EP3247838A1 - Dispositif de controle de ballast et de boue pour colonne ballastee realisee par voie humide - Google Patents
Dispositif de controle de ballast et de boue pour colonne ballastee realisee par voie humideInfo
- Publication number
- EP3247838A1 EP3247838A1 EP15706854.5A EP15706854A EP3247838A1 EP 3247838 A1 EP3247838 A1 EP 3247838A1 EP 15706854 A EP15706854 A EP 15706854A EP 3247838 A1 EP3247838 A1 EP 3247838A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control device
- ballast
- sludge
- vibrator
- mud
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010802 sludge Substances 0.000 claims description 88
- 238000005553 drilling Methods 0.000 claims description 22
- 239000002689 soil Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 230000008520 organization Effects 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
Definitions
- the subject of the invention is a device for controlling ballast and sludge for a wet ballast column.
- a ballast column is made by drilling a soil by a drilling system provided with a vibrator that gradually sinks into the ground to a desired depth.
- ballast is poured down from the soil inlet, otherwise known as the column head, to the bottom of the column where the ballast, possibly compressed by vibration of the vibrator, forms a inclusion.
- ballast in the soil ensure a good grounding, especially in the case where a structure is then built on the ground.
- the vibrator In order to facilitate the penetration of the vibrator into the soil, it may be provided to carry out the ballasted column wet, that is to say to inject water under pressure at the tip of the vibrator.
- the soil then breaks up more easily, and the excavation thus formed has a diameter greater than that of the vibrator.
- the injected water mixes with the particles of the disintegrated soil and emerges from the ballast column in the form of mud.
- Another disadvantage is that a large area is needed at the site, because of the presence of canals and ponds. decantation, which also requires a more complex site organization.
- ballast the discharge of the ballast at the column head is not accurate, and a significant amount of ballast can be lost in the mud that covers the platform. This leads to difficult control and control of the quantities of ballast incorporated, and over-consumption of ballast.
- the object of the invention is to at least partially overcome these disadvantages.
- the subject of the invention is a device for controlling ballast and sludge for a ballast column produced in a wet manner by a drilling system equipped with a vibrator, comprising:
- a sludge collection element defining an interior volume capable of collecting the sludge and provided with a passage orifice for the vibrator, and
- At least one guide wall of the ballast up to the orifice for the passage of the vibrator in the sludge collecting element.
- the sludge is retained in the interior volume of the collection element, from which it can be pumped, which avoids the flooding of the platform.
- the markings on the ground remain visible, ensuring the optimization of the work time.
- ballast guiding makes it possible, on the one hand, to pour the quantity required for each inclusion more accurately, and on the other hand opens the possibility of regulating and controlling the flow and the volume of the ballast, thereby improving quality through the control and control of the ballast consumption of the site.
- control device comprises a guide element provided with said at least one guide wall and a first orifice and a second orifice, the second orifice being of the same size or narrower that the passage of the vibrator of the sludge collecting element, the first and second orifices being sized to let the vibrator.
- the vibrator can pass through the control device to drill the ground.
- the collection element comprises an upper face or is devoid of an upper face.
- the upper face forms a cover of the collection element which allows to better contain the sludge.
- the guide element has a truncated pyramidal general shape.
- control device comprises a module for evacuating the sludge out of the sludge collecting element.
- the evacuation module comprises at least one pipe, one end of which is disposed in the interior volume of the sludge collecting element and the other end is disposed outside the interior volume of the sludge collecting element.
- sludge collection member and adapted to be connected to a mud suction pump.
- control device comprises the suction pump of the sludge.
- control device comprises a sealing member between the ground and the sludge collecting element.
- the sealing member comprises at least one insertion wall of the control device in a floor.
- control device when the control device is positioned at the location to be drilled, once the insertion wall is pressed into the ground, there is a seal that prevents sludge loss outside the control device.
- the control device comprises at least one slinging point. It is thus possible to easily move the control device with the vibrator (thanks to the slinging points), or independently of the vibrator (sling, fork, vehicle).
