EP2004956A1 - Tunnel supported on bearing blocks - Google Patents

Tunnel supported on bearing blocks

Info

Publication number
EP2004956A1
EP2004956A1 EP07701087A EP07701087A EP2004956A1 EP 2004956 A1 EP2004956 A1 EP 2004956A1 EP 07701087 A EP07701087 A EP 07701087A EP 07701087 A EP07701087 A EP 07701087A EP 2004956 A1 EP2004956 A1 EP 2004956A1
Authority
EP
European Patent Office
Prior art keywords
tunnel
bearing blocks
exterior
supported
tube
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.)
Withdrawn
Application number
EP07701087A
Other languages
German (de)
French (fr)
Inventor
Santos Silvino Pompeu
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
Publication of EP2004956A1 publication Critical patent/EP2004956A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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
    • E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/006—Lining anchored in the rock
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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

Definitions

  • tunnel boring machines The execution of tunnels with, tunnel boring machines is a solution increasingly used for the construction of infrastructures for roadway and railway transportation systems.
  • the conventional solution of executing a tunnel with a tunnel boring machine consists of excavating the tunnel with the referred machine, which excavates the soil and places the precast elements which will form the walls of the referred tunnel.
  • the present invention constitutes an innovative solution for the construction of tunnels of the roadway and the railway types, executed with tunnel boring machines, when the referred tunnels are executed in weak soils (e.g., mud), which will function as a bridge within the soil.
  • weak soils e.g., mud
  • the solution also allows the strengthening of existing tunnels, using the existing tunnel as a formwork for the execution of the interior strengthening.
  • Figure 1 shows a schematic perspective of the tunnel.
  • Figure 2 shows the transversal section of the tunnel and one support.
  • Figure 3 shows the longitudinal section of the tunnel and two supports.
  • Figure 4 shows the plan of the tunnel and two supports .
  • the tunnel is constituted by two tubes; an exterior tube (3) , which is built by the tunnel boring machine in the weak soil, and an interior tube (4), which is executed later on, inside the exterior tube.
  • the tunnel is supported by bearing blocks (5) executed in the weak soil (1) and regularly spaced along the axis of the tunnel.
  • the exterior tube (3) is formed by precast elements, which are mounted by the tunnel boring machine, which bores through the bearing blocks (5) ; it has no resistant function and acts as exterior formwork for the execution of the interior tube.
  • the interior tube (4) is built inside the exterior tube, using the latter as formwork; the former possesses the necessary strength to resist the transversal and longitudinal actions that may act on the tunnel, without taking into account the strength of the exterior tube (3) .
  • the bearing blocks (5) are extended downwards until the stiff soil (2) through resistant elements with great horizontal flexibility (6), in order to resist vertical loads, while allowing for horizontal movements of the tunnel during an earthquake-

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The tunnel supported on bearing blocks is a tunnel to be executed in weak soils (1), which is constituted by two tubes: an exterior tube (3), formed by- precast elements, which are mounted by a tunnel boring machine, and an interior tube (4), which is built using the exterior one as the exterior formwork and constitutes the resistant element of the tunnel, both being supported by bearing blocks (5), regularly spaced along the axis of the tunnel. The bearing blocks (5) are extended downwards until the stiff soil (2) through resistant elements with great horizontal flexibility (6) in order to resist vertical loads, while allowing for horizontal movements of the tunnel during an earthquake.

Description

DESCRIPTION TUNNEL SUPPORTED ON BEARING BLOCKS
The former technique
The execution of tunnels with, tunnel boring machines is a solution increasingly used for the construction of infrastructures for roadway and railway transportation systems.
The conventional solution of executing a tunnel with a tunnel boring machine consists of excavating the tunnel with the referred machine, which excavates the soil and places the precast elements which will form the walls of the referred tunnel.
This solution of tunnel building is appropriate for stiff soils, because the tunnels obtained in this way have their stability assured by the strength of the surrounding soil, and so they do not need to have significant strength in both the transversal direction and the direction of the tunnel axis.
In the case of weak soils, the execution of tunnels with a tunnel boring machine is unreliable, because, in the tunnel thus formed, the connections between the precast elements are very weak; hence the strength of the tunnel is low, so it has the risk of sinking, or collapsing, particularly during an earthquake.
Technical domain of the invention
The present invention constitutes an innovative solution for the construction of tunnels of the roadway and the railway types, executed with tunnel boring machines, when the referred tunnels are executed in weak soils (e.g., mud), which will function as a bridge within the soil. The solution also allows the strengthening of existing tunnels, using the existing tunnel as a formwork for the execution of the interior strengthening. Description of the figures
The present invention is illustrated in figures 1, 2, 3 and 4. Figure 1 shows a schematic perspective of the tunnel. Figure 2 shows the transversal section of the tunnel and one support. Figure 3 shows the longitudinal section of the tunnel and two supports. Figure 4 shows the plan of the tunnel and two supports .
Detailed description of the invention
The tunnel is constituted by two tubes; an exterior tube (3) , which is built by the tunnel boring machine in the weak soil, and an interior tube (4), which is executed later on, inside the exterior tube.
The tunnel is supported by bearing blocks (5) executed in the weak soil (1) and regularly spaced along the axis of the tunnel.
The exterior tube (3) is formed by precast elements, which are mounted by the tunnel boring machine, which bores through the bearing blocks (5) ; it has no resistant function and acts as exterior formwork for the execution of the interior tube.
The interior tube (4) is built inside the exterior tube, using the latter as formwork; the former possesses the necessary strength to resist the transversal and longitudinal actions that may act on the tunnel, without taking into account the strength of the exterior tube (3) .
The bearing blocks (5) are extended downwards until the stiff soil (2) through resistant elements with great horizontal flexibility (6), in order to resist vertical loads, while allowing for horizontal movements of the tunnel during an earthquake-
Lisbon, January 10, 2007

