CN115726803A - Anchor-pull type pipe jacking construction device and construction method thereof - Google Patents

Abstract

The invention discloses an anchor-pull type pipe-jacking construction device and a construction method thereof, belongs to the technical field of underground tunnel construction, and aims to solve the problem of small application range caused by pulling a pipe culvert to advance in the prior art, the anchor-pull type pipe-jacking construction device comprises a tunneling unit (1), an anchor cable (4) and an advancing driving mechanism (6), wherein the anchor cable (4) can penetrate through a construction section (11), one end of the anchor cable (4) can be positioned outside an initial end (2), the other end of the anchor cable (4) can be positioned outside a receiving end (3), the advancing driving mechanism (6) is connected with the anchor cable (4), and the advancing driving mechanism (6) can push the tunneling unit (1) to advance. The anchor-pull type pipe jacking construction device and the construction method thereof apply the thrust to the tail part of the tunneling unit, so that the tunneling unit and the pipe joint are pushed to advance, the construction requirement of safe downward penetration is met, the construction cost can be greatly reduced, the anchor-pull type pipe jacking construction device is particularly suitable for downward penetration at medium and short distances, and the economic benefit is obvious.

Description

Anchor-pull type pipe jacking construction device and construction method thereof

Technical Field

The invention relates to the technical field of underground tunnel construction, in particular to an anchor-pull type pipe jacking construction device and an anchor-pull type pipe jacking construction method.

Background

The pipe-jacking construction method has the advantages of safe construction, high construction speed, cheaper equipment than a shield machine, no need of excavating a road surface and carrying out pipeline relocation and the like, and is widely applied to non-excavation projects such as underpass, tunnels, pipelines and the like. The traditional pipe jacking project comprises a working well, a receiving well, a pipe jacking machine, a pipe joint structure and other main parts, wherein the pushing force for the advancing of the pipe jacking machine is provided by utilizing a backrest behind the receiving well, so that the pipe joint and the pipe jacking machine are pushed to advance, and the construction of the pipe jacking project is completed; however, the working well and the receiving well work Cheng Feiyong are high, when the underpass distance is short, the project cost of the working well and the receiving well even accounts for most of the whole underpass project, the working well and the receiving well are usually only used as temporary structures for construction, and after the underpass construction of the top well is completed, backfilling is needed, so that the project waste is serious. With the increase of construction projects, medium and short distance underpass projects are more and more, if a traditional pipe jacking construction method is adopted, the construction cost of a working well and a receiving well accounts for a higher proportion of the whole underpass project, the economic benefit is very poor, and other underpass schemes also have various limited application conditions, such as high construction cost of shield method equipment; the horizontal directional drilling process is mainly used for the downward penetration of small-diameter pipelines although the construction cost is low, and the construction precision is low; spiral pipe jacking, while reducing the size of the well, also requires the well to be deployed and used primarily for low diameter pipe underpass.

Chinese patent CN 1693667A, published as 2005, 11/9, discloses a counter-pulling device for underground pipe culvert linear underground excavation, which has the advantages that two machine heads move forward in opposite directions, the pulling force is balanced, and the counter-pulling device can adapt to more engineering conditions; the steel cable works continuously to keep the earth pressure balance on the working surface all the time, but the following obvious defects exist: 1. the machine head pulls the pipe culverts to move forward, strong connecting measures such as welding or flange connection are needed among the pipe culverts, and the pipe culverts are not suitable for pipe joints of socket type interfaces; 2. because the pull rope passes through the machine head, the machine head can not rotate to cut soil, the machine head only can adopt an open type tool head, manual heading is needed, the construction efficiency is low, and the open type tool head is not suitable for strata with poor tunnel face stability or high underground water and is also not suitable for lithoid strata; 3. the machine head is converged in the middle of the underpass project, the machine head shell needs to be buried underground as a permanent structure, the machine head cannot be reused, the equipment reuse rate is low, and the project cost is increased; 4. still set up work well and receiving well, work well and receiving well construction cost are higher.

Chinese patent CN 101749028A, published as 6/23/2010, discloses a "counter-pulling construction method for soft soil areas with high groundwater level", and proposes a precipitation scheme to implement the application of the counter-pulling construction method in soft soil areas with high groundwater level, but a series of disadvantages of chinese patent CN 1693667A exist.