- the subject of the invention is also a ballast and mud control system for a wet ballasted column by a vibrator-equipped drilling system, said system comprising a control device as described above, a reservoir of ballast storage and a ballast conveyor belt from the storage tank to the ballast and mud control device.
- control system comprises a traction means.
- the invention also relates to a control system comprising the control device as described above or the system as described above, and at least:
- an evacuated sludge volume measuring flowmeter and / or a ballast volume or mass measuring device incorporated in the control device.
- the system comprises a data collection and recording unit provided by the flowmeter and / or the ballast mass measuring device.
- the subject of the invention is also a method for producing a column ballasted by a vibrating drilling system, comprising a step of moving the vibrator from a rest position to a drilling position of a soil, characterized in that the moving step comprises a step of during which the vibrator passes through the ballast and mud control device as previously described.
- the method comprises a preliminary step of positioning the ballast and mud control device as described above at a location on the ground to be drilled over a place intended to receive an inclusion. of ballast, the control device being moved independently of the vibrator or moved integrally from the vibrator.
- the method comprises a step of drilling the soil by the vibrator and a step of introduction of ballast into the ballast and mud control device as described above, during which the ballast is guided by said at least one guide wall in the hole drilled by the vibrator.
- the method comprises a step of collecting sludge resulting from a water injection during the step of drilling the soil by the vibrator into the interior volume of the ballast control device and mud as previously described.
- the method comprises a step of pumping the sludge out of the ballast and sludge control device as described above.
- FIG. 1 illustrates a perspective view of a ballast control device and sludge according to a first embodiment of the present invention
- FIG. 2a illustrates another perspective view of the control device of FIG. 1;
- FIG. 2b illustrates a perspective view of a variant of the control device of FIG. 2a
- FIG. 3 is a view from above of the control device of FIGS. 1 and 2a;
- FIG. 4 is a sectional view along an axis IV-IV of the control device of Figure 3;
- FIG. 5 is a sectional view along a V-V axis of the control device of Figure 3;
- FIG. 6 illustrates a perspective view of a ballast and mud control device according to a second embodiment of the present invention
- FIG. 7a illustrates an inverted perspective view of the control device of FIG. 6
- FIG. 7b illustrates a perspective view of a variant of the control device of FIG. 7a
- FIG. 8 is a view from above of the control device of FIGS. 6 and 7;
- - Figure 9 is a sectional view along an axis IX-IX of the control device of Figure 8;
- - Figure 10 is a sectional view along an axis XX of the control device of Figure 8;
- FIG. 11 illustrates a perspective view of a control system provided with a ballast and sludge control device according to a third embodiment of the present invention
- Figure 12 illustrates a side view of the system of Figure 1 1;
- FIG. 13 illustrates a schematic view of another system provided with a ballast and sludge control device according to the present invention.
- FIGS. 14, 15 and 16 illustrate a kinematics of a method of producing a ballasted column by means of the control device according to the present invention.
- a ballast and sludge control device 1 for a ballast column made in a wet manner by a drilling system equipped with a vibrator, comprises a collecting element 2 of the sludge and at least one wall ballast guide 3.
- the sludge collecting member 2 defines an interior volume 4 for collecting the sludge, and is provided with a passage opening 5 of the vibrator.
- Each ballast guide wall 3 cooperates with the sludge collecting member 2 in the direction in which the guide wall 3 is arranged to guide the ballast to the passage opening 5.
- the sludge collection element 2 is an open cylinder 6.
- the open cylinder 6 comprises a face 7, said upper face, pierced with the passage 5 of the vibrator.
- the face 7 has the general shape of a crown.
- the cylinder 6 is open at both ends, that is to say that it does not comprise an open face 7.
- the face 7 is pierced with a window for visualizing the quantity of sludge and ballast in the interior volume 4.
- the open cylinder 6 comprises a side wall 8.
- the cylinder 2 is preferably completely hollowed out of the face facing the upper face 7, so that the vibrator can pass through the sludge collection element 2 and the sludge can be collected in the interior volume 4.
