WO1991011558A1 - Method for consolidating railway roadbeds in general and apparatus for implementing the method - Google Patents
Method for consolidating railway roadbeds in general and apparatus for implementing the method Download PDFInfo
- Publication number
- WO1991011558A1 WO1991011558A1 PCT/EP1991/000175 EP9100175W WO9111558A1 WO 1991011558 A1 WO1991011558 A1 WO 1991011558A1 EP 9100175 W EP9100175 W EP 9100175W WO 9111558 A1 WO9111558 A1 WO 9111558A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hole
- truck
- boring
- concrete mix
- railway
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B37/00—Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00 - E01B35/00
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
- E02D7/16—Scaffolds or supports for drivers
Definitions
- This invention relates to a method for consolidating railway roadbeds in general and an apparatus for implementing the method.
- An aspect of particular importance in terms of work directed towards railway operation improvement, with regard both to increased train speed and to increased passenger and goods carrying capacity, is the consolidation of railway roadbeds, which with continuous use and the passing of time tend to degrade due to vibration, freezing and thawing, water absorption, swelling, excessive deformation, etc.
- a further drawback is the need for access areas external to the embankment to be consolidated, such areas not always being available and in any event requiring expropriation or at least the obtaining of the necessary authorization.
- access areas external to the embankment In addi t ion , for part icular t ypes of embankment such access areas are not available with the result that the work involved requires the total interruption of the railway line.
- a further drawback is that current consolidation operations often require the embankment to be cut away to form a. working surface from which the work can be carried out, this inevitably further disturbing the stability of the embankment and resulting in long periods of limited train speed along a structure which is already in a state of unstable equilibrium.
- the object of the invention is to effect consolidation of railway roadbeds and embankment in general in a very simple, rapid, effective and economical manner, which in particular:
- the invention provides for the use of an apparatus comprising a truck mobile along the rails of the railway line and provided with:
- a boring unit comprising a substantially cylindrical boring tool provided with a boring bit
- Figure 1 is a. side view of a railway truck provided with a first embodiment of the apparatus for implementing the method of the invention, shown during transportation,
- Figure 2 is a plan view thereof
- FIG. 3 shows the rear end of the truck, with the apparatus in its working state
- Figure 4 is an enlarged view of the boring tool and its support structure
- Figure 5 is a plan view of the end of the railway truck on the line V-V of figure 3,
- Figure 6 is the same view as figure 5 during automatic advancement
- Figure 7 is a cross-section through the automatic truck moving device during its operation
- Figure 9 is a side view of a railway truck provided with a second embodiment of the apparatus for implementing the method of the invention, shown during transportat ion,
- Figure 10 is a plan view thereof
- Figure 11 is the same view as figure 10 but showing a modification thereto
- Figure 12 is a side view thereof in the working state
- Figure 13 is a plan view thereof
- Figures 14 to 17 are enlarged vertical sections showing four successive stages in the implementation of the second methos
- Figure 18 is a plan view of railway line embankment comprising piles and micropiles according to the invention.
- Figure 19 is a vertical section on the line XVIII-XVIII of figure 18.
- the pile insertion apparatus is mounted on a railway truck 1, for transposrtat ion along the railway line 2.
- this apparatus provided for effecting consolidation by "micropiles", ie piles having a length of between 100 cm and 150 cm and a diameter of about 15 cm, comprises two hydraulic boring units 3, each comprising a tubular support 4 which can be adjusted longitudinally relative to a counter-support 5, under the control of a hydraulic cylinder-piston unit 6.
- the counter-support 5 is hinged to a frame 7, to which it is also connected via a hydraulic cylinder-piston unit 8 or its inclination in the vertical plane, and is rotatable about the floor of the fruck 1 together with said frame 7 under the control of a third hydraul i c cylinder-piston unit 9.
- a hydraulic cylinder-piston unit 11 provided with a boring bit is slidable along the support 4, which is provided lowerly with a plate 4 for resting on the ground during working.
- a device for moving the truck comprises a telescopic frame 12 vertically mobile under the control of a hydraulic cylinder-piston unit 13 and provided with a lower cross- member 14 to which four self-centering hydraulic clamps 15 are applied to act on the rails of the railway line 2.
- the telescopic frame 12 is also connected to the railway truck 1 via a further longitudinal cylinder-piston unit 16, for its longitudinal movement.
