CN114991030B - Accurate space positioning system and method for prefabricated box culvert - Google Patents
Accurate space positioning system and method for prefabricated box culvert Download PDFInfo
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- CN114991030B CN114991030B CN202210553640.XA CN202210553640A CN114991030B CN 114991030 B CN114991030 B CN 114991030B CN 202210553640 A CN202210553640 A CN 202210553640A CN 114991030 B CN114991030 B CN 114991030B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 95
- 238000010276 construction Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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Abstract
The invention discloses a precise space positioning system and a precise space positioning method for a prefabricated box culvert, which belong to the technical field of prefabricated culvert construction, and comprise a concrete foundation provided with at least one groove; the walking lifting mechanism can be arranged in the groove in a movable way along the groove, and a support which can be adjusted in a lifting way of the walking lifting mechanism is connected to the bottom of the box culvert to be positioned; the positioning mechanism is arranged on the concrete foundation in parallel with the groove and can be connected with the box culvert to be positioned and enable the box culvert to be positioned to move in the direction perpendicular to the groove; the remote control mechanism is respectively in communication control connection with the walking lifting mechanism and the positioning mechanism and is used for controlling the start and stop operations of the walking lifting mechanism and the positioning mechanism. The invention can realize accurate space positioning of the prefabricated box culvert, fully utilizes the whole concrete foundation structure, is simple and flexible, is quick and efficient in positioning, and saves cost by repeated use.
Description
Technical Field
The invention belongs to the technical field of bridge prefabrication culvert construction, and particularly relates to a precise space positioning system and method for a prefabrication box culvert.
Background
At present, the prefabricated box culvert is being widely popularized and applied nationwide, the safety risk and the economic cost of field construction operation are reduced to a certain extent, but the field hoisting aspect is also provided with a certain safety risk, the hoisting cost is higher, the prefabricated box culvert section is heavier, the prefabricated box culvert section is generally hoisted by a heavy crane on site, the longitudinal and transverse accurate positioning of the prefabricated box culvert section is carried out by constructors, the hoisting cost is more and more expensive along with the increase of hoisting weight, and the box culvert section positioning by personnel is provided with a certain safety risk.
Therefore, the inventor combines years of construction experience of prefabricated box culverts, develops a prefabricated box culvert accurate space positioning system and a prefabricated box culvert accurate space positioning method, the system method mainly adopts a mechanized means to realize the on-site accurate assembly of the prefabricated box culverts, only one constructor is required to complete the assembly, the device only needs one-time investment cost, the construction can be repeated, the on-site assembly cost of the existing prefabricated box culverts can be greatly reduced in an intangible way, the on-site assembly efficiency is improved, and the risk of constructors is reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a system and a method for accurately positioning the space of a prefabricated box culvert, which can realize the accurate space positioning of the prefabricated box culvert, fully utilize the whole concrete foundation structure, and have the advantages of simplicity, dexterity, rapidness, high efficiency, repeated use and cost saving.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the present invention provides a prefabricated box culvert accurate spatial positioning system, comprising:
the concrete foundation is provided with at least one groove;
the walking lifting mechanism can be arranged in the groove in a movable manner along the groove, and a support capable of being adjusted in a lifting manner of the walking lifting mechanism is connected to the bottom of the box culvert to be positioned;
the positioning mechanism is arranged on the concrete foundation in parallel with the groove and can be connected with the box culvert to be positioned and enable the box culvert to be positioned to move in the position perpendicular to the groove;
the remote control mechanism is respectively in communication control connection with the walking lifting mechanism and the positioning mechanism and is used for controlling the start and stop operations of the walking lifting mechanism and the positioning mechanism.
Furthermore, two grooves which are arranged in parallel are formed in the concrete foundation.
Further, the walking lifting mechanism comprises a walking device and a lifter, the walking device moves along the bottom of the groove, the bottom end of the lifter is fixedly arranged on the walking device, and a support with the top end capable of lifting relative to the bottom end is connected to the bottom of the box culvert to be positioned.
