EP0083141B1 - Vorrichtung für Bodenuntersuchung - Google Patents

Vorrichtung für Bodenuntersuchung Download PDF

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Publication number
EP0083141B1
EP0083141B1 EP82201654A EP82201654A EP0083141B1 EP 0083141 B1 EP0083141 B1 EP 0083141B1 EP 82201654 A EP82201654 A EP 82201654A EP 82201654 A EP82201654 A EP 82201654A EP 0083141 B1 EP0083141 B1 EP 0083141B1
Authority
EP
European Patent Office
Prior art keywords
tube
ground
driven
driving
rod
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.)
Expired
Application number
EP82201654A
Other languages
English (en)
French (fr)
Other versions
EP0083141A2 (de
EP0083141A3 (en
Inventor
Arie Pieter Van Den Berg
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.)
CESSIONE;OSERCO B.V.
Original Assignee
INGENIEURSBUREAU A P VAN DEN BERG 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 INGENIEURSBUREAU A P VAN DEN BERG BV filed Critical INGENIEURSBUREAU A P VAN DEN BERG BV
Priority to AT82201654T priority Critical patent/ATE45778T1/de
Publication of EP0083141A2 publication Critical patent/EP0083141A2/de
Publication of EP0083141A3 publication Critical patent/EP0083141A3/en
Application granted granted Critical
Publication of EP0083141B1 publication Critical patent/EP0083141B1/de
Expired 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
    • E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes

Definitions

  • the invention relates to an apparatus as defined in the preamble of claim 1.
  • Such a device is not suitable for working at greater depths, since the friction between the flanged wheels is restricted. Although the friction can be increased by increasing the pressure between said wheels and the rod, this is restricted by the strength of the materials in question, in particular if hollow rods are to be used.
  • the invention provides an apparatus of this kind which is suitable for being used at larger depths, which is characterised by the features mentioned in the characterising portion of claim 1.
  • Such driving units having individual driving motors can be superposed along the rod to be driven, and the number thereof or the number of units in operation can be adapted to the required driving force. Said force is, then, distributed along said rod so that overstressing said rod is avoided.
  • the rod can be pressed into the ground in a continuous manner, and it is possible to arrange extension rods without interrupting the device.
  • Fig. 1 shows an embodiment of the apparatus of the invention for pressing a tube 1 into the soil, comprising a unit 31 forming the essential part thereof.
  • This apparatus is provided with means (not shown) allowing to superimpose a plurality of such units 31 along a tube 1.
  • Each unit 31 comprises a pair of wheels 32 and 33 with an outer rim of substantially semicircular cross-section, which wheels thus define a substantially circular cavity 34 in which a tube to be driven will fit.
  • the wheel rims can be roughened or can be provided with a friction covering in order to increase the grip on such a tube.
  • the wheel 33 is contained in a yoke 35 coupled to a pressure medium cylinder 36 by means of which this yoke can be pressed against the other wheel 32 so as to improve the grip on the interposed tube still more.
  • the shaft 37 of the wheel 32 is coupled to a driving motor 38 adapted to drive the wheel 32. If a larger driving force is desired, also the shaft 39 of the wheel 33 can be coupled to a motor 40. The driving force can be increased still further by increasing the number of units 31.
  • Increasing the number of units 31 has the advantage that, then, the driving force is distributed over a corresponding length of the tube 1, and slipping of the wheels 32 and 33, in particular under wet conditions, can be avoided.
  • Such a unit 31 can be used to drive a tube 1 directly, so as to obtain a substantially continuous drive. Coupling extension tube sections can take place during driving.
  • measuring the soil resistance force measuring apparatuses to be mounted on the lower end of tube 1 such as measuring cones or the like with electrical force transducers will preferably be used.
  • the measuring cord is to be stringed through all the tube sections to be used if the use of extension cords with contact plugs and sockets would lead to too high contact resistances.
  • Such measuring cords can, by their nature, be troublesome.
  • the invention provides a number of possibilities allowing to work without such measuring cords.
  • a central rod 20 can be used instead of a measuring cord, which rod needs not to be slidable, and can be provided, at an extremity, with a fitting 41 in which the extremity of the rod 20' of an adjoining tube section will fit more or less tightly so as to obtain an electrical connection, and the tube sections 1 themselves serve as a return conductor. It can, then, be advisable to arrange the current source 22 for the measuring circuit near the transducer 43 in the lower part of the tube 1, so as to ensure a sufficient voltage near the transducer 43 independent of the contact resistance in the couplings between the rods 20'.
  • the transducer 43 can be provided with a circuit which is adapted to transform the measurement results into suitable measurement signals, e.g. in digital form.
  • the transducer 43 can be connected to a radiation source 44, e.g. a laser diode, which can send directed radiation through the interior of the tube, and at the upper extremity of the tube 1 a radiation receiver, e.g. a photo-diode, will be arranged.
  • a radiation source 44 e.g. a laser diode
  • a radiation receiver e.g. a photo-diode
  • the tube 1 is, preferably, made as wide as is compatible with the strength of the tube, so as to maintain an unimpeded passage for the radiation even in the case of bending of the tube.
  • Fig. 2C shows still another solution in which the transducer 43 is coupled to a memory 45 in which the measurement results can be stored. After the tube is retracted again, the measurement results can be read out from said memory.
  • Timing signals should be recorded then at the same time so as to allow to relate the measurements to the insertion depth which is continuously recorded above ground, this also with the associated timing signals.
  • a memory can, for instance, be formed by a small tape recorder with micro-cassettes.
  • Such a tube 1 can also be constructed as a sample cutter for taking soil samples. It is usual to counteract disturbation of the soil samples by wall friction by enclosing the sample by a hose.
  • This hose is provided, in the known samplers, in an annular chamber surrounding the tube cavity into which the sample is inserted, and then the hose can enter the central bore at the lower end of this chamber through an annular slot, and the hose is closed there so that a penetrating sample pulls the hose along. Bending the hose around the edge of this slot, however, can lead to damage, and also soil particles can penetrate into this chamber. Therefore sometimes a so-called supporting liquid will be used which is supplied to the hose chamber and facilitates pulling the hose through the slot and, moreover, keeps soil particles out of this chamber. Furthermore this liquid acts as a lubricant for the hose.
  • such a cutting tube can be made in a simple manner as shown in Fig. 3, in which the hose chamber 46 is situated between the cutting mouth 47 at the extremity of the tube 1 and an exit slot 48 for the hose 49, so that the hose can be pulled substantially linearly from the chamber 46. Damaging the hose in the slot 48 is prevented then, and, moreover, penetration of soil particles is prevented. A supporting liquid can, then, be omitted, which considerably simplifies the construction of the over-all device.
  • the device In order to drive the tube 1 correctly vertically into the soil, the device should be directed vertically as well as possible.
  • the carrier for this device will be provided with means such as piston rods provided with foot plates which can be driven outwards by a pressure medium such as oil, and, by a separate pressure medium supply towards the different cylinders, the correct vertical orientation of said carrier and device can be obtained.
  • the invention provides means for considerably accelerating these operations and making them independent of human intervention and, thus, of errors.
  • a special sensor shown in Fig. 4 is preferably used.
  • This sensor comprises a substantially cylindrical housing 50 filled with oil, in which a float 51 of insulating material is provided which, by means of a spring 52, is kept in the centre when the housing 50 is directed vertically.
  • electrical contacts 53 are provided adapted to contact the float 51 as soon as the housing 50 has been removed somewhat from the vertical orientation.
  • the spring 52 is, with these electrical contacts, included in a control circuit by means of which, in correspondence with the orientation of the float, the pressure medium supply towards the different jacks can be regulated. A fast, automatic and accurate orientation of the device can be obtained thereby.
  • the device according to the invention can also be used for driving a drainage tape into the ground by means of a protecting tube which is finally retracted again, leaving a wedge-shaped driving end piece to which the tape is attached in the soil.
  • the device of Fig. 1 allowing a continuous driving force to be exerted is particularly suitable for sounding purposes, as an interrupted movement of a sounding tube may influence the measurement results.
  • the driving motors 38 and 40 can be hydraulic or electric motors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Chemical & Material Sciences (AREA)
  • Soil Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Tires In General (AREA)
  • Road Paving Structures (AREA)