- the railway truck is firstly positioned on the railway line 2 to correspond to the section to be consolidated. During this stage it is advantageous for the railway truck to form part of a train which also comprises further trucks for material, equipment and personnel transport, to provide total self- sufficiency in operation.
- the supports 4 for the two boring units 3 lie horizontally on the floor of the truck 1.
- the cylinder-piston units 8 are firstly operated to arrange the tubular supports 4 in their vertical working position.
- the cylinder-piston units 6 are then operated to lower the supports 4 relative to the counter- support 5, until their lower plate 10 rests on the ballast of the railway line 2.
- the cyl inder-piston units 9 are then operated to horizontally rotate the corresposnding frames 7 until the boring bit of each boring unit 3 is in the correct position for inserting a. micropile.
- the corresponding hydraulic cylinderpiston unit 11 is operated, by which it causes the bit to penetrate progressively firstly into the ballast and then into the embankment.
- the penetration into the ballast is accompanied by the penetration of a jacket 17 which surrounds the bit and prevents possible slippage of the ballast when the bit is extracted for filling the hole. This problem does not arise for the underlying embankment because of its cohesion and self-sustaining characteristics.
- the hole is filled by pouring into it through the metal jacket 17 a catalyzed mix prepared separately by suitably mixing together one or more types of sand, blast furnace slag and a specific setting agent. This filling is accomplished in several pourings, after each of which the previously poured mix is compacted by the boring bit.
- the cylinder-piston unit 13 is operated to lower the cross-member 14 such that the clamps 15 are able to clamp it to the rails 2.
- the longitudinal cylinder-piston unit 16 is operated to move the truck 1 along the railway line by a predetermined distance, after which the clamps 15 are released from the rails 2, the cross-member 14 is raised and the telescopic frame 12 returned to the truck 1, to arrange the apparatus for the next operating cycle.
- next micropile or rather the next pair of micropiles by the two boring units 3 it may be necessary depending on the position of this next pair relative to the previous pair (longitudinally aligned or at an angle) to rotate the rotatable frame 7 about the longitudinal axis of the truck 1, this being achieved by operating the cylinderpiston units 9.
- the operating sequence of the various cylinder-piston units to be controlled by computer, which would then provide the various commands required for the chosen operating cycle, the truck advancement movement and the mutual arrangement of successive micropiles.
- Figure 9 to 17 show a different embodiment of the apparatus according to the invention, suitable for inserting larger piles generally of between 300 and 750 cm in length and between 20 and 30 cm in diameter.
- the apparatus in this case comprises on a. railway truck
- the two cranes can be disposed on each side of the truck 21 (see figure 10) or on one and the same side (see figure 11) according to the particular form of the railroad.
- Each crane supports a vibrator 27 and a forming tube 28 for the pile to be formed.
- the lower end of the forming tube is provided with a double-valved closure device 29 (see figure 14-17).
- the railway truck preferably together with other trucks forming a train to allow totally self-sufficient operation is transferred onto the section of railway line to be consolidated, after which the two cranes are moved along together with their frames 23 by the respective cylinderpiston units, and then stabilized by the legs 26 on reaching their working position.
- the position of the truck 21 on the rails 2 and the position of each crane on the truck 21 are such that the two suspended forming tubes are vertical exactly above the point at which a pile is to be inserted.
- the vibrators 27 are operated so that each of these by acting on the underlying forming tube 28 drives it into the fround to the required depth, but without removing material.
- t he ca t a l yzed m i x composed as in the previous case of one or more types of sand, blast furnace slag and a setting agent, and made up preferably in a truck forming part of the train, is fed into the forming tube.
- the forming tube is extracted through successive distances, this lifting causing the lower valve device to open and a quantity of catalyzed mix to emerge corresponding to the extend of lifting.
- the forming tube 28 is slightly lowered to close the two valves and allow them to compact the underlying mix.
- a pile will have been obtained which is completely fixed into the ground and cooperates with other piles to provide the desired degree of consolidation.
- the piles can be formed simultaneously on both sides of the embankment (in the case of single track lines) or firstly on one side and then on the other (in the case of double track lines).