Further, the walking device comprises a guide rail fixedly arranged at the bottom of the groove, a driving wheel set moving along the guide rail and a supporting frame arranged on the driving wheel set;
the lifter comprises an electric control lifting rod and a supporting top plate with certain rigidity, wherein a fixing part of the electric control lifting rod is fixed on the supporting frame, and the lifting part is fixedly connected with the supporting top plate.
Further, the positioning mechanism comprises a first positioner and a second positioner which are arranged in pairs along one side away from each other between the two grooves, and the first positioner and the second positioner respectively abut against two side faces of the box culvert to be positioned so as to cooperatively clamp the box culvert to be positioned to move in the direction perpendicular to the grooves.
Further, the first positioner comprises a first limit rail, a first movable supporting frame, at least one first telescopic rod and a side plate with certain rigidity;
the first limit track is fixedly arranged between the two grooves, away from one of the two sides, and is arranged along the extending direction of the grooves;
the first movable supporting frame is movably arranged on the first limiting rail along the extending direction of the groove and is limited and fixed in the direction perpendicular to the groove;
the fixed part of the first telescopic rod is fixedly arranged on the first movable supporting frame, and the free end of the first telescopic rod is telescopic along the vertical direction of the groove and is used for being propped against and connected with the side face of the box culvert to be positioned through the side plate.
Further, the second positioner comprises a second limiting rail, a second movable supporting frame, at least one second telescopic rod and a side plate with certain rigidity;
the second limit track is fixedly arranged between the two grooves, and one of two opposite sides of the second limit track is opposite to the first limit track in pairs;
the second movable supporting frame is movably arranged on the second limiting rail along the extending direction of the groove and is limited and fixed in the direction perpendicular to the groove;
the fixed part of the second telescopic rod is fixedly arranged on the second movable supporting frame, the free end of the second telescopic rod and the free end of the first telescopic rod are arranged in pairs in opposite directions, and the second telescopic rod is telescopic along the direction perpendicular to the groove and is used for being in abutting connection with the side face of the box culvert to be positioned through the side plate.
Further, the first limiting track and the second limiting track are long strips with L-shaped cross sections, and the first telescopic rod and the second telescopic rod comprise vertical rollers and transverse rollers which are propped against and roll on the vertical side surfaces and the transverse bottom surfaces of the corresponding L-shaped long strips along the direction of the groove.
Further, the first limiting rail and the second limiting rail are provided with a reinforcing angle steel on the opposite side.
Further, an inverted U-shaped connecting frame is fixedly connected between the first movable supporting frame and the second movable supporting frame in the vertical direction, and the inverted U-shaped opening space of the connecting frame at least can accommodate a prefabricated box culvert to be positioned.
Further, a yellow sand cushion layer with a certain thickness is paved on the concrete foundation area between the two grooves.
