EP3077599A1 - Installation de betonnage et procede de betonnage correspondant - Google Patents
Installation de betonnage et procede de betonnage correspondantInfo
- Publication number
- EP3077599A1 EP3077599A1 EP14825404.8A EP14825404A EP3077599A1 EP 3077599 A1 EP3077599 A1 EP 3077599A1 EP 14825404 A EP14825404 A EP 14825404A EP 3077599 A1 EP3077599 A1 EP 3077599A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- concreting
- concrete
- installation
- excavation
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
- E02D17/13—Foundation slots or slits; Implements for making these slots or slits
-
- 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
Definitions
- the installation and the method according to the invention are suitable for the production of elements molded in the ground, of any general shape, for example molded walls or piles.
- the installation and the method according to the invention are particularly suitable for the production of deep molded elements.
- the procedure for producing such walls is similar to that of conventional molded walls.
- An excavation is drilled in the ground and filled with a liquid called "mud", usually made from bentonite.
- mud usually made from bentonite.
- the sludge forms a tight deposit on the walls of the excavation which allows it to control percolation in the soil and prevents the walls from collapsing.
- the excavation is progressively filled with concrete, starting below the mud, in the bottom of the excavation.
- Concreting begins when the lower end of the column is sufficiently close to the bottom of the excavation.
- the first step consists of filling the concrete column with concrete by replacing the sludge initially present with concrete, without polluting the concrete with the sludge.
- Falling concrete to a high height can also lead to the entrapment of pressurized air in the column, which can lead to concrete spraying at the upper end of the column during its expulsion, which is therefore a risk potential for safety of the operators, or by the lower end of the column, causing a decrease in the quality of the concrete.
- a concreting installation adapted to concreting an excavation, in particular an excavation having a depth of at least 100 meters, said installation comprising: a concreting column comprising an upper end arranged to be opened in order to be brought to atmospheric pressure, and
- At least one controlled holding device located remote from the open upper end of the concreting column and adapted to retain a volume of concrete within said column, in at least one configuration.
- the flow of concrete or drilling mud inside the column and / or the flow of concrete or sludge at the outlet of the concrete column can be regulated as required.
- the installation is thus advantageously configured to allow control of the height of a free space defined between the volume of concrete retained inside the column and one end of the concrete column.
- the maximum drop height of the concrete inside the column is thus kept constantly below a predetermined limit value, preferably equal to 40 meters.
- the term "retaining device” means a device allowing, in at least one configuration, total or partial blockage of the flow of concrete or sludge inside the column or out of the column. column. This device is, in particular, adapted to restrict the flow section of the concrete or mud inside or outside the column.
- the restraint is controlled, generally at a distance. It is thus adapted to be actuated to pass from at least one passive position, in which it defines a useful section of concrete flow or sludge inside the column or out of the column, at least one active position in which it defines a flow section of the concrete or slurry which is less than the useful section, and vice versa .
- the flow section when the holding device is in its active position can then be zero (total blocking) or non-zero (partial blocking).
- an axial direction is a direction parallel to the main axis of the concrete column.
- a radial direction is a direction perpendicular to the main axis and intersecting this axis.
- the adjectives and adverbs axial, radial, axially and radially are used with reference to the aforementioned axial and radial directions.
- the adjectives inner, inner and outer, external are used with reference to a radial direction so that an inner / inner portion of an element is closer to the main axis than the outer / outer portion of the same element.
- the upper and lower adjectives are used in reference to the axis of the concreting column, generally positioned vertically when in use, the column being introduced into the excavation at its lower end with its upper end facing the entrance of the excavation.
- the concreting column may be formed by a plurality of column sections joined to each other in the axial direction.
- the total length of the column (measured in the axial direction), ie its maximum length, possibly obtained by assembling several column sections, may for example be greater than 100 meters.
- At least one retaining device is disposed in the vicinity of the lower end of the concreting column.
- an element is disposed near the bottom end of the concreting column when it is located at a distance from the bottom end of not more than 20%, preferably at most 20%. %, even more preferably at most 2%, of the total length of the column.
