CN110735394A - Cable tower structure and construction method thereof - Google Patents
Cable tower structure and construction method thereof Download PDFInfo
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- CN110735394A CN110735394A CN201911047727.4A CN201911047727A CN110735394A CN 110735394 A CN110735394 A CN 110735394A CN 201911047727 A CN201911047727 A CN 201911047727A CN 110735394 A CN110735394 A CN 110735394A
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to the field of bridge engineering foundation structures, and provides cable tower structures and a construction method thereof, wherein each cable tower structure comprises two groups of caisson pile foundation groups, each caisson pile foundation group comprises more than two caisson pile foundations, each caisson pile foundation is provided with a bearing platform, adjacent caisson pile foundations in each caisson pile foundation group are fixedly connected through a tie beam, the cable tower structure further comprises two mutually fixedly connected inverted Y-shaped tower columns, each tower column comprises a plurality of sections of tower column sections which are sequentially spliced, and the lower end of each tower column is fixedly connected with two bearing platforms outside groups of the caisson pile foundations.
Description
Technical Field
The invention relates to the field of bridge engineering foundation structures, in particular to a cable tower structure and a construction method thereof.
Background
The cable tower structure of the bridge supports the beam part structure by means of a cable system to cross marginal traffic obstacles such as water areas, canyons and the like, has the function of transmitting load to a foundation, and is a fundamental source of upper structure rigidity. In cable bridge-supporting beam structure systems such as cable-stayed bridges, suspension bridges and the like, a cable tower is very high, even if horizontal load of a beam structure with a lower action point position is transferred to a higher position on the cable tower under the action of a cable system, and bending moment load borne by the cable tower structure is very large.
In the prior art of bridges, a cable tower structure is constructed by reinforced concrete generally, and a few examples of cable towers constructed by steel structures and steel pipe concrete structures exist.
Since independent foundation supports of the cable tower are supported by the in the prior art, in order to avoid overlarge scale of a foundation structure caused by increasing the forward bridge direction size of the cable tower and avoid cost increase caused by increasing the span length of a bridge caused by excessive encroachment of the foundation structure on the navigation clearance width, the forward bridge direction size of the bridge cable tower structure in the prior art is smaller, and I-shaped structures are mostly adopted.
The smaller construction size and the larger bending moment bearing requirement of the cable tower structure along the bridge direction cause that the cable tower must adopt a larger cross-sectional area, which causes the increase of the self weight of the cable tower and the increase of the manufacturing cost of the cable tower foundation.
When the cable tower structure is applied to a large-span bridge on the sea, the horizontal load borne by the structure is much larger than that borne by the land due to factors such as wind, wave, current, ship collision and the like, and meanwhile, the moment arm length of the horizontal load is increased by steps due to the larger water depth and the higher navigation clearance requirement, so that the bending resistance bearing capacity problem of the cable tower is more troublesome, and the bridge cable tower structure on the deep water area on the sea is extremely difficult to construct.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide cable tower structures and a construction method thereof, which can solve the problems of increase of the dead weight of a cable tower and increase of the construction cost of a cable tower foundation caused by increasing the cross section area along the bridge direction in order to meet the requirement of large bearing capacity of the cable tower structure.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the invention provides cable tower structures, including:
the pile foundation comprises two groups of caisson pile foundation groups, each caisson pile foundation group comprises more than two caisson pile foundations, each caisson pile foundation is provided with a bearing platform, and adjacent caisson pile foundations in each caisson pile foundation group are fixedly connected through a tie beam;
the lower end of each tower column is fixedly connected with the two bearing platforms outside the caisson pile foundation in groups.
On the basis of the technical scheme, each caisson pile foundation comprises:
the caisson is provided with blind column holes, a plurality of foundation pile holes are formed in the blind column holes at intervals in the circumferential direction, and a foundation pile sleeve is arranged in each foundation pile hole;
foundation piles corresponding to the foundation pile sleeves , wherein each foundation pile sleeve is sleeved on the corresponding foundation pile and fixedly connected with the corresponding foundation pile;
the pier column comprises at least pier column sections, and the end of the pier column is arranged in the blind column hole and is fixedly connected with the caisson.
