EP0288707B1 - Bouclier de percement sous pression du sol - Google Patents
Bouclier de percement sous pression du sol Download PDFInfo
- Publication number
- EP0288707B1 EP0288707B1 EP88103959A EP88103959A EP0288707B1 EP 0288707 B1 EP0288707 B1 EP 0288707B1 EP 88103959 A EP88103959 A EP 88103959A EP 88103959 A EP88103959 A EP 88103959A EP 0288707 B1 EP0288707 B1 EP 0288707B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- earth
- pressure
- pressure shield
- behind
- liquid
- 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 - Lifetime
Links
- 239000002689 soil Substances 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 9
- 238000009412 basement excavation Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 34
- 239000000463 material Substances 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000005641 tunneling Effects 0.000 description 10
- 239000000725 suspension Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000009189 diving Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
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
- E21D9/06—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
- E21D9/0875—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 with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket
- E21D9/0879—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 with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket the shield being provided with devices for lining the tunnel, e.g. shuttering
Definitions
- the invention relates to an earth pressure shield with a front working chamber formed by a partition and having a dismantling tool standing annular space is formed and from the extracted soil material can be removed with the aid of a conveying unit, at least one liquid line from a liquid compartment with level control and liquid supply being guided through the annular space to a liquid outlet open to the removal tool.
- the partial wall forms a stiffening ring space with a triangular cross section, into which soil material mixed with liquid can enter, the corresponding liquid lines being able to clog.
- Tunnels are driven into the loose soil with the help of tunneling machines.
- the partitioned front part of the tunneling machine is preferably filled with a liquid which is under an adjustable pressure.
- the excavation device mainly a cutting wheel, is located in this partitioned part, with which the soil is loosened. It then falls into the support liquid and is pumped out of the partitioned area together with it and fed to a separation system. There, the ground is separated from the support fluid and the support fluid is pumped again into the front part of the tunneling machine.
- This method has proven itself, especially if an immersed wall almost reaching to the bottom is installed in the partitioned part of the tunneling machine, the so-called working chamber, and an adjustable compressed air cushion for a constant pressure of the supporting fluid at the rear part, the working chamber divided by the immersed wall Local face provides.
- the stability of the working face in a non-cohesive loose soil is only guaranteed with a constant support pressure.
- the pressure cushion reduces pressure fluctuations that arise when the volume of the pumped support liquid enriched with soil material does not correspond exactly to the volume of the cleaned liquid that is supplied again.
- pressure transducers are installed in the rear wall of the working chamber in order to obtain a more reliable, direct statement about the support pressure in the working chamber.
- these pressure load cells are usually unreliable measuring instruments. They are often bridged by the relatively rigid floor material. In addition, they only provide information about the pressure in a very limited local area.
- the invention has for its object to drive tunnels in cohesive: loose soil and thereby achieve reliable support of the working face.
- the earth pressure shield of the type mentioned behind the working chamber or the annular space formed with a baffle as a partial wall with the help of a bulkhead in a liquid compartment in its lower part and in its upper part through an opening in the partition with the bulkhead space connected to the head region of the annular space is provided.
- a further partitioned space is therefore created behind the working chamber which is sealed off in the front part of the tunneling machine and in which a baffle wall is arranged in particular. It is penetrated by the drive of the cutting wheel, the compressed air lock for climbing the working chamber, any mixing devices and the conveyor unit, e.g. B. a screw conveyor.
- the lower, much larger part of this bulkhead space is filled with water or a suspension, the upper part with compressed air, which, because of the upper connection to the compressed air cushion behind the diving wall, is under the same predetermined pressure, which acts on the floor material behind the diving wall.
- the water or the suspension leads through the compressed air-filled upper part of the bulkhead and through the compressed air cushion arranged behind the baffle in the ridge area of the front part of the working chamber.
- the feeds of water or a suspension which supply the space through which the cutting tools pass through the cutting wheel, are also connected to the water-filled, partitioned space.
- the compressed air cushion which is regulated with a predetermined pressure, ensures the same constant pressure on the floor material behind the baffle wall and the water or suspension in the partitioned part. Measuring and control systems ensure that the level of the soil material and that of the water are at approximately the same level.
- the shear resistance of the floor material in the working chamber now prevents the predetermined support pressure in the compressed air cushion from being transferred to the working face, especially in the sensitive ridge area.
- a zone of low pressure is therefore created there, into which water or suspension then flows via the pipeline from the sealed-off rear space into the ridge area of the front part of the working chamber.
- a check valve only opens if the specified support pressure has not been reached there.
- the water or the suspension under the specified support pressure flows through the supply lines in the cutting wheel into the space in front of the cutting wheel which is passed through by the cutting tools.
- the liquid under the specified support pressure ensures the constant support pressure at the working face.
- the viscosity of the soil material is reduced and homogenized by the liquid which is mixed with the soil material by mixing tools.
- the shear resistance gradually decreases to such an extent that the pressure transfer of the support pressure from the gas pressure cushion gradually reaches the ridge area. Then the liquid flow is interrupted, it only starts again when the support pressure in the roof drops below the pressure of the gas cushion due to an increased shear resistance in the floor material.
