CN211571807U - Bearing platform replacement construction device for high-speed rail station canopy column - Google Patents
Bearing platform replacement construction device for high-speed rail station canopy column Download PDFInfo
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- CN211571807U CN211571807U CN201921778497.4U CN201921778497U CN211571807U CN 211571807 U CN211571807 U CN 211571807U CN 201921778497 U CN201921778497 U CN 201921778497U CN 211571807 U CN211571807 U CN 211571807U
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Abstract
The utility model provides a construction equipment is changed to cushion cap for high-speed railway station canopy post, include and be used for underpinning roof beam (4) with the cushion cap hookup of canopy post, the setting is and set up to left hole digging pile (1) with underpinning roof beam (4) hookup in the ground of canopy post, the setting is and be used for carrying out the side support device that supports to the cushion cap of canopy post in the ground of canopy post, through side support device, realized carrying out temporary support to the cushion cap of canopy post, through underpinning roof beam (4) and left hole digging pile (1), the fixed support again of cushion cap to the canopy post has been realized, consequently, realized changing the cushion cap of high-speed railway station canopy post, guarantee the stability of high-speed railway station canopy.
Description
Technical Field
The utility model relates to a construction equipment is changed to cushion cap, especially a construction equipment is changed to cushion cap that is used for high-speed railway station canopy post.
Background
The rain shed for the high-speed rail station is used for shielding rainwater and sunlight on the station, and the passenger tunnel is used for a building in an underpass mode and is the most common structural form in large-scale rail transit. The station weather shed column is often spatially influenced with the relative position of the underground structure. In order to ensure the safety of the construction of the passenger subway, the stressed structure of the influenced canopy column needs to be changed before the construction of the passenger subway, so the bearing platform replacing construction device for the canopy column of the high-speed rail station is an important civil engineering device.
The technical scheme of the invention is made based on the technical problems, technical features and technical effects in the technical background of the applicant.
Disclosure of Invention
The object of the utility model is to a cushion cap change construction equipment that is used for high-speed railway station canopy post.
In order to overcome the technical defect, the utility model aims at providing a cushion cap change construction equipment for high-speed railway station canopy post has consequently realized changing the cushion cap of high-speed railway station canopy post, guarantees the stability of high-speed railway station canopy.
In order to achieve the purpose, the utility model adopts the technical proposal that: include be arranged in the foundation of canopy post and set up to the left dug hole stake, the side support device that sets up in the foundation of canopy post and be used for supporting the cushion cap of canopy post with the underpinning roof beam of the cushion cap hookup of canopy post, set up.
Due to the fact that the underpinning beam, the left hole digging pile and the side support device are designed, the bearing platform of the canopy column is temporarily supported through the side support device, the bearing platform of the canopy column is fixedly supported again through the underpinning beam and the left hole digging pile, the bearing platform of the canopy column in the high-speed rail station is replaced, and the stability of the canopy in the high-speed rail station is guaranteed.
The utility model discloses a, according to implant the mode of supporting the ground again and connect underpinning roof beam, left side dug hole stake and side support device each other.
The utility model discloses a, according to the mode of unilateral support ground the underpinning roof beam and left dug hole stake and side support device hookup.
The utility model discloses a, wherein, side support device sets up to including right hole digging pile and a supporting beam.
The utility model discloses a, still include the first annex device that has the telescoping cylinder and first annex device sets up between underpinning roof beam and left hole digging pile.
The utility model discloses a, still include the second annex device that has foundation ditch, concrete retaining plate and concrete cushion and the second annex device sets up on the cushion cap of canopy post.
The utility model discloses a, side portion at the cushion cap of canopy post is provided with left hole digging pile and right hole digging pile respectively, be provided with a supporting beam and be provided with the underpinning roof beam on the cushion cap of canopy post between the cushion cap of canopy post and right hole digging pile, underpin roof beam and left hole digging pile between be provided with the telescoping cylinder and be provided with the foundation ditch between left hole digging pile and right hole digging pile, peripheral side portion at the foundation ditch is provided with concrete retaining plate and is provided with the concrete cushion at the bottom end face portion of foundation ditch.
The utility model discloses a, a left side dug hole stake sets up to including a left side dug hole stake of first left side and a second left side dug hole stake and a left side dug hole stake of first left side sets up the front-back portion at the left surface of the cushion cap of canopy post respectively with a second left side dug hole stake, the upper end terminal surface portion of a left side dug hole stake of first left side and a left side dug hole stake of second upper end terminal surface portion are provided with the telescoping cylinder respectively and a left side dug hole stake of first left side and a second left side dug hole stake set up to and underpin the bayonet hookup of roof beam, a left side dug hole stake of first left side and a left side dug hole stake set up respectively to the ground implanted hookup with the canopy post, a left side dug hole stake of first left side and.