Disclosure of Invention

In order to solve the problem of small application range caused by pulling the pipe culvert to advance, the invention provides the anchor-pull type pipe-jacking construction device and the construction method thereof, wherein the anchor-pull type pipe-jacking construction device and the construction method thereof apply thrust to the tail part of the tunneling unit, so that the tunneling unit and the pipe joints are pushed to advance, the construction requirement of safe underpass is met, the construction cost can be greatly reduced, the anchor-pull type pipe-jacking construction device is particularly suitable for medium-short distance underpass, and the economic benefit is obvious.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the anchor-pull type pipe jacking construction device comprises a tunneling unit, an anchor cable and a forward driving mechanism, wherein the anchor cable can penetrate through a construction section, one end of the anchor cable can be positioned outside an initial end, the other end of the anchor cable can be positioned outside a receiving end, the forward driving mechanism is connected with the anchor cable, and the forward driving mechanism can push the tunneling unit to advance.

The anchor-pull type pipe jacking construction method adopts the anchor-pull type pipe jacking construction device, the advancing driving mechanism comprises a jacking seat and a first core penetrating oil cylinder, and the anchor-pull type pipe jacking construction method comprises the following steps:

step 1, preparation before construction;

step 2, penetrating an anchor cable into the construction section, wherein one end of the anchor cable is positioned outside the initial end, and the other end of the anchor cable is positioned outside the receiving end;

step 3, installing a tunneling unit and an advancing driving mechanism;

step 4, the forward driving mechanism pushes the top seat and the tunneling unit to move forward by the length of at least one pipe joint;

and 5, the top seat retreats by the length of the at least one pipe joint, and the at least one pipe joint is inserted between the top seat and the tunneling unit.

The invention has the beneficial effects that: under the condition of not arranging a working well and a receiving well, construction of a downward-penetrating pipe-jacking project is realized by utilizing the working faces dug at two ends, and the project cost is greatly saved. The pipe joint excavating device is suitable for various types of pipe joints such as steel pipes and concrete pipes, the excavating shape can be circular, rectangular, rectangle-like and the like, the pipe jacking machine can adopt manual excavating or mechanical excavating, and the pipe joint excavating device can be well suitable for various stratums.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic plan view of the anchor pull type pipe jacking construction equipment according to the present invention before jacking.

FIG. 2 is a schematic left view of the anchor push pipe construction device according to the present invention before pushing.

Figure 3 is a schematic view of the advancing drive unit being propelled.

Figure 4 is a schematic of the out-receiving end of the ripping unit.

FIG. 5 is a schematic illustration of the construction site with an originating well and a receiving well at both ends.

FIG. 6 is a schematic view of a second feedthrough cylinder at the receiving end.

FIG. 7 is a schematic view of a first feed-through cylinder at the originating end and a second feed-through cylinder at the receiving end.

FIG. 8 is a schematic diagram of the anchor-pull type pipe jacking construction device of the present invention including two tunneling units.

The reference numerals are explained below:

1. a tunneling unit; 2. an originating end; 3. a receiving end; 4. an anchor cable; 5. pipe joints; 6. a forward drive mechanism; 7. reinforcing the end head; 8. a receiving end reaction frame; 9. an origin end reaction frame; 10. hardening the ground at the bottom of the pit; 11. constructing a section;

101. a pipe jacking machine at the initial end; 102. receiving a pipe jacking machine;

501. the pipe joint is jacked; 502. the pipe joint is pushed in;

601. a top seat; 602. a first feed-through cylinder; 603. a first anchor and a backstop clamping piece; 604. a second anchor and a backstop clamping piece; 605. a second feed-through cylinder;

801. a fourth anchor and a backstop clamping piece;

901. a third anchor and a backstop clamping piece.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

An anchor-pull type pipe jacking construction device comprises a tunneling unit 1, an anchor cable 4 and a forward driving mechanism 6, wherein the anchor cable 4 can penetrate through a construction section 11, one end of the anchor cable 4 can be positioned outside an initiating end 2, the other end of the anchor cable 4 can be positioned outside a receiving end 3, the forward driving mechanism 6 is connected with the anchor cable 4, and the forward driving mechanism 6 can push the tunneling unit 1 to advance, as shown in figures 1 to 4.

