NL2015621B1

NL2015621B1 - Easy guided pilot tube.

Info

Publication number: NL2015621B1
Application number: NL2015621A
Authority: NL
Inventors: Achterhuis Ernest-Jan
Original assignee: Fodere B V
Priority date: 2015-10-15
Filing date: 2015-10-15
Publication date: 2017-05-09
Also published as: WO2017065606A1

Abstract

The present invention is in the field of guided pressing small and medium sized tubes over distances of a few meters up to 500 meters, an assembly comprising a pressing segment and an outer guiding tube, said pressing segment, and said outer guiding tube. The present invention is suited for heavy traffic constructions.

Description

Title Easy guided pilot tube

FIELD OF THE INVENTION

BACKGROUND OF THE INVENTION

In general prior art construction of tubes involves drilling of a tube-element. The drill-head typically removes soil, and transport soil back through a drill tube to an entrance cavity or the like, such as by a means for removing excavated soil from the drilling segment, such as a helical chain, a press, a screw-pump, a conveyer, and the like. The excavated soil needs to be removed to another location.

When finished with drilling a drill may be removed. However at an exit of the tube-element a receiving hole has to be dug, typically a few meters deep and a few meters wide, in order to remove the drill head and to have access to the exit. In non-populated areas such might not be much of an issue. However in populated areas not alone extra security measures have to be taken, but more important if close to a transport zone, such as a way, a railway, or the like, traffic has to be stopped. In addition such removal can only take place during tranquil periods, such as during the night; such is costly and in fact more risky as well.

Before removing the drill a tube or the like may be provided into a drill tube or the like. Thereafter the drill tube is removed. Hence drilling and providing a tube includes the steps of providing a drill tube, drilling, removing the drill, entering a tube into the drill tube, and removing the drill tube. In addition the drill head needs to be removed as well from the above receiving hole.

It is also relatively difficult to provide tubes that are suited for a given purpose, such as being water-tight and soil tight. In addition further requirements may be present, such as when used underneath roads or buildings.

Hence there is a need for an improved and more effi cient system and method of providing tubes in a soil, which overcomes at least some of the drawbacks of the prior art, without jeopardizing functionality and potential advantages thereof .

SUMMARY OF THE INVENTION

The present invention relates in a first aspect to an assembly according to claim 1, a hollow conduct according to claim 20, an auger press segment according to claim 21, and a method according to claim 26.

The present assembly provides an easy guided pilot tube assembly, comprising an outer tube and an auger pressing segment. The assembly is forced through soil by a press. The press typically exerts a force of up to 50 tons therewith pushing aside soil. A rotating action of a press head provides sufficient control of a 3-dimensional movement direction of a head section. The assembly is suited for applications wherein the soil can be pushed away. Herein the soil is the mixture of minerals, such as stone, sand, clay, and so on, and whatever is further present in the soil, such as organic matter, peat, gases, and water, and typically having a density of 1-3 gr/cm3. The present system is not suited for rock or the like.

In view of the forces applied upon pressing and thereafter the present tube is preferably sufficient stiff and strong, such as being reinforced with fiber, such as glass fiber, carbon fiber, aramid fiber, and basalt fiber, typically having a tangential stiffness and compressibility of 10 * 103 N/m2, or better, which is sufficient for coping with a load of the heaviest class vehicles (verkeersklasse 60 in the Netherlands) . The tangential stiffness and compressibility is preferably > 20 * 103 N/m2, more preferably > 50 * 103 N/m2, even more preferably > 100 * 103 N/m2, such as > 250 * 103 N/m2, e.g. 300 * 103 N/m2, 350 * 103 N/m2, 400 * 103 N/m2, and 500 * 103 N/m2. Pipe stiffness is considered to refer to a resistance to deflection. Pipes of standard stiffness classes are regarded as flexible because pipe deflection has a considerable effect on the load and pressure distribution in the soil, with the result that the soil plays a major role in the overall load-bearing system. In an example, the greater a pipe's wall thickness, the greater is the stiffness and therefore its ability to resist external bending loads or low internal pressure; the wall thickness may in addition to a choice of a material be varied in this respect. For better understanding tubes can be classified into certain stiffness classes. SN 5000: Pipes (or tubes) of this stiffness are selected for minor loads, for example when installed in mixed soil at a depth of 3 m and a live load corresponding to a 60 t truck. SN 10000: These pipes are designed for high loads, for example for installation in mixed soil at a depth of 4 m or a live load corresponding to a 60 t truck with little soil cover. SN >10000: For special cases pipes can be produced with a stiffness up to well over 500,000 N/m2, e.g. for landfill or well pipes. In the above SN refers to a Nominal Stiffness in N/m2. The present tubes are according to the two latter (more stiff) classes .

