"chalk" nach Englisch mit Beispielen - Kollokationen-Wörterbuch Englisch
- Known as chalk marl, or blue chalk, it is soft enough to scratch with a fingernail but holds together until the tunnel linings are pressed into place.
- On the English side a marshalling area was below the top of Shakespeare Cliff, and the New Austrian Tunnelling method (NATM) was first applied in the chalk marl here.
- While on the English side the chalk marl ran along the entire length of the tunnel, on the French side a length of had variable and difficult geology.
- The park was created by using 4.9 million cubic metres of chalk marl from the Channel Tunnel excavations and is found at the bottom of a section of the White Cliffs of Dover.
- Above her was the metal skin of the train, the prefabricated concrete lining of the tunnel, about 45 yards of chalk marl seabed, and the English Channel.
- The chalk marl showed no signs of failing or collapsing but colliery arches were installed as a precaution.
- As a result the castle moats had to be cut over 10 metres deep into the layer of chalk marl.
- The channel floor is formed of a relatively soft variety of limestone called chalk marl, which Mr. Kirkland said "is beautiful stuff to cut."
- There, the chalk marl plunges away from the tunnel path, leaving the machines to slice through five kilometers of a highly fractured chalk laden with water under pressure.
- The layer is divided into white chalk, grey chalk and chalk marl, the last being virtually impermeable and highly suitable for mechanical cutting.
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