- the automatic pressure control through the gas pressure cushion not only ensures a constant support pressure for the working face, especially in the ridge area, but also an automatic stabilization of the soil material to be removed. Mixing and agitators behind the baffle also ensure a largely homogeneous mixing of the soil material with the added liquid.
- the regulated compressed air supply is guided through the bulkheads into the bulkhead space.
- at least one stirring unit is expediently arranged in the lower part of the working chamber behind the baffle.
- the liquid outlet is formed by a check valve in order not to exceed a predetermined support pressure.
- This check valve preferably consists of a perforated metal plate, which is covered on its free side with a slotted rubber or plastic plate.
- a level control can work with the help of a conveyor unit.
- the earth pressure shield shown in the figures initially has a front working chamber 2 formed by a partition 1, in which a removal tool 3 in the form of a cutting wheel works.
- a baffle 4 which is connected in its foot region to the part of the working chamber 2 which has the dismantling tool 3 and is operatively connected in its head region to a regulated compressed air supply 6.
- Extracted soil material can be removed with the aid of a conveyor unit 7 in the form of a screw conveyor.
- Two liquid lines 8 are guided from a liquid compartment 9 with level control 10 and liquid supply 11 through the annular space 5 to a liquid outlet 12 which is open to the removal tool 3.
- the liquid regularly consists of water or a support suspension (bentonite). Behind the working chamber 2 or the annular space 5, a bulkhead 13 is provided with the aid of a bulkhead 13, which receives or forms the liquid compartment 9 in its lower part and is connected in its upper part through an opening 15 in the partition 1 to the head region of the annular space 5 is.
- the regulated compressed air supply 6 is guided through the bulkheads 13 into the bulkhead space 14.
- two stirring units 17 are arranged behind the baffle 4 next to a drive axis 16 of the removal tool 3.
- the liquid outlet 12 is formed by a check valve 18.
- this check valve 18 is formed by a perforated metal plate 19 which is covered on its free side with a slotted rubber or plastic plate 20. If there is excess pressure in the liquid lines 8, the liquid exits through the metal plate 19 and the slotted rubber or plastic plate 20. If the back pressure is higher, the slotted rubber or plastic plate 20 automatically keeps the perforated metal plate 19 closed.
- the part of the working chamber 2 lying behind the baffle 4 is provided with a level control 21 which uses the conveying unit 7 as an actuator.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3714617 | 1987-05-01 | ||
DE3714617 | 1987-05-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0288707A1 EP0288707A1 (fr) | 1988-11-02 |
EP0288707B1 true EP0288707B1 (fr) | 1990-11-14 |
Family
ID=6326677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88103959A Expired - Lifetime EP0288707B1 (fr) | 1987-05-01 | 1988-03-12 | Bouclier de percement sous pression du sol |
Country Status (6)
Country | Link |
---|---|
US (1) | US4844656A (fr) |
EP (1) | EP0288707B1 (fr) |
JP (1) | JPH0613832B2 (fr) |
CN (1) | CN1008827B (fr) |
DE (1) | DE3861048D1 (fr) |
DK (1) | DK234188A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023109996B3 (de) | 2023-04-20 | 2024-05-02 | Herrenknecht Aktiengesellschaft | Tunnelbohrmaschine |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1331025C (fr) * | 1989-02-15 | 1994-07-26 | Shohei Chida | Traceuse de galerie non circulaire munie de trepans secondaires a position variable |
US5127711A (en) * | 1991-04-08 | 1992-07-07 | The Robbins Company | Hopper and hood combination for tunneling machine and tunneling machine having the same |
US5203614A (en) * | 1991-06-17 | 1993-04-20 | The Robbins Company | Tunneling machine having liquid balance low flow slurry system |
DE4415399C2 (de) * | 1994-05-03 | 2003-10-30 | Putzmeister Ag | Anordnung zum Vortrieb eines Tunnel- oder Abwasserrohrs |
EP0768447A1 (fr) * | 1995-10-09 | 1997-04-16 | Smet-Tunnelling N.V. | Procédé et machine avec bouclier pour le percements de tunnels |
ATE210242T1 (de) * | 1996-09-03 | 2001-12-15 | Hitachi Construction Machinery | Tunnelvortriebsmaschine und herstellungsverfahren |