Claims (6)

1. Vorrichtung zum Eintreiben eines Rohres oder einer Stange in die Erde für Bodenuntersuchungen, mit Mitteln zum festen Abstützen der Vorrichtung relativ zur Erde, Paaren von mit Flanschen versehenen Reibrädern (32, 33) zum Reibangriff an dem Rohr oder der Stange, wobei mindestens eines der Räder eines Paares von einem mit ihm verbundenen Antriebsmotor (38, 40) drehbar ist, und wobei Mittel (35, 36) zum einstellbaren Verklammern der Räder eines paares gegen das Rohr oder die Stange vorgesehen sind, gekennzeichnet durch eine Mehrzahl von in sich geschlossenen Einheiten (31), von denen jede ein Paar der mit Flanschen versehenen Räder (32, 33), zugehörige Verklammerungsmittel (35, 36) und mindestens einen Antriebsmotor (38, 40) zum Drehen des Rades (der Räder) umfaßt, wobei die Mehrzahl von Einheiten entlang eines Rohres oder einer Stange, das (die) in die Erde einzutreiben ist, übereinandersetzbar sind, und durch Versorgungs und Steuermittel zur Energieversorgung des Motors und der Verklammerungsmittel jeder Einheit.
2. Treibvorrichtung nach Anspruch 1 in Verbindung mit einer Mehrzahl von in die Erde einzutreibenden Rohrabschnitten, wobei die Rohrabschnitte mit einer Zentralstange versehen sind, dadurch gekennzeichnet, daß die Zentralstangen (20) mit Kupplungsmitteln (41) zur Herstellung einer elektrischen Verbindung zwischen den Zentralstangen aneinander anschließender Rohrabschnitte (1) versehen sind.
3. Treibvorrichtung nach Anspruch 1 in Verbindung mit einer Mehrzahl von die Erde einzutreibenden Rohrabschnitten, dadurch gekennzeichnet, daß in der Nähe des Wandlers (43) im unteren Abschnitt des Schallrohres (1) eine Strahlenquelle (44), insbesondere eine Laserdiode, vorgesehen ist und daß am oberen Ende des Rohres (1) ein auf die gesendete Strahlung ansprechendes Element, insbesondere eine Photo-Diode, angeordnet ist.
4. Treibvorrichtung nach Anspruch 1 in Verbindung mit einer Mehrzahl von in die Erde einzutreibenden Rohrabschnitten, dadurch gekennzeichnet, daß in der Nähe des Wandlers (43) im unteren Abschnitt des Rohres ein Speicherelement (45) montiert ist, wobei Mittel zum Aufzeichnen eines Zeitsignals vorgesehen sind, um die Meßwerte mit Eintreibtiefen ins Verhältnis zu setzen, die oberhalb der Erdoberfläche aufgenommen werden.
5. Vorrichtung nach einem der Ansprüche 2 bis 4 in Anpassung an ein Schallrohr mit elektrischen Meßelementen, dadurch gekenzeichnet, daß die Stromquelle (42) für die Meßelemente (43) am unteren Ende des Rohres (1) angeordnet ist.
6. Treibvorrichtung nach Anspruch 1 in Verbindung mit einer Mehrzahl von in die Erde einzutreibenden Rohrabschnitten, wobei das Rohr als Probenschneidrohr ausgebildet ist, welches nahe seinem unteren Ende mit einer Kammer versehen ist, die den Probenhohlraum umgibt, einen Schlauch aufnimmt und mit dem Probenhohlraum über einen Auslaßschlitz in Verbindung steht, dadurch gekennzeichnet, daß der probenhohlraurp (46) zwischen dem unteren Ende des Rohres (1) und dem Auslaßschlitz (48) liegt.
EP82201654A 1981-12-26 1982-12-23 Vorrichtung für Bodenuntersuchung Expired EP0083141B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82201654T ATE45778T1 (de) 1981-12-26 1982-12-23 Vorrichtung fuer bodenuntersuchung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8105859A NL8105859A (nl) 1981-12-26 1981-12-26 Inrichting voor bodemonderzoek.
NL8105859 1981-12-26

