NL2019554B1 - Horizontal probing method for probing suspect soil, i.e. soil possibly containing suspect objects - Google Patents

Horizontal probing method for probing suspect soil, i.e. soil possibly containing suspect objects Download PDF

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Publication number
NL2019554B1
NL2019554B1 NL2019554A NL2019554A NL2019554B1 NL 2019554 B1 NL2019554 B1 NL 2019554B1 NL 2019554 A NL2019554 A NL 2019554A NL 2019554 A NL2019554 A NL 2019554A NL 2019554 B1 NL2019554 B1 NL 2019554B1
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NL
Netherlands
Prior art keywords
probing
rod
probing rod
suspect
soil
Prior art date
Application number
NL2019554A
Other languages
Dutch (nl)
Inventor
Johan Los Mathijs
Marinus Van Den Heuvel Hendrikus
Original Assignee
Heijmans N V
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Publication date
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Priority to NL2019554A priority Critical patent/NL2019554B1/en
Application granted granted Critical
Publication of NL2019554B1 publication Critical patent/NL2019554B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/12—Means for clearing land minefields; Systems specially adapted for detection of landmines
    • F41H11/16—Self-propelled mine-clearing vehicles; Mine-clearing devices attachable to vehicles
    • F41H11/20—Self-propelled mine-clearing vehicles; Mine-clearing devices attachable to vehicles with ground-penetrating elements, e.g. with means for removing buried landmines from the soil
    • F41H11/26—Self-propelled mine-clearing vehicles; Mine-clearing devices attachable to vehicles with ground-penetrating elements, e.g. with means for removing buried landmines from the soil the elements being rotary ground-penetrating elements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/0236—Determining slope or direction of the borehole, e.g. using geomagnetism using a pendulum
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
    • E21B47/092—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting magnetic anomalies
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/046—Directional drilling horizontal drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/205—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Soil Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

The invention relates to a horizontal probing method for probing suspect soil (1), Le. soil possibly containing suspect objects (2), comprising the steps of: - identifying a suspect soil portion (3) where suspect objects, such as conventional explosives (4), could be present, such as a suspect soil portion below a railway track (5), - providing an insertion area (6) and a reception area (7) on horizontally opposite sides (8) of the suspect soil portion, - using a pushing device (9) to horizontally push a probing rod (10) into the suspect soil portion from the insertion area towards the reception area, wherein a displacement head (11) is provided at the front of the probing rod, such that during pushing soil is displaced in a direction perpendicular to a length direction (X) of the probing rod by the displacement head, and - detecting suspect objects by detection means (12) comprised by the probing rod while the probing rod is pushed further towards the reception area.

Description

Description
FIELD OF THE INVENTION
The present invention relates to a horizontal probing method for probing suspect soil, i.e. soil possibly containing suspect objects, as well as a probing rod for use with such a method and a probing system comprising such a probing rod.
BACKGROUND OF THE INVENTION
Sometimes it is necessary to carry out infrastructural projects in areas with soil possibly containing suspect objects, such as explosives. However, before work commences, sufficient clearance must be obtained in order to guarantee the safety of the personnel (and equipment) operating in such an area, to guarantee the safety of travellers or passers-by, and/or to prevent damage to surrounding buildings, et cetera.
Usually, surface detection and depth detection techniques are used for detecting such suspect objects. However, the use of such techniques is next to useless when the respective area comprises an (infrastructural) object or structure covering the soil to be investigated, for example a railroad track, a road or a shipping channel.
However, during the Second World War, such railroad tracks, roads or shipping lanes used to be important targets for bombing raids. Therefore, there is a particularly high risk associated with carrying out infrastructural activities in those areas. Furthermore, due to the importance of railroad tracks, roads or shipping channels to daily life, it is often not possible to (temporarily) remove such an object or structure from the area. Therefore, the contractor carrying out the infrastructural project often opts for starting the infrastructural activities, such as drilling or digging, without obtaining the proper clearance, thereby violating the law.