In a second aspect, the invention provides a continuous automatic accurate positioning method for a prefabricated box culvert based on any one of the first aspect, which comprises the following method steps:
performing prefabricated box culvert members in a factory and performing concrete foundation construction on site, and arranging two grooves which are parallel to each other in the concrete foundation according to construction requirements;
the method comprises the steps that walking lifting mechanisms are arranged in two grooves which are parallel to each other of a concrete foundation, each walking lifting mechanism is adjusted to be at the same horizontal height, and lifters of the walking lifting mechanisms are in an extending state;
a first limiting guide rail and a second limiting guide rail are fixedly arranged on two opposite sides of the two grooves along the extending direction of the grooves, a first movable supporting frame connected with at least one first telescopic rod and a second movable supporting frame connected with at least one second telescopic rod are respectively arranged, and the first telescopic rod and the second telescopic rod are in a contracted state;
hanging the prefabricated box culvert to be positioned on a walking lifting mechanism through lifting equipment, wherein a supporting plate with certain rigidity of a lifter is supported and connected to the bottom of the prefabricated box culvert to be positioned, so that a moving gap is reserved between the prefabricated box culvert to be positioned and the top surface of the concrete foundation;
the first telescopic rod and the second telescopic rod are adjusted to extend through the remote control mechanism and are respectively pressed against two sides of the prefabricated box culvert to be positioned through the clamping side plates, the travelling device of the travelling lifting mechanism is controlled to move to a longitudinal preset installation position along the groove through the remote control mechanism, and the matched expansion and contraction between the first telescopic rod and the second telescopic rod are synchronously controlled through the remote control mechanism so that the prefabricated box culvert to be positioned can move and be adjusted to a transverse preset installation position in the direction perpendicular to the groove;
the lifter, the first telescopic rod and the second telescopic rod are respectively contracted and separated from the prefabricated box culvert to be positioned through the remote control mechanism, the prefabricated box culvert to be positioned is arranged on a yellow sand cushion layer on a concrete foundation, and the lifter, the first telescopic rod and the second telescopic rod move along the extending direction of the groove to perform automatic accurate positioning operation of the prefabricated box culvert to be positioned of the next section;
repeating the steps to complete the installation of all the prefabricated box culvert sections to be positioned;
sequentially evacuating the walking lifting mechanism and the positioner, and backfilling the groove with concrete after the construction of other procedures of the box culvert section is completed; and (5) completing the whole construction of the prefabricated box culvert.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the groove of the travelling lifting mechanism and the positioning mechanism arranged on one side of the groove are arranged on the top surface of the concrete foundation, the accurate positioning of the prefabricated box culvert to be positioned in the extending direction and the vertical direction of the groove is realized by combining the cooperation operation between the travelling lifting mechanism and the positioning mechanism, the layout between the travelling lifting mechanism and the positioning mechanism is compact and flexible by combining the bearing platform structure, the site requirement is low, the problems of complex operation, high site requirement, difficult synchronous adjustment of the extending direction and the vertical direction and the like of the prefabricated box culvert hoisting positioning mechanism on the construction site are solved, the construction method is simple in process, convenient to operate, and can be repeatedly used, save manpower and improve the working efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a precise spatial positioning system for prefabricated box culverts in an embodiment of the invention;
FIG. 2 is a top view of a precise spatial positioning system for prefabricated box culverts in an embodiment of the invention;
FIG. 3 is a front view of a walking lifting mechanism according to an embodiment of the present invention;
FIG. 4 is a side view of a walking lifting mechanism according to an embodiment of the present invention;
FIG. 5 is a front view of a positioning mechanism according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a connecting frame according to an embodiment of the present invention.
In the figure:
1. prefabricating box culverts; 2. a concrete foundation; 3. a groove; 4. a yellow sand cushion layer; 5. a walking device; 6. a lifter; 7. a first positioner; 8. a second positioner; 9. a first limit rail; 10. the second limit rail; 11. a first movable support frame; 12. a second movable support frame; 13. a first telescopic rod; 14. a second telescopic rod; 15. reinforcing angle steel; 16. a vertical roller; 17. a transverse roller; 18. a side plate; 19. a guide rail; 20. driving the wheel set; 21. a support frame; 22. a lifting rod; 23. a supporting top plate; 24. a remote control mechanism; 25. a connecting frame; 26. and (5) a bolt.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1 and fig. 2, in an embodiment of the present invention, a precise spatial positioning system for a prefabricated box culvert is provided, where the system includes:
the concrete foundation 2 is provided with at least one groove 3;
the walking lifting mechanism can be movably arranged in the groove 3 along the groove 3, and a support which can be adjusted in a lifting way of the walking lifting mechanism is connected to the bottom of the box culvert to be positioned;
the positioning mechanism is arranged on the concrete foundation 2 in parallel with the groove 3 and can be connected with the box culvert to be positioned and enable the box culvert to be positioned to move in the direction perpendicular to the groove 3;
the remote control mechanism 24, the remote control mechanism 24 is connected with the walking lifting mechanism and the positioning mechanism in a communication control way respectively, and is used for controlling the start and stop operations of the walking lifting mechanism and the positioning mechanism.