The utility model discloses a, right side digging hole stake sets up to including first right side digging hole stake and second right side digging hole stake and first right side digging hole stake and second right side digging hole stake set up respectively in the front-back portion of the right flank of the cushion cap of canopy post, the upper end terminal surface portion of first right side digging hole stake and the upper end terminal surface portion of second right side digging hole stake are provided with a supporting beam respectively and first right side digging hole stake and second right side digging hole stake set up respectively into the ground implanted hookup with the canopy post, first right side digging hole stake and second right side digging hole stake set up respectively into T font pile beam.
The utility model discloses a, a supporting beam sets up to including a first supporting beam and a second supporting beam and one of them end of a first supporting beam and a second supporting beam set up respectively to coupleing with right hole digging pile, wherein another end of a first supporting beam and a second supporting beam wherein another end set up respectively to coupleing with the cushion cap flange portion of canopy post and a first supporting beam and a second supporting beam set up respectively in the spacious oral area of foundation ditch, a first supporting beam and a second supporting beam set up respectively to the rectangular rod body.
The utility model discloses a, the underpinning roof beam sets up to the T font and the vertical portion of underpinning roof beam sets up to the joining of sinking with left hole digging pile, and the lower extreme terminal surface portion of the horizontal portion of underpinning roof beam sets up to the joining of extending cylinder and the horizontal portion of underpinning roof beam sets up to the joining of bearing platform flange portion with the canopy post.
The utility model discloses a, one of them end of telescoping cylinder sets up to and underpins the roof beam hookup and wherein another end of telescoping cylinder sets up to and left hole digging pile hookup, and the telescoping cylinder sets up to two section formula telescoping cylinders and the telescoping cylinder sets up to arrange along the bight of the upper end terminal surface of left hole digging pile and distributes.
The utility model discloses a, the foundation ditch sets up to trapezoidal hole body and the left side face of foundation ditch sets up to be exposed formula distribution with the cushion cap basis post portion of canopy post, and the peripheral side portion of foundation ditch sets up to keep off the breast board hookup with the concrete and the bottom end face of foundation ditch sets up to be with the concrete cushion, the open portion of foundation ditch set up to with the horizontal cross hookup of a supporting beam.
The utility model discloses a, the concrete keeps off native board and sets up to the embedded hookup in peripheral side portion with the foundation ditch for the rectangular sheet body and the concrete keeps off native board.
The utility model discloses a, the concrete cushion sets up to the laminarization body of concrete and the concrete cushion sets up to the bottom end face covering hookup with the foundation ditch.
The utility model discloses a, right side digging hole stake and a supporting beam and left digging hole stake and underpinning roof beam set up to distribute according to the mode that the side supported and right side digging hole stake, a supporting beam, left side digging hole stake and underpinning roof beam and telescoping cylinder set up to distribute according to the mode of adjusting position, right side digging hole stake, a supporting beam, left side digging hole stake and underpinning roof beam and foundation ditch, concrete retaining plate and concrete cushion set up to distribute according to the mode of demolising the space and wherein four telescoping cylinders set up on first left side digging hole stake, wherein four other telescoping cylinders set up on the digging hole stake on the left side of the second, first supporting beam sets up between first left side digging hole stake and first right side digging hole stake, the setting of second supporting beam is between second left side digging hole stake and second right side digging hole stake.
