WO2016139523A1 - Marteau pneumatique et hydraulique perfectionné pour la pose rapide et économique de pieux en béton armé - Google Patents
Marteau pneumatique et hydraulique perfectionné pour la pose rapide et économique de pieux en béton armé Download PDFInfo
- Publication number
- WO2016139523A1 WO2016139523A1 PCT/IB2016/000207 IB2016000207W WO2016139523A1 WO 2016139523 A1 WO2016139523 A1 WO 2016139523A1 IB 2016000207 W IB2016000207 W IB 2016000207W WO 2016139523 A1 WO2016139523 A1 WO 2016139523A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hammer
- sheep
- cylinder
- pile
- hydraulic
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/08—Drop drivers with free-falling hammer
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
Definitions
- the invention relates to a device, henceforth called a "hammer”, which can be adapted to a hydraulic excavator or backhoe excavator type machine, on tires or caterpillar, commonly used on construction sites, for driving into the ground quickly and economically reinforced concrete piles, replacing the traditional hammer-crane to drive piles into the ground.
- a hammer which can be adapted to a hydraulic excavator or backhoe excavator type machine, on tires or caterpillar, commonly used on construction sites, for driving into the ground quickly and economically reinforced concrete piles, replacing the traditional hammer-crane to drive piles into the ground.
- the invention also allows the penetration of a type of pile studied to cooperate with the cited device, pile already claimed with different characteristics in the applicant's earlier patent application published under the number CH707119A2.
- a hammer crane Whenever it is necessary to drive reinforced concrete piles into the ground on a civil construction site, a hammer crane must be brought in and used as a heavy, expensive machine to rent, transport and operate. , and slow to move if one must exceed the radius of action of the crane.
- the invention makes it possible, by the proposed device, to extend significantly the range of applications of the technique of piles to all kinds of constructions which previously had to be satisfied with the traditional foundations, soles and columns of reinforced concrete coffered on the spot .
- the hammer mounted on existing machines, which are recognized of a foolproof quality and which are found in large numbers in all countries, allows to pose specially designed piles forming a particularly happy combination with the hammer, by a technique new, fast and rational.
- the invention thus makes it possible to offer to an extended range of small and medium-sized constructions an advantageous option compared to the conventional system of foundations and soles of reinforced concrete. For example, constructions on the seashore, in areas regularly flooded by a rise in water at certain times of the year, dwellings on steep ground where heavy rain infiltrates and causes landslides, will benefit remarkably the pile laying system by the hammer object of the invention.
- the object of the present invention is to propose a pneumatic and hydraulic hammer may, among other applications, be adapted to a shovel-type machine
- Another object of the present invention is to provide a slideway to hold the hammer in position.
- An additional object of the invention is to propose a pile particularly well adapted to its insertion by the proposed hammer.
- the invention proposes a hammer of novel design, constituting a technical improvement of the hammer claimed in the applicant's earlier patent application, published under the number CH707119A2 referred to herein as a reference.
- the application CH707119A2 claims an adapter device for the laying of reinforced concrete piles, which can be easily adapted to a construction machine of the excavator-backhoe type, comprising an arm constituting a small crane for suspending a hammer by a cable, the hammer that can be positioned and engaged on the upper part of a pile to be driven into the ground.
- the application 707119 claims as control element of the lifting and then the release of the sheep, which is the driving element of the pile during its fall, a moving sleeve.
- the friction of this moving sleeve on its seals can cause a delay and an inaccuracy in the control of the movement of this jacket, control based on an automatic pneumatic action obtained during the rise of the sheep, described in the application 707119.
- a servo-controlled pressure-sensitive valve is proposed, however this pressure depends not only on the upward movement of the sheep, but also on the air temperature trapped above the sheep, this temperature increasing after a few cycles , which also constitutes a source of inaccuracy of the control of the shirt.
- the devices for anchoring and releasing the sheep on the one hand, and control of these different phases of the work cycle on the other hand are totally different.