- piles and micropiles can be used simultaneously, the former being generally inserted into the embankment in a position below the ballast, and the latter also being inserted into the embankment but outside the ballast, as can be seen in figures 15 and 16.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT84106A/90 | 1990-02-02 | ||
IT84106A IT1239235B (en) | 1990-02-02 | 1990-02-02 | METHOD OF CONSOLIDATION OF RAILWAY SITES AND OF GENERAL SURVEYS AND EQUIPMENT TO PERFORM THE METHOD. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991011558A1 true WO1991011558A1 (en) | 1991-08-08 |
Family
ID=11324064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1991/000175 WO1991011558A1 (en) | 1990-02-02 | 1991-01-31 | Method for consolidating railway roadbeds in general and apparatus for implementing the method |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0515580A1 (en) |
AU (1) | AU7232991A (en) |
IT (1) | IT1239235B (en) |
PT (1) | PT96657A (en) |
WO (1) | WO1991011558A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3115512A1 (en) * | 2015-07-10 | 2017-01-11 | Keller Holding GmbH | Method for producing an in-situ concrete ramming pile and device for same |
CN107945264A (en) * | 2017-11-17 | 2018-04-20 | 中国铁路设计集团有限公司 | Roadbed three-dimensional modeling method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1634231A (en) * | 1921-02-17 | 1927-06-28 | Hiley Alfred | Construction of concrete piles or columns |
GB959646A (en) * | 1963-01-24 | 1964-06-03 | Joseph Song Ling Miu | An improved method and means of forming concrete piles |
AT296168B (en) * | 1968-11-05 | 1972-02-10 | Ignaz Dipl Ing Zeissl | Process for the production of an in-situ concrete pile produced in sections by means of a diesel pile hammer and a pile driver |
FR2172626A5 (en) * | 1972-02-14 | 1973-09-28 | Frankignoul Pieux Armes | |
US4018056A (en) * | 1975-07-18 | 1977-04-19 | Interpile Usa, Inc. | Apparatus for forming cast-in-place caseless concrete piles and the like |
US4124081A (en) * | 1975-05-07 | 1978-11-07 | Foresight Industries | Post driving machine |
EP0225420A1 (en) * | 1985-12-13 | 1987-06-16 | Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. | Apparatus for driving foundation pipes or similar objects into soil layers by a vibration device |
-
1990
- 1990-02-02 IT IT84106A patent/IT1239235B/en active IP Right Grant
-
1991
- 1991-01-31 EP EP19910912988 patent/EP0515580A1/en not_active Withdrawn
- 1991-01-31 AU AU72329/91A patent/AU7232991A/en not_active Abandoned
- 1991-01-31 WO PCT/EP1991/000175 patent/WO1991011558A1/en not_active Application Discontinuation
- 1991-02-01 PT PT96657A patent/PT96657A/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1634231A (en) * | 1921-02-17 | 1927-06-28 | Hiley Alfred | Construction of concrete piles or columns |
GB959646A (en) * | 1963-01-24 | 1964-06-03 | Joseph Song Ling Miu | An improved method and means of forming concrete piles |
AT296168B (en) * | 1968-11-05 | 1972-02-10 | Ignaz Dipl Ing Zeissl | Process for the production of an in-situ concrete pile produced in sections by means of a diesel pile hammer and a pile driver |
FR2172626A5 (en) * | 1972-02-14 | 1973-09-28 | Frankignoul Pieux Armes | |
US4124081A (en) * | 1975-05-07 | 1978-11-07 | Foresight Industries | Post driving machine |
US4018056A (en) * | 1975-07-18 | 1977-04-19 | Interpile Usa, Inc. | Apparatus for forming cast-in-place caseless concrete piles and the like |
EP0225420A1 (en) * | 1985-12-13 | 1987-06-16 | Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. | Apparatus for driving foundation pipes or similar objects into soil layers by a vibration device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3115512A1 (en) * | 2015-07-10 | 2017-01-11 | Keller Holding GmbH | Method for producing an in-situ concrete ramming pile and device for same |
CN107945264A (en) * | 2017-11-17 | 2018-04-20 | 中国铁路设计集团有限公司 | Roadbed three-dimensional modeling method |
CN107945264B (en) * | 2017-11-17 | 2020-12-29 | 中国铁路设计集团有限公司 | Three-dimensional modeling method for roadbed |
Also Published As
Publication number | Publication date |
---|---|
IT1239235B (en) | 1993-09-28 |
IT9084106A1 (en) | 1991-08-03 |
AU7232991A (en) | 1991-08-21 |
EP0515580A1 (en) | 1992-12-02 |
IT9084106A0 (en) | 1990-02-02 |
PT96657A (en) | 1991-10-31 |
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