EP2119833A1 - Verfahren zur Bodenbearbeitung - Google Patents

Verfahren zur Bodenbearbeitung Download PDF

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Publication number
EP2119833A1
EP2119833A1 EP08156087A EP08156087A EP2119833A1 EP 2119833 A1 EP2119833 A1 EP 2119833A1 EP 08156087 A EP08156087 A EP 08156087A EP 08156087 A EP08156087 A EP 08156087A EP 2119833 A1 EP2119833 A1 EP 2119833A1
Authority
EP
European Patent Office
Prior art keywords
ground
drive
slim element
slim
guide
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Withdrawn
Application number
EP08156087A
Other languages
English (en)
French (fr)
Inventor
Erik Gerhard Berndsen
Adrianus Hendrikus Johannes Maria Kuiten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEIJMANS INFRASTRUCTUUR BV
Original Assignee
HEIJMANS INFRASTRUCTUUR BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HEIJMANS INFRASTRUCTUUR BV filed Critical HEIJMANS INFRASTRUCTUUR BV
Priority to EP08156087A priority Critical patent/EP2119833A1/de
Publication of EP2119833A1 publication Critical patent/EP2119833A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
    • 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 invention relates to the field of carrying out work, such as soil-drilling tests, in ground.
  • the object of such work can vary, and is connected with various specialities in the field of soil mechanics.
  • An example is the examination of a site for the presence of explosives such as unexploded bombs and the like. Such an examination is often necessary if a certain area in which it is suspected that such explosives are present is being developed. Clearing up explosives is dangerous because the position of bombs and the like is not known.
  • a further example known from practice relates to the performance of soil-drilling tests in connection with determining the load-bearing capacity of the ground, for example for building a road, or for industrial sites, dwellings and the like.
  • a reliable foundation can be designed on the basis of the data obtained by means of soil-drilling tests.
  • the structure of the ground can also be determined by means of soil-drilling tests.
  • Soil-drilling tests can be used in particular in ground with relatively soft, compressible strata.
  • a slim element which can consist of a steel tube with a conical or cone-shaped tip, is used.
  • the resistance met with by the cone while the slim element is being forced in is measured.
  • the data relating to the mechanical resistance and often also relating to the shaft friction are established.
  • the conductivity of the ground and possibly of the groundwater is also measured. A good picture of the soil characteristics can be obtained from these data.
  • a force that is sufficiently great to force the slim element into the ground must be delivered by means of the pressure element.
  • a hydraulic press and the like, for example, can be used for that purpose.
  • the slim element can be of quite great length, for example up to 20 metres.
  • handling a slim element of great length is difficult, and for that reason such a slim element is assembled from a number of sections of limited length.
  • a second section can be fixed on it, after which the assembly is forced further into the ground, and so on.
  • the object of the invention is therefore to provide a method of the type described in the preamble, in which such a troublesome delay can be avoided. That object is achieved by means of a method for carrying out work in ground, comprising the steps of:
  • the method according to the invention is carried out by means of, in combination, a slim element which can be assembled from a number of sections connected in series, and also a handling device provided with a mobile frame, and a drive-in device, supported on the frame, for forcing the slim element into the ground.
  • this soil-drilling test device which is known per se, is operated in a manner which differs from the conventional one.
  • the slim element is in fact assembled only once, and is then maintained in its assembled state in such a way that it can be used directly for a subsequent soil-drilling test at another place. This means a considerable time saving, particularly where there are a large number of soil-drilling tests to be carried out at a short distance from each other, such as is the case, for example, when the ground is soft.
  • the slim element will be disassembled into the separate sections when it is being removed at the last position.
  • the disassembly of the slim element need only be performed once, which also again results in time being saved.
  • the drive-in device is supported on the frame, and in certain cases can be immovably fixed on the frame.
  • the drive-in device can then, for example, force the slim element into the ground through a suitable opening in the frame.
  • this method comprises the steps of:
  • the drive-in device placed on the ground has a stable position, such that the slim element can be forced in a suitable manner into the ground without the frame being overloaded in the process.
  • the invention furthermore relates to the combination of a handling device comprising a mobile frame and a force-in device supported on the frame, and also at least two sections which can be assembled in series to form a slim element.
