CN207554050U - Box culvert relaying pushing tow system with box culvert bridging arrangement - Google Patents

Abstract

The utility model discloses a kind of box culvert relaying pushing tow system with box culvert bridging arrangement.Wherein, the box culvert relays pushing tow system, for by box culvert pushing tow into tunnel, including the workbench being disposed adjacent with tunnel portal, at least two sections of box culverts on the workbench, the box culvert relaying pushing tow system further includes an at least thrustor for the box culvert before being located at tunnel portal for pushing tow, an at least puller system for the second to the n-th section of box culvert to be pulled along the first direction and at least thrust device for some or all of box culvert into tunnel portal to be pushed, the thrustor is set on the workbench, and support or be connected to a box culvert, the puller system is connected between two adjacent box culverts, the thrust device is set between two adjacent box culverts.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 bridging arrangement

Technical field

The utility model is related to box culvert pushing tow tunneling technique field, more particularly to a kind of box culvert with box culvert bridging arrangement Relay 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 bridging arrangement, 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 bridging arrangement 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 bridging arrangement 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 thrustor is set on the workbench, and supports or be connected to a box culvert, institute It states puller system to be connected between two adjacent box culverts, the thrust device is set between two adjacent box culverts；

The tail portion of each box culvert be both provided with for along the first direction on latter section of box culvert overlap joint skirtboard.

Optionally, the first segment box culvert along the first direction on front end be provided with protective cover；And/or each box culvert Outer wall is equipped at intervals with multiple groutnicks, and each box culvert is equipped at intervals with multiple grout pipes through its inner and outer wall, The grout pipe is connected with the groutnick；And/or the junction between every two adjacent box culverts is provided with multiple sealings Item.

Optionally, the workbench is recessed with an at least pushing tow slot, be provided with along the first direction in the pushing tow slot to A few guide rail, the thrustor are set on the guide rail.

Optionally, the guide rail includes dragline component, and the both ends of the dragline component are connected to the opposite of pushing tow slot End walls, one end of the thrustor are sheathed on the dragline component, and the other end is held in a box culvert.

Optionally, the dragline component includes more draglines, and the more draglines are mutually arranged side by side；And/or the top Pushing device include be sheathed on the dragline component at least one first jack and connection or be held in first jack and Pushing frame component between corresponding box culvert.

Optionally, when the thrustor includes at least one first jack for being sheathed on the dragline component and connection Or when being held in the pushing frame component between first jack and corresponding box culvert, first jack, which has, to be faced The second clamping section for being bordering on the first clamping section of the pushing frame component and being oppositely arranged with first clamping section, described first Clamping section and the second clamping section are sheathed on a dragline component, and first clamping section is held with a firm grip or unclamped in the dragline component, It holds with a firm grip or unclamps in the dragline component in second clamping section.

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 guide rail along the first direction on length be more than any one in the second to the n-th section of box culvert along first party Upward length；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 Setting or the predefined region are located at the described one end of pushing tow slot far from tunnel portal；And/or

The thrust device include an at least third jack, the third jack between two adjacent box culverts, And the both ends of the third jack support or are connected to respectively two adjacent box culverts；And/or

The workbench is equipped with lubricant layer.

It is adjacent with tunnel portal that there is the utility model the box culvert of box culvert bridging arrangement 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 bridging arrangement 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 bridging arrangement 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 the tail portion of each box culvert be both provided with for along the first direction on latter section of box culvert overlap joint skirtboard, By not having sundries during the tail portion of each box culvert setting skirtboard, guarantee box culvert pushing tow, clast is fallen into inside box culvert, is being pushed up After pushing away, the front end of the skirtboard and latter section of box culvert of each box culvert tail portion is overlapped, to close possibility between adjacent box culvert The gap of appearance.