The technical effects of the utility model reside in that: in order to realize the conversion of a stress system, four jacks respectively adopt 4KW electric oil pumps as power output, every two oil pumps are provided with an operator, two operators are matched to finish the conversion of the stress system, one oil pump is provided with 2 valve blocks and can respectively carry out power transmission on a 100t hydraulic jack and a 100t self-locking jack, wherein the 100t self-locking jack adopts single-loop transmission, the 100t hydraulic jack adopts double-loop transmission, when the hydraulic jack is arranged at a design position in advance, the hydraulic jack is empty to the design height, a gap between a jacking front underpinning beam and a pile foundation is temporarily reinforced by a temporary support erected by brick plus square wood, the temporary support is taken as a safety protection measure and is always acted on the stress system to be removed after the conversion is finished, when jacking, a control valve block of the 100t hydraulic jack is firstly opened, and the four 100t hydraulic jacks are used for synchronously transmitting power, and a 100t mechanical self-locking jack is used for opening the control valve block immediately after the mechanical self-locking jack is used for transmitting power. According to the design requirement, jacking needs hierarchical jacking, divide into eight levels with the jacking step according to jacking force:
jack every level jacking value meter (oil meter reading)
| Serial number of jacks | 30% | 50% | 70% | 80% | 85% | 90% | 95% | 100% |
| 1# | 5 | 8 | 12 | 13 | 14 | 15 | 16 | 17 |
| 2# | 15 | 24 | 34 | 39 | 42 | 44 | 46 | 49 |
| 3# | 9 | 15 | 21 | 25 | 26 | 28 | 30 | 31 |
| 4# | 18 | 31 | 44 | 50 | 53 | 56 | 58 | 60 |
After eight-stage jacking is completed, jacking force is loaded to 100% of a design force value, four 100t mechanical self-locking jacks are synchronously and tightly screwed to the current jacking position, a valve block is closed, power transmission is stopped, and after the step is completed, the self-locking devices of the 100t mechanical self-locking jacks are manually screwed down, wherein in the process of stage jacking, after each stage of jacking is completed, interval time is needed before next stage of jacking is carried out, and a jacked object is made to adapt to the current stress condition. According to different values of force applied by each stage, before the jacking force is loaded to 80%, the interval time of each stage is determined to be 3min, when the jacking force is 80% -100%, the interval time of each stage is 10-15min, in the process of stage jacking, the checking needs to be carried out according to measured settlement observation data and design requirements in real time so as to prevent problems in the jacking process, and the pressure is applied to the underpinning cross beam by utilizing the embedded self-locking hydraulic jack so as to expect to achieve the settlement of the pile foundation in the shortest time and the bearing of the upper structure (the underpinning cross beam and the canopy column). Meanwhile, after the jack is stressed, namely stress conversion is considered to be completed, the original foundation can be broken and disassembled, so that the efficiency of supporting and replacing construction of a passenger tunnel and a canopy column is improved, secondly, due to the design of the self-locking hydraulic jack, the situation that the jack falls back due to other reasons in the jacking process of the jack can be prevented, the supporting strength and the stability are enhanced, thirdly, due to the design of a step jacking stress application mode, the adverse conditions that the jack is damaged due to overlarge once stress application and the like are avoided, and before the connection section is poured, four 100t hydraulic jacks are required to be disassembled. In order to ensure the construction quality of the connecting section, a PVC pipe straight-through connecting section with the diameter of 25cm is pre-embedded in the underpinning beam construction engineering and serves as a connecting section concrete pouring channel, the connecting section concrete is poured by fine stone concrete to ensure that the pouring is compact, the underpinning pile is fixedly connected with the underpinning beam to complete active underpinning, the existing canopy column foundation is dismantled while the connecting section is constructed, the dismantling is carried out in a rope saw cutting mode, the process has small disturbance on the existing canopy column, and the influence of the foundation dismantling on the canopy column is reduced.
In this technical scheme, left side digging pile and underpinning roof beam are basic unit, also the utility model discloses a necessary technical feature, right side digging pile, a supporting beam, telescoping cylinder, foundation ditch, concrete fender apron and concrete cushion are functional unit, are the realization the utility model discloses a characteristic of other technological effects, the design of these technical features of first left side digging pile, the left side digging pile of second, the first right side digging pile, the right side digging pile of second, first supporting beam and the second supporting beam is accord with the patent law and implements the technical feature of rule.
In the technical scheme, the underpinning beam for supporting the foundation, the left digging pile and the side support device are implanted again to be important technical characteristics, and the technical field of the bearing platform replacement construction device for the canopy column of the high-speed rail station has novelty, creativity and practicability, and the terms in the technical scheme can be explained and understood by patent documents in the technical field.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Figure 1 is a schematic view of the present invention,
figure 2 is a right side view of figure 1,
figure 3 is a top view of figure 1,
the concrete foundation pit supporting structure comprises a left hole digging pile-1, a right hole digging pile-2, a supporting beam-3, a underpinning beam-4, a telescopic cylinder-5, a foundation pit-6, a concrete retaining plate-7, a concrete cushion-8, a first left hole digging pile-11, a second left hole digging pile-12, a first right hole digging pile-21, a second right hole digging pile-22, a first supporting beam-31 and a second supporting beam-32.
Detailed Description
Terms such as "having," "including," and "comprising," as used herein with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and unless otherwise specified, the equipment and materials used in the following examples are commercially available, and if the processing conditions are not specified, please refer to the purchased product specification or follow the conventional method in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is the utility model discloses a first embodiment, combine the figure concrete description embodiment, include left side digging hole stake 1, right side digging hole stake 2, a supporting beam 3, underpin roof beam 4, the telescoping cylinder 5, foundation ditch 6, concrete retaining plate 7 and concrete cushion 8 and be provided with left side digging hole stake 1 and right side digging hole stake 2 respectively in the side portion of the cushion cap of canopy post, be provided with a supporting beam 3 between the cushion cap of canopy post and right side digging hole stake 2 and be provided with underpin roof beam 4 on the cushion cap of canopy post, be provided with telescoping cylinder 5 between underpin roof beam 4 and left side digging hole stake 1 and be provided with foundation ditch 6 between left side digging hole stake 1 and right digging hole stake 2, be provided with concrete retaining plate 7 and be provided with concrete cushion 8 in the bottom end face portion of foundation ditch 6 in the peripheral side portion of foundation ditch 6.