In this embodiment, the remote control mechanism 24 may be in signal connection with the walking lifting mechanism and the positioning mechanism through wired communication or wireless communication, for controlling the movement position of the walking lifting mechanism along the groove 3 and making the lifter 6 of the walking lifting mechanism in an extended or contracted state, and controlling the expansion link of the positioning mechanism to extend or contract along the direction perpendicular to the groove 3.
In some embodiments, the concrete foundation 2 is provided with two grooves 3 arranged parallel to each other. Each groove 3 is provided with the walking lifting mechanism so as to more stably support the box culvert 1 to be prefabricated.
The walking lifting mechanism comprises a walking device 5 and a lifter 6, the walking device 5 moves along the bottom of the groove 3, the bottom end of the lifter 6 is fixedly arranged on the walking device 5, and a support with the top end capable of lifting relative to the bottom end is connected to the bottom of a box culvert to be positioned.
Specifically, as shown in fig. 3 and 4, the walker 5 includes a guide rail 19 fixedly provided at the bottom of the channel 3, a driving wheel set 20 moving along the guide rail 19, and a supporting frame 21 provided on the driving wheel set 20.
The guide rail 19 adopts the I-steel, extends along slot 3 extending direction and arranges, and drive wheel group 20 includes 2 at least drive wheels of being connected with support frame 21, and the support frame 21 top sets up to the rectangular board that extends along slot 3 extending direction to at least 2 lifters 6 of along slot 3 extending direction fixed connection, two lifters 6 support respectively through a backup pad or lead to long backup pad to wait to fix a position prefabricated box culvert 1 bottom surface front and back end nearby, can be more stable be used for supporting prefabricated box culvert 1, avoid taking place the slope.
The driving wheel set 20 includes a wheel driving mechanism, such as a driving motor, for driving the wheels to rotate.
The lifter 6 comprises an electric control lifting rod 22 and a supporting top plate 23 with certain rigidity, wherein a fixing part of the electric control lifting rod 22 is fixed on the supporting frame 21, and the lifting part is fixedly connected with the supporting top plate 23. When a plurality of lifters 6 are provided, the support top plate 23 may be provided for each lifter 6 alone, or a long support top plate 23 provided for a plurality of lifters 6 at the same time may be used.
In some embodiments, the positioning mechanism comprises a first positioner 7 and a second positioner 8 which are oppositely arranged in pairs along two opposite sides between two grooves 3, wherein the first positioner 7 and the second positioner 8 respectively abut against two side surfaces of the prefabricated box culvert 1 to be positioned so as to clamp the position of the prefabricated box culvert to be positioned in the direction vertical to the grooves 3 in a matched manner, and position adjustment positioning operation of the prefabricated box culvert 1 in the transverse direction of the vertical grooves 3 is realized.
Specifically, referring to fig. 5, the first positioner 7 includes a first limit rail 9, a first moving support frame 11, at least one first telescopic link 13, and a side plate 18 having a certain rigidity.
The first limiting track 9 is fixedly arranged between the two grooves 3, deviating from one of the two sides and arranged along the extending direction of the grooves 3, the first limiting track 9 is fixedly arranged on the concrete foundation 2 through fixing bolts 26 such as expansion bolts and the like, and serves as a first positioner 7 to move along the extending direction of the grooves 3 and act on limiting positions in the direction perpendicular to the grooves 3, so that the mounting and the dismounting are convenient, and the efficiency is high.
The first movable supporting frame 11 is movably arranged on the first limiting rail 9 along the extending direction of the groove 3, and is limited and fixed in the direction perpendicular to the groove 3.