On the basis of the technical scheme, a sleeve shear key is arranged on the inner wall of each foundation pile sleeve, a foundation pile shear key is arranged on the outer wall of each foundation pile, and a bonding agent is arranged between each foundation pile sleeve and each foundation pile.
On the basis of the technical scheme, a packer is arranged on the periphery of the lower portion of each foundation pile sleeve, each packer comprises a clamping piece and circles of steel wires laid below the foundation pile sleeve, the end of each steel wire is fixed on the foundation pile sleeve through the clamping piece, and the end of each steel wire extends to the inner side of the foundation pile sleeve.
On the basis of the technical scheme, a pile feeding sleeve is arranged above each foundation pile sleeve.
On the basis of the technical scheme, the inner space of the caisson is divided into a set number of cabins, and each cabin is provided with a water injection hole.
On the basis of the technical scheme, the tower column segment comprises an inner steel pipe and an outer steel pipe, connecting pieces are arranged on the outer side of the inner steel pipe and the inner side of the outer steel pipe at intervals, and a concrete layer is arranged between the inner steel pipe and the outer steel pipe.
The invention provides a construction method of cable tower structures, which comprises the following steps:
s1, mounting all caisson pile foundations at preset positions to form two caisson pile foundation groups, arranging a bearing platform on each caisson pile foundation, and fixedly connecting the adjacent caisson pile foundations in each caisson pile foundation group through a tie beam;
s2, sequentially mounting tower column segments on the two bearing platforms outside each caisson pile foundation group, and enabling the tower column segments on the two bearing platforms to extend oppositely and then to meet;
s3: and continuously splicing the tower column sections upwards at the intersection of the tower column sections until the inverted Y-shaped tower column is formed.
On the basis of the technical scheme, the installation of every caisson pile foundations comprises the following steps:
enabling the caisson provided with the pier stud sections in the blind stud holes to float on the water surface and be tied and positioned;
injecting water into the caisson to enable the caisson to sink, and lengthening pier column sections till the bottom of the caisson seat;
sequentially inserting and driving foundation piles to a set design elevation through foundation pile sleeves;
and fixedly connecting each foundation pile sleeve with the corresponding foundation pile.
On the basis of the technical scheme, each foundation pile sleeve is fixedly connected with the corresponding foundation pile, and the method comprises the following steps:
injecting a binder with a set height into a gap between the foundation pile sleeve and the corresponding foundation pile;
and after the injected adhesive reaches the set strength, filling the gap with the adhesive until the adhesive is solidified.
Compared with the prior art, the invention has the advantages that the design of the inverted Y-shaped tower column is adopted, the geometrical size of the lower end of the tower column along the bridge direction is large, a larger bending-resistant moment of inertia can be obtained with less material cost, the sectional area required by the bending load along the bridge direction can be reduced, the self weight and the manufacturing cost of the tower column are reduced, the appearance is light, and the longitudinal rigidity is large.
Drawings
FIG. 1 is a schematic front view of a transverse bridge of a cable tower structure according to an embodiment of the present invention;
FIG. 2 is a schematic top cross-sectional view of a cable tower structure according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a tower column segment according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a caisson pile foundation according to an embodiment of the invention;
FIG. 5 is a schematic top view of a caisson pile foundation according to an embodiment of the invention;
FIG. 6 is a schematic top sectional view of a caisson pile foundation according to an embodiment of the invention;
fig. 7 is a schematic partial sectional structure view of a caisson pile foundation in a front view according to an embodiment of the invention.
In the figure: 1. a caisson pile foundation; 11. foundation piles; 111. a foundation pile shear key; 12. caisson; 121. a blind post hole; 122. a foundation pile sleeve; 1221. a sleeve shear key; 1222. a packer; 1223. a binder; 1224. pile feeding sleeve; 123. a foundation pile hole; 13. pier studs; 14. a connecting device; 15. a bearing platform; 16. tying a beam;
2. a tower column; 21. an inner steel tube; 22. an outer steel tube; 23. a concrete layer; 24. a connecting member; 3. and (4) stay cables.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the drawings.
FIG. 1 is a schematic front view of a transverse bridge of a cable tower structure according to an embodiment of the present invention; fig. 2 is a schematic top sectional view of a cable tower structure according to an embodiment of the present invention. As shown in fig. 1 and 2:
cable tower structure comprises two groups of caisson pile foundation groups, each group of caisson pile foundation group comprises more than two caisson pile foundations 1, each caisson pile foundation 1 is provided with a bearing platform 15, and adjacent caisson pile foundations 1 in each group of caisson pile foundation group are fixedly connected through a tie beam 16.
Two fixedly connected tower columns 2 which are in an inverted Y shape, wherein each tower column 2 comprises a plurality of sections of tower column sections which are sequentially spliced, and the lower end of each tower column 2 is fixedly connected with two bearing platforms 15 at the outer side of group caisson pile foundations 1.
When the cable tower structure is used, all caisson pile foundations 1 are arranged at preset positions to form two caisson pile foundation groups, a bearing platform 15 is arranged on each caisson pile foundation 1, and adjacent caisson pile foundations 1 in each caisson pile foundation group of groups are fixedly connected through a tie beam 16, a plurality of sections of tower column sections are sequentially arranged on the two bearing platforms 15 outside each caisson pile foundation group of groups, and the plurality of sections of tower column sections on the two bearing platforms 15 are spliced after extending towards opposite directions.
In this embodiment, each caisson pile foundation group comprises two caisson pile foundations 1. the caisson pile foundation 1 of each caisson pile foundation group is fixedly connected with the two caisson pile foundations 1 of another groups correspondingly through tie beams, and the two sides of the tower column 2 are provided with stay cables 3.
Fig. 4 is a schematic structural view of a caisson pile foundation in an embodiment of the present invention, and fig. 5 is a schematic structural view of a caisson pile foundation in an embodiment of the present invention, as shown in fig. 4 and 5, as seen from a top view: preferably, each caisson pile foundation comprises a caisson 12, a blind column hole 121 is formed in the caisson, a plurality of foundation pile holes 123 are formed in the blind column hole 121 at intervals in the circumferential direction, and a foundation pile sleeve 122 is arranged in each foundation pile hole 123.
When the caisson pile foundation is used, the caisson 12 is floated on the water surface and tied and positioned, and the pier column sections are placed in the blind column holes 121 and fixedly connected with the caisson 12; injecting water into the caisson 12 to enable the caisson to sink, and lengthening pier column sections until the caisson 12 is at the bottom; sequentially inserting and driving the foundation piles 11 to a set design elevation through the foundation pile sleeves 122; each foundation pile sleeve 122 is fixedly connected to its corresponding foundation pile 11. The caisson pile foundation can enable the foundation pile to bear the force of the caisson in the vertical direction, is simple and quick to construct, does not need special mechanical equipment, avoids underwater operation and is low in construction risk.
In this embodiment, a pier stud sleeve can be arranged in the blind stud hole 121, and the foundation pile sleeve 122 is fixedly connected with the pier stud sleeve, so that the caisson and the pier stud are conveniently and fixedly connected. In other embodiments, the bottom surface can be made to match the structure of the river bed or the sea bed according to the structure of the river bed or the sea bed, so that the caisson 12 is simpler to level.
Preferably, each foundation pile sleeve 122 is provided with a sleeve shear key 1221 on the inner wall thereof, each foundation pile 11 is provided with a foundation pile shear key 111 on the outer wall thereof, and a bonding agent 1223 is provided between the foundation pile sleeve 122 and the foundation pile 11.
In the present embodiment, the inner diameter of the foundation pile sleeve 122 is 4 to 400mm larger than the outer diameter of the foundation pile 11, the foundation pile sleeve 122 and the foundation pile 11 are provided with sleeve shear keys 1221 by being provided on the inner wall of the foundation pile sleeve 122 and foundation pile shear keys 111 by being provided on the outer wall of the foundation pile 11, and the additional adhesive 1223 between the foundation pile sleeve 122 and the foundation pile 11 fixedly connects the foundation pile sleeve 122 and the foundation pile 11 at so that the foundation pile 11 can bear the vertical force of the caisson 12, and in construction, the foundation pile 11 can be driven through the foundation pile sleeve 122 after the caisson 12 is sunk to the bottom.
Fig. 7 is a schematic partial sectional view of a caisson pile foundation according to an embodiment of the present invention, and as shown in fig. 7, it is preferable that a packer 1222 is circumferentially provided below each foundation pile sleeve 122, the packer 1222 includes a fastener and a steel wire circles below the foundation pile sleeve 122, an end of the steel wire is fixed to the foundation pile sleeve 122 by the fastener, and another end abuts against the foundation pile 11.
In this embodiment, the length of the steel wire is not less than half of the difference between the inner diameter of the pile sleeve 122 and the outer diameter of the pile, the packer 1222 is used, the pile 11 can smoothly pass through the packer 1222 when the pile 11 is inserted into the pile sleeve 122, the steel wire is tightly adhered to the outer wall of the pile 11, when the pile 11 is driven to a proper position, a small amount of adhesive 1223 is added into the gap between the pile sleeve 122 and the pile 11, after the adhesive 1223 is solidified, the gap between the pile sleeve 122 and the pile 11 is filled with the adhesive 1223, and after the adhesive 1223 is solidified, the pile 11 and the caisson 12 can be fixedly connected to bear the vertical force of the caisson 12.
Preferably, a pile feeding sleeve 1224 is provided above each foundation pile sleeve 122.
In this embodiment, pile feeding sleeve includes the horn mouth, and this horn mouth upper end is located the roof top of caisson 12, and upper end diameter ratio lower extreme diameter is big, and horn mouth lower extreme inner diameter is 4 ~ 400mm bigger than the foundation pile external diameter, and the horn mouth lower extreme passes through the roof foundation pile sleeve 122 upper end of caisson 12 and connects, or is connected with the roof foundation pile hole upper end from the caisson, and this horn mouth axis coincides with caisson roof pile hole axis. Pile feeding sleeves 1224 are provided above each foundation pile sleeve 122 to facilitate the placement of pile sleeve 122 in which foundation pile 11 is inserted into pile sleeve 122 when foundation pile 11 is driven through pile sleeve 122 after caisson 12 is lowered to the bottom.
Preferably, the interior space of the caisson 12 is divided into a set number of compartments, and each compartment is provided with a fill hole. With such a design, when the caisson 12 sinks, the posture of the caisson 12 can be adjusted by adjusting the amount of water injected into the partitioned chambers, so as to prevent the caisson 12 from overturning. In addition, when the caisson 12 is seated, if the angle is not at the set position, the posture of the caisson 12 can be finely adjusted by adjusting the water amount in the partitioned chamber.
FIG. 6 is a schematic top sectional view of a caisson pile foundation according to an embodiment of the invention; as shown in fig. 6, preferably all foundation pile sleeves 122 are fixedly connected to pier stud 13 by means of connecting means 14. In this embodiment, foundation pile sleeve 122 is connected to pier stud 13 via connecting device 14, so that foundation pile sleeve 122 can bear a greater vertical force, and can bear a vertical force of the caisson. In this embodiment, pile sleeve 122 is fixedly connected to pier stud 13 via steel plates to divide caisson 12 into multiple compartments. In other embodiments, foundation pile sleeve 122 and pier stud 13 may also be fixedly connected by a steel truss to provide support.
Fig. 3 is a schematic structural view of a cross section of a tower column segment according to an embodiment of the present invention, and as shown in fig. 3, preferably, the tower column segment includes an inner steel pipe 21 and an outer steel pipe 22, a connecting member 24 is disposed between an outer side of the inner steel pipe 21 and an inner side of the outer steel pipe 22 at an interval, and a concrete layer 23 is disposed between the inner steel pipe 21 and the outer steel pipe 22.
In this embodiment, the tower column is a concrete sandwich double-walled steel pipe column, the connecting member 24 is a shear pin, the shear pin is prefabricated as a connecting member with the inner and outer steel pipes , and the prefabricated steel pipe is used as a formwork for sandwich concrete construction after being hoisted and directly poured with concrete.
Referring again to fig. 1 to 7, the present invention also provides a method of constructing cable tower structures, comprising the steps of:
and S1, mounting all caisson pile foundations 1 at preset positions to form two caisson pile foundation groups, arranging a bearing platform 15 on each caisson pile foundation 1, and fixedly connecting adjacent caisson pile foundations 1 in each caisson pile foundation group through tie beams 16.
Preferably, the installation of every caisson pile foundations 1 comprises the following steps:
the caisson 12 with the pier stud section in the blind stud hole 121 is floated on the water surface and moored for positioning. Injecting water into the caisson 12 to enable the caisson to sink, and lengthening pier column sections until the caisson 12 is at the bottom; sequentially inserting and driving the foundation piles 11 to a set design elevation through the foundation pile sleeves 122; each foundation pile sleeve 122 is fixedly connected to its corresponding foundation pile 11.
When the caisson 12 is prefabricated, the shape of the bottom surface of the caisson 12, which can be fitted with the seabed shape at the preset position, can be preset. This design allows the caisson 12 to be more easily angled when seated. A jack can also be preset at the bottom of the caisson for leveling work after the bottom of the caisson 12 is seated.
Preferably, fixedly connecting each foundation pile sleeve 122 with its corresponding foundation pile 11 comprises the steps of: a binder 1223 of a set height is injected into the gap between the foundation pile sleeve 122 and the corresponding foundation pile 11; after the injected adhesive 1223 reaches a set strength, the gap is filled with the adhesive 1223 until it is solidified.
In other embodiments, densely arranged steel wires can be used to have the th fixed bearing capacity, and when the number of steel wires is large, the surface area is large, and the gaps are small, the adsorption effect of the steel wires on the binder and the blocking effect of the gaps on the aggregate enable the cantilever steel wires to be hardened to realize the packing, so that the foundation pile sleeve 122 and the foundation pile 11 corresponding to the foundation pile sleeve can be fixedly connected through grouting without waiting for the binder to be hardened.
S2, sequentially installing multi-section tower column segments on the two bearing platforms 15 outside each caisson pile foundation group, and splicing the multi-section tower column segments on the two bearing platforms 15 after the multi-section tower column segments extend towards opposite directions;
s3: and continuously splicing the plurality of sections of the tower column sections upwards at the splicing positions of the tower column sections until the inverted Y-shaped tower column 2 is formed.
In summary, when the cable tower structure is used, all caisson pile foundations 1 are installed at preset positions to form two caisson pile foundation groups, a bearing platform 15 is arranged on each caisson pile foundation 1, and adjacent caisson pile foundations 1 in each caisson pile foundation groups are fixedly connected through a tie beam 16, a plurality of sections of tower column sections are sequentially installed on the two bearing platforms 15 outside each caisson pile foundation groups, the plurality of sections of tower column sections on the two bearing platforms 15 are spliced after extending towards opposite directions, the plurality of sections of tower column sections are continuously spliced upwards at the splicing positions of the tower column sections until the inverted-Y-shaped tower column 2 is formed.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone with the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, are within the protection scope.
Claims (10)
- The pylon structure of claim , comprising:the pile foundation structure comprises two groups of caisson pile foundation groups, wherein each caisson pile foundation group comprises more than two caisson pile foundations (1), each caisson pile foundation (1) is provided with a bearing platform (15), and the adjacent caisson pile foundations (1) in each caisson pile foundation group are fixedly connected through tie beams (16);two mutual fixed connection be the pylon (2) of type of falling Y, every pylon (2) includes the pylon segment section that the multisection spliced in proper order, and every the lower extreme of pylon (2) and wherein group two in the caisson pile foundation (1) outside cushion cap (15) fixed connection.
- 2. The cable tower structure of claim 1, wherein each caisson pile foundation (1) comprises:the caisson (12) is provided with a blind column hole (121), a plurality of foundation pile holes (123) are formed in the blind column hole (121) at intervals in the circumferential direction, and a foundation pile sleeve (122) is arranged in each foundation pile hole (123);foundation piles (11) corresponding to the foundation pile sleeves (122) , each foundation pile sleeve (122) being fitted over and fixedly connected to the corresponding foundation pile (11);pier stud (13), it includes a pier stud section at least, the end of pier stud (13) is located in blind column hole (121) and with caisson (12) fixed connection.