Specifically, the box culvert relaying pushing tow system that the utility model has box culvert bridging arrangement 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 utility model box culvert relay pushing tow system while construction quality and tunnel safety is ensured, Support work is greatly simplified, is saved in existing subsurface excavation method, tunnel spray anchor supporting and interim steel structure support are installed The time and expense of engineering.And the Tunnel Engineering of existing infrastructure is worn under, the utility model box culvert relaying pushing tow system The segmentation box culvert pushing tow technology that system uses significantly reduces the influence run to existing ground installation.In addition, the utility model Box culvert relays pushing tow system, and the pre- of the reinforced concrete structures such as workbench, box culvert is carried out before excavating and in digging process Work processed without starting structure construction again after being completed in tunnelling, shortens the whole duration, has prominent warp Ji benefit.And the utility model box culvert relaying pushing tow system, using three kinds of thrustor, puller system and thrust device not With the motive power machine equipment of effect, the segmented prefabricated and pushing tow in small space is realized, which can be suitable for more Various construction site and more extensive geological conditions, therefore, there is great 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 bridging arrangement Structure schematic diagram；

Fig. 2 is the partial enlarged view at A in Fig. 1；

Fig. 3 is the structure diagram at another visual angle that box culvert shown in FIG. 1 relays pushing tow system；

Fig. 4 is the partial enlarged view at B in Fig. 3；

Fig. 5 is the structure diagram at the another visual angle that box culvert shown in FIG. 1 relays pushing tow system；

Fig. 6 is the partial enlarged view at C in Fig. 5；

Fig. 7 is that there is the utility model the box culvert of box culvert bridging arrangement to relay the part assembling in one embodiment of pushing tow system Structure diagram；

Fig. 8 joint detail structures between the bottom plate of box culvert adjacent in the box culvert relaying pushing tow system of the utility model Figure；

Fig. 9 joint detail structures between the top plate of box culvert adjacent in the box culvert relaying pushing tow system of the utility model Figure；

Figure 10 is the partial enlarged view at D in Fig. 7；

It is very heavy that Figure 11 is that there is the utility model the box culvert of box culvert bridging arrangement to relay in one embodiment of pushing tow system first The structure diagram on top；

It is very heavy that Figure 12 is that there is the utility model the box culvert of box culvert bridging arrangement to relay in one embodiment of pushing tow system second Push up the structure diagram being connect with a link block；

Structural representations of the Figure 13 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 14 is the course of work that the utility model box culvert relays pushing tow system one；

The step of Figure 15 is the course of work that the utility model box culvert relays pushing tow system two；

The step of Figure 16 is the course of work that the utility model box culvert relays pushing tow system three；

The step of Figure 17 is the course of work that the utility model box culvert relays pushing tow system four；

The step of Figure 18 is the course of work that the utility model box culvert relays pushing tow system five；

The step of Figure 19 is the course of work that the utility model box culvert relays pushing tow system six；

The step of Figure 20 is the course of work that the utility model box culvert relays pushing tow system seven；

The step of Figure 21 is the course of work that the utility model box culvert relays pushing tow system eight；

The step of Figure 22 is the course of work that the utility model box culvert relays pushing tow system nine；

The step of Figure 23 is the course of work that the utility model box culvert relays pushing tow system ten；

The step of Figure 24 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	40	Puller system
10	Workbench	41	Pulling force rope component
				11	Pushing tow slot	42	Chest expander
12	Guide rail	421	Second jack
				121	Dragline component	4211	Third clamping section
15	Predefined region	4212	4th clamping section
				16	Pushing tow area	50	Thrust device
20	Box culvert	200	Tunnel
				21	Link block	210	Tunnel portal
22	Preformed groove position	220	Tunnel exit
				201	First segment box culvert	310	Starting Well
202	Second segment box culvert	320	Reach well
				203	Third section box culvert	330	Pipe canopy
204	4th section of box culvert	340	Steel-pipe pile
				205	5th section of box culvert	350	Existing ground installation
206	6th section of box culvert	61	Skirtboard
				30	Thrustor	62	Protective cover
31	First jack	71	Sealing rod
				311	First clamping section	72	Grout pipe
312	Second clamping section	73	Groutnick
				32	Pushing frame component

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 bridging arrangement.

Referring to figs. 1 to Figure 24, the box culvert with box culvert bridging arrangement 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, thrustor 30 are set on workbench 10, and support or be connected to a box culvert 20, and puller system 40 is connected between two adjacent box culverts 20, is pushed away Power apparatus 50 is set between two adjacent box culverts 20；The tail portion of each box culvert 20 be both provided with for along the first direction on The skirtboard 61 that latter section of box culvert 20 overlaps.

