CN216043718U - Stereoscopic crossing tunnel structure for power system - Google Patents

Stereoscopic crossing tunnel structure for power system Download PDF

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Publication number
CN216043718U
CN216043718U CN202122601391.0U CN202122601391U CN216043718U CN 216043718 U CN216043718 U CN 216043718U CN 202122601391 U CN202122601391 U CN 202122601391U CN 216043718 U CN216043718 U CN 216043718U
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tunnel
structural
piles
reinforcing
pile
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吴春刚
安宝强
陈倩
李海山
赵铭
辛梦璐
曹文暖
王茹
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State Grid Corp of China SGCC
Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd
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State Grid Corp of China SGCC
Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Abstract

The utility model provides a three-dimensional crossing tunnel structure for an electric power system, which belongs to the technical field of tunnel construction and comprises the following steps: the tunnel structure comprises an upper layer tunnel, a lower layer tunnel, a plurality of first structural piles and a plurality of reinforcing blocks. And a lining structural plate is arranged at the bottom of the upper layer tunnel. The lower tunnel is located the below of upper tunnel, and lower floor's tunnel is the contained angle setting with the upper tunnel. The top ends of the first structural piles are fixed on the lining structural plate, and the bottom ends of the first structural piles extend downwards; a plurality of first structural piles are distributed on both sides of the lower layer tunnel. A plurality of bosses and a plurality of first structural pile one-to-one, the boss is connected between lower floor's tunnel and corresponding first structural pile, and the boss is used for making structural pile and lower floor's tunnel become a body structure. The first structural pile and the reinforcing block are used in the power system three-dimensional crossing tunnel structure, so that the stability of the position between the upper layer tunnel and the lower layer tunnel is ensured, the safety is improved, and accidents are prevented.

Description

Stereoscopic crossing tunnel structure for power system
Technical Field
The utility model belongs to the technical field of tunnel construction, and particularly relates to a three-dimensional crossing tunnel structure for an electric power system.
Background
With the rapid development of tunnel construction in China, more and more three-dimensional cross tunnels, namely, tunnels which are parallel, obliquely crossed and vertically crossed in space, are developed, and the situation that earth surface buildings are penetrated under the three-dimensional cross tunnels due to problems of line selection, policy and the like exists. The construction of passing the existing building under the vertical crossing tunnel has strict requirements on settlement control, and the construction of the upper tunnel and the lower tunnel can generate great disturbance to surrounding rocks, so that the settlement and the deviation of the surface building are influenced, and certain potential safety hazards are brought. If the treatment is not good, the ground building is settled and cracked, the upper tunnel is settled and deformed, and the damage of the ground building and the upper tunnel causes great economic loss. How to reduce the influence of the construction of the lower tunnel on the upper tunnel and the ground surface building is the key for ensuring the construction safety of the lower-passing building of the vertical crossing tunnel, and is also the problem which needs to be solved urgently at present.
At present, the upper tunnel and the lower tunnel are at different heights, so that the whole tunnel has weak capability of bearing transverse and longitudinal loads and low safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a three-dimensional crossing tunnel structure for a power system, and aims to solve the problems that an upper tunnel and a lower tunnel are poor in transverse and longitudinal load bearing capacity and low in safety.
In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a power system grade separation tunnel structure, including:
the bottom of the upper layer tunnel is provided with a lining structural plate;
the lower layer tunnel is positioned below the upper layer tunnel, and the lower layer tunnel and the upper layer tunnel form an included angle;
a plurality of first structural piles, the top ends of which are fixed on the lining structural plate and the bottom ends of which extend downwards; the first structural piles are distributed on two sides of the lower-layer tunnel;
the reinforcing blocks are in one-to-one correspondence with the first structural piles, connected between the lower-layer tunnel and the corresponding first structural piles and used for enabling the structural piles and the lower-layer tunnel to be of an integrated structure.
In a possible implementation mode, the lower-layer tunnel comprises a plurality of duct pieces which are sequentially arranged, the reinforcing blocks are connected between every two adjacent duct pieces, structural ribs are arranged in the reinforcing blocks, and the structural ribs are fixed with the two adjacent duct pieces.
In one possible implementation, the bottom end of the first structural pile extends through the reinforcing block and below the lower tunnel; the structural bars extend into the first structural pile and are fixed with the reinforcing bars in the first structural pile.
In a possible implementation manner, a plurality of the reinforcing blocks are distributed on two sides of the lower-layer tunnel oppositely.
In a possible implementation manner, a plurality of second structural piles are fixed on the lower layer tunnel, and the second structural piles penetrate through the reinforcing blocks.
In one possible implementation, the first structural pile is arranged vertically and the second structural pile is arranged horizontally.
In a possible implementation manner, the first structural pile and the second structural pile are respectively a first anchor rod and a second anchor rod, the first anchor rod and the second anchor rod are internally provided with a first positioning rib and a second positioning rib respectively, and the structural ribs are fixed with the first positioning rib and the second positioning rib respectively.
In a possible implementation manner, a reinforcing frame is arranged on the outer side of the reinforcing block, and the first structural pile and the second structural pile both penetrate through the reinforcing frame; the reinforcing frame is close to the open setting in one side of lower floor's tunnel, the reinforcing frame intussuseption is filled with and is used for forming the concrete of boss.
In a possible implementation mode, the reinforcing frame comprises a plurality of reinforcing plates, the reinforcing plates are sequentially arranged and are welded and fixed to form the reinforcing frame, and the reinforcing plates are provided with yielding holes for yielding the first structural piles and the second structural piles.
In a possible implementation manner, the bottom of the lower-layer tunnel is provided with a plurality of third structural piles, the third structural piles are vertically arranged, and the third structural piles are arranged along the length direction of the lower-layer tunnel at intervals.
The utility model provides a stereoscopic crossing tunnel structure for an electric power system, which has the advantages that: compared with the prior art, the lining structure plate is arranged at the bottom of the upper layer tunnel in the electric power system three-dimensional crossing tunnel structure, the lower layer tunnel is arranged below the upper layer tunnel, and the upper layer tunnel and the lower layer tunnel form an included angle. A plurality of first structural pile top are fixed on lining cutting structural slab, and the bottom extends downwards. The reinforcing blocks are connected between the lower tunnels and the respective first structural piles.
First, the plurality of first structural piles improve the stability of the upper tunnel by being connected with the lining structural plate. Each reinforcing block corresponds to one first structural pile, and a relatively stable integral structure is kept between the first structural pile and the lower-layer tunnel by means of the reinforcing blocks. In this application, guaranteed the stability of position between upper tunnel and the lower floor's tunnel through first structure stake and boss, improved the security, the emergence of prevention accident.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electricity system grade separation tunnel structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electricity system overpass tunnel structure according to a second embodiment of the present invention;
fig. 3 is a schematic diagram of connection between a lower tunnel and a third structural pile according to a third embodiment of the present invention.
In the figure: 1. an upper layer tunnel; 2. a lower tunnel; 3. lining the structural slab; 4. a first structural pile; 5. a reinforcing block; 6. a second anchor rod; 7. a second positioning rib; 8. a reinforcing frame; 9. and (5) a third structural pile.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 to fig. 3, the three-dimensional crossing tunnel structure for the power system according to the present invention will now be described. A fly-over tunnel structure for a power system, comprising: an upper layer tunnel 1, a lower layer tunnel 2, a plurality of first structural piles 4 and a plurality of reinforcing blocks 5. The bottom of the upper layer tunnel 1 is provided with a lining structural plate 3. The lower layer tunnel 2 is located the below of upper tunnel 1, and lower layer tunnel 2 is the contained angle setting with upper tunnel 1. The top ends of a plurality of first structural piles 4 are fixed on the lining structural plate 3, and the bottom ends of the first structural piles extend downwards; a plurality of first structural piles 4 are distributed on both sides of the lower tunnel 2. A plurality of bosses 5 and a plurality of first structural piles 4 one-to-one, the bosses 5 are connected between the lower layer tunnel 2 and the corresponding first structural piles 4, and the bosses 5 are used for making the structural piles and the lower layer tunnel 2 into an integral structure.
The utility model provides a stereoscopic crossing tunnel structure for an electric power system, which has the advantages that: compared with the prior art, the lining structural plate 3 is arranged at the bottom of the upper layer tunnel 1 in the electric power system three-dimensional crossing tunnel structure, the lower layer tunnel 2 is arranged below the upper layer tunnel 1, and the upper layer tunnel 1 and the lower layer tunnel 2 form an included angle. A plurality of first structural piles 4 are fixed at the top end on the lining structural plate 3 and extend downwards at the bottom end. The reinforcing blocks 5 are connected between the lower tunnel 2 and the respective first structural piles 4.
First, the plurality of first structural piles 4 improve the stability of the upper tunnel 1 by being connected with the lining structural plates 3. Each reinforcing block 5 corresponds to one of the first structural piles 4, and a relatively stable integral structure is maintained between the first structural pile 4 and the lower tunnel 2 by means of the reinforcing block 5. In this application, guaranteed the stability of position between upper tunnel 1 and the lower floor's tunnel 2 through first structure stake 4 and boss 5, improved the security, the emergence of prevention accident.
In some embodiments that are used for electric power system fly-over tunnel structure that this application provided, lower floor's tunnel 2 includes a plurality of sections of jurisdiction of arranging in proper order, and boss 5 is connected between two adjacent sections of jurisdiction to be equipped with the structure muscle in the boss 5, the structure muscle is fixed with two adjacent sections of jurisdiction.
With the development of national economy of China, the demand on infrastructure, especially on the construction of traffic facilities, is continuously increasing, and meanwhile, high-grade traffic trunks are also developed unprecedentedly. For example: the high-speed/heavy-duty railway and the highway are respectively the main directions of the development of the land traffic such as the railway, the highway and the like; the construction of urban subways and urban underpass tunnels is also an important means for alleviating urban traffic; meanwhile, with the vigorous development of water conservancy and hydropower in western large-scale development, the construction of diversion tunnels appears in large quantities.
On one hand, as the demand of the total amount of traffic facilities is continuously increased, new lines are inevitably built beside the existing lines, the lines are built at one time, the existing railway lines are transformed, and the newly built railways are parallel to the highways to increase the traffic volume; on the other hand, requirements on the running speed and the safety of the train are continuously improved, and independent design schemes of an upper tunnel and a lower tunnel are generally adopted no matter a newly-built railway tunnel or an expressway tunnel. Therefore, the flyover tunnels inevitably emerge in large numbers.
At present, no mature standard regulation exists for a monitoring and measuring method for the construction of the stereo cross tunnel, most of the monitoring and measuring methods are carried out by referring to the conventional monitoring and measuring method for the construction of the single-hole tunnel based on artificial experience in the actual operation process, and the mutual influence degree characteristics of the construction of cross sections in the construction process of the stereo cross tunnel are not or cannot be comprehensively considered, so that the influence degree is excessively estimated in the actual construction process, a large amount of unnecessary monitoring work is increased, and the resource waste is caused; or the influence degree is estimated excessively, so that key information is lost, the actual construction state cannot be reflected, the construction cannot be effectively guided, and the construction risk is increased.
The pile foundation is a foundation form with high bearing capacity, wide application range and long history. With the improvement of production level and the development of scientific technology, the type, process, design theory, calculation method and application range of the pile foundation are greatly developed, and the method is widely applied to projects such as high-rise buildings, ports, bridges and the like.
The pile is a force transmission component which transmits all or part of the load of the building to the foundation soil and has certain rigidity and bending resistance, and the cross section size of the pile is far smaller than the length of the pile. The pile foundation is composed of a plurality of piles (called pile groups) buried in the foundation and a pile platform (called bearing platform) which combines the pile groups to work together.
The pile foundation has the function of transferring load to a soil layer with good bearing performance deeper underground so as to meet the requirements of bearing capacity and settlement. The pile foundation has high bearing capacity, can bear vertical load and horizontal load, can resist uplift load and can bear vibration load, and is a deep foundation form which is most widely applied.
Upper tunnel 1 and lower floor's tunnel 2 can be formed by a plurality of sections of jurisdiction installation in proper order, and boss 5 is used for making upper tunnel 1 and lower floor's tunnel 2 become a relatively stable structure. Because relative dislocation can take place between the adjacent section of jurisdiction, for the stability between the section of jurisdiction that lies in upper tunnel 1 below in guaranteeing lower floor's tunnel 2, connect boss 5 between two adjacent sections of jurisdiction in this application to a certain extent, avoided producing the settlement of different degrees between two adjacent sections of jurisdiction.
The reinforcing block 5 is used for forming the lower layer tunnel 2 and the first structural pile 4 into an integral structure, and in order to ensure the stability of the structure of the reinforcing block, structural bars are required to be arranged in the reinforcing block 5 and are reinforcing meshes, so that the failure of connection of the first structural pile 4 and the lower layer tunnel 2 is avoided through the arrangement.
At present, the traditional construction process of the electric power tunnel adopts three modes, which are respectively as follows: a direct buried pipeline construction method, an open slot cast-in-place construction method and a shallow buried underground excavation construction method.
The open slot cast-in-place construction method comprises the following steps: when the open trench can be excavated under the condition in the city, the open trench is excavated, and the concrete power square trench is cast by the formwork on site, so that the construction method has the advantages that: the method is convenient and quick, and the construction cost is low; the disadvantages are as follows: the method has great influence on urban traffic and environment, is unfavorable for energy conservation and emission reduction, and has great difficulty in green civilized construction.
Shallow-buried underground excavation construction method: the construction method is characterized in that the construction is carried out by adopting a shallow-buried underground excavation method without conditional open excavation in cities, the full section is grouted to stop water, the tunnel adopts a vault and a straight wall and is composed of a steel grating, primary support of sprayed concrete and molded concrete secondary lining, and a flexible waterproof layer is arranged between the two linings.
Still need take measures such as advance support, slip casting stagnant water according to geological hydrology condition, the advantage: the influence on urban traffic is small; the disadvantages are as follows: the process is complex, the progress is slow, the manufacturing cost is high, and the chemical slurry can cause certain pollution to the underground water in the water stopping construction.
In some embodiments of the present application for an electricity system overpass tunnel structure, please refer to fig. 1 to 3, the bottom end of the first structural pile 4 penetrates the reinforcing block 5 and extends to the lower part of the lower tunnel 2; the structural reinforcement extends into the first structural pile 4 and is fixed with the reinforcement in the first structural pile 4.
The number of first structural piles 4 may be two, the effect of the first structural piles 4 on the one hand improving the stability of the upper layer tunnel 1 and on the other hand ensuring the relative position with the lower layer tunnel 2. For this purpose, the length of the first structural pile 4 should be increased as much as possible, so that the first structural pile 4 can play a role in the stability of the lower tunnel 2 to a greater extent.
The first structural piles 4 run through the reinforcing blocks 5, and the structural bars in the reinforcing blocks 5 need to be connected with the lower-layer tunnel 2 to ensure the stability of connection with the lower-layer tunnel 2. At the same time the first structural pile 4 has a downward force on the reinforcing block 5 which may cause the first structural pile 4 to fail in connection with the reinforcing block 5.
In order to improve the structural stability of the first structural pile 4, reinforcing ribs are arranged along the length direction of the first structural pile 4, and in order to avoid connection failure, when the reinforcing block 5 is arranged, the structural ribs in the reinforcing block 5 and the reinforcing ribs need to be welded and fixed, so that the first structural pile 4 and the reinforcing ribs are integrated. During actual operation, need reject the concrete of parcel in the strengthening rib outside, then accomplish being connected of structural reinforcement and strengthening rib.
In some embodiments of the present application for the power system overpass tunnel structure, please refer to fig. 2 and 3, a plurality of reinforcing blocks 5 are oppositely distributed on both sides of the lower tunnel 2.
The quantity of boss 5 can be two, and two boss 5 distribute in the both sides of lower floor tunnel 2, and two boss 5 need be located the below of upper tunnel 1, through making two relative settings of boss 5 for the effort that receives in lower floor tunnel 2 both sides is as close as possible.
In the construction of tunnels, tunnel segments need to be laid on the inner wall of a hole body which is already dug. The both ends of tunnel section of jurisdiction usually can set up sand grip and recess of mutually supporting in order to connect two adjacent lamellar bodies. After splicing the two sheet bodies, the convex strip of one sheet body enters the groove of the other sheet body, and the two sheet bodies are locked by using bolts or steel nails, so that high stability can be obtained. Finally, a plurality of segments are spliced into a section of unit pipe, and the plurality of sections of unit pipe are connected in sequence to form a long tunnel.
However, after the tunnel is built, water seepage often occurs, which causes adverse effects on train operation. The main reasons for water seepage are: the gap between the two pipe pieces does not meet the process standard when the waterproof agent is coated, or the waterproof agent is aged and repaired, so that water enters the tunnel from the gap.
During the construction of subways, highways and high-speed railways, tunnels are often built underground or in mountains, and therefore tunneling machines are needed. The entry driving machine utilizes the rock in the broken soil of gyration cutter to along with the rotation of cutter, unload earth and broken rock etc. on the conveyer belt, form whole tunnel section, and assemble the tunnel section of jurisdiction on the tunnel wall that forms, the tunnel section of jurisdiction is assembled in the tunnel, plays preliminary supporting role formation tunnel, thereby can accomplish tunnel construction work safely, high-efficiently.
At present, the tunnel pipe sheet is transported and assembled by manual sheet feeding. The manual assembly of the duct pieces depends on the manual technical level, and the phenomena of large joints between the duct pieces, dislocation of the duct pieces and the like often occur, so that the assembly precision of the duct pieces is low, the stability and the safety of the tunnel are low, the tunnel duct pieces are often collided in the lifting and assembling processes of the duct pieces, the damage of the duct pieces is caused, and the water leakage of the tunnel is easily caused. Meanwhile, the tunnel segment is assembled manually at a low speed, and the tunnel construction efficiency is reduced.
In some embodiments of the present invention for an electricity system grade separation tunnel structure, please refer to fig. 1 to 3 together, a plurality of second structural piles are fixed on the lower layer tunnel 2, and the second structural piles penetrate through the reinforcing block 5.
In order to further improve the stability between upper tunnel 1 and lower floor's tunnel 2, at first be fixed with a plurality of second structure stake at 2 outer walls in lower floor's tunnel, the second structure stake is run through boss 5 equally, consequently make first structure stake 4 and second structure stake structure as an organic whole through boss 5, and the existence of second structure stake has not only improved lower floor's tunnel 2 stability, can improve the intensity that lower floor's tunnel 2 and boss 5 are connected simultaneously, last stability through second structure stake improved upper tunnel 1.
In some embodiments of the present application for an electricity system grade separation tunnel structure, please refer to fig. 1 to 3 together, the first structural piles 4 are vertically arranged, and the second structural piles are horizontally arranged.
The vertical setting of first structure stake 4 just can guarantee to have stronger support capacity to upper tunnel 1, and second structure stake level sets up, improves the stability that provides boss 5 to a certain extent. The second structure stake that the level set up can improve upper tunnel 1 and lower floor's tunnel 2 and resist the ability of assaulting in the horizontal direction to under first structure stake 4 and second structure stake complex effect, make upper tunnel 1 and lower floor's tunnel 2 homoenergetic certain bearing capacity.
In some embodiments of the present application for a power system flyover crossing tunnel structure, please refer to fig. 2, the first structural pile 4 and the second structural pile are respectively a first anchor rod and a second anchor rod 6, a first positioning rib and a second positioning rib 7 are respectively arranged in the first anchor rod and the second anchor rod 6, and the structural ribs are respectively fixed with the first positioning rib and the second positioning rib 7.
And (3) placing a high-strength steel or molecular synthetic material rod-shaped or linear structure in the side slope soil layer or rock stratum of the foundation pit through drilling. One end of the anchor rod is anchored in a stable soil layer or a rock mass, the other end of the anchor rod is fixed on an enclosure structure at the wall surface of a slope or a drill hole through an anchorage device, and the lateral load borne by the enclosure structure is transferred to the surrounding stable stratum through the tie action of the anchor rod, so that the anchor rod supporting structure is called as an active supporting structure.
And (3) placing a high-strength steel or molecular synthetic material rod-shaped or linear structure in the side slope soil layer or rock stratum of the foundation pit through drilling. One end of the anchor rod is anchored in a stable soil layer or a rock mass, the other end of the anchor rod is fixed on an enclosure structure at the wall surface of a slope or a drill hole through an anchorage device, and the lateral load borne by the enclosure structure is transferred to the surrounding stable stratum through the tie action of the anchor rod, so that the anchor rod supporting structure is called as an active supporting structure.
For the convenience of operation, first structure stake 4 and second structure stake all can be replaced by first stock and second stock 6 respectively, are provided with first location muscle and second location muscle 7 in first stock and the second stock 6 respectively, and carry out welded fastening through making first location muscle and second location muscle 7 respectively with the structure muscle, can make first structure stake 4, second structure stake and boss 5 structure as an organic whole.
In some embodiments of the present application for an electricity system grade separation tunnel structure, please refer to fig. 2, a reinforcing frame 8 is disposed outside the reinforcing block 5, and both the first structural pile 4 and the second structural pile penetrate through the reinforcing frame 8; the reinforcing frame 8 is close to the open setting in one side of lower floor's tunnel 2, and reinforcing frame 8 intussuseption is filled with the concrete that is used for forming reinforcing block 5.
The reinforcing frame 8 is corrosion-resistant material, and during actual construction, through the outside excavation entrance to a cave in two adjacent regions of section of jurisdiction, then handle first structure stake 4, make the first location muscle in the first structure stake 4 expose. Then, the reinforcing frame 8 is installed, and the reinforcing frame 8 is used for ensuring the external dimension of the reinforcing block 5 and has a certain protection effect on the reinforcing block 5.
After 8 installations of rib frame are accomplished, erect the structure muscle in rib frame 8, the tip of structure muscle can with 8 welded fastening of rib frame, with the structure muscle respectively with first location muscle and 7 fixed backs of second location muscle, inject the concrete in rib frame 8, form boss 5 after the concrete curing.
In some embodiments of the stereoscopic crossing tunnel structure for the power system provided in the present application, please refer to fig. 2, the reinforcing frame 8 includes a plurality of reinforcing plates, the plurality of reinforcing plates are sequentially arranged and welded to form the reinforcing frame 8, and the reinforcing plates are provided with abdicating holes for evading the first structural piles 4 and the second structural piles.
Splice according to certain order between a plurality of reinforcing plates and can become rib 8, need fix the reinforcing plate who offers the hole of stepping down in suitable position when the concatenation, more importantly makes the second structure stake can run through corresponding hole of stepping down.
In some embodiments of the present application for an electricity system grade separation tunnel structure, please refer to fig. 3, a plurality of third structural piles 9 are disposed at the bottom of the lower tunnel 2, the plurality of third structural piles 9 are all vertically disposed, and the plurality of third structural piles 9 are arranged at intervals along the length direction of the lower tunnel 2.
Third structural pile 9 is used for improving the stability of lower floor's tunnel 2, and third structural pile 9 equally can be the third stock, and after the third stock construction was accomplished, the structure of whole lower floor's tunnel 2 can be guaranteed stably, also can guarantee the stability of lower floor's tunnel 2 to a certain extent.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A fly-over tunnel structure for power system, characterized by, includes:
the bottom of the upper layer tunnel is provided with a lining structural plate;
the lower layer tunnel is positioned below the upper layer tunnel, and the lower layer tunnel and the upper layer tunnel form an included angle;
a plurality of first structural piles, the top ends of which are fixed on the lining structural plate and the bottom ends of which extend downwards; the first structural piles are distributed on two sides of the lower-layer tunnel;
the reinforcing blocks are in one-to-one correspondence with the first structural piles, connected between the lower-layer tunnel and the corresponding first structural piles and used for enabling the structural piles and the lower-layer tunnel to be of an integrated structure.
2. The fly-over tunnel structure for the power system as claimed in claim 1, wherein the lower layer tunnel comprises a plurality of segments arranged in sequence, the reinforcing blocks are connected between two adjacent segments, and structural ribs are arranged in the reinforcing blocks and fixed with the two adjacent segments.
3. The fly-over tunnel structure for power system of claim 2, wherein the bottom end of the first structural pile extends through the reinforcing block and below the lower tunnel; the structural bars extend into the first structural pile and are fixed with the reinforcing bars in the first structural pile.
4. The fly-over tunnel structure for power system of claim 1, wherein a plurality of said reinforcing blocks are distributed oppositely on both sides of said lower tunnel.
5. The fly-over tunnel structure for power system of claim 2, wherein a plurality of second structural piles are fixed to the lower layer tunnel, the second structural piles penetrating the reinforcing blocks.
6. The fly-over tunnel structure for power systems of claim 5, wherein the first structural piles are arranged vertically and the second structural piles are arranged horizontally.
7. The fly-over tunnel structure for the power system according to claim 5, wherein the first structural pile and the second structural pile are a first anchor rod and a second anchor rod, respectively, a first positioning rib and a second positioning rib are respectively arranged in the first anchor rod and the second anchor rod, and the structural ribs are respectively fixed with the first positioning rib and the second positioning rib.
8. The fly-over tunnel structure for the power system according to claim 5, wherein a reinforcing frame is provided on an outer side of the reinforcing block, and the first structural pile and the second structural pile each penetrate through the reinforcing frame; the reinforcing frame is close to the open setting in one side of lower floor's tunnel, the reinforcing frame intussuseption is filled with and is used for forming the concrete of boss.
9. The fly-over tunnel structure for the power system according to claim 8, wherein the reinforcing frame comprises a plurality of reinforcing plates, the plurality of reinforcing plates are sequentially arranged and welded and fixed to form the reinforcing frame, and the reinforcing plates are provided with abdicating holes for evading the first structural piles and the second structural piles.
10. The fly-over tunnel structure for the power system according to claim 1, wherein a plurality of third structural piles are arranged at the bottom of the lower tunnel, the plurality of third structural piles are vertically arranged, and the plurality of third structural piles are arranged at intervals along the length direction of the lower tunnel.
CN202122601391.0U 2021-10-27 2021-10-27 Stereoscopic crossing tunnel structure for power system Active CN216043718U (en)

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Application Number Priority Date Filing Date Title
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CN216043718U true CN216043718U (en) 2022-03-15

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