From public prior use drilling and/or probing devices are known provided with a detection probe to detect suspect objects before the drilling head drills close to or into the suspect object, in particular to prevent risking detonation in case of a conventional explosive (CE).
A problem with the known drilling devices and/or probing methods is, however, that in practice none of the available (vertical or horizontal) drilling or probing devices are suitable for probing directly underneath the respective object or structure.
The known vertical probing devices provided with a detection probe, as well as the associated vertical probing methods, are rather expensive to employ and are hard or virtually impossible to use directly underneath an infrastructural object or structure due to their vertical drilling direction.
A problem with the known horizontal probing devices and methods is that due to the nature of the probing method employed - the probing device has to be positioned at ground level, at a substantial horizontal distance from the infrastructural object or structure - the probing depth is often too great, leading to the probing head probing too deep underneath the infrastructural object or structure, as a result of which the soil portion directly below the infrastructural object or structure, i.e. the soil portion of actual interest, is not investigated.
A further problem with the known horizontal probing devices is that, when pushing/drilling the probing device through the suspect soil, with some prior art methods, the probing head needs to be pulled back, i.e. after pushing/drilling, to perform the detection, increasing the risk of accidentally touching a suspect object and providing for a time-consuming and cumbersome detection operation.
OBJECT OF THE INVENTION
An object of the invention is therefore to provide a probing method for probing in suspect soil (i.e. soil possibly containing suspect objects) located directly underneath an object or structure covering the soil portion to be investigated.
A further object of the invention is to provide a probing method, wherein detection can take place without the probing device having to be pulled back through the suspect soil to perform the actual detection, in order to decrease the risk of accidentally touching a suspect object and to provide for a less time-consuming and cumbersome detection operation.
DESCRIPTION OF THE INVENTION
Hereto, according to the invention, a horizontal probing method for probing suspect soil, i.e. soil possibly containing suspect objects, is provided, comprising the steps of:
identifying a suspect soil portion where suspect objects, such as conventional explosives, could be present, such as a suspect soil portion below a railway track, providing an insertion area and a reception area on horizontally opposite sides of the suspect soil portion, using a pushing device to horizontally push a probing rod into the suspect soil portion from the insertion area towards the reception area, wherein a displacement head is provided at the front of the probing rod, such that during pushing soil is displaced in a direction perpendicular to a length direction of the probing rod by the displacement head, and detecting suspect objects by detection means comprised by the probing rod while the probing rod is pushed further towards the reception area.
The above probing method allows probing in suspect soil (i.e. soil possibly containing suspect objects) located directly underneath an object or structure covering the soil portion to be investigated. Due to the displacement head and the probing head in general being designed to displace soil sideways, without excavating or removing the soil, it is possible to work in relatively tight spaces underneath objects or structures. Furthermore, due to the detection being allowed to take place (immediately) while the probing device is pushed further by the pushing device through the suspect soil, the risk of accidentally touching a suspect object decreases. Detection is preferably performed in radial direction as well as the forward, longitudinal direction.
It should be understood that after probing, drilling can of course take place as a next step.
In the context of this patent application, ‘horizontal’ means ‘substantially horizontal’. The inventor, for example, also regards a probing angle of 10° with respect to the local earth surface as ‘horizontal’.
An embodiment relates to an aforementioned method, wherein the detection means are arranged behind the displacement head. Preferably even, the detection means are arranged directly behind the displacement head to get an as accurate as possible reading/detection.
An embodiment relates to an aforementioned method, wherein the probing rod has a front probing rod member comprising the displacement head and the detection means, wherein one or more rear probing rod members are connected to the rear of the front probing rod member to increase the length of the probing rod when the probing rod progresses through the suspect soil portion towards the reception area. Thus, it is possible to probe over considerable distances, although positional accuracy could decrease with very high probing rod lengths.