- the retaining device is controlled so that the height of the volume of concrete that it retains inside the column remains constantly greater than a predetermined value, the result being that the distance between the opening of the column at its upper end and the free surface of the volume of concrete inside the column remains below a limit value, less than or equal to the limit drop height for the concrete.
- the concreting column has at least one outlet orifice in the vicinity of its lower end, and the retaining device comprises at least one movable valve adapted to be displaced with respect to said outlet orifice.
- the valve may, in particular, change the flow section of the concrete, or sludge during the initial priming phase, out of the concrete column.
- the outlet orifice of the concreting column opens axially, and the valve is movable in translation in the axial direction.
- the valve comprises a tube of the same axis as the concreting column, at least one of the concreting column and the tube comprising at least one lateral opening, and the tube is adapted to be displaced by relative to the concreting column so as to modify the flow section of the concrete out of the concreting column through said lateral opening.
- the tube may be rotatably mounted relative to the concreting column. It may, in a variant, be movable in translation relative to the concreting column, along the axis of the concreting column.
- the tube has a length, measured in the axial direction, substantially less than that of the column, at most equal to 20%, preferably 5%, even more preferably 2%, of the total length of the column.
- the tube may be arranged radially inside or outside the concreting column.
- the concreting column comprises at least a first lateral opening and the tube comprises at least a second lateral opening, and the concreting column and the tube are adapted to be moved so that the first and the second opening are positioned opposite one another in at least one configuration of the installation.
- the installation comprises at least one mechanism for actuating the retaining device, situated in the vicinity of the lower end of the concreting column.
- the actuation mechanism can then be controlled remotely.
- valve defined above can be actuated by a suitable actuating mechanism located in the vicinity of the lower end of the column, including at least one jack or cable.
- At least one retaining device is arranged in the column, at a distance from the upper end of the column less than 80% of the total length of said column.
- the retaining device then forms a bearing, at which the concrete is in particular stopped or braked, before continuing its descent inside the column. The height of concrete drop is reduced, reducing the risks of segregation.
- At least one retaining device is located in the upper part of the column.
- the upper portion of an element such as the concreting column corresponds to the upper half of this element, in the axial direction.
- At least a first retaining device at near the lower end of the column and at least one second retaining device located higher in the column, in particular at a distance from the upper end of the column of less than 80%, preferably 50%, of the total length of said column.
- Such an arrangement may allow, in particular, to distribute the load related to the concrete retained inside the column, on several restraints.
- the concrete installation comprises a plurality of retaining devices distributed along the concrete column and adapted to be controlled independently of one another. The progress of the concrete inside the column is then made in successive stages, spaced a distance less than or equal to the desired limit drop height for the concrete.
- a hydraulic or pneumatic valve is used as the retaining device, in particular a sleeve valve.
- the concreting column comprises, in the vicinity of its lower end (and in particular of its outlet orifice), a guiding and abutment element for the concrete, provided with a useful tip end intended to disintegrate the possible clusters of chippings in the concrete.
- the concrete installation may also include a priming piston adapted to slide along the concrete column.
- the priming piston may have various shapes, in particular a spherical or cylindrical shape. It makes the separation between the sludge and the concrete inside the column, during the priming phase. It prevents mud from rising and hindering the descent of the concrete inside the column, and that it comes to pollute the concrete.
- the priming piston can naturally be deposited on the check valve located at the lower end of the concreting column, so as to constitute, in fine, a guiding and abutment element for the concrete in the vicinity of the outlet.
- the concrete installation further comprises means for evacuating the air trapped in a column section, to avoid the risk of concrete spraying at the upper end of the column.
- the evacuation means comprise, for example, an air duct communicating with said section of the concreting column.
- the air evacuation system comprises a pipe extending axially inside the concreting column.
- this mobile pipe can also fulfill the function of the flow rate measuring device inside the concreting column.
- the concrete installation comprises at least one device for measuring and / or calculating a parameter representative of the progress of concreting.
- the installation advantageously comprises a device for measuring and / or calculating at least one parameter representative of the level of concrete inside the concreting column. Thanks to such a device, it is possible to determine when and to what extent the flow section of the concrete column must be restricted, before the rise of said column in the excavation, so that the height of the free space defined between the volume of concrete contained in the concrete column and the upper end of the concrete column remains below the limit value during this ascent.
