CN113605263A - Old bridge dismantling method - Google Patents
Old bridge dismantling method Download PDFInfo
- Publication number
- CN113605263A CN113605263A CN202111044741.6A CN202111044741A CN113605263A CN 113605263 A CN113605263 A CN 113605263A CN 202111044741 A CN202111044741 A CN 202111044741A CN 113605263 A CN113605263 A CN 113605263A
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- Prior art keywords
- bridge
- pipeline
- working surface
- group
- beam bodies
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
Abstract
The invention relates to an old bridge dismantling method, which comprises the following steps: protecting the pipeline; carrying out construction operation on the bridge body outside the pipeline influence range to form a working surface; carrying out grouping cutting on the beam body to be dismantled; and translating each group of beam bodies after cutting to a working surface respectively, and hoisting the beam bodies out for outward transportation. Translating each group of beam bodies which are cut to the working surface respectively comprises: lower layer sliding blocks are arranged on the inner sides of the support base cushion stones at the two ends of the beam body; arranging a jack on the lower layer slide block, placing the jack below each group of cut beam bodies, jacking the corresponding beam body to a preset height, and placing an upper layer slide block on the lower layer slide block; dismantling the jack to place the beam body on the upper layer slide block; so that the upper layer slide block drives the beam body to translate on the lower layer slide block to the working surface. The invention firstly protects the pipeline on the bridge and then translates the cut beam body to the working surface, thereby reducing the influence on the pipeline in the bridge dismantling process, ensuring the safety of the pipeline and accelerating the construction progress.
Description
Technical Field
The invention relates to the technical field of old bridge dismantling, in particular to an old bridge dismantling method.
Background
With the continuous development of urban construction, some early-built urban road bridges are usually required to be dismantled, but the urban road bridges are usually in various complex pipeline environments, so that a plurality of property units are involved, and the relocation difficulty is high. How to ensure that the bridge is convenient and smooth to dismantle is a difficult problem to reduce or avoid the influence on the pipeline.
Disclosure of Invention
The invention aims to solve the technical problem of providing an old bridge dismantling method aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows: an old bridge dismantling method comprises the following steps:
protecting the pipeline;
carrying out construction operation on the beam body outside the pipeline influence range to form a working surface;
carrying out grouping cutting on the beam body to be dismantled;
and translating each single-group beam body after cutting to a working surface respectively, and hoisting the beam body out for outward transportation.
The invention has the beneficial effects that: according to the old bridge dismantling method, the pipeline on the bridge is protected, the working surface is manufactured for carrying the cut beam bodies, and the cut beam bodies are translated to the working surface, so that the influence on the pipeline in the bridge dismantling process can be reduced, the safety of the pipeline is ensured, and the construction progress is accelerated.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, translating each single-group beam body after cutting to a working surface respectively comprises:
a lower layer slide block is arranged on the inner sides of the support base cushion stones at the two ends of the single group of beam bodies;
arranging a jack on the lower layer sliding block, placing the jack below the cut single group of beam bodies, jacking the corresponding single group of beam bodies to a preset height, and then placing the upper layer sliding block on the lower layer sliding block;
dismantling the jack to place the single group of beam bodies on the upper layer of slide block;
the upper layer slide block drives the single group of beam bodies to translate on the lower layer slide block to the working surface.
The beneficial effect of adopting the further scheme is that: the support base cushion stone can provide a space for installation of the lower-layer sliding block, but the lower-layer sliding block is not in contact with the beam body, a space for installing a jack is reserved, the beam body is jacked to a certain height by the aid of the jack on the lower-layer sliding block, then the upper-layer sliding block is installed, and single-group beam bodies on the upper-layer sliding block are orderly and stably translated to a working face by means of relative sliding between the upper-layer sliding block and the lower-layer sliding block.
Furthermore, the lower-layer sliding blocks are arranged along the direction perpendicular to the beam bodies, and the upper-layer sliding blocks are multiple and are respectively and correspondingly arranged below the single group of beam bodies.
The beneficial effect of adopting the further scheme is that: the lower-layer sliding blocks are arranged to be of a long strip-shaped structure, the upper-layer sliding blocks are arranged on the lower-layer sliding blocks, effective and stable support can be carried out on the single-group beam body, and the single-group beam body can be translated to the working face by means of relative movement between the upper-layer sliding blocks and the lower-layer sliding blocks.