  • a handling device comprising a mobile frame and a force-in device supported on the frame
  • the sections are fixed on each other one by one in each case to form the slim element, and are disassembled from each other again one by one after each soil-drilling test.
  • the drive-in device is provided with a guide which has a length identical to the length of at least two assembled sections.
  • the guide with a relatively great length makes it possible to handle the slim element as one unit not only for removing it after a first soil-drilling test, but also for subsequently moving the placing device and then driving the slim element into the ground at another position. This means that it is not necessary to take the slim element apart and reassemble it at different positions.
  • the drive-in device preferably has a housing containing drive-in elements which can act upon the slim element, the guide being fixed on the housing of the drive-in device.
  • Said drive-in elements can be designed in many different ways, which are known per se and will not be described in any further detail. Hydraulic drive-in elements are one example.
  • the drive-in device disclosed in Dutch Patent 1.021.599 could also be used. This publication discloses a slim element which is clamped between the two facing parts of two chains, each link of a chain bearing a thrust block with a contour that is shaped according to the outer surface of the slim element and acts upon said surface.
  • a table is preferably provided at a distance above the housing, in such a way that a section can be placed between the table and the housing in each case during the assembly of the slim element.
  • the guide can then be fixed on the table.
  • This guide in turn can be designed in many different forms, on condition that these forms are suitable for guiding the long slim element in a suitable manner without bending or buckling occurring in it.
  • An example is a guide in the form of a long hollow tube with an internal diameter that is greater than the greatest transverse measurement of the slim element.
  • the guide can, however, be any substantially prismatic guide structure having an internal passage whose transverse measurements are greater than the transverse measurements of the slim element.
  • the guide structure must have such strength and rigidity that, despite the fairly great upwardly projecting length, it can support the slim element in a suitable manner. This means that the guide structure must be capable of withstanding the shocks and swings undergone by the frame while travelling over uneven terrain between the various positions where soil-drilling tests have to be carried out. On the other hand, it is undesirable to make the guide structure too heavy, since the mass inertia of the guide structure adversely affects the stability of the placing device.
  • the table is therefore preferably provided with brackets, between which brackets and a part of the guide structure that is situated higher up tension elements extend in each case.
  • the tension elements which can be held at a distance from the guide structure by means of brackets, considerably increase the bending stiffness without the weight having to be increased too much for that purpose.
  • the tension elements can be guided over auxiliary brackets fixed on the guide structure.
  • the guide structure could be designed, for example, in the form of a tube.
  • a light and reliable design of the guide structure is one with a lattice structure.
  • Such a lattice structure can have, for example, a triangular or rectangular cross section.
  • the invention also relates to a handling device which can be used in combination in the abovementioned method.
  • This handling device can comprise a mobile frame, a platform provided on the frame, which platform can rotate relative to the frame according to a substantially vertical axis, an arm which is provided on the platform and can rotate relative to the platform according to a substantially horizontal axis, as well as suspension means on the free end of the arm, from which suspension means the force-in device is suspended.
  • Such a handling device increases the possibilities for carrying out soil-drilling tests.
  • the various degrees of freedom that are obtained by means of the rotatable platform and the arms fixed rotatably on it make it possible to always place the force-in device in the desired position.
  • the force-in device can be held securely and stably in the desired position by means of the frame and the arm.
  • the suspension means can comprise a pivoted connection between the arm and the housing of the force-in device.
  • the suspension means can comprise an actuator, which is connected at one side to the arm and at the other side to the housing of the force-in device, in order to make the force-in device rotate relative to the arm about the pivoted connection.
  • US Patent Specification 5.592.993 discloses a device with a frame, a platform rotatably mounted on the frame, and an arm rotatably suspended on the frame, to which arm a drilling device is fixed.