In this embodiment, the left bored pile 1 is configured to include a first left bored pile 11 and a second left bored pile 12 and the first left bored pile 11 and the second left bored pile 12 are respectively disposed at the front and rear portions of the left side surface of the platform of the rainshed pillar, the upper end surface portion of the first left bored pile 11 and the upper end surface portion of the second left bored pile 12 are respectively provided with the telescoping cylinders 5 and the first left bored pile 11 and the second left bored pile 12 are configured to be insertedly coupled with the underpinning beam 4, the first left bored pile 11 and the second left bored pile 12 are respectively configured to be implanted-coupled with the foundation of the rainshed pillar, and the first left bored pile 11 and the second left bored pile 12 are respectively configured to be T-shaped pile beams.
Through a left side dug hole stake 1, formed the support tie point to underpinning roof beam 4 and telescoping cylinder 5, by a left side dug hole stake 11 of first left side and a left side dug hole stake 12 of second, realized being connected with underpinning roof beam 4, realized being connected with telescoping cylinder 5, its technical aim at: the bearing platform is used as a changed canopy column.
In this embodiment, right bored pile 2 sets up to include first right bored pile 21 and second right bored pile 22 and first right bored pile 21 and second right bored pile 22 set up respectively in the front and back portion of the right flank of the cushion cap of canopy post, the upper end surface portion of first right bored pile 21 and the upper end surface portion of second right bored pile 22 are provided with respectively supporting beam 3 and first right bored pile 21 and second right bored pile 22 set up respectively to be connected with the ground implantation of canopy post, first right bored pile 21 and second right bored pile 22 set up respectively to T font pile beam.
Through right side dug hole stake 2, formed the support connection point to a supporting beam 3, by first right side dug hole stake 21 and second right side dug hole stake 22, realized being connected with a supporting beam 3, its technical aim at: for serving as a support carrier for supporting the beams 3.
In the present embodiment, the support beam 3 is configured to include a first support beam 31 and a second support beam 32, and one end of the first support beam 31 and one end of the second support beam 32 are respectively configured to be coupled to the right bored pile 2, the other end of the first support beam 31 and the other end of the second support beam 32 are respectively configured to be coupled to a platform flange portion of the rainshed column, and the first support beam 31 and the second support beam 32 are respectively configured to be disposed at an opening portion of the foundation pit 6, and the first support beam 31 and the second support beam 32 are respectively configured to be rectangular rod-shaped bodies.
Through a supporting beam 3, formed the support tie point to right hole digging pile 2 and foundation ditch 6, by first supporting beam 31 and second supporting beam 32, realized being connected with right hole digging pile 2, realized being connected with foundation ditch 6, its technical aim at: a support carrier for a bearing platform of the rainshed column.
In this embodiment, the underpinning beam 4 is provided in a T-shape and the vertical portion of the underpinning beam 4 is provided to be coupled with the left bored pile 1 in a sunk manner, the lower end surface portion of the lateral portion of the underpinning beam 4 is provided to be coupled with the telescoping cylinder 5 and the lateral portion of the underpinning beam 4 is provided to be coupled with the cap flange portion of the rainshed column.
Through underpinning roof beam 4, formed the support tie point to left dug pile 1 and telescoping cylinder 5, by underpinning roof beam 4, realized with left dug pile 1 be connected, realized with telescoping cylinder 5 be connected, its technical aim at: a support carrier for a bearing platform of the rainshed column.
In the present embodiment, one end of the telescopic cylinder 5 is provided to be coupled to the underpinning beam 4 and the other end of the telescopic cylinder 5 is provided to be coupled to the left bored pile 1, the telescopic cylinder 5 is provided as a two-stage telescopic cylinder and the telescopic cylinders 5 are provided to be arranged along a corner of the upper end face of the left bored pile 1.
Through telescoping cylinder 5, formed the support tie point to left dug pile 1 and underpinning roof beam 4, by telescoping cylinder 5, realized with left dug pile 1 be connected, realized with underpinning roof beam 4 be connected, its technical aim at: for adjusting the position of the underpinning beam 4.