- 3. The caisson pile foundation of claim 2, wherein: a sleeve shear key (1221) is arranged on the inner wall of each foundation pile sleeve (122), a foundation pile shear key (111) is arranged on the outer wall of each foundation pile (11), and a binder (1223) is arranged between each foundation pile sleeve (122) and each foundation pile (11).
- 4. A caisson pile foundation according to claim 2, wherein a packer (1222) is provided circumferentially below each of said foundation pile sleeves (122), said packer (1222) comprising a clip and turns of steel wire laid below said foundation pile sleeve (122), said steel wire having end fixed to said foundation pile sleeve (122) by said clip and end extending inside said foundation pile sleeve (122).
- 5. The caisson pile foundation of claim 2, wherein: a pile feeding sleeve (1224) is arranged above each foundation pile sleeve (122).
- 6. The caisson pile foundation of claim 2, wherein: the internal space of the caisson (12) is divided into a set number of cabins, and each cabin is provided with a water injection hole.
- 7. Pylon structure according to claim 1, characterised in that the pylon segments comprise an inner steel tube (21) and an outer steel tube (22), in that connectors (24) are provided spaced apart on the outside of the inner steel tube (21) and on the inside of the outer steel tube (22), and in that a concrete layer (23) is provided between the inner steel tube (21) and the outer steel tube (22).
- Method for building a pylon structure according to claim 1, characterized in that it comprises the following steps:s1, mounting all caisson pile foundations (1) at preset positions to form two caisson pile foundation groups, arranging a bearing platform (15) on each caisson pile foundation (1), and fixedly connecting the adjacent caisson pile foundations (1) in each caisson pile foundation group through tie beams (16);s2, sequentially mounting tower column segments on the two bearing platforms (15) outside each caisson pile foundation group, and enabling the tower column segments on the two bearing platforms (15) to extend oppositely and then to meet;s3: and continuously splicing the tower column sections upwards at the intersection of the tower column sections until an inverted Y-shaped tower column (2) is formed.
- 9. Method of construction of a cable tower structure according to claim 8, characterized in that the installation of every caisson pile foundations (1) comprises the following steps:enabling the caisson (12) provided with the pier stud sections in the blind stud holes (121) to float on the water surface and moor for positioning;injecting water into the caisson (12) to enable the caisson to sink, and lengthening the pier stud section until the caisson (12) is at the bottom;sequentially inserting and driving foundation piles (11) to a set design elevation through foundation pile sleeves (122);fixedly connecting each foundation pile sleeve (122) with the corresponding foundation pile (11).
- 10. Method for building a pylon structure according to claim 9, characterized in that fixedly connecting each said foundation pile sleeve (122) to the corresponding said foundation pile (11) comprises the following steps:injecting a binder (1223) of a set height into a gap between a foundation pile sleeve (122) and a corresponding foundation pile (11);after the injected adhesive (1223) reaches a set strength, the gap is filled with the adhesive (1223) until the adhesive is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911047727.4A CN110735394B (en) | 2019-10-30 | 2019-10-30 | Cable tower structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911047727.4A CN110735394B (en) | 2019-10-30 | 2019-10-30 | Cable tower structure and construction method thereof |
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| CN110735394A true CN110735394A (en) | 2020-01-31 |
| CN110735394B CN110735394B (en) | 2021-08-10 |
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| CN201911047727.4A Active CN110735394B (en) | 2019-10-30 | 2019-10-30 | Cable tower structure and construction method thereof |
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| CN112609704A (en) * | 2020-12-07 | 2021-04-06 | 浙江大东吴集团建设有限公司 | Construction pile based on SMW construction method and construction method thereof |
| CN113550224A (en) * | 2021-08-09 | 2021-10-26 | 山东省交通规划设计院集团有限公司 | Double-main-hole single-tower self-anchored suspension bridge structural system and construction process |
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| CN209162824U (en) * | 2018-10-26 | 2019-07-26 | 中铁第四勘察设计院集团有限公司 | The more well foundations of major diameter steel reinforced concrete combinatorial cylinders distributing |
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| CN113550224A (en) * | 2021-08-09 | 2021-10-26 | 山东省交通规划设计院集团有限公司 | Double-main-hole single-tower self-anchored suspension bridge structural system and construction process |
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|---|---|
| CN110735394B (en) | 2021-08-10 |
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