Examples of the present tube relate to GRP (Glass Reinforced Polyester) Pipes (GVK). From a mechanical point of view, it has proved useful to classify GRP pipes according to stiffness - as opposed to wall thickness. Instead of polyester other materials may be used as well, typically polymers, such as poly alkanes, such as PTFE, poly alkenes, e.g. poly propylene, polyesters, such as PET, vinyl esters, a poly epoxy, and polyamides, such as nylon, and resins, such as phenol formaldehyde resin, as well as co-polymers thereof, and substituted polymers thereof, and combinations thereof.

Both the pressing segment and tube are modular. The modular parts of the outer guiding tube are fixed together during pressing, typically by the force exerted on them. The pressing segment modules are removably attached to one and another. Pressing proceeds until a next follow up part can be attached, to the tube and to the pressing segment. The inner diameters of the tube modules are the same, in order to allow passage and free rotation of the pressing segment. It is preferred that also the thickness is the same, hence the outer diameter. For the follow up tubes typically the thickness is the same.

The press head receives the head tube, therewith protecting the head tube, fixing the head tube segment relative to the press segment and mitigating forces exerted on the tube and press. The receiving section typically also allows for compensating follow up tube product variation, e.g. in terms of length thereof.

For pilot guided pressing a guiding element is provided. The guiding element is preferably removably attached to the press head. In an alternative the guiding element is provided in a first follow up press segment, as an integral part thereof .

The tube inner diameter (Dti) is slightly larger, such as 0.05-10 mm larger, preferably 0.1-5 mm larger, more preferably 0.2-4 mm larger, such as 0.5-2.5 mm larger, than the outer auger press diameter (Dd0) allowing free rotation of the auger pressing segment.

The assembly further comprises a means (400) for pilot guided combined auger pressing of the tube and the auger pressing segment, hence the outer guiding tube and auger pressing segment are pressed within one and the same process step .

The present outer guiding tube is water and sand tight. The tube can be used directly to provide conducting elements such as cables, conducts, piping, glass-fiber, and so on. Typically the present outer guiding tube can withstand higher temperatures, such as above 60 °C, low temperatures, such as below -40 °C, and it can withstand temperature changes, such as of ±80 °C. The tube is preferably non-permeable, such as to contaminations being present in the soil. It is typically also chemically inert to contaminants being present in the soil, environment, or inside the tube. The inner side of the outer guiding tube is typically provided with a smooth surface which amongst others supports easy access for cables and conducts. The outer wall of the tube typically has a low coefficient of friction μ, e.g. lower than 0.5, preferably a low coefficient of kinetic friction yk, such as < 0.4 (e.g. according to DIN 51130). The tube is closed and hence no solid contaminants can enter or move through the outer tube. The present tube is preferably light weight, i.e. having a low specific mass, typically of less than 2.5 gr/cm3, preferably less than 2 gr/cm3, such as less than 1.5 gr/cm3. The present tube can also withstand high pressure forces, such as up to 50 tons. As such a wide range of applications is provided.

Contrary to many prior art devices the present assembly does not remove soil, especially for smaller diameter tubes up to 300 mm, which is a big advantage as no soil needs to be removed from a drilling or pressing location. In addition there is no need for a receiving hole, which makes the assembly more cost-effective, safer, and having a lower impact on measures for providing safety to workers and the direct environment. If necessary the drill head can be removed by digging only a very small hole, after localizing the drill head. Such is typically not much of an issue, even when the location is relatively dangerous, such as close to a (high-)way or railway track.

Thereby the present invention provides a solution to one or more of the above mentioned problems.

Advantages of the present invention are detailed throughout the description.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates in a first aspect to An easy guided pilot tube assembly according to claim 1.

In an exemplary embodiment of the present assembly the outer guiding tube is made of a reinforced material.

In an exemplary embodiment of the present assembly an outer diameter (Dt0)of the head tube and at least one follow up tube is the same.

In an exemplary embodiment of the present assembly the auger press heat comprises a magnetic material or wherein the auger press head is a disposable.

In an exemplary embodiment of the present assembly the head tube and or at least one follow up tube are made of a material selected from glass reinforced plastic, cast iron, carbon reinforce plastic, glass reinforced synthetic material, carbon reinforce synthetic material, a reinforced polymer, and a high strength polymer.

