CN207554048U - Box culvert relaying pushing tow system with box culvert pushing block structure - Google Patents

Box culvert relaying pushing tow system with box culvert pushing block structure Download PDF

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Publication number
CN207554048U
CN207554048U CN201721353983.2U CN201721353983U CN207554048U CN 207554048 U CN207554048 U CN 207554048U CN 201721353983 U CN201721353983 U CN 201721353983U CN 207554048 U CN207554048 U CN 207554048U
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China
Prior art keywords
box culvert
pushing tow
box
section
thrustor
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CN201721353983.2U
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Chinese (zh)
Inventor
何军
潘树杰
虞培忠
谢迅猷
蒋朕刚
王志涛
边岩
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China State Construction Engineering Hong Kong Ltd
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China State Construction Engineering Hong Kong Ltd
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Abstract

The utility model discloses a kind of box culvert relaying pushing tow system with box culvert pushing block structure.Box culvert relaying pushing tow system is used for box culvert pushing tow into tunnel, the workbench being disposed adjacent including the entrance with tunnel, at least two sections of box culverts on workbench, box culvert relaying pushing tow system further includes at least thrustor for being located at the box culvert before the entrance in tunnel for pushing tow, the thrust device for the puller system that pulls the second to the n-th section of box culvert along the first direction and for the box culvert of some or all of entrance into tunnel to be pushed, puller system is connected between two adjacent box culverts, and thrust device is set between two adjacent box culverts；Each box culvert is equipped with pushing block structure, and the thrustor is set on the workbench and supports or be connected to the pushing block structure of a box culvert.The utility model box culvert relaying pushing tow system can be suitable for the Tunnel Passing of narrow construction site, realize mechanical equipment miniaturization setting.

Description

Box culvert relaying pushing tow system with box culvert pushing block structure
Technical field
It is more particularly to a kind of with box culvert pushing block structure the utility model is related to box culvert pushing tow tunnel Push Technology field Box culvert relays pushing tow system.
Background technology
Under the complicated environmental condition of city, tend not to, according only to the simple selection construction method of geological hydrology condition, go back Consider various factors such as city integrated planning, the influence of existing facility, environmental safety requirements.
In existing tunnel crossing technology, the construction technology that can adapt to city condition mainly has shield tunnel construction, tunneling Constructing tunnel and box culvert incremental launching construction etc..
First, shield method：
Mainly applicable environment place：Clay, fine sand, using earth pressure balanced shield, EPBS；Sand, rubble pebble layer, using mud Water balance shield；Advantage：Ground influence is small, and mechanization degree is high, and safety, labor intensity is low, and progress is fast；Shortcoming：Machinery Equipment is complicated, and expensive, construction technology is numerous, professional construction troop.
Second, subsurface excavation method：
Mainly applicable environment place：Preferable rock stratum, using drilling and blasting method；Poor rock stratum, soil layer have sternly construction disturbance Lattice requirement, using power auger play；Advantage：Mechanization degree is low, and labor intensity is high, bad environments, and risk is big；Shortcoming：Except enclosing Rock is especially loose or vibration control requires high, generally use drilling and blasting method；Buried depth is shallower or when country rock is poor is needed with pipe canopy etc. Method reinforces the soil body；Partial excavation method construction is selected according to geological conditions for big sections of tunnel；Wherein, shallow buried covered excavation Method is to carry out a kind of method of various types underground chamber boring construction in the underground nearer apart from earth's surface.In cities and towns weak surrounding rock In stratum, the constructing underground building under the conditions of shallow embedding, premised on geological conditions is transformed, ground settlement to be controlled to attach most importance to, with Grid (or other steel constructions) and spray anchor are as preliminary bracing means, according to " advanced, the tight slip casting of pipe, short excavation, strong supporting, soon 18 word principles of closing, diligent measurement " are constructed.
Third, box culvert incremental launching method：
Mainly applicable environment place：Soft stratum and loose wall rock；Advantage：Ground influences small, mechanization degree height, peace Entirely, labor intensity is low, and progress is fast；Shortcoming：Mechanical equipment is complicated, and expensive, construction technology is numerous, professional construction troop.
By taking China Hongkong as an example, the engineering geological condition of Hongkong is more complicated, and lithofacies and complex lithology are changeable, Rock weathering is serious, and weathered zone is crisscross, in net distribution；Hongkong it is widely distributed colluvial, the slope since the Quaternary Period Product, alluviation, proluvial and littoral sediment are covered；Meanwhile Hongkong mountainous region area coverage is wide, a large amount of urban lands are by filling out sea Epeirogenetic.Under such city complicated environmental condition, Tunnel Passing construction can encounter many different situations.For example pass through Back fill course, mud pass through the stratum of the rich groundwaters such as seashore, pass through liquescent loosening sand layer；Pass through existing pipe It below line facility, passes through near existing pile foundation plinth, passes through below existing road and rail, pass through below the infrastructure such as existing tunnel Etc..
With the needs that modern city develops, more and more big sections of tunnel pass through existing facility, pass through complexity again The situation for closing stratum can in succession occur surely in different regions, different cities.Box culvert incremental launching method is adapted to various geological conditions, especially It is for scall, and traditional subsurface excavation method tunnel needs stringent gib, and box culvert incremental launching method can utilize prefabricated box culvert pair It excavates hole body to be supported, greatly simplifies support work, and can ensure the safety of construction.Therefore, in order to not block Existing installation fishery under conditions of reducing on the influence of existing facility, ensureing existing facility continued operation, is quickly and safely completed multiple Big sections of tunnel under miscellaneous geological conditions passes through, and box culvert push construction method is particularly important.
The big section box culvert incremental launching method generally use of the prior art is that single-unit box culvert once completes prefabricated, primary completion top Crossing-river tunnel is pushed away, at least there is following defect：
First, existing big section box culvert incremental launching method is once prefabricated, that is, disposably pre- according to the length in tunnel to be traversed System completes complete single-unit box culvert, it is desirable to provide box culvert precasting yard space requirement it is larger, therefore, narrow construction field can not be met The requirement on ground；
Second, existing big pushing tow of section box culvert incremental launching method completes Tunnel Passing, a section of primary prefabricated completion Size, the weight of complete box culvert etc. are larger, therefore, the jacking force that the mechanical equipment required by pushing tow provides is larger, the machine used Tool equipment is more large-scale.
Utility model content
The main purpose of the utility model is to provide a kind of box culvert relaying pushing tow system with box culvert pushing block structure, it is intended to Solve the problem of that the mechanical equipment that box culvert incremental launching method can not meet the requirement of narrow construction site and use is more large-scale, It wears in the tunnel that box culvert with the box culvert pushing block structure relaying pushing tow system of the utility model can be suitable for narrow construction site More, and the setting that mechanical equipment minimizes is realized, reduces equipment and technology requirement, lifting means stability.
To achieve the above object, the utility model proposes box culvert with box culvert pushing block structure relay pushing tow system, use In by box culvert pushing tow into tunnel, including be disposed adjacent with tunnel portal workbench, on the workbench at least Two sections of box culverts define the box culvert pushing tow and enter the direction in tunnel for first direction, define along the first direction it is opposite the The box culvert that two directions are arranged in order be respectively first segment box culvert ... and n-th section of box culvert, n >=2, the first segment box culvert and second Section box culvert is most prefabricated prior to being spaced on the workbench, and first segment box culvert and second segment box culvert advance it along the first direction Afterwards, third section box culvert carries out prefabricated in the original position of the second segment box culvert, until first segment box culvert is to (n-1)th section of equal edge of box culvert After first direction advances, n-th section of box culvert carries out prefabricated, the box culvert relaying pushing tow in the original position of the second segment box culvert System further includes an at least thrustor for the box culvert before being located at tunnel portal for pushing tow, for by the second to the n-th section of box culvert At least puller system that pulls along the first direction and for by some or all of box culvert into tunnel portal along first At least thrust device that direction pushes, the puller system are connected between two adjacent box culverts, the thrust device setting Between two adjacent box culverts；Each box culvert is equipped with an at least pushing block structure, and the thrustor is set on the workbench, And support or be connected to the pushing block structure of a box culvert.