- the device for guiding the hammer on a backhoe machine described in the application CH707119 did not provide sufficient guarantees of maintaining the hammer in the correct position during the striking of the pile, with regard to the reaction movements on the hammer after each percussion of the sheep on the pile.
- the present application comprises a slide which allows a much better guidance of the hammer.
- US5375664 claims a device for driving piles with a hydraulic hammer striking at a rate of more than 400 strokes per minute. At this rate, the mass of the hammer is necessarily relatively small, and the device is aimed at the driving of very thin piles, like piles of fence.
- the device further comprises a winch, and its installation on a backhoe is not immediate.
- the application US2006213676 claims a hammer device raised by a pneumatic or hydraulic cylinder. It includes a cable transmission to reduce the impact in reaction on the rod of the cylinder. Installation of the device on a backhoe is not immediate.
- US4099579 is a device that can fit on a backhoe without modifying it, for drilling applications. There are several patents proposing to adapt a backhoe for drilling.
- Patent JP6146279 claims a device for driving piles with a relatively small mass hydraulic hammer, for driving very thin piles, kind of fence pile. His installation on a backhoe is not immediate.
- One of the features claimed relates to the reduction of reactions on the arm of the excavator to reduce operator fatigue.
- JP2002129566 application is for a device for essentially extracting piles by resting on a neighboring pile; it would also be able to drive a stake by resting on a neighboring stake urged in traction this time. In this case, the description does not explain clearly what would ensure the driving of the pile instead of the extraction of the neighboring stake.
- the device comprises a winch and a hydraulic cylinder.
- the hammer relatively simple and light, can be easily mounted on one of the most common small construction machines, the backhoe, a handy automobile machine par excellence, at the cost of rental and reduced operation. This gives a functional working tool and very low cost, perfectly suited to the task at hand, by design.
- the device allows a very fast installation of the piles with inexpensive and efficient equipment.
- the device makes it possible to obtain a cost price of the pile meter that is very low because of its shape and its lightness.
- the backhoe does not undergo any modification, but receives the device of the invention consisting of added parts that are fixed and removed in a few minutes if necessary.
- the backhoe can be used without difficulty both in its original intended function (no calving, earth moving) and for laying piles.
- the part of the mechanics added represents only the 15 to 20% of the price of the basic machine (excavator, backhoe or backhoe loader).
- FIG. the one distinguishes a hammer consisting of a base cylinder 2 made of steel tube inside which slides a sheep 3 of the order of a half ton dropping about 0.45 [m] maximum height.
- the number of falls per minute would advantageously be 20 to 30 shots.
- the drop height of the sheep can be adjusted by a pneumatic system cooperating with the hydraulic circuit, so the machinist can vary the threshing force as necessary.
- the hammer is advantageously guided by a slide which will be detailed below, slide can be fixed to the forearm of the shovel. Then, the hammer is put in position on the pile to be driven and the operator can send the oil pressure to the hammer and adjust the drop height as needed.
- Sheep 3 consists of a cylindrical steel mass which slides from top to bottom and vice versa in the base cylinder 2.
- This sheep 3 is constructed to withstand shocks, and has on its periphery circular seals, which serve to compress the air on and possibly under the sheep 3. These seals are of the type commonly used in pneumatic devices.
- a bore for housing a mechanical device 6 provided with various control members 17, 18, 19.
- a hydraulic jack 4 raises the sheep 3 by the sequence detailed below.
- the rod 4C of the cylinder 4 provided with a central recess allowing the passage of oil, descends under a very low hydraulic pressure supplied by the supply and distribution block 1, pressure being exerted on the upper face of the piston 4B of the cylinder, ⁇ lower end of the rod 4C of the cylinder comprising the device 6 for locking the driving mass of the sheep 3 on the rod 4C without any effort.
- This device 6 (detailed in 6A) comprises a small cylinder-shaped piece 17 cylindrical on its upper part and having approximately on its lower part the profile of a bottle with inverted drinks.