In an exemplary embodiment of the present assembly the head tube has a length (lht) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

In an exemplary embodiment of the present assembly the at least one follow up tube has a length (lfut) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

In an exemplary embodiment of the present assembly the auger press head has a length (lah) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

In an exemplary embodiment of the present assembly the at least one follow up auger press segment has a length (las) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

In an exemplary embodiment of the present assembly the tubes have a wall thickness (tw) of 2-10 mm.

In an exemplary embodiment of the present assembly the tube inner diameter (Dti) is 5-500 mm, preferably 10-300 mm, more preferably 15-250 mm, even more preferably 20-200 mm, such as 50-150 mm.

In an exemplary embodiment of the present assembly the at least one follow up auger press segment is hollow to function as at least one optical passage.

In an exemplary embodiment of the present assembly at least one tube follow up segment comprises an inner stop.

In an exemplary embodiment of the present assembly the head tube has a receiving section (25) at one end thereof, wherein the wall thickness of the tube is increased from the end inwards .

In an exemplary embodiment of the present assembly the at least one follow up tube has a receiving section (25a,25b) at at least one end thereof wherein the wall thickness of the tube is increased from the end inwards.

In an exemplary embodiment of the present assembly the inner diameter of the at least one follow up tube is decreased from one end inwards and wherein the receiving section has an average thickness smaller than 50% of the wall thickness (tw) of the tube and/or wherein the inner diameter of the receiving section remains constant and wherein the receiving section has an average thickness larger than 50% of the wall thickness (tw) of the tube.

In an exemplary embodiment of the present assembly a length of the receiving section (lrs) is 10-100 mm, preferably 15-75 mm, more preferably 20-50 mm, such as 25-45 mm.

In an exemplary embodiment of the present assembly the means (400) for pilot guided combined auger pressing of the tube and the auger pressing segment is selected from a combined auger press,

In an exemplary embodiment of the present assembly the means (400) for pilot guided combined auger pressing comprise at least one of a precise angle measurement device, such as a theodolite, an optical camera, a distance measurement device, an accelerometer, a transceiver, a positioning device, a monitor, and a connecting means.

In an exemplary embodiment of the present assembly the tube segments comprise at least one recess for receiving a flexible sealing ring, and a sealing ring, wherein the recess has a width of 2-15 mm and a depth of 0.5-5 mm.

In a second aspect the present invention relates to an outer guiding tube (200) for use in an assembly according to the invention, the outer tube comprising (ia) an head tube (21), and (iib) at least one follow up tube (22a,22b), wherein the head tube and the at least one follow up tube are removably connected, wherein the tubes have a same inner diameter (Dti) , and a same thickness (t) .

In a third aspect the present invention relates to an auger pressing segment (300) for use in an assembly according to the invention, the auger pressing segment comprising (iia) a auger press head (31), the auger press head comprising a head tube receiving section for receiving an end section of the head tube, (iib) a auger press guiding element (33) removably attached to the auger press head, and (iib) at least one follow up auger press segment (32a,32b), wherein the auger press guiding element and at least one follow up auger press segment are removably connected, wherein the auger press head and at least one auger press segment have a same outer diameter (Dd0) .

In an exemplary embodiment of the auger pressing segment the head tube receiving section extends 10-200 mm.

In an exemplary embodiment of the auger pressing segment the head tube receiving section comprises an inner stop .

In an exemplary embodiment of the auger pressing segment the receiving section has an inner diameter which is 0.1-10 mm larger than the outer diameter of the head tube.

In an exemplary embodiment of the auger pressing segment the auger press head has a cylindrical drill bit with a cut-out section under a constant or varying angle of 20-70° relative to a side of the cylinder, preferably 30-65°, more preferably 40-60°, such as 45-55°. In principle typically used auger press heads can be used and a selection thereof can be adapted to various soils. It has been found that the cut-out section reduces friction and improves movement of the auger press segment through the soil.

In an exemplary embodiment of the auger pressing segment the auger press head is closed.

In a fourth aspect the present invention relates to a method of auger pressing a passage with a length of 2-500 meters comprising the steps of digging an entrance cavity for auger pressing, at one end of the passage, providing an assembly according to the present invention, pilot guiding auger pressing a first segment of a passage way using the auger press head and head tube and thereby forcing soil aside, (a) attaching at least one follow up tube to the head tube and at least one follow up auger press segment to the auger press head, (b) pilot guiding auger pressing at least one follow up segment of a passage way comprising at least one follow up tube and at least one follow up auger press segment and thereby forcing soil aside, repeating steps (a) and (b) for auger pressing optional further follow up segments of the passage way, and detaching a first follow up auger press segment from the auger press head, retracting the at least one auger press segment from the tube segment. The method is performed in one pass. With the present pilot guiding means length of up to 150 meters are possible, as for larger length optical control of the pilot head becomes cumbersome. In view thereof lengths are more often limited to 50-100 meters, such as 70-90 meters.