Optionally, each box culvert is respectively provided with channel, and the pushing block structure is set on the bottom wall of the channel；And/or Mei Yixiang Contain and be also convexly equipped with an at least stress boss close to the end of the thrustor, it is convex that the thrustor is held in the stress Platform.
Optionally, the workbench is recessed with an at least pushing tow slot, and the box culvert relaying pushing tow system further includes at least One is movably disposed in the mobile mechanism of the pushing tow slot and at least one is set on the opposite end of the pushing tow slot along the first direction The dragline component of wall, one end of the thrustor are sheathed on the dragline component, and be equipped on the mobile mechanism, the other end Support or be connected to a box culvert.
Optionally, the thrustor include be sheathed on the dragline component at least one first jack and connection or The pushing frame component being held between first jack and corresponding box culvert, first jack are equipped on described Mobile mechanism.
Optionally, first jack has the first clamping section for being close in the pushing frame component and with described first The second clamping section that clamping section is oppositely arranged, first clamping section and the second clamping section are sheathed on a dragline component, described First clamping section is held with a firm grip or unclamped in the dragline component, and second clamping section is held with a firm grip or unclamped in the dragline component.
Optionally, each box culvert is equipped with an at least link block, and one end of the puller system is connected to the company of a box culvert Block is connect, the other end is connected to the link block of another box culvert adjacent thereto.
Optionally, the puller system includes at least a pulling force rope component and at least a chest expander, the pulling force rope component One end be connected to the link block of a box culvert, the other end movably runs through the link block of another box culvert adjacent thereto, and with One chest expander connects.
Optionally, the pulling force rope component includes more Gen Lalisuo, and more Gen Lalisuo are mutually arranged side by side；And/or The chest expander includes the second jack, and second jack has the third clamping section for being close in corresponding link block With the 4th clamping section being oppositely arranged with the third clamping section, the third clamping section and the 4th clamping section are sheathed on a drawing Power rope component, the third clamping section are held with a firm grip or unclamped in the pulling force rope component, the 4th clamping section hold with a firm grip or unclamp in The pulling force rope component.
Optionally, the dragline component includes more draglines, and the more draglines are mutually arranged side by side；And/or it described leads Rope component along the first direction on length be more than any one in the second to the n-th section of box culvert along the first direction on length；And/or The workbench is additionally provided with predefined region, the predefined region be disposed adjacent with the described one end of pushing tow slot far from tunnel portal or Predefined region described in person is located at the described one end of pushing tow slot far from tunnel portal.
Optionally, the thrust device includes an at least third jack, and the third jack is located at two adjacent casees Between culvert, and the both ends of the third jack support or are connected to respectively two adjacent box culverts；And/or the workbench It is equipped with lubricant layer.
It is adjacent with tunnel portal that there is the utility model the box culvert of box culvert pushing block structure to relay workbench in pushing tow system Setting, box culvert are located on workbench, and thrustor is set on workbench and is held in a box culvert, and puller system is connected to two-phase Between adjacent box culvert, thrust device is set between two adjacent box culverts, wherein, thrustor is used to push box culvert flat in work It is moved along the first direction on platform；Puller system is used for the attached of the last period box culvert and the thrustor for supporting or being connected to the box culvert Put forth effort, to support, latter section of box culvert to be pulled along the first direction to advance；Thrust device, for latter section of box culvert with supporting or connecting It is support in the adhesive force of the thrustor of box culvert, the last period box culvert is pushed to advance along the first direction.The utility model has case The box culvert for containing pushing block structure relays pushing tow system by setting a set of independent puller system, by the second to the n-th section of prefabricated case Contain and the pushing tow region of thrustor is pulled to from its preform region, the is extended to so as to avoid the pushing tow region of thrustor The situation of the rear end of the preform region of two to the n-th sections of box culverts so as to shorten the length in the pushing tow region of thrustor, reduces Equipment transport distance and the quantities of construction；Also, compared to traditional box culvert incremental launching method using primary prefabricated, primary completion top The construction technology pushed away, it is pre- that there is the utility model the box culvert relaying pushing tow system of box culvert pushing block structure to be distinguished using segmentation box culvert System, the construction technology that promotes successively of segmentation box culvert, needed for the thrust that provides of mechanical equipment obtained largely reducing, The setting of mechanical equipment miniaturization is realized, and reduces equipment and technology requirement, lifting means stability；
And each box culvert is equipped with an at least pushing block structure, thrustor is set on workbench, and supports or be connected to The pushing block structure of one box culvert.Specifically, since box culvert is the main road surface carrier after the completion of constructing in tunnel, it is limited to case The structure setting of culvert itself, in order to preferably provide an installation position in order to the installation of thrustor and for thrustor Stablize to promote and a stress surface or joint face are provided, thrustor is supported or is connected to pushing block structure.
Specifically, the box culvert relaying pushing tow system that the utility model has box culvert pushing block structure can be applied to big section, surpass In heavy in section box culvert incremental launching construction, the box culvert entered in tunnel using pipe canopy, the pushing tow of advance support has excavated tunnel to support The soil body at the top of road can effectively control the sedimentation in boundary of works area, meet the construction requirement of stringent control surface subsidence, In particular, it is big using conventional shallow mining method hole body risk of caving under the loose weaks geological conditions such as reclaimation area, it needs A large amount of gib, therefore, the box culvert of the utility model relaying pushing tow system are ensureing the same of construction quality and tunnel safety When, support work is greatly simplified, is saved in existing subsurface excavation method, tunnel spray anchor supporting and interim steel construction branch are installed Support the time and expense of engineering.And the Tunnel Engineering of existing infrastructure is worn under, the utility model box culvert relaying pushing tow The segmentation box culvert pushing tow technology that system uses significantly reduces the influence run to existing ground installation.In addition, this practicality is new Molding box contains relaying pushing tow system, and the reinforced concrete structures such as workbench, box culvert are carried out before excavating and in digging process Prefabricated work without starting structure construction again after being completed in tunnelling, shortens the whole duration, has protrusion Economic benefit.And the utility model box culvert relaying pushing tow system, using three kinds of thrustor, puller system and thrust device The motive power machine equipment of different-effect, realizes the segmented prefabricated and pushing tow in small space, which can be suitable for more The construction site of sample and more extensive geological conditions are added, therefore, there is larger promotional value.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.
Fig. 1 is the knot at a visual angle of one embodiment of box culvert relaying pushing tow system that the utility model has box culvert pushing block structure Structure schematic diagram；
Fig. 2 is the partial enlarged view at A in Fig. 1；
Fig. 3 is the structure diagram that the utility model box culvert relays a visual angle of box culvert in one embodiment of pushing tow system；
Fig. 4 is the structure diagram at another visual angle of box culvert shown in Fig. 3；
Fig. 5 is the partial sectional view that box culvert shown in FIG. 1 relays pushing tow system；
Fig. 6 is the structure diagram at another visual angle that box culvert shown in FIG. 1 relays pushing tow system；
Fig. 7 is the partial enlarged view at B in Fig. 6；
Fig. 8 is the structure diagram at the another visual angle that box culvert shown in FIG. 1 relays pushing tow system；
Fig. 9 is the partial enlarged view at C in Fig. 8；
Figure 10 is the part assembling structure schematic diagram in one embodiment of the utility model box culvert relaying pushing tow system；
Figure 11 is the partial enlarged view at D in Figure 10；
Figure 12 is the structure diagram that the utility model box culvert relays the first jack in one embodiment of pushing tow system；
Figure 13 is that the second jack is connect with a link block in one embodiment of the utility model box culvert relaying pushing tow system Structure diagram；
Structural representations of the Figure 14 for workbench in the Starting Well in the vertical view of box culvert shown in FIG. 1 relaying pushing tow system Figure；
The step of Figure 15 is the course of work that the utility model box culvert relays pushing tow system one；
The step of Figure 16 is the course of work that the utility model box culvert relays pushing tow system two；
The step of Figure 17 is the course of work that the utility model box culvert relays pushing tow system three；
The step of Figure 18 is the course of work that the utility model box culvert relays pushing tow system four；
The step of Figure 19 is the course of work that the utility model box culvert relays pushing tow system five；
The step of Figure 20 is the course of work that the utility model box culvert relays pushing tow system six；
The step of Figure 21 is the course of work that the utility model box culvert relays pushing tow system seven；
The step of Figure 22 is the course of work that the utility model box culvert relays pushing tow system eight；
The step of Figure 23 is the course of work that the utility model box culvert relays pushing tow system nine；
The step of Figure 24 is the course of work that the utility model box culvert relays pushing tow system ten；
The step of Figure 25 is the course of work that the utility model box culvert relays pushing tow system 11.