- Figures 3a, 3b, 4 and 5 show details of a possible alternative embodiment of the anchoring device and release with 8 balls by way of example.
- ⁇ axis of the hydraulic cylinder is shown horizontally for reasons of congestion of the figure; the portion situated above the axis of the jack represents a tubular control piece in the lower position, the portion situated below the axis of the jack represents the same tubular piece in the high position, but these two views indicate two different positions of the same room. Similarly, a ball is shown near the axis on the upper part of FIG. 4, while another ball is shown in position away from the axis on the lower part of FIG. 4.
- the lower end of the piston rod of the hydraulic cylinder is integral with a disk having an annular portion on its upper face. This annular portion can jam the balls against a concave curved surface and revolution arranged on the lower portion of the internal bore of the sheep. It should be understood that the cylinder rod is much longer than that shown in Figure 4; this rod is shown cut and shortened in FIG. 4 for reasons of congestion of the figure, while sufficiently detailing the anchoring device.
- this device is as follows: when the balls are jammed as shown at the bottom of FIG. 4, in that the tubular control part has adopted the high position, when rods located on the lower part of this piece have hit the bottom of the bore of the sheep when the end of the fall of the sheep when it comes crashing the intermediate damping device between the sheep and the pile to be driven, the piston of the hydraulic cylinder, subjected to a pressure coming from an automatic hydraulic control system depending on sheep limit sensors, can then, by exerting its passing force by the rod of the cylinder and the balls,
- a cushion of air trapped between two discs visible on the top of FIGS. 3a and 3b acts as a damper, adjustable by the valves 5, of the upward movement of the sheep. Valves on the disks delimiting the cushion also allow to renew ⁇ compressed air by the sheep during its upward stroke, so as to avoid excessive heating of this volume of air.
- This damper 7 comprises an upper plate secured in its lower part of a hydraulic cylinder accumulator of a small volume of oil.
- a metal part 8 receives the movement of the upper plate of the damping au through springs which can be of the coil or blade type, with a damping effect obtained by the oil of the accumulator cylinder which can circulate only through an orifice
- the metal part 8 slides in the base cylinder 2 in a helical movement at each percussion of the mass of the sheep, with guides or grooves of
- the metal part 8, 8A transmits its movement to the intermediate plate 9, 9A which is provided with a hexagonal tube 10, 10A of steel transmitting its movement to a complementary piece consisting of a hexagonal steel bolt incorporated in the head of the pile to press.
- the sectional view BB shows in detail the part 8A and the plate 9A.
- the bottom of the base cylinder 2 consists of a plate pierced with an opening allowing the passage of the pile to be driven.
- the pile 15 is advantageously made of high strength centrifuged prefabricated concrete, provided with a steel frame 12, to ensure its strength and rigidity.
- the pile may also be provided with a recess 14 in its center to allow a possible subsequent injection of concrete.
- Helical ribs 13 integrated on the cylindrical periphery of the pile constitute a thread allowing the pile to sink into the ground by screwing.
- This type of pile is an improvement of the pile already claimed in the previous application CH7071 19 A2 of the applicant.
- the pressure of the volume of air trapped in the cylinder 2 above the sheep can be adjusted via an adjustable side valve 5. This pressure will add an adjustable force directed down when the sheep falls, this force adding to the weight of the sheep.
- a polytropic evolution with exponent 1.3 we adopt here the Saxon notation of the decimal point instead of the comma, this one being used occasionally as separator of number of designation of components in the text and on the figures)
- Vi is calculated by the formula ⁇ 1 ⁇ , we obtain 0.0161 [m A 3]
- the total kinetic energy of 15570 [J] makes it possible to drive the pile of a significant value at each stroke, but according to the actual section of the pile used and the nature of the terrain, the operator can adjust the initial value of the pressure. air at the beginning of the fall of the sheep to a lower value, thanks to the adjustable valves 5 and an optional air inlet adjustment valve located on the outer lateral surface of the cylinder 2, to the right of the visible radial orifices in fig. the. It is clear that the calculation of this energy transmitted to the sheep is approximate; for simplicity losses have not been taken into account, in particular by friction on the joints of the sheep.
