Intensive overpass and urban tunnel combined structure

Abstract

The utility model belongs to the urban underground space development technical field, concretely relates to an intensive street crossing tunnel and city tunnel combined structure, the combined structure is two layers vertically superimposed arrangement, includes ground floor and underground second floor, sets up the subway and comprehensive pipe gallery in the ground floor, sets up the car tunnel in the underground second floor, the subway and comprehensive pipe gallery are left and right two groups horizontal parallel arrangement, the subway is located in both sides, comprehensive pipe gallery is located in the middle, the car tunnel is one group horizontal parallel arrangement's two -way car tunnel, the top of car tunnel and the bottom of subway and comprehensive pipe gallery share, the both sides outer wall of subway and comprehensive pipe gallery and the both sides outer wall of car tunnel share, simultaneously still include the stairway for connecting the subway and outside, the convenient people walk.

Description

Technical Field

[0001] This utility model relates to the field of urban underground space development technology, specifically to a structural system that vertically combines vehicular tunnels and pedestrian underpasses, applicable to scenarios such as urban road intersections and transportation hubs where the needs of separating vehicular and pedestrian traffic must be addressed simultaneously. Background Technology

[0002] With the rapid development of cities, surface space is no longer sufficient to meet the massive traffic flow of a large city. Many cities in China have extended road transportation construction underground, such as urban tunnels, pedestrian underpasses, and underground parking garages. Separating vehicular tunnels and pedestrian underpasses requires two excavations, occupying a large amount of surface space, which is particularly difficult to implement in densely populated urban areas. Furthermore, independent structures require repeated construction of foundation pit support systems, ventilation systems, and entrances / exits, resulting in high costs, long traffic diversion cycles, and repeated pipeline relocations. Therefore, this invention designs an intensive structure that combines pedestrian underpasses and urban tunnels. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated structure combining pedestrian underpasses and urban tunnels, which improves the utilization rate of underground space and reduces land occupation while meeting the multiple functions of urban traffic, pedestrian underpasses and municipal pipelines, and is expected to effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An integrated structure combining pedestrian underpasses and urban tunnels is disclosed. The structure consists of two vertically stacked levels, including a first underground level and a second underground level. The first underground level houses a pedestrian underpass and a utility tunnel, while the second underground level houses a vehicular tunnel. The pedestrian underpass and utility tunnel are arranged in two horizontally parallel groups, with the pedestrian underpass on both sides and the utility tunnel in the middle. The vehicular tunnel is a set of horizontally parallel bidirectional vehicular tunnels. The top of the vehicular tunnel is shared with the bottom of the pedestrian underpass and the utility tunnel, and the outer walls on both sides of the pedestrian underpass and the utility tunnel are shared with the outer walls on both sides of the vehicular tunnel.

[0006] It also includes stairways, used to connect the pedestrian tunnels to the outside world.

[0007] Furthermore, the two sets of integrated utility tunnels are separated by a central partition wall.

[0008] Furthermore, the pedestrian underpass and the integrated utility tunnel are separated by a partition plate.

[0009] Furthermore, the two sets of integrated utility tunnels consist of a high-voltage power compartment and an integrated compartment.

[0010] Furthermore, the stairway is equipped with steps for going up and down.

[0011] Furthermore, the pedestrian underpass, integrated utility tunnel, and vehicular tunnel are constructed as a single, cast-in-place reinforced concrete structure.

[0012] This utility model presents an integrated structure combining pedestrian underpasses and urban tunnels, which has significant engineering and social benefits, mainly reflected in the following aspects:

[0013] 1. When constructing urban tunnels, pedestrian underpasses, and integrated utility tunnels in the core area, the aforementioned integrated structure of pedestrian underpasses and urban tunnels can make full use of urban underground space and reduce land occupation and project scale.

[0014] 2. The construction of urban tunnels, pedestrian underpasses, and integrated utility tunnels in the core urban area requires large-scale underground engineering construction. The aforementioned integrated structure of pedestrian underpasses and urban tunnels can be constructed simultaneously, which can significantly shorten the construction period and reduce the adverse impacts on the urban environment, including noise, uneven settlement of the surrounding area, and long-term occupation of existing roads.

[0015] 3. The combined structure can significantly reduce the amount of engineering work such as foundation pit excavation and support, and main structure pouring, avoiding the high-risk operations when multiple projects are constructed in succession and the adverse effects on the existing structure, thus saving investment costs.

[0016] 4. During the construction phase, the combined structure allows for simultaneous design and construction, reducing construction management costs and improving efficiency, thereby conserving social resources. During the operational phase, the structural maintenance of urban tunnels, pedestrian underpasses, and integrated utility tunnels adopts the same standards, improving operational management efficiency and saving on operation and maintenance costs.

[0017] 5. Through innovation across the entire chain of "planning-design-construction-operation and maintenance", a new construction model for the efficient utilization of underground space has been established, which is particularly suitable for high-density development scenarios in urban core areas and provides a sustainable development solution for the construction of modern urban infrastructure. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of a combined pedestrian underpass and urban tunnel structure according to this utility model.

[0019] Figure 2 This is a schematic diagram illustrating the application of an integrated pedestrian underpass and urban tunnel combined structure according to this utility model. Detailed Implementation

[0020] The present invention will be described in detail below with reference to specific implementation examples. The following implementation examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way.

