GB190620322A - Improvements in Tunnel Shields. - Google Patents

Improvements in Tunnel Shields.

Info

Publication number
GB190620322A
GB190620322A GB190620322DA GB190620322A GB 190620322 A GB190620322 A GB 190620322A GB 190620322D A GB190620322D A GB 190620322DA GB 190620322 A GB190620322 A GB 190620322A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
chamber
jacks
tunnelling
pistons
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
Inventor
William Phillips Thompson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190620322A publication Critical patent/GB190620322A/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

Abstract

20,322. Thompson, W. P., [Prelini, C.]. Sept. 12. Tunnelling.-A tunnelling-shield is composed of two telescopic sections, each of which contains a hollow diaphragm and capable of being advanced independently of the other. The rear section A is advanced by means of a set of jacks E, the pistons of which bear against the lining of the tunnel; it contains the diaphragm D which encloses a space G forming a " de-compressing " chamber. The diaphragm is formed of a box girder C, which is bent to the circular or other cross-sectional form of the part A and is provided with steel plates d, d<1> on either side ; sliding doors h, h<1> are also provided near the base, and the whole is strengthened by means of internal girders e, f. The plates d' support a second set of jacks F used to advance the forward section B, the pistons of the jacks being connected to the second diaphragm H in order to prevent rotation of the shield. The front i of this section is hood-shaped and provided with a cutting-edge l. A platform I, which may support a rock drill, is supported on brackets in front of the second diaphragm H. Between the diaphragms is a safety chamber J into which the operators can retreat in case of accident; the chamber also serves as an air-lock within which sufficient pressure can be maintained to exclude water which may break through to the working chamber.
GB190620322D 1906-09-12 1906-09-12 Improvements in Tunnel Shields. Expired GB190620322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190620322T 1906-09-12

Publications (1)

Publication Number Publication Date
GB190620322A true GB190620322A (en) 1907-08-01

Family

ID=32434702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190620322D Expired GB190620322A (en) 1906-09-12 1906-09-12 Improvements in Tunnel Shields.

Country Status (1)

Country Link
GB (1) GB190620322A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425169A (en) * 1944-02-03 1947-08-05 Wilson Alford Donald Gratton Means for shield tunnelling
DE1240789B (en) * 1963-04-05 1967-05-24 Maurice Mauclet Device for driving a route or a shaft in sandy or water-containing soil
DE2109384A1 (en) * 1971-02-27 1973-06-07 Paproth & Co Bauunternehmung G METHOD OF MANUFACTURING UNDERGROUND STRUCTURES OF NOMINAL WIDTHS OF LESS THAN FOUR METERS IN THE SHIELD DRIVE AND DAMPER BLADE FOR THIS PROCESS
WO1979000159A1 (en) * 1977-09-27 1979-04-05 Locher & Cie Ag Device and process for driving galleries with a shield

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425169A (en) * 1944-02-03 1947-08-05 Wilson Alford Donald Gratton Means for shield tunnelling
DE1240789B (en) * 1963-04-05 1967-05-24 Maurice Mauclet Device for driving a route or a shaft in sandy or water-containing soil
DE2109384A1 (en) * 1971-02-27 1973-06-07 Paproth & Co Bauunternehmung G METHOD OF MANUFACTURING UNDERGROUND STRUCTURES OF NOMINAL WIDTHS OF LESS THAN FOUR METERS IN THE SHIELD DRIVE AND DAMPER BLADE FOR THIS PROCESS
WO1979000159A1 (en) * 1977-09-27 1979-04-05 Locher & Cie Ag Device and process for driving galleries with a shield

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