JPH04222798A - Driving equipment for driving method - Google Patents

Abstract

PURPOSE:To make it possible to drive a driving pipe along a scheduled driving course by providing a guide cylinder for changing a driving direction of the driving pipe to a scheduled driving direction at a position having a specific depth different from a driving direction. CONSTITUTION:A driving operation section of a driving device 3 is operated, a guide cylinder 5 consisting of an underground guide 18 and an aerial guide 19 is held with a holding clamp, the clamp is sent downward of a driving direction by a driving cylinder 17. After that, the clamp opens the guide cylinder 5 having a reaction force receiving device 24, and after the clamp is sent upward of a driving direction by the cylinder 17, the cylinder 5 is driven forward by repeating the same operation. Then, the driving operation section is operated, an excavating driving head 11 is driven in the ground and, at the same time, a driving pipe 10 is held with the clamp, and the clamp is sent downward of the driving direction by the cylinder 17. In addition, after the clamp is sent upward of the driving direction by the cylinder 17, the driving pipe 10 is inserted into the cylinder 5 to drive it in the ground by repeating the same operation.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to propulsion equipment for a propulsion method that can be constructed from the ground without a pit for installing the propulsion equipment in a horizontal hole in the ground where underground pipes are installed. A propulsion device is used to push a plurality of connected propulsion tubes in the axial direction to propel the excavation propulsion head attached to the tip side propulsion tube underground, in a position where the driving direction is inclined with respect to the ground. Concerning propulsion equipment for propulsion construction methods attached to a base.

0002

[Prior Art] Conventionally, the propulsion equipment for the above-mentioned propulsion method is formed on an inclined surface at the tip of a propulsion head, and is rotated around the axis of the propulsion head to change the orientation of the inclined surface with respect to the propulsion direction. A method has been proposed in which the direction of propulsion of the propulsion head is changed using the earth pressure received during excavation. Then, with the propulsion equipment for this propulsion method installed on the ground, drive the propulsion pipe in a direction inclined to the ground,
After changing the direction of the inclined surface of the propulsion head and changing the propulsion direction of the propulsion head to a planned propulsion direction different from the driving direction of the propulsion tube, excavation can be performed in the planned propulsion direction.

0003

[Problems to be Solved by the Invention] When proceeding with propulsion work using the propulsion equipment for the propulsion method described above, the propulsion pipe following this propulsion head passes through the path excavated by this propulsion head, and the above-mentioned problems arise. At the direction change point, the propulsion head and the propulsion tube, or the propulsion tubes that are adjacent to each other in the front and rear positions, are connected in a bent posture and propelled, so that the axial center of the propulsion head is transmitted through the propulsion tube on the rear end side. It is important to make the component force of thrust directed in the direction effectively contribute to propulsion. However, in the above-mentioned equipment, since the propulsion tube is propelled directly into the soil, when the propulsion tube is pushed in the axial direction on the bending path against the soil, which is prone to compression and deformation in its natural state, There was a risk that the propulsion tube would sink into the ground at the bending route due to the propulsion force, causing it to deviate from the planned propulsion route. When such a situation occurs, not only the thrust force cannot be effectively used for propulsion in the planned propulsion direction, but also a great deal of effort is required to correct the propulsion direction. In addition, since the thrust force is not effectively used, there is a drawback that the applicable soil type is limited to soft soil. The present invention has been developed in view of the above-mentioned circumstances, and allows the propulsion method to be carried out from the ground, does not deviate from the planned propulsion path during propulsion, and allows the thrust to be used effectively for propulsion in the planned propulsion direction. The purpose is to provide propulsion equipment that can expand the types of soil that can be used.

0004

[Means for Solving the Problems] A characteristic configuration of the present invention for achieving the above object in the propulsion equipment for the propulsion method described above is that the propulsion direction of the propulsion pipe is set at a predetermined depth position different from the driving direction. A guide tube for changing the planned propulsion direction is provided, and a mounting portion for detachably attaching the guide tube is provided on the propulsion operation section of the propulsion device and the base, respectively. be. Note that it is also useful to provide a reaction force receiving means on the guide tube.

[0005]

[Function] In other words, the guide cylinder provided at the location where the propulsion head is changed to the planned propulsion direction at a predetermined depth position, which is different from the driving direction that is inclined to the ground, is formed into a shape that corresponds to the degree of direction change. By doing so, when the propulsion head and the propulsion tube are pushed in the axial direction at this direction change point and propelled, the thrust in the direction that deviates from the planned propulsion direction is received by the contact between the propulsion tube and the guide tube, and the propulsion is continued. Since the tube is prevented from deviating from the planned propulsion direction, the propulsion of the propulsion tube can be easily changed. Since fixing parts for fixing the guide tube in a detachable manner are provided on the propulsion operating section and the base of the propulsion device, the guide tube can be connected and fixed to the fixed section of the propulsion operating section. The guide tube can be propelled into the ground by operating the propulsion operation section, and once the guide tube has been deployed, the guide tube is detached from the fixed section of the propulsion operation section and connected and fixed to the fixed section of the base. By operating the propulsion operation section in this state, the plurality of propulsion tubes and propulsion heads can be propelled into the ground through the guide tubes. In other words, when deploying this guide tube, it is possible to propel the guide tube in the propulsion direction of the propulsion tube in the same way as when propelling the propulsion tube using a propulsion device that normally propels the propulsion tube underground. can. In particular, when the guide tube is provided with a reaction force receiving means as described in claim 2, the propulsion device and the guide tube each press the propulsion tube in the axial direction while being fixed to the base. The reaction force generated as a reaction to the propulsive force can be received by the reaction force receiving means via the fixed portion of the base and the guide cylinder.

[0006]

[Effects of the Invention] Therefore, the propulsion head and the propulsion tube can be easily guided along the planned propulsion path without deviating from the planned propulsion path by the guidance of the guide tube, and the construction precision of the propulsion tube can be improved. The thrust from the rear end of the head propulsion can be effectively used in the planned propulsion direction, and the workability of the propulsion head and propulsion tube during propulsion can also be improved. In addition, by simply providing a fixed part in the propulsion operation section, the guide tube can be installed using the existing propulsion device, and overall the propulsion equipment for the propulsion method can be provided with high accuracy and efficiency in propulsion work. In particular, as described in claim 2, by providing a reaction force receiving means on the guide cylinder, the reaction force is resisted by the reaction force receiving means and the lifting of the base due to the reaction force is suppressed. The propulsion equipment work for the propulsion method can be performed stably, the workability during propulsion of the propulsion pipe can be further improved, and the types of applicable soil types can be further expanded.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. FIG. 1 shows propulsion equipment for the propulsion method for carrying out the propulsion method according to the present invention. The equipment for the propulsion method includes a winder 2 that winds up and supports the propellant 1;
A propulsion device 3 that pushes the propellant 1 into the soil while feeding it out, a base 4 that fixedly supports the winder 2 and the propulsion device 3, and a guide tube that changes and guides the propulsion direction of the propellant 1. It is composed of 5th grade. The base 4 is mounted and fixed on a vehicle 7 equipped with an outrigger 6, and the vehicle can be moved by mounting propulsion equipment for the propulsion method, such as a winder 2, a propulsion device 3, and a base 4, on this vehicle. It is possible.

As shown in FIG. 2, the propelling body 1 has a plurality of rigid short tube sections 8 (about 100 to 500 mm in length) and a joint section 9 in which each of the plurality of rigid short tube sections 8 is interposed between the plurality of rigid short tube sections 8. It is constituted by a combination of a plurality of propulsion tubes 10, which are bendably connected via a plurality of propulsion tubes 10, and a propulsion head 11 attached to the tip side of these tubes.

[0009] The propulsion head 11 has, for example, a diameter of 50 to 70
A main body 12 with a small diameter of mm, and a rotary excavating part 1 attached to the tip of the main body 12 so as to be rotatable around the front-rear axis X.
It consists of 3. The rotary excavator 13 is connected to the propulsion head 1
Its outer surface is formed into an inclined surface 14 so that the direction of propulsion can be changed by utilizing the earth pressure received as the propeller 1 is propelled underground.

The propulsion device 3 is equipped with a propulsion operation section 15. As shown in FIG. 3, this propulsion operation unit 15 includes a holding clamp 16 that can hold and open the propelling body 1, and a propulsion cylinder 17 for reciprocating the holding clamp 16 along the propulsion direction of the propelling body 1. It becomes more. Then, the propulsion operation section 15 is operated to first clamp the propulsion tube 10 with the holding clamp 16, and then the propulsion cylinder 17 moves the holding clamp 16 with a predetermined stroke to hold the propulsion tube 10.
A series of operations in which the holding clamp 16 opens the propulsion tube 10 after sending the holding clamp 16 to the lower side in the propulsion direction, and the propulsion cylinder 17 sends the holding clamp 16 to the upper side in the propulsion direction of the propulsion tube 10 with a predetermined stroke. By repeating this, the propulsion tube 10 is propelled.