In this embodiment, foundation pit 6 is set up to trapezoidal pit body and the left side face of foundation pit 6 sets up to be naked distribution with the cushion cap foundation pillar portion of canopy post, and the peripheral side face of foundation pit 6 sets up to be linked with concrete retaining plate 7 and the bottom end terminal surface of foundation pit 6 sets up to be linked with concrete cushion 8, and the open portion of foundation pit 6 sets up to be linked with supporting beam 3 cross formula.
Through foundation ditch 6, formed the support tie point to a supporting beam 3, concrete retaining plate 7 and concrete cushion 8, by foundation ditch 6, realized being connected with a supporting beam 3, realized keeping off being connected of soil plate 7 with the concrete, realized being connected with concrete cushion 8, its technical aim at: the space body is used for dismantling a bearing platform foundation column part serving as a rainshed column.
In the present embodiment, the concrete retaining plate 7 is provided as a rectangular sheet-like body and the concrete retaining plate 7 is provided to be in embedded coupling with the peripheral side face of the foundation pit 6.
Through concrete retaining plate 7, formed the support tie point to foundation ditch 6, kept off soil plate 7 by concrete, realized being connected with foundation ditch 6, its technical aim at: for protecting the foundation pit 6.
In the present exemplary embodiment, the concrete pad 8 is provided as a concrete layer and the concrete pad 8 is provided in a covering connection with the bottom end face of the foundation pit 6.
Through concrete cushion 8, formed the support tie point to foundation ditch 6, by concrete cushion 8, realized being connected with foundation ditch 6, its technical aim at: for protecting the foundation pit 6.
In the present embodiment, the right bored pile 2 and the supporting beam 3 and the left bored pile 1 and the underpinning beam 4 are arranged to be distributed in a side supported manner and the right bored pile 2, the supporting beam 3, the left bored pile 1 and the underpinning beam 4 and the telescoping cylinders 5 are arranged to be distributed in an adjusted position manner, the right bored pile 2, the supporting beam 3, the left bored pile 1 and the underpinning beam 4 and the foundation pit 6, the concrete retaining plate 7 and the concrete pad 8 are arranged to be distributed in a demolished space manner and wherein four telescoping cylinders 5 are arranged on the first left bored pile 11, wherein the other four telescoping cylinders 5 are arranged on the second left bored pile 12, the first supporting beam 31 is arranged between the first left bored pile 11 and the first right bored pile 21, and the second supporting beam 32 is arranged between the second left bored pile 12 and the second right bored pile 22.
Driving a first left bored pile 11 and a second left bored pile 12 into the ground of a rainshed column before and after the left side surface of a bearing platform of the rainshed column, driving a first right bored pile 21 and a second right bored pile 22 into the ground of the rainshed column before and after the right side surface of the bearing platform of the rainshed column, mounting one end of a first support beam 31 to the first right bored pile 21, mounting one end of a second support beam 32 to the second left bored pile 12, disposing the other end of the first support beam 31 and the other end of the second support beam 32 to be connected to a flange portion of the bearing platform of the rainshed column, connecting a underpinning beam 4 to a flange portion of the bearing platform of the rainshed column, mounting four of the cylinders 5 between the first left bored pile 11 and the underpinning beam 4, mounting the other four of the cylinders 5 between the second left bored pile 12 and the underpinning beam 4, and fixing the bearing platform of the rainshed column, excavation foundation pit 6 is carried out at supporting beam 3 lower extreme, make the cushion cap basis post portion of canopy post expose outside, install concrete retaining plate 7 in the periphery of foundation pit 6, prevent that foundation pit 6 from collapsing, lay concrete cushion 8 in the bottom surface of foundation pit 6, the installation of the equipment of demolising of the cushion cap basis post portion of canopy post is conveniently kept off, operating personnel demolishs the cushion cap basis post portion of canopy post, after dismantling the cushion cap basis post portion of canopy post and finishing, take out concrete retaining plate 7, backfill foundation pit 6, through telescopic cylinder 5, adjust the position of underpinning roof beam 4, install underpinning roof beam 4 and respectively with first left hole digging pile 11 and second left hole digging pile 12, fix again the cushion cap flange portion of canopy post, demolish telescopic cylinder 5 and supporting beam 3.