- the pressure oil supply of the hammer and the oil return are ensured by the connections of the power supply and distribution 1.
- the oil supply of the hammer can be provided by the existing hydraulic circuit on this construction machine.
- the existing oil pump on the latter must be sufficient to raise the sheep, because it is not requested by the hydraulic cylinders of the shovel, when the hammer is used.
- FIG. 2 For use of the hammer object of the present application on a backhoe, another improvement of the hammer, compared to the previous application of the applicant already cited above, is constituted by a slide shown in FIG. 2.
- a slide can be fixed on the forearm of the backhoe and its function is threefold:
- the slide is made of a steel structure 25 made of structural steel with U-shaped rails allowing the hammer 21 to descend while resting on the structure.
- the slide has a hydraulic winch 26 driving a triplex chain 23 via a gear wheel 28.
- the hammer is driven by the chain.
- the slide is fixed on the forearm of the backhoe by a high resilience bolt 22 and the hammer is placed in position on the pile 24 to be driven by the action of the mechanical and hydraulic system 27 for driving the winch.
- the oil supply 30 of this drive system is provided by the existing connections on the arm of the backhoe.
- the slide will be supported at a firm point 29 on the ground so as to ensure the good stability of the slide in the vertical position.
- Fig. the: hammer shown vertically in section with the sheep in a high position
- Fig. lb hammer shown vertically in section with the sheep in the down position
- Fig. 2 slide for the support and guide of the hammer
- FIG. 5 Fig. 3a, Fig. 3b, FIG. 4, FIG. 5:
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112017020549A BR112017020549A2 (pt) | 2015-03-04 | 2016-02-24 | martelo pneumático e hidráulico aperfeiçoado para cravação rápida e econômica de estacas de concreto armado |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00296/15A CH709495A2 (fr) | 2014-04-09 | 2015-03-04 | Marteau pneumatique et hydraulique pour la pose de pieux en béton armé. |
CH00296/15 | 2015-03-04 | ||
IBPCT/IB2015/000455 | 2015-04-08 | ||
PCT/IB2015/000455 WO2016162708A1 (fr) | 2015-04-08 | 2015-04-08 | Adaptateur pour la pose rapide et économique de pieux en béton armé |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016139523A1 true WO2016139523A1 (fr) | 2016-09-09 |
Family
ID=53175548
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2015/000455 WO2016162708A1 (fr) | 2015-03-04 | 2015-04-08 | Adaptateur pour la pose rapide et économique de pieux en béton armé |
PCT/IB2016/000207 WO2016139523A1 (fr) | 2015-03-04 | 2016-02-24 | Marteau pneumatique et hydraulique perfectionné pour la pose rapide et économique de pieux en béton armé |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2015/000455 WO2016162708A1 (fr) | 2015-03-04 | 2015-04-08 | Adaptateur pour la pose rapide et économique de pieux en béton armé |
Country Status (2)
Country | Link |
---|---|
BR (2) | BR112017021369A2 (fr) |
WO (2) | WO2016162708A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109262805A (zh) * | 2018-11-02 | 2019-01-25 | 潍坊科技学院 | 一种温室结构土块成型装置及其使用方法 |
CN111733797A (zh) * | 2020-05-30 | 2020-10-02 | 黄立贤 | 一种混凝土管桩用施工装置及方法 |