  • Said drilling device has a telescopic bearer, which guides the drill, drill motor and drill rod when carrying out the drilling operations.
  • the bearer is placed on the ground in this process.
  • Such a device is not suitable for forcing a slim element into the ground.
  • this known device is not suitable for manoeuvring a slim element of great length.
  • Figures 1 and 2 show the handling device indicated in its entirety by reference numeral 1, and also the slim element 2 manoeuvred by means of said handling device 1.
  • the slim element 2 is composed of a number of standard sections 3 and the section 4 with a cone-shaped end 5 provided at the bottom end.
  • the connections between the sections 3, 4 are known per se, and are therefore not shown in any further detail.
  • a slim element 2 of the desired length can be obtained, for example a length between 10 and 20 m, depending on the ground in which the soil-drilling test is to be carried out.
  • the section 4 with cone-shaped end 5 is usually lengthened in each case by fitting further sections 3 and stepwise forcing the slim element 2 thus being formed into the ground.
  • a section 3 is usually in each case detached and removed, and so on.
  • the purpose of the handling device 1 is to provide a more efficient way of carrying out soil-drilling tests in the ground.
  • the handling device 1 has a guide indicated in its entirety by 6, which is suitable for guiding the slim element 2 up and down when it is being forced into and removed from the ground respectively.
  • This guide 6 is composed of the lattice structure 7, which has a triangular cross section, as can be seen in the section of Figure 2 .
  • the lattice structure 7 can be composed of a number of lattice structure segments 8.
  • the lattice structure 7 per se has a relatively low bending stiffness.
  • brackets 9 which form part of the table 10 are provided.
  • Said table 10 is supported on the housing 12 by means of supports 11 of the force-in device 13. Furthermore, a platform 14 for the operating personnel is fixed on the housing 12. A stock 17 of sections 3 can also be present on the table 10, in connection with assembling and disassembling the slim element 2 respectively.
  • brackets 9 project relative to the table 10 and the housing 12. Tension elements extend from the brackets 9, in the present example pulling cables 15, which are fixed at a higher level on the lattice structure 7 by means of auxiliary brackets 16. In addition, yet further pulling cables can be provided (not shown), extending from the brackets 9 as far as near the top of the lattice structure 7. By means of the combination of the lattice structure 7, brackets 9 and pulling cables 15, the guide 6 has obtained a relatively higher bending stiffness.
  • the whole assembly consisting of the force-in device 13 with the guide 6 thereon, is fixed on the vehicle 18.
  • Said vehicle 18 has a frame 19 provided with caterpillars 20.
  • Platform 21 is mounted on the frame 19 so that it rotates about a vertical axis, which platform bears drives and a cab 22.
  • An arm 23 is also supported on the platform 21 so as to pivot about pivot pin 24 with horizontal axis. By means of the piston/cylinder device 25, the arm 23 can move up and down about the pivot pin 24.
  • a pivot pin 26 On the free end of the arm 23 is a pivot pin 26 on which the bearer 27 is fixed. Furthermore, that end of the arm is provided with an actuator 28, which at one side acts upon the arm and at the other side acts upon said bearer.
  • the bearer 27 can be tilted by lengthening or shortening the actuator 28.
  • the drive-in device 13 and guide 6 can also be tilted, for example in connection with transport after the guide has been removed.
  • the drive-in device 13 is suspended from the bearer 27.
  • the housing 12 of the drive-in device 13 has feet 29.
  • the drive-in device 13 is provided with drive -in elements 30 known per se, which can be driven hydraulically, for example.
  • the handling device 1 is positioned at the desired place, and in particular the drive-in device 13 is set down at the correct position, the feet 29 going onto the surface of the ground. This can be achieved by manoeuvring the vehicle 18 and also by manoeuvring the arm 23 in a suitable manner.
  • the slim element 2 is assembled by assembling sections 3, 4 in each case. After the slim element 2 has been driven into the ground and desired results have been obtained, the slim element 2 can be moved upwards in its entirety, i.e. without detaching and removing the sections 3, 4 all separately again, the guide 6 ensuring that the relatively easily bending slim element is well supported.
  • the vehicle 18 can then be driven to the next position, where the slim element 2 can be driven directly into the ground and can carry out measurements. There is no longer any stoppage for fitting a new section 3 each time, which results in time gained and a cost saving.
  • a slim element can also be driven into the ground by means of the device for other purposes.
  • An example is driving a slim element into the ground for introducing or injecting certain fluids.
  • a particular example is the injection of bacterial solutions into soil for the purpose of combating soil pollution.

