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 2017 IGA was planned not only as a 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 civil engineering. By using 3,600 m³ of liquid soil, we have ensured the long-term stability of this significant section of the tunnel and made an important contribution to the stability of the infrastructure.
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  • Trenchless pipe replacement

    Renovation of the Bötzow Brewery

    As part of the renovation of the historic Bötzow Brewery in Berlin, extensive measures were taken to secure the construction pit.
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  • Trenchless pipe replacement

    Rudolfstraße Pumping Station

    As part of the sewer system renovation project, KARL WEISS Technologies excavated the foundation pit and installed the connections for a stormwater overflow structure in Berlin’s Friedrichshain district.
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  • Trenchless pipe replacement

    Wilhelmsaue Network Pumping Station

    Vattenfall needed to increase the pressure in its district heating pipelines in order to further expand service in the urban area. The contract for the design and construction of this pumping station was awarded to KARL WEISS Technologies based on its innovative, customized proposals.
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  • Trenchless pipe replacement

    Bernau Railroad Crossing

    The project calls for two trench excavation sites and one pipe-jacking operation, each with a DN 1000 pipe. Large clusters of boulders in the ground pose a particular challenge, as they could endanger the machine’s cutting head and disrupt rail traffic.
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  • Trenchless pipe replacement

    Waldowstrasse

    For the renovation of the wastewater system, a trough-shaped excavation with sheet piling, a concrete sub-base, and an HDI seal is planned. Alternatively, a microtunneling method using mechanical excavation was proposed.
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  • Trenchless pipe replacement

    Rehabilitation of a DN 900 GG (PN 10) pressurized sewer pipeline

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

    Renovation of a DN 900 (PN 10) water main

    Highlights: Two parallel pipelines laid on a slope, with gradients reaching 100% in some sections and featuring various pipe bends between the pumping station on the Limmat and the plant premises 300 m of pipeline rehabilitation using 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.
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    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