EP3653795B1 - Enceintes de la fouille de fondation - Google Patents

Enceintes de la fouille de fondation Download PDF

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Publication number
EP3653795B1
EP3653795B1 EP19180865.8A EP19180865A EP3653795B1 EP 3653795 B1 EP3653795 B1 EP 3653795B1 EP 19180865 A EP19180865 A EP 19180865A EP 3653795 B1 EP3653795 B1 EP 3653795B1
Authority
EP
European Patent Office
Prior art keywords
water
excavation
enclosure
sheet piles
hole
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.)
Active
Application number
EP19180865.8A
Other languages
German (de)
English (en)
Other versions
EP3653795A3 (fr
EP3653795A2 (fr
Inventor
André Mathieu
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.)
Matthaei Wasserbau & Co KG GmbH
Original Assignee
Matthaei Wasserbau & Co KG GmbH
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.)
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Publication date
Application filed by Matthaei Wasserbau & Co KG GmbH filed Critical Matthaei Wasserbau & Co KG GmbH
Publication of EP3653795A2 publication Critical patent/EP3653795A2/fr
Publication of EP3653795A3 publication Critical patent/EP3653795A3/fr
Application granted granted Critical
Publication of EP3653795B1 publication Critical patent/EP3653795B1/fr
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Classifications

    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/14—Sealing joints between adjacent sheet piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/02—Restraining of open water
    • E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • E02D19/185—Joints between sheets constituting the sealing aprons
    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • 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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/03—Prefabricated parts, e.g. composite sheet piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8833—Floating installations