- control device 1 comprises a guide element 10.
- the guide member 10 is a funnel or a hopper.
- the hopper 10 comprises four guiding walls 3 and has a truncated pyramidal general shape.
- Each wall has a slope so that the guide element 10 is flared from an open face 1 1 to an open base 12.
- the face 1 1 is a virtual surface defined by the first ends of each guide wall 3, and is intended to receive the ballast.
- the guide walls 3 meet in a circle delimiting the base 12, and is extended by a cylinder 13 of the same diameter as the circle 12 inside the interior volume 4.
- the guide hopper 10 and the ballast guiding cylinder 13 are integral with the sludge collecting cylinder 2, the circle of the guide walls 3 being inserted into the upper face 7 of the sludge collecting element 2.
- the circle 12 and the cylinder 13 forming the base of the hopper 10 are coaxial with the cylinder 6 of the sludge collecting element 2.
- the face 1 1 forms a first hole of the hopper 10 and the base 12 forms a second hole of the hopper 10.
- the second orifice 12 is of the same size or narrower than the orifice 5 of the vibrator passage of the element. collecting sludge 2, because the hopper 10 is inserted into the cylinder of the sludge collection element 2.
- the face 1 1 and the base 12 are sized to pass the vibrator, and advantageously, the face 1 1 is wider than the base 12.
- the base of the cylinder 13 stops at about 15 centimeters above the ground.
- the side wall of the cylinder 13 is also perforated with holes 50 of mud passage.
- the holes 50 ensure that the sludge can circulate more freely in the interior volume 4 of the cylinder 6 and thus be sucked more easily out of the interior volume 4.
- Such a design of the cylinder 13 makes it possible to optimize the efficiency of the guiding of the ballast towards the drilling without constituting an obstruction to the free circulation of the mud.
- the control device 1 comprises a module 15 for removing the sludge from the sludge collecting element.
- the evacuation module 15 comprises at least one pipe 16, one end 17 of which is disposed in the interior volume 4 of the sludge collection element 2 and the other end 18 is disposed outside the interior volume of the collection element. sludge and adapted to be connected to a suction pump of the sludge.
- the evacuation module 15 has the general shape of Y and comprises two pipes 16 whose end 17 dips into the interior volume 4 of the parallelepiped 2 and which meet in the same pipe 19.
- the evacuation module 15 of the device 1 comprises a ballast filter at the end 17 (visible in FIGS. 3 and 5 for example) to prevent the ballast from being sucked up with the sludge which advantageously consists of a simple grid attached to the inner hole (as shown) or a more elaborate strainer.
- the mud pump is either integrated in the control device 1 or independent of the control device 1.
- the control device 1 also comprises a holding structure 20 consisting of a plurality of bars.
- the holding structure 20 comprises a frame comprising four bars 21a, 21b, 21c and 21d forming a rectangle disposed around the cylinder 6.
- the holding structure 20 provides a reinforcement for the device 1 and also makes it possible to better visually delimit the device 1, which improves the security of the use of the device 1.
- the device 1 also comprises two sleeves 22 for transporting the device 1.
- the two sleeves 22 are configured to each accommodate a fork of a load carrier.
- the two sleeves are embedded in the bars 21a and 21c provided with holes for passage of the fork.
- the holding structure 20 also comprises four bars 23 which each run along the summit end of the guide walls 3 and form a rectangle.
- the holding structure also comprises four parallel bars 24 arranged so that each of them connects one of the ends of one of the bars 21a, 21c, at one end of one of the bars 23 .
- control device 1 comprises at least one slinging point 25, and preferably four slinging points 25 arranged at the vertices of the rectangle formed by the bars 23, for the transport of the control device 1.
- control device 1 comprises a sealing member between the ground and the sludge collecting element 2.
- the sealing member comprises at least one insertion wall corresponding to the side wall 8 of the cylinder 6.
