CN115369915B - Tunneling supporting device for comprehensive pipe rack and operation method thereof - Google Patents
Tunneling supporting device for comprehensive pipe rack and operation method thereof Download PDFInfo
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- CN115369915B CN115369915B CN202211124889.5A CN202211124889A CN115369915B CN 115369915 B CN115369915 B CN 115369915B CN 202211124889 A CN202211124889 A CN 202211124889A CN 115369915 B CN115369915 B CN 115369915B
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- 230000005641 tunneling Effects 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 295
- 239000002689 soil Substances 0.000 claims abstract description 69
- 230000002441 reversible effect Effects 0.000 claims description 16
- 238000007790 scraping Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 17
- 238000009412 basement excavation Methods 0.000 description 8
- 239000002893 slag Substances 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 241000221931 Hypomyces rosellus Species 0.000 description 1
- 206010035148 Plague Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
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- 230000000750 progressive effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- General Engineering & Computer Science (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a tunneling and supporting device for a comprehensive pipe rack and an operation method thereof, which relate to the field of construction of the comprehensive pipe rack, wherein the tunneling and supporting device for the comprehensive pipe rack comprises the following components: the frame mechanism comprises a first support rod and a second support rod which are fixedly connected, and a preset interval is arranged between the first support rod and the second support rod; the cutting chain plate mechanism is arranged between the first support rod and the second support rod, the upper end of the cutting chain plate mechanism rotates around a first rotating shaft of the cutting chain plate mechanism, the lower end of the cutting chain plate mechanism rotates around a second rotating shaft of the cutting chain plate mechanism, the first rotating shaft is far away from the front end of the frame mechanism relative to the second rotating shaft, the cutting chain plate mechanism is used for excavating foundation pit soil and carrying cut dregs to a soil collecting space; a screw conveyor extending obliquely upward and passing through the frame mechanism, the screw conveyor being for carrying away dregs in the soil-receiving space; etc. The utility model discloses a problem that construction cost is high, engineering implementation progress is slow can be solved to the utility tunnel.
Description
Technical Field
The invention relates to the field of comprehensive pipe gallery construction, in particular to a tunneling supporting device for a comprehensive pipe gallery and an operation method thereof.
Background
As an effective means for solving the problems of road zippers and air cobweb, the utility tunnel is raised up to build hot tide in China and in China. Then, construction cost is always one of the main factors that plague comprehensive pipe rack approval and construction progress, because the investment of the earthwork excavation and support of the pipe rack needs to account for more than 25% of the investment of the civil engineering part of the pipe rack.
If the pipe gallery is constructed using conventional downhill excavation or other special support, the following problems must exist: firstly, the construction progress is slower; secondly, the influence on the surrounding environment and traffic is larger. Even if the cost problem is not considered, the problem of slower construction progress can have further adverse effects on traffic. Based on solving the problems actually encountered in the utility tunnel construction engineering, the industry is promoted to develop forward, and a new working device is needed to solve the problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the technical problem to be solved by the embodiment of the invention is to provide the tunneling and supporting device for the comprehensive pipe rack and the operation method thereof, which can solve the problems of high construction cost and slow engineering implementation progress of the comprehensive pipe rack.
The specific technical scheme of the embodiment of the invention is as follows:
a tunneling and supporting device for a utility tunnel, the tunneling and supporting device for a utility tunnel comprising:
the frame mechanism comprises a first support rod and a second support rod which are fixedly connected, and a preset interval is arranged between the first support rod and the second support rod;
the cutting chain plate mechanism is arranged between the first support rod and the second support rod, the upper end of the cutting chain plate mechanism rotates around a first rotating shaft, the lower end of the cutting chain plate mechanism rotates around a second rotating shaft, the first rotating shaft is far away from the front end of the frame mechanism relative to the second rotating shaft, and the cutting chain plate mechanism is used for excavating foundation pit soil and carrying cut dregs to a soil collecting space;
a screw conveyor extending obliquely upward and through the frame mechanism, the screw conveyor for carrying away dregs of the soil-receiving space;
the rear support mechanism is arranged below the frame mechanism and behind the cutting chain plate mechanism and used for supporting two sides, a first hydraulic mechanism with one end used for providing horizontal thrust for the cutting chain plate mechanism is arranged in the rear support mechanism, and the rear end of the rear support mechanism is connected with a reverse pushing frame device used for propping against a prefabricated pipe gallery pipe joint.
Preferably, the frame mechanism further comprises a connecting rod, and the connecting rod is respectively connected with the first supporting rod and the second supporting rod; the rear ends of the first support rod and the second support rod are gradually close to the middle of the first support rod and the second support rod and finally connected together; the rear ends of the connecting rod, the first supporting rod and the second supporting rod form a triangular frame structure; the cutting chain plate mechanism is positioned at the front end of the connecting rod.
Preferably, the first support bar and the second support bar are provided with brackets for mounting the first rotating shaft; the cutting link plate mechanism includes: a sprocket chain mounted on the first and second rotating shafts, the sprocket chain rotating with the first and second rotating shafts; a plurality of cutting parts fixedly arranged on the outer side of the sprocket chain, wherein the cutting parts are arranged in a V shape; and scraping plates which are arranged between the adjacent cutting parts in the V-shaped arrangement and used for carrying soil bodies are arranged in the moving direction of the chain wheels and the chain.