- this measuring device and / or calculation is adapted to directly measure the level of concrete. It is for example in the form of a float or a lead.
- measuring device and / or calculation can be implemented continuously or punctually during the concreting process.
- the concrete installation may comprise, for example, one or more of the following means:
- the installation comprises an automated control unit of the retaining device (s).
- this control unit is connected to the (x) measurement and / or calculation devices and adapted to control the said retaining device (s) as a function of the values of the parameter (s). s) measured and / or calculated by these () measurement and / or calculation devices.
- the present disclosure also relates to a concreting machine comprising a concreting installation as defined above, a frame, and means for supporting and guiding the concrete column, integral with the frame.
- the support and guiding means comprise a guide and support mast integral with the chassis, a rotating system movable along said guide mast, and a clamping device for the concrete column.
- the concreting machine also comprises means for placing, removing and storing the column elements.
- the present disclosure also relates to a method of concreting an excavation, particularly an excavation having a depth of at least 100 meters, said method comprising at least the following succession of steps:
- a concreting column is placed in the concreting excavation, and a concreting cycle is carried out during which concrete is introduced into the concreting column through its open upper end, and a volume of concrete is kept at a distance from said open end, so that the height of a free space defined between said volume of concrete and one end of the concreting column remains below a limit value.
- free space here means a continuous space extending over an axial portion of the column, free of concrete, but filled with air or sludge during the priming phase.
- a free space is a space in which concrete can move under the effect of its own weight.
- the height of a free space corresponds to the height of fall of the concrete during the implementation of the process.
- a volume of concrete is therefore retained inside the column in such a way that the height of fall of this volume of concrete or of another volume of concrete inside the column remains lower than a predetermined value.
- the predetermined limit value is equal to 40 meters. Beyond this limit value, the fall of the concrete and / or the abrupt contact between the poured concrete and the concrete at the bottom of the column may result in segregation of the concrete and possibly the formation of a plug inside the column. , preventing the continuation of operations.
- a retaining device will be controlled so that it passes, as required, from a passive position, in which it defines a useful flow section inside the column or outwards. the column to an active position in which it defines a flow section that is smaller than the useful section, or vice versa.
- a retaining device will be controlled so that it passes, as required, from a passive position, in which it defines a useful flow section inside the column or outwards. the column to an active position in which it defines a flow section that is smaller than the useful section, or vice versa.
- the first concreting cycle comprises a priming step during which concrete is introduced through the open upper end of the concreting column filled with drilling fluid, so as to expel the fluid. drilling out of the column and filling the concrete column, and during the priming step, partially restricts the flow section inside the concrete column and / or outward of said column. The descent of the concrete in the concrete column is thus slowed down, and the segregation phenomena of the concrete and the resulting plugs are avoided.
- a second concreting cycle is carried out after a first concreting cycle. Several concrete cycles can follow one another, until the complete rise of the column and the entire concreting of the excavation.
- a column member may be removed at the upper end of the column at the end of a concreting cycle and prior to the start of operation. next cycle.
- the concreting process can be automated, totally or partially. For example, it is possible to control the opening of the device (s) of restraint as a function of the level of the concrete in the column. The rise of the column can be controlled according to the height of concrete in the excavation. In addition, the stopping of the concreting, the control of the device (s) restraint, the removal of a column member, and / or the resumption of concreting can be automated at least in part.
- the free space defined above is located above the volume of concrete.
- the concrete installation comprises at least one retaining device in the vicinity of the lower end of the concrete column. This holding device is then controlled so as to limit or completely stop the flow of concrete at the outlet of the column, and to prevent the level of the concrete inside said column from excessively decreasing, which would leave a free space of height too high for the next concreting, in the upper part of the column.
- a concreting cycle comprises the following steps:
- the flow section inside the concreting column and / or out of said column is at least partially, possibly totally, restricted depending on at least one parameter representative of the concrete level at the inside the concrete column.
- step a the flow section inside the concreting column and / or towards the outside of the column is advantageously the largest possible. If this flow section has been decreased during the priming step or in step b) of a previous cycle, it is preferably increased again.