Drawing reference numeral explanation：
Label Title Label Title
100 Box culvert relays pushing tow system 32 Pushing frame component
10 Workbench 40 Puller system
11 Pushing tow slot 41 Pulling force rope component
121 Dragline component 42 Chest expander
15 Predefined region 421 Second jack
16 Pushing tow area 4211 Third clamping section
20 Box culvert 4212 4th clamping section
21 Link block 50 Thrust device
22 Pushing block structure 60 Mobile mechanism
23 Channel 61 Plummer
24 Stress boss 62 Idler wheel
201 First segment box culvert 621 Shaft
202 Second segment box culvert 200 Tunnel
203 Third section box culvert 210 Tunnel portal
204 4th section of box culvert 220 Tunnel exit
205 5th section of box culvert 310 Starting Well
206 6th section of box culvert 320 Reach well
30 Thrustor 330 Pipe canopy
31 First jack 340 Steel-pipe pile
311 First clamping section 350 Existing ground installation
312 Second clamping section
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each component etc., such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description in " first ", " second " etc. involved in the utility model is only used for description purpose, without being understood that To indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " first ", At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution Conflicting or can not realize when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model Protection domain within.
In the utility model unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " can be fixedly connected or be detachably connected or integrally；It can be mechanical connection, also may be used Be electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be the connection inside two elements Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.
The utility model proposes a kind of box culvert relaying pushing tow systems 100 with box culvert pushing block structure.
Referring to figs. 1 to Figure 25, the box culvert with box culvert pushing block structure that the present embodiment proposes relays pushing tow system 100, uses In by 20 pushing tow of box culvert into tunnel 200, including be disposed adjacent with tunnel portal 210 workbench 10, positioned at workbench 10 At least two sections of box culverts 20 of top, the direction that definition 20 pushing tow of box culvert enters tunnel 200 are first direction, and definition is along the first direction The box culvert 20 that opposite second direction is arranged in order be respectively first segment box culvert 201 ... and n-th section of box culvert, n >=2, first segment Box culvert 201 and second segment box culvert 202 are most prefabricated prior to being spaced on workbench 10, first segment box culvert 201 and second segment box culvert 202 After advancing along the first direction, third section box culvert 203 is prefabricated in the original position progress of second segment box culvert 202, until first segment After 201 to the (n-1)th section of box culvert of box culvert 20 advances along the first direction, n-th section of box culvert 20 is in the most initial position of second segment box culvert 202 It is prefabricated to put progress, box culvert relaying pushing tow system 100 further includes at least one of the box culvert 20 before being located at tunnel portal 210 for pushing tow Thrustor 30, for at least puller system 40 that pulls the second to the n-th section of box culvert 20 along the first direction and for will At least thrust device 50 that some or all of box culvert 20 into tunnel portal 210 pushes along the first direction, puller system 40 are connected between two adjacent box culverts 20, and thrust device 50 is set between two adjacent box culverts 20；Each box culvert 20 is all provided with There is an at least pushing block structure 22, thrustor 30 is set on workbench 10, and supports or be connected to the pushing block structure of a box culvert 20 22。
Specifically, the main body of box culvert 20 is reinforced concrete structure.As shown in Fig. 1 to Figure 25, the box culvert 20 of the present embodiment Hop count for six sections, the box culvert with box culvert pushing block structure of the present embodiment relays pushing tow system 100 and pushes up successively along the first direction The box culvert 20 pushed away is respectively：203, the 4th sections of first segment box culvert 201, second segment box culvert 202, third section box culvert box culverts the 204, the 5th Section box culvert 205, the 6th section of box culvert 206.
More specifically, in order to facilitate the construction in 20 pushing tow tunnel 200 of box culvert, in the Xia Chuan areas of existing ground installation 350 Domain both sides need to do temporary shaft, corresponding levelling of the land work and stratum consolidation work；As shown in Figures 1 to 9, existingly The both sides of face facility 350 have excavated Starting Well 310 and have reached well 320 respectively, when tunnel 200 excavates, from the tunnel of Starting Well 310 It is gradually tunneled at entrance 210, until tunnel 200 is excavated from tunnel exit 220 in arrival well 320 after the completion of passing through, wherein, existingly Face facility 350 can be the existing ground installation of highway, railway etc., not do particular determination herein.In the box culvert of the utility model After pushing tow system 100 workbench 10 in Starting Well 310 predeterminated position cast in situs reinforced concrete floor, with And each section of box culvert 20 in incremental launching construction, it is middle prefabricated using cast-in-situ steel reinforced concrete progress in Starting Well 310.
As shown in Figures 1 to 9, the side wall of Starting Well 310 and arrival well 320 is mounted on steel-pipe pile 340 and is used as supporting, with Ensure the equipment of construction site and the safety of personnel, it is ensured that incremental launching construction is normally carried out.
As shown in figures 7 and 9, the top that tunnel 200 excavates is preset with pipe canopy 330.Wherein, pipe canopy 330 is in tunnel 200 Excavate forward position tunnel excavation contour line outer rim, the row's steel pipe squeezed by certain spacing level.Due to pipe canopy 330 in the earth formation It plays camber effect and reinforces effect, can effectively share the load of vault country rock generation, reduce excavation face earth layer in front and held The load received so as to effectively constrain the deformation of country rock, substantially reduces the risk of vault sinking and excavation face unstability, therefore, pipe The setting of canopy 330 can provide a kind of advance support for the Portal Section soft stratum excavation in tunnel 200.
Workbench 10 is disposed adjacent with tunnel portal 210 in the utility model box culvert relaying pushing tow system 100, box culvert 20 On workbench 10, thrustor 30 is set on workbench 10 and is held in a box culvert 20, and puller system 40 is connected to two Between adjacent box culvert 20, thrust device 50 is set between two adjacent box culverts 20, and the thrustor 30 of setting is used to push Box culvert 20 is moved along the first direction on workbench 10, and puller system 40 is used for the last period box culvert 20 with supporting or being connected to The adhesive force of the thrustor 30 of box culvert 20 is support, and latter section of box culvert 20 is pulled to advance along the first direction；Thrust device 50 is used In using the adhesive force of latter section of box culvert 20 and the thrustor 30 for supporting or being connected to the box culvert 20 as support, the last period case is pushed Contain 20 along the first direction to advance；Specifically,
Prior to first segment box culvert 201 prefabricated on workbench 10 and second segment box culvert 202；
Control thrustor 30 pushes first segment box culvert 201 to move along the first direction to the work and puts down in workbench 10 Platform 10 stops movement behind one end of tunnel portal 210, which partly or entirely enters tunnel portal 210；
Puller system 40 is controlled to pull second using the adhesive force that first segment box culvert 201 and thrustor 30 provide as support Section box culvert 202 moves along the first direction, until vacateing one close to 202 tail portion along the first direction of second segment box culvert on workbench 10 Working position；
Thrustor 30 is moved to working position, and thrustor 30 is controlled to push second segment box culvert 202 along the first direction It is moved to tail portion of the first segment box culvert 201 far from tunnel portal 210；In 202 progradation of second segment box culvert, in second segment case Contain 202 initial preform region, start prefabricated third section box culvert 203；
Thrust device 30 is installed on the default position between first segment box culvert 201 and second segment box culvert 202, and with second segment The adhesive force that box culvert 202 and thrustor 30 provide is support, push first segment box culvert 201 in tunnel 200 along the first direction It is mobile；
Again, control thrustor 30 pushes second segment box culvert 202 to advance along the first direction, the second segment box culvert 202 Divide or fully enter tunnel portal 210；......
Above step is repeated, until n-th section of box culvert 20 is moved along the first direction to the tail portion of (n-1)th section of box culvert 20, and reach To final position.
Need what is illustrated, " control puller system 40 is using the adhesive force that first segment box culvert 201 and thrustor 30 provide as branch Support pulls second segment box culvert 202 to move along the first direction, until on workbench 10 close to second segment box culvert 202 along the first direction Tail portion vacate a working position " in step, working position for housing and installing thrustor 30 etc., wherein, puller system 40 is drawn Dynamic second segment box culvert 202 moves, until vacateing a job close to 202 tail portion along the first direction of second segment box culvert on workbench 10 Behind position, need to be reserved with the space for the dismounting displacement of thrustor 30 etc. between first segment box culvert 201 and second segment box culvert 202, And 202 rear pushing tow slot 11 of box culvert is located at the length of work bit position can house thrustor 30, of courses, where working position Region may also include the space (all or part) for the preform region for being useful for prefabricated second segment box culvert 202 or hold The space of other devices or the space of construction for other processes etc. are put and install, the specific sky about the working position Between, the size of area is not particularly limited herein；Thrustor 30 pushes second segment box culvert 202 along the first direction in the working position Tail portion of the first segment box culvert 201 far from tunnel portal 210 is moved to, which can be located at the most initial position of first segment box culvert 201 Put or the original position and second segment box culvert 202 of the original position of second segment box culvert 202 or first segment box culvert 201 most Region between first position.That is, the region where side of the original position of second segment box culvert 202 far from tunnel portal 210 Without a reserved working region, therefore, the pushing tow region for avoiding thrustor 30 extends to the second to the n-th section of box culvert 20 most The situation of the rear end of first preform region so as to shorten the length in the pushing tow region of thrustor 30, reduces equipment carrying Distance and the quantities of construction.
Finally, sealing is reinforced by pouring etc. working procedure per between two adjacent box culverts 20, completes box culvert 20 and pass through Tunnel 200.Specifically, it when all 20 equal pushing tow to final positions of box culvert, using cast-in-situ steel reinforced concrete and is in the milk Mode connect it is integral.Therefore the cohesive position in box culvert 20 need to be reserved with connection position, including splice, grout pipe etc., This is no longer repeated one by one.
During the pushing tow of the last period box culvert 20, continue the prefabricated of next section of box culvert 20.Prefabricated one section of box culvert 20 Time of one section of box culvert 20 of time and pushing tow control in identical duration, for progress as guarantee, excavate and pushing tow work Make to continue to carry out, in this way so that place, mechanical equipment and worker obtain most efficiently utilizing, and meet narrow construction site Requirement, also substantially reduce the duration.
In addition, the excavation in tunnel 200 is gradually tunneled along 330 lower section of pipe canopy of advance support, and the driving speed in tunnel 200 It spends and matches with the fltting speed of box culvert 20.That is, the excavation on 200 stratum of tunnel will strictly control driving speed and excavate position, Unprotect segment length between 20 front end of box culvert and the excavation face in tunnel 200 must not exceed certain value, of course, the certain value by Excavation place in concrete application is determined.
It in specific construction process, often encounters that construction site is narrow, Starting Well 310 and reaches well 320 The situations such as shaft excavation difficulty.The utility model has the box culvert relaying pushing tow system 100 of box culvert pushing block structure by setting one Independent puller system 40 is covered, prefabricated the second to the n-th section of box culvert 20 is pulled to the pushing tow of thrustor 30 from its preform region Region, so as to avoid thrustor 30 pushing tow region extend to the second to the n-th section of box culvert 20 preform region feelings Condition so as to shorten the length in the pushing tow region of thrustor 30, reduces the quantities of equipment transport distance and construction；And And the construction technology of primary prefabricated, primary completion pushing tow is used compared to traditional box culvert incremental launching method, in the utility model box culvert The prefabricated, construction technology that promotes successively of segmentation box culvert 20 is distinguished using segmentation box culvert 20 after pushing tow system 100, needed for machinery The thrust that equipment provides has obtained largely reducing, and realizes the setting of mechanical equipment miniaturization, and reduce equipment and technology It is required that, lifting means stability.
In addition, each box culvert 20 is equipped with an at least pushing block structure 22, thrustor 30 is set on workbench 10, and supports Or it is connected to the pushing block structure 22 of a box culvert 20.Preferably, thrustor 30 is set on workbench 10, and is connected to a box culvert 20 Pushing block structure 22；Specifically, it since box culvert 20 is the main road surface carrier after the completion of construction in tunnel 200, is limited to The structure setting of itself of box culvert 20, in order to preferably provide an installation position in order to the installation of thrustor 30 and for pushing tow Stablizing for device 30 promotes one stress surface of offer or joint face, and pushing block structure 22 is supported or be connected to by thrustor 30.
The box culvert relaying pushing tow system 100 that the utility model has box culvert pushing block structure can be applied to big section, super large section In the box culvert incremental launching construction in face, the box culvert 20 entered in tunnel 200 using pipe canopy 330, the pushing tow of advance support has been opened to support It holes the soil body at 200 tops, can effectively control the sedimentation in boundary of works area, meet applying for stringent control surface subsidence Work requirement in particular, under the loose weaks geological conditions such as reclaimation area, is caved in risk using conventional shallow mining method hole body Greatly, a large amount of gib is needed, therefore, the utility model box culvert relaying pushing tow system 100 is ensureing construction quality and tunnel 200 it is safe while, greatly simplifie support work, save in existing subsurface excavation method, installation tunnel spray anchor supporting and The time and expense of interim steel structure support engineering.And the Tunnel Engineering of existing infrastructure, the utility model are worn under The segmentation box culvert pushing tow technology that box culvert relaying pushing tow system 100 uses significantly reduces what existing ground installation 350 was run It influences.In addition, the utility model box culvert relaying pushing tow system 100, carried out before excavating and in digging process workbench 10, The prefabricated work of 20 grade reinforced concrete structures of box culvert is completed to start structure construction again later without excavating in tunnel 200, The whole duration is shortened, there is prominent economic benefit.And the utility model box culvert relaying pushing tow system 100, using top The motive power machine equipment of 50 3 kinds of pushing device 30, puller system 40 and thrust device different-effects, realizes in small space Segmented prefabricated and pushing tow, the technology can be suitable for more various construction site and more extensive geological conditions, therefore, With larger promotional value.
Preferably, the quantity of thrustor 30 is two, which is spaced the edge for being held in a box culvert 20 Tail portion on first direction passes through the motive force that two thrustors 30 is controlled to export respectively so that box culvert 20 is along the first direction The process of upper pushing tow carries out steadily, avoids the problem that 20 pushing tow circuit of box culvert deviates；Alternatively, the quantity of thrustor 30 is Three, three thrustors 30 be spaced be held in a box culvert 20 along the first direction on tail portion, pass through and control three pushing tows The thrust that device 30 exports respectively so that the upper process promoted carries out box culvert 20 steadily along the first direction, and box culvert 20 is avoided to promote The problem of circuit deviates, and relative to the situation of two thrustors 30, three thrustors 30 of setting are ensureing pushing tow In the case of dynamic balance, the gross thrust of thrustor 30 is improved, pushing tow process is more smooth and quick.It of courses, specifically should In, the quantity of thrustor 30 can also increase or reduce, and be not particularly limited herein.
Similarly, it is preferable that the quantity of puller system 40 is alternatively two either three two or three puller systems 40 Interval is connected between two adjacent box culverts 20, by the pulling force for controlling this two or three puller systems 40 export respectively, In the case where ensureing that puller system 40 provides enough pulling force so that box culvert 20 along the first direction on the process that draws in steadily into Row, avoids the problem that box culvert 20 draws in circuit and deviates, of courses, in concrete application, the quantity of puller system 40 can also increase Add or reduce, be not particularly limited herein.
Similarly, it is preferable that the quantity of thrust device 50 is alternatively multiple, and multiple thrust device 50 is arranged at intervals at two-phase Between adjacent box culvert 20, by the pulling force that multiple thrust device 50 is controlled to export respectively, foot is provided in guarantee thrust device 50 In the case of enough thrust so that box culvert 20 carries out steadily in the process above promoted along the first direction in tunnel 200, avoids box culvert 20 The problem of circuit is promoted to deviate, of courses, and in concrete application, the quantity of thrust device 50 can also increase or reduce, This is not particularly limited.
Further, together with reference to shown in Fig. 3 to Fig. 5, each box culvert 20 is respectively provided with channel 23, and pushing block structure 22 is set on logical The bottom wall in road 23；Specifically, pushing block structure 22 is set as interim reinforced concrete structure, to ensure the intensity of pushing block structure 22, After treating 22 use of pushing block structure, pushing block structure 22 can be removed；Pushing block structure 22 is set on to the bottom wall of channel 23, is convenient to Pushing block structure 22 is connect with the installation of thrustor 30, meanwhile, it is also convenient for shaping and being convenient in pouring for pushing block structure 22 Dismounting to pushing block structure 22.
Further, together with reference to shown in Fig. 3 to Fig. 5, each box culvert 20 is also convexly equipped with close to the end of thrustor 30 At least a stress boss 24, thrustor 30 are held in stress boss 24.Specifically, stress boss 24 plays main bear From the effect of the thrust of thrustor 30, stress boss 24 protrudes from the end set of box culvert 20, is filled with providing one for pushing tow The contact face of 30 abuttings is put, it is reasonable in design effective.More specifically, as shown in figure 5, pushing block structure 22, stress are convex The height of platform 24 and dragline component 121 is successively decreased successively so that stress boss 24 is primarily subjected to the thrust from thrustor 30 Effect, and pushing block structure 22 is used to connect fixation with thrustor 30, and balance thrustor 30 and be sheathed on dragline component 121 The stress divided.
Further, together with reference to shown in Fig. 1, Fig. 2, Fig. 5, Figure 10, Figure 11 and Figure 14 to Figure 25, workbench 10 is recessed Equipped with an at least pushing tow slot 11, box culvert relaying pushing tow system 100 further includes at least one movement for being movably disposed in pushing tow slot 11 Mechanism 60 and at least one along the first direction set on pushing tow slot 11 opposite end wall dragline component 121, the one of thrustor 30 End cap is set on dragline component 121, and is equipped on mobile mechanism 60, and the other end supports or be connected to a box culvert 20；Specifically, it works Regional extent where the pushing tow slot 11 of platform 10 forms a pushing tow area 16, and thrustor 30 is partially accommodated in pushing tow slot 11 and sets In the dragline component 121, by setting pushing tow slot 11, the two lateral walls of pushing tow slot 11 play the direction of propulsion of thrustor 30 To the effect of guiding, avoid thrustor 30 and occurring the problem of deviateing default pushing tow circuit during pushing tow box culvert 20；And And dragline component 121 is set in pushing tow slot 11, avoids dragline component 121 to the inhibition in 20 moving process of box culvert, Dragline component 121 is reduced to the influence in 20 moving process of box culvert to the greatest extent.Herein, the mobile mechanism 60 of setting may be used also Play the role of being supported thrustor 30 support, reduce influence of the gravity of thrustor 30 to dragline component 121.
More specifically, by the way that one end of thrustor 30 is set to be sheathed on dragline component 121,30 pushing tow mistake of thrustor Cheng Zhong, using thrustor 30 lock onto coupling mechanism force that dragline component 121 provided as support and, utilize 30 institute of thrustor The motive force of offer is applied to box culvert 20, and box culvert 20 is pushed ahead.Herein, dragline component 121 and pushing tow slot 11 can at least rise To effect have：The side wall of pushing tow slot 11 can be oriented to the pushing tow of thrustor 30, and dragline component 121, which is hidden, is contained in pushing tow slot In 11, dragline component 121 is avoided to the inhibition in 20 moving process of box culvert, reduces dragline component to the greatest extent Influence in 121 pairs of 20 moving process of box culvert；Compared to the structures such as the counter force wall set in traditional box culvert incremental launching construction, this practicality Dragline component 121 is contained in by hiding in pushing tow slot 11 in novel box culvert relaying pushing tow system 100, more efficiently using narrow Space of narrow construction site etc..
Further, together with reference to shown in Fig. 5 and Figure 11, the thrustor 30 of the present embodiment includes being sheathed on dragline component 121 at least one first jack 31 and connection or the top being held between the first jack 31 and corresponding box culvert 20 Push bracket component 32, the first jack 31 are equipped on mobile mechanism 60.
Specifically, in order to ensure that thrustor 30 provides stable motive force, the thrustor 30 of the present embodiment is by setting It puts the first jack 31 and is sheathed on dragline component 121, during 30 pushing tow of thrustor, dragline is lock onto with the first jack 31 The coupling mechanism force that component 121 is provided for support and, the motive force provided in piston motion using the first jack 31 is applied Pushing frame component 32 is added on, steadily box culvert 20 is pushed to push ahead by pushing frame component 32.Wherein, the first jack is set 31 are equipped on mobile mechanism 60, are convenient to the shifting that the first jack 31 during 30 pushing tow of thrustor carries out on its stroke It moves or when thrustor 30 is moved to next section of 20 tail portion of box culvert progress pushing tow work next time, is convenient to first The movement of jack 31；Mobile mechanism 60 may also function as the effect that support is supported to thrustor 30, and it is very heavy to reduce first Influence of the gravity on top 31 to dragline component 121.
Need what is illustrated, pushing frame component 32 is removably connected to the first jack 31, also, the first jack 31 can be locked Tightly moved in dragline component 121 or relative to dragline component 121.30 pushing tow process of thrustor terminates that next section need to be carried out During the pushing tow step of box culvert 20, pushing frame component 32 is disassembled, also, movable sleeving is set on dragline component in a second direction 121 the first jack 31, until the first jack 31 is shifted in the tail portion of next section of box culvert 20, pushing frame component 32 is connected or It is held between the first jack 31 and the tail portion of next section of box culvert 20, is that thrustor 30 walks the pushing tow of next section of box culvert 20 Suddenly it prepares.
Further, together with reference to shown in Fig. 5 and Figure 11, the mobile mechanism 60 of the present embodiment includes carrying the first jack At least an idler wheel 62, the idler wheel 62 of 31 plummer 61 and bottom wall set on pushing tow slot 11 are rotatably connected at plummer 61. Specifically, the plummer 61 of setting reduces the gravity of the first jack 31 to dragline component 121 for carrying the first jack 31 Influence, also, set idler wheel 62 be rotatably connected at plummer 61, using idler wheel 62 rolling by the way of, realize movement The movement of mechanism 60, the mobile thrust that conveniently moving is quick, required is small, and simple in structure and reasonable design is practical.
Further, with reference to shown in Figure 11, idler wheel 62 has a shaft 621, and the both ends of shaft 621 rotationally connect respectively It is connected to plummer 61, that is, idler wheel 62 is rotatably connected at plummer 61 by shaft 621, simple and practical in structure.
Further, together with reference to shown in Fig. 2 and Figure 14, workbench 10 is additionally provided with predefined region 15, predefined region 15 and top Push away that the one end of slot 11 far from tunnel portal 210 is disposed adjacent or predefined region 15 is located at pushing tow slot 11 far from tunnel portal 210 One end.Herein, predefined region 15 is used for the prefabricated place of the second to the n-th section of box culvert 20.That is, the first segment box culvert of the present embodiment 201 carry out the prefabricated of box culvert 20 in pushing tow area 16, remaining predefined region 15 of each section of box culvert 20 on along the first direction rearward carries out It is prefabricated.