Furthermore, in the single group of beam bodies, two ends below each beam body are respectively provided with a jack.
The beneficial effect of adopting the further scheme is that: the single group of beams can be uniformly and stably jacked, and the positions of the upper-layer sliding blocks are uniformly distributed.
Further, translating each single-group beam body after cutting to a working surface respectively further comprises:
and binding two ends of the single group of beam bodies which are cut in groups respectively by adopting a first steel wire rope, then connecting the first steel wire rope to a traction device, and translating the cut single group of beam bodies to a working surface by the traction device.
The beneficial effect of adopting the further scheme is that: the traction device can be used for quickly and stably translating the single-group beam body to the working surface along the lower-layer slide block.
Furthermore, the traction device is also connected with a second steel wire rope, and the second steel wire rope is connected to the ground anchor or wound on a bridge pile below the working face.
The beneficial effect of adopting the further scheme is that: connect the second wire rope on the reaction point, the setting of reaction point can be through the mode setting of walking around rear bridge pile under the working face with wire rope, also can be through the mode setting of beating at the working face rear and establishing the earth anchor, is favorable to going on in order of traction process stably.
Further, the traction device comprises an electric hoist.
Further, the step of cutting the beam body to be dismantled in groups comprises the following steps: and (3) beginning to drill rope distance rope threading holes at the two ends of the hinge joint at a first preset distance from the end part of the beam body by using a water drill, then removing the expansion joints at the two ends of the bridge, and cutting at least two beam bodies at intervals of the beam body to be removed by using the rope distance along the hinge joint drilled with the rope distance rope threading holes.
The beneficial effect of adopting the further scheme is that: the beam bodies are conveniently and rapidly cut and grouped.
Further, the protection line comprises: piling sand bags around the pipeline under the bridge for protection; for the pipeline on the bridge, concrete buttresses are arranged at two ends of the bridge, then a suspension beam is arranged on the concrete buttresses, and the pipeline on the bridge is suspended and protected by arranging a third steel wire rope on the suspension beam.
The beneficial effect of adopting the further scheme is that: according to the position relation between the pipeline and the bridge, the pipeline can be an upper bridge pipeline and a lower bridge pipeline respectively, the upper bridge pipeline is laid on the bridge floor, and the pipeline loses support after the bridge is dismantled, so that damage can occur; the pipeline under the bridge is positioned below the bridge, and fragments can fall to threaten the pipeline in the bridge dismantling process. Through carrying out the sand bag protection to the pipeline under the bridge, avoid the fragment that drops to produce the pipeline and destroy, through hanging in midair the protection to the pipeline on the bridge, avoid the pipeline to lose the support and be destroyed.
Further, the hoisting out of the shipment comprises: and respectively drilling threading holes at the positions of the single group of beam bodies, which are away from the third preset distance at the two ends of the single group of beam bodies, and threading and fixing a fourth steel wire rope in the threading holes at the two ends of the single group of beam bodies, hoisting the cut single group of beam bodies out of the transport vehicle by adopting a crane, and transporting the cut single group of beam bodies to an off-site designated place outside the transport vehicle.
Drawings
FIG. 1 is a schematic diagram of the present invention for separately protecting an overbridge pipeline and an underbridge pipeline;
FIG. 2 is a schematic top view of a single unit of a beam body using a traction device to perform traction translation according to the present invention;
FIG. 3 is a first schematic structural view of a single group of beams being pulled and translated by a pulling device according to the present invention;
FIG. 4 is a schematic structural diagram of a second front view of the single-unit beam body performing traction translation by using the traction device according to the present invention;
fig. 5 is a schematic diagram of the cutting process of the bridge beam body according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a beam body; 11. a single set of beam bodies; 12. an on-bridge pipeline; 13. an underbridge line; 14. concrete buttress; 15. a suspension beam; 16. a third wire rope; 17. a support base cushion stone; 18. cutting a line; 110. bridge piles; 111. a capping beam; 112. a sand bag; 113. rope distance rope threading holes;
2. a lower layer slide block; 21. an upper layer slider; 22. a jack; 23. a traction device; 24. a first wire rope; 25. a second wire rope; 26. and (7) anchoring the ground.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the old bridge demolishing method of this embodiment includes the following steps:
protecting the pipeline;
carrying out construction operation on the beam body 1 outside the pipeline influence range to form a working surface;
carrying out grouping cutting on the beam body to be dismantled; cutting is carried out according to a cutting line 18 marked with a circle in figure 5;
and translating each single-group beam body 11 after cutting to a working surface respectively, and hoisting the beam body out for outward transportation.