In an exemplary embodiment the present method further comprises the steps of determining a location of the auger press head, and retrieving the auger press head, such as by digging a hole at the other end of the passage way.

The invention is further detailed by the accompanying figures and examples, which are exemplary and explanatory of nature and are not limiting the scope of the invention. To the person skilled in the art it may be clear that many variants, being obvious or not, may be conceivable falling within the scope of protection, defined by the present claims.

SUMMARY OF THE FIGURES

Fig. 1 shows a cross-section of an example of a head tube .

Fig. 2 shows an enlarged part of the head tube.

Fig. 3 shows a cross-section of an example of a follow up tube.

Fig. 4 shows an enlarged part of the follow up tube.

Fig. 5a shows a cross section of the present auger head, fig. 5b a front cross sectional view of a follow up auger press segment 32a for entering into the receiving section and fig. 5c a cross section of one follow up auger press segment (32a).

Fig. 6 show a deflection (%) as a result of a force applied.

DETAILED DESCRIPTION OF THE FIGURES

In the figures: 100 pilot tube assembly 200 outer guiding tube 21 head tube 22a follow up tube 22b follow up tube 25 receiving section head tube 25a receiving section follow up tube 25b receiving section follow up tube 300 Auger pressing element 31 auger press head 32 follow up auger press segment 33 auger press guiding element 400 means for pilot guiding

Dd0 outer auger press diameter

DfUt reduced inner diameter follow up tube

Dri inner diameter recess

Dr0 outer diameter recess

Dss outer diameter solid segment auger press

Dti tube inner diameter

Dt0 outer diameter head tube

Dtro reduced outer diameter head tube lah auger press head length las auger press segment length lfUt follow up tube length lht head tube length lrs receiving section length tw tubes wall thickness

In figure 1 a head tube 21 is shown. All of the below dimensions (for all figures) are ±0.1 mm, except if indicated otherwise. The head tube has a length lht of 750 mm. The inner diameter Dti is 100 mm and the outer diameter Dt0 is 116 mm (both ±0.3 mm). The outer diameter may undergo a postprocessing step, e.g. in order to more precisely produce the diameter. The receiving section length lrs is 110 mm. Indicated is also a part that is further enlarged in figure 2.

Figure 2 shows an enlarged part of figure 1. Therein the inner diameter Dti is 100 mm and the outer diameter Dt0 is 116 mm (both ±0.3 mm). Further a reduced outer diameter head tube Dtro of 110 mm, and an outer diameter recess Dr0 of 105 mm are shown. Two recesses are shown. The recesses have both a width of 8 mm with an intermediate width between the recesses of 15 mm. Further the reduced outer diameter head tube sections have a width of (seen from left to right) 6 mm, 15 mm (as mentioned) and 8 mm, respectively. A total length of the receiving section therefore is 45 mm.

Figure 3 shows a follow up tube with a length of 1045 mm and an outer diameter Dt0 is 116 mm (±0.3 mm). Indicated is also a part that is further enlarged in figure 4.

Figure 4 shows an enlarged part of figure 3. Therein the inner diameter Dti is 100 mm and the outer diameter Dt0 is 116 mm (both ±0.3 mm). Further a reduced inner diameter follow up tube Dfut of 111 mm, and an inner diameter recess Dri of 105 mm with a width of 8 mm are shown. Further the reduced inner diameter follow up tube sections have a width of (seen from left to right) 5 mm, 8 mm (as mentioned) and 32 mm, respectively. A total length of the receiving section therefore is 45 mm. Together with the reduced outer diameter section, and one or two flat O-rings (not shown), having a width of 7-8 mm and a thickness of 1.5-2 mm, a firm and tight connection between two consecutive tubes can be made.

Fig. 5a shows a cross section of the present auger head. The head has a pointed top, with an angle a of 35-65°, preferably 40-50°, and a second angle β of 180-(35-65)°, i.e. 115-145°, preferably 130-140°. The outer diameter of the auger head Dd0 is 125 mm, that Dss of an inner largely solid segment receiving section is 100 mm, the length of the receiving section lrs is 100 mm, a thickness of said (circular) receiving section is 2.5 mm. The solid segment has an inner non-circular diameter Diss of 60 mm, a receiving length lri of 60 mm, a top thickness tt of 15 mm and a bottom thickness tb of 25 mm (hence not circular receiving part). The receiving segment may be welded to the head.