- the sealing member may be in various variants, and for example be constituted by a rubber seal or a tow.
- control device 1 In the position of use for producing a column ballasted in a soil, as will be explained below in connection with the method according to the present invention, the control device 1 is placed on the ground.
- the face 1 1 and the base 12 of the guide member 10, and the upper face passage opening 7 of the sludge collecting member 2 are facing the ground.
- the side wall 8 is partially embedded in the ground under the own weight of the device so as to ensure the seal between the control device 1 and the ground.
- the bars 21a, 21b, 21c, 21d of the holding structure 20 rest on the ground.
- the sludge collection element 2 is an open parallelepiped 6, of which one face 7, called the upper face, is pierced by the orifice 5 for the passage of the vibrator.
- the parallelepiped 6 is open at both ends, that is to say that it does not include an open face 7.
- the face 7 is pierced with a window for visualizing the quantity of sludge and ballast in the interior volume 4.
- the open parallelepiped 6 comprises four lateral faces 8a, 8b, 8c and 8d.
- the parallelepiped 6 is preferably completely recessed from the face facing the upper face 7, so that the vibrator can pass through the sludge collection element 2 and the sludge can be collected in the interior volume 4, as will be explained later.
- control device 1 comprises a guide element 10.
- the guide member 10 is a funnel or a hopper.
- the hopper 10 comprises four guiding walls 3 and has a truncated pyramidal general shape.
- each wall having a slope so that the guide member 10 is flared from an open face 1 1 to an open base 12.
- the face 1 1 is a virtual surface delimited by the first ends, apex, of each guide wall 3, and is intended to receive the ballast, as will be explained below.
- the base 12 is the open space defined by eight wall portions 13 forming second ends of the guide walls.
- the portions 13 are constituted by four parallelograms facing each other in pairs, two adjacent parallelograms being joined by a section of triangular shape.
- the portions 13 are advantageously perforated with holes 50 for passing mud.
- the holes 50 ensure that the mud can circulate more freely in the inner volume 4 of the parallelepiped 6 and is thus sucked more easily out of the inner volume 4.
- the guide hopper 10 is integral with the parallelepiped forming the sludge collecting element 2, the second ends of the guide walls being inserted into the upper face 7 of the sludge collecting element 2.
- the face 1 1 forms a first orifice of the hopper 10.
- the base 12 forms a second orifice of the hopper 10.
- the second orifice 12 is of the same size or narrower than the passage 5 of the vibrator of the sludge collecting member 2, because the hopper 10 is inserted into the parallelepiped forming the sludge collecting member 2 .
- the face 1 1 and the base 12 are sized to let the vibrator, as will be explained below.
- the face 1 1 is wider than the base 12, which makes it easy to pour the ballast into the hopper 10, as will be explained below.
- control device 1 comprises a module 15 for removing the sludge from the sludge collecting element.
- the evacuation module 15 comprises at least one pipe 16, one end 17 of which is disposed in the interior volume 4 of the sludge collection element 2 and the other end 18 is disposed outside the interior volume of the collection element. sludge and adapted to be connected to a suction pump of the sludge.
- the evacuation module 15 has the general shape of Y and comprises two pipes 16 whose end 17 dips into the internal volume 4 of the parallelepiped 2 and which meet in the same pipe 19.
- the control device 1 comprises a ballast filter, as already detailed with reference to the first embodiment.
- control device 1 is advantageously provided with a slurry pump, as already detailed with reference to the first embodiment.
- control device 1 also comprises a holding structure 20 already described in relation to the first embodiment.
- control device 1 comprises at least one slinging point 25, and preferably four slinging points 25 arranged at the vertices of the rectangle formed by the bars 23, for the transport of the slinging device. control 1.
- the sealing member comprises at least one insertion wall corresponding to the side walls 8a, 8b, 8c and 8d of the parallelepiped 6.
- sealing member may be in various variants, as already indicated.
- control device 1 In the position of use for producing a ballasted column in a ground, the control device 1 is placed on the ground, as already indicated for the first embodiment.