An embodiment relates to an aforementioned method, wherein an auger boring machine is used as pushing device to push the probing rod through the soil portion. The inventor has found that the pushing action can advantageously be carried out with a commonly available auger boring machine, but then without the auger actually being installed. The auger boring machine is then used to perform the pushing and/or rotary actions on the probing rod, without actual drilling taking place because of the omission of the auger.
An embodiment relates to an aforementioned method, wherein probing takes place at a depth (D) of 0 - 6 m, such as 0 - 5 m, below ground level (G). The inventor has found that from a practical standpoint probing at greater depths will bring additional complexity to the probing operation, although in principle the method can be carried out at depths of over 6 m, such as at a depth of 6 - 50 m, for instance a depth of 10 - 30 m.
An embodiment relates to an aforementioned method, wherein, when probing takes place below ground level, the method comprises the further steps of:
digging a launch pit and a reception pit on two opposite sides of the suspect soil portion, wherein the launch pit comprises the insertion area and the reception pit comprises the reception area. The inventor has found from practice that such a configuration is perfectly suitable to provide horizontal probings.
An embodiment relates to an aforementioned method, wherein probing starts at a distance of 4 - 6 m from the pushing device. The inventor has surprisingly found that, advantageously, with the present invention probing can already start at such a relatively short distance from the pushing device, allowing the method to be used in tight spaces.
An embodiment relates to an aforementioned method, wherein the depth is at most 4 m, preferably at most 3 m, more preferably at most 2 m, such as at most 1,5 m or 1 m below ground level.
An embodiment relates to an aforementioned method, wherein the suspect soil portion lies below an object or structure, such as an infrastructural object, in particular a railway track. The inventor has found that the probing method is particularly suitable for probing below such an infrastructural object, in particular in view of the available prior art methods and devices.
An embodiment relates to an aforementioned method, wherein probing starts at a distance of 4 - 5 m, preferably about 4 m from the pushing device. In practice, the probing method according to the invention allows probing at a minimum distance of 4 -5m from the pushing device, i.e. the pushing device can be positioned relatively close to the suspect soil portion.
An embodiment relates to an aforementioned method, wherein the probing rod comprises a guidance system to guide the probing rod during pushing to improve probing and detection accuracy.
An embodiment relates to an aforementioned method, wherein the guidance system comprises one or more sensors for sensing the position and/or orientation of the displacement head.
An embodiment relates to an aforementioned method, wherein the one or more sensors comprise a gyroscope, such as a chip-gyroscope, to sense the orientation/angle of the probing rod ora respective probing rod member. Of course, it is conceivable to install multiple sensors, such as gyroscopes, at multiple locations along the length of the probing rod, for instance one sensor or gyroscope per probing rod member.
Another aspect of the invention relates to a probing rod for use with the aforementioned horizontal probing method, comprising a displacement head provided at the front of the probing rod, as well as detection means for detecting suspect objects.
An embodiment relates to an aforementioned probing rod, wherein the detection means are arranged behind the displacement head.
An embodiment relates to an aforementioned probing rod, comprising a guidance system to guide the probing rod during pushing.
An embodiment relates to an aforementioned probing rod, wherein the guidance system comprises one or more sensors for sensing the position and/or orientation of the displacement head.
An embodiment relates to an aforementioned probing rod, wherein the one or more sensors comprise a gyroscope, such as a chip-gyroscope.
An embodiment relates to an aforementioned probing rod, wherein the displacement head is shaped like a truncated cylinder. Thus, the soil can be displaced with minimal effort and with good control over the soil displacement action.
An embodiment relates to an aforementioned probing rod, having a front probing rod member comprising the displacement head and the detection means, wherein one or more rear probing rod members are connected to the rear of the front probing member to increase the length of the probing rod when the probing rod progresses through the suspect soil portion towards the reception area.
An embodiment relates to an aforementioned probing rod, wherein the detection means comprise a magnetometer to detect suspect objects comprising metal, such as a metal casing in the case of a conventional explosive.