Figure 5b shows a front cross sectional view of a follow up auger press segment 32a for entering into the receiving section with a diameter of 70 mm and a cut-off section with a width of 60 mm. Figure 5c shows a cross section of one follow up auger press segment (32a) with a diameter Diss of 60 mm, a length of a top part of 55 mm, a stop part extending 15-25 mm out of the top part and having a width of 20 mm, and a right section symmetrically positioned around a virtual central axis thereof.

Figure 6 show a deflection (%) as a result of a force applied. On the vertical axis the applied force in N is plotted versus a relative deflection (in %) , calculated as the deflection (in meter) divided by a relative size.

EXAMPLES/EXPERIMENTS

The invention although described in detailed ex planatory context may be best understood in conjunction with the accompanying examples and figures.

Experiment

The present tube has been tested according to EN 14364, EN 1226, EN 1228 and ASTM D 2412. A test specimen was cut from a pipe with number 0002 ID 150. The pipe relates to a so-called helical filament winding 85° glass fiber reinforced polyester isophthalate resin (direct rowing TEX 2400) type. Three measurements per test were performed on 1 specimen, at 25 °C. The thickness was approximately 1.48 cm, an outer diameter 17.9 cm and an inner diameter of 16.4 cm.

For the EN 14364 a specimen was placed in a press machine between two parallel compression plates. According to method B a load was applied in steps such that a relative deflection of 2.5% and 3.5% was reached. The deflection was maintained constant for two minutes and an average value for three sectors was determined. A similar test was performed, now having a relative deflection of 5%, which was also maintained for two minutes. The absence of internal cracking and structural break was established.

The present tubes were capable of withstanding a force of up to 300 * 103 N/m2, without showing any deterioration. The tangential stiffness of the tubes is thus similar, namely capable of withstanding at least 300 * 103 N/m2.

Position Charge F Deflection y Deflection (newton) (meter) relative y/dm (%) 360° - 180° 2068.0 0.0010 0.6084 3073.0 0.0020 1.2169 4563.0 0.0030 1.8253 15366.0 0.0050 3.0421 15193.0 0.0050 3.0421

Table 1. Results of deflection measurements of charges on various positions of a tube. The position are taken in the indicated segment of the tube.

The specific tangential initial stiffness is calculated as follows: SO = (0,0186 + 0,025 y/dm) F/(L χ y) = 300.915 N/m2. The results are also plotted in figure 6.

Similar results are obtained for the 60° - 240° section, resulting in an average SO of 341.934 N/m2, and the 120° - 300° section, resulting in an average SO of 290.596 N/m2. In all cases no cracking and no structural break was observed.

Claims

1. Eenvoudig te leiden voorgeleider buissamenstel (100) omvattend (i) een buitenste leidbuis (200), waarbij de buitenste leidbuis een stijfheid en samendrukbaarheid van 10 * 103 N/m2 of hoger heeft, waarbij de buitenste buis omvat (ia) een kopbuis (21), en (ib) ten minste één volgbuis (22a, 22b), waarbij de kopbuis en de ten minste ene volgbuis demonteerbaar zijn bevestigd, waarbij de buizen een gelijke bin-nendiameter (Dt±) , en bij voorkeur een gelijke dikte (t) hebben, (ii) een boordruksegment (300), waarbij het boor drukkend segment omvat (iia) een boordrukkop (31), waarbij de boordrukkop een ontvangstgedeelte voor het ontvangen van een eindgedeelte van de kopbuis omvat, (iib) een boordruk-leidelement (33) dat demonteerbaar aan de boordrukkop bevestigd is, en (iib) ten minste één volgboordruksegment (32a, 32b), waarbij de boordrukkop en ten minste één volgboordruksegment demonteerbaar zijn verbonden, waarbij de boordrukkop en ten minste één boordruksegment een zelfde buitendiameter (Ddo) hebben, waarbij de binnendiameter (Dti) van de buis 0,05-10 mm groter is dan de boordruk-buitendiameter (Ddo) wat rotatie van het boordruksegment mogelijk maakt, en (iii) een middel (400) voor geleide gecombineerde boordrukking van de buis en het boordruksegment.An easy-to-guide pre-conductor tube assembly (100) comprising (i) an outer guide tube (200), wherein the outer guide tube has a rigidity and compressibility of 10 * 103 N / m2 or higher, the outer tube comprising (ia) a head tube (21), and (ib) at least one follower tube (22a, 22b), the head tube and the at least one follower tube being removably mounted, the tubes having the same inner diameter (Dt ±), and preferably the same thickness (t), (ii) have an on-board pressure segment (300), the drill-pressing segment comprising (iia) an on-board pressure head (31), the on-board pressure head comprising a receiving portion for receiving an end portion of the head tube, (iib) an on-board pressure -leaving element (33) which is detachably attached to the vehicle pressure head, and (iib) at least one follow-on drilling pressure segment (32a, 32b), wherein the pressure-on pressure head and at least one follow-on drilling pressure segment are demountably connected, wherein the on-board pressure head and at least one on-board pressure segment have the same outside ndiameter (Ddo), the inside diameter (Dti) of the tube being 0.05-10 mm larger than the side pressure outside diameter (Ddo) allowing rotation of the side pressure segment, and (iii) a means (400) for guide combined piping of the tube and the piping segment.