Definitions

  • the present invention relates in particular to temporary excavation pit enclosures to prevent drilling fluid or drill cuttings mixed with drilling fluid from getting into the surrounding soil, in particular mud flats, or water in the area of water-side drilling exit points, in particular horizontal drillings, in a body of water, in particular in the Wadden Sea.
  • the zero-discharge principle applies to the target areas of the boreholes in the mudflats, which means that, despite any clearance certificates that may be available, no drilling cuttings or drilling fluid mixed with drilling fluid may get into the water or remain there. These substances are to be collected by the excavation pit enclosures, pumped out and transported ashore.
  • WO 01/71106 A1 discloses a safe dredging system and water treatment vessel. It is used to remove contaminated soil from the bottom of lakes.
  • WO 2015/020520 A1 relates to a dredging or deepening installation.
  • the installation includes a float that defines an operating area, a dredge or suction pipe constructed to remove material from the bottom in the operating area, and a screen that, in use, is adjacent to the operating area of the dredge or suction pipe or positioned relative to a direction of flow in the body of water or bodies of water at least upstream thereof and which, in use, prevents the spreading of soil material removed during dredging with the dredger or suction with the suction pipe or the deepening of the soil, the float selectively lowerable and sized to be lowered onto and into the bottom of the body of water and in the lowered position forms the screen, having a scraper located on or at an underside of the float and in the operative area.
  • U.S. 2002/059740 A1 relates to a dredging system for removing material from a lending point for transport to a disposal site, the dredging system comprising: a motorized vessel positioned above a lending point, at least one dredge shoe extendable from the vessel to a water bed used for dredging to dredge material to a preselected depth from the bottom, a power source located on the vessel in operative connection with the dredge shoe to draw the material into the shoe and transport it through a conduit to a disposal site, and a dredge propulsion system fitted with connected to the ship for moving the ship and the dredge shoe along a dredge path.
  • the present invention is therefore based on the object of enabling faster erection of such excavation pit enclosures, moreover with less transport and/or equipment costs.
  • this object is achieved by an in particular temporary construction pit enclosure to prevent drilling fluid or drill cuttings mixed with drilling fluid from getting into the surrounding soil, in particular mud flats, or water in the area of water-side drilling exit points, in particular horizontal drillings, in a body of water, in particular in the Wadden Sea 1 solved.
  • the hole is a central, preferably square, hole.
  • gantry crane with a drive, especially trolley, with pulley, a hydraulic cylinder and a linkage for mounting the hydraulic cylinder to the carriage, a weight being movably attached or attachable to the hydraulic cylinder on the carriage to press threaded sheet piles into the seabed.
  • the pulley of the drive is electrically operated.
  • the gantry crane has two running gears, in particular trolleys, with pulley blocks for threading in the sheet piles.
  • the pulley blocks for threading are operated electrically and/or the sheet piles are made of plastic.
  • the swimming platform has several box-shaped coupling pontoons.
  • the coupling pontoons can be cuboid.
  • one of the guide beams is located in each corner of the hole in the swim platform.
  • the guide beams are provided with locks into which the sheet piles engage.
  • the sheet piles engage in one another by means of longitudinal edge formations of complementary shape, with one of the two longitudinal edge formations being T-shaped and the other of the two longitudinal edge formations being formed with a receiving groove for the T-shaped longitudinal edge formation, with an elastic, preferably reusable Sealing element is arranged in the longitudinal connection area between two adjacent sheet piles on the inside of the excavation enclosure so that it seals the receiving groove against the ingress of drilling fluid or drill cuttings mixed with drilling fluid from the inside of the excavation enclosure.
  • the present invention is based on the surprising finding that weight can be saved through the use of light sheet piles and that in principle only one transport aisle is required for the erection of the excavation enclosure by means of a special floating platform with the appropriate equipment for the materials and equipment required for erecting an excavation enclosure .
  • a weight can be raised and lowered to force the sheet piles into the seabed, rather than hammering them in with an air hammer.
  • the excavation enclosure 10 shown comprises a flooded swimming platform 12 with a square hole 14 in the middle on a body of water 16, in particular in the Wadden Sea, two diagonally opposite, liftable retaining posts 18 on the outside 20 of the swimming platform 12, which are lowered into the body of water 16 and locked in order to secure the swimming platform 12 are, a circumferential vertical sheet pile wall 21 made of plastic sheet piles 24 stuck in the water bottom 16 along the inside 26 of the hole 14 of the swimming platform 12, a circumferential horizontal waling 28 for the sheet pile wall 22 in the hole 14 in the swimming platform 12 on the inside 26 of the sheet pile wall 22 and a plurality of vertical guide beams 30 inserted into the bottom 16 of the sea in vertical slideways 32 on the inside 26 of the hole 14 in the swim platform 12, the waling 28 at a distance from the inside 26 of the hole 14 in the Pick up swim platform 12.
  • the swimming platform has eight box-shaped coupling pontoons 34 .
  • steel plates 36 are connected to standard connections of the coupling pontoons (here six teclock connections above, six teclock connections below).