Specifically, the main body of box culvert 20 is reinforced concrete structure.As shown in Fig. 1 to Figure 24, the box culvert 20 of the present embodiment Hop count for six sections, the box culvert 20 of pushing tow is respectively the box culvert relaying pushing tow system 100 of the present embodiment successively along the first direction：The One section of box culvert 201, second segment box culvert 202,203, the 4th sections of box culverts 204 of third section box culvert, the 5th section of box culvert 205, the 6th section of case Contain 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 6, 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 6, 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 Figure 4 and Figure 6, 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.

The box culvert that the utility model has box culvert bridging arrangement relays workbench 10 and tunnel portal in pushing tow system 100 210 are disposed adjacent, and box culvert 20 is located on workbench 10, and thrustor 30 is set on workbench 10 and is held in a box culvert 20, Puller system 40 is connected between two adjacent box culverts 20, and thrust device 50 is set between two adjacent box culverts 20, setting For box culvert 20 to be pushed to be moved along the first direction on workbench 10, puller system 40 is used for the last period case thrustor 30 The adhesive force for containing 20 thrustor 30 with supporting or being connected to box culvert 20 is support, pulls latter section of box culvert 20 along the first direction Advance；Thrust device 50, for the adhesive force of latter section of box culvert 20 and the thrustor 30 for supporting or being connected to the box culvert 20 For support, the last period box culvert 20 is pushed to advance along the first direction；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 can be used for housing and installing thrustor 30 etc., wherein, puller system 40 Second segment box culvert 202 is pulled to move, until vacateing a work close to 202 tail portion along the first direction of second segment box culvert on workbench 10 After making position, need to be reserved with the sky for the dismounting displacement of thrustor 30 etc. between first segment box culvert 201 and second segment box culvert 202 Between, 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, working position institute Region may also include the preform region for being useful for prefabricated second segment box culvert 202 space (all or part) or Person houses and installs the space of other devices or the space of construction for other processes etc., the tool about the working position Body space, area size be not particularly limited herein；Thrustor 30 pushes second segment box culvert 202 along first in the working position Direction is moved to tail portion of the first segment box culvert 201 far from tunnel portal 210, which can be located at first segment box culvert 201 most First position or the original position of second segment box culvert 202 or the original position of first segment box culvert 201 and second segment box culvert 202 Original position between region.That is, where side of the original position of second segment box culvert 202 far from tunnel portal 210 Region need not reserve a working region, therefore, the pushing tow region for avoiding thrustor 30 extends to the second to the n-th section of box culvert The situation of the rear end of 20 initial preform regions so as to shorten the length in the pushing tow region of thrustor 30, reduces equipment Transport 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 box culvert relays pushing tow system 100 by setting a set of independent puller system 40, Prefabricated the second to the n-th section of box culvert 20 is pulled to the pushing tow region of thrustor 30 from its preform region, so as to avoid pushing tow The pushing tow region of device 30 extends to the situation of the preform region of the second to the n-th section of box culvert 20, so as to shorten pushing tow dress The length in 30 pushing tow region is put, reduces the quantities of equipment transport distance and construction；Also, compared to traditional box culvert top Pushing manipulation is using primary prefabricated, the primary construction technology for completing pushing tow, and the utility model box culvert relaying pushing tow system 100 is using segmentation Box culvert 20 distinguishes the prefabricated, construction technology that promotes successively of segmentation box culvert 20, needed for the thrust that provides of mechanical equipment obtain It largely reduces, realizes the setting of mechanical equipment miniaturization, and reduce equipment and technology requirement, lifting means stability.

And together with reference to Fig. 6 to Fig. 9, the tail portion of each box culvert 20 be both provided with for along the first direction on after The skirtboard 61 that one section of box culvert 20 overlaps.Specifically, by setting skirtboard 61 in the tail portion of each box culvert 20, ensure 20 pushing tow of box culvert Period does not have sundries, clast is fallen into inside box culvert 20, after pushing tow, the skirtboard 61 of each 20 tail portion of box culvert with latter section The front end of box culvert 20 is overlapped, to close the gap being likely to occur between adjacent box culvert 20.