2. Samenstel volgens conclusie 1, waarbij een buitendiameter (Dt0) van de kopbuis en ten minste één volgende buis hetzelfde is.An assembly according to claim 1, wherein an outer diameter (Dt0) of the head tube and at least one subsequent tube is the same.

3. Samenstel volgens één van de voorgaande conclusies waarbij de boordrukkop een magnetisch materiaal omvat of waarbij de boordrukkop een wegwerpartikel is.3. Assembly according to one of the preceding claims, wherein the vehicle pressure head comprises a magnetic material or wherein the vehicle pressure head is a disposable item.

4. Samenstel volgens één van de voorgaande conclusies, waarbij de kopbuis en/of ten minste één volgende buis uit een materiaal vervaardigd zijn gekozen uit met glas ver stevigde kunststof, gietijzer, met koolstof verstevigde kunststof, met glas verstevigd synthetisch materiaal, met koolstof verstevigd synthetisch materiaal, een verstevigd polymeer, en een hoge sterkte polymeer.Assembly as claimed in any of the foregoing claims, wherein the head tube and / or at least one following tube are made from a material selected from glass-reinforced plastic, cast iron, carbon-reinforced plastic, glass-reinforced synthetic material, carbon-reinforced synthetic material, a reinforced polymer, and a high-strength polymer.

5. Samenstel volgens één van de voorgaande conclusies, waarbij de kopbuis een lengte (lht) van 10-200 cm heeft, bij voorkeur 20-100 cm, zoals 30-50 cm.An assembly according to any one of the preceding claims, wherein the head tube has a length (1ht) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

6. Samenstel volgens één van de voorgaande conclusies, waarbij de ten minste ene volgbuis een lengte (lfut) van 10-200 cm heeft, bij voorkeur 20-100 cm, zoals 30-50 cm.An assembly according to any one of the preceding claims, wherein the at least one follower tube has a length (10ut) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

7. Samenstel volgens één van de voorgaande conclusies, waarbij de boordrukkop een lengte (lah) van 10-200 cm heeft, bij voorkeur 20-100 cm, zoals 30-50 cm.An assembly according to any one of the preceding claims, wherein the vehicle pressure head has a length (lah) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

8. Samenstel volgens één van de voorgaande conclusies, waarbij het ten minste ene volgboordruksegment een lengte (las) van 10-200 cm heeft, bij voorkeur 20-100 cm, zoals 30-50 cm.Assembly as claimed in any of the foregoing claims, wherein the at least one follow-on pressure segment has a length (weld) of 10-200 cm, preferably 20-100 cm, such as 30-50 cm.

9. Samenstel volgens één van de voorgaande conclusies waarbij de buizen een wanddikte (tw) van 2-10 mm hebben.Assembly according to one of the preceding claims, in which the tubes have a wall thickness (tw) of 2-10 mm.

10. Samenstel volgens één van de voorgaande conclusies, waarbij de binnendiameter (Dti) van de buis 5-500 mm is, bij voorkeur 10-300 mm, liever 15-250 mm, nog liever 20-200 mm, zoals 50-150 mm.An assembly according to any one of the preceding claims, wherein the inner diameter (Dti) of the tube is 5-500 mm, preferably 10-300 mm, more preferably 15-250 mm, even more preferably 20-200 mm, such as 50-150 mm .

11. Samenstel volgens één van de voorgaande conclusies, waarbij het ten minste ene volgboordruksegment hol is om als ten minste één optische doorgang te fungeren.An assembly according to any one of the preceding claims, wherein the at least one follow-up pressure segment is hollow to act as at least one optical passage.

12. Samenstel volgens één van de voorgaande conclusies, waarbij ten minste één volgbuissegment een binnenstop omvat.An assembly according to any one of the preceding claims, wherein at least one follower tube segment comprises an inner plug.