EP3792404A1 (fr) * | 2019-09-12 | 2021-03-17 | Krinner Innovation GmbH | Dispositif de vissage et de battage |
US11008725B2 (en) | 2018-06-14 | 2021-05-18 | Krinner Innovation Gmbh | Driving device with impact effect |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111456002B (zh) * | 2019-01-22 | 2021-07-23 | 义乌工商职业技术学院 | 一种土木工程用小型建筑打桩机 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1156824A (en) * | 1965-05-24 | 1969-07-02 | Gen Dynamics Corp | Vibratory Impact Tool. |
US4099579A (en) | 1977-02-09 | 1978-07-11 | Stormon Harry J | Drill mounting device for backhoe attachments |
JPH06146279A (ja) | 1992-11-12 | 1994-05-27 | Kubota Corp | 簡易杭打機 |
US5375664A (en) | 1993-06-15 | 1994-12-27 | Mcdowell; Michael M. | Pile driver |
JP2002129566A (ja) | 2000-10-20 | 2002-05-09 | Shin Nippon Kogyo Kk | 杭の圧入及び引き抜き装置 |
US20060213676A1 (en) | 2005-03-08 | 2006-09-28 | John Jinnings | Pile driver |
CH707119A2 (fr) | 2012-10-23 | 2014-04-30 | Albert Primo Rombaldi | Dispositif pour la pose de pieux et pieux adaptés à un tel dispositif. |
CH709495A2 (fr) | 2014-04-09 | 2015-10-15 | Albert Rombaldi | Marteau pneumatique et hydraulique pour la pose de pieux en béton armé. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6966727B2 (en) | 2003-03-14 | 2005-11-22 | Precision Piling Systems, Llc | Apparatus for and method of installing segmented concrete pilings in new construction |
CN201314046Y (zh) | 2008-12-04 | 2009-09-23 | 合肥工业大学岩土工程勘察设计研究院 | 现浇十字形桩沉模装置 |
-
2015
- 2015-04-08 BR BR112017021369A patent/BR112017021369A2/pt not_active IP Right Cessation
- 2015-04-08 WO PCT/IB2015/000455 patent/WO2016162708A1/fr active Application Filing
-
2016
- 2016-02-24 WO PCT/IB2016/000207 patent/WO2016139523A1/fr active Application Filing
- 2016-02-24 BR BR112017020549A patent/BR112017020549A2/pt not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1156824A (en) * | 1965-05-24 | 1969-07-02 | Gen Dynamics Corp | Vibratory Impact Tool. |
US4099579A (en) | 1977-02-09 | 1978-07-11 | Stormon Harry J | Drill mounting device for backhoe attachments |
JPH06146279A (ja) | 1992-11-12 | 1994-05-27 | Kubota Corp | 簡易杭打機 |
US5375664A (en) | 1993-06-15 | 1994-12-27 | Mcdowell; Michael M. | Pile driver |
JP2002129566A (ja) | 2000-10-20 | 2002-05-09 | Shin Nippon Kogyo Kk | 杭の圧入及び引き抜き装置 |
US20060213676A1 (en) | 2005-03-08 | 2006-09-28 | John Jinnings | Pile driver |
CH707119A2 (fr) | 2012-10-23 | 2014-04-30 | Albert Primo Rombaldi | Dispositif pour la pose de pieux et pieux adaptés à un tel dispositif. |
CH709495A2 (fr) | 2014-04-09 | 2015-10-15 | Albert Rombaldi | Marteau pneumatique et hydraulique pour la pose de pieux en béton armé. |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11008725B2 (en) | 2018-06-14 | 2021-05-18 | Krinner Innovation Gmbh | Driving device with impact effect |
CN109262805A (zh) * | 2018-11-02 | 2019-01-25 | 潍坊科技学院 | 一种温室结构土块成型装置及其使用方法 |
EP3792404A1 (fr) * | 2019-09-12 | 2021-03-17 | Krinner Innovation GmbH | Dispositif de vissage et de battage |
CN111733797A (zh) * | 2020-05-30 | 2020-10-02 | 黄立贤 | 一种混凝土管桩用施工装置及方法 |
CN111733797B (zh) * | 2020-05-30 | 2021-10-01 | 十一冶建设集团有限责任公司 | 一种混凝土管桩用施工装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
BR112017020549A2 (pt) | 2019-09-24 |
BR112017021369A2 (pt) | 2019-09-24 |
WO2016162708A1 (fr) | 2016-10-13 |
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