- At least one parameter representing the level of concrete inside the excavation is measured and / or calculated (continuously or punctually) and, depending on this at least one parameter, the time at which the concrete feed of the concrete column is to be stopped is determined.
- the lower end of the concrete column should always be immersed in the concrete during concreting.
- the column length immersed in the concrete remains in a certain range of values, for example between 3 and 10 meters.
- At least one parameter representative of the concrete level inside the concreting column is measured and / or calculated (continuously or punctually) and, depending on this at least one parameter, , we restrict the section of the concreting column (in particular, the moment and / or the extent to which the section is to be restricted) is determined, so that the height of the free space defined between the volume of concrete contained in the column concrete and the upper end of the concrete column remains below the limit value.
- step c) of the first concreting cycle the concreting column is raised inside the excavation, the height of the free space defined between the volume of concrete retained in the concreting column and the upper end of the concreting column still remaining below the limit value, and at least one second concreting cycle is carried out at the end of the first concreting cycle.
- step b the flow section inside the concreting column and / or towards the outside of said column is restricted, in step b), so that even during the ascent of the column to Inside the excavation and pressure differences between the inside of the column and the excavation, the drop height of the concrete (height of free space) remains below the desired limit value.
- the free space is located below the volume of concrete.
- at least one retaining device is generally located at a distance from the lower end of the column, and forms at least one retaining block for the concrete.
- a free space can then be defined between the retainer and the free concrete surface in the column, downstream of the retainer, or between a first retainer and a second retainer, if there are more than one .
- the air present in the free space is evacuated to control the pressure.
- a volume of concrete is successively retained at at least two retaining points axially spaced inside the concrete column, a free space being defined between said first and second holding points.
- FIGS. 1A to 1D illustrate various stages of a concreting process, carried out using a concreting installation according to a first embodiment of the invention
- FIGS. 2A and 2B show in more detail the valve of FIGS. 1A to 1D, respectively in the closed state and in the open state;
- FIGS. 3A and 3B illustrate a second example of a retaining device that can be used according to the invention
- FIGS. 4A to 4C illustrate a third example of a retaining device
- FIGS. 5A and 5B illustrate a fourth example of a retaining device
- FIGS. 6A and 6B illustrate a concreting installation according to a second embodiment of the invention
- FIG. 7 illustrates a variant of the second embodiment
- FIG. 8 illustrates a third embodiment of the invention.
- FIG. 1A illustrates a concreting machine 100 according to the invention, suitable for concreting an excavation E as shown, of height H1 here equal to at least 100 meters and filled with a drilling fluid F of the sludge type. bentonite.
- the concreting machine 100 comprises a concreting installation 10 provided with a concreting column 12 of axis A, through which the concrete is introduced into the excavation.
- a control unit 90 On the frame 80 are mounted other equipment such as a control unit 90.
- the column 12 is formed of a plurality of column members 14 successively mounted one after the other in the axial direction A.
- the connection between two successive elements 14 is for example made by screwing between a threaded end of one of the elements, and a threaded end complementary to the second. This connection is made or defeated, in a manner known per se, using the clamping device 86.
- the concreting column 12 formed of a plurality of column elements 14, is held at its upper end by the clamping device 86, while its lower end is in the vicinity of the bottom of the column. excavation E. Its total height H2 is at least equal to the height Hl of the excavation.
- the column 12 is open and capped with a funnel 16 at its upper end, and provided with an outlet orifice 18 opening axially at its lower end.
- the installation 10 comprises a controlled retention device adapted to retain a volume V of concrete inside the column 12 as will be described in more detail below.
- FIGS 2A and 2B further illustrate the lower end of the column 12 of Figure 1A, provided with this retainer.
- the retaining device comprises a valve 30 mounted to be movable in translation relative to the column 12, in the axial direction, so as to be able to assume a closed position in which the outlet orifice 18 is closed completely, an open position wherein the flow section through the outlet port 18 is maximum, and optionally a partially open position in which the flow section is non-zero but less than that obtained in the open position.
- the concreting column 12 is filled with drilling mud F, as is the excavation E.
- the valve 30 is in the partially open position, the flow section through the outlet orifice 18 is low. .