13. Samenstel volgens één van de voorgaande conclusies, waarbij de kopbuis een ontvangstgedeelte (25) heeft bij een uiteinde daarvan, waarbij de wanddikte van de buis vanaf het uiteinde naar binnen vergroot wordt.An assembly according to any one of the preceding claims, wherein the head tube has a receiving portion (25) at one end thereof, wherein the wall thickness of the tube is increased inward from the end.

14. Samenstel volgens één van de voorgaande conclusies, waarbij de ten minste ene volgbuis een ontvangstgedeelte (25a, 25b) heeft bij ten minste een uiteinde daarvan waarbij de wanddikte van de buis van het uiteinde naar binnen toe neemt.An assembly according to any one of the preceding claims, wherein the at least one follower tube has a receiving portion (25a, 25b) at at least one end thereof with the wall thickness of the tube increasing inward from the end.

15. Samenstel volgens conclusie 14, waarbij de bin-nendiameter van de ten minste ene volgbuis van één uiteinde naar binnen afneemt waarbij het ontvangstgedeelte een gemiddelde dikte kleiner dan 50% van de wanddikte (tw) van de buis heeft en/of waarbij de binnendiameter van het ontvangstgedeelte constant blijft en waarbij het ontvangstgedeelte een gemiddelde dikte groter dan 50% van de wanddikte (tw) van de buis heeft.An assembly according to claim 14, wherein the inner diameter of the at least one follower tube decreases from one end inwards wherein the receiving portion has an average thickness of less than 50% of the wall thickness (tw) of the tube and / or wherein the inner diameter of the receiving portion remains constant and wherein the receiving portion has an average thickness greater than 50% of the wall thickness (tw) of the tube.

16. Samenstel volgens één van de conclusies 13-15, waarbij een lengte van het ontvangstgedeelte (lrs) 10-100 mm is, bij voorkeur 15-75 mm, liever 20-50 mm, zoals 25-45 mm.An assembly according to any of claims 13-15, wherein a length of the receiving portion (lrs) is 10-100 mm, preferably 15-75 mm, more preferably 20-50 mm, such as 25-45 mm.

17. Samenstel volgens één van de voorgaande conclusies waarbij het middel (400) voor voorgeleider gecombineerde boordrukking van de buis en het boordruksegment een gecombineerde boordrukker is.Assembly according to any of the preceding claims, wherein the means (400) for pre-conductor combined edge compression of the tube and the edge pressure segment is a combined edge press.

18. Samenstel volgens één van de voorgaande conclusies, waarbij de middelen (400) voor voorgeleider gecombineerde boordrukking tenminste één omvat van een precieze hoekmeet-inrichting, zoals een theodoliet, een optische camera, een af-standsmeetinrichting, een versnellingsmeter, een zendontvan-ger, een positioneringsinrichting, een beeldscherm, en een verbindingsmiddel.An assembly according to any one of the preceding claims, wherein the means (400) for pre-conductor combined boarding comprises at least one of a precise angle measuring device, such as a theodolite, an optical camera, a distance measuring device, an accelerometer, a transceiver , a positioning device, a display, and a connecting means.

19. Samenstel volgens één van de voorgaande conclusies, waarbij de buissegmenten ten minste één uitsparing voor het ontvangen van een flexibele afdichtring, en een afdicht-ring omvatten, waarbij de uitsparing een breedte van 2-15 mm en een diepte van 0,5-5 mm heeft.Assembly according to any of the preceding claims, wherein the pipe segments comprise at least one recess for receiving a flexible sealing ring, and a sealing ring, the recess having a width of 2-15 mm and a depth of 0.5- Has 5 mm.

20. Geleidingsbuitenbuis (200) voor gebruik in een samenstel volgens één van de conclusies 1-19, waarbij de buitenbuis omvat (ia) een kopbuis (21), en (ib) ten minste één volgende buis (22a, 22b), waarbij de kopbuis en de ten minste ene volgende buis demonteerbaar verbonden zijn, waarbij de buizen eenzelfde binnendiameter (Dti), en eenzelfde dikte (t) hebben.The guide outer tube (200) for use in an assembly according to any one of claims 1-19, wherein the outer tube comprises (ia) a head tube (21), and (ib) at least one subsequent tube (22a, 22b), the the head tube and the at least one subsequent tube are demountably connected, the tubes having the same inner diameter (Dti) and the same thickness (t).

