Lining structure for internal drainage of urban door opening-shaped gallery
By setting up inclined drainage slopes and sidewalks in the lining structure of the city gate tunnel corridor, the problem of traditional drainage ditches affecting structural stability is solved, and the effect of simplifying construction and improving drainage efficiency is achieved.
Patent Information
- Application Number
- CN202411621121.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2024-12-20
AI Technical Summary
When setting up drainage ditches, the city gate tunnel-shaped corridor lining structure weakens the structural dimensions and stability, increases construction difficulty and cost, and affects the safety and quality of the structure.
A city gate-shaped reinforced concrete lining is used to set up a city gate hole-shaped reinforced concrete lining along the corridor, and a drainage slope is set up inclined on the base plate. Combined with a sidewalk, it replaces the traditional concave drainage ditches, realizes slope drainage, and simplifies the layout of steel bars and formwork erection.
It improves the stability and construction convenience of the lining structure, reduces construction costs and cycles, and realizes effective drainage functions.
Smart Images
Figure CN119163442A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of corridor drainage construction, in particular to a lining structure used for internal drainage of a city gate tunnel-shaped corridor. Background Art
[0002] The gate-shaped corridor is a common structure in hydraulic structures. In order to reduce surface settlement, improve overall structural stability, and improve hydrological protection effects, lining is often set inside the corridor. For small-diameter corridors of 3 to 5 meters, thin lining is more economical, but considering functionality and safety, the lining thickness should be at least 0.4 meters. The double-layer concrete lining structure of the gate-shaped corridor is mostly 0.4 to 0.5 meters thick, which meets the above requirements. However, in order to collect wastewater and discharge it out of the corridor, it is necessary to set drainage ditches on one or both sides of the corridor (see Figure 1 ). The setting of the above-mentioned drainage ditch weakens the structural dimensions of the lining and increases the shear force at the corners of the bottom plate and side walls of the lining structure, affecting the overall structural stability of the lining. In addition, during the construction process, the drainage ditch area needs to be densely laid with steel bars and additional formwork erected, which not only increases the workload and affects the construction progress, but also makes construction inconvenient during steel bar anchoring and concrete vibration, thus affecting the safety and quality of the corridor lining structure. Summary of the invention
[0003] In order to solve the above problems, the present invention provides a lining structure for internal drainage of a city gate tunnel-shaped corridor, which can specifically adopt the following technical solutions: The lining structure for internal drainage of a city gate tunnel-shaped corridor described in the present invention comprises a city gate tunnel-shaped reinforced concrete lining arranged along the inner contour of the corridor, a drainage slope inclined downward toward the side of the corridor is arranged on the bottom plate of the city gate tunnel-shaped reinforced concrete lining, the bottom plate is a plane structure, and the slope of the drainage slope is ≤10%.
[0004] A pedestrian walkway connected to the higher side of the drainage slope is also provided on the bottom plate, and the pedestrian walkway is arranged at the same height as the higher side of the drainage slope.
[0005] When the drainage slope is inclined toward one side of the corridor, the drainage slope is arranged alone on the bottom plate, and its two sides are respectively connected to the side walls of the gate-shaped reinforced concrete lining; or the drainage slope and the sidewalk are arranged side by side on the bottom plate, and one side of the sidewalk and the lower side of the sidewalk are respectively connected to the side walls of the gate-shaped reinforced concrete lining.
[0006] When the drainage slope is inclined toward both sides of the corridor, the drainage slope is divided into two sections; the higher sides of the two drainage slopes are adjacent to each other, and the lower sides are respectively connected to the side walls of the city gate-shaped reinforced concrete lining; or the sidewalk is arranged between the two drainage slopes, and the lower sides of the two drainage slopes are respectively connected to the side walls of the city gate-shaped reinforced concrete lining.
[0007] The width of the bottom plate is 3-5m, and the cross-sectional area of each section of the drainage slope is 0.06-0.65m 2 .
[0008] The lining structure for internal drainage of the city gate tunnel corridor provided by the present invention adopts slope drainage to replace the traditional concave drainage ditch, and reasonably arranges pedestrian walkways, which changes the current situation that the concave drainage ditch needs to be densely laid with steel bars. It not only facilitates the steel bar layout and simplifies the template erection, but also does not weaken the load-bearing structure of the city gate tunnel corridor lining, and can take into account the quality and safety of drainage and lining structures. The present invention has a simple structure, is easy to construct, has a small on-site workload, has a low construction cost, and can greatly shorten the construction period. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of the existing city gate tunnel corridor lining.
[0010] Figure 2 It is a structural schematic diagram of the gate tunnel corridor lining in Example 1.