- FIG. 1A illustrates the priming phase, which consists of replacing the sludge F initially present in the concreting column 12 with concrete.
- a priming piston plug 22 is placed beforehand on the surface of the sludge, inside the column 12. The concrete is thus permanently separated from the slurry. mud.
- valve 30 which partially closes the outlet orifice 18 of the column 12
- the flow of the sludge out of the column 12 is limited, slowing down the descent of the concrete.
- the segregation phenomena of the concrete and the resulting plugs are thus avoided.
- the valve 30 is controlled in the open position by the control unit 90 and the concreting of the excavation E begins at a controlled rate.
- FIG. 1B it can be seen that the priming piston 22 has been deposited on the upper face of the valve 30, where it will remain until the end of concreting of the excavation. In this position, the priming piston fulfills a new function, guiding and abutment for concrete. Provided with a useful upper end tip, it breaks up any clumps of gravel contained in the concrete reaching the outlet port 18.
- a free space of height H3 is defined between the upper end of the column and the free surface of the concrete inside the column, and the valve 30 is brought into the closed position.
- the funnel 16 is then disengaged from the upper end of the column 12, to which the rotation head 84 is then fixed, the column 12 is raised along the mast 82 by a height substantially equal to the length of a column member 14, then the upper end member 14 is removed, and the funnel is reinstalled at the upper end of the "cut off" column.
- valve 30 being in the closed position, the flow of concrete at the outlet of the column is zero, and the height of concrete inside the column remains unchanged.
- the concrete poured into the funnel 16 then drops inside the free space to a height H4 corresponding to the height H3 minus the height of the column element removed during the cutting of the column.
- the stopping of the first concreting cycle and the control of the valve 30 are chosen so that this height H4 does not exceed the maximum permissible drop height for the concrete, generally of the order of 40 meters.
- FIGS. 1C and 1D The sequence of FIGS. 1C and 1D is repeated as many times as necessary for the entire concreting of the excavation E.
- one or more measuring devices and / or calculation can detect one or more parameters representative of the progress of concreting. This may include, but is not limited to:
- control unit 90 which processes them for the control of the process and manages, as a function, the opening and closing of the valve 30.
- control unit 90 comprises a computer and that it permanently displays a curve giving the height of concrete inside the excavation E as a function of the volume of concrete already introduced into the column. Taking into account also the position of the lower end 12b of the column 12 inside the excavation E, the control unit can then control the stopping of concreting operations and the triggering of a new one. cutting of the column, so that the drop height H4 of the concrete in the free space of the column, the resumption of concreting, remains below the predetermined limit value.
- the concrete installation 10 may also include a handling system and storage of the column elements 14 and / or a system for handling and screwing / unscrewing the funnel 16.
- control and control of the retaining device, cutting of the column, as well as the stopping and resumption of concreting operations can also be carried out manually, by a operator, according to the parameters measured by one or more measuring devices and / or calculation of the aforementioned type.
- FIGS. 3A, 3B, 4A to 4C and 5A, 5B illustrate some variants.
- Figures 3A and 3B illustrate the lower end of a concreting column 12 of the aforementioned type.
- the column 12 has, at its lower end, an outlet opening 18 opening axially.
- a retaining device is here formed by a tube 40 coaxial with the concreting column 12, mounted inside said column 12, and movable in translation in the axial direction A, here by the actuation of a jack 20.
- the tube 40 has an axial length substantially smaller than the total length of the column (ie its maximum length), in particular a length at most equal to 20%, preferably 5%, even more preferably 2%, of the total length of the column. the column.
- a lateral opening 42 is formed in the side wall of the tube 40.
- the opening 42 is arranged such that axial displacement of the tube 40 away from the column 12 makes it possible to at least partially discover the opening 42, as illustrated in FIG. FIG. 3B and allowing the concrete and / or the sludge exiting through the outlet orifice 18 to pass outside the column 12.
- the retaining means have a shape similar to that of the preceding variant, but the concreting column 12 has this time an outlet opening 19 formed in its side wall.