  • the guide beams 30 with a length of 4.80 meters in this example are attached so that they can move vertically on these steel plates via the sliding guides 32 .
  • these guide beams 30 close these guide beams 30 with the lower edge 40 of the swimming platform 12 so as not to increase the draft of the swimming platform 12.
  • these guide beams 30 embed 80 centimeters into the bottom 16 of the water body (tidal flats) in this example.
  • the waling 28 is at a distance of 26 centimeters from the inside 26 of the hole 14.
  • the sheet piles 24 are set circumferentially in this space.
  • the guide beams 30 are provided with locks into which the sheet piles 24 engage.
  • the swimming platform 12 constructed from the eight coupling pontoons 34 has a length of 41.45 meters and a width of 12.19 meters.
  • the excavation pit enclosed by the swimming platform 12 has the dimensions 36.58 meters x +7.32 meters.
  • the coupling pontoons 34 have a length of 12.192 meters, a width of 2.438 meters and a height of 2.438 meters and a weight of 13.350 kilograms.
  • the empty draft is 0.45 m and the maximum draft is 2.14 m.
  • the excavation pit enclosure should tie in about 80 centimeters into the mud flats.
  • the upper edge of the construction pit enclosure is at a height of about NN + 4.00 meters.
  • a height of 4.80 meters from the lower edge of the connection to the upper edge of the excavation is selected.
  • the swimming platform in the non-flooded, loaded state has a draft of 50 centimeters plus 10 centimeters of keel clearance and thus a total draft of 60 centimeters.
  • the guide beams 30 are, for example, HEB 260 beams.
  • a guide beam 30 is located at each corner of the hole 14.
  • the sheet piles 24 have complementary shaped longitudinal edge formations 68 and 70 (see Figs. figure 7 ) and engage in one another by means of the same, with one 68 of the two longitudinal edge formations being designed in a T-shape and the other 70 of the two longitudinal edge formations being designed with a receiving groove 72 for the T-shaped longitudinal edge formation, with a preferably reusable, elastic sealing element 74 in the Longitudinal connection area between two adjacent sheet piles 24, 24 is arranged on the inside of the excavation enclosure so that it seals the receiving groove against ingress of drilling fluid or drill cuttings mixed with drilling fluid from the inside of the excavation enclosure.
  • the figure 3 shows a device 38 for the construction of a particular temporary construction pit enclosure, for example in the figures 1 and 2 shown excavation enclosure 10, to prevent drilling fluid or drill cuttings mixed with drilling fluid from getting into the surrounding soil, in particular mudflats, or water in the area of water-side drill exit points, in particular horizontal boreholes, in a body of water, in particular in the Wadden Sea, the excavation enclosure comprising a sheet piling, in particular trapezoidal sheet piles made of plastic, which does not belong to the present invention.
  • the device 38 has a reversibly floodable swimming platform, such as the swimming platform 12, with a central square hole, such as 14, the swimming platform being floodable in such a way that it can be at least partially lowered in the water onto the water bottom 16, two lowerable support posts,
  • the device 38 also includes two removable shipping locks 62 in the hole 14 of the swim platform 12 for bracing.
  • it has a storage area 64 for parts of a waling to be created, such as the waling 28, and sheet piles, such as the sheet piles 24, for example.
  • the sheet piles 24 etc. can be lashed onto the storage area 64 for transport.
  • the device 38 is towed from the port with a small tugboat (not shown). Following this, the device 38 is towed/pushed to the drilling exit point with two flat-bottomed work boats due to its low weight and draft. The device 38 is finely adjusted on site and secured in position by lowering the support posts 18 .
  • an elastic, preferably reusable, elongated sealing element such as the sealing element 74, with an integration of, for example, 30 centimeters in the water bed 16, is introduced in the area of the longitudinal edges of adjacent sheet piles 24.
  • the sealing element 74 has a fir tree profile. It is used to prevent drilling mud or similar from escaping from the inside to the outside.
  • the selected arrangement of the vertical guide beams 30 and the connection of the sheet piles 24 to the guide beams 30 ensure a circumferential tight sheet piling 22, which in this example ties 80 centimeters into the existing water bed 16 (wadden bottom) and with an upper edge of the sheet piling 22 of NN + 4m guarantees the flood protection of the excavation pit.
  • the tugboats have a bollard pull of 5t to move the device 38 from the harbor to the vicinity of the drilling exit point.
  • the two shallow working boats have a draft of around 40 centimeters in this example.
  • the construction pit enclosure 10 is to be used for several construction pits.
  • the excavation pit enclosure 10 must be converted to a neighboring horizontal borehole (bore exit point) after the completion of the first horizontal borehole.
  • it must first be checked how far the end piece of the horizontal bore protrudes above the bottom of the water body 16 (tidal flats).
  • the excavation enclosure 10 can simply be floated out to the neighboring excavation after the sheet piles 24 and the vertical guide beams 30 have been removed. If, on the other hand, the end piece protrudes higher than 20 centimeters above the water bottom 16 (wadden bottom) in this example, one end face of the swimming platform 12 is removed.
  • the workflow for both cases is described below.
  • the low draft of, for example, 50 centimeters in the transport position allows swimming in at normal tide. You are not dependent on special spring tides.
  • a tight wall is achieved through the structural design of the transitions between sheet piles made of plastic and stiffening elements.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Claims (11)