The beam body 1 is arranged on the cover beam 111, and the working face is prepared to provide a translation space for the beam body within the influence range of the pipeline, so that the working face is positioned outside the influence range of the pipeline; the beam body outside the influence range of the pipeline can be hoisted or crushed by 3-4 pieces in situ by a conventional method, so that the working surface is formed.
As shown in fig. 2 to 4, a preferred embodiment of the present invention is that translating the cut single-group beams 11 to the working surface respectively includes:
the lower-layer slide block 2 is arranged on the inner sides of the support cushion stones 17 at the two ends of the single-group beam body 11;
arranging a jack 22 on the lower-layer sliding block 2, placing the jack 22 below the cut single-group beam body 11, jacking the corresponding single-group beam body 11 to a preset height, and then placing an upper-layer sliding block 21 on the lower-layer sliding block 2;
the jack 22 is removed, and the single group of beam bodies 11 are placed on the upper layer slide block 21;
so that the upper layer slide block 21 drives the single group of beam bodies 11 to translate on the lower layer slide block 2 to the working surface.
The support base cushion 17 can provide a space for installing the lower-layer sliding block 2, but the lower-layer sliding block 2 is not in contact with the beam body, a space for installing a jack 22 is reserved, the beam body is jacked to a certain height by the aid of the jack 22 on the lower-layer sliding block 2, then the upper-layer sliding block 21 is installed, and single-group beam bodies 11 on the upper-layer sliding block 21 are orderly and stably translated to a working surface by means of relative sliding between the upper sliding block and the lower sliding block. The upper sliding block can be installed after the beam body is jacked for 3-8 cm by using a jack, the section size of the upper sliding block can be square, the length of the upper sliding block can be cut according to the existing practical situation, the upper sliding block generally adopts a shorter sliding block, the length of the contact surface of the upper sliding block and the lower sliding block is not less than 2-3 m, the length of the specific contact surface can be not less than 2.4m, and the relative sliding is stable and orderly.
As shown in fig. 2 to 4, the lower sliders 2 are arranged in a direction perpendicular to the beam body 1, and the upper sliders 21 are plural and respectively disposed below the single group of beam bodies 11. The lower-layer sliding blocks are arranged to be of a long strip-shaped structure, the upper-layer sliding blocks are arranged on the lower-layer sliding blocks, effective and stable support can be carried out on the single-group beam body, and the single-group beam body can be translated to the working face by means of relative movement between the upper-layer sliding blocks and the lower-layer sliding blocks.
As shown in fig. 2 to 4, in the single-group beam 11, jacks 22 are respectively provided at both ends of the lower portion of each beam. The single group of beams can be uniformly and stably jacked, and the positions of the upper-layer sliding blocks are uniformly distributed. For more stable jacking, the jack 22 below each beam body can be placed at the central line position of the beam body; in order to ensure that the jacks 22 can be synchronously jacked, the jacks 22 below each group of beam bodies can be connected in parallel for use.
As shown in fig. 2 to 4, translating each single-group beam 1111 that has been cut to the working surface further includes: the two ends of the single group of beam bodies 11 which are cut in groups are respectively bound by adopting a first steel wire rope 24, then the first steel wire rope 24 is connected to a traction device 23, and the single group of beam bodies 11 which are cut in groups are translated to a working surface through the traction device 23. The traction device can be used for quickly and stably translating the single-group beam body to the working surface along the lower-layer slide block. Specifically, a plurality of grouped and cut beam bodies can be bound together at the positions 4-6 m away from the two ends of the single group of beam bodies 11 through rope penetrating holes by using first steel wire ropes 24, and then the first steel wire ropes 24 are hung on a traction device through hooks.
As shown in fig. 2 to 4, the traction device is further connected with a second steel cable 25, and the second steel cable 25 is connected to an earth anchor 26 or wound on a bridge pile 110 below the working surface. Connect the second wire rope on the reaction point, the setting of reaction point can be through the mode setting of walking around rear bridge pile under the working face with wire rope, also can be through the mode setting of beating at the working face rear and establishing the earth anchor, is favorable to going on in order of traction process stably. When the traction device is used for translation, the two ends of the beam body are required to synchronously, uniformly and slowly draw the beam body to move forwards, balance is kept, and a group of multi-beam bodies are translated to a working surface outside a pipeline range.
As shown in fig. 2 to 4, the traction device 23 includes an electric hoist. The jack can be a flat hydraulic jack.
As shown in fig. 5, the step of cutting the beam bodies to be removed in groups comprises the following steps: and (3) beginning to drill a rope distance rope threading hole 113 at a first preset distance from the two ends of the hinge joint to the end part of the beam body by using a water drill, then removing the expansion joints at the two ends of the bridge 1, and cutting at least two beam bodies at intervals of the beam body to be removed by using the rope distance along the hinge joint drilled with the rope distance rope threading hole 113, so that the beam bodies are conveniently and quickly cut and grouped. For example, fig. 2 to 4 of the present embodiment show schematic views of cutting every third beam body. The first preset distance can be 50 cm-100 cm, and the second preset distance can be 4-10 m.
As shown in fig. 1, the protection line includes: for the underbridge pipeline 13, the sandbags 112 are piled up around the pipeline for protection, and after the sandbags 112 are piled up, the distance between the outermost sides of the sandbags 112 and the outer side wall of the underbridge pipeline 13 can be not less than 50 cm; for the on-bridge pipeline 12, concrete buttresses 14 are arranged at two ends of a bridge 1, then suspension beams 15 are arranged on the concrete buttresses 14, third steel wire ropes 16 are arranged on the suspension beams 15 to suspend and protect the on-bridge pipeline 12, the height of the concrete buttresses 14 and the length of the third steel wire ropes 16 are determined according to actual field conditions, the suspension beams 15 can be in a Bailey beam or I-steel composite beam form, the type of the suspension beams 15 and the specification and the distance of the third steel wire ropes 16 need to be calculated and determined according to bridge span, material performance, pipeline weight and other information, the shearing force and the bending moment borne by the suspension beams are required to be within the self-allowable range, the deflection does not exceed L/400(L is the suspension beam span), and the tensile force borne by the steel wire ropes does not exceed the self-minimum breaking force. According to the position relation between the pipeline and the bridge, the pipeline can be an upper bridge pipeline and a lower bridge pipeline respectively, the upper bridge pipeline is laid on the bridge floor, and the pipeline loses support after the bridge is dismantled, so that damage can occur; the pipeline under the bridge is positioned below the bridge, and fragments can fall to threaten the pipeline in the bridge dismantling process. Through carrying out the sand bag protection to the pipeline under the bridge, avoid the fragment that drops to produce the pipeline and destroy, through hanging in midair the protection to the pipeline on the bridge, avoid the pipeline to lose the support and be destroyed.
In this embodiment, the hoisting out and transporting includes: and respectively drilling threading holes at the positions of the single group of beam bodies 11, which are away from the two ends by a third preset distance, and threading and fixing a fourth steel wire rope in the threading holes at the two ends of the single group of beam bodies 11, hoisting the cut single group of beam bodies 11 out of the transport vehicle by adopting a crane, and transporting the cut single group of beam bodies 11 to an off-site appointed place outside the transport vehicle.
According to the old bridge dismantling method, the pipelines on the bridge are protected firstly, then the working face is manufactured to be used for bearing each group of the cut beam bodies, and then the cut beam bodies are translated to the working face, so that the influence on the peripheral pipelines in the bridge dismantling process can be reduced, the safety of the pipelines is ensured, the construction progress is accelerated, and the translation device is convenient to mount and dismount, low in cost and high in safety.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An old bridge dismantling method is characterized by comprising the following steps:
protecting the pipeline;
carrying out construction operation on the beam body outside the pipeline influence range to form a working surface;
carrying out grouping cutting on the beam body to be dismantled;
and translating each single-group beam body after cutting to a working surface respectively, and hoisting the beam body out for outward transportation.
