WO2019076055A1 - Interjack station-based box culvert jacking system having jacking frame assembly - Google Patents

Abstract

An interjack station-based box culvert jacking system (100) having a jacking frame assembly (32). The interjack station-based box culvert jacking system (100) is provided to jack box culverts (20) into a tunnel (200), and comprises an operating platform (10) provided adjacent to a tunnel entrance (210) and at least two box culverts (20) located on the operating platform (10). The interjack station-based box culvert jacking system (100) further comprises at least one jacking apparatus (30) provided to jack the box culverts (20) located in front of the tunnel entrance (210), at least one pulling force apparatus (40) provided to pull second to nth box culverts (20) along a first direction, and at least one pushing force apparatus (50) provided to push the box culverts (20) that have partially or completely entered the tunnel entrance (210). The pulling force apparatus (40) is connected between two adjacent box culverts (20). The pushing force apparatus (50) is provided between two adjacent box culverts (20). Each of the box culverts (20) is provided with a thrust block structure (22). The jacking apparatus (30) is provided on the operating platform (10) and connected to the thrust block structure (22) of one box culvert (20).

Description

 Box culvert relay jacking system with pusher frame assembly

Technical field

The present invention relates to the field of box culvert jacking tunnel propulsion technology, and in particular to a box culvert relay jacking system with a pusher frame assembly.

Background technique

The prior art large-section box culvert top push method generally adopts a single-section box culvert to complete the pre-fabrication once and complete the top-pushing through the tunnel, which has at least the following defects:

First, the existing large section box culvert top push method is prefabricated once, that is, the complete single box culvert is completed by one time according to the length of the tunnel to be traversed, and the required space for the prefabricated space of the box culvert needs to be provided, therefore, Unable to meet the requirements of narrow construction sites;

Secondly, the existing large-section box culvert pushing method completes the tunnel crossing once, and the size and weight of a complete box culvert completed by one prefabrication are large, so the mechanical equipment required by the jacking is provided. The top thrust is large and the mechanical equipment used is relatively large.

Summary of the invention

The main purpose of the present application is to provide a box culvert relay jacking system with a pusher frame assembly, which aims to solve the problem that the box culvert pushing method cannot meet the requirements of a narrow construction site, and the mechanical equipment used is relatively large.

In order to achieve the above object, a box culvert relay jacking system with a pusher frame assembly according to the present application is configured to push a box culvert top into a tunnel, including a working platform disposed adjacent to the tunnel entrance, and located on the working platform. At least two sections of the box culvert, the direction in which the box culvert is pushed into the tunnel is defined as a first direction, and the box culverts arranged in the second direction opposite to the first direction are respectively defined as a first section of the box culvert, ... And the nth box culvert, n≥2, the first section of the box culvert and the second section of the box culvert are prefabricated first on the working platform, and the first section of the box culvert and the second section of the box culvert are both along the first After the direction advances, the third section of the box is prefabricated at the initial position of the second section of the box culvert, and after the first section of the box culvert to the n-1th section of the box culvert is advanced in the first direction, the nth section of the box culvert Prefabricating at an initial position of the second section of the box culvert, the box culvert relay pushing system further comprising at least one pushing device arranged to push the box culvert in front of the tunnel entrance, set to be second to first The at least one tension device of the n-section box culvert being pulled in the first direction and configured to be partially or fully At least one thrust device that is driven in the first direction by the box culvert entering the tunnel entrance, the tension device is connected between two adjacent box culverts, and the thrust device is disposed between two adjacent box culverts; The platform recess is provided with at least one pushing groove, and the box culvert relay pushing system further comprises at least one cable assembly disposed on the opposite end walls of the pushing groove in the first direction; the pushing device comprises At least one first jack disposed on the cable assembly, and a pusher frame assembly coupled between the first jack and a corresponding box culvert, the pusher frame assembly being partially received The pushing groove, the portion of the pushing frame assembly accommodated in the pushing groove is provided with at least one cable passing hole, the cable assembly passes through the wire guiding hole, and the pushing is carried A frame assembly that exposes a portion of the push-pull groove that is resisted or attached to the box culvert.

The working platform of the box culvert relay top pushing system with the push-pull frame assembly is arranged adjacent to the tunnel entrance, the box culvert is located on the working platform, the pushing device is arranged on the working platform and resists a box culvert, and the tension device is connected Between two adjacent box culverts, the thrust device is disposed between two adjacent box culverts, wherein the pushing device is arranged to push the box culvert to move in the first direction on the working platform; the tension device is set as a previous box The adhesion between the culvert and the pushing device connected to the box culvert is supported, and a section of the box culvert advances along the first direction after pulling; the thrust device is set to have the adhesion of the box culvert and the pushing device connected to the box culvert Support, push the front section of the box culvert in the first direction. The box culvert relay pushing system with the pusher frame assembly of the present application pulls the prefabricated second to nth box culverts from the prefabricated area thereof to the pushing region of the pushing device by providing a set of independent tensioning devices, thereby The situation that the pushing region of the pushing device extends to the rear end of the prefabricated region of the second to nth box culverts is avoided, thereby shortening the length of the pushing region of the pushing device, reducing the equipment handling distance and construction work. And, compared with the traditional box culvert pushing method, the construction technology of one prefabrication and one top pushing is adopted. The box culvert relay top pushing system with the pusher frame assembly is prefabricated and divided by the segment box culvert respectively. The construction technology of the section box culvert advances in turn, the thrust provided by the required mechanical equipment is greatly reduced, the setting of mechanical equipment miniaturization is realized, and the technical requirements of the equipment are lowered, and the stability of the equipment is improved;

In addition, the working platform is recessed with at least one pushing groove, and the box culvert relay pushing system further comprises at least one guiding cable assembly disposed on the opposite end walls of the pushing groove in the first direction, and the pushing device comprises sleeved on At least one first jack of the cable assembly, and a pusher frame assembly connected between the first jack and the corresponding box culvert, the opposite side walls of the pushing groove are provided by the top pushing groove The pushing direction of a jack plays a guiding role, avoiding the problem that the pushing device deviates from the preset pushing line during the pushing of the box culvert; the cable assembly is disposed in the pushing groove, and the cable assembly is avoided. The obstruction effect on the movement of the box culvert minimizes the influence of the cable assembly on the movement of the box culvert; in addition, by placing the pusher frame assembly between the first jack and the corresponding box culvert During the pushing process of the pushing device, the locking force provided by the first jack is locked to the cable assembly, and the driving force provided by the first jack to the pushing frame assembly is applied to the box culvert. , push the box culvert forward. The pusher frame assembly is partially received in the push-pull slot, and the portion of the push-pull frame assembly received in the push-pull slot is provided with at least one guide cable through hole, the cable assembly passes through the guide cable through hole, and the push-pull frame assembly is mounted. The pusher frame assembly exposes a portion of the push-pull groove that is resisted or connected to the box culvert, and the guide cable through hole is disposed to pass through the guide cable assembly, and the push-pull frame assembly is mounted on the guide cable assembly, which is convenient for the push-pull assembly Installation and disassembly.

Specifically, the box culvert relay jacking system with the pusher frame assembly of the present application may be set up in a box culvert construction with a large cross section and an oversized section, and the box shed which is advancedly supported and pushed into the box in the tunnel. The culvert supports the soil at the top of the excavated tunnel, which can effectively control the settlement within the construction scope and meet the construction requirements for strictly controlling the ground subsidence. In particular, for the loose and weak geological conditions such as reclamation, conventional underground excavation is adopted. The risk of collapse of the construction hole is large, and a large amount of temporary support is required. Therefore, the box culvert relay push system of the present application greatly simplifies the support work while ensuring the construction quality and the safety of the tunnel, and saves the existing work. In the dark excavation method, the time and cost of installing tunnel spray anchor support and temporary steel structure support works. And, for tunnel engineering under the existing infrastructure, the sectional box culvert pushing technology adopted by the box culvert relay jacking system of the present application greatly reduces the impact on the operation of the existing ground facilities. In addition, the box culvert relay pushing system of the present application prefabricates the reinforced concrete structure such as the working platform and the box culvert before and during the excavation process, and does not need to start the structural construction after the tunnel excavation is completed, shortening The overall construction period has outstanding economic benefits. And, the box culvert relay pushing system of the present application adopts three different effects power driving equipments, such as a pushing device, a tension device and a thrust device, to realize pre-fabrication and pushing of the segment in a narrow space, and the technology can be appropriately set. For more diverse construction sites and a wider range of geological conditions, it has greater promotional value.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and other drawings can be obtained according to the structures shown in the drawings without any creative work for those skilled in the art.

1 is a schematic structural view of a perspective view of an embodiment of a box culvert relay jacking system with a push-pull frame assembly according to the present application;

Figure 2 is a partial enlarged view of a portion A in Figure 1;

3 is a schematic structural view of a view of a box culvert in an embodiment of a box culvert relay jacking system with a pusher frame assembly according to the present application;

4 is a schematic structural view of another perspective view of the box culvert shown in FIG. 3;

Figure 5 is a partial cross-sectional view of the box culvert relay jacking system shown in Figure 1;

6 is a schematic structural view of another perspective view of the box culvert relay jacking system shown in FIG. 1;

Figure 7 is a partial enlarged view of B in Figure 6;

8 is a schematic structural view of still another perspective of the box culvert relay jacking system shown in FIG. 1;

Figure 9 is a partial enlarged view of a portion C in Figure 8;

10 is a partial assembly structural diagram of an embodiment of a box culvert relay jacking system with a push-pull frame assembly according to the present application;

Figure 11 is a partial enlarged view of the portion D in Figure 10;

Figure 12 is a schematic structural view of the pusher frame assembly shown in Figure 11;

13 is a schematic structural view of a first jack in an embodiment of a box culvert relay jacking system with a push-pull frame assembly according to the present application;

14 is a schematic structural view of a second jack connected to a connecting block in an embodiment of a box culvert relay jacking system with a push-pull frame assembly according to the present application;

15 is a schematic structural view of a working platform in a starting well in a top view of the box culvert relay jacking system shown in FIG. 1;

Figure 16 is a first step of the working process of the box culvert relay jacking system with the push-pull frame assembly of the present application;

Figure 17 is a second step of the working process of the box culvert relay jacking system with the pusher frame assembly of the present application;

Figure 18 is a third step of the working process of the box culvert relay jacking system with the push-pull frame assembly of the present application;

Figure 19 is a fourth step of the working process of the box culvert relay jacking system with the push-pull frame assembly of the present application;

Figure 20 is a fifth step of the working process of the box culvert relay jacking system with the push-pull frame assembly of the present application;

21 is a sixth step of the working process of the box culvert relay jacking system with the push-pull frame assembly of the present application;

Figure 22 is a seventh step of the working process of the box culvert relay jacking system with the push-pull frame assembly of the present application;

Figure 23 is a working process step 8 of the box culvert relay jacking system with the push-pull frame assembly of the present application;

Figure 24 is a step IX of the working process of the box culvert relay jacking system with the push-pull frame assembly of the present application;

Figure 25 is a step 10 of the working process of the box culvert relay jacking system with the pusher frame assembly of the present application;

Figure 26 is a step 11 of the working process of the box culvert relay jacking system with the pusher frame assembly of the present application.

Description of the reference numerals:

Label	name	Label	name
100	Box culvert relay push system	322	Connection via
10	Work platform	40	Tension device
11	Push groove	41	Pull cable assembly
121	Guide assembly	42	Puller
15	Prefabricated area	421	Second jack
16	Pushing area	4211	Third clamping part
20	Box culvert	4212	Fourth clamping part
twenty one	Connector	50	Thrust device
twenty two	Push block structure	60	Mobile agency
twenty three	aisle	61	Carrying platform
twenty four	Forced boss	62	Wheel
201	The first section of box culvert	621	Rotating shaft
202	The second section of box culvert	200	tunnel
203	The third section of box culvert	210	Tunnel entrance
204	The fourth section of box culvert	220	Tunnel exit
205	The fifth section of the box culvert	310	Starting well
206	The sixth section of box culvert	320	Arrival well
30	Jacking device	330	Pipe shed
31	First jack	340	Steel pipe pile
311	First clamping part	350	Existing ground facilities
312	Second clamping part	70	Connection component
32	Pusher frame assembly	71	Connector
321	Guide hole	72	Mounting mat

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

It should be noted that all directional indications (such as up, down, left, right, front, back, ...) in the embodiments of the present application are only set to explain between components in a certain posture (as shown in the drawing). Relative positional relationship, motion situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions of "first", "second", and the like in the present application are set for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.

In the present application, the terms "connected", "fixed" and the like should be understood broadly, unless otherwise explicitly stated and defined. For example, "fixed" may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.

The present application proposes a box culvert relay jacking system 100 having a pusher frame assembly 32.

Referring to FIG. 1 to FIG. 26, a box culvert relay jacking system 100 having a pusher frame assembly 32 according to an embodiment of the present application is configured to push the box culvert 20 into the tunnel 200, including adjacent to the tunnel entrance 210. The working platform 10, at least two sections of the box culvert 20 located above the working platform 10, defines a direction in which the box culvert 20 pushes into the tunnel 200 as a first direction, and defines a box culvert 20 respectively arranged in a second direction opposite to the first direction. For the first section of box culvert 201, ... and the nth section of box culvert, n ≥ 2, the first section of box culvert 201 and the second section of box culvert 202 are prefabricated first on the working platform 10, the first section of box culvert After the 201 and the second section of the box culvert 202 are both advanced in the first direction, the third section of the box culvert 203 is prefabricated at the initial position of the second section of the box culvert 202, to the first section of the box culvert 201 to the n-1th section of the box culvert After the 20th advances in the first direction, the nth section of the box culvert 20 is prefabricated at the initial position of the second section of the box culvert 202, and the box culvert relay jacking system 100 further includes a box culvert arranged to push the front of the tunnel entrance 210. At least one pushing device 30 of 20, at least one pulling device arranged to pull the second to nth segment of the box culvert 20 in the first direction 40 and at least one thrust device 50 arranged to push the box culvert 20 partially or completely into the tunnel entrance 210 in the first direction, the tension device 40 is connected between two adjacent box culverts 20, and the thrust device 50 is disposed at two Between the adjacent box culverts 20; the working platform 10 is recessed with at least one pushing groove 11 , and the box culvert relay pushing system 100 further comprises at least one opposite end wall disposed in the first direction on the pushing groove 11 The cable guide assembly 121; the pushing device 30 includes at least one first jack 31 sleeved on the cable assembly 121, and a pusher frame assembly connected between the first jack 31 and the corresponding box culvert 20 32, the push-pull frame assembly 32 is partially received in the push-pull slot 11 , and the portion of the push-pull frame assembly 32 received in the push-pull slot 11 is provided with at least one guide cable through hole 321 , and the cable guide assembly 121 passes through the guide cable through hole 321 . The pusher frame assembly 32 is mounted, and the pusher frame assembly 32 exposes a portion of the pusher groove 11 that is abutted or connected to the box culvert 20.

Specifically, the body of the box culvert 20 is a reinforced concrete structure. As shown in FIG. 1 to FIG. 26, the number of segments of the box culvert 20 of the present embodiment is six, and the box culvert relay pushing system 100 with the pusher frame assembly 32 of the present embodiment pushes the box in the first direction. The culvert 20 is: the first section of the box culvert 201, the second section of the box culvert 202, the third section of the box culvert 203, the fourth section of the box culvert 204, the fifth section of the box culvert 205, and the sixth section of the box culvert 206.

More specifically, in order to facilitate the construction of the box culvert 20 push tunnel 200, temporary shafts, corresponding site leveling work and stratum reinforcement work are required on both sides of the underlying area of the existing ground facility 350; as shown in Figs. As shown, both sides of the ground facility 350 are excavated with a departure well 310 and an arrival well 320. When the tunnel 200 is excavated, it is gradually excavated from the tunnel entrance 210 of the departure well 310, and exits from the tunnel after the tunnel 200 is completed. The excavation is carried out to the well 320. The existing ground facility 350 may be an existing ground facility such as a road or a railway, and is not particularly limited herein. The working platform 10 of the box culvert relay jacking system 100 of the present application is a reinforced concrete floor plate that is placed on site at a preset position in the starting well 310, and each section of the box culvert 20 in the jacking construction is in the starting well 310. Precast in the cast-in-place reinforced concrete.

As shown in FIG. 1 to FIG. 9, the steel pipe pile 340 is installed as a support for the starting shaft 310 and the side wall of the reaching well 320 to ensure the safety of the equipment and personnel at the construction site, and to ensure the normal operation of the jacking construction.

As shown in FIGS. 7 and 9, a pipe shed 330 is preliminarily provided above the tunnel 200 excavation. The pipe shed 330 is a row of steel pipes that are driven into the outer edge of the contour line of the tunnel before the tunnel 200 is excavated. Because the pipe shed 330 plays the role of beam arching and reinforcement in the stratum, it can effectively share the load generated by the surrounding rock of the vault and reduce the load on the stratum in front of the excavation face, thus effectively restraining the deformation of the surrounding rock and greatly reducing the deformation. The risk of the dome sinking and the excavation surface being unstable, therefore, the arrangement of the pipe shed 330 may provide an advanced support for the excavation of the weak formation in the opening section of the tunnel 200.

The working platform 10 of the box culvert relay jacking system 100 is disposed adjacent to the tunnel entrance 210, the box culvert 20 is located on the working platform 10, and the pushing device 30 is disposed on the working platform 10 and resists a box culvert 20, pulling force The device 40 is connected between two adjacent box culverts 20, and the thrust device 50 is disposed between two adjacent box culverts 20, and the pushing device 30 is arranged to push the box culvert 20 on the working platform 10 in the first direction. The moving, tensioning device 40 is arranged to support the adhesion of the previous section of the box culvert 20 and the pushing device 30 connected to the box culvert 20, and after the pulling, a section of the box culvert 20 advances in the first direction; the thrusting device 50 is set as a later box The adhesion of the culvert 20 to the pushing device 30 connected to the box culvert 20 is supported, and the front section of the box culvert 20 is advanced in the first direction; specifically,

Pre-fabricating the first section of the box culvert 201 and the second section of the box culvert 202 prior to the work platform 10;

The control pushing device 30 stops moving after the working platform 10 pushes the first section of the box culvert 201 to move to the end of the working platform 10 near the tunnel entrance 210, and the first section of the box culvert 201 enters the tunnel entrance. 210;

The control tension device 40 is supported by the adhesion provided by the first section of the box culvert 201 and the pushing device 30, and the second section of the box culvert 202 is moved in the first direction to the working platform 10 near the second section of the box culvert 202. a working position is vacated in the tail of one direction;

The pushing device 30 is moved to the working position, and the pushing device 30 is controlled to push the second segment of the box culvert 202 to move in the first direction to the tail of the first segment of the box culvert 201 away from the tunnel inlet 210; In the process, in the first prefabricated area of the second section of the box culvert 202, the prefabrication of the third section of the box culvert 203;

The thrust device 30 is installed at a preset position between the first section of the box culvert 201 and the second section of the box culvert 202, and is supported by the adhesion provided by the second section of the box culvert 202 and the pushing device 30 to push the first section. The box culvert 201 moves in the first direction within the tunnel 200;

Again, the control pushing device 30 pushes the second section of the box culvert 202 to advance in the first direction, the second section of the box culvert 202 partially or completely enters the tunnel entrance 210;

......

The above steps are repeated until the nth section of the box culvert 20 moves in the first direction to the tail of the n-1th section of the box culvert 20 and reaches the final position.

It should be noted that "the control tension device 40 is supported by the adhesion provided by the first section of the box culvert 201 and the pushing device 30, and the second section of the box culvert 202 is moved in the first direction to the working platform 10 near the second section. In the step of the box culvert 202 vacating a working position in the tail of the first direction, the working position can be set to accommodate and install the pushing device 30, etc., wherein the pulling device 40 pulls the second section of the box culvert 202 to move to the working platform After a working position is vacated near the tail of the second section of the box culvert 202 in the first direction, the removal of the pushing device 30 is reserved between the first section of the box culvert 201 and the second section of the box culvert 202. The space of the space, and the length of the rear pushing groove 11 of the box culvert 202 at the working position portion can accommodate the pushing device 30. Of course, the area where the working position is located may further include a prefabricated area provided to prefabricate the second stage box culvert 202. The space (all or part of), or the space for accommodating and installing other devices, or the space for construction of other processes, etc., the specific space and area of the work space are not specifically limited herein; Device 30 in the working position The second section of the box culvert 202 moves in a first direction to the tail of the first section of the box culvert 201 away from the tunnel entrance 210. The working position may be located at the initial position of the first section of the box culvert 201 or the initial section of the second section of the box culvert 202 The position, or the area between the initial position of the first section of the box culvert 201 and the initial position of the second section of the box culvert 202. That is, the area where the initial position of the second section of the box culvert 202 is far from the side of the tunnel entrance 210 does not need to reserve a working area, so that the pushing area of the pushing device 30 is prevented from extending to the second to nth stages. The rear end of the original prefabricated area of the box culvert 20 shortens the length of the pushing area of the pushing device 30, reducing the equipment handling distance and the amount of construction work.

Finally, each two adjacent box culverts 20 are reinforced and sealed by a casting process or the like, and the box culvert 20 passes through the tunnel 200. Specifically, when all the box culverts 20 are pushed to the final position, the cast-in-place reinforced concrete is used and grouted to form a unit. Therefore, in the connection position of the box culvert 20, a connection position, including a steel joint, a grouting pipe, etc., is reserved, and will not be repeated here.

During the jacking process of the previous section of the box culvert 20, the prefabrication of the next section of the box culvert 20 is continued. The time for prefabricating a section of box culvert 20 and the time for pushing a section of box culvert 20 are all controlled for the same length of time. To ensure such progress, the excavation and jacking work should be continued, so that the site, machinery and workers get the most Efficient use meets the requirements of a narrow construction site and greatly shortens the construction period.

In addition, the excavation of the tunnel 200 is gradually boring along the underside of the advancement support shed 330, and the tunneling speed of the tunnel 200 matches the advancement speed of the tank culvert 20. That is, the excavation of the tunnel 200 stratum should strictly control the excavation speed and the excavation position, and the length of the unprotected section between the front end of the box culvert 20 and the excavation surface of the tunnel 200 must not exceed a certain value. Of course, the certain value is determined by the specific application. The excavation site is determined.

In the specific construction process, the construction site is often narrow, and the start well 310 and the shaft that reaches the well 320 are difficult to excavate. The box culvert relay jacking system 100 having the pusher frame assembly 32 of the present application pulls the prefabricated second to nth section of the box culvert 20 from its prefabricated area to the pushing device 30 by providing a set of independent tensioning devices 40. Pushing the area, thereby avoiding the situation that the pushing region of the pushing device 30 extends to the prefabricated area of the second to nth sections of the box culvert 20, thereby shortening the length of the pushing area of the pushing device 30, reducing the equipment The carrying distance and the amount of construction work; and, compared with the traditional box culvert top pushing method, the construction technology of one prefabrication and one push pushing is used. The box culvert relay pushing system 100 of the present application is prefabricated by the segment box culvert 20 respectively. The construction technology of the stepped box culvert 20 is sequentially advanced, and the thrust provided by the required mechanical equipment is greatly reduced, the setting of mechanical equipment miniaturization is realized, and the technical requirements of the equipment are lowered, and the stability of the equipment is improved.

In addition, referring to FIG. 1 , FIG. 2 , FIG. 5 , FIG. 10 to FIG. 12 , and FIG. 15 to FIG. 26 , the working platform 10 is recessed with at least one pushing groove 11 , and the box culvert relay pushing system 100 . The cable assembly 121 further includes at least one first jack 31 disposed on the opposite end walls of the pusher slot 11 in the first direction, and the connecting device 30 includes at least one first jack 31 sleeved on the cable assembly 121, and is connected to The pushing frame assembly 32 between the first jack 31 and the corresponding box culvert 20; specifically, the region of the working platform 10 where the pushing groove 11 is located forms a pushing region 16 for ensuring the pushing device 30 Providing a stable driving force, the first jack 31 is sleeved on the cable assembly 121, and by providing the pushing groove 11, the opposite side walls of the pushing groove guide the propulsion direction of the first jack 31. The problem that the pushing device 30 deviates from the preset pushing line during the pushing of the box culvert 20 is avoided; the cable assembly 121 is disposed in the pushing groove 11 to avoid the movement of the cable assembly 121 to the box culvert 20 The obstruction effect in the process minimizes the influence of the cable assembly 121 on the movement of the box culvert 20; The frame assembly 32 is disposed between the first jack 31 and the corresponding box culvert 20, and the locking force provided by the first jack 31 is locked by the first cable jack 31 during the pushing process of the pushing device 30. For support, the urging force provided to the pusher frame assembly 32 by the first jack 31 is applied to the box culvert 20 to advance the box culvert 20. Here, the cable assembly 121 can at least play the role of: pushing the guiding device 30, avoiding the obstruction of the cable assembly 121 during the movement of the box culvert 20, and minimizing the cable assembly. The influence of 121 on the movement process of the box culvert 20; compared with the structure of the reaction wall and the like set in the traditional box culvert pushing construction, the cable guide assembly 121 of the box culvert relay pushing system 100 of the present application is hidden and contained in the pushing In the tank 11, the space of a narrow construction site and the like are utilized more efficiently.

The pusher frame assembly 32 is partially received in the push-pull slot 11 , and the portion of the push-pull frame assembly 32 received in the push-pull slot 11 is provided with at least one guide wire through hole 321 , and the cable guide assembly 121 passes through the guide wire through hole 321 . The pusher frame assembly 32 is mounted, and the pusher frame assembly 32 exposes a portion of the pusher groove 11 that is abutted or connected to the box culvert 20. Specifically, the guide wire through hole 321 is disposed to pass through the wire guide assembly 121, and the pusher frame assembly 32 is mounted on the wire guide assembly 121 to facilitate the mounting and dismounting of the pusher frame assembly 32, optionally, as shown in FIG. As shown, the guide via 321 is of a "gate" shape, that is, the bottom end of the guide via 321 is of an open design with a downward opening, and the mounting of the pusher frame assembly 32 is quicker and easier.

The box culvert relay jacking system 100 with the pusher frame assembly 32 of the present application may be configured to be used for jacking construction of a large section and an oversized section of the box culvert, using the tube shed 330 of the advanced support and pushing into the tunnel 200. The box culvert 20 supports the soil at the top of the excavated tunnel 200, which can effectively control the settlement within the construction scope and meet the construction requirements for strictly controlling the ground subsidence. In particular, for loose and weak geological conditions such as reclamation, conventional The construction method of the underground excavation method has a large risk of collapsing and requires a large amount of temporary support. Therefore, the box culvert relay push system 100 of the present application greatly simplifies the support work while ensuring the construction quality and the safety of the tunnel 200, and saves Among the existing undercut methods, the time and cost of installing tunnel spray anchor support and temporary steel structure support works. Moreover, for the tunneling project under the existing infrastructure, the sectional box culvert pushing technology adopted by the box culvert relay jacking system 100 of the present application greatly reduces the impact on the operation of the existing ground facility 350. In addition, the box culvert relay pushing system 100 of the present application performs prefabrication work of the reinforced concrete structure such as the working platform 10 and the box culvert 20 before excavation and excavation, without starting after the excavation of the tunnel 200 is completed. Structural construction shortens the overall construction period and has outstanding economic benefits. And the box culvert relay pushing system 100 of the present application adopts three different effects power driving equipments, such as the pushing device 30, the tension device 40 and the thrust device 50, to realize pre-fabrication and pushing of the segment in a narrow space. The technology can be set to a more diverse construction site and a wider range of geological conditions, so it has a greater promotion value.

Optionally, the number of the pushing devices 30 is two, and the two pushing devices 30 are spaced apart against the tail of the box culvert 20 in the first direction, and the driving output by the two pushing devices 30 is controlled. The force causes the process of pushing the box culvert 20 in the first direction to proceed steadily, avoiding the problem that the box culvert 20 pushes the line to deviate; or the number of the pushing device 30 is three, and the three pushing devices 30 are spaced apart. Resisting the tail portion of the first culvert 20 in the first direction, by controlling the thrust respectively output by the three pushing devices 30, the process of advancing the box culvert 20 in the first direction is performed steadily, avoiding the box culvert 20 propulsion line There is a problem of deviation, and with respect to the situation of the two thrusting devices 30, the three thrusting devices 30 are provided to increase the total thrust of the thrusting device 30 while ensuring the balance of the thrust, and the pushing process is smoother and faster. . Of course, in a specific application, the number of the pushing devices 30 may be increased or decreased, and is not particularly limited herein.

Similarly, the number of the tension devices 40 may also be two or three, and two or three tension devices 40 are connected between two adjacent box culverts 20 by controlling the two or three. The tension force outputted by the tension device 40 respectively ensures that the process of pulling the box culvert 20 in the first direction is steadily performed while ensuring that the tension device 40 provides sufficient pulling force, thereby avoiding the problem that the box culvert 20 is pulled away from the line, of course. In the specific application, the number of the tension devices 40 may be increased or decreased, and is not particularly limited herein.

Similarly, the number of the thrust devices 50 may be plural. The plurality of thrust devices 50 are disposed between two adjacent box culverts 20, and the tensions respectively output by the plurality of thrust devices 50 are controlled. In the case that the thrust device 50 is provided with sufficient thrust, the process of advancing the box culvert 20 in the first direction in the tunnel 200 is performed steadily, thereby avoiding the problem of deviation of the propulsion line of the box culvert 20, of course, in specific applications, the thrust The number of the devices 50 may also be increased or decreased, and is not particularly limited herein.

In addition, referring to FIG. 1 , FIG. 2 , FIG. 5 , FIG. 10 to FIG. 12 , and FIG. 15 to FIG. 26 , each box culvert 20 in the embodiment is provided with at least one push block structure 22 and a box culvert. The relay jacking system 100 further includes at least one connection assembly 70 that connects the push block structure 22 and the pusher frame assembly 32. One end of the connection assembly 70 is fixed or abutted against the surface of the push block structure 22 away from the pusher frame assembly 32, and One end of the pushing block structure 22 and the pusher frame assembly 32 exposing the portion of the pushing groove 11 in sequence is fixed or abutted against the surface of the pusher frame assembly 32 away from the push block structure 22. Specifically, since the box culvert 20 is the main road surface carrier after the construction in the tunnel 200 is completed, it is limited by the structural arrangement of the box culvert 20 itself, in order to better provide a mounting position for the installation of the pushing device 30, and Stabilization of the thrusting device 30 provides a connection to the box culvert 20 that connects the thrusting device 30 to the push block structure 22. In addition, by providing one end of the connecting component 70 fixed or resisted to the surface of the push block structure 22 away from the push-pull frame assembly 32, the other end sequentially penetrates the push block structure 22 and the push-pull frame assembly 32 to expose the portion of the push-pull slot 11 Fixed or resisted to the surface of the pusher frame assembly 32 away from the push block structure 22, the portion of the pusher frame assembly 32 that is exposed to the pusher slot 11 by the connection assembly 70 is firmly connected to the push block structure 22, and the pusher frame assembly is improved. The reliability of the connection of 32 ensures the stable advancement of the thrusting device 30.

Further, as shown in FIG. 5 to FIG. 12, in the embodiment, the portion of the push-pull frame assembly 32 that exposes the push-pull slot 11 is provided with at least one connecting via 322, and one end of the connecting component 70 is fixed or resisted. A push block structure 22 is away from the surface of the pusher frame assembly 32, and the other end sequentially penetrates the push block structure 22 and the connection via 322 to fix or abut against the peripheral edge of the hole wall connecting the through hole 322 away from the end of the push block structure 22. Specifically, the connecting via hole 322 is formed through the portion of the push-pull frame assembly 32 that exposes the pushing groove 11. The connecting through hole 322 is disposed to pass through the connecting component 70, facilitating the mounting and dismounting of the connecting component 70, and improving the connection. The efficiency of assembly and disassembly of assembly 70 and pusher frame assembly 32. Optionally, as shown in FIG. 12, the connecting via 322 is in the form of an inverted "gate" shape, that is, the upper end of the connecting via 322 is an open design with an upward opening, which facilitates the passage of the connecting component 70, and is connected. The assembly of the assembly 70 and the pusher frame assembly 32 is quicker and easier.

Further, as shown in FIG. 5 and FIG. 11 , in the present embodiment, the connecting component 70 includes at least one mounting pad 72 that abuts against the periphery of the hole wall of the connecting hole 322 away from the end of the pushing block structure 22 , and At least two spaced apart connecting members 71, one end of each connecting member 71 abuts against the surface of the push block structure 22 away from the push-pull frame assembly 32, and the other end sequentially penetrates the push block structure 22, the connecting via 322 and the mounting pad 72, And resisting the mounting pad 72 away from the surface of the pusher frame assembly 32. Specifically, by providing the connecting via 322, the mounting and dismounting of the connecting member 71 is facilitated to improve the efficiency of attaching and detaching the pusher frame assembly 32. By providing the mounting pad 72, at least the following advantages are obtained: 1. The mounting pad 72 is increased. The contact area of the connecting member (here, the connecting member 71) such as a bolt or a nut with the mounting surface (here, the surface of the pusher frame assembly 32) is prevented, and the mounting surface (here, the surface of the pusher frame assembly 32) is prevented. The mounting pad 72 has a certain elasticity. During the process of tightening and fixing the connecting member 71, the mounting pad 72 is elastically deformed, and the elastic deformation can prevent the connecting member 71 from loosening. Further The connection reliability of the connecting member 71 is improved. Optionally, the connecting member 71 is a structure such as a screw, a bolt or a connecting post, and is not particularly limited herein; as shown in FIG. 5 and FIG. 11 , the mounting pad 72 has a structure of “work” shape, which is anti-wear and anti-proof. The effect of the pine is better, of course, in the specific application, the mounting pad 72 can also adopt other various shapes according to the actual use situation, and is not particularly limited herein.

Further, referring to FIG. 3 to FIG. 5, each box culvert 20 has a passage 23, and the push block structure 22 is disposed on the bottom wall of the passage 23; specifically, the push block structure 22 is set as a temporary reinforced concrete structure, In order to ensure the strength of the push block structure 22, after the use of the push block structure 22 is completed, the push block structure 22 can be removed; the push block structure 22 is disposed on the bottom wall of the channel 23, facilitating the push block structure 22 and the pushing device 30. The mounting connection, at the same time, facilitates the pouring formation of the push block structure 22 and facilitates the removal of the push block structure 22.

Further, as shown in FIG. 3 to FIG. 5 , at least one force receiving protrusion 24 is protruded from the end of each box culvert 20 near the pushing device 30 , and the pushing device 30 is pressed against the force receiving boss. twenty four. Specifically, the force receiving boss 24 functions to mainly receive the thrust from the pushing device 30, and the force receiving boss 24 protrudes from the end of the box culvert 20 to provide a setting for the pushing device 30 to abut. The contact surface is affected and the structural design is reasonable and effective. More specifically, as shown in FIG. 5, the heights of the push block structure 22, the force receiving boss 24, and the wire guide assembly 121 are sequentially decreased, so that the force receiving boss 24 mainly receives the thrust from the thrust device 30, and The push block structure 22 is disposed to be fixedly coupled to the pushing device 30, and balances the force applied by the pushing device 30 on the portion of the wire guide assembly 121.

Further, referring to FIG. 5, FIG. 11, and FIG. 12, the thickness of the portion of the pusher frame assembly 32 accommodated in the thrust groove 11 in the first direction is smaller than the portion of the pusher frame assembly 32 connected to the push block structure 22. Optionally, the thickness of the pusher frame assembly 32 received at one end of the pusher slot 11 to the end of the push block structure 22 is gradually reduced to ensure the strength of the pusher frame assembly 32 and In the case of rigidity, by reducing the thickness of the one end of the pusher frame assembly connected to the push block structure 22, the material is saved and the weight of the pusher frame assembly 32 is reduced.

Further, as shown in FIG. 5 and FIG. 11 , the box culvert relay pushing system 100 of the present embodiment further includes at least one moving mechanism 60 movably disposed on the pushing groove 11 , the first The jack 31 is mounted on the moving mechanism 60. Here, the provided moving mechanism 60 can also serve to support the pushing device 30, and reduce the influence of the gravity of the pushing device 30 on the cable assembly 121. Wherein, the first jack 31 is arranged to be mounted on the moving mechanism 60, which facilitates the movement of the first jack 31 on the stroke thereof during the pushing process of the pushing device 30, or moves the pushing device 30 to the next segment. When the tail of the box culvert 20 is subjected to the next pushing operation, the movement of the first jack 31 is facilitated; the moving mechanism 60 can also serve as a supporting support for the pushing device 30, and the first jack 31 is reduced. The effect of gravity on the cable assembly 121.

It should be noted that the pusher frame assembly 32 is detachably coupled to the first jack 31, and the first jack 31 can be locked to the guide cable assembly 121 or moved relative to the guide cable assembly 121. When the pushing device 30 pushes the end of the pushing process, the pusher frame assembly 32 is disassembled, and the first jack sleeved on the wire guide assembly 121 is moved in the second direction. 31. The first jack 31 is moved to the tail of the lower section of the box culvert 20, and the pusher frame assembly 32 is mounted to the guide cable assembly 121 and connected or resisted to the first jack 31 and the next section of the box culvert. Between the tails of the 20, the pushing device 30 prepares for the pushing step of the next section of the box culvert 20.

Further, referring to FIG. 5 and FIG. 11 , the moving mechanism 60 of the present embodiment includes a carrying platform 61 on which the first jack 31 is mounted, and at least one roller 62 disposed on the bottom wall of the pushing groove 11 . The roller 62 is rotatably coupled to the carrier 61. Specifically, the provided loading platform 61 is configured to carry the first jack 31, reduce the influence of the gravity of the first jack 31 on the cable assembly 121, and the provided roller 62 is rotatably connected to the loading platform 61. The movement of the moving mechanism 60 is realized by the rolling of the roller 62, the movement is convenient and fast, the required moving thrust is small, the structure is simple, and the design is reasonable and practical.

Further, referring to FIG. 11 , the roller 62 has a rotating shaft 621 . The two ends of the rotating shaft 621 are rotatably connected to the carrying platform 61 , that is, the roller 62 is rotatably connected to the carrying platform 61 via the rotating shaft 621 , and the structure is simple and practical. .

Further, referring to FIG. 2 and FIG. 15, the working platform 10 is further provided with a prefabricated area 15 which is disposed adjacent to one end of the pushing groove 11 away from the tunnel inlet 210, or the prefabricated area 15 is located in the pushing groove. 11 is away from one end of the tunnel entrance 210. Here, the prefabricated zone 15 is provided as a prefabricated site for the second to nth sections of the box culvert 20. That is, the first section of the box culvert 201 of the present embodiment performs prefabrication of the box culvert 20 in the pushing region 16, and the remaining sections of the box culvert 20 are prefabricated in the prefabricated area 15 which is rearward in the first direction.

Specifically, the length of the box culvert 20 of each section is determined according to factors such as the actual total length of the tunnel 200 to be traversed, the size of the jacking field, and the thrust of the thrusting device. For example, when the total length of the tunnel 200 is about 70 m, the length of the site in the starting well 310 that can be set for the prefabrication of the box culvert 20 and the jacking process of the box culvert 20 is about 50 m. In the specific application, considering the weight of the box culvert 20, the maximum thrust provided by the pushing device 30 and the thrust device 50, the maximum pulling force provided by the tension device 40, and the working process of the pushing device 30, the thrust device 50 and the tension device 40 Factors such as propulsion resistance in the middle, each box culvert 20 should not be too long, an average of about 15m. The first section of the box culvert 201 is prefabricated in the pushing area 16, and the remaining sections of the box culvert 20 are prefabricated in the prefabricated area 15, and the subsequent sections of the box culvert 20 are pulled to the pushing area 16 by the tensioning device 40, so the length of the pushing area 16 is about 30m, no need to extend to the end of the prefabricated area 15. More specifically, a certain range of space is maintained between the pushing region 16 and the prefabricated zone 15 to ensure normal operation of other working procedures, such as displacement of the pusher frame assembly 32, excavation of soil, and prefabricated materials. Lifting and so on.

Further, the cable assembly 121 of the present embodiment includes a plurality of guide wires (not shown), and the plurality of guide wires are arranged side by side with each other, and the plurality of guide wires are adjacent to each other and are approximately cylindrical, that is, the circumference of the cable assembly 121 When a plurality of guide wires are enclosed to form a ring, when the first jack 31 is sleeved and locked to the cable assembly 121, the force of the first jack 31 can be better, and the locking is more effective; In the ground selection, the guide wire is a steel strand, and the guide cable assembly 121 is formed by twisting a plurality of steel strands. Further, referring to FIG. 11 and FIG. 13 together, the first jack 31 has a first clamping portion 311 adjacent to the pusher frame assembly 32 and a second clamping disposed opposite the first clamping portion 311. The first clamping portion 311 and the second clamping portion 312 are sleeved on a cable assembly 121. The first clamping portion 311 is gripped or loosened on the cable assembly 121, and the second clamping portion 312 is gripped. Tightened or loosened to the guide assembly 121.

Specifically, the first clamping portion 311 and the second clamping portion 312 can both "hold" the cable assembly 121 by self-grip, or loosen to the cable assembly 121; when pushed, the second clamping The portion 312 is gripped by the cable assembly 121 to provide a locking force, the first clamping portion 311 is loosened to the cable assembly 121, and the first jack 31 is provided to the pusher frame assembly 32 by a pushing force. The assembly 32 pushes the box culvert 20 to advance in the first direction, thereby realizing the advancement of the box culvert 20; after the first jack 31 is pushed up, the first clamping portion 311 is gripped by the guide cable assembly 121 to provide a locking force. The second clamping portion 312 is loosened to the cable assembly 121 to return the piston of the first jack 31 for preparation for the next jacking operation.

More specifically, the second clamping portion 312 is coupled to the piston of the first jack 31 and lifts as the piston moves. After the piston reaches the farthest end of the stroke, the first clamping portion 311 is tightened, the second clamping portion 312 is relaxed, and the piston is returned to the next cycle.

The steps of the prefabrication and pushing process of the box culvert 20 of the box culvert relay pushing system 100 of the pusher frame assembly 32 of the present application are as follows:

The dotted line frame as shown in FIGS. 16 to 26 is the position of the steel pipe pile at the edge of the starting well 310. The dotted line frame (that is, the inside of the starting well 310) is set as the working platform 10 prefabricated and the box culvert 20 is Push the venue.

As shown in FIG. 16, in the first step of the working process of the box culvert relay jacking system 100, the first section of the box culvert 201 and the second section box are prefabricated before the pushing area 16 and the prefabricating area 15 of the working platform 10, respectively. The culvert 202; after the prefabrication is completed, the pusher frame assembly 32 of the pushing device 30 is mounted and coupled to the first jack 31 (wherein the first jack 31 penetrates the guide cable assembly 121 in the pushing groove 11) And installing), and placing the pushing device 30 at the tail of the first section of the box culvert 201 for preparing the pushing of the first section of the box culvert 201 by the pushing device 30;

As shown in FIG. 17, in the second step of the working process of the box culvert relay jacking system 100, the thrust of the pushing device 30 is controlled to push the first section of the box culvert 201 from its original prefabricated position into the figure. The position of the first section of the box culvert 201;

As shown in FIG. 18, in the third step of the working process of the box culvert relay jacking system 100 of the present application, after the pushing of the pushing device 30 of the second step is finished, the pushing device 30 remains resisted to the first section of the box culvert 201. At the rear end, the two ends of the tension device 40 are installed between the first section of the box culvert 201 and the second section of the box culvert 202, and then supported by the adhesion provided by the first section of the box culvert 201 and the pushing device 30. Controlling the tension device 40 to pull the second section of the box culvert 202 from the prefabricated area 15 to the pushing area 16;

As shown in FIG. 19, in step 4 of the working process of the box culvert relay jacking system 100, part or all of the pushing device 30 is disassembled, and the pushing device 30 is moved and mounted to the second box culvert 202. The tail portion is prepared for the pushing of the second section of the box culvert 201 by the pushing device 30;

As shown in FIG. 20, in the fifth step of the working process of the box culvert relay jacking system 100, the thrust of the pushing device 30 is controlled to push the second box culvert 202 to the second box culvert 202. The first part is connected with the tail of the first section of the box culvert 201; during the second stage of the box culvert 202, the third section of the box culvert 203 is prefabricated at the prefabricated area 15 where the second section of the box culvert 202 was originally located;

As shown in FIG. 21, in the sixth step of the working process of the box culvert relay jacking system 100, the thrust device 50 is installed at a reserved slot between the first section of the box culvert 201 and the second section of the box culvert 202. By controlling the thrust device 50 to support the adhesion of the second section of the box culvert 202 and the pushing device 30, and pushing the first section of the box culvert 201 to advance a predetermined distance in the first direction, again, the control thrust device 50 pushes the second section. The box culvert 202 advances in the first direction, and then the control pushing device 30 pushes the second section of the box culvert 202 to advance in the first direction, such that the cycle is repeated one to many times until the first section of the box culvert 201 and the second section of the box culvert 202 moves to The position shown in the figure;

As shown in FIG. 22, in the seventh step of the working process of the box culvert relay jacking system 100, after repeating the above steps, to the illustration, the first section of the box culvert 201, the second section of the box culvert 202, and the third The section box culvert 203 and the fourth section box culvert 204 have completely entered the tunnel 200; wherein the second section of the box culvert 202 is supported by the thrust device 50 between the first section of the box culvert 201 and the second section of the box culvert 202 Promoting the first section of the box culvert 201 to advance in the first direction; similarly, using the thrust device 50 between the second section of the box culvert 202 and the third section of the box culvert 203, the third section of the box culvert 203 is used as a support to promote the The second section of the box culvert 202 is advanced in the first direction. In addition, the third section of the box culvert 203 and the fourth section of the box culvert 204 are propelled in the tunnel 200 in the same manner;

At this time, the pushing device 30 pushes the fifth section of the box culvert 205, and the fifth section of the box culvert 205 enters the tunnel 200;

As shown in FIG. 23, in the eighth step of the working process of the box culvert relay jacking system, the two ends of the tension device 40 are installed between the fifth section box culvert 205 and the sixth section box culvert 206, and then The adhesion of the fifth section of the box culvert 205 and the pushing device 30 is supported, and the sixth section of the box culvert 206 is pulled from the prefabricated area 15 to the pushing area 16 by controlling the tensioning device 40;

As shown in FIG. 24, in step IX of the working process of the box culvert relay jacking system 100, part or all of the pushing device 30 is disassembled, and the pushing device 30 is moved and mounted to the sixth box culvert 206. The tail portion is prepared for pushing the sixth section of the box culvert 206 by the pushing device 30;

As shown in FIG. 25, in the tenth step of the working process of the box culvert relay jacking system 100, the thrust of the pushing device 30 is controlled to push the sixth section of the box culvert 206 to the sixth section of the box culvert 206. The first portion is connected to the tail of the fifth section of the box culvert 205;

As shown in FIG. 26, in step 11 of the working process of the box culvert relay jacking system 100, the thrust device 50 is installed in a reserved slot between the fifth section of the box culvert 205 and the sixth section of the box culvert 206. Firstly, by controlling the thrust device 50 to support the adhesion of the second to sixth sections of the box culvert 206 and the pushing device 30, the first section of the box culvert 201 is pushed forward by a predetermined distance in the first direction, and again, by controlling the thrust The device 50 is supported by the adhesion of the third to sixth sections of the box culvert 206 and the pushing device 30 to push the second section of the box culvert 202 to advance a predetermined distance in the first direction; likewise, until the thrusting device 50 is in the sixth section The adhesion of the culvert 206 and the pushing device 30 is a support, pushing the fifth section of the box culvert 205 to advance a predetermined distance in the first direction, and then controlling the pushing device 30 to push the sixth section of the box culvert 206 to advance in the first direction, and again controlling the thrust The device 50 pushes the second section of the box culvert 202 to advance in the first direction, and thus cycles one to many times until the first section of the box culvert 201 to the sixth section of the box culvert 206 moves to the final position shown in the figure, completing the entire multi-section box Trunk 20's relay push process, push all part of the construction End.

Further, as shown in FIG. 2, FIG. 18 and FIG. 23, each box culvert 20 of the present embodiment is provided with at least one connecting block 21, and one end of the tension device 40 is connected to the connecting block 21 of a box culvert 20. The other end is connected to the connection block 21 of another box culvert 20 adjacent thereto. Specifically, at least one connecting block 21 is disposed on each of the box culverts 20, and the two ends of the tensioning device 40 are respectively connected to the connecting blocks 21 of the two adjacent box culverts 20, and the connections of the two adjacent box culverts 20 are respectively connected. The block 21 is arranged to provide a supporting point and a pulling point for the pulling process of the tension device 40; more specifically, the front section of the box culvert 20 arranged in the first direction is a supporting point, and the pulling device 40 applies The rear section of the box culvert 20 is such that the rear section of the box culvert 20 is displaced relative to the front section of the box culvert 20, that is, the rear section of the box culvert 20 is advanced in the first direction and enters the pushing unit 16 as the pushing device 30. The push work is getting ready.

Wherein, the connecting block 21 can be disposed on the inner wall of the box culvert 20, optionally, as shown in FIG. 2, the connecting block 21 is disposed on the bottom wall of the inside of the box culvert 20, and the connecting block 21 is set as a temporary reinforced concrete structure, The strength of the connection block 21 is ensured; after the use of the connection block 21 is completed, the connection block 21 can be removed.

Further, the tension device 40 of the present embodiment includes at least one tension cable assembly 41 and at least one tension device 42. One end of the tension cable assembly 41 is connected to the connection block 21 of a box culvert 20, and the other end is movably penetrated adjacent thereto. The connection block 21 of the other box culvert 20 is connected to a tensioner 42. Specifically, the front section of the box culvert 20 of the box culvert 20 where the tensioner 42 is located is a supporting point, the tensioner 42 is abutted against the corresponding connecting block 21, and one end of the tension cable assembly 41 connected thereto is pulled, so that the connecting block 21 is opposite. The tension cable assembly 41 is displaced, that is, the corresponding box culvert 20 of the connecting block 21 is advanced in the first direction and enters the pushing region 16 to prepare for the pushing operation of the pushing device 30.

Further, referring to FIG. 14, FIG. 18 and FIG. 23, the tensioner 42 includes a second jack 421 having a third clamping portion 4211 and a portion adjacent to the connecting block 21 corresponding thereto. The third clamping portion 4212, the third clamping portion 4211 and the fourth clamping portion 4212 of the three clamping portions 4211 are respectively sleeved on a tension cable assembly 41, and the third clamping portion 4211 is gripped or loosened. The tension cable assembly 41, the fourth clamping portion 4212 is gripped or loosened by the tension cable assembly 41.

Further, the tension cable assembly 41 of the present embodiment includes a plurality of tension cables (not shown), and the plurality of tension cables are arranged side by side, and the plurality of tension cables are adjacent to each other and are approximately cylindrical, that is, the circumference of the tension cable assembly 41. A plurality of tension cables are enclosed to form a ring. When the tensioner 42 is sleeved and locked to the tension cable assembly 41, the force of the tensioner 42 is better and the locking is more effective; optionally, the tension cable is a steel wire. The wire and tension cable assembly 41 is formed by twisting a plurality of steel strands with each other.

Specifically, the third clamping portion 4211 and the fourth clamping portion 4212 can both "hold" the tension cable assembly 41 by self-grip, or loosen the tension cable assembly 41; during the pulling process of the box culvert 20, The fourth clamping portion 4212 is gripped by the tension cable assembly 41 to provide a locking force, the third clamping portion 4211 is loosened to the tension cable assembly 41, and the second jack 421 is provided to the corresponding connecting block 21 with a driving force. Pulling the corresponding box culvert 20 forward in the first direction through the connecting block 21, thereby realizing the back force provided by the previous section of the box culvert 20 and the pushing frame assembly 32 abutting the box culvert 20, and pulling the latter section The box culvert 20 advances in the first direction; after the second jack 421 pulls the rear section of the box culvert 20, the third clamping portion 4211 is gripped by the tension cable assembly 41 to provide a locking force, and the fourth clamping portion 4212 The tension cable assembly 41 is loosened to return the piston of the second jack 421 to prepare for the next pulling operation.

More specifically, the fourth clamping portion 4212 is coupled to the piston of the second jack 421 and lifts as the piston moves. After the piston reaches the farthest end of the stroke, the third clamping portion 4211 is tightened, the fourth clamping portion 4212 is relaxed, and the piston is returned to prepare for the next cycle.

It should be noted that, after the process of pulling the box culvert 20 is completed, the tension device 40 can be detached, and wait for the next pull-in process of the box culvert 20 to start installation and use.

Further, in order to ensure the smooth pushing of the box culvert 20 by the pushing device 30, the length of the cable assembly 121 in the first direction is greater than the second to the nth box culvert 20 in the present embodiment. The length in one direction. Specifically, the first section of the box culvert 201 is prefabricated in the jacking zone 16, so that the first section of the box culvert 201 can be pushed up in the first direction only by the pushing device 30. Therefore, when the first section of the box culvert 201 is prefabricated The prefabricated position of the first section of the box culvert 201 may be partially located above the cable assembly 121, and the remaining part is located at one end of the working platform 10 near the tunnel entrance 210. Therefore, the length of the first section of the box culvert 201 in the first direction may be Greater than the length of the cable assembly 121 in the first direction. It can be understood that the length of the first length of the box culvert 201 in the first direction can also be less than or equal to the length of the cable assembly 121 in the first direction. And, since any one of the second to nth sections of the box culvert 20 needs to pass through the prefabrication process, the pulling process of the tension device 40, and the pushing process of the pushing device 30, in the second to nth box When any one of the culverts 20 is turned to the pushing process of the pushing device 30 by the pulling process of the pulling device 40, the pushing device 30 needs to be moved and installed at the tail end of the box culvert 20, and Limiting the pushing device 30 and the cable assembly 121, the length of any of the second through n-th box culverts 20 in the first direction is less than the length of the cable assembly 121 in the first direction.

Further, in order to ensure that the thrust device 50 provides a stable driving force, the thrust device 50 includes at least one third jack (not shown), the third jack is located between two adjacent box culverts 20, and the third Both ends of the jack are respectively abutted or connected to two adjacent box culverts 20. Optionally, the header and the tail of each box culvert 20 in the first direction are respectively provided with matching reserved slots (not shown) to be arranged to move to the front of the rear section of the box culvert 20 When a tail portion of the box culvert 20 is at least one third jack is installed in the reserved slot; when all the propulsion steps of the box culvert 20 are completed and the connection of the box culvert 20 is started, the reserved slot is Place the seal at the place. Specifically, during the pushing process of the thrust device 50, the reaction force provided by the rear box culvert 20 and the pushing device 30 is used as the supporting force, and the front portion of the box culvert 20 is advanced by the third jack. In a specific application, both ends of the third jack are resisted between two adjacent box culverts 20; or one end of the third jack is resisted by one of the two adjacent box culverts 20 The other end is connected to the other of the two; or, the two ends of the third jack are connected between the two adjacent box culverts 20, of course, the specific application can be set according to the actual situation. There is no particular limitation here.

Further, the working platform 10 of the embodiment is provided with a lubricating layer, and by providing a lubricating layer, the frictional resistance between the box culvert 20 and the ground when the box culvert 20 moves is reduced to reduce the top thrust or pulling force of the power mechanical device, and the power Mechanical equipment can be miniaturized. Optionally, the lubricating layer is composed of snow oil and thin wood board. Of course, in the specific application, the lubricating layer may also adopt other materials having lubricating properties, which are not particularly limited herein. Specifically, before the start of the prefabrication of the box culvert 20, the site of the work platform 10 is cleaned, and then the snow oil is uniformly applied in the prefabricated area of the prefabricated box culvert 20, and the thin oil is covered on the snow oil to reduce The frictional resistance between the box culvert 20 and the ground of the work platform 10 when the box culvert 20 moves.

Optionally, the first jack 31, the second jack 421, and the third jack are all hydraulic jacks; specifically, the first jack 31, the second jack 421, and the third jack The resulting hydraulic system is controlled by electronic technology. More optionally, the number of the first jack 31, the second jack 421, and the third jack may be one or more. Optionally, the number of the first jack 31, the second jack 421, and the third jack are multiple, and the hydraulic pump of each first jack 31 is controlled in time by electronic technology control. The load is used to keep the corresponding displacement of the tank culvert 20 synchronized, and the stroke of each piston can be recorded in real time; or, by using electronic technology control, the load of the hydraulic pump of each second jack 421 can be controlled in time to maintain the corresponding The 20-cylinder displacement of the box culvert can be recorded in real time, or the stroke of each piston can be recorded in real time; or, by using electronic technology control, the load of the hydraulic pump of each third jack can be controlled in time to maintain the displacement of the corresponding tank culvert 20 Synchronized and the stroke of each piston can be recorded in real time.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the patents of the present application, and the equivalent structural transformation, or direct/indirect use, of the present application and the contents of the drawings is used in the present invention. All other related technical fields are included in the patent protection scope of the present application.

Claims (15)

1. A box culvert relay jacking system with a pusher frame assembly, configured to propel a tank culvert into a tunnel, wherein a working platform disposed adjacent to the tunnel entrance, and at least two tank culverts located on the working platform Defining a direction in which the box culvert is pushed into the tunnel as a first direction, and defining a box culvert arranged in a second direction opposite to the first direction as a first section of the box culvert, ... and the nth section of the box culvert , n≥2, the first section of the box culvert and the second section of the box culvert are prefabricated first on the working platform, and the first section of the box culvert and the second section of the box culvert are both advanced in the first direction, third The section box is prefabricated at the initial position of the second section of the box culvert, and after the first section of the box culvert to the n-1th section of the box culvert is advanced in the first direction, the nth section of the box is culminated in the second section The initial position of the box culvert is prefabricated, and the box culvert relay pushing system further comprises at least one pushing device arranged to push the box culvert in front of the tunnel entrance, and is arranged to pass the second to the nth box culvert At least one tension device pulled in one direction and a box culvert arranged to enter part or all of the tunnel entrance At least a first direction of thrust of pushing, pulling means connected between said two adjacent box culvert, said thrust means disposed between two adjacent box culvert;

   The working platform is recessed with at least one pushing groove, and the box culvert relay pushing system further comprises at least one guiding cable assembly disposed on opposite end walls of the pushing groove in a first direction;

   The pushing device includes at least one first jack sleeved on the cable assembly, and a pusher frame assembly connected between the first jack and a corresponding box culvert, the top The pusher assembly portion is received in the push-pull slot, and the portion of the push-pull frame assembly received in the push-pull slot is provided with at least one guide via, and the cable assembly passes through the guide via. And carrying the push-pull frame assembly, the push-pull frame assembly revealing a portion of the push-pull groove abutting or connecting to the box culvert.
2. The box culvert relay jacking system according to claim 1, wherein each box culvert is provided with at least one push block structure, and the box culvert relay jacking system further comprises connecting the push block structure and the At least one connecting component of the pusher frame assembly, one end of the connecting component is fixed or resisted to the surface of the push block structure away from the pusher frame assembly, and the other end is sequentially exposed through the push block structure and the pusher frame assembly A portion of the thrust groove is post-fixed or resisted from the surface of the pusher frame assembly away from the push block structure.
3. The box culvert relay jacking system according to claim 2, wherein the pusher frame assembly exposes a portion of the pushing groove and at least one connecting through hole, and one end of the connecting component is fixed or resisted The push block structure is away from the surface of the pusher frame assembly, and the other end penetrates the push block structure and the connecting via hole in sequence, and then fixes or abuts against the periphery of the hole wall of the connecting via hole away from the end of the push block structure. .
4. The box culvert relay jacking system according to claim 3, wherein said connecting assembly comprises at least one mounting pad that abuts a periphery of said hole wall of said connecting via away from said one end of said push block structure, and at least Two spaced apart connecting members, one end of each connecting member abutting against the surface of the pushing block structure away from the pusher frame assembly, and the other end sequentially penetrates the push block structure, the connecting through hole and the mounting pad, and Holding the mounting mat away from the surface of the pusher frame assembly.
5. The box culvert relay jacking system of claim 1 further comprising at least one moving mechanism movably disposed in said jacking slot, said first jack Mounted on the moving mechanism and/or

   The first jack has a first clamping portion adjacent to the pusher frame assembly and a second clamping portion disposed opposite the first clamping portion, the first clamping portion and the second clamping portion The clamping portion is sleeved on a cable assembly, the first clamping portion is gripped or loosened to the cable assembly, and the second clamping portion is gripped or loosened to the cable assembly.
6. The box culvert relay jacking system according to claim 2, wherein each box culvert has a passage, and the push block structure is disposed at a bottom wall of the passage; and/or

   At least one force receiving boss is protruded from an end of each box culvert near the pushing device, and the pushing device abuts against the force receiving boss.
7. The box culvert relay jacking system according to claim 1, wherein each box culvert is provided with at least one connecting block, one end of the tensioning device is connected to a connecting block of a box culvert, and the other end is connected to the connecting block. The connection block of another box culvert adjacent to it.
8. The box culvert relay jacking system according to claim 2, wherein each box culvert is provided with at least one connecting block, one end of the tensioning device is connected to a connecting block of a box culvert, and the other end is connected to the connecting block. The connection block of another box culvert adjacent to it.
9. The box culvert relay jacking system according to claim 3, wherein each box culvert is provided with at least one connecting block, one end of the tensioning device is connected to a connecting block of a box culvert, and the other end is connected to the connecting block. The connection block of another box culvert adjacent to it.
10. The box culvert relay jacking system according to claim 4, wherein each box culvert is provided with at least one connecting block, one end of the tensioning device is connected to a connecting block of a box culvert, and the other end is connected to the connecting block. The connection block of another box culvert adjacent to it.
11. The box culvert relay jacking system according to claim 5, wherein each box culvert is provided with at least one connecting block, one end of the tensioning device is connected to a connecting block of a box culvert, and the other end is connected to the connecting block. The connection block of another box culvert adjacent to it.
12. The box culvert relay jacking system according to claim 6, wherein each of the box culverts is provided with at least one connecting block, one end of the tensioning device is connected to the connecting block of a box culvert, and the other end is connected to the connecting block. The connection block of another box culvert adjacent to it.
13. A box culvert relay jacking system according to claim 7, wherein said tensioning device comprises at least one tension cable assembly and at least one tension device, one end of said tension cable assembly being connected to a connecting block of a box culvert and the other end The connecting block of the other box culvert adjacent thereto is movably connected to a tensioner.
14. The box culvert relay jacking system according to claim 13, wherein the tension cable assembly comprises a plurality of tension cables, the plurality of tension cables are arranged side by side; and/or

    The tensioner includes a second jack having a third clamping portion adjacent to the connecting block corresponding thereto and a fourth clamping portion disposed opposite to the third clamping portion, The third clamping portion and the fourth clamping portion are both sleeved on a tension cable assembly, the third clamping portion is gripped or loosened on the tension cable assembly, and the fourth clamping portion is gripped or Loosen the tension cable assembly.
15. The box culvert relay jacking system according to claim 1, wherein the cable assembly comprises a plurality of guide wires, the plurality of guide wires are arranged side by side; and/or

    The length of the guide cable assembly in the first direction is greater than the length of the second to the nth segment of the box culvert in the first direction; and/or

    The working platform is further provided with a prefabricated area, the prefabricated area is disposed adjacent to an end of the pushing groove away from the tunnel entrance, or the prefabricated area is located at an end of the pushing groove away from the tunnel entrance; and/or

    The thrust device includes at least one third jack, the third jack is located between two adjacent box culverts, and two ends of the third jack are respectively respectively resisted or connected to two adjacent Box culvert; and/or,

    The working platform is provided with a lubricating layer.