGW GW 301 and GW 320-1, we have been offering our customers the competent implementation of construction projects for the production and renewal of gas pipelines for many years.
    G1: ge, pe, st; R1; R2; GN1.

    We are your efficient partner for the construction of gas pipelines for all pressures and nominal diameters at any desired depth.
    In the past, the rehabilitation with fabric hoses in accordance with GW 327, or the renewal of gas pipelines by pipe pulling or pipe insertion in accordance with GW 320-1 have also led to success in a wide variety of construction measures and tasks and are carried out just as carefully by our specialists as trenchless replacement using the pressing/pulling method in accordance with GW 322-1.

    We would be happy to advise you on the most suitable construction method for your application!

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  • Construction of drinking water pipes

    To ensure that the water comes out of the tap clean, we carry out construction work for our customers to produce and renew drinking water pipes with great care and in compliance with strict hygiene regulations. Water is the most important foodstuff and cannot be replaced! We are a certified DVGW specialist company in accordance with GW 301:
    W1: az, ge, ku, pe, st; R1; R2; GN1

    Water pipes for all pressures and nominal widths, at any depth, are manufactured by our employees with a high level of expertise. In addition to the construction of drinking water pipes, our range of services also includes the production of wastewater pressure pipes, service and extinguishing water pipes and, together with the areas of district heating and gas, completes the pipeline construction at KARL WEISS Technologies.

    Other possible construction methods that we are happy to carry out for you are the renovation of water pipes with fabric hoses in accordance with GW 327, renewal by pipe pulling or pipe insertion in accordance with GW 320-1, or trenchless replacement with our hydros® method in accordance with GW 322-1.

    Get in touch with us

  • Construction of drinking water pipes

    To ensure that the water comes out of the tap clean, we carry out construction work for our customers to produce and renew drinking water pipes with great care and in compliance with strict hygiene regulations. Water is the most important foodstuff and cannot be replaced! We are a certified DVGW specialist company in accordance with GW 301:
    W1: az, ge, ku, pe, st; R1; R2; GN1

    Water pipes for all pressures and nominal widths, at any depth, are manufactured by our employees with a high level of expertise. In addition to the construction of drinking water pipes, our range of services also includes the production of wastewater pressure pipes, service and extinguishing water pipes and, together with the areas of district heating and gas, completes the pipeline construction at KARL WEISS Technologies.

    Other possible construction methods that we are happy to carry out for you are the renovation of water pipes with fabric hoses in accordance with GW 327, renewal by pipe pulling or pipe insertion in accordance with GW 320-1, or trenchless replacement with our hydros® method in accordance with GW 322-1.

    Get in touch with us

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KARL WEISS Technologies GmbH