GB1381496A - Tunnelling machines - Google Patents

Tunnelling machines

Info

Publication number
GB1381496A
GB1381496A GB3530671A GB3530671A GB1381496A GB 1381496 A GB1381496 A GB 1381496A GB 3530671 A GB3530671 A GB 3530671A GB 3530671 A GB3530671 A GB 3530671A GB 1381496 A GB1381496 A GB 1381496A
Authority
GB
United Kingdom
Prior art keywords
shield
tunnelling
aperture
rotated
urged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3530671A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAM Nuttall Ltd
Original Assignee
Edmund Nuttall Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Edmund Nuttall Ltd filed Critical Edmund Nuttall Ltd
Priority to GB3530671A priority Critical patent/GB1381496A/en
Publication of GB1381496A publication Critical patent/GB1381496A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield

Abstract

1381496 Tunnelling machines EDMUND NUTTALL Ltd 1 Feb 1972 [27 July 1971] 35306/71 Heading E1F In the use of a tunnelling shield 1 fallen excavated spoil is urged onto a collecting surface 32 of the shield by the advance of the shield and is urged across the surface 32 to pass down through an aperture 33 in the surface by a pair of multi-bladed rotors 34a and 34b that are rotated about axes of rotation that are substantially normal to the surface and are on opposite sides of the aperture. The elements are contra-rotated at the same rate by hydraulic motors. Latches 37 are provided to prevent inadvertent rotation of the rotors. The excavating means of the referred to Specification 1381497 may be mounted in the shield.
GB3530671A 1971-07-27 1971-07-27 Tunnelling machines Expired GB1381496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3530671A GB1381496A (en) 1971-07-27 1971-07-27 Tunnelling machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3530671A GB1381496A (en) 1971-07-27 1971-07-27 Tunnelling machines

Publications (1)

Publication Number Publication Date
GB1381496A true GB1381496A (en) 1975-01-22

Family

ID=10376226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3530671A Expired GB1381496A (en) 1971-07-27 1971-07-27 Tunnelling machines

Country Status (1)

Country Link
GB (1) GB1381496A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109779639A (en) * 2019-01-03 2019-05-21 上海隧道工程有限公司 Suitable for wearing the anti-floating control method in existing major diameter tunnel in arenaceous stratum shield

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109779639A (en) * 2019-01-03 2019-05-21 上海隧道工程有限公司 Suitable for wearing the anti-floating control method in existing major diameter tunnel in arenaceous stratum shield

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee