KR102573829B1 - Non-open cut propelled tunneling machine, non-open cut propelled excavating method using the same and , non-open cut complex excavating method having non-open cut propelled excavating method - Google Patents

Abstract

Disclosed is a foreign matter inflow prevention apparatus. The foreign matter inflow prevention apparatus comprises: a cover panel covering a gap part from an upper side of the gap part, extended in a longitudinal direction, and having one side part in a transversal direction coming in contact with a first slab and the other side part in a transversal direction coming in contact with a second slab; and a fixing structure fixing the cover panel on the gap part. The fixing structure includes: a bolt member including a head unit arranged on the cover panel and a body penetrating from the head unit through the cover panel to be extended to a lower side of the cover panel; an extension member having an upper end connected to a lower end of the body to be extended to a lower side of the gap part; a support member arranged from a lower side of the gap part by surrounding the extension member, and arranged on the first slab and the second slab to be supported upwards; a nut member arranged from a lower side of the support member by surrounding the extension member; and an elastic member arranged by being elastically compressed between the support member and the bolt member to upwardly press the support member with an elastic compression force. Therefore, constructability can be excellent.

Description

Non-breakthrough propulsion type drilling equipment, non-breakthrough propulsion type drilling method using the same, and non-breakthrough combined drilling method including non-breakthrough propulsion type drilling method AND , NON-OPEN CUT COMPLEX EXCAVATING METHOD HAVING NON-OPEN CUT PROPELLED EXCAVATING METHOD}

The present application relates to a non-breakthrough propulsion type drilling equipment, a non-breakthrough type propulsion drilling method using the same, and a non-breakthrough type combined drilling method including a non-breakthrough type propulsion type drilling method.

Various construction methods can be used to excavate various pipelines to be buried underground by non-drilling. For example, as an example, the excavator is pushed with a jack from the launch shaft, and at the same time the excavator excavates and moves forward to construct the conduit. There is a type of propulsion work that is done. These propulsion works require excavation equipment, and the types of equipment that can respond to this may need to be diversified according to the size of the pipeline, the length of the tunnel, and the soil quality of the excavation point.

In particular, the type of equipment should be different depending on the soil quality. When the soil quality is rocky, a rock type excavator should be used, and when the soil quality is soft soil or soil, it is a general standard to use a soil type excavator.

However, even if an excavator is selected according to the soil quality, jamming of the conduit occurs due to factors such as the collapse of the bedrock or fractured layer that do not appear during soil investigation during excavation, so that the excavation equipment is stopped in the ground and cannot go anywhere. may occur occasionally.

As a solution to this, it is possible to retrieve the excavator by making a vertical hole on the ground or to retrieve the excavator by excavating backwards from the reach, but if the ground conditions are not good, it can be a very difficult situation to recover. In order to do so, the time and construction costs can also increase enormously,

Therefore, it is necessary to develop a device that can solve the forward excavation to the reaching part in case excavation is no longer possible due to conduit jamming due to complex soil suddenly appearing in the ground.

The background technology of the present application is disclosed in Korean Patent Registration No. 10-1936651.

The present application is intended to solve the above-mentioned problems of the prior art, and even when the excavator cannot be advanced because the conduit does not move, it is possible to advance the excavator and also to construct the conduit. , It is an object of the present invention to provide a non-breakthrough excavation type excavation method using the same, and a non-cutbreakage propulsion type excavation method including a non-excavation excavation type excavation method.

However, the technical problem to be achieved by the embodiments of the present application is not limited to the above technical problems, and other technical problems may exist.

As a technical means for achieving the above technical problem, the non-cutting propulsion type drilling equipment according to an embodiment of the present application has a circumferential rear support with respect to the rear end disposed in the drilling direction of the non-cutting propulsion type drilling equipment. a connection support disposed in front of the rear end so as to be possible; A jack device unit including a plurality of jacks disposed along the circumference in front of the connection support portion so that the circumference is supported backward with respect to the connection support portion, and is provided with a length expandable and contractible in the forward and backward directions; an assembly space forming unit provided to surround the outside of the plurality of jacks and extending backward toward the connection support unit to surround at least a portion of a new conduit assembly space formed between the jack device unit and the connection support unit; and an excavator including an excavator and disposed in front of the jack device and the assembly space forming unit.

In the non-breakthrough propulsion type drilling method using the non-breakthrough propulsion type drilling equipment according to an embodiment of the present application, (a) the plurality of jacks are extended in length to move the drilling equipment forward while switching to a forward pushed length extension state Next, by reducing the length of the plurality of jacks in the length extension state and converting the state to the length reduction state pulled forward, the new conduit assembly between the jack device part and the connection support part or between the jack device part and the immediately new conduit securing space; and (b) constructing a new conduit by assembling segments in the new conduit assembly space.

In the non-breakthrough composite excavation method using the non-breakthrough propulsion type excavation method according to an embodiment of the present application, (a) excavation using the excavator, but placing a shield method corresponding equipment on the side of the launch vertical shaft and the shield method corresponding equipment Excavation using a shield method; And (b) it may include the step of excavating using the non-breakthrough propulsion type excavation method.

The above-described problem solving means are merely exemplary and should not be construed as intended to limit the present disclosure. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description of the invention.

According to the above-described problem solving means of the present application, when the excavator cannot move forward because the conduit does not move due to the surrounding conditions while constructing the conduit by forward excavation in the ground with the excavator, by using the length extension and length reduction of a plurality of jacks, It is possible to build a new conduit in the new conduit assembly space by securing a space for assembling a new conduit between the jack device and the connection support. Accordingly, non-cutting propulsion type drilling equipment that can be prepared for when drilling is no longer possible due to conduit jamming due to complex soil suddenly appearing in the ground, non-cutting propulsion type drilling method using the same, and non-cutting propulsion type A non-breakthrough composite excavation method including an excavation method may be implemented.

In addition, according to the above-described problem solving means of the present application, since the forward excavation of the excavator unit is performed by pushing and pulling the jack, excavation can be performed by replacing the jack when the jack is not advanced due to an abnormality, so the workability can be excellent. .

1 is a schematic cross-sectional view of a non-breakthrough propulsion type drilling equipment according to an embodiment of the present application in which a plurality of jacks are in a reduced length state in which the length of the plurality of jacks is reduced before the length extension state of the plurality of jacks.
Figure 2 is a schematic cross-sectional view of a non-breakthrough propulsion type drilling equipment according to an embodiment of the present application in a length-reduced state in which the lengths of a plurality of jacks are reduced in a length-extended state of a plurality of jacks.
Figure 3 is a schematic diagram of a non-breakthrough propulsion type drilling equipment according to an embodiment of the present application in which the length of the plurality of jacks is reduced in the length extension state of the plurality of jacks and the new conduit is built in the new conduit assembly space. is a cross section.
Figure 4 (a) is a cross-sectional view AA of Figure 1, Figure 4 (b) is a cross-sectional view BB of Figure 1, Figure 4 (c) is a cross-sectional view CC of Figure 2, Figure 4 (d) is a 2 is the DD section.
5 and 6 are schematic flow charts of a non-breakthrough propulsion type excavation method using a non-breakthrough type propulsion excavation equipment according to an embodiment of the present application.
Figure 7 (a) is a schematic plan view of a plurality of backflow prevention devices of the non-cutting propulsion type drilling equipment according to an embodiment of the present application, Figure 6 (b) is a non-cutting propulsion type according to an embodiment of the present application It is a conceptual diagram showing the deformation of the brush part and the plurality of stacking units of the backflow prevention device of the excavation equipment when the lubricant acts on the front, as viewed from the rear.
Figure 8 (a) is a schematic front view showing assembling the segment of the new conduit of the non-cut propulsion type excavation equipment according to an embodiment of the present application, as viewed from the front, Figure 8 (b) is one of the present application In order to explain that the new conduit of the non-cut propulsion type drilling equipment according to the embodiment is fastened with the immediately preceding new conduit, it is a conceptual diagram showing the new conduit and the immediately preceding new conduit partially developed along the circumferential direction.
9(a) is a conceptual diagram illustrating that a fastening member of a new conduit of a non-opening propulsion type drilling equipment according to an embodiment of the present application is inserted into a fastening hole of a new conduit immediately before and the belt unit for forming a female screw is deformed, 9(b) is a MM cross-sectional view and a NN cross-sectional view of FIG. 9(a).
FIG. 10 is a conceptual diagram illustrating an enlarged portion of FIG. 3 to describe a first support part and a second support part of a non-cutting propulsion type excavation equipment according to an embodiment of the present disclosure.
11 is a conceptual diagram illustrating that a jack of a non-cutting propulsion type drilling equipment is connected to an individual hydraulic line according to an embodiment of the present disclosure.

Hereinafter, embodiments of the present application will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. And in order to clearly describe the present application in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout this specification, when a part is said to be "connected" to another part, this includes not only the case of being "directly connected" but also the case of being "electrically connected" with another element in between. do.

Throughout the present specification, when a member is referred to as being “on,” “above,” “on top of,” “below,” “below,” or “below” another member, this means that a member is located in relation to another member. This includes not only the case of contact but also the case of another member between the two members.

Throughout the present specification, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

For reference, terms related to direction or position (upper, upper, lower, lower, front, front, front, rear, rear, rear, etc.) in the description of the embodiments of the present application are the arrangement of each component shown in the drawings. It is set based on status. For example, when looking at FIGS. 1 to 3, the 12 o'clock direction is generally the upper side, the generally 12 o'clock direction is the upper part, the 6 o'clock direction is generally the lower side, the 6 o'clock direction is generally the lower part, In general, the 9 o'clock direction is the front, the generally directed end toward the 9 o'clock direction is the front end, the generally directed portion toward the 9 o'clock direction is the front end, the generally 3 o'clock direction is the rear end, the generally end toward the 3 o'clock direction is the rear end, Overall, the part facing the 3 o'clock direction may be the rear end.

The present application relates to a non-breakthrough propulsion type drilling equipment, a non-breakthrough type propulsion drilling method using the same, and a non-breakthrough type combined drilling method including a non-breakthrough type propulsion type drilling method.

First, non-cutting propulsion excavation equipment (hereinafter referred to as 'this equipment') according to an embodiment of the present application will be described.

Referring to Figures 1 to 3 and Figure 4 (d), this equipment includes a connection support (1). The connection support part 1 is disposed in front of the rear end 91 so that the circumference is rearward supported with respect to the rear end 91 disposed in the rear of the excavation direction of the equipment.

For example, when excavation is performed from the beginning by the non-breakthrough propulsion-type excavation method according to an embodiment of the present application described later, the rear end 91 is an initial structure (initial block or initial conduit) provided on the side of the launch upright. can be As another example, when the shield method is converted to the non-breakthrough propulsion type excavation method according to an embodiment of the present application, the rear end 91 may be a conduit corresponding to the shield method (existing conduit) built by the shield method.

Also, referring to FIGS. 1 to 3 , passages may be formed in the front and rear directions at the rear end 91 . In addition, a passage connected to the passage of the rear end 91 may be formed in the connection support part 1 in the forward and backward directions. Through the passage continuously formed in this way, the segment 71 of the new conduit 7 to be described later can be transported to the front of the connection support 1. Transport of the segments 91 may be performed by manpower. At this time, a rail structure may be used to transport the segment 91 . Alternatively, transport of the segment 91 may be performed by an automatic transport device.

In addition, the connection support 1 may be made of steel.

Also, referring to FIG. 1 , the diameter (width) of the connection support part 1 may be set smaller than the diameter (width) of the rear end part 91 . This is because the assembly space forming part 3 extends on the outer circumferential side of the connection support part 1 (the assembly space formation part 3 can cover at least a part of the connection support part 1), so that the connection support part 1 is described later. This is because a space for inserting the assembly space forming part 3 to be supported by the second support part 6b or the first support part 6a and the second support part 6b can be additionally secured.

That is, referring to FIGS. 1 to 3, the connection support part 1 is a connecting member made of steel installed for connection with a conduit newly established at the rear end 91, and is between the excavation device part 4 and the rear end 91. can be placed in

Also, referring to FIGS. 1 to 3 , the equipment includes a jack device 2 . The jack device unit 2 is disposed along the circumference in front of the connection support unit 1 so that the circumference is supported backward with respect to the connection support unit 1, but a plurality of jacks provided capable of length expansion and contraction (extension) in the forward and backward directions ( 21). The jack 21 can make a linear stroke in the fore-and-aft direction. For example, the jack 21 may include a first cylinder 211 and a second cylinder 212 that moves forward and backward relative to the first cylinder 211 . The cross section of the first cylinder 211 may be larger than that of the second cylinder 212 . Since this jack 21 is obvious to those skilled in the art, a detailed description thereof will be omitted.

Referring to FIGS. 1 to 3 and 4(b) , the jack 21 may be disposed so that the front end of the first cylinder 211 is positioned in front of the front end of the second cylinder 212 . This is because, since the second cylinder 212 moves in the forward and backward directions relative to the first cylinder 211, a space 98 for assembling a new conduit described later according to the movement of the second cylinder 212 can be secured. am. Also, the jack device 2 may include a jack press wheel 22 . The jack press wheel 22 may have a ring shape in which a through portion communicating with the aforementioned passage is formed. Also, the rear end of the second cylinder 212 may be fixed to the jack pressure wheel 22 . Accordingly, when the second cylinder 212 is pulled toward the first cylinder 211 (moves forward), the jack pressure wheel 22 can be moved forward.

In addition, referring to Figures 1 to 3 and Figure 4 (b), this equipment includes an assembly space forming unit (3). The assembly space forming part 3 is provided to surround the outside of the plurality of jacks 21 . In addition, the assembly space forming part 3 extends rearward toward the connection support part 1 and at least part of the new conduit assembly spaces 98 and 92 formed between the jack device part 2 and the connection support part 1 provided to cover The assembly space forming unit 3 may be a cylindrical structure made to prevent collapse of earth and sand in the ground. In addition, the assembly space forming unit 3 may be provided with pushing and pulling by a jack 21 so as to secure a space for constructing a conduit therein. The assembly space forming unit 3 may be a circular steel cylinder.

In addition, the assembly space forming part 3 may be provided on the front circumferential side of the jack device part 2 so as to fix the front ends of the plurality of jacks 21 . In this case, the front end of the first cylinder 211 may be fixed to the assembly space forming part 3 . Alternatively, the front end of the plurality of first cylinders 211 may be fixed to the excavator unit 4.

In addition, a jack fixing support 31 may be provided in the assembly space forming unit 3 . The jack fixing support 31 may fix the first cylinder 211 to the assembly space forming part 3 . For example, the jack fixing support 31 may be provided in a form surrounding the jack 21 and fixed to the assembly space forming part 3 .

Referring to (a) to (c) of FIG. 5 , the jack device unit 2 may be detachably provided from the connection support unit 1 . In addition, in the new conduit assembly space 98, the length of the plurality of jacks 21 is extended and the length of the plurality of jacks 21 is extended and pushed forward (see FIG. 5 (b)), the length of the plurality of jacks is reduced and the length is pulled forward. When the state is converted to the length reduction state (see (c) of FIG. 5d), it may be a space formed between the jack device unit 2 and the connection support unit 1.

In other words, referring to (b) of FIG. 5, the plurality of jacks 21 may allow the second cylinder 212 to move relatively backward with respect to the first cylinder 211, and at this time, the second cylinder 212 Since the jack pressure wheel 22 having the rear end fixed is supported by the connection support part 1, the second cylinder 212 can move backward while being supported by the connection support part 1, and thus, the first cylinder 211 is pushed forward and the length of the plurality of jacks 21 can be extended (length extended state). In this length extension state, referring to FIG. 5(c), the second cylinder 212 is pulled toward the first cylinder 211 side (forward) and the length can be reduced (length reduction state), and accordingly , A space may be formed between the jack press wheel 22 and the connection support 1, and this space may be a space 98 for assembling a new conduit. In other words, the length of the plurality of jacks 21 increased (extended) is reduced to the front side and the jack 21 (the second cylinder 212) can be recovered to the front side, and accordingly, the new conduit assembly space 98 ) can be formed.

In addition, the plurality of jacks 21 may be provided to be extended and reduced in length by a length capable of securing a space 98 for assembling a new conduit through a state transition. The space 98 for assembling a new conduit may have a width in the front-back direction to be formed in a size in which the new conduit 7 can be installed in the space for assembling a new conduit. To this end, the plurality of jacks, the plurality of jacks 21 may be provided to be extended and reduced in length by a length capable of securing a space 98 for assembling a new conduit through a state transition.

In addition, the assembly space forming part 3 extends rearward from the new conduit assembly space 98 and extends to the outer periphery of the connection support 1 located rearward than the new conduit assembly space 98 or of the new conduit 7 just before. It may be provided to cover a part of the outer circumference. For example, referring to (a) to (c) of FIG. 5 , in a state in which the jack device 2 is rear supported by the connection support 1, a new conduit assembly is performed by switching the state of the plurality of jacks 21. When the space 98 is formed, the assembly space forming part 3 may cover a part of the outer circumference of the connection support part 1 . In addition, referring to FIGS. 5 (d) to 6 (f), in a state in which the jack device unit 2 is supported rearward in the immediately preceding new conduit 7, through a state transition of a plurality of jacks 21 When the new conduit assembly space 98 is formed, the assembly space forming unit 3 may wrap a part of the outer circumference of the new conduit 7 immediately before.

As another example, the front ends of the plurality of jacks may be fixed to the excavator unit.

Also, referring to FIGS. 1 to 3 , the equipment includes a jack unit 2 and an excavator unit 4 disposed forward of the assembly space forming unit 3 . The excavator unit 4 includes an excavator. Excavators are obvious to those skilled in the art, so detailed descriptions are omitted.

In addition, referring to FIGS. 1 to 3 and FIG. 4 (a), the excavator unit 4 is a lubricant injection device 8 provided behind the excavator so that the lubricant can be injected toward the outer peripheral surface 99 of underground excavation. can include The lubricant injection device 8 can inject a semi-solid lubricant into the outer circumferential front surface of the conduit so that the ground does not collapse during over-excavation after excavation. For example, when the diameter (width) of the connecting support part 1 or the diameter (width) of the new conduit 7 is smaller than the diameter (width) of the rear end 91 or the diameter (width) of the assembly space forming part 3 Therefore, the lubricant injection device 8 is a semi-solid type on the outer circumferential front surface of the conduit (between the connection support 1 and the outer circumferential surface of the underground excavation or between the new conduit 7 and the outer circumferential surface of the underground excavation) so that the ground does not collapse in over-excavation after excavation. Lubricants can be injected. In addition, the lubricant injection device 8 may include a lubricant injection valve 81 . The injection of the lubricant may be performed or the injection of the lubricant may be stopped by turning on/off of the lubricant injection valve 81 .

The lubricant may reduce friction during propulsion and even prevent sinkholes, and may be a gel film filler. Specifically, the lubricant may be a gel-type filler with a smooth derm liquid component from the surface to the inside. It is possible to maintain long-term friction reduction in not only aquifers but also in anhydrous layers (stratum where there is no groundwater and lubricants are absorbed and dispersed into the ground), which has been considered difficult to construct, and prevents the occurrence of sinkholes by suppressing collapse of the outer circumferential surface of the propelled pipe. can do.

In addition, referring to FIGS. 1 to 3, the excavator unit 4 is an excavator and a lubricant injection device to prevent the lubricant injected into the underground excavation outer circumferential surface 99 by the lubricant injection device 8 from flowing back to the excavator. (8) may include a lubricant backflow prevention device 5 provided to block the space between them. The lubricant backflow prevention device 5 may be provided to block between the outer circumferential surface of the underground excavation 99 and the outer circumferential surface of the lubricant injection device 8. Referring to (a) of FIG. 7 , a plurality of lubricant backflow prevention devices 5 may be provided along the circumference of the lubricant injection device 8 .

1 and 7, the lubricant backflow prevention device 5 may include a brush portion in which a plurality of brushes 54 are disposed obliquely extending backward and outward to prevent the lubricant injected toward the outer circumferential surface of the underground excavation from flowing backward. can The brush 54 may be made of a material containing iron. For example, brush 54 may be an iron brush.

In addition, referring to FIGS. 1 and 7(b) , the plurality of brushes 54 may be arranged and extended so that a closed state is induced while some of the lubricant is inserted between the brushes 54 .

In addition, referring to FIGS. 1 and 7 , the lubricant backflow prevention device 5 includes a plurality of stacking units 51 extending obliquely backward and arranged at intervals in the front-rear direction, radial direction, or oblique direction. can do. The plurality of overlapping units 51 may be provided in multiple layers so that the plurality of brushes 54 are divided and disposed at intervals between the overlapping units 51 .

The plurality of overlapping units 51 are formed by a plurality of overlapping units that are larger than the distance between the front ends of the plurality of overlapping units 51 so that a deformation that further widens the gap between the plurality of overlapping units 51 is induced when the lubricant acts on the front side. The interval between the rear end sides of 51 is wider, but overlapping between the plurality of brushes 54 may be provided to prevent the plurality of brushes 54 from being bent forward and turned over.

The plurality of stacking units 51 may be respectively extended and arranged to prevent or reduce the plurality of brushes 54 from being bent forward and being turned over or scattered when the lubricant applies a forward pressure. In addition, in order to further deepen the occlusion effect (action), referring to FIG. When the pressure is applied forward, it is slightly deformed while maintaining the forward state, thereby increasing the blocking effect for the corresponding gap (the gap formed between the underground excavation outer circumferential surface 99 and the present equipment).

The overlapping unit 51 may be made of a mesh fiber membrane made of rubber and fiber. In addition, referring to FIG. 7 , a plurality of overlapping units 51 may be provided and arranged along the circumferential direction of the equipment. The plurality of overlapping units 511 may be provided to have an overlapping amount that partially overlaps (overlaps, overlaps) each other in the circumferential direction. The overlapping amount may be set to prevent gaps from being formed between the plurality of overlapping units 511 when the plurality of overlapping units 511 spread in the circumferential direction when deformation occurs between the plurality of overlapping units 51. .

Accordingly, referring to (b) of FIG. 7, when the lubricant is injected during propulsion, the lubricant may enter between the gaps of the brush 54, which is an iron brush, and in this case, the interval between the brushes 54 widens and the entire brush (54) expands (blocking effect may increase) and serves to block the overbend, so that the lubricant can be prevented from flowing back to the head side (excavator) (head of the propulsion machine) of this equipment. In addition, when the lubricant is injected, pressure can be applied so that it can be pushed toward the rear propellant tube better when "J" is inserted.

In addition, as described above, referring to FIGS. 1 and 7, the iron brush is overlapped with a mesh fiber film (layering unit 51) made of rubber and fiber on the outer surface of the iron brush (brush 54) When the iron brush expands, it can be wrapped around to prevent it from being overturned and scattered.

In addition, the lubricant backflow prevention device 5 may include a fixing part 53 for fixing the brush part. At this time, the stacking unit 51 may be fixed to the fixing part 53 together with the brush part.

In addition, referring to FIG. 1, the fixing part 53 may be a housing opened to the rear, and the front end of the brush part and the plurality of stacking units 51 is attached to the opening of the fixing part 53 so that the rear end protrudes rearward. It may be provided in an inserted form. In addition, the brush unit and the plurality of stacking units 51 may have front ends coupled to each other.

In addition, referring to FIG. 1, the brush 54 should be replaced at the next propulsion after being inflated and used once. An insertion hole opened up and down is formed, and the one located on the outermost side of the brush unit and the overlapping unit 51 (for reference, in FIG. 1, the overlapping unit 51 is shown as being located on the outermost side), the insertion port from the bottom A protruding portion 52 may be formed that is inserted upward and is constrained not to be separated in the front-rear direction after upward insertion. The protruding portion 52 may have a shape in which the cross section decreases toward the upper side. During removal, when the protruding portion 52 is pressed downward, at least a portion of the front end of the brush portion or the stacking unit 51 is compressed, and the protruding portion 52 is moved to the lower side of the fixing part 53, and the brush part and the stacking unit 51 and the protruding part 52 can be moved to the rear and removed, and when mounted, the brush part or the front end of the stacking unit 51 When at least a part is compressed and the protruding part 52, the brush part, and the plurality of overlapping units 51 are inserted into the opening, and the protruding part 52 is positioned below the insertion hole, the brush part or overlapping unit 51 in a compressed state At least a portion of is elastically restored and protrudes upward of the insertion port, and coupling may be made.

In addition, as described above, a plurality of lubricant backflow prevention devices 5 may be provided along the circumferential direction of the lubricant injection device 8. ), the overlapping unit 51 close to the adjacent lubricant backflow prevention device 5 may overlap the overlapping unit 51 close thereto of the adjacent lubricant backflow prevention device 5. In addition, at least a portion of the brush portion of each of the plurality of lubricant backflow prevention devices 5 may overlap with at least a portion of the brush portion of the lubricant backflow prevention device 5 adjacent to each other. Accordingly, the occlusion effect can be greatly secured.

In addition, referring to FIG. 1, the lubricant backflow prevention device 5 is installed at the rear end of the assembly space forming unit 3 so that the lubricant does not flow forward through the space between the assembly space forming unit 3 and the outer circumferential surface 99 excavated in the ground. It may be provided on the outer circumferential surface of the part. Since this corresponds to the lubricant backflow prevention device 5 described above, a detailed description thereof will be omitted.

In addition, referring to FIGS. 1 to 3, this equipment may include a new conduit 7. Referring to FIG. 8 , the new conduit 7 may include a plurality of segments 71 interconnected in its circumferential direction. The segment 71 may be a material for assembling a conduit in the form of a block, may be a steel material, and may be made of any material as long as it is possible to assemble as well as a steel material.

Referring to (a) of FIG. 8 , the segments 71 other than the first segment 71a among the plurality of segments 71 may be engaged with each other in the circumferential direction. For example, the remaining segments 71 may be coupled with irregularities. Specifically, the remaining segment 71 may have a protrusion 74 protruding in one direction on one surface facing one direction of the circumferential direction, and a segment 71 adjacent to the other side on the other surface facing the other direction of the circumferential direction. A depression into which the protrusion 74 is inserted may be formed. The remaining segments 71 may be coupled to each other by the uneven coupling of the protrusion 74 and the depression.

Referring to (a) of FIG. 8 , the first segment 71a may be fitted to adjacent segments 71 on one side and the other side of the circumferential direction, respectively. For example, the side facing the first segment 71 of each of the segments 71 adjacent to one side and the segments 71 adjacent to the other side of the first segment 71a is fitted with the first segment 71a. It can be formed as a possible inclined surface. For example, the side facing the first segment 71 of each of the segments 71 neighboring on one side and the segments 71 neighboring on the other side is the segment 71 neighboring on one side and the segment 71 neighboring on the other side. The distance between them may be formed so that the radially inner distance is not narrower than the radially outer distance of the new conduit 7. In other words, the surface facing the first segment 71 of each of the segments 71 neighboring on one side and the segments 71 neighboring on the other side is the segment 71 neighboring on one side and the segment 71 on the other side. Intervals may be equally formed in the inner and outer sides in the radial direction, or may be formed to become narrower toward the outer side in the radial direction. In addition, the side of the first segment 71a facing the neighboring segment 71 on one side and the side facing the neighboring segment 71 on the other side, respectively, are adjacent to the segment 71 on one side and the segment 71 on the other side. ) may be an inclined surface corresponding to contact with an inclined surface of a surface facing each of the first segments 71 .

Referring to (a) of FIG. 8, in this new conduit 7, the remaining segments 71 except for the first segment 71a are coupled to each other in a concave-convex coupling, and the first segment 71a and the other segments 71 Since it is coupled with a fitting coupling (inserted from the inside to the outside of the new conduit 7 and can be fitted), the new conduit 7 can be bolted-free.

At least some of the plurality of segments 71 may be manufactured in the same size, for example, the plurality of segments 71 may be equally divided and manufactured.

In addition, referring to (b) of FIG. 8, the new conduit 7 may be bolted to the connection support 1 or the new conduit 7 immediately adjacent to the rear.

For example, referring to FIGS. 8 and 9, at least one of the plurality of segments 71 of the new conduit 7 protrudes in one direction on one surface and a fastening member 72 having a male thread formed on the outer surface is formed, A fastening hole 73 into which the fastening member 72 of the neighboring new conduit 7 in the other direction is inserted may be formed on the other surface.

For example, here, one direction may be backward and the other direction may be forward. Or, as another example, one direction may be forward and the other direction may be backward.

In addition, referring to FIG. 9, on the inner surface of the fastening hole 73, a belt unit 731 for forming female screws having a plurality of protruding members arranged along the circumferential direction and protruding inward, but not connected to each other so as to be individually deformed. can be formed. A plurality of belt units 731 for forming female threads may be formed in a depth direction of the fastening hole 73 .

Referring to (a) of FIG. 9 , when the fastening member 72 is inserted, the plurality of protruding members are deformed to individually correspond to the male threaded lines of the fastening member 72 and can be screwed into the fastening member 72. there is.

Referring to (a) of FIG. 9 , the fact that the plurality of protruding members individually correspond to the male threaded lines means that the plurality of belt units 731 are inserted into each of the plurality of male threaded lines of the fastening member 72 and fastened by the screws. In the process of deforming each of the plurality of protruding members of the plurality of belt units 731, the plurality of protruding members are individually deformed according to the position of the male threaded line into which each member is inserted and the shape of a part of the male threaded line to be inserted. that can mean

Referring to (b) of FIG. 9 , the belt unit 731 for forming female threads may be provided in a form in which a cut portion is formed between a plurality of protruding members by cutting a belt-shaped circumferential member in a radial direction. It is not limited to this. For example, the strip unit 731 may be formed in a form in which a plurality of protruding members are provided at intervals. In addition, the belt unit 731 for female screw formation may be formed at intervals in the depth direction of the fastening hole 73 .

Also, referring to (a) of FIG. 9 , the male thread of the fastening member 72 may extend in a spiral shape. According to this, the protruding members that are individually uninterlocked with each other in the circumferential direction and arranged in multiple layers in the depth direction are finely rotated and deformed with respect to the spiral male thread to find the appropriate position better than when the male thread is not in the form of a spiral. I can go.

In this way, the assembly and coupling of the new conduit 7 with the neighboring new conduit 7 can be performed by inserting the joint bolt (fastening member 72) once, so that bolt nut fastening is not required. In addition, as described above, even when assembling the new conduit 7, the remaining segments 71 are fastened when pushed in by the irregularities of the joint, and the first segment 71 is fitted, so bolt and nut fastening may not be necessary. there is. In addition, since the first segment 71 is fitted and coupled, the operation may be simple.

In addition, referring to (b) of FIG. 8, one or more of the plurality of segments 71 is connected to the lubricant injection device 8, and an outlet 77 through which the lubricant is discharged to the outside of the new conduit 7 is formed. It can be. Accordingly, the lubricant injection device 8 is connected (attached) to the segment 71, and the lubricant is discharged through the discharge port 77, so that after the excavation is completed, the backfill injection into the overexcavation part is possible to prevent sinkholes. can For reference, the lubricant may be discharged from the outlet 77 of the new conduit 7 located at the rear of the assembly space forming part 3 so that the lubricant is discharged between the present device and the underground excavation outer circumferential surface 99. In addition, this may be to prevent lubricant discharge from the inside of the assembly space forming unit 3 .

Also, referring to FIGS. 1 to 3 and 10 , the equipment may include a first support part 6a. The first support part 6a may protrude from the inner surface of the assembly space forming part 3 toward the inside of the assembly space forming part 3 in the radial direction. Referring to (c) of FIG. 4 , a plurality of first support parts 6a may be formed in the circumferential direction of the assembly space forming part 3 .

In addition, referring to FIGS. 1 to 3 and 10 , the equipment may include a second support part 6b. The second support portion 6b may protrude from the inner surface of the assembly space forming portion 3 at the rear of the first support portion 6a toward the inside of the assembly space forming portion 3 in the radial direction. A plurality of second support parts 6b may be formed in the circumferential direction of the assembly space forming part 3 . Also, referring to FIG. 10 , the second support portion 6b may be formed in a plurality of rows in the front-back direction. For example, the second support portion 6b may be formed in two rows. 5(a) and 5(d), the first support part 6a extends the length of the plurality of jacks 21 to secure a new conduit assembly space 98 and pushes it forward. In the length reduction state in which the plurality of jacks 21 are reduced in length before the losing length expansion state, support the immediately new conduit or connection support (1) (previous new conduit or connection support (1) to the assembly space forming unit (3) ) may be provided to support). In addition, referring to Figure 5 (d) and Figure 6 (g), the first support portion (6a) is a plurality of jacks 21 are reduced in length in the length extension state and converted to a length reduction state pulled forward, It may be provided to support (support the segment 71 with respect to the assembly space forming unit 3) the segment 71 for the new conduit construction disposed in the formed new conduit assembly space 98.

Since the outer cylinder of the assembly space forming part 3 is larger than the outer cylinder of the new conduit 7 or the outer cylinder of the connection support part 1 during assembly of the segment 71, the first support part 6a has vertical deflection and (especially It is possible to hold the straight line of the new conduit (7) by preventing the deflection downward) and the bias to the left and right. In other words, the first support (6a) is the segment 71 for the construction of the new conduit (7), the vertical deflection of the immediately preceding new conduit (7) or the connection support (1) (especially downward deflection), left and right It can hold a straight line by preventing bias. As such, the first support portion 6a may serve as a posture support and support support.

That is, the first support portion 6a supports (supports hard) the segment 71 to be installed with great strength (support) to secure stability, but through one-point support, the installation of the segment 71 is easy can do. For example, when connecting the segment 71 and the neighboring new conduit (previous new conduit) 7, when the segment 71 is finely rotated (moving in the circumferential direction of the new conduit 7), for one-point support Fine rotation is easily possible. That is, the first support part 6a maintains the posture of the configuration it supports, but can enable fine rotation with one-point support.

In addition, referring to FIGS. 5(a) and 5(d), the second support part 6b has a plurality of jacks 21 extended in length and a plurality of jacks ( 21) can support the newly installed conduit 7 or the connection support 1 in the reduced length state. For example, referring to (a) of FIG. 5, when the new conduit 7 is not built between the jack device 2 and the connection support 1, the second support 6b includes a plurality of jacks ( 21) can support the connection support part 1 in a reduced length state in which the length of the plurality of jacks 21 is reduced before the length extension state in which the length is extended and pushed forward. In addition, referring to (d) of FIG. 5, when a new conduit 7 is built between the jack device 2 and the connection support 1, the second support 6b has a plurality of jacks 21 A new conduit located at the forefront of the new conduits (7) built in the length reduction state in which the length of the plurality of jacks (21) is reduced before the length extension state pushed forward ((the new conduit (7) )(7).

In addition, referring to FIG. 5 (b) and FIG. 6 (f), the second support part (6b) is the length of the plurality of jacks (21) is extended and the newly installed conduit (7) in the extended state pushed forward. ) or the connection support 1 can be supported. For example, referring to (b) of FIG. 5, when the new conduit 7 is not built between the jack device 2 and the connection support 1, the second support 6b includes a plurality of jacks ( 21) is extended in length and can support the connection support 1 in the extended state of the length pushed forward. In addition, referring to (f) of FIG. 6, when a new conduit 7 is built between the jack device 2 and the connection support 1, the second support 6b has a plurality of jacks 21 The length is extended and it is possible to support the new conduit (immediately new conduit 7) (7) located at the forefront of the new conduit (7) built in the forward extended length state.

In addition, referring to FIG. 5 (c) and FIG. 6 (g), the second support portion (6b) is a plurality of jacks (21) in a length extended state in which the length of the plurality of jacks (21) is pushed forward. ) It is possible to support the newly installed conduit 7 or the connection support 1 in the reduced length state of the reduced length. For example, referring to (c) of FIG. 5, when the new conduit 7 is not built between the jack device 2 and the connection support 1, the second support 6b includes a plurality of jacks ( 21) can support the connection support 1 when the length is extended and the length of the plurality of jacks 21 is reduced in the length extension state pushed forward. In addition, referring to FIG. 6 (g), when a new conduit 7 is built between the jack device 2 and the connection support 1, the second support 6b has a plurality of jacks 21 New conduit located at the forefront of the new conduit (7) built when the length is extended and the length of the plurality of jacks (21) is reduced in the length extended state pushed forward (the new conduit (7) just before) (7) can be supported.

In addition, the second support portion 6b may play a role of preventing penetration of underground water or lubricant into the assembly space forming portion 3 .

In addition, the second support portion 6b may support the previously installed configuration (connecting support portion 1 or the immediately preceding new conduit 7) at two points, but may elastically support it. The second support portion 6b may support the assembly space forming portion 3 ) The internal structure can be supported more stably by two points, but it can be supported more elastically by considering the volatility.

Specifically, when supporting the segment 71, the first support portion 6a is provided to support the segment 71 at one point, but is provided with a material and standard that supports the segment 71 relatively less elastically than the second support portion 6b. can In addition, the second support portion 6b is provided to support the connection support portion 1 or the newly installed conduit 7 at two points, but may be provided with a material and standard that supports relatively more elastically.

For example, the first support portion 6a may be provided in a row in the front-rear direction to support the segment 71 at one point. At this time, as described above, a plurality of first support parts 6a may be provided along the circumferential direction of the assembly space forming part 3, or, as another example, one first support part 6a forms an assembly space. It may be provided in a ring shape extending along the circumferential direction of the portion 3. In addition, the second support portion 6b is provided in a plurality of rows (eg, two rows) in the front-rear direction to support the segment 71 at multiple points (eg, support at two points). At this time, as described above, the second support portion 6b may be provided in plurality along the circumferential direction of the assembly space forming portion 3 to form one row, or, as another example, the second support portion 6b may One may be provided in a ring shape extending along the circumferential direction of the assembly space forming unit 3 to form one row.

For example, the second support portion 6b may be provided to more elastically support the assembly space forming portion 3 compared to the first support portion 6a. In other words, the first support portion 6a may be harder (strength may be greater) than the second support portion 6a.

For example, referring to FIG. 10 , a hole for securing elasticity may be formed in the second support part 6b. For example, the hole for securing elasticity may be formed inside the second support part 6b. Accordingly, the second support portion 6b may have a cross section in which a hole for securing elasticity is formed. In this case, the first support portion 6a has a cross section in which the hole for securing elasticity is not formed, and may have less elasticity (can be more rigid (can have greater strength)) than the second support portion 6b. Alternatively, as another example, the modulus of elasticity of the material of the second support portion 6b is such that the second support portion 6b supports the assembly space forming portion 3 more elastically than the first support portion 6a. It may be greater than the modulus of elasticity of the material of 6a). In this way, the second support portion 6b may be provided with greater elasticity than the first support portion 6a in consideration of the material of the second support portion 6b, the material of the first support portion 6a, the size and thickness of the hole, and the like. can

According to the foregoing, the first support portion 6a has a cross section in which no hole for securing resilience is formed, so that it may be harder than the second support portion 6b, and instead, in the front-back direction (the longitudinal direction of the assembly space forming part 3) 1 It can be provided in rows, so that each segment 71 can be fine-tuned by rotating around the first support part 6a in one row as an axis. At this time, since the first support portion 6a is harder than the second support portion 6b, when the first support portion 6a is provided in a plurality of rows (eg, two rows), the assembly space forming portion 3 of the segment 71 ) Since it may be difficult to rotate in the circumferential direction, it is preferable that the first support portion 6a is provided in one row in the front-back direction.

In addition, the second support portion 6b may serve to prevent penetration of underground water or lubricant into the assembly space forming portion 3, so that it may be provided in a plurality of rows (ie, two rows) in the front-back direction.

In addition, since the second support portion 6b can support the new conduit 7 or the rear end portion 91 that has already been disposed, the second support portion 6b has a cross section in which a hole for securing elasticity is formed, and instead moves forward and backward. It can be provided in two rows. This is the first support part 6a when finely adjusting the segment 71 while rotating it when assembling the segment 71 of the new conduit 7 or when assembling (connecting) the new conduit 7 and the previous new conduit 7. ) has low elasticity (with high strength) and multi-point support may make it difficult to achieve matching. Accordingly, the first support portion 6a preferably has one-point support, and the second support portion 6b secures greater elasticity than the first support portion 6a that supports one point instead of multi-point support such as two-point support. Since the second support part 6b supports the assembly space forming part 3 even when the jack 21 is stretched and contracted, the assembly space forming part 3 is installed at two points more stably. While supporting it, it secured great elasticity (softened it) so that it could respond well to volatility.

That is, the second support portion 6b may be provided to support the assembly space forming portion 3 relatively more elastically than the first support portion 6a. At this time, the second support portion 6b is provided at the rear of the first support portion 6a, that is, at the rear end of the assembly space forming portion 3, so that the length of the jack 21 is extended and the length of the jack 21 is extended. Two points of the assembly space forming part 3 in both the length reduction state in which the length of the plurality of jacks is reduced before the state and the length reduction state in which the length of the jack jack 21 is reduced and the length of the plurality of jacks is reduced in the length extension state of the jack jack 21 pulled forward. When the above support is applied and the new segment 7 is coupled in the forward and backward directions, the stability of the newly installed conduit 7 (the stability of the segment 71) is given as two-point support, but not too fixed at the time of the two-point support. It may have greater elasticity than the first support portion 6a.

In addition, the first support portion 6a has a smaller elasticity than the second support portion 6b so that the segment 71 of the new conduit 7 in assembly process is well supported, and the first support portion 6a has an angle around rubber A. It is possible to finely adjust the connection to the previous segment 7 easily.

For example, the first support portion 6a may be made of a material containing rubber, for example, solid rubber, and the second support portion 6b may be made of a material containing rubber.

In addition, referring to FIG. 10, the inner surface of the assembly space forming part 3 is provided on the front and rear sides of the first support part 6a to restrain at least a part of the front-and-back direction deformation of the first support part 6a. A stopper 63 may be provided. This fixture 63 may also be referred to as a release prevention fixture. The fixing body 63 may be provided along the circumferential direction of the assembly space forming part 3 on the inner surface of the assembly space forming part 3 . This fixture 63 may be made of steel, for example, a round bar, and may be connected to the assembly space forming part 3 by welding. In addition, the distance between the fixing body 63 provided at the front of the first support portion 6a and the fixing body 63 provided at the rear of the first support portion 6a is the variation of the forward and backward deformation of the first support portion 6a. It can be set to be able to restrain at least a part, that is, it can be set to the maximum width or less in the front-back direction of the first support part 6a while enabling the arrangement of the first support part 6a, preferably. , can be set to less than the maximum width in the front-back direction of the first support 6a while enabling the disposition of the first support 6a.

In addition, referring to FIG. 10, the inner surface of the assembly space forming part 3 is provided on the front and rear sides of the second support part 6b to restrain at least a part of the deformation of the second support part 6b in the front-back direction. A stopper 64 may be provided. This fixing body 64 may also be referred to as a release prevention fixing member. The fixing body 64 may be provided along the circumferential direction of the assembly space forming part 3 on the inner surface of the assembly space forming part 3 . At this time, since the second support portion 6b may be provided in a plurality of rows in the front-back direction, the fixing body 64 may be provided for each of the plurality of rows. For example, when two second supports 6b are provided, they may be provided in front of the two second supports 6b, between the two second supports 6b, and behind the two second supports 6b. can This fixture 64 may be made of steel, for example, a round bar, and may be connected to the assembly space forming part 3 by welding. In addition, the distance between the fixing body 43 provided in front of the second support portion 6b and the fixing body 64 provided at the rear of the second support portion 6b is proportional to the front-back deformation of the second support portion 6b. It can be set to restrain at least a part, for example, when two second supports 6b are provided, the fixing body 64 disposed in front of the two second supports 6b and the two second supports 6b. 2 Interval between the fixing body 64 provided between the support parts 6b and the height provided at the rear of the fixing body 64 provided between the two second support parts 6b and the two second support parts 6b Each of the intervals between the bodies 64 can be set to a maximum width of the second support 6b in the front-back direction or less while enabling the disposition of the second support 6b, and preferably, the second support 6b ) can be set to less than the maximum width in the front-back direction of the second support portion 6b while enabling the disposition of the second support portion 6b.

In addition, referring to FIG. 11 , the plurality of jacks 21 may have individual hydraulic lines installed in the hydraulic lines (connected to the hydraulic lines by individual hydraulic lines) to enable direct operation and individual operation at the same time. When assembling the segments 71, it is also possible to push them in one by one.

According to the foregoing, this equipment is a cylinder made of steel, a jack 21 can be placed inside, the jack 21 can be pushed and pulled, and after the jack 21 is pushed, the minimum longitudinal direction in the space within the cylinder. A 70 cm new conduit assembly space 98 can be formed, and a roller-type steel material protruding around the inner side on the inner surface facing the inside of the cylindrical shape (eg, the first support portion 6a and the second support portion ( 6b)) may include structures attached to it.

In addition, this equipment may have a bolt hole for connection and a rib bracket capable of withstanding the pressure of the jack 21 with the cylindrical connection support 1 made of steel. For example, the jack pressure wheel 22 may have a donut-shaped structure so that the front end surface can be in close contact with the new conduit 7 in a circular shape, and one side is connected to the jack 21 to press-fit and pull out. It may include a structure that becomes integral at the time.

Also, referring to FIGS. 1 to 3 , the equipment may include a lubricant injection device 8 . The lubricant injection device 8 may be provided with a lubricant injection valve 81, the lubricant injection valve 81 is disposed on the circular front surface, a check valve may be provided outside the valve, and the outer circumferential surface of the lubricant injection device 8 may be provided with a lubricant backflow prevention device 5, the lubricant backflow prevention device 5 is attached to a plurality of steel stacking units 51 and has a structure in which the stacking unit 5 opens and stands when pressure is applied can include

If the excavator cannot move forward because the conduit does not move due to the surrounding conditions during the construction of the conduit by forward excavation in the ground with the excavator, this equipment allows the excavator to advance. In addition, it is possible to connect the suspended existing pipeline, which can no longer be built, with the new pipeline with the connection support (1), and when the space is secured by the internal jack (21), the new pipeline is a block-type assembly material. It is possible to move forward while constructing a new conduit by assembling using the segment 71.

In addition, this equipment prevents the ground from collapsing on the excavation surface overexcavation and injects a semi-solid lubricant that prevents rocks and gravel such as crushers from directly closing the outer circumferential surface of the excavator and conduit to the shear surface of the conduit at the same time as excavation. can be injected.

In addition, since the forward excavation of the excavator is moved by pushing and pulling of the inner jack 21, the excavation can be performed by immediately replacing the jack 21 when the jack 21 does not move forward, so the workability can be excellent.

That is, according to the present application, even when the excavator cannot be advanced because the conduit does not move, the excavator can be advanced, and the conduit can also be constructed, significantly improving performance and constructability compared to the existing excavator. In addition, non-excavation propulsion type excavation equipment that can reduce construction time and required construction costs can be implemented.

Hereinafter, a non-breakthrough propulsion type excavation method (hereinafter referred to as 'this propulsion type excavation method') according to an embodiment of the present application will be described. However, this propulsion type excavation method uses the above-mentioned equipment, and shares the same or corresponding technical features and configurations as the above-mentioned equipment. Therefore, descriptions overlapping with those described in this equipment are simplified or omitted.

In this propulsion-type excavation method, the length of a plurality of jacks (21) is extended, the equipment is moved forward while switching to the length-extended state pushed forward, and then the length of the plurality of jacks (21) is reduced in the length-extended state to move forward. Securing a new conduit assembly space 98 between the jack device 2 and the connection support 1 (see Fig. 5 (a) to (c)) by switching the state to the pulled length reduction state (first step) is included. Alternatively, referring to (d) to (f) of FIG. 5, the first step is to extend the length of the plurality of jacks 21 and move the equipment forward while switching to the length extension state pushed forward, and then extend the length. It is possible to secure a new conduit assembly space 98 between the jack device unit 2 and the immediately new conduit 7 by reducing the length of the plurality of jacks 21 in the state and converting the state to the length reduced state pulled forward. .

When the new conduit (7) immediately before the new conduit (7) to be built is already arranged (when the new conduit (7) is built between the jack device (2) and the connection support (1) (the jack device ( When the first step is performed in a state where 2) is supported by the immediately new conduit (7)), the first step is a space for assembling a new conduit between the jack device 2 and the immediately preceding new conduit (7) 98) can be obtained. In addition, when there is no new conduit 7 built between the jack device 2 and the connection support 1 (the first step is performed while the jack device 2 is supported by the connection support 1) case), a new conduit assembly space 98 may be secured between the jack device 2 and the connection support 1.

In addition, referring to (d) of FIG. 5, in the present propulsion type excavation method, a step (second step) of constructing a new conduit 7 by assembling a segment 71 in a new conduit assembly space 98 include The second step may be performed by assembling the segments 71 conveyed through the passage as described above. At this time, when the first step is performed in a state in which the jack device unit 2 is supported by the immediately new conduit 7, the through-hole communicating with the passage and the passage of the immediately preceding new conduit 7 during the second step is performed. Segment 71 can be transported through.

According to this, the thrust type drilling method can be performed as follows.

Referring to (a) to (c) of FIG. 5, in this propulsion type excavation method, a plurality of jacks 21 are extended in length to switch to a forward pushed length extension state, and in the length extension state, a plurality of jacks ( 21) is reduced in length and converted to a length-reduced state pulled forward to advance the excavation equipment (4) and to secure a new conduit assembly space (98) between the jack device unit (2) and the connection support unit (1). there is.

Referring to (d) of FIG. 5, in the present propulsion type excavation method, a new conduit 7 can be constructed by assembling a segment 71 in a new conduit assembly space 98.

In addition, referring to (d) to (f) of FIG. 5, the thrust type excavation method converts a plurality of jacks 21 into a length-extended state pushed forward by lengthening a plurality of jacks 21, and a plurality of jacks in a length-extended state. (21) is reduced in length and converted to a length-reduced state pulled forward to advance the excavation equipment (4), and between the jack device (2) and the new conduit built in the second step, another new conduit assembly space (98) ) can be obtained.

In addition, referring to (g) of FIG. 5, the present propulsion type excavation method can build another new conduit in another new conduit assembly space 98. The construction of the new conduit 7 can be achieved by remaining the segment 71 through the passage communicating with the passage of the passage and the immediately preceding new conduit 7.

In other words, in the present propulsion type excavation method, referring to FIG. 5 (b), the excavator can be moved forward by pushing the jack 21 inside the assembly space forming part 3, see FIG. 5 (c) If so, it is possible to secure a new conduit assembly space 98 by pulling the jack 2 forward (step a). In addition, referring to (d) of FIG. 5, it is possible to build a new conduit in the secured new conduit assembly space 98 (step b). Accordingly, the assembly of one new conduit 7 can be completed. In addition, referring to FIG. 6 (e), the excavator can be moved forward by pushing the jack 21, and referring to FIG. 6 (f), by pulling the jack 2 forward, another new conduit assembly space ( 98) can be secured (step c). Then, referring to FIG. 6 (g), another new conduit 7 may be built in the secured space 98 for assembling another new conduit (step c). After this, steps c and d may be repeated. Accordingly, excavation and construction of a new conduit 7 can be made.

In addition, the present application provides a non-breakthrough composite excavation method (hereinafter referred to as 'this composite excavation method') according to an embodiment of the present application. This composite excavation method can be said to be a non-excavation composite excavation method capable of responding to complex soils. However, this combined excavation method uses the above-mentioned equipment, and includes the above-described present propulsion type drilling method, and shares the same or corresponding technical characteristics and configurations as the above-mentioned equipment and this propulsion type drilling method . Therefore, descriptions overlapping with those described in this equipment and this propulsion type drilling method will be simplified or omitted.

The composite excavation method includes a step (first step) of excavating using an excavator of this equipment, arranging equipment corresponding to the shield method on the side of the launching vertical shaft, and excavating by the shield method using the equipment corresponding to the shield method. Specifically, referring to (a) of FIG. 5, the excavator unit 4, the jack unit 2, the assembly space forming unit 3, and the connection support unit 1 may be assembled and put in, and the first The step is to excavate with the excavator of the excavator unit 4 of this equipment, but excavation can be performed by the shield method using equipment corresponding to the shield method. For example, equipment corresponding to the shield method may be placed on the side of the launching shaft except for the excavator. Even in the shield method, the excavator of this equipment can be used during excavation. Since such a shield method is obvious to those skilled in the art, a detailed description of the shield method and equipment corresponding to the shield method will be omitted.

In addition, the present composite excavation method includes a step (second step) of performing the above-described present propulsion type excavation method. For example, there may be a case where the first stage is stopped because jamming of the conduit occurs due to various factors and no further progress is made. In this case, the above-described propulsion type drilling method may be performed.

Specifically, referring to (b) of FIG. 5 , when the excavator does not move during excavation, the excavator may move forward by pushing the jack 21 inside the assembly space forming unit 3 . In addition, referring to (c) of FIG. 5, it is possible to secure a space 98 for assembling a new conduit by pulling the jack 2 forward. In addition, referring to FIG. 5 (d), a new conduit can be built in the secured new conduit assembly space 98. Accordingly, the assembly of one new conduit 7 can be completed. In addition, referring to (e) of FIG. 6, the excavator can be moved forward by pushing the jack 21. In addition, referring to FIG. 6 (f), it is possible to secure another new conduit assembly space 98 by pulling the jack 2 forward. Then, referring to FIG. 6 (g), another new conduit 7 may be built in the secured space 98 for assembling another new conduit. Thereafter, the steps shown in (e) to (g) of FIG. 6 may be repeated to construct excavation and new conduit 7.

The above description of the present application is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof should be construed as being included in the scope of the present application.

1: connection support
2: jack device
21: Jack
211: first cylinder
212: second cylinder
22: jack press
3: assembly space forming unit
4: excavator unit
5: Lubricant backflow preventer
51: stacking unit
511: stacking unit
52: protrusion
53: fixing part
7: New Conduit
71: segment
72: fastening member
73: fastening hole
731: belt unit for female thread formation
77: outlet
8: lubricant injection device
81: lubricant injection valve
91: rear end
98: space for new conduit assembly
99: underground excavation outer circumference

Claims (11)

As a non-cutting propulsion type drilling equipment,
a connection support disposed in front of the rear end so that the circumference is rearward supported with respect to the rear end disposed in the rear of the drilling direction of the non-breaking propulsion type drilling equipment;
A jack device unit including a plurality of jacks disposed along the circumference in front of the connection support portion so that the circumference is supported backward with respect to the connection support portion, and is provided with a length expandable and contractible in the forward and backward directions;
an assembly space forming unit provided to surround the outside of the plurality of jacks and extending backward toward the connection support unit to surround at least a portion of a new conduit assembly space formed between the jack device unit and the connection support unit; and
Including an excavator, including an excavator unit disposed in front of the jack device unit and the assembly space forming unit,
The excavator unit,
a lubricant injection device provided behind the excavator so as to be able to inject lubricant into an outer circumferential surface of underground excavation; and
Further comprising a lubricant backflow prevention device provided to block between the excavator and the lubricant injection device to prevent the lubricant injected to the outer circumferential surface of the underground excavation from flowing back toward the excavator,
The lubricant backflow prevention device,
A brush unit in which a plurality of brushes are arranged to extend obliquely to the rear and outward to prevent the lubricant injected into the outer circumferential surface of the underground excavation from flowing backward; and
Doedoe extended obliquely to the rear, including a plurality of overlapping units arranged at intervals in the front-back, radial, or oblique directions;
The plurality of brushes are arranged and extended so that some of the lubricant is interposed between the brushes to induce the formation of an obstruction state,
The plurality of overlapping units are provided in multiple layers so that the plurality of brushes are divided and disposed at intervals between the overlapping units, and when a forward pressure is applied by a lubricant, deformation that further spreads between the plurality of overlapping units To be induced, the spacing between the rear end sides of the plurality of stacking units is wider than the spacing between the front ends of the plurality of stacking units, but between the plurality of brushes to prevent the plurality of brushes from being bent forward and turned over Non-cut propulsion type drilling equipment, which is provided overlapping on. According to claim 1,
The jack device portion is provided separably from the connection support portion,
In the new conduit assembly space, when the plurality of jacks are reduced in length and the state is switched from the length extended state in which the length of the plurality of jacks is extended and pushed forward to the reduced length state in which the length of the plurality of jacks is reduced in length and pulled forward, the jack device unit And a space formed between the connection support,
The plurality of jacks are provided so that the length can be extended and reduced by a length capable of securing the space for assembling the new conduit through the state transition,
The assembly space forming unit extends rearward from the new conduit assembly space and is provided to surround a part of the outer circumference of the connection support part or the outer circumference of the immediately preceding new conduit assembly space located behind the new conduit assembly space. Excavation propulsion drilling equipment. delete According to claim 1,
The non-cutting propulsion type drilling equipment further includes a new conduit,
The new conduit includes a plurality of segments interconnected in its circumferential direction,
Among the plurality of segments, the remaining segments except for the first segment are engaged with each other in the circumferential direction, and the first segment is fitted and coupled to adjacent segments on one side and the other side in the circumferential direction, respectively,
The non-cut propulsion type excavation equipment, wherein the surface facing the first segment of each of the segments adjacent to the one side and the adjacent segments to the other side is formed as an inclined surface capable of fitting the first segment. According to claim 4,
The new conduit is bolted to the new conduit immediately adjacent to the rear,
At least one of the plurality of segments of the new conduit has a fastening member protruding in one direction on one surface and having a male thread formed on the outer surface, and a fastening hole into which the fastening member of the neighboring new conduit is inserted in the other direction on the other surface formed,
On the inner surface of the fastening hole, a belt unit for forming a female screw having a plurality of protrusion members arranged in a circumferential direction and protruding inward but not connected to each other so as to be individually deformed is formed, and the belt unit for forming a female screw is formed in the depth direction of the fastening hole. A plurality is formed with
When the plurality of protruding members are inserted, the plurality of protruding members are deformed to correspond individually to the external thread of the fastening member and screwed together with the fastening member. delete delete According to claim 1,
A first support protruding from the inner surface of the assembly space forming part in the radial direction of the assembly space forming part, and a first support part protruding from the inner surface of the assembly space forming part to the radially inside of the assembly space forming part at the rear of the first support. 2 further comprising a support,
The first support part,
In order to secure a space for assembling a new conduit, the length of the plurality of jacks is extended and the length of the plurality of jacks is reduced before the length is extended, and the length of the plurality of jacks is reduced before the length is extended. equipped to do
In the length extension state, the plurality of jacks are reduced in length and converted to a length reduction state pulled forward, and are provided to support segments for constructing the new conduit disposed in the formed space for assembling the new conduit,
The second support part,
In the length reduction state in which the length of the plurality of jacks is reduced before the length extension state, in the length extension state and the length extension state, the length of the plurality of jacks is reduced in length and in the length reduction state pulled forward, the immediately new conduit or the Non-cutting propulsion type drilling equipment provided to support the connection support. According to claim 8,
The first support part, when supporting the segment, is provided to support the segment at one point, but is provided with a material and standard that supports relatively less elastically than the second support part,
The second support portion is provided to support the connection support portion or the immediately preceding new conduit at two points and is provided with a material and standard that supports relatively more elastically than the first support portion. As a non-excavation propulsion type excavation method using the non-excavation propulsion type excavation equipment according to claim 1,
(a) moving the drilling equipment forward while converting the plurality of jacks into a length-extended state pushed forward, and then reducing the length of the plurality of jacks in the length-extended state to a state where the length was pulled forward By converting, securing a space for assembling the new conduit between the jack device and the connection support or between the jack device and the immediately preceding new conduit; and
(b) A non-breakthrough propulsion type excavation method comprising the step of constructing a new conduit by assembling segments in the new conduit assembly space. As a non-excavation complex excavation method including the non-excavation propulsion type excavation method according to claim 10,
(a) excavating using the excavator, arranging equipment corresponding to the shield method on the side of the launch vertical shaft and excavating using the shield method using the equipment corresponding to the shield method; and
(b) a non-breakthrough composite excavation method capable of responding to composite soil, including the step of excavating using the non-breakthrough propulsion type drilling method.

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