An embodiment relates to an aforementioned probing rod, wherein the probing rod comprises a cylindrical wall and the detection means are enclosed by the cylindrical wall providing for detection in a direction perpendicular to the length direction of the probing rod and/or parallel to the length direction of the probing rod, in particular the forward direction of the probing rod. In practice, detection ranges in radial direction of at least 1,5 m, such as around 2 m, are thus possible, depending on the size and material of the suspect object to be detected. Similar detection ranges apply to the forward, longitudinal detection direction. Radial detection can take place along the full length of the cylindrical wall/front probing rod member, such that relatively large portions of soil can be radially and longitudinally scanned/detected.
An embodiment relates to an aforementioned probing rod, wherein the one or more sensors are spaced at a distance from the detection means, i.e. in length direction of the probing rod, such as at a distance of at least 1 m, preferably at a distance of at least 2 m. The inventor has found that the detection means and sensors can interfere with each other and therefore the detection means and sensors are to be spaced at a distance from each other to keep the readings from both the detection means as well as the sensors accurate.
An embodiment relates to an aforementioned probing rod, wherein the one or more sensors are comprised by the one or more rear probing rod members, preferably by the rear ends of the one or more rear probing rod members. Thus, the orientation/angle of each individual probing rod member can be determined to get accurate information on the orientation and overall position of the probing rod as a whole.
Another aspect of the invention relates to a probing system, comprising an aforementioned probing rod, and a pushing device to horizontally push the probing rod into the suspect soil portion from the insertion area towards the reception area.
An embodiment relates to an aforementioned probing system, wherein the pushing device is an auger boring machine.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be explained hereafter with reference to exemplary embodiments of the method, probing rod and probing system according to the invention and with reference to the drawings. Therein:
Figure 1 shows an exemplary embodiment of the method, probing rod and probing system according to the invention; and
Figure 2 shows an exemplary embodiment of a probing rod according to the invention.
DETAILED DESCRIPTION
Figures 1 and 2 will be discussed in conjunction. Figure 1 highly schematically shows an exemplary embodiment of a probing system 25, comprising a probing rod 10 and a pushing device 9 to horizontally push the probing rod 10 into a suspect soil portion 1, 3 from an insertion area 6 towards a reception area 7. The pushing device 9 can be an auger boring machine 15 or any other device capable of pushing and/or rotating the probing rod 10. The probing rod 10 comprises a displacement head 11, having the shape of a truncated cylinder, provided at the front of the probing rod 10. The truncation plane 27 may have an angle of for instance 30 - 60°, such as 40 - 50°, preferably about 45° with respect to the length direction X. The probing rod 10 also comprises detection means 12 for detecting suspect objects, such as a magnetometer 22, in radial as well as forward directions. The detection means 12 are arranged (preferably directly) behind the displacement head 11. The probing rod 10 preferably comprises a guidance system 19 to guide the probing rod 10 during pushing and/or rotation thereof. The guidance system 19 thereto may comprise one or more sensors for sensing the position and/or orientation of the displacement head 11. The one or more sensors 20 may comprise a gyroscope 21, such as a chip-gyroscope.
Preferably, the probing rod 10 comprises a preferably tubular front probing rod member 13 comprising the displacement head 11 and the detection means 12. One or more preferably tubular rear probing rod members 14 are connected to the rear end 26 of the front probing member 13, for instance via corresponding screw threads, to increase the length of the probing rod 10 when the probing rod 10 progresses through the suspect soil portion 3 towards the reception area 7.
As shown in figure 2, the probing rod 10 may comprise a cylindrical wall 23 and the detection means 12 can be enclosed by the cylindrical wall 23 providing for detection in a direction perpendicular to the length direction X of the probing rod 10, as well as the forward direction of the probing rod 10.
The one or more sensors 20 are preferably spaced at a distance SD from the detection means 12, i.e. in length direction X of the probing rod 10, preferably at a distance of at least 1 m, such as 2 m. The one or more sensors 20 are preferably comprised by the one or more rear probing rod members 14, preferably by the rear ends 24 of the one or more rear probing rod members 14. The probing rod 10, as well as the front and rear probing rod members 13, 14 preferably have an outer diameter of 10 - 20 cm, such as around 15 cm.