The tunneling unit 1 comprises a head part and a tail part, the head part of the tunneling unit 1 is used for tunneling, and the forward driving mechanism 6 can directly or indirectly apply thrust to the tail part of the tunneling unit 1 through the anchor cable 4 so as to push the tunneling unit 1 to advance. When the pipe joints 5 are arranged at the tail part of the tunneling unit 1, the forward driving mechanism 6 directly or indirectly applies thrust to the tail part of the tunneling unit 1, the pipe joints 5 and the tunneling unit 1 move forward simultaneously, and the pipe joints 5 do not need to be welded or connected through flanges.

In this embodiment, the tunneling unit 1 may be a pipe pusher, the head of the pipe pusher includes a cutter head, the cutter head is rotatable, the multiple anchor cables 4 are arranged at intervals along the circumferential direction of the tunneling unit 1, the anchor cables 4 are located outside the tunneling unit 1, the pipe pusher may adopt equipment types such as an open pipe pusher for manual excavation, an open pipe pusher for mechanical excavation, a closed pipe pusher, and the shape of the pipe pusher may be circular, rectangular, or rectangular-like according to the shape of the pipeline. Or, the heading unit 1 may also be a machine head (as described in chinese patent CN 1693667A), multiple anchor cables 4 are arranged at intervals along the circumferential direction of the heading unit 1, and the anchor cables 4 are located in the heading unit 1, that is, the anchor cables 4 pass through the heading unit 1.

Preferably, the excavation unit 1 may be a pipe jacking machine, the extending direction of the anchor cable 4 is parallel to the axial direction of the excavation unit 1, the forward driving mechanism 6 is located outside the originating end 2, the forward driving mechanism 6 includes a top seat 601 and a first core-penetrating cylinder 602, the anchor cable 4 passes through the top seat 601 and the first core-penetrating cylinder 602, the top seat 601 and the excavation unit 1 are sequentially arranged along the extending direction of the anchor cable 4 (from the receiving end 3 to the receiving end 3), and a pipe joint 5 can be inserted between the top seat 601 and the excavation unit 1, as shown in fig. 1 to 4.

In this embodiment, the cutter head of the excavation unit 1 faces the receiving end 3, the forward driving mechanism 6 can push the excavation unit 1 to move forward from the originating end 2 to the receiving end 3, the first core-piercing cylinder 602 includes a cylinder barrel and a piston rod, when the piston rod of the first core-piercing cylinder 602 extends out, the first core-piercing cylinder 602 can apply a pulling force to the anchor cable 4, and meanwhile, the first core-piercing cylinder 602 can apply a pushing force to the excavation unit 1 through the top base 601, the pulling force is the same as the pushing force and has the same size and opposite direction, which is also understood that the first core-piercing cylinder 602 converts the pulling force applied to the anchor cable 4 into the pushing force applied to the excavation unit 1.

Specifically, the first core-penetrating oil cylinders 602 correspond to the anchor cables 4 one by one, the anchor cables 4 penetrate through the cylinder barrel and the piston rod of the first core-penetrating oil cylinder 602, the cylinder barrel of the first core-penetrating oil cylinder 602 is fixedly connected with the anchor cables 4, when the piston rod of the first core-penetrating oil cylinder 602 extends out, the cylinder barrel of the first core-penetrating oil cylinder 602 is kept stationary, the anchor cables 4 are in a tensioned state, the piston rod of the first core-penetrating oil cylinder 602 gradually extends out, the piston rod of the first core-penetrating oil cylinder 602 pushes the top seat 601 and the tunneling unit 1 to be away from the cylinder barrel of the first core-penetrating oil cylinder 602, so that the tunneling unit 1 is pushed to advance, and the top seat 601 transmits the thrust output by the first core-penetrating oil cylinder 602 to the tail of the tunneling unit 1.