- the face 1 1 and the base 12 of the guide member 10, and the upper face passage opening 7 of the sludge collecting member 2 are facing the ground.
- FIGS. 1 1 and 12 illustrate a control system 30 comprising a control device 1 according to the present invention.
- the control system 30 comprises a traction means 31, advantageously caterpillar type.
- the system 30 includes a ballast storage tank 32 and a ballast conveyor belt 33 from the storage tank 32 to the ballast and mud control device 1.
- the control device 1 is integral with a front part of the system 30, close to one end of the belt 33.
- the belt 33 is rolling and constitutes a ballast conveyor from the storage tank 32 to the guiding wall 3 of the control device 1.
- the storage tank 32 advantageously comprises a hopper for guiding the ballast during its pouring into the storage tank 32.
- FIGS. 11 and 12 is illustrated a third embodiment of the control device 1.
- control device 1 comprises a sludge collection element 2 in the form of an open cylinder surmounted by a single guide wall 3.
- system 30 may also include the control device 1 according to the first or second embodiment.
- the system 30 comprises a remote control unit of the traction means 31, allowing for example an autopilotage of the system 30 with the aid of a geolocation system known in itself to those skilled in the art.
- the subject of the invention is also a system 60 illustrated in FIG. 13 comprising the control device 1 according to one or other of the embodiments, as well as at least:
- a flow meter 61 for measuring the volume of mud evacuated, and / or
- an apparatus 62 for measuring the volume or mass of ballast incorporated for example of the laser type or of the differential weighing type, known to those skilled in the art, making it possible to know the quantity of ballast poured in real time in the column of ballast.
- the system 60 also advantageously comprises a unit for collecting and recording 63 data supplied by the flowmeter 61 and / or the ballast mass measuring device 62.
- FIGs 14, 15 and 16 illustrate a method of producing a ballasted column 40 by a drilling system 41 provided with a vibrator 42, using the control device 1 of ballast and sludge.
- the device 1 is implanted in the ground, that is to say that the side faces 8a to 8d of the parallelepiped 6 or the side face 8 of the cylinder 6 are driven at least partially into the ground.
- This implantation stabilizes the control device 1 and ensures the sealing of the device 1, which retains the sludge better.
- the method comprises a step of moving the vibrator 42 from a rest position to a drilling position of a soil.
- the vibrator 42 suspended from a carrier 46, is arranged in height.
- the vibrator 42 In the drilling position of the ground, the vibrator 42 enters the ground 44 at the location 43.
- the step of moving the vibrator 42 comprises a step during which the vibrator 42 passes through the control device 1 before entering the ground 44.
- the method comprises a drilling step, during which the vibrator 42 moves in the ground 44, which creates an excavation 47.
- the method comprises a step of introducing ballast into the control device 1, during which the ballast is guided by the wall or walls ( s) guidance in the excavation.
- the method comprises a step of collecting the sludge resulting from an injection of water during the step of drilling the soil by the vibrator into the interior volume 4 of the control device 1.
- the sludge is sucked by a sludge pump 48 out of the control device 1.
- the method comprises a preliminary step of positioning the control device 1 at a location 43 on the floor 44 to be drilled over a place intended to receive an inclusion of ballast 45.
- control device 1 is lifted together with the vibrator via the slings 25 and the assembly is moved by the carrier 46 to the implantation position.
- the vibrator 44 and the device 1 are integral with the carrier 46 during the preliminary positioning step.
- the vibrator is preferably maintained in the device 1, as can be seen in FIG.
- the device and the method according to the invention make it possible to collect the sludge out of the zone to be drilled while pouring with precision the quantity of necessary and sufficient ballast in each excavation.
- control device 1 according to one of the three embodiments or according to one of the two variants, is advantageously included in the system 30 and / or the system 60.