[0021] like Figure 1 , Figure 2 As shown, this utility model relates to an integrated structure combining pedestrian underpasses and urban tunnels. The combined structure is arranged vertically in two layers, including an underground level 1 (01) and an underground level 2 (02). The underground level 1 (01) houses a pedestrian underpass 1 and a utility tunnel 2, while the underground level 2 (02) houses a vehicular tunnel 3. The pedestrian underpass 1 and the utility tunnel 2 are arranged in two horizontally parallel groups, with the pedestrian underpass 1 on both sides and the utility tunnel 2 in the middle. The vehicular tunnel 3 is a set of horizontally parallel bidirectional vehicular tunnels. The top of the vehicular tunnel 3 is shared with the bottom of the pedestrian underpass 1 and the utility tunnel 2, and the outer walls of the pedestrian underpass 1 and the utility tunnel 2 are shared with the outer walls of the vehicular tunnel 3.

[0022] It also includes staircase 4, which connects pedestrian tunnel 1 to the outside world.

[0023] The pedestrian underpass 1, integrated utility tunnel 2, and vehicular tunnel 3 described in this plan are integrally cast-in-place reinforced concrete structures. The vehicular tunnel 3 adopts a double-compartment cross-section to achieve two-way traffic. The cross-sectional dimensions are determined by factors such as lane size, width, height limit, disaster prevention and evacuation, maintenance, decoration, and electromechanical installation. The pedestrian underpass 1 adopts a rectangular single-compartment cross-section, symmetrically distributed on both sides of the first basement level, with stairways 4 leading directly to the ground on both sides to connect to the outside world (ground-level pedestrian walkways). Considering the large number and close spacing of nodes such as ventilation openings, escape exits, material inlets, and outlets, the integrated utility tunnel 2 is integrated in the central area of ​​the first basement level to meet the functional requirements of the integrated utility tunnel and reduce construction and operation and maintenance costs. The cross-sectional dimensions are determined by the type and quantity of pipelines, personnel maintenance, and evacuation requirements. The number and size of the compartments can be adjusted according to actual needs. The top of the vehicular tunnel 3 is shared with the bottom of the pedestrian underpass 1 and the integrated utility tunnel 2. The outer walls on both sides of the pedestrian underpass 1 and the integrated utility tunnel 2 are shared with the outer walls on both sides of the vehicular tunnel 3, which can reduce construction and save costs.

[0024] In the above embodiments, the actual construction process can be carried out in two steps. The first step adopts the open-cut method and the concrete casting process. The main structure of the tunnel can be constructed first, and the combined structure can be constructed from bottom to top. The second step can be to excavate and pour the ladder structure. When the combined structure is poured in stages, a centrally embedded waterstop is set at the longitudinal construction joint. A centrally embedded waterstop is set at the circumferential construction joint between the longitudinal segments of the combined structure. The combined structure adopts a fully enclosed waterproof form, and a fully enclosed waterproof layer is set on the outside of the structure.

[0025] Furthermore, the two sets of integrated utility tunnels 2 are separated by a central partition wall 5, which can function as a load-bearing wall.

[0026] Furthermore, the pedestrian underpass 1 and the integrated utility tunnel 2 are separated by a partition plate 6, so that the pedestrian underpass and the integrated utility tunnel do not interfere with each other and ensure the safety of the pedestrian underpass.

[0027] Furthermore, the two sets of integrated utility tunnels 2 consist of a high-voltage power compartment 21 and an integrated compartment 22, which can accommodate power, water supply, communication and other pipelines. The cross-sectional dimensions of the integrated utility tunnel 2 are determined by the pipeline type, quantity, personnel maintenance and evacuation requirements, etc., and the number and size of the compartments can be adjusted according to actual needs.

[0028] Furthermore, the stairway 4 is provided with steps 41 for going up and down, which makes it easier for people to walk.

[0029] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. An integrated structure of an intensive underpass and an urban tunnel, characterized in that The combined structure is arranged vertically in two layers, including a first basement level (01) and a second basement level (02). A pedestrian underpass (1) and a utility tunnel (2) are set in the first basement level (01), and a vehicle tunnel (3) is set in the second basement level (02). The pedestrian underpass (1) and the utility tunnel (2) are arranged in two horizontal parallel groups on the left and right sides. The pedestrian underpass (1) is located on both sides, and the utility tunnel (2) is located in the middle. The vehicle tunnel (3) is a set of two-way vehicle tunnels arranged in a horizontal parallel group. The top of the vehicle tunnel (3) is shared with the bottom of the pedestrian underpass (1) and the utility tunnel (2). The outer walls on both sides of the pedestrian underpass (1) and the utility tunnel (2) are shared with the outer walls on both sides of the vehicle tunnel (3). It also includes stairways (4) for connecting the pedestrian tunnel (1) to the outside world.

2. The integrated pedestrian underpass and urban tunnel combined structure as described in claim 1, characterized in that... The two sets of integrated utility tunnels (2) are separated by a central partition wall (5).

3. The integrated pedestrian underpass and urban tunnel combined structure as described in claim 1, characterized in that... The pedestrian underpass (1) and the integrated utility tunnel (2) are separated by a partition plate (6).

4. The integrated pedestrian underpass and urban tunnel combined structure as described in claim 1, characterized in that... The two sets of integrated utility tunnels (2) consist of a high-voltage power compartment (21) and an integrated compartment (22).

5. The integrated pedestrian underpass and urban tunnel combined structure as described in claim 1, characterized in that... The stairway (4) is provided with steps (41) for going up and down.

6. The integrated pedestrian underpass and urban tunnel combined structure as described in claim 1, characterized in that... The pedestrian underpass (1), the integrated utility tunnel (2), and the vehicular tunnel (3) are integral cast-in-place reinforced concrete structures.

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