The box culvert relaying pushing tow system 100 that the utility model has box culvert bridging arrangement 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. 2 and Figure 13, workbench 10 is recessed with an at least pushing tow slot 11, pushing tow slot An at least guide rail 12 is provided in 11 along the first direction, thrustor 30 is set on guide rail 12.Specifically, the pushing tow of workbench 10 Regional extent where slot 11 forms a pushing tow area 16, and thrustor 30 is partially accommodated in pushing tow slot 11 and is set on the guide rail 12, By setting pushing tow slot 11, the two lateral walls of pushing tow slot 11 play the role of guiding to the direction of propulsion of thrustor 30, keep away Exempt from thrustor 30 and occur the problem of deviateing default pushing tow circuit during pushing tow box culvert 20；Also, guide rail 12 is set to In pushing tow slot 11, guide rail 12 is avoided to the inhibition in 20 moving process of box culvert, it is right to reduce guide rail 12 to the greatest extent Influence in 20 moving process of box culvert.

Further, together with reference to shown in Fig. 2 and Figure 13, 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, together with reference to shown in Fig. 2 and Figure 10, guide rail 12 includes dragline component 121, and the two of dragline component 121 End is connected to the opposite end wall of pushing tow slot 11, and one end of thrustor 30 is sheathed on dragline component 121, and the other end supports In a box culvert 20.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 two lateral walls of pushing tow slot 11 are oriented to the pushing tow of thrustor 30, avoid dragline component 121 to box culvert Inhibition in 20 moving process reduces dragline component 121 to the influence in 20 moving process of box culvert to the greatest extent；Phase Than structures such as the counter force walls that is set in traditional box culvert incremental launching construction, dragline in the utility model box culvert relaying pushing tow system 100 Component 121 is contained in by hiding in pushing tow slot 11, more efficiently utilizes space of narrow construction site etc..

Further, in order to ensure that thrustor 30 provides stable motive force, together with reference to shown in Fig. 2 and Figure 10, top Pushing device 30 includes being sheathed at least one first jack 31 of dragline component 121 and connection or is held in the first jack 31 Pushing frame component 32 between corresponding box culvert 20.Specifically, by the way that the first jack 31 is set to be sheathed on dragline group During 30 pushing tow of thrustor, coupling mechanism force that dragline component 121 provided is lock onto as branch using the first jack 31 for part 121 Support and, the motive force provided in piston motion stroke using the first jack 31 is applied to pushing frame component 32, passes through Pushing frame component 32 steadily pushes box culvert 20 to push ahead.The first jack 31 and dragline component 121 of thrustor 30 are equal (in pushing tow slot 11) located underground has the effect of security protection.

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.Need what is illustrated, Pushing frame component 32 is removably connected to the first jack 31, also, the first jack 31 can lock onto dragline component 121 or Person moves relative to dragline component 121.When 30 pushing tow process of thrustor terminates need to carry out the pushing tow step of next section of box culvert 20, Pushing frame component 32 is disassembled, also, movable sleeving is set on the first jack 31 of dragline component 121 in a second direction, until First jack 31 is shifted in the tail portion of next section of box culvert 20, and pushing frame component 32 is installed on dragline component 121, and connect 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 Figure 10 and Figure 11, the first jack 31, which has, is close in pushing frame component 32 First clamping section 311 and the second clamping section 312 being oppositely arranged with the first clamping section 311, the first clamping section 311 and second clamp Portion 312 is sheathed on a dragline component 121, and the first clamping section 311 is held with a firm grip or unclamped in dragline component 121, the second clamping section 312 It holds with a firm grip or unclamps in dragline component 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 bridging arrangement prefabricated and pushing tow process The step of it is as follows：

If the dotted line frame marked in Figure 13 to Figure 24 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 14, 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 15, 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 16, 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 17, 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 18, 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 19, 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 22 between first segment box culvert 201 and second segment box culvert 202, by controlling thrust device 50 with The adhesive force of two sections of box culverts 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 20, 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 21, 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 22, 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 23, 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 24, 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 22 being installed between the 5th section of box culvert 205 and the 6th section of box culvert 206；First, by the way that thrust is controlled to fill 50 are put using the adhesive force of second to the 6th section of box culvert 206 and thrustor 30 as support, pushes first segment box culvert 201 along first party To preset distance is promoted, again, by controlling attachment of the thrust device 50 with third to the 6th section of box culvert 206 and thrustor 30 Power is support, and second segment box culvert 202 is pushed to promote preset distance along the first direction；Similarly, until thrust device 50 is with the 6th The adhesive force of section 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, Then control thrustor 30 pushes the 6th section of box culvert 206 to promote along the first direction, thrust device 50 is controlled to push second again Section 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 moves To final position shown in this Fig, the relaying pushing tow process of entire multistage box culvert 20 is completed, urging portion construction all terminates.