Preferably, the tunneling and supporting device for the utility tunnel further comprises:
the front supporting mechanism is arranged below the frame mechanism, behind the cutting chain plate mechanism and in front of the tail supporting mechanism and used for supporting two sides, and comprises a first bottom plate, a first side plate, a second side plate and a first rear plate, wherein the first side plate, the second side plate and the first rear plate are respectively connected with two sides of the first bottom plate; the front supporting mechanism forms the soil collecting space;
the frame mechanism further comprises: one end of the fixing frame is used for installing the second rotating shaft, and the other end of the fixing frame is connected with the first supporting rod and/or the second supporting rod.
Preferably, the front end of the first support bar is provided with a first wheel and a first shovel plate mechanism, and the first shovel plate mechanism comprises: the first shovel plate is hinged with the first supporting rod, and the first hydraulic cylinder lifting mechanism is used for adjusting the height of the first shovel plate;
the front end of second bracing piece is provided with second wheel and second shovel board mechanism, second shovel board mechanism includes: the second shovel plate is hinged with the second supporting rod, the second hydraulic cylinder lifting mechanism is used for adjusting the height of the second shovel plate, and two ends of the second hydraulic cylinder lifting mechanism are respectively connected to the second shovel plate and the second supporting rod.
Preferably, the inlet end of the screw conveyor is located in the soil collecting space, and the screw conveyor penetrates through the connecting rod and the triangular frame structure formed by the rear ends of the first support rod and the second support rod and extends to the rear of the reverse thrust frame device from the rear end to the rear end.
Preferably, the tail support mechanism comprises: the first bottom plate, a second bottom plate, a third side plate and a fourth side plate which are respectively connected with two sides of the first bottom plate; the front end of the first hydraulic mechanism is connected with the fixing frame; the rear end of the first hydraulic mechanism is connected with the second bottom plate; the second hydraulic mechanism is arranged between the second bottom plate and the reverse thrust frame device, and the second hydraulic mechanism can enable the second bottom plate and the reverse thrust frame device to move relatively in the front-back direction of the tunneling support device.
Preferably, a plurality of tail wheel mechanisms are arranged on the second bottom plate, and the tail wheel mechanisms are used for being matched with the guide grooves.
Preferably, the tunneling and supporting device for the utility tunnel comprises:
the support mechanism comprises a sliding groove connected to the tail support mechanism and extending along the advancing direction of the tunneling support device, and a sliding mechanism connected to the joint of the first support rod and the second support rod, wherein the sliding groove can support the sliding mechanism, and the sliding mechanism can slide on the sliding groove so that the tail support mechanism and the frame mechanism can move relatively.
A method of operation employing a tunneling support for a utility tunnel as described in any of the preceding claims, the method of operation comprising:
the first support rods and the second support rods are respectively arranged on soil bodies on two sides of a pipe gallery to be excavated, and the lower ends of the cutting chain plate mechanisms are arranged at the bottoms of foundation pits of the pipe gallery to be excavated;
the method comprises the steps of driving a cutting chain plate mechanism to rotate, propping a reverse pushing frame device against a prefabricated pipe gallery pipe joint, and extending a first hydraulic mechanism to enable the first hydraulic mechanism to provide horizontal pushing force for the cutting chain plate mechanism, wherein the cutting chain plate mechanism excavates foundation pit soil occupying a pipe gallery to be excavated, and carries cut muck to a soil collecting space;
conveying away the dregs in the soil collecting space through a screw conveyor;
and supporting the excavated soil bodies on the two sides of the foundation pit through a tail supporting mechanism.
The technical scheme of the invention has the following remarkable beneficial effects:
according to the tunneling supporting device for the comprehensive pipe gallery, foundation pit soil occupying the pipe gallery needing to be excavated is excavated between the first supporting rod and the second supporting rod through the cutting chain plate mechanism, the cut dregs are carried to a soil collecting space, and the first hydraulic mechanism is used for providing horizontal thrust for the cutting chain plate mechanism so as to provide advancing power for excavating the soil for the cutting chain plate mechanism; at the same time, the slag soil in the soil collecting space is transported away by using a screw conveyor. In the working process, soil bodies on two sides of the foundation pit are supported by utilizing the tail support mechanism, so that the safety of the excavated foundation pit is ensured. The whole tunneling and supporting device achieves the integrated operation of excavation and earth transportation of the foundation pit of the pipe gallery, meanwhile, the mechanization degree of the construction of the comprehensive pipe gallery is increased, the occupied space is reduced, the construction period of the comprehensive pipe gallery is shortened, in addition, the tunneling and supporting device can be used as a supporting structure, and the investment of project construction is reduced.
Specific embodiments of the invention are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not limited in scope thereby. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present invention, and are not particularly limited. Those skilled in the art with access to the teachings of the present invention can select a variety of possible shapes and scale sizes to practice the present invention as the case may be.
FIG. 1 is a front view of a tunneling support for a utility tunnel according to an embodiment of the present invention;
FIG. 2 is a top view of a tunneling support for a utility tunnel according to an embodiment of the present invention;
FIG. 3 is a left side view of a cutting link plate mechanism in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural view of a tail support mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic view of the tail wheel mechanism engaged with the guide channel in an embodiment of the present invention;
FIG. 6 is a three-dimensional perspective view of a tunneling support for a utility tunnel in accordance with an embodiment of the present invention.
Reference numerals of the above drawings:
1. a screw conveyor; 2. a frame mechanism; 21. a first support bar; 2. a second support bar; 23. a connecting rod; 24. a bracket; 25. a fixing frame; 26. a first wheel; 27. a second wheel; 28. a first blade mechanism; 281. a first blade; 282. a first hydraulic cylinder lifting mechanism; 29. a second blade mechanism; 3. cutting a chain plate mechanism; 31. a first rotating shaft; 32. a second rotating shaft; 33. a sprocket chain; 34. a cutting section; 35. a scraper; 4. a tail support mechanism; 41. a second base plate; 411. a tail wheel mechanism; 42. a third side plate; 43. a fourth side plate; 5. a first hydraulic mechanism; 6. a thrust reverser device; 7. a front support mechanism; 71. a first base plate; 72. a first side plate; 73. a second side plate; 74. a soil collecting space; 75. a first back plate; 8. a second hydraulic mechanism; 9. a support mechanism; 91. a chute; 92. a sliding mechanism; 10. a third hydraulic mechanism; 100. prefabricating pipe gallery pipe joints; 200. and a guide groove.
Detailed Description
The details of the invention will be more clearly understood in conjunction with the accompanying drawings and description of specific embodiments of the invention. However, the specific embodiments of the invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Given the teachings of the present invention, one of ordinary skill in the related art will contemplate any possible modification based on the present invention, and such should be considered to be within the scope of the present invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other in two elements, may be directly connected, or may be indirectly connected through an intermediary, and the specific meaning of the terms may be understood by those of ordinary skill in the art in view of the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In order to solve the problems of high construction cost and slow engineering implementation progress of the utility tunnel, a tunneling and supporting device for the utility tunnel is provided in the present application, fig. 1 is a front view of the tunneling and supporting device for the utility tunnel in the embodiment of the present invention, fig. 2 is a top view of the tunneling and supporting device for the utility tunnel in the embodiment of the present invention, fig. 6 is a three-dimensional perspective view of the tunneling and supporting device for the utility tunnel in the embodiment of the present invention, and as shown in fig. 1, fig. 2 and fig. 6, the tunneling and supporting device for the utility tunnel may include: the frame mechanism 2 comprises a first supporting rod 21 and a second supporting rod 22 which are fixedly connected, and a preset interval is arranged between the first supporting rod 21 and the second supporting rod 22; the cutting link plate mechanism 3 is arranged between the first support rod 21 and the second support rod 22, the upper end of the cutting link plate mechanism 3 rotates around the first rotating shaft 31, the lower end of the cutting link plate mechanism 3 rotates around the second rotating shaft 32, the first rotating shaft 31 is far away from the front end of the frame mechanism 2 relative to the second rotating shaft 32, the cutting link plate mechanism 3 is used for excavating foundation pit soil and carrying cut dregs to the soil collecting space 74; a screw conveyor 1 extending obliquely upward and passing through the frame mechanism 2, the screw conveyor 1 being for carrying away dregs in the soil-receiving space 74; the tail support mechanism 4 is arranged below the frame mechanism 2 and behind the cutting chain plate mechanism 3 and used for supporting two sides, a first hydraulic mechanism 5 with one end used for providing horizontal thrust for the cutting chain plate mechanism 3 is arranged in the tail support mechanism 4, and the rear end of the tail support mechanism 4 is connected with a back-pushing frame device 6 used for propping against the prefabricated pipe gallery pipe joint 100.
The tunneling and supporting device for the comprehensive pipe rack is characterized in that foundation pit soil occupying the pipe rack to be excavated is excavated between the first supporting rod 21 and the second supporting rod 22 through the cutting link plate mechanism 3, the cut dregs are carried to the soil collecting space 74, and the first hydraulic mechanism 5 is used for providing horizontal thrust for the cutting link plate mechanism 3 so as to provide advancing power for soil excavation for the cutting link plate mechanism 3; at the same time, the earth and slag in the earth-collecting space 74 is carried away by the screw conveyor 1. In the working process, soil bodies on two sides of the foundation pit are supported by utilizing the tail support mechanism 4, so that the safety of the excavated foundation pit is ensured. The whole tunneling and supporting device achieves the integrated operation of excavation and earth transportation of the foundation pit of the pipe gallery, meanwhile, the mechanization degree of the construction of the comprehensive pipe gallery is increased, the occupied space is reduced, the construction period of the comprehensive pipe gallery is shortened, in addition, the tunneling and supporting device can be used as a supporting structure, and the investment of project construction is reduced.
In order to better understand the tunneling and supporting device for the utility tunnel in the present application, the following will further explain and describe the same. As shown in fig. 1, 2 and 6, a tunneling and supporting apparatus for a utility tunnel may include: a frame mechanism 2, a cutting chain plate mechanism 3, a screw conveyor 1, a tail support mechanism 4, a first hydraulic mechanism 5 and a reverse thrust frame device 6. The frame mechanism 2 comprises a first support rod 21 and a second support rod 22 which are fixedly connected, and a preset interval is arranged between the first support rod 21 and the second support rod 22. The first support bar 21 and the second support bar 22 are mainly used for supporting and mounting the cutting link plate mechanism 3. The front end portions of the first support bar 21 and the second support bar 22 are arranged in parallel, both extending in the direction in which the tunneling support is advanced. The preset interval between the first support bar 21 and the second support bar 22 is for accommodating the cutting link plate mechanism 3. The preset interval is substantially equal to the width of the pipe gallery foundation pit to be excavated.
As shown in fig. 2, in order to fixedly connect the first support bar 21 and the second support bar 22 together, the rear ends of the first support bar 21 and the second support bar 22 are gradually connected together toward the middle of the two. In order to improve the strength of the fixed connection between the first support bar 21 and the second support bar 22, the frame mechanism 2 further includes a connecting bar 23, the connecting bar 23 connects the first support bar 21 and the second support bar 22, respectively, and the connecting bar 23 may be located on the same horizontal plane as the first support bar 21 and the second support bar 22. Further, the connecting rod 23 forms a triangular frame structure with the rear ends of the first support rod 21 and the second support rod 22, so that the stability and the firmness of the whole frame mechanism 2 reach a high level. In addition, the triangular frame structure may facilitate layout of the post-screw conveyor 1 to carry away the dregs of the soil receiving space 74. The cutting chain plate mechanism 3 is positioned at the front end of the connecting rod 23, so that the connecting rod 23 is prevented from interfering the cutting chain plate mechanism 3 to excavate the foundation pit soil body.
As shown in fig. 1 and 2, the cutting link plate mechanism 3 is used for excavating foundation pit soil and carrying cut slag to the soil receiving space 74. The cutting link plate mechanism 3 is disposed between the first support bar 21 and the second support bar 22. The upper end of the cutting link plate mechanism 3 rotates about its first rotation axis 31, and the lower end of the cutting link plate mechanism 3 rotates about its second rotation axis 32. The first shaft 31 and/or the second shaft 32 may be in driving connection with a driving device to drive the first shaft 31 and the second shaft 32 to rotate. The first support bar 21 and the second support bar 22 are provided with a bracket 24 for mounting the first rotation shaft 31, and the bracket 24 may be located at upper end surfaces of the first support bar 21 and the second support bar 22.
As shown in fig. 1, the first rotating shaft 31 is far away from the front end of the frame mechanism 2 relative to the second rotating shaft 32, so that a certain included angle is formed between the cutting link plate mechanism 3 and the vertical direction, and the cutting link plate mechanism 3 is inclined towards the rear end of the tunneling support device from bottom to top. As shown in fig. 1, the cutting link plate mechanism 3 rotates clockwise, through the inclination degree of the cutting link plate mechanism 3, the side of the cutting link plate mechanism 3 facing the front end excavates the foundation pit soil body, and the cut slag soil can be carried by the cutting link plate mechanism 3 to move upwards until the slag soil reaches the backward side of the cutting link plate mechanism 3 by bypassing the first rotating shaft 31, so that the slag soil can be conveniently transported away in the later stage, and the excavation of the foundation pit soil body by the side of the cutting link plate mechanism 3 facing the front end cannot be influenced.
Fig. 3 is a left side view of the cutting link plate mechanism according to the embodiment of the present invention, and as shown in fig. 3, the cutting link plate mechanism 3 may include: a sprocket chain 33 mounted on the first and second rotating shafts 31 and 32, the sprocket chain 33 rotating together with the first and second rotating shafts 31 and 32; a plurality of cutting parts 34 fixedly provided at the outer side of the sprocket chain 33, the plurality of cutting parts 34 being arranged in a V-shape; a scraper 35 for carrying soil is provided between the adjacent plural cutting portions 34 arranged in a V-shape in the moving direction of the sprocket chain 33. The cutting portion 34 is used to cut the foundation pit soil to form chipped and muck. The sprocket chain 33 may be plural in number, which is disposed in line along the extending direction of the first rotation shaft 31. The plurality of cutting portions 34 arranged in a V-shape can improve cutting efficiency of the foundation pit soil body. The scraper 35 is a generally convex cross-plate that is raised to carry the chips and grounds cut by the cutting portion 34 and carry the chips and grounds upward under rotation of the sprocket chain 33 until it passes around the first rotation shaft 31 to the rearward side of the cutting link plate mechanism 3. In addition, the scraper 35 and the plurality of cutting portions 34 arranged in a V-shape may form a triangular region which is advantageous for receiving the chipped-off muck so as to efficiently carry the chipped muck around the first rotation shaft 31 to the rearward side of the cutting link plate mechanism 3.
As shown in fig. 1, the screw conveyor 1 extends obliquely upward and through the frame mechanism 2, and the screw conveyor 1 serves to carry away the dregs in the soil-receiving space 74. The screw conveyor 1 includes at least an outer cylinder and a screw rotatably provided in the outer cylinder.
Fig. 4 is a schematic structural diagram of a tail support mechanism in the embodiment of the present invention, and as shown in fig. 1, 2 and 4, the tail support mechanism 4 is disposed below the frame mechanism 2 and behind the cutting link plate mechanism 3, and is used for supporting soil bodies on two sides of an excavated foundation pit. The tail support mechanism 4 includes: the second bottom plate 41, a third side plate 42 and a fourth side plate 43 respectively connected to both sides of the second bottom plate 41. The width of the second bottom plate 41 is substantially equal to the width of all of the sprocket chains 33, and the distance between the third side plate 42 and the fourth side plate 43 is also substantially equal to the width of all of the sprocket chains 33. The third side plate 42 and the fourth side plate 43 are used for supporting soil bodies on two sides of the excavated foundation pit.
As shown in fig. 4, the tail support mechanism 4 is provided with a first hydraulic mechanism 5 with one end for providing horizontal thrust to the cutting link plate mechanism 3, and the first hydraulic mechanism 5 can stretch and retract so as to provide horizontal thrust to the cutting link plate mechanism 3 and provide advancing power for excavating soil for the cutting link plate mechanism 3. The rear end of the tail support mechanism 4 is connected with a reverse pushing frame device 6 for pushing against the prefabricated pipe gallery pipe joint 100, so that the position of the tail support mechanism 4 can be fixed, and the problem of backward movement of the tail support mechanism 4 when the first hydraulic mechanism 5 provides horizontal pushing force to the cutting chain plate mechanism 3 is avoided. In addition, a compressive force can also be provided for installation of the prefabricated pipe gallery pipe sections 100.
As shown in fig. 1 and 2, the tunneling and supporting device for the utility tunnel may further include: and a front support mechanism 7 arranged below the frame mechanism 2, behind the cutting chain plate mechanism 3 and in front of the tail support mechanism 4 for supporting two sides. The front support mechanism 7 includes a first bottom plate 71, first and second side plates 72 and 73 connected to both sides of the first bottom plate 71, respectively, and a first rear plate 75. The width of the first bottom plate 71 is substantially equal to the width of all of the sprocket chains 33, and the distance between the first side plate 72 and the second side plate 73 is also substantially equal to the width of all of the sprocket chains 33. The first side plate 72 and the second side plate 73 are used for supporting soil bodies on two sides of the excavated foundation pit.
As shown in fig. 1, the front support mechanism 7 forms a soil receiving space 74, i.e., a region surrounded by the first bottom plate 71, the first side plate 72, the second side plate 73, and the first rear plate 75 forms the soil receiving space 74. The front support mechanism 7 is closely adjacent to the rear side of the cutting link plate mechanism 3, and the soil receiving space 74 is formed below and behind the first rotation shaft 31, so that the debris and slag carried by the cutting portion 34 on the sprocket chain 33 can fall into the soil receiving space 74 after bypassing the first rotation shaft 31. The first bottom plate 71 and the second bottom plate 41 have substantially the same height as the lowermost end of the cutting link mechanism 3.
As shown in fig. 1, the frame mechanism 2 further includes: the fixing frame 25 has one end for mounting the second rotating shaft 32 and the other end connected to the first support rod 21 and/or the second support rod 22. The front support mechanism 7 may be attached to a mount 25. The fixing frame 25 is used for limiting the second rotating shaft 32 in the vertical direction. The fixing frame 25 may or may not limit the second rotation shaft 32 in the horizontal direction, and the inclination degree of the cutting link plate mechanism 3 may be adjusted by adjusting the front and rear positions of the fixing frame 25. In this embodiment, the other end of the fixing frame 25 is movable in the horizontal direction with the first support bar 21 and/or the second support bar 22, but is limited in the vertical direction and is immovable. The other end of the fixing frame 25 and the first support bar 21 and/or the second support bar 22 can be simultaneously switched to a limit state in the horizontal direction. In addition, the fixing frame 25 is fixedly connected with the front support mechanism 7, thereby realizing the fixation of the front support mechanism 7.
Further, the inlet end of the screw conveyor 1 is located in the soil collecting space 74, and the screw conveyor 1 extends to the rear of the back thrust frame device 6 through the inside of the triangular frame structure formed by the connecting rod 23 and the rear ends of the first and second support rods 21 and 22. By the above parts of the screw conveyor 1, the screw conveyor 1 not only can realize that the dregs in the soil collecting space 74 are carried away backwards, but also can not influence the arrangement of the tail support mechanism 4, the first hydraulic mechanism 5 and the reverse thrust frame device 6 at the rear end of the tunneling support, and can not influence the laying of the prefabricated pipe gallery pipe joint 100 at the rear end of the tunneling support. The outlet end of the screw conveyor 1 may be provided with a conveying pipe extending in the direction of extension of the first rotation shaft 31, so that the muck can be moved to the side of the tunneling and supporting device, and the transport vehicle can be stopped on the soil body at the side of the tunneling and supporting device, so as to directly receive the muck, thereby improving the transport efficiency.
As shown in fig. 1 to 3, the front end of the first hydraulic mechanism 5 may be connected to a fixing frame 25, for example, may be hinged to be rotatable in a vertical direction to accommodate the uneven bottom of the foundation pit. The first rear plate 75 is connected to the mount 25. The rear end of the first hydraulic mechanism 5 is connected to the second bottom plate 41. A second hydraulic mechanism 8 is connected between the second bottom plate 41 and the reverse thrust frame device 6, and the second hydraulic mechanism 8 can enable the second bottom plate 41 and the reverse thrust frame device 6 to move relatively in the front-back direction of the tunneling support device. When the first hydraulic mechanism 5 stretches, the first rear plate 75 is driven, and then the fixing frame 25 is driven by the first rear plate 75. When the fixing frame 25 and the first supporting rod 21 and/or the second supporting rod 22 are in a limiting state in the horizontal direction, the whole cutting chain plate mechanism 3 can be driven to move in the advancing or retreating direction of the tunneling supporting device through the fixing frame 25. When the fixing frame 25 and the first support rod 21 and/or the second support rod 22 do not limit in the horizontal direction, the fixing frame 25 can drive the second rotating shaft 32 to move in the forward or backward direction of the tunneling and supporting device, so as to adjust the inclination degree of the tunneling and supporting device. As the excavation of the foundation pit proceeds, when the whole tunneling and supporting device needs to be pushed to move forward, the second hydraulic mechanism 8 stretches, and as the reverse thrust frame device 6 abuts against the prefabricated pipe gallery pipe joint 100, all other devices of the tunneling and supporting device can be pushed to move forward by using the stretching of the second hydraulic mechanism 8.
As shown in fig. 1, the front end of the first support bar 21 is provided with a first wheel 26 and a first blade mechanism 28, and the first blade mechanism 28 includes: the first shovel plate 281 is hinged with the first supporting rod 21, the first hydraulic cylinder lifting mechanism 282 is used for adjusting the height of the first shovel plate 281, and two ends of the first hydraulic cylinder lifting mechanism 282 are respectively connected to the first shovel plate 281 and the first supporting rod 21. The front end of the second support bar 22 is provided with a second wheel 27 and a second blade mechanism 29, the second blade mechanism 29 including: the second shovel plate is hinged with the second supporting rod 22, and the second hydraulic cylinder lifting mechanism for adjusting the height of the second shovel plate is arranged at the two ends of the second hydraulic cylinder lifting mechanism and is respectively connected with the second shovel plate and the second supporting rod 22. The first shovel mechanism 28 and the second shovel mechanism 29 can be used for trimming the elevation of soil in front of the wheels so as to achieve the effect of controlling the vertical height and the attitude of the tunneling support. The first hydraulic cylinder lifting mechanism 282 and the second hydraulic cylinder lifting mechanism can respectively adjust the heights of the first shovel plate 281 and the second shovel plate by controlling, so as to adjust the elevation of the soil body in front of the trimming wheel. The first wheel 26 and the second wheel 27 are used for supporting the frame mechanism 2, and when the foundation pit is driven, the first wheel 26 and the second wheel 27 are positioned on soil bodies on two sides of the foundation pit, so that the driving support device can conveniently move forwards and backwards.
Similarly, fig. 5 is a schematic diagram of the cooperation of the tail wheel mechanism with the guide groove in the embodiment of the present invention, as shown in fig. 1, 4 and 5, a plurality of tail wheel mechanisms 411 are disposed on the second bottom plate 41, and the tail wheel mechanisms 411 are used to cooperate with the guide groove 200. The tail wheel mechanism 411 can move back and forth in the guide groove 200. The guide slot 200 is located at the bottom of the excavated foundation pit. The tail support mechanism 4 can be moved forward and backward by the tail wheel mechanism 411.
As shown in fig. 4, the tunneling support apparatus for a utility tunnel may include: the support mechanism 9 comprises a chute 91 connected to the tail support mechanism 4 and extending in the advancing direction of the tunneling support, and a sliding mechanism 92 connected to the joint of the first support bar 21 and the second support bar 22. The slide groove 91 can support the slide mechanism 92, and the slide mechanism 92 can slide on the slide groove 91 to enable the tail support mechanism 4 and the frame mechanism 2 to move relatively. With the above structure, the tail support mechanism 4 can support the weight of the rear portion of the frame mechanism 2 through the support mechanism 9. Meanwhile, when the first hydraulic mechanism 5 expands and contracts, the tail support mechanism 4 does not move, and the frame mechanism 2 moves, and at this time, the slide mechanism 92 can move in the slide groove 91 to achieve the above-described process. When the second hydraulic mechanism 8 expands and contracts, the frame mechanism 2 does not move, and the tail support mechanism 4 moves, and at this time, the slide mechanism 92 can move in the slide groove 91 to achieve the above-described process.
Further, the tail wheel mechanism 411 has a locking mechanism capable of locking with the guide groove 200, the locking mechanism having a locked state with the guide groove 200 and an unlocked state with the guide groove 200. When the second hydraulic means 8 is extended, the locking means is in an unlocked state to facilitate the forward movement of the tail support means 4. When the second hydraulic mechanism 8 is contracted, the locking mechanism is in a locked state, thereby ensuring that the tail support mechanism 4 is fixed against movement with the chute 91.
As shown in fig. 4, a third hydraulic mechanism 10 is further provided between the chute 91 and the tail support mechanism 4, and the third hydraulic mechanism 10 is capable of extending and retracting in the extending direction of the first rotation shaft 31, so that the position of the chute 91 in the extending direction of the first rotation shaft 31 can be adjusted. When the position of the slide groove 91 in the extending direction of the first rotation shaft 31 is changed, for example, the slide groove 91 is not located in the middle of the tail support mechanism 4, the slide mechanism 92 may be embedded in the slide groove 91, so that the slide groove 91 may change the position of the slide mechanism 92 in the extending direction of the first rotation shaft 31, as shown in fig. 2, so that the rear end of the frame mechanism 2 deflects in the up-down direction, at this time, the frame mechanism 2 rotates to a certain extent, thereby realizing the steering of the frame mechanism 2, and enabling the frame mechanism 2 to be propelled along a predetermined planar line.
Also provided in this application is a method of operation of a tunneling and support apparatus for a utility tunnel, the method of operation may include:
step 1: when the foundation pit of the pipe gallery needs to be excavated, the first supporting rods 21 and the second supporting rods 22 are respectively arranged on the soil bodies on two sides of the pipe gallery to be excavated, and the lower ends of the cutting chain plate mechanisms 3 are arranged at the bottoms of the foundation pits of the pipe gallery to be excavated.
Step 2: the cutting chain plate mechanism 3 is driven to rotate, the reverse pushing frame device 6 is pushed against the prefabricated pipe gallery pipe joint 100, the first hydraulic mechanism 5 is extended, so that the first hydraulic mechanism 5 provides horizontal pushing force for the cutting chain plate mechanism 3, the cutting chain plate mechanism 3 excavates foundation pit soil occupying the pipe gallery needing to be excavated, and the cut dregs are carried to the soil collecting space 74. The front support mechanism 7 forms a soil collecting space 74, and simultaneously, when the chain plate mechanism 3 to be cut advances forward, the front support mechanism 7 moves forward at the same time so as to support soil bodies on two sides of the excavated foundation pit.
Step 3: the dregs of the soil-receiving space 74 are carried away by the screw conveyor 1.
Step 4: by the second hydraulic mechanism 8 being extended, the first hydraulic mechanism 5 is contracted, thereby causing the tail support mechanism 4 to move forward. In this process, the slide mechanism 92 moves in the slide groove 91. The second hydraulic means 8 is then retracted and a prefabricated pipe rack section 100 can be inserted behind the tail support means 4, the counter-pushing means 6 being placed against the newly installed prefabricated pipe rack section 100.
Step 5: soil bodies on two sides of the excavated foundation pit are supported through the tail supporting mechanism 4.
And repeating the steps 2 to 5, so as to excavate the foundation pit soil body of the pipe gallery continuously, and simultaneously laying and completing the prefabricated pipe gallery pipe joint 100.
Step 6: when a turn is required, the expansion and contraction of the third hydraulic mechanism 10 is controlled according to the turning direction, so that the sliding groove 91 drives the sliding mechanism 92 to deflect, the rear end of the frame mechanism 2 deflects in the up-down direction, as shown in fig. 2, the frame mechanism 2 rotates to a certain extent by the method, and finally the advancing direction of the tunneling and supporting device is changed.
The tunneling supporting device for the comprehensive pipe gallery in the application achieves the aim of integrating excavation and earth transportation of a foundation pit of the pipe gallery through the combination of the cutting chain plate mechanism 3 and the screw conveyor 1, meanwhile, the elevation of soil bodies on two sides of the excavated foundation pit can be adjusted through the shovel plate mechanism, in addition, the tunneling supporting device can continuously excavate forwards through the cooperation of the first hydraulic mechanism 5 and the second hydraulic mechanism 8, and turning lane changing of the tunneling supporting device is achieved through the third hydraulic mechanism 10. The tunneling supporting device can reduce the construction cost of the comprehensive pipe rack and accelerate the implementation progress of engineering.
All articles and references, including patent applications and publications, disclosed herein are incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not substantially affect the essential novel features of the combination. The use of the terms "comprises" or "comprising" to describe combinations of elements, components, or steps herein also contemplates embodiments consisting essentially of such elements, components, or steps. By using the term "may" herein, it is intended that any attribute described as "may" be included is optional. Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, section or step is not intended to exclude other elements, components, sections or steps.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other. The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (9)
1. A tunneling and supporting device for a utility tunnel, the tunneling and supporting device for a utility tunnel comprising:
the frame mechanism comprises a first supporting rod and a second supporting rod, and a preset interval is arranged between the first supporting rod and the second supporting rod;
the cutting chain plate mechanism is arranged between the first support rod and the second support rod, the upper end of the cutting chain plate mechanism rotates around a first rotating shaft, the lower end of the cutting chain plate mechanism rotates around a second rotating shaft, the first rotating shaft is far away from the front end of the frame mechanism relative to the second rotating shaft, and the cutting chain plate mechanism is used for excavating foundation pit soil and carrying cut dregs to a soil collecting space;
a screw conveyor extending obliquely upward and through the frame mechanism, the screw conveyor for carrying away dregs of the soil-receiving space;
the tail support mechanism is arranged below the frame mechanism and behind the cutting chain plate mechanism and used for supporting two sides, a first hydraulic mechanism with one end used for providing horizontal thrust for the cutting chain plate mechanism is arranged in the tail support mechanism, and the rear end of the tail support mechanism is connected with a reverse pushing frame device used for propping against a prefabricated pipe gallery pipe joint;
the front end of first bracing piece is provided with first wheel and first shovel trigger mechanism, first shovel trigger mechanism includes: the first shovel plate is hinged with the first supporting rod, and the first hydraulic cylinder lifting mechanism is used for adjusting the height of the first shovel plate;
the front end of second bracing piece is provided with second wheel and second shovel board mechanism, second shovel board mechanism includes: the second shovel plate is hinged with the second supporting rod, the second hydraulic cylinder lifting mechanism is used for adjusting the height of the second shovel plate, and two ends of the second hydraulic cylinder lifting mechanism are respectively connected to the second shovel plate and the second supporting rod.
2. A tunneling support apparatus for a utility tunnel according to claim 1 and wherein said frame mechanism further comprises a connecting rod connecting said first and second support bars, respectively; the rear ends of the first support rod and the second support rod are gradually close to the middle of the first support rod and the second support rod and finally connected together; the rear ends of the connecting rod, the first supporting rod and the second supporting rod form a triangular frame structure; the cutting chain plate mechanism is positioned at the front end of the connecting rod.