The fixed part of the first telescopic rod 13 is fixedly arranged on the first movable supporting frame 11, and the free end of the first telescopic rod 13 is telescopic along the direction perpendicular to the groove 3 and is used for clamping a side plate 18 to be abutted against and connected with the side surface of the box culvert to be positioned.
Specifically, the second positioner 8 includes a second limit rail 10, a second movable support frame 12, at least one second telescopic link 14, and a side plate 18 having a certain rigidity.
The second limiting rail 10 is fixedly arranged between the two grooves 3, opposite to each other, and opposite to the first limiting rail 9 in pairs.
The second movable supporting frame 12 is movably arranged on the second limiting rail 10 along the extending direction of the groove 3, and is limited and fixed in the direction perpendicular to the groove 3.
The second limiting rail 10 is fixedly arranged on the concrete foundation 2 through a fixing bolt 26, such as an expansion bolt, and is used as a guide for the second positioner 8 to move along the extending direction of the groove 3 and is used for limiting the position in the direction perpendicular to the groove 3, so that the second limiting rail is convenient to install and detach and high in efficiency.
The fixed part of the second telescopic rod 14 is fixedly arranged on the second movable supporting frame 12, the free end of the second telescopic rod 14 and the free end of the first telescopic rod 13 are arranged in pairs in opposite directions and can stretch out and draw back along the direction perpendicular to the groove 3, and the fixed part is used for clamping a side plate 18 to be abutted against and connected with the side face of the box culvert to be positioned.
Both the side plates 18 and the supporting plates have certain rigidity and thickness, and certain stress concentration exists when the prefabricated box culvert 1 is supported and clamped, so that the prefabricated box culvert 1 can be prevented from being damaged.
In order to make the overall structure of the positioner stable and reliable, a plurality of vertical rollers 16 and transverse rollers 17 are respectively arranged on the first movable supporting frame 11 and the second movable supporting frame 12 along the extending direction of the groove 3, and a plurality of first telescopic rods 13 and second telescopic rods 14 are arranged at intervals along the extending direction of the groove 3.
In some embodiments, to facilitate a better abutting contact between the free ends of the first telescopic rod 13 and the second telescopic rod 14 and the side of the prefabricated box culvert 1 to be positioned, one side plate 18 is detachably connected at the free ends of the first telescopic rod 13 and the second telescopic rod 14, or the side plate 18 is placed in a pressing manner between the free ends of the first telescopic rod 13/the second telescopic rod 14 and the side of the prefabricated box culvert 1 to be positioned.
In the embodiment of the present invention, the walker 5, the lifter 6, the first telescopic rod 13, the second telescopic rod 14, etc. can be connected with the remote control mechanism 24 in a communication manner, and perform corresponding start-stop operations according to the communication instructions, and various signal instruction transmitters, controllers, electromagnetic valves, etc. in the prior art can be adopted.
In some embodiments, the first limiting rail 9 and the second limiting rail 10 are long strips with an L-shaped cross section, and the first telescopic rod 13 and the second telescopic rod 14 comprise vertical rollers 16 and lateral rollers 17 which are abutted against and rolled on the vertical side surfaces and the lateral bottom surfaces of the corresponding L-shaped long strips along the direction of the groove 3.
In order to ensure that the positions of the first limit rail 9 and the second limit rail 10 are fixed and stable in the using process, two opposite sides of the first limit rail 9 and the second limit rail 10 are respectively provided with a reinforcing angle steel 15. Wherein, the reinforcing angle steel 15 is connected by welding, screw connection, buckling connection and the like.
In some embodiments, in order to make the positioning operation process of the prefabricated box culvert 1 to be positioned more stable, 2 walking support mechanisms are respectively arranged in the two grooves 3 at intervals along the extending direction of the grooves 3, 4 walking support mechanisms respectively support the vicinity of four corners of the bottom of the prefabricated box culvert 1 to be positioned, the 4 walking support mechanisms synchronously and cooperatively operate, and four-point uniform support plays a role in stabilizing.