Further, together with reference to shown in Fig. 2, Figure 16 and Figure 21, 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 link block 21 and intensity；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, together with reference to Figure 12, Figure 16 and Figure 21, chest expander 42 includes the second jack 421, the second jack 421 have the third clamping section 4211 for being close in corresponding link block 21 and be oppositely arranged with third clamping section 4211 the Four clamping sections 4212,4211 and the 4th clamping section 4212 of third clamping section are sheathed on a pulling force rope component 41, third clamping section 4211 hold with a firm grip or unclamp in pulling force rope component 41, and the 4th clamping section 4212 is held with a firm grip or unclamped in pulling force rope component 41.

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.

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 pushing frame component 32 of this section of box culvert 20 is provided, latter section of box culvert 20 is pulled to advance along the first direction； After second jack, 421 pushing tow, third clamping section 4211 is held with a firm grip provides a coupling mechanism force in pulling force rope component 41, and the 4th clamps Portion 4212 is unclamped in pulling force rope component 41 so that the piston return of the second jack 421, prepares for the work of pulling force next time.

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, 12 edge of the present embodiment middle guide Length on first direction 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 carries out prefabricated in pushing tow area 16, therefore by thrustor 30, pushing tow is 201 need of first segment box culvert along the first direction Can, therefore, during prefabricated first segment box culvert 201, the prefabricated position of first segment box culvert 201 can partly be located at the top of guide rail 12, Remaining part point is located at workbench 10 close to one end of tunnel portal 210, therefore, first segment box culvert 201 along the first direction on Length can be more than guide rail 12 along the first direction on length.Will be understood, first segment box culvert 201 along the first direction on Length be also smaller than or equal to guide rail 12 along the first direction on length.And due in the second to the n-th section of box culvert 20 Any one is both needed to draw in process, the pushing tow process of thrustor 30 by prefabrication process, puller system 40, therefore, second Any one into n-th section of box culvert 20, by puller system 40 when drawing in process and turning to the pushing tow process of thrustor 30, Thrustor 30 need to be moved and be installed on the tail end of this section of box culvert 20, and due to the limitation of thrustor 30 and guide rail 12, Any one in the second to the n-th section of box culvert 20 along the first direction on length be respectively less than guide rail 12 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), third jack between two adjacent box culverts 20, and the both ends of third jack support respectively or It is connected to two adjacent box culverts 20.Preferably, as shown in figure 8, each box culvert 20 along the first direction on stem and portion It is not provided with the preformed groove position 22 being adapted, for being moved to the tail portion of the last period box culvert 20 in the stem of latter section of box culvert 20 When, it will at least a third jack be installed in the preformed groove position 22；All forward steps of box culvert 20 terminate and start into When the connection of row box culvert 20 pours, to carrying out pouring sealing at the preformed groove position 22.Specifically, in 50 progradation of thrust device, The counter-force provided using box culvert 20 below and thrustor 30 as support force, using third jack by the last period box culvert 20 forward It promotes.In concrete application, the both ends of third jack are held between two adjacent two sections of box culverts 20；Alternatively, third is very heavy The one end on top is held in one of both two adjacent two sections of box culverts 20 person, the other end and is connected to the another one of the rwo；Alternatively, The both ends of third jack are all connected between two adjacent two sections of box culverts 20, are of coursed, can be according to practical feelings in concrete application Condition is configured, and is not particularly limited herein.

Further, together with reference to Fig. 6 to Fig. 9, in the present embodiment first segment box culvert 201 along the first direction on front end set It is equipped with protective cover 62.Specifically, protective cover 62 is made of Steel material, by setting protective cover in the front end of first segment box culvert 201 62, cause there are out-of-flatness position the friction or shock on structure and stratum to avoid the excavation face in tunnel 200.