The horizontal probing method according to an exemplary embodiment of the invention for probing suspect soil 1, i.e. soil possibly containing suspect objects 2, comprises the steps of:
identifying the suspect soil portion 3 where the suspect objects 2, such as conventional explosives 4, could be present, such as a suspect soil portion 3 below a railway track 5, providing an insertion area 6 and a reception area 7 on horizontally opposite sides 8 of the suspect soil portion 3, using a pushing device 9 to horizontally push a probing rod 10 into the suspect soil portion 3 from the insertion area 6 towards the reception area 7, wherein the displacement head 11 is provided at the front of the probing rod 10, such that during pushing soil is displaced in a direction perpendicular to the length direction X of the probing rod 10 by the displacement head 11, and detecting suspect objects 2, in particular around a forward portion of the probing rod 10, more in particular around the front probing rod member 13, by detection means comprised by the probing rod 10 while the probing rod 10 is pushed further towards the reception area 7.
The suspect soil portion 3 can be found by carrying out historical research or alternatively via preliminary research carried out via for instance global imaging or detection methods.
The probing preferably takes place at a depth D of 0 - 6 m, such as 0 - 5 m, below ground level G, although greater depths are certainly conceivable.
When probing takes place below ground level G, the method preferably comprises the further steps of:
digging a launch pit 16 and a reception pit 17 on two opposite sides 8 of the suspect soil portion 3, wherein the launch pit 16 comprises the insertion area 6 and the reception pit 17 comprises the reception area 7.
Probing preferably starts at a distance of 4 - 6 m from the pushing device 15. The depth D preferably is at most 4 m, preferably at most 3 m, more preferably at most 2 m, such as at most 1,5 m or 1 m below ground level G.
The suspect soil portion 3 could very well lie below an object or structure 18, such as an infrastructural object, for example a building, a bridge, a shipping lane, a road or a railway track 5. The method according to the invention is particularly useful for use in such situations.
Probing starts at a distance of 4 - 5 m, preferably about 4 m, from the pushing device. The probing distance PD could range from 1 m to 100 m to even larger probing distances, based on the positional accuracy that can be provided and the pushing resistance that can be overcome.
It should be clear that the description above is intended to illustrate the operation of preferred embodiments of the invention, and not to reduce the scope of protection of the invention. Starting from the above description, many embodiments will be conceivable to the skilled person within the inventive concept and scope of protection of the present invention.
LIST OF REFERENCE NUMERALS
1. Suspect soil
2. Suspect object
3. Suspect soil portion
4. Conventional explosive
5. Railway track
6. Insertion area
7. Reception area
8. Opposite side
9. Pushing device
10. Probing rod
11. Displacement head
12. Detection means
13. Front probing rod member
14. Rear probing rod member
15. Auger boring machine
16. Launch pit
17. Reception pit
18. Object or structure
19. Guidance system
20. Sensor
21. Gyroscope
22. Magnetometer
23. Cylindrical wall
24. Rear end of rear probing rod member
25. Probing system
26. Rear end of the front probing member
27. Truncation plane

Claims (26)

