• 06/2020
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Thames Tideway Tunnel – Update 2020

<span class="zahl_bildunterschrift">1</span> | Thames Tideway overall project (CSO = combined sewer overflow) Credit/Quelle: Tideway
1 | Thames Tideway overall project (CSO = combined sewer overflow)
Credit/Quelle: Tideway
<span class="zahl_bildunterschrift">2</span> | Sinking of the 40 m deep Carnwath Road Riverside Shaft Credit/Quelle: BMB
2 | Sinking of the 40 m deep Carnwath Road Riverside Shaft
Credit/Quelle: BMB
<span class="zahl_bildunterschrift">3 | </span>Delivery of TBM components Credit/Quelle: BMB
3 | Delivery of TBM components
Credit/Quelle: BMB
<span class="zahl_bildunterschrift">4</span> | The fully assembled TBM on its way to the starting shaft Credit/Quelle: BMB
4 | The fully assembled TBM on its way to the starting shaft
Credit/Quelle: BMB
<span class="zahl_bildunterschrift">5</span> | Lowering the TBM with strand jacks Credit/Quelle: BMB
5 | Lowering the TBM with strand jacks
Credit/Quelle: BMB
<span class="zahl_bildunterschrift">6</span> | Water transport of segments Credit/Quelle: BMB
6 | Water transport of segments
Credit/Quelle: BMB
<span class="zahl_bildunterschrift">7 | </span>Test rig Credit/Quelle: BMB
7 | Test rig
Credit/Quelle: BMB
<span class="zahl_bildunterschrift">8</span> | Hammersmith formwork unit: Carriage and hydraulic spud bars Credit/Quelle: Kern Tunneltechnik
8 | Hammersmith formwork unit: Carriage and hydraulic spud bars
Credit/Quelle: Kern Tunneltechnik
<span class="zahl_bildunterschrift">9</span> | Screen of the Hammersmith control unt (SPS) Credit/Quelle: Kern Tunneltechnik
9 | Screen of the Hammersmith control unt (SPS)
Credit/Quelle: Kern Tunneltechnik
<span class="zahl_bildunterschrift">10</span> | Timber stop-end of the Frogmore formwork Credit/Quelle: Kern Tunneltechnik
10 | Timber stop-end of the Frogmore formwork
Credit/Quelle: Kern Tunneltechnik
<span class="zahl_bildunterschrift">11</span> | MNTLA logistics platform Credit/Quelle: Kern Tunneltechnik
11 | MNTLA logistics platform
Credit/Quelle: Kern Tunneltechnik
<span class="zahl_bildunterschrift">12 | </span>Full-round formwork unit for the main tunnel, factory acceptance Credit/Quelle: Kern Tunneltechnik
12 | Full-round formwork unit for the main tunnel, factory acceptance
Credit/Quelle: Kern Tunneltechnik

The Thames Tideway project has already been described in detail in tunnel issue 8/2016. Altogether six TBMs and several pipe jacking machines are currently at work on the 25 km long main tunnel and the connection tunnels of the new mega interceptor sewer in London. The depth of the tunnel system (25–80 m), the access only down shafts, material delivery and disposal on the Thames and the central inner-city location are daily challenges facing the tunnellers in the middle of the English metropolis. This article describes the current stat of the main construction works and the special features of the Thames Tideway Tunnel, especially the West contract.

The Thames Tideway Tunnel project is split into three separate geographical construction sections: West, Middle and East (Fig. 1). The MNTLA (Main Tunnel A) of the West contract extends from the Acton Stormwater Tank in the west of London and runs north of the Thames to the Carnwath Road riverside shaft in Fulham, where it joins the MNTLC (Main Tunnel C). This runs to the east into the suburb of Southwark near Tower Bridge. The East contract then connects at the Chambers Wharf shaft, with the MNTLD (Main Tunnel D) running toward Newham, where it connects to the Lee Tunnel, which was completed...

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