- control device 1 either alone or included in the system 30 and / or the system 60.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FR2015/050170 WO2016116670A1 (fr) | 2015-01-23 | 2015-01-23 | Dispositif de controle de ballast et de boue pour colonne ballastee realisee par voie humide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3247838A1 true EP3247838A1 (fr) | 2017-11-29 |
Family
ID=52595354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15706854.5A Withdrawn EP3247838A1 (fr) | 2015-01-23 | 2015-01-23 | Dispositif de controle de ballast et de boue pour colonne ballastee realisee par voie humide |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20180010313A1 (fr) |
| EP (1) | EP3247838A1 (fr) |
| WO (1) | WO2016116670A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384787A (en) * | 1979-06-28 | 1983-05-24 | Yasuro Ito | Method and apparatus for adjusting the quantity of liquid deposited on fine granular materials and method of preparing mortar or concrete |
| CN103061325B (zh) * | 2013-01-15 | 2015-01-07 | 张治德 | 排浆集料器 |
-
2015
- 2015-01-23 WO PCT/FR2015/050170 patent/WO2016116670A1/fr not_active Ceased
- 2015-01-23 US US15/545,485 patent/US20180010313A1/en not_active Abandoned
- 2015-01-23 EP EP15706854.5A patent/EP3247838A1/fr not_active Withdrawn
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2016116670A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20180010313A1 (en) | 2018-01-11 |
| WO2016116670A1 (fr) | 2016-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2156907B1 (fr) | Equipement et procédé de traitement de polluants dans le sol | |
| FR3031002A1 (fr) | Pot a reserve d'eau pour plante | |
| FR2714919A1 (fr) | Dispositif de comblement d'une tranchée creusée dans le fond sous-marin pour recouvrir une canalisation déposée dans ladite tranchée. | |
| CN106688408A (zh) | 一种果园自走式变深变位变量施肥机 | |
| EP0811724A1 (fr) | Appareil à châssis télescopique pour creuser des tranchées dans le sol | |
| US10883250B2 (en) | Dredging apparatus and method of dredging | |
| FR3127420A1 (fr) | Dispositif de nettoyage pour un outil de forage | |
| WO2016116670A1 (fr) | Dispositif de controle de ballast et de boue pour colonne ballastee realisee par voie humide | |
| FR2467917A1 (fr) | Procede pour l'extraction de sediments marins au moyen d'un tube d'aspiration pendant librement et dispositif pour la mise en oeuvre de ce procede | |
| FR2597150A1 (fr) | Perfectionnement aux dispositifs de forage des sols comprenant un outil de forage fixe a l'extremite d'une tige formee de deux tubes concentriques | |
| FR2873155A1 (fr) | Foreuse hydraulique pour travaux en espace reduit | |
| FR2731024A1 (fr) | Appareil destine a creuser des tranchees dans le sol | |
| FR2772058A1 (fr) | Appareil d'excavation | |
| TNSN93116A1 (fr) | Machine pour drainer un terrain gazonne ou stabilise | |
| JP4049254B2 (ja) | 排水装置 | |
| JP4411418B2 (ja) | 水底堆積土砂の輸送方法およびその装置 | |
| EP3754154B1 (fr) | Machine pour forer un sol recouvert d'une couche poreuse, et procédé correspondant | |
| FR2795129A1 (fr) | Machine de creusement d'un tunnel | |
| FR2977663A1 (fr) | Dispositif et procede d'assistance au deminage | |
| FR2663373A1 (fr) | Procede et dispositif pour etablir une depression dans une zone de terrain permeable isolee de l'atmosphere par une membrane etanche. | |
| KR102864801B1 (ko) | 농촌 농업용 대용량 빗물 침투 및 저류설비 | |
| EP3623065B1 (fr) | Procede d'injection d'un produit depolluant dans le sol sous forme de bande helicoidale et dispositif correspondant | |
| FR2736664A1 (fr) | Machine de terrassement ou de fouille a outil comportant des jets haute pression | |
| JPH06116977A (ja) | 浚渫装置 | |
| FR2891287A1 (fr) | Machine de realisation d'une paroi continue dans le sol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20170721 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20190513 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20190924 |