2. The old bridge demolition method according to claim 1, wherein translating the cut single-group girder bodies onto a working surface respectively comprises:
a lower layer slide block is arranged on the inner sides of the support base cushion stones at the two ends of the single group of beam bodies;
arranging a jack on the lower layer sliding block, placing the jack below the cut single group of beam bodies, jacking the corresponding single group of beam bodies to a preset height, and then placing the upper layer sliding block on the lower layer sliding block;
dismantling the jack to place the single group of beam bodies on the upper layer of slide block;
the upper layer slide block drives the single group of beam bodies to translate on the lower layer slide block to the working surface.
3. The old bridge demolishing method according to claim 2, wherein the lower layer of sliding blocks are arranged in a direction perpendicular to the beam bodies, and the upper layer of sliding blocks are plural and respectively correspondingly disposed below a single group of beam bodies.
4. The method for dismantling the old bridge as claimed in claim 2, wherein the single group of girders are provided with jacks at both ends below the respective girders.
5. The old bridge demolition method according to any one of claims 1 to 4, wherein translating each cut single-group girder body to a working surface further comprises:
and binding two ends of the single group of beam bodies which are cut in groups respectively by adopting a first steel wire rope, then connecting the first steel wire rope to a traction device, and translating the cut single group of beam bodies to a working surface by the traction device.
6. A method for dismantling an old bridge as claimed in claim 5, wherein a second wire rope is connected to the traction means and connected to an earth anchor or a bridge pile wound under the working surface.
7. A method according to claim 5, wherein the towing means comprises an electric block.
8. The old bridge demolition method according to any one of claims 1 to 4, 6 to 7, wherein the group cutting of the beam body to be demolished comprises: and (3) beginning to drill rope distance rope threading holes at the two ends of the hinge joint at a first preset distance from the end part of the beam body by using a water drill, then removing the expansion joints at the two ends of the bridge, and cutting at least two beam bodies at intervals of the beam body to be removed by using the rope distance along the hinge joint drilled with the rope distance rope threading holes.
9. The method for demolishing an old bridge according to any one of claims 1 to 4 and 6 to 7, wherein the protection pipeline comprises: piling sand bags around the pipeline under the bridge for protection; for the pipeline on the bridge, concrete buttresses are arranged at two ends of the bridge, then a suspension beam is arranged on the concrete buttresses, and the pipeline on the bridge is suspended and protected by arranging a third steel wire rope on the suspension beam.
10. A method of demolishing an old bridge according to any one of claims 1 to 4 and 6 to 7, wherein the hoisting out of the ship includes: and respectively drilling threading holes at the positions of the single group of beam bodies, which are away from the third preset distance at the two ends of the single group of beam bodies, and threading and fixing a fourth steel wire rope in the threading holes at the two ends of the single group of beam bodies, hoisting the cut single group of beam bodies out of the transport vehicle by adopting a crane, and transporting the cut single group of beam bodies to an off-site designated place outside the transport vehicle.
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| CN202111044741.6A CN113605263B (en) | 2021-09-07 | 2021-09-07 | Old bridge dismantling method |
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| CN202111044741.6A CN113605263B (en) | 2021-09-07 | 2021-09-07 | Old bridge dismantling method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071652A (en) * | 2010-12-28 | 2011-05-25 | 武汉二航路桥特种工程有限责任公司 | Method and device for dragging large-tonnage object ashore |
| KR101095449B1 (en) * | 2011-09-19 | 2011-12-16 | 주식회사성수프론티어 | Bridge deck dismembering method and its equipment |
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| CN113123258A (en) * | 2021-05-14 | 2021-07-16 | 哈尔滨昊宸建研科技有限公司 | Method for dismantling old bridge of river-crossing concrete box girder |
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2021
- 2021-09-07 CN CN202111044741.6A patent/CN113605263B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071652A (en) * | 2010-12-28 | 2011-05-25 | 武汉二航路桥特种工程有限责任公司 | Method and device for dragging large-tonnage object ashore |
| KR101095449B1 (en) * | 2011-09-19 | 2011-12-16 | 주식회사성수프론티어 | Bridge deck dismembering method and its equipment |
| CN207525641U (en) * | 2017-08-16 | 2018-06-22 | 贾喆 | A kind of movable type airport taxiway bridging toughening protective device |
| CN113123258A (en) * | 2021-05-14 | 2021-07-16 | 哈尔滨昊宸建研科技有限公司 | Method for dismantling old bridge of river-crossing concrete box girder |
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| 贾布裕等: "流溪河大桥主桥拆除施工技术", 《桥梁建设》 * |
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