- the tube 40 forming a valve is adapted to be displaced axially relative to the column 12, here by means of a jack 20, so that the axial openings of the tube and the column respectively referenced 42 and 19, are positioned facing each other in at least one configuration of the installation illustrated in Figure 1C, and that the flow section through the axial opening 19 of the column 12 can be modified by moving the tube 40 relative to the column 12.
- the lateral opening 19 of the column 12 is opposite the lateral opening 42 of the tube 40.
- the concrete and / or the sludge contained in the column 12 can escape from it. by said openings 19, 42.
- a retaining device is formed by a tube 40 coaxial with the column 12, but this time mounted outside thereof.
- the concreting column 12 has a lateral opening 19 and the tube 40 has a lateral opening 42.
- the tube 40 is rotatably mounted about the axis A.
- the tube 40 By being displaced relative to the column 12, the tube 40 can pass from a position as illustrated in FIG. 5A, in which the lateral openings 42, 19 of the tube 40 and of the column 12 are opposite, allowing the passage of the concrete and / or mud at a position as illustrated in Figure 5B, in which the openings 42, 19 are not superimposed or only partially, thus defining a smaller flow section than in the position previous, or even a section of zero flow.
- the concrete installation 110 is provided with a concrete column 112 of axis A, through which the concrete is introduced into the excavation E.
- It may also comprise a frame, support and guide means for the concrete column, and other equipment such as described in connection with the first embodiment.
- the characteristics described with reference to FIG. 1 are not repeated here for the sake of brevity, but remain applicable to this second embodiment.
- the concreting column 112 is here provided with a concrete retaining device on its upper part.
- this retaining device is constituted by a valve 160, and in particular a pinch valve, well known to those skilled in the art.
- valve 160 forms an intermediate retaining bearing for the concrete.
- Column 112 has a total height H2.
- a valve 160 is disposed at a distance H5 from the upper end of the column 112, the distance H5 being less than half of the total height H2 of the column.
- valve 160 is partially closed, to avoid the steep descent of the concrete in the column filled with sludge, and the phenomena of segregation and plugs already mentioned.
- the installation comprises a device for measuring the flow rate inside the concreting column 112.
- This measuring device here includes a pipe 152 connected to the concreting column near its lower end and equipped with a flowmeter 154, itself connected to the control unit 90.
- the concreting column 112 is plugged at the bottom (the lower end of the column 112 bears against the bottom of the excavation).
- the sludge, pushed by the concrete, is evacuated by the pipe 152.
- the supply of the concrete column is stopped, the column is raised by a height substantially equal to the length of a section, and the upper end element is removed.
- valve 160 When the concreting is resumed, the valve 160 is brought into the closed position, so that the concrete poured into the column is then retained at the valve 160.
- the height of the concrete fall is equal to the distance H5 minus the length of a column element, and is chosen to not exceed the limit drop height of the concrete.
- a free space 170, filled with air, is defined between the valve 160 and the lower end of the column, more precisely between the valve 160 and the free surface of the concrete remaining in the lower part. of the column at the end of the last concreting cycle.
- the valve is then opened, partially or totally, to continue concreting.
- the height of fall H6 of the concrete inside the free space 170 does not exceed, again, the predefined limit.
- the concrete installation comprises means for evacuating the air trapped in a column section.
- the evacuation means comprise, in the example, an air duct 150 disposed outside the column and communicating with the section of the concreting column 112 situated directly downstream of the valve 160.
- the pipe 150 can also extend axially inside the concreting column.
- it can be mobile and can include a flowmeter 154 to measure the flow rate of the sludge inside the concreting column, at the time of priming. It thus fulfills the function of the pipe 152 described above, which can therefore be omitted.
- FIG. 8 illustrates a third embodiment of the invention, in which retaining devices are arranged to retain the concrete at a plurality of axially spaced retaining points inside the concreting column, during a same concreting cycle.
- valves 260a, ..., 260d forming retaining devices, actuated independently of each other, are distributed over the height of the concreting column 212, each valve forming such a retaining point or, in other words, a retaining bearing for concrete.
- Figure 8 illustrates the concreting installation before the beginning of a second concreting cycle.
- the upstream valve 260a (i.e. closest to the upper end of the column) is in the closed position.