Publications (3)

Publication Number Publication Date
EP0083141A2 EP0083141A2 (de) 1983-07-06
EP0083141A3 EP0083141A3 (en) 1985-01-09
EP0083141B1 true EP0083141B1 (de) 1989-08-23

Family

ID=19838618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201654A Expired EP0083141B1 (de) 1981-12-26 1982-12-23 Vorrichtung für Bodenuntersuchung

Country Status (10)

Country Link
EP (1) EP0083141B1 (de)
JP (1) JPS58135935A (de)
AT (1) ATE45778T1 (de)
CA (1) CA1200118A (de)
DE (1) DE3279902D1 (de)
FI (1) FI824391L (de)
HK (1) HK87792A (de)
IN (1) IN161018B (de)
NL (1) NL8105859A (de)
NO (1) NO161229C (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243173B (en) * 1990-03-27 1994-06-29 Seafloors Eng Inc Self-contained apparatus and method for determining the static and dynamic loading characteristics of a soil bed
US5127261A (en) * 1990-03-27 1992-07-07 Fugro-Mcclelland Leasing, Inc. Self-contained apparatus and method for determining the static and dynamic loading characteristics of a soil bed
CN101813576B (zh) * 2010-05-04 2011-12-28 张龙云 间歇式取土器
CN113358402B (zh) * 2021-06-04 2022-08-19 中国煤炭地质总局第一勘探局科教中心 一种用于工程地质勘探便于展开的土壤取样管
CN115615741B (zh) * 2022-12-01 2023-03-10 江苏龙环环境科技有限公司 用于环保检测的可调式土壤取样装置及其使用方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774240A (en) * 1951-04-09 1956-12-18 Fur Grundwasserbauten Ag Soil testing apparatus
NO116195B (de) * 1965-02-19 1969-02-10 Sven Melker Nilsson
US3379052A (en) * 1965-09-20 1968-04-23 Earle A. Howard Soil penetrometer
GB1176595A (en) * 1968-09-16 1970-01-07 Shell Int Research Method and means for determining soil resistance of subsurface layers.
US3960448A (en) * 1975-06-09 1976-06-01 Trw Inc. Holographic instrument for measuring stress in a borehole wall
DE2545692B2 (de) * 1975-10-11 1978-03-16 Dornier System Gmbh, 7990 Friedrichshafen Einrichtung zur Übertragung von Meßdaten aus einem Bohrloch, insbesondere Tiefbohrloch
US4033186A (en) * 1976-08-06 1977-07-05 Don Bresie Method and apparatus for down hole pressure and temperature measurement

Also Published As

Publication number Publication date
NO824323L (no) 1983-06-28
EP0083141A2 (de) 1983-07-06
NO161229B (no) 1989-04-10
ATE45778T1 (de) 1989-09-15
DE3279902D1 (en) 1989-09-28
EP0083141A3 (en) 1985-01-09
IN161018B (de) 1987-09-12
NO161229C (no) 1989-07-19
CA1200118A (en) 1986-02-04
FI824391A0 (fi) 1982-12-21
JPS58135935A (ja) 1983-08-12
NL8105859A (nl) 1983-07-18
HK87792A (en) 1992-11-20
FI824391L (fi) 1983-06-27

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