CONCLUSIESCONCLUSIONS 1. Horizontale sondeerwerkwijze voor het sonderen van verdachte grond (1), i.e. grond die mogelijk verdachte objecten (2) bevat, omvattend de stappen van:A horizontal probing method for probing suspect soil (1), i.e. soil containing potentially suspicious objects (2), comprising the steps of: het identificeren van een verdacht grondgedeelte (3) waar verdachte objecten, zoals conventionele explosieven (4), aanwezig zouden kunnen zijn, zoals een verdacht grondgedeelte onder een spoorlijn (5), het verschaffen van een inbrenggebied (6) en een ontvangstgebied (7) aan horizontaal tegenoverliggende zijden (8) van het verdachte grondgedeelte, het gebruik van een duwinrichting (9) om een sondeerstang (10) horizontaal in het verdachte grondgedeelte te duwen, van het inbrenggebied naar het ontvangstgebied, waarbij een verplaatsingskop (11) is verschaft aan de voorzijde van de sondeerstang, zodat tijdens het duwen door de verplaatsingskop grond wordt verplaatst in een richting loodrecht op een lengterichting (X) van de sondeerstang, en het detecteren van verdachte objecten door detectiemiddelen (12) omvat door de sondeerstang terwijl de sondeerstang verder naar het ontvangstgebied wordt geduwd.identifying a suspected ground section (3) where suspicious objects, such as conventional explosives (4), could be present, such as a suspected ground section under a railway (5), providing an insertion area (6) and a receiving area (7) on horizontally opposite sides (8) of the suspected ground section, using a pusher (9) to push a probing rod (10) horizontally into the suspected ground section, from the insertion area to the receiving area, a displacement head (11) being provided to the front of the probing rod, so that while pushing through the displacement head, soil is moved in a direction perpendicular to a longitudinal direction (X) of the probing rod, and detecting suspicious objects by detection means (12) comprised by the probing rod while the probing rod continues to the reception area is pushed. 2. Werkwijze volgens conclusie 1, waarbij de detectiemiddelen achter de verplaatsingskop zijn aangebracht.A method according to claim 1, wherein the detection means are arranged behind the displacement head. 3. Werkwijze volgens conclusie 1 of 2, waarbij de sondeerstang een voorsondeerstanglichaam (13) heeft, dat de verplaatsingskop en de detectiemiddelen omvat, waarbij een of meer achter-sondeerstanglichamen (14) zijn verbonden met de achterzijde van het voor-sondeerstanglichaam om de lengte van de sondeerstang te vergroten wanneer de sondeerstang zich door het verdachte grondgedeelte naar het ontvangstgebied voortbeweegt.A method according to claim 1 or 2, wherein the probing rod has a pre-probing rod body (13) comprising the displacement head and the detection means, one or more rear probing rod bodies (14) being connected to the rear of the pre-probing rod body about the length of the probing rod when the probing rod moves through the suspected ground portion to the receiving area. 4. Werkwijze volgens een van de voorgaande conclusies, waarbij een avegaarboormachine wordt gebruikt als duwinrichting (15) om de sondeerstang door het grondgedeelte te duwen.The method of any of the preceding claims, wherein an auger drilling machine is used as a pushing device (15) to push the sounding rod through the ground portion. 5. Werkwijze volgens een van de voorgaande conclusies, waarbij sonderen plaatsvindt op een diepte (D) van 0 - 6 m, zoals 0 - 5 m, onder het maaiveld (G).A method according to any preceding claim, wherein probing takes place at a depth (D) of 0-6m, such as 0-5m, below ground level (G). 6. Werkwijze volgens een van de voorgaande conclusies, waarbij, wanneer sonderen onder het maaiveld plaatsvindt, de werkwijze verder de stappen omvat van:The method of any of the preceding claims, wherein, when probing takes place below ground level, the method further comprises the steps of: het graven van een persput (16) en een ontvangstput (17) aan twee tegenoverliggende zijden van het verdachte grondgedeelte, waarbij de persput het inbrenggebied omvat en de ontvangstput het ontvangstgebied omvat.digging a well (16) and a receiving well (17) on two opposite sides of the suspected ground portion, the well comprising the insertion area and the receiving well including the receiving area. 7. Werkwijze volgens een van de voorgaande conclusies, waarbij sonderen start op een afstand van 4 - 6 m vanaf de duwinrichting.A method according to any one of the preceding claims, wherein probing starts at a distance of 4-6 m from the pusher. 