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FAST AND UNCOMPLICATED PIPELINE INSTALLATION. With Direct Pipe® a prefabricated pipeline is installed continuously in one single step, concurrently with the excavation of the necessary bore hole.
MECHANIZED TUNNEL ENLARGEMENT AND FIRE PROTECTION COATING. Herrenknecht has developed mobile equipment for adapting existing tunnels to recent safety regulations and for improving their lifetime. During any of the construction work one-way traffic in the tunnel is still possible. The refurbishment equipment is able to remove existing linings, enlarge and reline new tunnel profiles. Tunnel enlargement equipment can be adapted to high-speed railway lines and road tunnels since the tunnel diameter can be enlarged accordingly. Finally, the new tunnel profile is relined with concrete segments.
THREE MOBILE UNITS MOVE THROUGH THE TUNNEL
- Tunnel safety and tunnel lifetime improving equipment
- Time-saving through a mechanized working procedure with three independent operating units
- Multiple usage
- During construction work one-way traffic is still possible
ADVANTAGES OF TUNNEL BORING AND IMMERSED TUNNEL PROCEDURE. TIMBY tunnelling technology (patented by BTP) is based on the combination of Herrenknecht mechanized tunnelling equipment and the immersed tunnel method. Timby is time, cost and space-saving. Since only simple launch and target shafts are required, the impact for the environment is also reduced to a
minimum. Using segmental tunnel lining with TIMBY, interruptions of shipping traffic can be avoided as well.
SHAFTS WITH LARGE DIAMETERS (interior diameters of 4.5 – 15m) and depths of 25 to 80 meters can be sunk quickly, safely and economically using innovative Herrenknecht Vertical Shaft Sinking Machine technology (VSM). This process engineering offers a wide range of advantages compared to conventional shaft construction. Parallel, low-noise sinking and lining of shafts, as well as the modular machine design, guarantee rapid construction progress even on construction sites with restricted space.
MORE THAN 1,900 METERS OF SHAFTS SUNK USING HERRENKNECHT VSM TECHNOLOGY.
INNOVATIVE SHAFT CONSTRUCTION
- Ideal for the construction of access and ventilation shafts to inner-city metro stations
- Little space required for construction site facilities above ground
- Mechanized procedures offer a high level of occupational safety, cost savings and rapid shaft construction
- Low vibrations and noise levels during construction
- Working below the groundwater level without lowering the groundwater
HERENKNECHT HAS DEVELOPED A CONCEPT to drive offshore foundations into the ground in difficult conditions using Vertical Shaft Sinking Machines (VSM). The Herrenknecht VSM has already proved its versatility working in almost any geological conditions and below groundwater levels. Here, the new innovative concept involves installing a guide pipe from a temporary offshore platform stretching to the seabed; the VSM unit is braced in this pipe and sinks the shaft mechanically and safely.
EXCAVATING RATHER THAN PILE DRIVING
- VSM technology embeds the monopile more safely
- Very low noise – no need to keep marine animals away from the construction site
- Shaft foundations with dual use, for example for technical equipment
Further application: Bridge foundations.
UNDERGROUND PARKING FACILITIES FOR METROPOLITAN AREAS. The range of applications available with Herrenknecht Vertical Shaft Sinking Machines (VSM) also open up previously unimagined possibilities for urban planning. VSM technology and automatic parking systems come together to form the basis of the U-PARK® (Underground Parking) concept. Very deep shafts are sunk safely for the subsequent installation of fully-automatic parking facilities.
- PARKING SPACES FOR CONGESTED AREAS
Creation of car parking spaces specially suited for densely populated, congested areas and large cities - Installation of computer-controlled automatic parking systems based on the principle of high-rack storage
- Unmanned operation of the parking system, short waiting times and high degree of comfort for customers
CONSTRUCTION OF VERTICAL SHAFTS TO GREAT DEPTHS. Herrenknecht and the mining company Rio Tinto have collaborated to develop a highly-mechanized shaft boring machine (SBS) for exploring raw material deposits quickly and safely. The SBS can penetrate down to great depths of 2,000 meters, constructing shafts with diameters of up to 12 meters.
During boring, the cutting wheel of the SBS cuts the mountain like a circular saw, thus creating a slit with a depth of one and a half meters. In a second step, it rotates around the shaft’s longitudinal axis to cut the entire shaft profile. Following this, a vertical conveyor belt transports the excavated
material to an intermediate loading station while hydraulic gripper plates stabilize the system in the mountain. Personnel do not need to be in danger areas during any of these procedures, making the SBS system an extremely safe technology.
MECHANIZED SHAFT TUNNELING FOR ESCALATORS. The new inclined shaft machine realized a 105-meter stretch with a gradient of 30° down to the
Obvodny Kanal Metro station in St. Petersburg (Russia) at a depth of 65 meters. From the front, the machine looks like a conventional Earth Pressure Balance Shield, optimized for cohesive soils with high clay and silt content and low water permeability. But with a very unusual length of 35 meters, the internal machine logistics had to be completely redesigned. For the removal of the excavated
material, winches were installed to take the soil up and also the segments down to the erector. To ward off uncontrolled sinking of the machine, a new system of traction ropes and hydraulic cylinders was developed to keep it on course.