Further, together with reference to Fig. 8 to Fig. 9, the outer wall of each box culvert 20 is equipped at intervals with multiple fillings in the present embodiment Groove 73 is starched, and each box culvert 20 is equipped at intervals with multiple grout pipes 72 through its inner and outer wall, grout pipe 72 and grouting Groove 73 connects.Specifically, terminate in the work of 20 pushing tow of box culvert and after the completion of the connection work between adjacent box culvert 20, need Operation is filled to the gap between 200 stratum of box culvert 20 and tunnel, by setting reserved grout pipe 72 in box culvert 20, Grout filling can be carried out to the gap between the outer wall of 20 surrounding of box culvert and stratum；More specifically, as shown in Figure 8 and Figure 9, it fills It is in " Ω " shape structure to starch groove 73, is made of steel material, during pushing tow, passes through grout pipe 72 and the filling communicated therewith Starch groove 73, toward the stratum in box culvert 20 and tunnel 200 between inject the materials such as bentonite slurry, to fill box culvert 20 and peripherally Hole between layer, does lubricant and is used, to reduce the frictional resistance during pushing tow, of course, and in concrete application, grouting is recessed Slot 73 can be set as other shapes according to actual use situation, is made of other materials, be not particularly limited herein.

Further, together with reference to Fig. 8 to Fig. 9, in the present embodiment per two adjacent box culverts 20 between junction setting There are multiple sealing rods 71.By being provided with multiple sealing rods 71, to carry out closing sealing between two adjacent box culverts 20, into one Step promotes its waterproof effect.

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 bridging arrangement, 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 being arranged in order along the opposite second direction of the first direction Respectively 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 work It is spaced prefabricated on platform, after first segment box culvert and second segment box culvert advance along the first direction, third section box culvert is in described the The original position progress of two sections of box culverts is prefabricated, until after first segment box culvert advances along the first direction to (n-1)th section of box culvert, n-th Section box culvert is prefabricated in the original position progress of the second segment box culvert, and the box culvert relaying pushing tow system is further included for pushing tow position An at least thrustor for box culvert before tunnel portal, for the second to the n-th section of box culvert to be pulled at least along the first direction One puller system and at least thrust for some or all of box culvert into tunnel portal to be pushed along the first direction Device, the thrustor is set on the workbench, and supports or be connected to a box culvert, and the puller system is connected to two-phase Between adjacent box culvert, the thrust device is set between two adjacent box culverts；

The tail portion of each box culvert be both provided with for along the first direction on latter section of box culvert overlap joint skirtboard.

2. box culvert as described in claim 1 relays pushing tow system, which is characterized in that the first segment box culvert along the first direction on Front end be provided with protective cover；And/or

The outer wall of each box culvert is equipped at intervals with multiple groutnicks, and each box culvert be equipped at intervals with it is multiple through its inner wall and The grout pipe of outer wall, the grout pipe are connected with the groutnick；And/or

Junction between per two adjacent box culverts is provided with multiple sealing rods.

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, is provided with an at least guide rail in the pushing tow slot along the first direction, the thrustor is set on the guide rail.

4. box culvert as claimed in claim 3 relays pushing tow system, which is characterized in that the guide rail includes dragline component, described The both ends of dragline component are connected to the opposite end wall of pushing tow slot, and one end of the thrustor is sheathed on the dragline group Part, the other end are held in a box culvert.

5. box culvert as claimed in claim 4 relays pushing tow system, which is characterized in that the dragline component includes more draglines, The more draglines are mutually arranged side by side；And/or

The thrustor includes at least one first jack for being sheathed on the dragline component and connection or is held in described the Pushing frame component between one jack and corresponding box culvert.

6. box culvert as claimed in claim 5 relays pushing tow system, which is characterized in that when the thrustor includes being sheathed on institute It states at least one first jack of dragline component and connects or be held between first jack and corresponding box culvert Pushing frame component when, 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.

7. as described in any one of claim 1-6 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.

8. box culvert as claimed in claim 7 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.

9. box culvert as claimed in claim 8 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.

10. the box culvert relaying pushing tow system as described in any one of claim 3-6, which is characterized in that the guide rail is along first Length on direction 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, 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；And/or

The thrust device includes an at least third jack, and the third jack is between two adjacent box culverts, and institute The both ends for stating third jack support or are connected to respectively two adjacent box culverts；And/or

The workbench is equipped with lubricant layer.