The specific method comprises the following steps:
firstly, underpinning pile construction, foundation pit protecting piles are used as underpinning piles of a canopy foundation, two foundation pits are respectively arranged on the north and south sides of each passenger tunnel, the sizes of the foundation pits are 290 cm and 250 cm, the protecting piles are constructed by adopting a manual hole digging pile process,
secondly, the construction of the inner supporting device is characterized in that: each pile top is provided with 4 100t jacks, wherein 2 jacks are hydraulic jacks, the other two jacks are hydraulic jacks with mechanical self-locking safety devices, the jacking distance of each jack is 200mm, and the top of each jack is provided with a steel plate of 40 multiplied by 1cm as a stress surface. 2 hydraulic jacks are arranged on the side far away from the rain shed column foundation; 2 mechanical safety self-locking devices are arranged on the side close to the base of the rain shed column,
and thirdly, underpinning the cross beam, wherein the underpinned cross beam is used as a new stress system of the existing canopy column and needs to be solidified with the foundation of the existing canopy column. The rain shed column foundation is provided with a tongue-and-groove in the range of the joist, the other joint surfaces are subjected to scabbling treatment and bar planting construction,
and fourthly, performing graded jacking construction, jacking the joist in a graded manner, monitoring the relative slippage of the top of the bearing platform and the beam-column joint under each grade of load, and stopping jacking when the settlement of the underpinned pile is stable and the vertical displacement of the pier top is less than 10mm relative to the original elevation or the jacking force reaches a designed value of 110%. The new pile is made to bear load amount after underpinning and complete most of settlement deformation in short time through the stepped jacking, and the load change of the underpinned beam and column joints is tested to ensure the safe state,
in order to realize the conversion of a stress system, four jacks respectively adopt 4KW electric oil pumps as power output, every two oil pumps are provided with an operator, two operators are matched to finish the conversion of the stress system, one oil pump is provided with 2 valve blocks and can respectively carry out power transmission on a 100t hydraulic jack and a 100t self-locking jack, wherein the 100t self-locking jack adopts single-loop transmission, the 100t hydraulic jack adopts double-loop transmission, when the hydraulic jack is arranged at a design position in advance, the hydraulic jack is empty to the design height, a gap between a jacking front underpinning beam and a pile foundation is temporarily reinforced by a temporary support erected by brick plus square wood, the temporary support is taken as a safety protection measure and is always acted on the stress system to be removed after the conversion is finished, when jacking, a control valve block of the 100t hydraulic jack is firstly opened, and the four 100t hydraulic jacks are used for synchronously transmitting power, and a 100t mechanical self-locking jack is used for opening the control valve block immediately after the mechanical self-locking jack is used for transmitting power. According to the design requirement, jacking needs hierarchical jacking, divide into eight levels with the jacking step according to jacking force:
jack every level jacking value meter (oil meter reading)
| Serial number of jacks | 30% | 50% | 70% | 80% | 85% | 90% | 95% | 100% |
| 1# | 5 | 8 | 12 | 13 | 14 | 15 | 16 | 17 |
| 2# | 15 | 24 | 34 | 39 | 42 | 44 | 46 | 49 |
| 3# | 9 | 15 | 21 | 25 | 26 | 28 | 30 | 31 |
| 4# | 18 | 31 | 44 | 50 | 53 | 56 | 58 | 60 |
After eight-stage jacking is completed, jacking force is loaded to 100% of a design force value, four 100t mechanical self-locking jacks are synchronously and tightly screwed to the current jacking position, a valve block is closed, power transmission is stopped, and after the step is completed, the self-locking devices of the 100t mechanical self-locking jacks are manually screwed down, wherein in the process of stage jacking, after each stage of jacking is completed, interval time is needed before next stage of jacking is carried out, and a jacked object is made to adapt to the current stress condition. According to different values of force applied by each stage, before the jacking force is loaded to 80%, the interval time of each stage is set to be 3min, when the jacking force is 80% -100%, the interval time of each stage is 10-15min, in the process of stage jacking, the settlement observation data measured in real time needs to be checked with the design requirements to prevent problems in the process of jacking,
and fifthly, pouring the connecting sections, wherein the four 100t hydraulic jacks are required to be disassembled before pouring the connecting sections. And adopting fine stone concrete pouring to ensure that the pouring is compact, solidifying the underpinning pile and the underpinning beam, completing active underpinning, and dismantling the existing canopy column foundation while constructing the connecting section.
The second embodiment of the present invention is to connect the underpinning beam 4, the left bored pile 1 and the side support device to each other in such a manner as to re-implant the supporting foundation.
In this embodiment the underpinning beam 4 and the left bored pile 1 are coupled to the side bracket arrangement in such a way that the foundation is supported on one side.
In the present embodiment, among other things, the side frame arrangement is arranged to comprise a right bored pile 2 and a support beam 3.
In this embodiment, a first attachment device with a telescopic cylinder 5 is also included and arranged between the underpinning beam 4 and the left bored pile 1.
In this embodiment, a second attachment device having a foundation pit 6, a concrete retaining plate 7 and a concrete pad 8 is also included and is provided on the platform of the rain shed column.