In some embodiments, 2 first telescopic links 13 and second telescopic links 14 are disposed at intervals in the extending direction of the groove 3 on the first moving support 11 and the second moving support 12, respectively, in the front-back direction. Two telescopic rods on the same side are respectively abutted to the vicinity of the front side end and the rear side end of the prefabricated box culvert 1 to be positioned through side plates 18, 4-point uniform clamping movement is formed in the same plane, synchronous coordination operation is achieved, and left and right position adjustment is stable and reliable.
In addition, 2 first movable supporting frames 11 and 2 second movable supporting frames 12 are respectively arranged on the first limiting rail 9 and the second limiting rail 10 in the front-back mode, and 1 telescopic rod is respectively arranged on each first movable supporting frame 11 and each second movable supporting frame 12, so that 4-point uniform clamping movement is formed in the same plane, synchronous coordination operation is achieved, and left-right position adjustment is stable and reliable.
In some embodiments, as shown in fig. 6, in order to make the structure of the positioning mechanism stable in operation and convenient for lifting and disassembly, an inverted U-shaped connecting frame 25 is fixedly connected between the first moving support frame 11 and the second moving support frame 12 in the vertical direction, and the inverted U-shaped opening space of the connecting frame 25 at least can accommodate the prefabricated box culvert 1 to be positioned, and the connecting frame 25 can enable the first moving support frame 11 and the second moving support frame 12 to form a door arch or inverted U-shaped integral structure, so that the positioning mechanism has a stable and reliable structure when being matched to clamp and remove the prefabricated box culvert 1 to be positioned, and can also facilitate integral lifting and disassembly through the connecting frame 25 when the positioning mechanism is installed and disassembled, thereby being convenient and quick.
When wired communication connection is adopted, the above-mentioned connection frame 25 is also used for fixing and guiding a communication cable for electric signal transmission, thereby electrically connecting the two side positioners.
In order to facilitate the installation and placement of the box culvert 1 to be prefabricated, a yellow sand cushion layer 4 with a certain thickness is paved on the area of the concrete foundation 2 between the two grooves 3.
The embodiment of the invention also provides an operation method based on the accurate spatial positioning system for the prefabricated box culvert, which is specifically described as follows.
Carrying out construction of a prefabricated box culvert 1 component in a factory and a concrete foundation 2 on site, and arranging two grooves 3 which are parallel to each other in the concrete foundation 2 according to construction requirements;
the method comprises the steps that walking lifting mechanisms are arranged in two grooves 3 of a concrete foundation 2 which are parallel to each other, each walking lifting mechanism is adjusted to be at the same horizontal height, and a lifter 6 of the walking lifting mechanism is in an extension state;
a first limit guide rail 19 and a second limit guide rail 19 are fixedly arranged on two opposite sides of the two grooves 3 along the extending direction of the grooves 3, a first movable support frame 11 connected with at least one first telescopic rod 13 and a second movable support frame 12 connected with at least one second telescopic rod 14 are respectively arranged, and the first telescopic rod 13 and the second telescopic rod 14 are in a contracted state;
hanging the prefabricated box culvert 1 to be positioned on a traveling lifting mechanism through lifting equipment, supporting a supporting plate with certain rigidity of a lifter 6 to be connected to the bottom of the prefabricated box culvert 1 to be positioned, and adjusting the height so that a moving gap is reserved between the prefabricated box culvert 1 to be positioned and the top surface of the concrete foundation 2;