21. Boordruksegment (300) voor gebruik in een samenstel volgens één van de conclusies 1-19, waarbij het boordruksegment omvat (iia) een boordrukkop (31), waarbij de boordrukkop een kopbuis-ontvangstgedeelte omvat om een eindgedeelte van de kopbuis te ontvangen, (iib) een boordrukgeleider element (33) dat demonteerbaar aan de boordrukkop is bevestigd, en (iic) ten minste een volgboordruksegment (32a, 32b), waarbij het boordrukgeleider element en ten minste een volgboordruksegment demonteerbaar verbonden zijn, waarbij de boordrukkop en het ten minste ene boordruksegment eenzelfde buitendiameter (Dd0) hebben.An on-board pressure segment (300) for use in an assembly according to any one of claims 1-19, wherein the on-board pressure segment comprises (iia) an on-board pressure head (31), the on-board pressure head comprising a head tube receiving portion to receive an end portion of the head tube, (iib) an on-board pressure guide element (33) that is detachably attached to the on-board pressure head, and (iic) at least one follow-on-board pressure segment (32a, 32b), wherein the on-board pressure guide element and at least one on-board press segment are demountably connected, the on-board print head and the least one board pressure segment have the same outside diameter (Dd0).

22. Boordruksegment volgens conclusie 21, waarbij het kopbuis-ontvangstgedeelte 10-200 mm uitsteekt, en/of waarbij het ontvangstgedeelte een binnenstop omvat.The vehicle pressure segment according to claim 21, wherein the head tube receiving portion protrudes 10-200 mm, and / or wherein the receiving portion comprises an inner plug.

23. Boordruksegment volgens één van de conclusies 21- 22, waarbij het ontvangstgedeelte een binnendiameter heeft die 0,1-10 mm groter is dan de buitendiameter van de kopbuis.The board pressure segment of any one of claims 21 to 22, wherein the receiving portion has an inner diameter that is 0.1-10 mm larger than the outer diameter of the head tube.

24. Boordruksegment volgens één van de conclusies 21- 23, waarbij de boordrukkop een cilindrische boorkop heeft met een uitgesneden gedeelte onder een constante of variërende hoek van 20-70° ten opzichte van een zijkant van de cilinder.The drill press segment according to any of claims 21-23, wherein the drill press head has a cylindrical drill head with a cut-out portion at a constant or varying angle of 20-70 ° with respect to a side of the cylinder.

25. Boordruksegment volgens één van de conclusies 21- 24, waarbij de boordrukkop gesloten is.The vehicle pressure segment according to any of claims 21 to 24, wherein the vehicle pressure head is closed.

26. Werkwijze van een boordoorgang drukken met een lengte van 2-500 meter omvattend de stappen van het graven van een ingangsholte voor boordrukking, aan een uiteinde van de doorgang, het verschaffen van een samenstel volgens één van de conclusies 1-19, het voorgaand geleidend boordrukken van een eerste segment van een doorgang gebruikmakend van de boordrukkop en kopbuis en daardoor grond verdringend, (a) het aan de kopbuis bevestigen van ten minste één volgbuis en het aan de boordrukkop bevestigen van tenminste één volgboordruksegment, (b) het voorgeleider boordrukken van ten minste één volgsegment van een doorgang dat ten minste één volgende buis en ten minste één volgboordruksegment omvat en daardoor grond verdringend, het herhalen van stappen (a) en (b) voor het boord-rukken van optionele andere volgende segmenten van de doorgang, en het ontkoppelen van een eerste volgende boordrukseg-ment van de boordrukkop, het terugtrekken van het ten minste ene boordrukseg-ment van het buissegment.A method of drilling a bore passageway with a length of 2-500 meters comprising the steps of digging an entrance cavity for embossing, at one end of the passageway, providing an assembly according to any of claims 1-19, the foregoing conductive press-on of a first segment of a passage using the press-on head and head tube and thereby displacing soil, (a) attaching at least one follow-up tube to the press-on head and attaching at least one follow-up press segment to the press-on press head, (b) pre-guide press-on of at least one follower segment of a passageway comprising at least one subsequent pipe and at least one follower board pressure segment and thereby displacing soil, repeating steps (a) and (b) for jerking optional other subsequent segments of the passageway, and uncoupling a first subsequent vehicle pressure segment from the vehicle pressure head, withdrawing the at least one vehicle pressure segment from the pipe segment.

27. Werkwijze volgens conclusie 30, die verder de stappen omvat van het bepalen van een locatie van de boordrukkop, en het ophalen van de boordrukkop, zoals door het graven van een gat aan het andere uiteinde van de doorgang.The method of claim 30, further comprising the steps of determining a location of the vehicle print head, and retrieving the vehicle print head, such as by digging a hole at the other end of the passage.