Specifically, the length of each section of box culvert 20 according to the actual total length in tunnel 200 to be traversed, pushing tow place it is big Small and incremental launching device thrust etc. is because usually determining.For example, when tunnel 200 is always about 70m, case is can be used in Starting Well 310 Contain the place length about 50m of 20 pushing process of 20 prefabricated constructions and box culvert.In concrete application, it is contemplated that the weight of box culvert 20, Maximum pull and the pushing tow dress that maximum thrust that thrustor 30 and thrust device 50 are provided, puller system 40 are provided It is unsuitable to put propelling resistance suffered in 40 course of work of 30, thrust device 50 and puller system etc. factor, every section of box culvert 20 It is long, average about 15m.First segment box culvert 201 is prefabricated in pushing tow area 16, remaining each section of box culvert 20 is prefabricated in predefined region 15, after Continue each section of box culvert 20 and pushing tow area 16, therefore pushing tow area 16 length about 30m are pulled to by puller system 40, need not extend to predefined region 15 end.More specifically, a certain range of space can be kept among pushing tow area 16 and predefined region 15, to ensure other work Program is normally carried out, such as the displacement of pushing frame component 32, the transporting of mining clay, the handling of prefabricated materials.
Further, the dragline component 121 of the present embodiment includes more draglines (not shown), and more draglines are mutually set side by side It puts, and more draglines mutually side by side afterwards near cylindrical, i.e. the circumference of dragline component 121 has more draglines to be enclosed one Circle, when the first jack 31 is arranged and lock onto dragline component 121, the stress that may be such that the first jack 31 is more preferably locked It is more efficient；Preferably, dragline is steel strand wires, and dragline component 121 is mutually twisted by more steel strand wires.Further, one And with reference to shown in Figure 11 and Figure 12, the first jack 31 has the first clamping section 311 for being close in pushing frame component 32 and with the The second clamping section 312 that one clamping section 311 is oppositely arranged, the first clamping section 311 and the second clamping section 312 are sheathed on a dragline Component 121, the first clamping section 311 are held with a firm grip or unclamped in dragline component 121, and the second clamping section 312 is held with a firm grip or unclamped in dragline group Part 121.
Specifically, the first clamping section 311 and the second clamping section 312 " can hold " dragline component by way of holding with a firm grip certainly 121 or unclamp in dragline component 121；During pushing tow, the second clamping section 312 is held with a firm grip provides coupling mechanism force in dragline component 121, First clamping section 311 is unclamped in dragline component 121, and the first jack 31 is supplied to 32 1 motive force of pushing frame component, passes through top Push bracket component 32 pushes box culvert 20 to advance along the first direction, so as to fulfill the propulsion of box culvert 20；After first jack, 31 pushing tow, First clamping section 311 hold with a firm grip in dragline component 121 and provide a coupling mechanism force, the second clamping section 312 unclamp in dragline component 121 with Make the piston return of the first jack 31, prepare for the work of pushing tow next time.
More specifically, the second clamping section 312 is connected with the piston of the first jack 31, is carried with the movement of piston It rises.After piston reaches stroke distalmost end, the first clamping section 311 is tightened, and the second clamping section 312 is loosened, and piston return prepares next A cycle.
The utility model has the box culvert 20 of the box culvert relaying pushing tow system 100 of box culvert pushing block structure prefabricated and pushing tow process The step of it is as follows：
If the dotted line frame marked in Figure 15 to Figure 25 is the location of the steel-pipe pile at 310 edge of Starting Well, the void (namely in Starting Well 310) is workbench 10 for box culvert 20 to be prefabricated and place of pushing tow in wire frame.
As shown in figure 15, the step of course of work of the utility model box culvert relaying pushing tow system 100 one, it is flat prior to working Prefabricated first segment box culvert 201 and second segment box culvert 202 are distinguished by the pushing tow area 16 and predefined region 15 of platform 10；After prefabricated, it will push up The pushing frame component 32 of pushing device 30 is installed and connected in the first jack 31, and (wherein, the first jack 31 is worn in pushing tow slot 11 Installed together when entering dragline component 121), and thrustor 30 is placed in the tail portion of first segment box culvert 201, it is thrustor 30 It prepares to the pushing tow of first segment box culvert 201；
As shown in figure 16, the step of course of work of the utility model box culvert relaying pushing tow system 100 two, is pushed up by controlling Pushing device 30 provides thrust, by first segment box culvert 201 from its former prefabricated position pushing tow to the figure position shown in first segment box culvert 201 It puts；
As shown in figure 17, the step of course of work of the utility model box culvert relaying pushing tow system 100 three, second step After 30 pushing tow of thrustor, the holding of thrustor 30 is held at the tail portion of first segment box culvert 201, by puller system 40 Both ends are installed between first segment box culvert 201 and second segment box culvert 202, then, are carried with first segment box culvert 201 and thrustor 30 The adhesive force of confession is support, by controlling puller system 40 that second segment box culvert 202 is pulled to pushing tow area 16 from predefined region 15；
As shown in figure 18, the step of course of work of the utility model box culvert relaying pushing tow system 100 four, by thrustor 30 some or all of dismountings, and the thrustor 30 is moved into installation to the tail portion of second segment box culvert 202, it is thrustor 30 It prepares to the pushing tow of second segment box culvert 201；
As shown in figure 19, the step of course of work of the utility model box culvert relaying pushing tow system 100 five, is pushed up by controlling Pushing device 30 provides thrust, by 202 pushing tow of second segment box culvert, until the stem of second segment box culvert 202 and the tail of first segment box culvert 201 Portion is connected；In 202 progradation of second segment box culvert, third is carried out at the predefined region 15 where second segment box culvert 202 is original Section box culvert 203 it is prefabricated；
As shown in figure 20, the step of course of work of the utility model box culvert relaying pushing tow system 100 six, by thrust device 50 are installed at the preformed groove position between first segment box culvert 201 and second segment box culvert 202, by controlling thrust device 50 with second The adhesive force of section box culvert 202 and thrustor 30 is support, and first segment box culvert 201 is pushed to promote preset distance along the first direction Afterwards, again, control thrust device 50 pushes second segment box culvert 202 to advance along the first direction, then thrustor 30 is controlled to push Second segment box culvert 202 advances along the first direction, so recycles one to multiple time, until first segment box culvert 201 and second segment box culvert 202 It is moved to position shown in this Fig；
As shown in figure 21, the step of course of work of the utility model box culvert relaying pushing tow system 100 seven repeats above walk After rapid, until in the diagram, 203, the 4th sections of first segment box culvert 201, second segment box culvert 202, third section box culvert box culverts 204 are Completely into tunnel 200；Wherein, using the thrust device 50 between first segment box culvert 201 and second segment box culvert 202, with second Section box culvert 202 is support, and first segment box culvert 201 is pushed to promote along the first direction；Similarly, second segment box culvert 202 and third are utilized Thrust device 50 between section box culvert 203 is support with third section box culvert 203, second segment box culvert 202 is pushed to push away along the first direction Into in addition, third section box culvert 203 and the 4th section of box culvert 204 use the same manner in propulsion in tunnel 200；
At this point, thrustor 30 pushes the 5th section of box culvert 205, until the 5th section of 205 part of box culvert enters tunnel 200；
As shown in figure 22, the step of course of work of the utility model box culvert relaying pushing tow system eight, by puller system 40 Both ends be installed between the 5th section of box culvert 205 and the 6th section of box culvert 206, then, with the 5th section of box culvert 205 and thrustor 30 The adhesive force of offer is support, by controlling puller system 40 that the 6th section of box culvert 206 is pulled to pushing tow area 16 from predefined region 15；
As shown in figure 23, the step of course of work of the utility model box culvert relaying pushing tow system 100 nine, by thrustor 30 some or all of dismountings, and the thrustor 30 is moved into installation to the tail portion of the 6th section of box culvert 206, it is thrustor 30 It prepares to the pushing tow of the 6th section of box culvert 206；
As shown in figure 24, the step of course of work of the utility model box culvert relaying pushing tow system 100 ten, is pushed up by controlling Pushing device 30 provides thrust, by the 6th section of 206 pushing tow of box culvert, until the stem of the 6th section of box culvert 206 and the tail of the 5th section of box culvert 205 Portion is connected；
As shown in figure 25, the step of course of work of the utility model box culvert relaying pushing tow system 100 11, thrust is filled It puts at the 50 preformed groove positions being installed between the 5th section of box culvert 205 and the 6th section of box culvert 206；First, by controlling thrust device 50, using the adhesive force of second to the 6th section of box culvert 206 and thrustor 30 as support, push first segment box culvert 201 along the first direction Preset distance is promoted, again, by controlling thrust device 50 with third to the 6th section of box culvert 206 and the adhesive force of thrustor 30 For support, second segment box culvert 202 is pushed to promote preset distance along the first direction；Similarly, until thrust device 50 is with the 6th section The adhesive force of box culvert 206 and thrustor 30 is support, and the 5th section of box culvert 205 is pushed to promote preset distance along the first direction, after And control thrustor 30 that the 6th section of box culvert 206 is pushed to promote along the first direction, thrust device 50 is controlled to push second segment again Box culvert 202 advances along the first direction, so recycles one to multiple time, until first segment box culvert 201 to the 6th section of box culvert 206 is moved to Final position shown in this Fig, completes the relaying pushing tow process of entire multistage box culvert 20, and urging portion construction all terminates.