As shown in FIG. 1, the guide tube 5 is composed of an underground guide 18 and an aerial guide 19. The underground guide 18 has a curved intermediate portion in accordance with the degree of direction change at a point where the direction is changed to a planned propulsion direction different from the driving direction of the propulsion pipe 10 that is inclined with respect to the ground. During propulsion construction, the opening 20 at one end of this underground guide 18 is placed in a position to penetrate the existing manhole 21 and directed in the planned propulsion direction at a predetermined depth, and the opening 22 at the other end is opened to the ground surface. It is placed in a state where it can be used. One end of the aerial guide 19 is screwed and connected to the opening 22 at the other end, and the other end of the aerial guide 19 is connected to the base 4 on the lower side of the propulsion operation section 15. It is connected and fixed to the fixed part 23.

The holding clamp 16 of the propulsion operation section 15 is configured to be able to clamp and open the guide tube 5 as well, and the propulsion operation section 15 allows the guide tube 5 to be held on the ground in the same manner as the propulsion tube 10. It is configured to allow medium propulsion. That is, as shown in FIG. 3, in the same way as the propulsion tube 10 is propelled by the clamp clamp 16 and the propulsion cylinder 17, which are fixed parts that fix the guide tube 5 in a detachable manner, the guide tube 10 is pushed by the clamp clamp 16. 5 is clamped, and the propulsion cylinder 17 sends the clamp 16 to the downstream side in the propulsion direction with a predetermined stroke. Next, the clamp 16
opens the guide cylinder 5, and the propulsion cylinder 17
As a result, the holding clamp 16 is sent upward in the direction of propulsion with a predetermined stroke. These series of operations are repeated to propel the guide cylinder 5.

As shown in FIG. 1, after the guide tube 5 is placed at a predetermined position, the other end of the aerial guide 19, which is opposite to the one end to which the aerial guide 19 is screwed, is connected. It is connected and fixed to the fixing part 23 of the base 4. Thereafter, the propulsion device 3 causes the propulsion body 1 to pass through the guide tube 5 and propel it into the soil.

Therefore, according to the propulsion method according to the present invention,
As the propellant 1 is propelled by the propulsion device 3, the propellant 1 is guided into the soil by the aerial guide 19 and the underground guide 18, and when the propellant 1 propels the underground guide 18,
When the propelling body 1 is pushed in the axial direction at a point where the direction is changed to a planned propulsion direction different from the driving direction of the propelling body 1 that is inclined with respect to the ground, the thrust force is generated in a direction that deviates from the planned propulsion direction. is received and restrained by the contact with the underground guide 18 of the propelling body 1, so that the direction is curved according to the degree of direction change at the point where the direction is changed to the planned direction of propulsion, which is different from the direction of driving that is inclined to the ground. The direction change is easily guided along the shape of the underground guide 18. In addition,
The guide tube 5 can be installed to also serve as propulsion equipment for propelling the propellant 1, and the guide tube 5 can be installed easily.

Further, a reaction force receiver 24 serving as a reaction force receiving means is attached to the middle of the underground guide 18. The reaction force receiver 24 has a plate shape with a flat surface, and the flat surface is brought into contact with the side surface of the manhole 21. Therefore, the reaction force accompanying the propulsion of the propulsion body 1 is transmitted from the propulsion operation section 15 to the propulsion device 3, the base 4, the fixed portion 23 of the base 4, the guide tube 5, and the reaction force receiver 24. . In other words, the reaction force receiver 24 is configured to transmit the reaction force caused by the propulsion of the propelling body 1 to the side surface of the manhole 21, so that the reaction force caused by the propulsion of the propellant 1 is supported by easy means. It has become.

Note that the guide tube 5 is not only configured by a combination of the underground guide 18 and the aerial guide 19 as shown in the above embodiment, but also can be configured by, for example, installing the base 4 directly on the ground and attaching it to the propelling body. When the distance between the propulsion device 3 and the ground is short as in the case of carrying out the propulsion construction in 1, it is also possible to omit the aerial guide 19 and configure the guide tube 5 only with the underground guide 18. In addition, the arrangement of the underground guide 18 is as follows:
It suffices to be at least at a position where the planned propulsion direction is changed at a predetermined depth position different from the driving direction of the propelling body 1 into the ground, and it is naturally possible that a portion thereof does not appear on the ground. It is also conceivable to install it without using the existing manhole 21. Furthermore, as for the method of burying the underground guide 18, in addition to using the propulsion device 3, it is naturally possible to bury it in the ground manually. In addition, the reaction force receiver 24
may be omitted. In short, the arrangement and shape of the guide cylinder 5, the method of burying the underground guide 18, etc. do not matter as long as they can reasonably guide the propellant 1 in a planned propulsion direction that is different from the driving direction that is inclined with respect to the ground.