8. Werkwijze volgens conclusie 5, waarbij de diepte ten hoogste 4 m, bij voorkeur ten hoogste 3 m, bij grotere voorkeur ten hoogste 2 m, zoals ten hoogste 1,5 m of 1 m, onder het maaiveld bedraagt.A method according to claim 5, wherein the depth is at most 4 m, preferably at most 3 m, more preferably at most 2 m, such as at most 1.5 m or 1 m, below ground level. 9. Werkwijze volgens conclusie 1 of 2, waarbij het verdachte grondgedeelte onder een object of een constructie (18) ligt, zoals een infrastructureel object, in het bijzonder een spoorlijn.A method according to claim 1 or 2, wherein the suspected ground section lies under an object or a construction (18), such as an infrastructure object, in particular a railway line. 10. Werkwijze volgens conclusie 7, waarbij sonderen start op een afstand van 4 - 5 m, bij voorkeur ongeveer 4 m vanaf de duwinrichting.The method of claim 7, wherein probing starts at a distance of 4 - 5 m, preferably about 4 m from the pusher. 11. Werkwijze volgens een van de voorgaande conclusies, waarbij de sondeerstang een geleidingssysteem (19) omvat voor het geleiden van de sondeerstang tijdens het duwen.The method of any preceding claim, wherein the probing rod includes a guide system (19) for guiding the probing rod during pushing. 12. Werkwijze volgens conclusie 11, waarbij het geleidingssysteem een of meer sensoren (20) omvat voor het bepalen van de positie en/of oriëntatie van de verplaatsingskop.The method of claim 11, wherein the guidance system includes one or more sensors (20) for determining the position and / or orientation of the displacement head. 13. Werkwijze volgens conclusie 12, waarbij de een of meer sensoren een gyroscoop (21) omvatten, zoals een chip-gyroscoop.The method of claim 12, wherein the one or more sensors comprise a gyroscope (21), such as a chip gyroscope. 14. Sondeerstang (10) voor gebruik met de horizontale sondeermethode volgens een van de voorgaande conclusies, omvattend een verplaatsingskop (11) verschaft aan de voorzijde van de sondeerstang, alsmede detectiemiddelen (12) voor het detecteren van verdachte objecten.CPT rod (10) for use with the horizontal CPT method according to any of the preceding claims, comprising a displacement head (11) provided on the front of the CPT rod, and detection means (12) for detecting suspicious objects. 15. Sondeerstang volgens conclusie 14, waarbij de detectiemiddelen achter de verplaatsingskop zijn aangebracht.Sounding rod according to claim 14, wherein the detection means are arranged behind the displacement head. 16. Sondeerstang volgens conclusie 15, omvattend een geleidingssysteem (19) voor het geleiden van de sondeerstang tijdens het duwen.Probing rod according to claim 15, comprising a guiding system (19) for guiding the probing rod during pushing. 17. Sondeerstang volgens conclusie 16, waarbij het geleidingssysteem een of meer sensoren (20) omvat voor het bepalen van de positie en/of oriëntatie van de verplaatsingskop.Sounding rod as claimed in claim 16, wherein the guiding system comprises one or more sensors (20) for determining the position and / or orientation of the displacement head. 18. Sondeerstang volgens conclusie 17, waarbij de een of meer sensoren een gyroscoop (21) omvatten, zoals een chip-gyroscoop.The sounding rod of claim 17, wherein the one or more sensors comprise a gyroscope (21), such as a chip gyroscope. 19. Sondeerstang volgens een van de conclusies 14-18, waarbij de verplaatsingskop (11) is gevormd als een afgeknotte cilinder.Sounding rod according to any one of claims 14-18, wherein the displacement head (11) is formed as a truncated cylinder. 20. Sondeerstang volgens een van de conclusies 14-19, met een voorsondeerstanglichaam (13), dat de verplaatsingskop en de detectiemiddelen omvat, waarbij een of meer achter-sondeerstanglichamen (14) zijn verbonden met de achterzijde (26) van het voor-sondeerstanglichaam om de lengte van de sondeerstang te vergroten wanneer de sondeerstang zich door het verdachte grondgedeelte naar het ontvangstgebied voortbeweegt.Probing rod according to any one of claims 14-19, with a pre-probing rod body (13), comprising the displacement head and the detection means, one or more rear probing rod bodies (14) being connected to the rear (26) of the pre-probing rod body to increase the length of the probing rod when the probing rod advances through the suspected ground portion to the receiving area. 21. Sondeerstang volgens conclusie 20, waarbij de detectiemiddelen een magnetometer (22) omvatten.Sounding rod according to claim 20, wherein the detection means comprise a magnetometer (22). 