ATE254238T1 (de) * | 1997-09-02 | 2003-11-15 | Riccardo Dr Bernasconi | Verfahren zur erstellung eines tunnels |
DE50101684D1 (de) * | 2000-07-12 | 2004-04-22 | Hochtief Ag Hoch Tiefbauten | Schildvortriebsmaschine für den Tunnelbau |
CN105003165B (zh) * | 2015-08-21 | 2018-03-30 | 中国船舶工业集团公司第七〇八研究所 | 一种轻型管线组合窗 |
JP6370954B1 (ja) * | 2017-03-29 | 2018-08-08 | アイレック技建株式会社 | 泥濃式推進工法に用いる掘進機 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US249557A (en) * | 1881-11-15 | truesdell | ||
DE93519C (fr) * | ||||
US1530113A (en) * | 1924-08-04 | 1925-03-17 | Bessemer Gas Engine Company | Valve |
DE1203301B (de) * | 1963-02-16 | 1965-10-21 | Demag Ag | Vortriebsschild fuer den Tunnelbau mit einer umlaufenden Fraesscheibe |
US3266257A (en) * | 1963-05-31 | 1966-08-16 | Robbins & Assoc James S | Shield tunneling method and mechanism |
DE1222099B (de) * | 1963-11-30 | 1966-08-04 | Fries Sohn J S | Doppelte Luftschleuse fuer den Drucklufttunnelbau |
DE2227083C3 (de) * | 1972-06-03 | 1981-07-30 | Wayss & Freytag Ag, 6000 Frankfurt | Schild für den mechanischen Tunnelvortrieb mit flüssigkeitsgestützter Ortsbrust |
DE2245501C3 (de) * | 1972-09-15 | 1975-10-16 | Nishimatsu Construction Co., Ltd., Tokio | Verfahren zum Regeln des Wasserdrucks in einem zur Ortsbrust hin offenen Arbeitsraum bei einem Schildvortrieb-Bauverfahren |
GB1406276A (en) * | 1972-12-08 | 1975-09-17 | Stelmo Ltd | Tunnelling shields |
GB1456538A (en) * | 1974-03-28 | 1976-11-24 | Coplastix Ltd | Fluid flow control valves |
AT355084B (de) * | 1975-08-05 | 1980-02-11 | Gewerk Eisenhuette Westfalia | Vortriebsschild, insbesondere verbauschild mit vorpressbaren vortriebsmessern |
JPS5246634A (en) * | 1975-10-13 | 1977-04-13 | Tekken Constr Co | Shield excavator |
US4165129A (en) * | 1977-11-17 | 1979-08-21 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Shield tunneling machine and method |
JPS5814920B2 (ja) * | 1978-06-27 | 1983-03-23 | 株式会社熊谷組 | シ−ルドトンネル掘進装置 |
DE2926288C2 (de) * | 1979-06-29 | 1986-04-17 | Wayss & Freytag Ag, 6000 Frankfurt | Einrichtung zum Bodenabbau bei Schildvortrieben mit flüssigkeitsgestützer Ortsbrust |
DE2952744C2 (de) * | 1979-12-29 | 1985-01-10 | Bade & Theelen Gmbh, 3160 Lehrte | In der Richtung lenkbarer Schildmantel einer Vortriebsmaschine |
DE3118523A1 (de) * | 1980-05-21 | 1982-12-02 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Gleichlaufsteuerung fuer die hydraulischen messerzylinder eines messerschildes |
DE3403890C1 (de) * | 1984-02-04 | 1985-03-14 | Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen | Foerdereinrichtung fuer eine Vortriebsmaschine fuer Tunnel und Strecken |
DE3418180C2 (de) * | 1984-05-16 | 1994-12-15 | Holzmann Philipp Ag | Vortriebsschild |
US4607889A (en) * | 1984-11-29 | 1986-08-26 | Daiho Construction Co., Ltd. | Shield tunnel boring machine |
US4569208A (en) * | 1984-12-07 | 1986-02-11 | Buildex Incorporated | Pressure relief port |
DE3446895A1 (de) * | 1984-12-21 | 1986-07-03 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Messerschildvortriebseinrichtung |
FR2585067B1 (fr) * | 1985-07-19 | 1987-12-11 | Gtm Ets Sa | Bouclier de creusement de galeries souterraines a grande profondeur |
DE3533425C1 (de) * | 1985-09-19 | 1986-10-30 | Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen | Stuetzfluessigkeitsdruckregelung fuer eine Schildvortriebsmaschine |
-
1987
- 1987-07-29 CN CN87105328A patent/CN1008827B/zh not_active Expired
-
1988
- 1988-02-17 JP JP63032966A patent/JPH0613832B2/ja not_active Expired - Lifetime
- 1988-03-12 DE DE8888103959T patent/DE3861048D1/de not_active Expired - Fee Related
- 1988-03-12 EP EP88103959A patent/EP0288707B1/fr not_active Expired - Lifetime
- 1988-03-30 US US07/175,191 patent/US4844656A/en not_active Expired - Fee Related
- 1988-04-28 DK DK234188A patent/DK234188A/da not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023109996B3 (de) | 2023-04-20 | 2024-05-02 | Herrenknecht Aktiengesellschaft | Tunnelbohrmaschine |
Also Published As
Publication number | Publication date |
---|---|
DK234188A (da) | 1988-11-02 |
US4844656A (en) | 1989-07-04 |
JPS63280193A (ja) | 1988-11-17 |
DE3861048D1 (de) | 1990-12-20 |
CN1008827B (zh) | 1990-07-18 |
DK234188D0 (da) | 1988-04-28 |
EP0288707A1 (fr) | 1988-11-02 |
CN87105328A (zh) | 1988-12-28 |
JPH0613832B2 (ja) | 1994-02-23 |
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