Or a piston rod of the first core-penetrating cylinder 602 is fixedly connected with the anchor rope 4, when the piston rod of the first core-penetrating cylinder 602 extends out, the piston rod of the first core-penetrating cylinder 602 is kept fixed, the anchor rope 4 is in a tensioned state, the piston rod of the first core-penetrating cylinder 602 gradually extends out, the cylinder barrel of the first core-penetrating cylinder 602 pushes the top seat 601 and the tunneling unit 1 to be away from the cylinder barrel of the first core-penetrating cylinder 602, and therefore the tunneling unit 1 is pushed to advance, and the top seat 601 transmits the thrust output by the first core-penetrating cylinder 602 to the tail of the tunneling unit 1.

In this embodiment, the top base 601 is an upright plate-like structure, the axis of the heading unit 1 is perpendicular to the top base 601, the distance from the edge of the top base 601 to the axis of the heading unit 1 is greater than the radius of the heading unit 1, and the first coring cylinder 602 is located between the edge of the top base 601 and the outer circumferential surface of the heading unit 1. The strength of the top block 601 should be sufficient to transmit the thrust output by the first feed-through cylinder 602 to the rear of the heading unit 1.

Specifically, the top seat 601 may be an annular structure, the outer contour of the top seat 601 may be a rectangle, the inner contour of the top seat 601 may be a circle, the radius of the inner contour of the top seat 601 is smaller than the radius of the excavating unit 1, the axis of the inner contour of the top seat 601 coincides with the axis of the excavating unit 1, and the left side and the right side of the top seat 601 are respectively provided with three anchor cables 4 and three first core penetrating cylinders 602, as shown in fig. 2.

In this embodiment, a first anchor and a retaining clip 603 are connected between the top seat 601 and the anchor cable 4, the first anchor and the retaining clip 603 are located on one side of the top seat 601 facing away from the originating end 2, a second anchor and a retaining clip 604 are connected between (a cylinder or a piston rod of) the first core-penetrating cylinder 602 and the anchor cable 4 (a second anchor and a retaining clip 604 are connected between the cylinder of the first core-penetrating cylinder 602 and the anchor cable 4), and the second anchor and the retaining clip 604 are located on one end of the first core-penetrating cylinder 602 facing away from the originating end 2.

In this embodiment, the anchor-pulling pipe-jacking construction device further includes an originating-end reaction frame 9, the originating-end reaction frame 9 can be located outside the originating end 2, the originating-end reaction frame 9 can be connected to the originating end 2 in a stacked manner, the originating-end reaction frame 9 can be sleeved outside the excavating unit 1, the anchor rope 4 passes through the originating-end reaction frame 9, a third anchor and a backstop clamping piece 901 are connected between the originating-end reaction frame 9 and the anchor rope 4, and the third anchor and the backstop clamping piece 901 are located on a side of the originating-end reaction frame 9 opposite to the originating end 2.

In this embodiment, anchor-pull type pipe-jacking construction device further comprises a receiving end reaction frame 8, the receiving end reaction frame 8 can be located outside the receiving end 3, the receiving end reaction frame 8 can be connected with the receiving end 3 in a stacked mode, the receiving end reaction frame 8 can be sleeved outside the tunneling unit 1, the anchor cable 4 penetrates through the receiving end reaction frame 8, a fourth anchor and a stopping clamping piece 801 are connected between the receiving end reaction frame 8 and the anchor cable 4, and the fourth anchor and the stopping clamping piece 801 are located on one side, opposite to the receiving end 3, of the receiving end reaction frame 8.

The arrangement of the first anchor and the retaining clip 603, the second anchor and the retaining clip 604, the third anchor and the retaining clip 901, and the fourth anchor and the retaining clip 801 has the effect that the anchor cable 4 is always in a tensioned state, so that the anchor cable 4 is prevented from being tensioned repeatedly after being loosened, and the working efficiency is improved. The top seat 601, the receiving end reaction frame 8 and the initiating end reaction frame 9 can be welded by adopting materials such as section steel, cast iron members or steel members.