the extension of the first telescopic rod 13 and the second telescopic rod 14 is regulated by the remote control mechanism 24, the free ends of the first telescopic rod 13 and the second telescopic rod 14 are respectively pressed against the two sides of the prefabricated box culvert 1 to be positioned by clamping one side plate 18, the walking device 5 of the walking lifting mechanism is controlled by the remote control mechanism 24 to move to a longitudinal preset installation position along the groove 3, and the matched extension and retraction between the first telescopic rod 13 and the second telescopic rod 14 is synchronously controlled by the remote control mechanism 24 so that the prefabricated box culvert 1 to be positioned moves and is regulated to a transverse preset installation position in the direction vertical to the groove 3;
the lifter 6, the first telescopic rod 13 and the second telescopic rod 14 are respectively contracted and separated from the prefabricated box culvert 1 to be positioned through the remote control mechanism 24, the prefabricated box culvert 1 to be positioned is arranged on the yellow sand cushion layer 4 on the concrete foundation 2, and the lifter 6, the first telescopic rod 13 and the second telescopic rod 14 move along the extending direction of the groove 3 to perform automatic accurate positioning operation of the prefabricated box culvert 1 to be positioned at the next section;
repeating the steps to complete the installation of all the segments of the prefabricated box culvert 1 to be positioned;
the walking lifting mechanism and the positioner are sequentially evacuated, and after construction of other procedures of the box culvert sections is completed, the groove 3 is backfilled with concrete;
and (5) completing the whole construction of the prefabricated box culvert.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (5)
1. Accurate space positioning system of prefabricated box culvert, its characterized in that includes:
the concrete foundation is provided with at least one groove;
the walking lifting mechanism can be arranged in the groove in a movable manner along the groove, and a support capable of being adjusted in a lifting manner of the walking lifting mechanism is connected to the bottom of the box culvert to be positioned;
the positioning mechanism is arranged on the concrete foundation in parallel with the groove and can be connected with the box culvert to be positioned and enable the box culvert to be positioned to move in the position perpendicular to the groove;
the remote control mechanism is respectively in communication control connection with the walking lifting mechanism and the positioning mechanism and is used for controlling the start and stop operations of the walking lifting mechanism and the positioning mechanism;
two grooves which are arranged in parallel are formed in the concrete foundation;
the walking lifting mechanism comprises a walking device and a lifter, the walking device moves along the bottom of the groove, the bottom end of the lifter is fixedly arranged on the walking device, and a support with the top end capable of lifting relative to the bottom end is connected to the bottom of a box culvert to be positioned;
the walking device comprises a guide rail fixedly arranged at the bottom of the groove, a driving wheel set moving along the guide rail and a supporting frame arranged on the driving wheel set;
the lifter comprises an electric control lifting rod and a supporting top plate with certain rigidity, a fixing part of the electric control lifting rod is fixed on the supporting frame, and the lifting part is fixedly connected with the supporting top plate;
the positioning mechanism comprises a first positioner and a second positioner which are oppositely arranged in pairs along one side, which is away from each other, between two grooves, and the first positioner and the second positioner respectively abut against two side surfaces of the box culvert to be positioned so as to cooperatively clamp the box culvert to be positioned to move in the direction vertical to the grooves;
the first positioner comprises a first limit rail, a first movable supporting frame, at least one first telescopic rod and a side plate with certain rigidity;
the first limit track is fixedly arranged between the two grooves, away from one of the two sides, and is arranged along the extending direction of the grooves;
the first movable supporting frame is movably arranged on the first limiting rail along the extending direction of the groove and is limited and fixed in the direction perpendicular to the groove;
the fixed part of the first telescopic rod is fixedly arranged on the first movable supporting frame, and the free end of the first telescopic rod is telescopic along the vertical direction of the groove and is used for being abutted against and connected with the side face of the box culvert to be positioned through the side plate.