22. Sondeerstang volgens een van de conclusies 14-21, waarbij de sondeerstang een cilindrische wand (23) omvat en de detectiemiddelen zijn omsloten door de cilindrische wand, waarbij detectie in een richting loodrecht op de lengterichting van de sondeerstang en/of parallel aan de lengterichting van de sondeerstang wordt verschaft, in het bijzonder in de voorwaartse richting van de sondeerstang.Probing rod according to any one of claims 14-21, wherein the probing rod comprises a cylindrical wall (23) and the detection means are enclosed by the cylindrical wall, detection in a direction perpendicular to the longitudinal direction of the probing rod and / or parallel to the longitudinal direction of the probing rod is provided, especially in the forward direction of the probing rod. 23. Sondeerstang volgens conclusie 17, waarbij de een of meer sensoren op een afstand (SD) van de detectiemiddelen zijn geplaatst, i.e. in de lengterichting (X) van de sondeerstang, zoals op een afstand van ten minste 1 m, bij voorkeur op een afstand van ten minste 2 m.Probing rod according to claim 17, wherein the one or more sensors are placed at a distance (SD) from the detection means, ie in the longitudinal direction (X) of the probing rod, such as at a distance of at least 1 m, preferably at a distance of at least 2 m. 24. Sondeerstang volgens de conclusies 20 en 23, waarbij de een of meer sensoren zijn omvat door de een of meer achter-sondeerstanglichamen, bij voorkeur door de achtereinden (24) van de een of meer achter-sondeerstanglichamen.Probing rod according to claims 20 and 23, wherein the one or more sensors are comprised by the one or more rear probing rod bodies, preferably by the rear ends (24) of the one or more rear probing rod bodies. 25. Sondeersysteem (25), omvattend een sondeerstang volgens een van de conclusies 14-24, en een duwinrichting (9) om de sondeerstang horizontaal in het verdachte grondgedeelte te duwen, van het inbrenggebied naar het ontvangstgebied.CPT system (25), comprising a CPT bar according to any one of claims 14-24, and a pusher (9) for pushing the CPT bar horizontally into the suspected ground portion, from the insertion area to the receiving area. 26. Sondeersysteem volgens conclusie 25, waarbij de duwinrichting een avegaarboormachine (15) is.The CPT system according to claim 25, wherein the pusher is an auger drilling machine (15). NJNJ 4½.4½.
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US20060185899A1 (en) * 1999-09-24 2006-08-24 Vermeer Manufacturing Company Underground drilling device employing down-hole radar
DE102009041627A1 (en) * 2009-09-17 2011-03-24 Tief- und Rohrleitungsbau Wilhelm Wähler GmbH Method for probing warfare agent into earth, at e.g. highways, involves measuring geophysical parameter of space around drill head and/or drilling rod during drilling operation, and transmitting measuring results to control unit
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403664A (en) * 1980-08-28 1983-09-13 Richard Sullinger Earth boring machine and method
US20060185899A1 (en) * 1999-09-24 2006-08-24 Vermeer Manufacturing Company Underground drilling device employing down-hole radar
WO2003080988A2 (en) * 2002-03-27 2003-10-02 Tracto- Technik Gmbh Drill head and method for controlled horizontal drilling
DE102009041627A1 (en) * 2009-09-17 2011-03-24 Tief- und Rohrleitungsbau Wilhelm Wähler GmbH Method for probing warfare agent into earth, at e.g. highways, involves measuring geophysical parameter of space around drill head and/or drilling rod during drilling operation, and transmitting measuring results to control unit
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