Further, together with reference to shown in Fig. 2, Figure 17 and Figure 22, each box culvert 20 of the present embodiment is equipped at least one Link block 21, one end of puller system 40 are connected to the link block 21 of a box culvert 20, and the other end is connected to adjacent thereto another The link block 21 of box culvert 20.Specifically, by each box culvert 20 set an at least link block 21 and, puller system 40 Both ends are connected to the link block 21 of two adjacent box culverts 20, and the link block 21 of two adjacent box culverts 20 is used to fill for pulling force Put 40 stress point for drawing in process and the impetus of support being provided and is pulled；More specifically, before to be arranged on first direction One section of box culvert 20 is support impetus, and puller system 40 forces in latter section of box culvert 20 so that latter section of box culvert 20 is relative to preceding One section of box culvert 20 generates displacement, that is, so that latter section of box culvert 20 moves ahead along the first direction, it is thrustor into pushing tow area 16 30 pushing tow work is prepared.
Wherein, link block 21 may be disposed at the inner wall of box culvert 20, it is preferable that as shown in Fig. 2, link block 21 is set to box culvert Bottom wall inside 20, also, link block 21 is set as interim reinforced concrete structure, to ensure the intensity of link block 21；The company for the treatment of After connecing 21 use of block, link block 21 can be removed.
Further, the puller system 40 of the present embodiment includes at least a pulling force rope component 41 and at least one chest expander 42, One end of pulling force rope component 41 is connected to the link block 21 of a box culvert 20, and the other end movably runs through another case adjacent thereto Contain 20 link block 21, and connect with a chest expander 42.Specifically, with the last period box culvert 20 of the box culvert 20 where chest expander 42 To support impetus, chest expander 42 is held in corresponding link block 21, and pulls the one of pulling force rope component 41 connected to it End so that link block 21 generates displacement relative to pulling force rope component 41, that is, so that the 21 corresponding box culvert 20 along first of link block Direction moves ahead, and into pushing tow area 16, the pushing tow work for thrustor 30 is prepared.
Further, the pulling force rope component 41 of the present embodiment includes more Gen Lalisuo (not shown), and more Gen Lalisuo are mutual It is arranged side by side, and more Gen Lalisuo mutually side by side afterwards near cylindrical, i.e. the circumference of pulling force rope component 41 has more Gen Lalisuo A circle is enclosed, when chest expander 42 is arranged and lock onto pulling force rope component 41, the stress that may be such that chest expander 42 is more preferably locked It is tight more efficient；Preferably, pulling force rope is steel strand wires, and pulling force rope component 41 is mutually twisted by more steel strand wires.Further Ground, together with reference to Figure 13, Figure 17 and Figure 22, chest expander 42 includes the second jack 421, and the second jack 421, which has, to be close in The third clamping section 4211 of corresponding link block 21 and the 4th clamping section 4212 being oppositely arranged with third clamping section 4211, 4211 and the 4th clamping section 4212 of third clamping section is sheathed on a pulling force rope component 41, and third clamping section 4211 is held with a firm grip or unclamped In pulling force rope component 41, the 4th clamping section 4212 is held with a firm grip or is unclamped in pulling force rope component 41.
Specifically, 4211 and the 4th clamping section 4212 of third clamping section " can hold " pulling force rope by way of holding with a firm grip certainly Component 41 is unclamped in pulling force rope component 41；During box culvert 20 is drawn in, the 4th clamping section 4212 is held with a firm grip in pulling force rope component 41 and coupling mechanism force is provided, third clamping section 4211 is unclamped in pulling force rope component 41, and corresponding link block 21 1 is supplied to push away Power pulls corresponding box culvert 20 to advance along the first direction by link block 21, so as to fulfill the last period box culvert 20 and to support It is support in the counter-force that the thrustor 30 of this section of box culvert 20 is provided, latter section of box culvert 20 is pulled to advance along the first direction；The After two jack 421 pull the latter section of box culvert 20, third clamping section 4211 is held with a firm grip provides a lock in pulling force rope component 41 Clamp force, the 4th clamping section 4212 is unclamped in pulling force rope component 41 so that the piston return of the second jack 421, for pulling force next time Work is prepared.
More specifically, the 4th clamping section 4212 is connected with the piston of the second jack 421, is carried with the movement of piston It rises.After piston reaches stroke distalmost end, third clamping section 4211 is tightened, and the 4th clamping section 4212 is loosened, under piston return prepares One cycle.
It should be noted that after box culvert 20 draws in process, puller system 40 is removable to be unloaded down, waits for case next time Contain 20 when drawing in process and starting, then installed and used.
Further, in order to ensure that thrustor 30 is smoothed out 20 pushing tow of box culvert, dragline component in the present embodiment 121 along the first direction on length be more than any one in the second to the n-th section of box culvert 20 along the first direction on length.Specifically, First segment box culvert 201 carried out in pushing tow area 16 it is prefabricated, therefore 201 need of first segment box culvert by thrustor 30 along the first direction Pushing tow, therefore, during prefabricated first segment box culvert 201, the prefabricated position of first segment box culvert 201 can partly be located at dragline component 121 top, rest part are located at workbench 10 close to one end of tunnel portal 210, therefore, the edge of first segment box culvert 201 Length on first direction can be more than dragline component 121 along the first direction on length.It will be understood, first segment box culvert 201 along the first direction on length be also smaller than or equal to dragline component 121 along the first direction on length.And by Any one in the second to the n-th section of box culvert 20 is both needed to draw in process, thrustor by prefabrication process, puller system 40 30 pushing tow process, therefore, any one in the second to the n-th section of box culvert 20 turns to top by the process that draws in of puller system 40 During the pushing tow process of pushing device 30, it is both needed to thrustor 30 be moved to and is installed on the tail end of this section of box culvert 20, and due to top The limitation of pushing device 30 and dragline component 121, any one in the second to the n-th section of box culvert 20 along the first direction on length be respectively less than Dragline component 121 along the first direction on length.