  1. Enceinte de fouilles flottante (10), en particulier temporaire, permettant d'éviter qu'un fluide de forage ou des déblais de forage mélangés avec un fluide de forage n'atteignent le terrain environnant, en particulier des bancs de sable, ou l'eau dans la zone de points de sortie de forage côté eau, en particulier de forages horizontaux, dans un fond de plan d'eau (16), en particulier dans la mer des Wadden, comprenant
    - une plate-forme flottante noyée (12) pourvue d'un trou (14) sur un fond de plan d'eau (16), en particulier dans la mer des Wadden,
    caractérisée par
    - au moins deux piquets pouvant être soulevés (18) sur la face extérieure (20) de la plate-forme flottante (10) qui sont abaissés dans le plan d'eau (16) et bloqués pour sécuriser la plate-forme flottante (12),
    - un rideau de palplanches vertical (22) composé de palplanches (24) en matière plastique, enfoncé dans le fond de plan d'eau (16) et entourant un point de sortie de forage le long de la face intérieure (26) du trou (14) de la plate-forme flottante (12),
    - une membrure horizontale périphérique (28) pour le rideau de palplanches dans le trou (14) dans la plate-forme flottante (12) sur la face intérieure du rideau de palplanches (22), et
    - plusieurs supports de guidage verticaux, enfoncés dans le fond de plan d'eau, dans des guides coulissants verticaux sur la face intérieure du trou dans la plate-forme flottante qui reçoivent la membrure à une distance selon la profondeur de profil des palplanches de la face intérieure du trou dans la plate-forme flottante.
  2. Enceinte de fouilles (10) selon la revendication 1, dans laquelle le trou (14) est un trou central, de préférence quadrangulaire.
  3. Enceinte de fouilles (10) selon la revendication 1 ou 2, comprenant en outre une grue à portique (42) pourvue d'un mécanisme de roulement (52), en particulier d'un chariot de pont roulant, un palan, un vérin hydraulique (56) et une tringlerie (58) pour le montage du vérin hydraulique (56) sur le mécanisme de roulement (52), un poids (60) étant élingué ou pouvant être élingué de manière mobile au vérin hydraulique (56) sur le mécanisme de roulement (52) afin d'enfoncer des palplanches insérées (24) dans le fond de plan d'eau (16).
  4. Enceinte de fouilles (10) selon la revendication 3, dans laquelle le palan du mécanisme de roulement (52) est à commande électrique.
  5. Enceinte de fouilles (10) selon la revendication 3 ou 4, dans laquelle la grue à portique présente deux mécanismes de roulement (44, 46), en particulier des chariots de pont roulant, pourvus de palans (48, 50) pour l'insertion de palplanches (24).
  6. Enceinte de fouilles (10) selon la revendication 5, dans laquelle les palans (48, 50) sont commandés électriquement pour l'insertion, et/ou les palplanches (24) sont en matière plastique.
  7. Enceinte de fouilles (10) selon l'une quelconque des revendications 1 à 6, dans laquelle la plate-forme flottante (12) présente plusieurs pontons de raccordement (34) en forme de caisson.
  8. Enceinte de fouilles (10) selon l'une quelconque des revendications 1 à 7, dans laquelle l'un des supports de guidage (30) est disposé à chaque coin du trou (14) dans la plate-forme flottante (12).
  9. Enceinte de fouilles (10) selon l'une quelconque des revendications 1 à 8, dans laquelle les supports de guidage (30) sont munis de serrures dans lesquelles viennent s'engager les palplanches (24).
  10. Enceinte de fouilles (10) selon l'une quelconque des revendications 1 à 9, dans laquelle les palplanches (24) viennent s'engager les unes dans les autres au moyen de formations marginales longitudinales (68, 70) de forme complémentaire, dans laquelle l'une (68) des deux formations marginales longitudinales est configurée en forme de T, et l'autre (68) des deux formations marginales longitudinales est réalisée avec une rainure de réception pour la formation marginale longitudinale (68) en forme de T, dans laquelle en outre un élément d'étanchéité élastique (74) est disposé dans la zone de raccordement longitudinale entre deux palplanches (24, 24) voisines sur la face intérieure de l'enceinte de fouilles (10) de telle sorte qu'il rend étanche la rainure de réception (72) contre l'entrée d'un fluide de forage ou de déblais de forage mélangés à un fluide de forage par rapport à la face intérieure de l'enceinte de fouilles (10).
  11. Enceinte de fouilles (10) selon la revendication 10, dans laquelle l'élément d'étanchéité (74) est réutilisable.
EP19180865.8A 2018-11-13 2019-06-18 Enceintes de la fouille de fondation Active EP3653795B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018005260.4U DE202018005260U1 (de) 2018-11-13 2018-11-13 Baugrubenumschließungen sowie Vorrichtung und System zur Errichtung einer Baugrubenumschließung im Bereich von wasserseitigen Bohraustrittspunkten