3. A tunneling support apparatus for a utility tunnel according to claim 1 wherein said first and second support bars are provided with brackets for mounting said first axle; the cutting link plate mechanism includes: a sprocket chain mounted on the first and second rotating shafts, the sprocket chain rotating with the first and second rotating shafts; a plurality of cutting parts fixedly arranged on the outer side of the sprocket chain, wherein the cutting parts are arranged in a V shape; and scraping plates which are arranged between the adjacent cutting parts in the V-shaped arrangement and used for carrying soil bodies are arranged in the moving direction of the chain wheels and the chain.
4. A tunneling support for a utility tunnel according to claim 3 and also comprising:
the front supporting mechanism is arranged below the frame mechanism, behind the cutting chain plate mechanism and in front of the tail supporting mechanism and used for supporting two sides, and comprises a first bottom plate, a first side plate, a second side plate and a first rear plate, wherein the first side plate, the second side plate and the first rear plate are respectively connected with two sides of the first bottom plate; the front supporting mechanism forms the soil collecting space;
the frame mechanism further comprises: one end of the fixing frame is used for installing the second rotating shaft, and the other end of the fixing frame is connected with the first supporting rod and/or the second supporting rod.
5. A tunneling support apparatus for a utility tunnel according to claim 2 and wherein said entrance end of said screw conveyor is located in said soil receiving space and said screw conveyor extends rearwardly of said thrust reverser means through the interior of a triangular frame structure formed by said connecting rod and the rear ends of said first and second support bars.
6. A tunneling support apparatus for a utility tunnel according to claim 4 and wherein said tail support mechanism comprises: the first bottom plate, a second bottom plate, a third side plate and a fourth side plate which are respectively connected with two sides of the first bottom plate; the front end of the first hydraulic mechanism is connected with the fixing frame; the rear end of the first hydraulic mechanism is connected with the second bottom plate; the second hydraulic mechanism is arranged between the second bottom plate and the reverse thrust frame device, and the second hydraulic mechanism can enable the second bottom plate and the reverse thrust frame device to move relatively in the front-back direction of the tunneling support device.
7. A tunneling support for a utility tunnel according to claim 6 and wherein said second floor is provided with a plurality of tail wheel mechanisms for use with the guideway.
8. A tunneling support for a utility tunnel according to claim 6 and wherein said tunneling support for a utility tunnel comprises:
the support mechanism comprises a sliding groove connected to the tail support mechanism and extending along the advancing direction of the tunneling support device, and a sliding mechanism connected to the joint of the first support rod and the second support rod, wherein the sliding groove can support the sliding mechanism, and the sliding mechanism can slide on the sliding groove so that the tail support mechanism and the frame mechanism can move relatively.
9. A method of operation employing a tunneling support for a utility tunnel according to any one of claims 1 to 8, the method of operation comprising:
the first support rods and the second support rods are respectively arranged on soil bodies on two sides of a pipe gallery to be excavated, and the lower ends of the cutting chain plate mechanisms are arranged at the bottoms of foundation pits of the pipe gallery to be excavated;
the method comprises the steps of driving a cutting chain plate mechanism to rotate, propping a reverse pushing frame device against a prefabricated pipe gallery pipe joint, and extending a first hydraulic mechanism to enable the first hydraulic mechanism to provide horizontal pushing force for the cutting chain plate mechanism, wherein the cutting chain plate mechanism excavates foundation pit soil occupying a pipe gallery to be excavated, and carries cut muck to a soil collecting space;
conveying away the dregs in the soil collecting space through a screw conveyor;
and supporting the excavated soil bodies on the two sides of the foundation pit through a tail supporting mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211124889.5A CN115369915B (en) | 2022-09-15 | 2022-09-15 | Tunneling supporting device for comprehensive pipe rack and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211124889.5A CN115369915B (en) | 2022-09-15 | 2022-09-15 | Tunneling supporting device for comprehensive pipe rack and operation method thereof |
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| CN105297807A (en) * | 2015-11-11 | 2016-02-03 | 北方重工集团有限公司 | Integrated trench open cutting heading machine with automatic backfill function |
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| CN108468547A (en) * | 2018-05-16 | 2018-08-31 | 华东交通大学 | Shield machine soil cutting device and its attitude control method with wedge cut face |
| KR20190028836A (en) * | 2017-09-11 | 2019-03-20 | 최희숙 | Tunneling machine for non-open cut type tunnel pressing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7644524B2 (en) * | 2007-09-11 | 2010-01-12 | The Toro Company | Walk-behind trenching machine |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297807A (en) * | 2015-11-11 | 2016-02-03 | 北方重工集团有限公司 | Integrated trench open cutting heading machine with automatic backfill function |
| CN106593455A (en) * | 2017-02-27 | 2017-04-26 | 中铁工程装备集团有限公司 | Full section tunneling self-propelled type U-shaped shield tunneling machine |
| KR20190028836A (en) * | 2017-09-11 | 2019-03-20 | 최희숙 | Tunneling machine for non-open cut type tunnel pressing |
| CN108018882A (en) * | 2017-12-20 | 2018-05-11 | 中南大学 | A kind of shallow embedding pipe gallery engineering integrative construction device |
| CN108468547A (en) * | 2018-05-16 | 2018-08-31 | 华东交通大学 | Shield machine soil cutting device and its attitude control method with wedge cut face |
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