2. The accurate spatial positioning system of prefabricated box culvert of claim 1 wherein the second positioner includes a second limit rail, a second movable support frame, at least one second telescoping rod and a side plate having a certain rigidity;
the second limit track is fixedly arranged between the two grooves, and one of two opposite sides of the second limit track is opposite to the first limit track in pairs;
the second movable supporting frame is movably arranged on the second limiting rail along the extending direction of the groove and is limited and fixed in the direction perpendicular to the groove;
the fixed part of the second telescopic rod is fixedly arranged on the second movable supporting frame, the free end of the second telescopic rod and the free end of the first telescopic rod are arranged in pairs in opposite directions, and the second telescopic rod is telescopic along the direction perpendicular to the groove, and is used for being in abutting connection with the side face of the box culvert to be positioned through the side plate.
3. The accurate spatial positioning system of prefabricated box culvert of claim 2, wherein the first limiting track and the second limiting track are long strips with L-shaped cross sections, and the first telescopic rod and the second telescopic rod comprise vertical rollers and transverse rollers which are abutted and rolled on the vertical side surfaces and the transverse bottom surfaces of the corresponding L-shaped long strips along the groove direction.
4. The precise spatial positioning system for the prefabricated box culvert of claim 3, wherein the first limiting rail and the second limiting rail are provided with a reinforcing angle steel on the opposite sides.
5. A positioning method based on the accurate spatial positioning system of the prefabricated box culvert of any one of claims 1-4, which is characterized by comprising the following method steps:
performing prefabricated box culvert members in a factory and performing concrete foundation construction on site, and arranging two grooves which are parallel to each other in the concrete foundation according to construction requirements;
the method comprises the steps that walking lifting mechanisms are arranged in two grooves which are parallel to each other of a concrete foundation, each walking lifting mechanism is adjusted to be at the same horizontal height, and lifters of the walking lifting mechanisms are in an extending state;
a first limiting guide rail and a second limiting guide rail are fixedly arranged on two opposite sides of the two grooves along the extending direction of the grooves, a first movable supporting frame connected with at least one first telescopic rod and a second movable supporting frame connected with at least one second telescopic rod are respectively arranged, and the first telescopic rod and the second telescopic rod are in a contracted state;
a yellow sand cushion layer with a certain thickness is paved on the concrete foundation area between the two grooves;
hanging the prefabricated box culvert to be positioned on a traveling lifting mechanism through a lifting device, wherein a supporting plate of a lifter is supported and connected to the bottom of the prefabricated box culvert to be positioned, so that a moving gap is reserved between the prefabricated box culvert to be positioned and the top surface of the concrete foundation;
the first telescopic rod and the second telescopic rod are adjusted to stretch and abut against and are extruded on two sides of the prefabricated box culvert to be positioned through the remote control mechanism, the travelling device of the travelling lifting mechanism is controlled to move to a longitudinal preset installation position along the groove through the remote control mechanism, and the matched expansion and contraction between the first telescopic rod and the second telescopic rod are synchronously controlled through the remote control mechanism so that the prefabricated box culvert to be positioned can move and be adjusted to a transverse preset installation position in the direction perpendicular to the groove;
the lifter, the first telescopic rod and the second telescopic rod are respectively contracted and separated from the prefabricated box culvert to be positioned through the remote control mechanism, the prefabricated box culvert to be positioned is arranged on a yellow sand cushion layer on a concrete foundation, and the lifter, the first telescopic rod and the second telescopic rod move along the extending direction of the groove to perform automatic accurate positioning operation of the prefabricated box culvert to be positioned of the next section;
repeating the steps to complete the installation of all the prefabricated box culvert sections to be positioned;
sequentially evacuating the walking lifting mechanism and the positioner, and backfilling the groove with concrete after the construction of other procedures of the box culvert section is completed;
and (5) completing the whole construction of the prefabricated box culvert.
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| CN202210553640.XA CN114991030B (en) | 2022-05-20 | 2022-05-20 | Accurate space positioning system and method for prefabricated box culvert |
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| CN117468366A (en) * | 2023-12-27 | 2024-01-30 | 中铁六局集团有限公司 | Construction tool capable of automatically hoisting module precast slab and adjusting space precision |
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