Further, in order to ensure that thrust device 50 provides stable motive force, thrust device 50 includes an at least third Jack (not shown), the third jack is between two adjacent box culverts 20, and the both ends of the third jack point Two adjacent box culverts 20 are not supported or are connected to.Preferably, each box culvert 20 along the first direction on stem and tail portion difference The preformed groove position (not shown) being adapted is provided with, for being moved to the last period box culvert 20 in the stem of latter section of box culvert 20 During tail portion, will at least a third jack it be installed in the preformed groove position；All forward steps of box culvert 20 terminate and start When carrying out the connection of box culvert 20, to carrying out pouring sealing at the preformed groove position.Specifically, in 50 progradation of thrust device, after The counter-force that the box culvert 20 and thrustor 30 in face provide is support force, using third jack by the last period box culvert 20 to being pushed forward Into.In concrete application, the both ends of third jack are held between two adjacent sections of box culverts 20；Alternatively, third jack One end is held in one of both two adjacent box culverts 20 person, the other end and is connected to the another one of the rwo；Alternatively, third is very heavy The both ends on top are all connected between two adjacent box culverts 20, are of coursed, and can be configured in concrete application according to actual conditions, This is not particularly limited.
Further, the workbench 10 of the present embodiment is equipped with lubricant layer, by setting lubricant layer, reduces box culvert 20 and moves Frictional resistance when dynamic between box culvert 20 and ground, to reduce the jacking force of motive power machine equipment or pulling force, dynamic power machine is set It is standby that miniaturization setting can be achieved.Optionally, lubricant layer is made of snow oil and veneer, is of coursed, in concrete application, lubricant layer is also Other materials with lubrication property can be used, do not do particular determination herein.Specifically, start in the precast construction of box culvert 20 Before, first the place of workbench 10 is cleaned, snow oil is then uniformly smeared in the range of the preform region of prefabricated box culvert 20, Veneer is covered on snow oil, to reduce frictional resistance when box culvert 20 moves between 10 ground of box culvert 20 and workbench.
Preferably, the first jack 31, the second jack 421 and third jack use hydraulic jack；Specifically, The hydraulic system that first jack 31, the second jack 421 and third jack are formed, is controlled using electronic technology.More For preferably, the quantity of the first jack 31, the second jack 421 and third jack can be one or more.Optionally, first The quantity of jack 31, the second jack 421 and third jack is multiple, is controlled in time by using electronic technology control The load of the oil pressure pump of each first jack 31 is made, to keep the synchronization of corresponding 20 displacement of box culvert, and can be recorded in real time The stroke of each piston；Alternatively, control the oil pressure pump of each second jack 421 in time by using electronic technology control Load to keep the synchronization of corresponding 20 displacement of box culvert, and can record the stroke of each piston in real time；Alternatively, by using Electronic technology control controls the load of the oil pressure pump of each third jack in time, to keep the same of corresponding 20 displacement of box culvert Step, and the stroke of each piston can be recorded in real time.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention, It is every under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes or directly/is used in other related technical areas indirectly and is included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of box culvert relaying pushing tow system with box culvert pushing block structure, for by box culvert pushing tow into tunnel, which is characterized in that Workbench including being disposed adjacent with tunnel portal, at least two sections of box culverts on the workbench, define the case The direction that culvert pushing tow enters tunnel is first direction, defines the box culvert arranged along the opposite second direction of the first direction and distinguishes For first segment box culvert ... and n-th section of box culvert, n >=2, the first segment box culvert and second segment box culvert are most prior to the workbench Upper interval is prefabricated, and after first segment box culvert and second segment box culvert advance along the first direction, third section box culvert is in the second segment The original position progress of box culvert is prefabricated, until after first segment box culvert advances along the first direction to (n-1)th section of box culvert, n-th section of case The original position contained in the second segment box culvert carries out prefabricated, and box culvert relaying pushing tow system further includes is located at tunnel for pushing tow An at least thrustor for box culvert before road entrance, at least one for the second to the n-th section of box culvert to be pulled along the first direction draw Power apparatus and at least thrust device for some or all of box culvert into tunnel portal to be pushed along the first direction, The puller system is connected between two adjacent box culverts, and the thrust device is set between two adjacent box culverts；
Each box culvert is equipped with an at least pushing block structure, and the thrustor is set on the workbench, and supports or be connected to The pushing block structure of one box culvert.
2. box culvert as described in claim 1 relays pushing tow system, which is characterized in that each box culvert is respectively provided with channel, described to push away Block structure is set on the bottom wall of the channel；And/or
Each box culvert is also convexly equipped at least a stress boss, the thrustor close to the end of the thrustor and is held in institute State stress boss.
3. box culvert as described in claim 1 relays pushing tow system, which is characterized in that the workbench is recessed at least one top Slot is pushed away, the box culvert relaying pushing tow system further includes at least one mobile mechanism for being movably disposed in the pushing tow slot and at least one Along the first direction set on the dragline component of the opposite end wall of the pushing tow slot, one end of the thrustor is sheathed on described lead Rope component, and the mobile mechanism is equipped on, the other end supports or is connected to a box culvert.
4. box culvert as claimed in claim 3 relays pushing tow system, which is characterized in that the thrustor includes being sheathed on described At least one first jack of dragline component and connection are held between first jack and corresponding box culvert Pushing frame component, first jack are equipped on the mobile mechanism.
5. box culvert as claimed in claim 4 relays pushing tow system, which is characterized in that first jack, which has, is close in institute The second clamping section stated the first clamping section of pushing frame component and be oppositely arranged with first clamping section, first clamping section A dragline component is sheathed on the second clamping section, first clamping section is held with a firm grip or unclamped in the dragline component, and described It holds with a firm grip or unclamps in the dragline component in two clamping sections.
6. as described in any one of claim 1-5 box culvert relaying pushing tow system, which is characterized in that each box culvert be equipped with to A few link block, one end of the puller system are connected to the link block of a box culvert, and the other end is connected to adjacent thereto another The link block of box culvert.
7. box culvert as claimed in claim 6 relays pushing tow system, which is characterized in that the puller system includes an at least pulling force Rope component and at least a chest expander, one end of the pulling force rope component are connected to the link block of a box culvert, and the other end is movably Through the link block of another box culvert adjacent thereto, and it is connect with a chest expander.
8. box culvert as claimed in claim 7 relays pushing tow system, which is characterized in that the pulling force rope component includes more pulling force Rope, more Gen Lalisuo are mutually arranged side by side；And/or
The chest expander includes the second jack, and second jack has the third folder for being close in corresponding link block Tight portion and the 4th clamping section being oppositely arranged with the third clamping section, the third clamping section and the 4th clamping section are sheathed on One pulling force rope component, the third clamping section are held with a firm grip or unclamped in the pulling force rope component, and the 4th clamping section is held with a firm grip or pine It opens in the pulling force rope component.
9. the box culvert relaying pushing tow system as described in any one of claim 3-5, which is characterized in that the dragline component includes More draglines, the more draglines are mutually arranged side by side；And/or
The dragline component along the first direction on length be more than any one in the second to the n-th section of box culvert along the first direction on length Degree；And/or
The workbench is additionally provided with predefined region, and the predefined region is adjacent with the described one end of pushing tow slot far from tunnel portal to be set It puts or the predefined region is located at the described one end of pushing tow slot far from tunnel portal.
10. the box culvert relaying pushing tow system as described in any one of claim 1-5, which is characterized in that the thrust device packet An at least third jack is included, the third jack is between two adjacent box culverts, and the both ends of the third jack Support or be connected to respectively two adjacent box culverts；And/or
The workbench is equipped with lubricant layer.
CN201721353983.2U 2017-10-19 2017-10-19 Box culvert relaying pushing tow system with box culvert pushing block structure Active CN207554048U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107740693A (en) * 2017-10-19 2018-02-27 中国建筑工程（香港）有限公司 Box culvert relaying pushing tow system with box culvert pushing block structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107740693A (en) * 2017-10-19 2018-02-27 中国建筑工程（香港）有限公司 Box culvert relaying pushing tow system with box culvert pushing block structure
CN107740693B (en) * 2017-10-19 2019-12-20 中国建筑工程（香港）有限公司 Box culvert relay pushing system with box culvert pushing block structure

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