Claims

CLAIMSTUNNEL SUPPORTED BY BEARING BLOCKS
1. Tunnel to be executed in weak soils, characterized by- being constituted by two tubes: an exterior tube (3), formed by precast elements, which are mounted by a tunnel boring machine, and an interior tube (4) , which is built using the exterior one as the exterior formwork and constitutes the resistant element of the tunnel, both being supported by bearing blocks (5) , regularly spaced along the axis of the tunnel -
2. Tunnel, according to claim 1, characterized by the bearing blocks (5) being extended downwards until the stiff soil (2) through resistant elements with great horizontal flexibility (6), in order to resist vertical loads, while allowing for horizontal movements of the tunnel during an earthquake.
Lisbon, January 10, 2007
EP07701087A 2006-01-16 2007-01-15 Tunnel supported on bearing blocks Withdrawn EP2004956A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT103421A PT103421B (en) 2006-01-16 2006-01-16 IMPROVED SEISMIC BEHAVIOR TUNNEL.
PCT/PT2007/000003 WO2007111520A1 (en) 2006-01-16 2007-01-15 Tunnel supported on bearing blocks

Publications (1)

Publication Number Publication Date
EP2004956A1 true EP2004956A1 (en) 2008-12-24

Family

ID=37851047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07701087A Withdrawn EP2004956A1 (en) 2006-01-16 2007-01-15 Tunnel supported on bearing blocks

Country Status (6)

Country Link
US (1) US20090136299A1 (en)
EP (1) EP2004956A1 (en)
JP (1) JP2009542936A (en)
KR (1) KR20090007372A (en)
PT (1) PT103421B (en)
WO (1) WO2007111520A1 (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330121A (en) * 1965-03-09 1967-07-11 Andrew C Tait Drain tile support block
US3568455A (en) * 1968-12-23 1971-03-09 Robert E Mclaughlin Method of laying pipe in or on a bed of particle material or in a trench
JPS4888742A (en) * 1972-02-25 1973-11-20
DK191180A (en) * 1979-05-23 1980-11-24 Coyne & Bellier PROCEDURE AND ARRANGEMENT FOR ANCHORING CABLES FOR EXTRA PIPE LINE AT THE SEA
US4607889A (en) * 1984-11-29 1986-08-26 Daiho Construction Co., Ltd. Shield tunnel boring machine
JPH02128098A (en) * 1988-11-08 1990-05-16 Maeda Corp Method of shield lining construction
US5007768A (en) * 1990-04-17 1991-04-16 Waller George W Anchoring structure for underground pipes
JPH0493430A (en) * 1990-08-09 1992-03-26 Maeda Corp Floating prevention method for underground structure
JPH0748851A (en) * 1993-08-09 1995-02-21 Mitsui Constr Co Ltd Underwater tunnel
US5735637A (en) * 1996-06-03 1998-04-07 Abt, Inc. Method and apparatus for supporting and anchoring drainage channel sections
JP2002013139A (en) * 2000-06-28 2002-01-18 Kajima Corp Flexible pile, method of installing flexible pile, and support construction for structure
US6450736B1 (en) * 2001-04-27 2002-09-17 Phillips Petroleum Company Movable supports for pipelines
JP3876278B2 (en) * 2001-12-13 2007-01-31 新日鉄マテリアルズ株式会社 Easy-cut tunnel segment structure
JP4439948B2 (en) 2004-03-08 2010-03-24 株式会社熊谷組 Advance support and construction method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007111520A1 *

Also Published As

Publication number Publication date
PT103421B (en) 2008-07-16
JP2009542936A (en) 2009-12-03
PT103421A (en) 2007-07-31
WO2007111520A1 (en) 2007-10-04
KR20090007372A (en) 2009-01-16
US20090136299A1 (en) 2009-05-28

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