- valves 260c, 260d, etc. The same principle is applied to the other valves 260c, 260d, etc., to split the displacement of the concrete inside the column 212 into several sections of acceptable height.
- air discharge means identical to those described above can also be used here.
- evacuation pipes inside or outside the column, communicating with the sections of the concreting column 212 delimited by two adjacent valves.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1362002A FR3014123B1 (fr) | 2013-12-03 | 2013-12-03 | Installation de betonnage et procede de betonnage correspondant |
| PCT/FR2014/053142 WO2015082838A1 (fr) | 2013-12-03 | 2014-12-03 | Installation de betonnage et procede de betonnage correspondant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3077599A1 true EP3077599A1 (fr) | 2016-10-12 |
| EP3077599B1 EP3077599B1 (fr) | 2019-07-17 |
Family
ID=50639611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14825404.8A Active EP3077599B1 (fr) | 2013-12-03 | 2014-12-03 | Installation de betonnage et procede de betonnage correspondant |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10113288B2 (fr) |
| EP (1) | EP3077599B1 (fr) |
| CA (1) | CA2932450C (fr) |
| FR (1) | FR3014123B1 (fr) |
| WO (1) | WO2015082838A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3919684B1 (fr) * | 2020-06-04 | 2024-08-07 | BAUER Maschinen GmbH | Excavateur et procédé de création d'une fente dans le sol |
| CN112727102B (zh) * | 2021-01-06 | 2025-07-25 | 中国化学工程第十一建设有限公司 | 混凝土浇筑导流装置及污水处理水池施工方法 |
| CN113653060A (zh) * | 2021-07-28 | 2021-11-16 | 中国建筑第八工程局有限公司 | 多支撑梁的深基坑底板混凝土浇筑系统及其施工方法 |
| CN113818442A (zh) * | 2021-08-17 | 2021-12-21 | 山东大学 | 一种滑动触发式钻孔桩混凝土灌注高度控制装置及方法 |
| CN115247496B (zh) * | 2022-09-22 | 2023-03-10 | 保利长大工程有限公司 | 自密实混凝土浇筑质量控制方法、终端及存储介质 |
| US12281454B2 (en) * | 2022-12-12 | 2025-04-22 | Richard W. Watson | Automatic pilot valve system for foundation tooling |
| CN116591177B (zh) * | 2023-05-26 | 2026-04-17 | 湖南德联公路工程有限公司 | 一种一体化注浆设备及其使用方法 |
| CN117344739A (zh) * | 2023-11-08 | 2024-01-05 | 中国港湾工程有限责任公司 | 桩基施工装置 |
| CN119553726B (zh) * | 2024-11-14 | 2025-12-26 | 中铁二十局集团南方工程有限公司 | 地下连续墙槽壁坍塌后防超灌检测装置及方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3422629A (en) * | 1967-09-06 | 1969-01-21 | James P Watts | Construction support system and methods and apparatus for construction thereof |
| NL7805960A (nl) * | 1978-06-01 | 1979-12-04 | Tot Exploit Betonmortel | Inrichting en werkwijze voor het storten van beton en een mondstuk hiervoor. |
| CN2778882Y (zh) * | 2005-04-15 | 2006-05-10 | 黄英才 | 桩砼准控器 |
-
2013
- 2013-12-03 FR FR1362002A patent/FR3014123B1/fr active Active
-
2014
- 2014-12-03 CA CA2932450A patent/CA2932450C/fr active Active
- 2014-12-03 US US15/101,371 patent/US10113288B2/en active Active
- 2014-12-03 EP EP14825404.8A patent/EP3077599B1/fr active Active
- 2014-12-03 WO PCT/FR2014/053142 patent/WO2015082838A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CA2932450C (fr) | 2022-04-12 |
| US10113288B2 (en) | 2018-10-30 |
| WO2015082838A1 (fr) | 2015-06-11 |
| EP3077599B1 (fr) | 2019-07-17 |
| US20160305084A1 (en) | 2016-10-20 |
| CA2932450A1 (fr) | 2015-06-11 |
| FR3014123B1 (fr) | 2015-12-18 |
| FR3014123A1 (fr) | 2015-06-05 |
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