A second embodiment of the present invention is based on the first embodiment,
the utility model has the characteristics of down:
1. due to the fact that the underpinning beam 4, the left hole digging pile 1 and the side support device are designed, the bearing platform of the canopy column is temporarily supported through the side support device, the bearing platform of the canopy column is fixedly supported again through the underpinning beam 4 and the left hole digging pile 1, the bearing platform of the canopy column of the high-speed rail station is replaced, and the stability of the canopy of the high-speed rail station is guaranteed.
2. Due to the design of the right digging pile 2 and the supporting beam 3, the fixed support of the bearing platform of the rain shed column is realized.
3. Due to the design of the telescopic cylinder 5, the position adjustment of the underpinning beam 4 is realized.
4. Due to the design of the foundation pit 6, the concrete retaining plate 7 and the concrete cushion layer 8, the bearing platform foundation column part of the rain shed column is dismantled.
5. Owing to designed the utility model discloses a technical characteristic, in technical characteristic's the effect alone and mutual set, through experimental demonstration, the utility model discloses an each item performance index is 1.7 times at least for current each item performance index, has fine market value through the aassessment.
Still other features associated with the re-implantation of the underpinning beam 4 supporting the foundation, the left bored pile 1 and the side support means are all embodiments of the present invention, and the features of the above described embodiments may be combined in any combination, and all possible combinations of the features of the above described embodiments will not be described again in order to meet the requirements of the patent laws, patent practice rules and examination guidelines.
Consequently in the cushion cap change construction equipment technical field who is used for high-speed railway station canopy post, all include be used for with the foundation of canopy post underpin roof beam 4, set up and set up to 1, the setting in the foundation of canopy post and be used for carrying out the side support device who supports to the cushion cap of canopy post technical content all is in with the left hole digging pile 1 of underpin roof post, the setting with the hookup of underpin roof beam 4 the protection scope of the utility model.
Claims (10)
1. The utility model provides a cushion cap changes construction equipment for high-speed railway station canopy post, characterized by: include and be used for underpinning roof beam (4) with the cushion cap hookup of canopy post, set up in the ground of canopy post and set up as left dug hole stake (1) with underpinning roof beam (4) hookup, set up in the ground of canopy post and be used for carrying out the side support device that supports to the cushion cap of canopy post.
2. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 1, wherein: the underpinning beam (4), the left dug pile (1) and the side support device are mutually connected in a mode of re-implanting the supporting foundation.
3. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 2, wherein: the underpinning beam (4) and the left dug pile (1) are connected with the side support device in a mode of supporting the foundation by a single side.
4. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 1, wherein: wherein the side support device is arranged to comprise a right digging pile (2) and a supporting beam (3),
or, a first attachment device with a telescopic cylinder (5) is included and arranged between the underpinning beam (4) and the left bored pile (1),
or the rain shed further comprises a second accessory device with a foundation pit (6), a concrete retaining plate (7) and a concrete cushion (8), and the second accessory device is arranged on a bearing platform of the rain shed column.
5. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 4, wherein: the side face of a bearing platform of the rainshed column is provided with a left hole digging pile (1) and a right hole digging pile (2) respectively, a supporting beam (3) is arranged between the bearing platform of the rainshed column and the right hole digging pile (2), a underpinning beam (4) is arranged on the bearing platform of the rainshed column, a telescopic cylinder (5) is arranged between the underpinning beam (4) and the left hole digging pile (1), a foundation pit (6) is arranged between the left hole digging pile (1) and the right hole digging pile (2), a concrete retaining plate (7) is arranged on the peripheral side face of the foundation pit (6), and a concrete cushion (8) is arranged on the bottom end face of the foundation pit (6).
6. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 5, wherein: pile (1) of digging a hole on a left side sets up to include pile (11) of digging a hole on a left side of first left side and pile (12) of digging a hole on a left side of second and pile (11) of digging a hole on a left side of first left side and pile (12) of digging a hole on a left side of second set up respectively at the front and back portion of the left side of the cushion cap of canopy post, the upper end terminal surface portion of pile (11) of digging a hole on a left side of first left side and the upper end terminal surface portion of pile (12) of digging a hole on a left side of second are provided with telescoping cylinder (5) respectively and pile (11) of digging a hole on a left side and pile (12) of digging a hole on a left side of first left side set up respectively to the ground implantation hookup with the canopy post, pile (11) of digging a hole on a left side and pile (12) of digging a hole on a left side of second set up respectively to T font pile roof beam.
7. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 5, wherein: the underpinning beam (4) is T-shaped, the vertical part of the underpinning beam (4) is connected with the left dug pile (1) in a sinking mode, the lower end face part of the transverse part of the underpinning beam (4) is connected with the telescopic cylinder (5), and the transverse part of the underpinning beam (4) is connected with the bearing platform flange part of the rainshed column.
8. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 5, wherein: the right hole digging pile (2) is arranged to comprise a first right hole digging pile (21) and a second right hole digging pile (22), the first right hole digging pile (21) and the second right hole digging pile (22) are respectively arranged at the front and back parts of the right side surface of a bearing platform of the rain shed column, the upper end surface part of the first right hole digging pile (21) and the upper end surface part of the second right hole digging pile (22) are respectively provided with a supporting beam (3), the first right hole digging pile (21) and the second right hole digging pile (22) are respectively arranged to be connected with a foundation of the rain shed column in an implanted manner, the first right hole digging pile (21) and the second right hole digging pile (22) are respectively arranged to be T-shaped pile beams,
or, supporting beam (3) set up to include first supporting beam (31) and second supporting beam (32) and one of them end of first supporting beam (31) and one of them end of second supporting beam (32) set up respectively to be linked up with right hole digging pile (2), wherein another one of them end of first supporting beam (31) and one of them end of second supporting beam (32) set up respectively to be linked up and first supporting beam (31) and second supporting beam (32) set up respectively in the open mouth portion of foundation ditch (6) with the cushion cap flange portion hookup of canopy post, first supporting beam (31) and second supporting beam (32) set up respectively to rectangular rod shape body.
9. The bearing platform replacing construction device for the rainshed column of the high-speed rail station as claimed in claim 5, wherein: one end of the telescopic cylinder (5) is connected with the underpinning beam (4) and the other end of the telescopic cylinder (5) is connected with the left hole digging pile (1), the telescopic cylinder (5) is a two-section type telescopic cylinder and the telescopic cylinder (5) is distributed along the corner of the upper end surface of the left hole digging pile (1),
or the foundation pit (6) is a trapezoid pit body, the left side surface of the foundation pit (6) is arranged to be in exposed distribution with the bearing platform foundation column part of the rain shed column, the peripheral side surface of the foundation pit (6) is arranged to be connected with the concrete retaining plate (7), the bottom end surface of the foundation pit (6) is arranged to be connected with the concrete cushion (8), the open part of the foundation pit (6) is arranged to be in cross-type connection with the supporting beam (3),
or the concrete retaining plate (7) is arranged into a rectangular sheet-shaped body and the concrete retaining plate (7) is arranged to be embedded and connected with the peripheral side surface of the foundation pit (6),
or the concrete cushion layer (8) is arranged to be a layered body of concrete and the concrete cushion layer (8) is arranged to be in covering connection with the bottom end surface of the foundation pit (6).
10. The bearing platform replacement construction device for the rainshed column of the high-speed rail station as claimed in any one of claims 1 to 9, wherein: the right digging pile (2), the supporting beam (3), the left digging pile (1) and the underpinning beam (4) are arranged to be distributed according to a side supporting mode, the right digging pile (2), the supporting beam (3), the left digging pile (1), the underpinning beam (4) and the telescopic cylinders (5) are arranged to be distributed according to a position adjusting mode, the right digging pile (2), the supporting beam (3), the left digging pile (1), the underpinning beam (4), the foundation pit (6), the concrete retaining plate (7) and the concrete cushion (8) are arranged to be distributed according to a space removing mode, and the four telescopic cylinders (5) are arranged on the first left digging pile (11), wherein the other four telescopic cylinders (5) are arranged on the second left hole digging pile (12), the first supporting beam (31) is arranged between the first left hole digging pile (11) and the first right hole digging pile (21), and the second supporting beam (32) is arranged between the second left hole digging pile (12) and the second right hole digging pile (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921778497.4U CN211571807U (en) | 2019-10-22 | 2019-10-22 | Bearing platform replacement construction device for high-speed rail station canopy column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921778497.4U CN211571807U (en) | 2019-10-22 | 2019-10-22 | Bearing platform replacement construction device for high-speed rail station canopy column |
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| CN211571807U true CN211571807U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921778497.4U Active CN211571807U (en) | 2019-10-22 | 2019-10-22 | Bearing platform replacement construction device for high-speed rail station canopy column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725349A (en) * | 2019-10-22 | 2020-01-24 | 中铁十局集团第八工程有限公司 | Bearing platform replacement construction device and method for canopy column of high-speed rail station |
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2019
- 2019-10-22 CN CN201921778497.4U patent/CN211571807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725349A (en) * | 2019-10-22 | 2020-01-24 | 中铁十局集团第八工程有限公司 | Bearing platform replacement construction device and method for canopy column of high-speed rail station |
| CN110725349B (en) * | 2019-10-22 | 2023-11-21 | 中铁十局集团第八工程有限公司 | Bearing platform replacement construction device and method for high-speed rail station canopy column |
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