Landscapes

  • 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)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP08156087A 2008-05-13 2008-05-13 Verfahren zur Bodenbearbeitung Withdrawn EP2119833A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08156087A EP2119833A1 (de) 2008-05-13 2008-05-13 Verfahren zur Bodenbearbeitung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08156087A EP2119833A1 (de) 2008-05-13 2008-05-13 Verfahren zur Bodenbearbeitung

Publications (1)

Publication Number Publication Date
EP2119833A1 true EP2119833A1 (de) 2009-11-18

Family

ID=39737600

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08156087A Withdrawn EP2119833A1 (de) 2008-05-13 2008-05-13 Verfahren zur Bodenbearbeitung

Country Status (1)

Country Link
EP (1) EP2119833A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112211191A (zh) * 2020-09-28 2021-01-12 河北交通职业技术学院 一种公路施工钢钎打入装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054285A (en) * 1958-09-26 1962-09-18 Goudsche Machf Nv Probing apparatus
GB1077097A (en) * 1965-07-30 1967-07-26 Baugrund Berlin Veb Ram-type probing apparatus or penetrometer for testing the hardness of soils
DE1634483A1 (de) * 1966-07-16 1970-05-06 Mueller Ludwig Rammanordnung,bestehend aus einem einzurammenden Koerper und einer Eintreibvorrichtung
DE1634649A1 (de) * 1965-06-12 1970-08-20 Baugrund Berlin Veb Rammsondiervorrichtung fuer Baugrunduntersuchungen
US5404757A (en) * 1990-03-20 1995-04-11 Etat Francais Represented By Laboratoire Central Des Ponts Et Chaussees Device for driving rods used primarily for soil mechanics tests into the ground
US5592993A (en) 1995-04-28 1997-01-14 Tti Trenchless Technologies, Inc. Directional auger attachment
EP0900884A1 (de) * 1997-09-02 1999-03-10 Rammsondierung Sigg Ag Rammgerät insbesondere zur Durchführung von Rammsondierungen
US6641332B1 (en) * 2002-07-10 2003-11-04 Appalachian Structural Systems, Inc. Foundation support and process for structures
NL1021599C2 (nl) 2002-06-24 2003-12-29 Ltf Liften B V Hefinrichting en werkwijze voor het transporteren van objecten.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054285A (en) * 1958-09-26 1962-09-18 Goudsche Machf Nv Probing apparatus
DE1634649A1 (de) * 1965-06-12 1970-08-20 Baugrund Berlin Veb Rammsondiervorrichtung fuer Baugrunduntersuchungen
GB1077097A (en) * 1965-07-30 1967-07-26 Baugrund Berlin Veb Ram-type probing apparatus or penetrometer for testing the hardness of soils
DE1634483A1 (de) * 1966-07-16 1970-05-06 Mueller Ludwig Rammanordnung,bestehend aus einem einzurammenden Koerper und einer Eintreibvorrichtung
US5404757A (en) * 1990-03-20 1995-04-11 Etat Francais Represented By Laboratoire Central Des Ponts Et Chaussees Device for driving rods used primarily for soil mechanics tests into the ground
US5592993A (en) 1995-04-28 1997-01-14 Tti Trenchless Technologies, Inc. Directional auger attachment
EP0900884A1 (de) * 1997-09-02 1999-03-10 Rammsondierung Sigg Ag Rammgerät insbesondere zur Durchführung von Rammsondierungen
NL1021599C2 (nl) 2002-06-24 2003-12-29 Ltf Liften B V Hefinrichting en werkwijze voor het transporteren van objecten.
US6641332B1 (en) * 2002-07-10 2003-11-04 Appalachian Structural Systems, Inc. Foundation support and process for structures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112211191A (zh) * 2020-09-28 2021-01-12 河北交通职业技术学院 一种公路施工钢钎打入装置

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