Publications (3)

Publication Number Publication Date
EP3653795A2 EP3653795A2 (fr) 2020-05-20
EP3653795A3 EP3653795A3 (fr) 2020-08-12
EP3653795B1 true EP3653795B1 (fr) 2022-11-30

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EP19180865.8A Active EP3653795B1 (fr) 2018-11-13 2019-06-18 Enceintes de la fouille de fondation

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EP (1) EP3653795B1 (fr)
DE (1) DE202018005260U1 (fr)

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
DE202019104123U1 (de) 2019-07-26 2019-08-29 Tiefbau-Gmbh "Unterweser" Baugrubenumschließung zum Schutz der Umgebung einer im Watt befindlichen Baugrube vor Verunreinigungen aus dieser Baugrube und zum Schutz der Baugrube vor Überflutung
DE202019104122U1 (de) 2019-07-26 2019-08-23 Tiefbau-Gmbh "Unterweser" Baugrubenumschließung zum Schutz der Umgebung einer im Watt befindlichen Baugrube vor Verunreinigungen aus dieser Baugrube
CN111608173B (zh) * 2020-06-04 2022-05-20 石家庄铁道大学 深水陡坡裸岩钻孔桩施工方法及装置
CN112064660A (zh) * 2020-09-07 2020-12-11 上海建工二建集团有限公司 基坑分级降压方法
CN112554263B (zh) * 2020-12-01 2022-03-08 浙江河海建设有限公司 一种绞吸式挖泥船清淤设备及方法
CN113863639A (zh) * 2021-10-26 2021-12-31 中国建筑第四工程局有限公司 一种半挂式可移动锚索张拉操作平台
CN114263187B (zh) * 2021-12-30 2023-07-21 三箭建设工程集团有限公司 一种基坑底板传力结构及其施工方法

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Publication number Priority date Publication date Assignee Title
WO2001071106A1 (fr) * 2000-03-21 2001-09-27 Warren Howard Chesner Système de dragage sécurisé et cuve de traitement d'eau
US6625907B2 (en) * 2000-06-29 2003-09-30 Conveyance Technology Method and apparatus for dredging and transporting dredged solids
US8894072B2 (en) * 2012-06-04 2014-11-25 Wayne Alan Wolf Barrier seal
NL2011268C2 (nl) * 2013-08-05 2015-02-09 Cornelis Petrus Gerardus Maria Boot Installatie voor het baggeren of uitdiepen.
US9528241B2 (en) * 2014-10-24 2016-12-27 Cmi Limited Co. Barrier panel interlock sealing system and method
CN106256965A (zh) * 2016-05-24 2016-12-28 海盐汇祥新型建材科技有限公司 一种防渗板桩连接锁扣
US9845584B1 (en) * 2016-08-21 2017-12-19 Richard Christian Goldammer Barrier panel connecting clip and method
CN107964970A (zh) * 2017-11-30 2018-04-27 同济大学 一种双排钢板桩围堰滑动式钢拉杆系统

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EP3653795A3 (fr) 2020-08-12
EP3653795A2 (fr) 2020-05-20
DE202018005260U1 (de) 2018-11-28

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