[Another Embodiment] Various reaction force receiving means other than those shown in the above embodiments can be considered, and some examples will be shown below. The reaction force receiving means shown in FIG. 4 is a plate-shaped reaction force receiving device fixed to the outer surface of the underground part of the guide tube 5, and can be used in situations where there is no existing manhole. That is, the reaction force accompanying the propulsion of the propulsion tube is directly received by the ground via this receiver 24,
You can do it. The reaction force receiving means 24 shown in FIG. 5 has a reaction force receiving device whose middle portion is bent at a substantially right angle when viewed from the side, and is fixed to the exposed portion of the guide tube 5 in the illustrated manhole 21 and one end thereof. the other end of the manhole 2
The reaction force caused by the propulsion of the propulsion pipe can be transmitted from the reaction force receiving device to the side surface of the manhole 21, and the reaction force can be received through this side surface. In the example shown in FIG. 6, instead of a configuration in which a reaction force receiving device is provided as the reaction force receiving means 24, a pile 24a that can be driven into the ground from the ground surface and a pile attached to the outer surface of the underground buried part of the guide tube 5 are used. By driving the pile 24a from the ground surface and passing the driving tip through the locking ring 24b, the locking ring absorbs the reaction force caused by the thrust of the propulsion tube. By penetrating the pile 24b, the reaction force accompanying the thrust of the propulsion pipe is transmitted to the pile 24a through the locking ring 24b, and the pile 24a is supported by the ground through the entire underground part. ing. In the example shown in FIG. 7, the claws are swingable between an upright position protruding from the outer circumferential wall of the guide tube 5, shown by the chain double-dashed line in the figure, and an inverted posture shown in the actual battle along the outer circumferential wall of the guide tube 5. The plurality of shaped members are placed in the guide tube 5 with the free ends facing toward the upper side of the propulsion side.
The reaction force receiving means 24 is configured by being attached around the periphery of the reaction force receiving means 24. In the case of this configuration, when the guide tube 5 is propelled underground using the propulsion device 3 as in the above embodiment, the guide tube 5 is propelled further than the predetermined underground position, After that, it is pulled back to the upper side of the propulsion, and accordingly, the claw-like member is rotated so as to raise it, thereby achieving the above-mentioned standing posture.Therefore, with the free end facing outward, a reaction force is transmitted to the ground, and this It is possible to make the ground absorb the reaction force. Although FIG. 7 shows two sets of reaction force receiving means configured as described above provided along the longitudinal direction of the guide cylinder 5, the number of reaction force receiving means installed is not limited. Although four examples of the reaction force receiving means have been shown above, these are merely representative ones, and of course there may be various structures other than these.

Although reference numerals are written in the claims for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

[Fig. 1] A diagram showing propulsion equipment for the propulsion method according to the present invention.

[Figure 2] Side view of the propellant

[Figure 3] Plan view of the propulsion control unit

[Fig. 4] Side view of the reaction force receiving means of another embodiment

[Figure 5]
Side view of reaction force receiving means of another embodiment

[Fig. 6] Side view of the reaction force receiving means of another embodiment

[Fig. 7] Side view of the reaction force receiving means of another embodiment

[Explanation of symbols]

3 Propulsion device 4 Base 5 Guide tube 10 Propulsion tube 11 Propulsion head 15 Propulsion operation section 24 Reaction force receiving means

Claims (2)

[Claims] Claim 1: A propulsion head (11) for excavation, which is attached to a propulsion tube (10) on the tip side by pressing a plurality of propulsion tubes (10), which are connected to each other in a flexible manner, in the axial direction of the propulsion tubes (10),...
) in a propulsion equipment for a propulsion method, in which a propulsion device (3) for propulsion underground is attached to a base (4) in a posture such that the driving direction is inclined with respect to the ground, and the propulsion direction of the propulsion pipe (10) is A guide tube (5) is provided for changing the driving direction to a scheduled propulsion direction at a predetermined depth position different from the driving direction, and a mounting portion for attaching the guide tube (5) in a detachable manner is attached to the drive direction. The propulsion control section of the device (3) (
15) and the propulsion equipment for the propulsion method provided on the base, respectively. 2. The guide tube (5) is provided with a reaction force receiving means (
24) The propulsion equipment for the propulsion method according to claim 1.