The anchor pulling type pipe jacking construction method adopts the anchor pulling type pipe jacking construction device and comprises the following steps:

step 1, preparation before construction;

the working surfaces at two ends of the open-cut underpass project (namely the construction section 11) are dug out to form an initial end 1 and a receiving end 2, when two ends of the underpass project are connected with the open-cut section, the excavated working surfaces of the open-cut section can be directly used as the initial end 1 and the receiving end 2, then the pit bottom hardened ground 10 is constructed, and when the ground layer is weak, the construction of end reinforcement 7 can be carried out in the initial end 1 and the receiving end 2. In order to ensure the stability of the working surface (i.e. the originating end 1 and the receiving end 2) excavated vertically at two ends, the working surface can be supported by steel sheet piles, construction method piles, fender piles and the like.

Step 2, penetrating an anchor cable 4 into the construction section 11, wherein one end of the anchor cable 4 is positioned outside the initiating end 2, and the other end of the anchor cable 4 is positioned outside the receiving end 3;

a horizontal hole may be drilled in the construction site 11 using a geological drilling rig or a horizontal directional, etc., which should be located outside the pre-excavated tunnel, and then the anchor cable 4 is threaded into the horizontal hole.

Step 3, installing the tunneling unit 1 and the forward driving mechanism 6;

processing and installing a receiving end reaction frame 8 and an initiating end reaction frame 9, wherein the receiving end reaction frame 8 and the initiating end reaction frame 9 can be placed on the pit bottom hardened ground 10, or the lower parts of the receiving end reaction frame and the initiating end reaction frame can be suspended and fixed on the end surface of the initiating end 2 or the receiving end 3, installing a third anchor and a backstop clamping piece 901 and a fourth anchor and a backstop clamping piece 801, and fixing an anchor cable 4 on the receiving end reaction frame 8 and the initiating end reaction frame 9;

in the initiating end 2, the tunneling unit 1 is hung downwards and assembled and debugged, the roof base 601 is hung downwards, a hole through which an anchor rope 4 needs to pass is reserved on the roof base 601, a first anchor and a backstop clamping piece 603, a second anchor and a backstop clamping piece 604 and a core penetrating oil cylinder 602 are installed, and the core penetrating oil cylinder 602, the roof base 601 and the tunneling unit 1 are connected in sequence.

Step 4, the forward driving mechanism 6 pushes the top seat 601 and the tunneling unit 1 to move forward by at least one section (such as one section) of pipe joint 5;

the anchor cable 4 is tensioned by the core-through oil cylinder 602 (the tensioning process is the same as the prestress tensioning process). As the core penetrating cylinder 602 extends, the anchor cable 4 is gradually tensioned due to the locking action of the second anchor and the backstop clamping piece 604, when the anchor cable 4 is completely tightened, the anchor cable 4 does not extend any more, at this time, as the piston rod of the core penetrating cylinder 602 continues to extend, the force generated by the core penetrating cylinder 602 can enable the anchor cable 4 to generate a pull-back force, the pull-back force of the anchor cable 4 is converted into a thrust force through the top seat 601, and the thrust force enables the top seat 601 to push the tunneling unit 1 (pipe jacking machine) to advance;

the general stroke of the core-penetrating oil cylinder 602 is short, multiple steps need to be changed in the jacking process of a pipe joint 5, when the core-penetrating oil cylinder 602 is changed, the first anchor and the stopping clamping piece 603 can prevent the anchor cable 4 between the top seat 601 and the receiving end 3 from loosening, when the steps are changed and retracted, the piston rod of the core-penetrating oil cylinder 602 only needs to move the second anchor, the stopping clamping piece 604 and the core-penetrating oil cylinder 602 to be tightly attached to the top seat 601 again, so that the piston rod of the core-penetrating oil cylinder 602 can extend again, and the core-penetrating oil cylinder continues to jack until the jacking of a pipe joint 5 is completed.

And 5, the top seat 601 retreats by the length of the at least one pipe joint 5, and the at least one pipe joint 5 is inserted between the top seat 601 and the tunneling unit 1.

After the jacking of one pipe joint 5 is completed, the second anchor and the retaining clip 604 are loosened, the core-penetrating oil cylinder 602 is moved backwards, the first anchor and the retaining clip 603 are loosened, the top seat 601 is moved backwards, for example, the top seat 601 is moved backwards by a distance slightly larger than that of one pipe joint 5, a space is vacated, and the pipe joint 501 to be jacked is hung between the top seat 601 and the tunneling unit 1, in the process, due to the locking effect of the third anchor and the retaining clip 901, the anchor cable 4 between the initial end 2 and the receiving end 3 can be prevented from being loosened, and the anchor cable 4 is prevented from being repeatedly tensioned. And then the top seat 601, the first anchor and the backstop clamping piece 603, the core penetrating oil cylinder 602 and the second anchor and the backstop clamping piece 604 are moved to the top seat 601 to be tightly attached to the pipe joint 501 to be jacked.

Then, referring to steps 4 and 5, the pipe joint 5 and the excavation unit 1 are jacked in multiple times, each time by the distance of one pipe joint 5, and each time a pipe joint 501 to be jacked is inserted between the jacked pipe joint 502 and the jacking seat 601. After the jacking is completed, the tunneling unit 1 can be jacked out of the receiving end 3, the anchor cable 4 is loosened, the tunneling unit 1, the receiving end reaction frame 8 and the originating end reaction frame 9 are lifted out, and the downward-penetrating jacking operation is completed.

The anchor-pull type pipe jacking construction device and the construction method thereof can realize that the construction of a downward-penetrating pipe jacking project is realized by utilizing the working faces dug at two ends under the condition that a working well and a receiving well are not arranged, and the construction cost is greatly saved. The method is suitable for various types of pipe joints such as steel pipes, concrete pipes and the like, the excavation shape can be circular, rectangular, rectangle-like and the like, the pipe jacking machine can adopt manual excavation or mechanical excavation, and the method can be well suitable for various strata. The anchor-pull type pipe jacking construction device and the construction method thereof can also be realized under the condition of arranging a working well and a receiving well, as shown in fig. 5.

Example 2

This embodiment is an improvement of embodiment 1, and the main difference between this embodiment and embodiment 1 is that the piercing cylinder can be located at the receiving end 3, or the piercing cylinder can be located at both the originating end 2 and the receiving end 3.

Specifically, the forward driving mechanism 6 includes a footstock 601 and a second threading cylinder 605 (the forward driving mechanism 6 only includes the second threading cylinder 605 but does not include the first threading cylinder 602), the footstock 601 is located outside the originating end 2, the second threading cylinder 605 is located outside the receiving end 3, the anchor rope 4 passes through the footstock 601 and the second threading cylinder 605, and the footstock 601, the excavating unit 1 and the second threading cylinder 605 are sequentially arranged along the extending direction of the anchor rope 4 (from the receiving end 3 to the receiving end 3); the second core-penetrating cylinder 605 comprises a cylinder barrel and a piston rod, when the piston rod of the second core-penetrating cylinder 605 extends out, the second core-penetrating cylinder 605 can apply a pulling force to the anchor cable 4, the anchor cable 4 can apply a pushing force to the heading unit 1 through the top seat 601, and the pulling force and the pushing force are the same in size and direction, as shown in fig. 6.

Alternatively, the forward driving mechanism 6 includes a top seat 601, a first core-penetrating cylinder 602 and a second core-penetrating cylinder 605, the top seat 601 and the first core-penetrating cylinder 602 are both located outside the originating end 2, the second core-penetrating cylinder 605 is located outside the receiving end 3, the anchor rope 4 passes through the top seat 601, the first core-penetrating cylinder 602 and the second core-penetrating cylinder 605, the first core-penetrating cylinder 602, the top seat 601, the excavating unit 1 and the second core-penetrating cylinder 605 are sequentially arranged along the extending direction of the anchor rope 4 (from the receiving end 3 to the receiving end 3), and the first core-penetrating cylinder 602 and the second core-penetrating cylinder 605 can simultaneously push the excavating unit 1 to move forward, as shown in fig. 7.

The remaining features of the present embodiment may be the same as those of embodiment 1, or embodiment 1 is taken as a reference, and the present embodiment will not be described in detail for the sake of brevity.

Example 3

The embodiment is an improvement of the embodiment 1, and the main difference between the embodiment and the embodiment 1 is that two tunneling units 1 can be provided, the tunneling units 1 are pipe push-bench machines, tunneling is performed in opposite directions, after butt joint in a tunnel, shells are abandoned, and the pipe push-bench shells are used as permanent pipelines.

Specifically, the tunneling unit 1 includes an originating push bench 101 and a receiving end push bench 102, the axis of the originating push bench 101 coincides with the axis of the receiving end push bench 102, a cutter head of the originating push bench 101 faces the receiving end 3, a cutter head of the receiving end push bench 102 faces the originating push bench 2, and the forward driving mechanisms 6 are located outside the originating push bench 2 and the receiving end 3, that is, the forward driving mechanisms 6 are respectively disposed outside the originating push bench 2 and the receiving end 3. The forward driving mechanism 6 includes a top seat 601 and a first core-through cylinder 602, the anchor cable 4 passes through the top seat 601 and the first core-through cylinder 602, the top seat 601, the origin push bench 101, the receiving end push bench 102, the top seat 601 and the first core-through cylinder 602 are sequentially arranged along the extending direction of the anchor cable 4 (from the receiving end 3 to the receiving end 3), as shown in fig. 8.

The remaining features of the present embodiment may be the same as those of embodiment 1, or embodiment 1 is taken as a reference, and the present embodiment will not be described in detail for the sake of brevity.

The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features and the technical characteristics, the technical features and the technical scheme, the technical scheme and the technical scheme, and the embodiment of the invention can be freely combined and used.

Claims (10)

1. The anchor-pull type pipe-jacking construction device is characterized by comprising a tunneling unit (1), an anchor cable (4) and a forward driving mechanism (6), wherein the anchor cable (4) can penetrate through a construction section (11), one end of the anchor cable (4) can be positioned outside an initial end (2), the other end of the anchor cable (4) can be positioned outside a receiving end (3), the forward driving mechanism (6) is connected with the anchor cable (4), and the forward driving mechanism (6) can push the tunneling unit (1) to advance.

2. The anchor-pull pipe jacking construction device according to claim 1, wherein the tunneling unit (1) is a pipe jacking machine, the plurality of anchor cables (4) are arranged along the circumferential direction of the tunneling unit (1), the anchor cables (4) are positioned outside the tunneling unit (1), the forward driving mechanism (6) is positioned outside the initiating end (2), the forward driving mechanism (6) comprises a top seat (601) and a first core penetrating cylinder (602), the anchor cables (4) penetrate through the top seat (601) and the first core penetrating cylinder (602), the top seat (601) and the tunneling unit (1) are sequentially arranged along the extending direction of the anchor cables (4), and a pipe joint (5) can be inserted between the top seat (601) and the tunneling unit (1).

3. The anchor-pull type pipe jacking construction device according to claim 2, wherein a cutter head of the tunneling unit (1) faces towards the receiving end (3), the first core-penetrating cylinder (602) comprises a cylinder barrel and a piston rod, when the piston rod of the first core-penetrating cylinder (602) extends out, the first core-penetrating cylinder (602) can apply pulling force to the anchor cable (4), meanwhile, the first core-penetrating cylinder (602) can apply pushing force to the tunneling unit (1) through the jacking seat (601), and the pulling force and the pushing force are the same in magnitude and opposite in direction.

4. The anchor pull type pipe jacking construction device according to claim 2, wherein the top seat (601) is of an upright plate-shaped structure, the axis of the tunneling unit (1) is perpendicular to the top seat (601), the distance from the edge of the top seat (601) to the axis of the tunneling unit (1) is larger than the radius of the tunneling unit (1), and the first core penetrating cylinder (602) is located between the edge of the top seat (601) and the outer peripheral surface of the tunneling unit (1).

5. The anchor-pull pipe jacking construction device according to claim 4, wherein a first anchor and a retaining clip (603) are connected between the top seat (601) and the anchor cable (4), the first anchor and the retaining clip (603) are located on the side of the top seat (601) opposite to the originating end (2), a second anchor and a retaining clip (604) are connected between the first core-penetrating cylinder (602) and the anchor cable (4), and the second anchor and the retaining clip (604) are located on the end of the first core-penetrating cylinder (602) opposite to the originating end (2).

6. The anchor pipe jacking construction device as claimed in claim 5, further comprising an origin end reaction frame (9), wherein the origin end reaction frame (9) is capable of being located outside the origin end (2), the origin end reaction frame (9) is capable of being sleeved outside the tunneling unit (1), the anchor cable (4) passes through the origin end reaction frame (9), a third anchor and a stopping clip (901) are connected between the origin end reaction frame (9) and the anchor cable (4), and the third anchor and the stopping clip (901) are located on a side of the origin end reaction frame (9) opposite to the origin end (2).

7. The anchor pipe jacking construction device according to claim 2, further comprising a receiving end reaction frame (8), wherein the receiving end reaction frame (8) can be located outside the receiving end (3), the receiving end reaction frame (8) can be sleeved outside the tunneling unit (1), the anchor cable (4) penetrates through the receiving end reaction frame (8), a fourth anchor and a backstop clamping piece (801) are connected between the receiving end reaction frame (8) and the anchor cable (4), and the fourth anchor and the backstop clamping piece (801) are located on one side, opposite to the receiving end (3), of the receiving end reaction frame (8).

8. The anchor-pull pipe jacking construction device according to claim 1, wherein the tunneling unit (1) is a pipe jacking machine, the plurality of anchor cables (4) are arranged along the circumferential direction of the tunneling unit (1), the anchor cables (4) are positioned outside the tunneling unit (1), the forward driving mechanism (6) comprises a top seat (601) and a second core-penetrating cylinder (605), the top seat (601) is positioned outside the initial end (2), the second core-penetrating cylinder (605) is positioned outside the receiving end (3), the anchor cables (4) penetrate through the top seat (601) and the second core-penetrating cylinder (605), and the top seat (601), the tunneling unit (1) and the second core-penetrating cylinder (605) are sequentially arranged along the extending direction of the anchor cables (4);

the second core-penetrating oil cylinder (605) comprises a cylinder barrel and a piston rod, when the piston rod of the second core-penetrating oil cylinder (605) extends out, the second core-penetrating oil cylinder (605) can apply pulling force to the anchor cable (4), the anchor cable (4) can apply pushing force to the tunneling unit (1) through the top seat (601), and the pulling force and the pushing force are the same in size and direction.

9. The anchor-pull pipe jacking construction device according to claim 1, wherein the tunneling unit (1) is a pipe jacking machine, the plurality of anchor cables (4) are arranged along the circumferential direction of the tunneling unit (1), the anchor cables (4) are located outside the tunneling unit (1), the tunneling unit (1) comprises an originating pipe jacking machine (101) and a receiving end pipe jacking machine (102), a cutter head of the originating pipe jacking machine (101) faces towards a receiving end (3), a cutter head of the receiving end pipe jacking machine (102) faces towards the originating end (2), an advancing driving mechanism (6) is located outside the originating end (2) and the receiving end (3), the advancing driving mechanism (6) comprises a jacking seat (601) and a first core penetrating cylinder (602), the anchor cables (4) penetrate through the jacking seat (601) and the first core penetrating cylinder (602), the jacking seat (601), the originating pipe jacking machine (101), the receiving end pipe jacking seat (102), the jacking seat (601) and the first core penetrating cylinder (602) are sequentially arranged along the extending direction of the anchor cables (4).

10. An anchor pull type pipe jacking construction method is characterized in that the anchor pull type pipe jacking construction method adopts the anchor pull type pipe jacking construction device of claim 1, a forward driving mechanism (6) comprises a jacking seat (601) and a first core penetrating oil cylinder (602), and the anchor pull type pipe jacking construction method comprises the following steps:

step 1, preparation before construction;

step 2, penetrating an anchor cable (4) into the construction section (11), wherein one end of the anchor cable (4) is positioned outside the initiating end (2), and the other end of the anchor cable (4) is positioned outside the receiving end (3);

step 3, installing a tunneling unit (1) and a forward driving mechanism (6);

step 4, the forward driving mechanism (6) pushes the top seat (601) and the tunneling unit (1) to move forward by the length of at least one pipe joint (5);

and 5, the footstock (601) retreats by the length of the at least one pipe joint (5), and the at least one pipe joint (5) is inserted between the footstock (601) and the tunneling unit (1).

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