[0011] Figure 3 It is a structural schematic diagram of the gate arch corridor lining in Example 2.
[0012] Figure 4 It is a structural schematic diagram of the gate tunnel corridor lining in Example 3.
[0013] Figure 5 It is a structural schematic diagram of the gate tunnel corridor lining in Example 4. DETAILED DESCRIPTION
[0014] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific construction process are given, but the protection scope of the present invention is not limited to the following embodiment.
[0015] like Figure 2-5As shown, the lining structure for internal drainage of a city gate tunnel corridor described in the present invention includes a city gate tunnel reinforced concrete lining arranged along the inner contour of the corridor, and a drainage slope 2 inclined downward toward the side of the corridor is arranged on the bottom plate 1 of the city gate tunnel reinforced concrete lining. The above-mentioned bottom plate 1 is a plane structure, and its net width (i.e., the length perpendicular to the longitudinal direction of the corridor) is not less than 3 meters, generally 3~5m. The cross-section of the drainage slope 2 is a right triangle, and one or two sections are arranged on the bottom plate 1, and the cross-sectional area of each section is 0.06~0.65m 2 , the slope is ≤10%. Preferably, a pedestrian walkway 3 connected to the higher side of the drainage slope 2 is also provided on the bottom plate 1, the pedestrian walkway 3 is arranged at the same height as the higher side of the drainage slope 2, and the width of the pedestrian walkway 3 is generally about 0.75m.
[0016] Embodiment 1: like Figure 2 As shown in the figure, the bottom plate 1 of the city gate-shaped reinforced concrete lining has a net width of X meters, and a drainage slope 2 is set on it. The drainage slope 2 (with a right triangle cross section and an area of A meters 2 The bottom of the slab is equal in length to the bottom plate 1, and the two sides are connected to the side walls 4 of the gate-shaped reinforced concrete lining, and the top surface forms a slope of i%=2A / X 2 ×100% slope, the accumulated water in the corridor gathers from the high end of the slope to the low end, thus realizing the one-sided drainage of the city gate corridor.
[0017] Embodiment 2: like Figure 3 As shown, the bottom plate 1 of the city gate-shaped reinforced concrete lining has a net width of X meters, on which a sidewalk 3 and a drainage slope 2 are arranged side by side. The sidewalk 3 is arranged close to the side wall 4 of the city gate-shaped reinforced concrete lining, and the other side of the sidewalk 3 is closely connected to the drainage slope 2. In the direction perpendicular to the longitudinal length of the corridor, the length of the sidewalk 3 is L meters, and the bottom length of the adjacent sidewalk 3 is (XL) meters. The cross section of the drainage slope 2 is a right triangle with an area of A meters. 2 One end adjacent to the sidewalk 3 is set at the same height as the sidewalk 3, and the other end gradually extends downward to the other side wall 4 of the gate-shaped reinforced concrete lining, so that the top surface forms a slope of i%=2A / (XL) 2 ×100% slope. Workers can walk conveniently along the sidewalk 3 in the corridor, and the accumulated water in the corridor gathers toward the lower end along the drainage slope 2, thus achieving single-side drainage of the city gate corridor.
[0018] Embodiment 3: like Figure 4As shown, the bottom plate 1 of the city gate-shaped reinforced concrete lining has a net width of X meters, and two drainage slopes 2 are arranged side by side on it. The two drainage slopes 2 are equal in size and symmetrically arranged along the longitudinal center line of the corridor. The cross section of each drainage slope 2 is a right triangle with an area of A meters. 2 The bottom length of the two drainage slopes 2 is X / 2 meters, the higher end is closely connected, and the lower end extends to the side wall 4 of the gate-shaped reinforced concrete lining, thus forming two sections with a slope of i%=8A / X 2 ×100% slope. The accumulated water in the corridor is gathered from the high end of the two slopes to the low end, thus realizing the double-sided drainage of the city gate corridor.
[0019] Embodiment 4: like Figure 5 As shown, the bottom plate 1 of the city gate-shaped reinforced concrete lining has a net width of X meters, on which a pedestrian walkway 3 is located in the middle, and a drainage slope 2 is set on both sides of the pedestrian walkway 3. In the direction perpendicular to the longitudinal length of the corridor, the length of the pedestrian walkway 3 is L meters, and the bottom length of the adjacent pedestrian walkways 3 is (XL) / 2 meters. The cross-section of each drainage slope 2 is a right triangle with an area of A meters 2 The end adjacent to the sidewalk 3 is set at the same height as the sidewalk 3, and the other end gradually extends downward to the other side wall 4 of the gate-shaped reinforced concrete lining, so that the top surface forms a slope of i%=8A / (XL) 2 ×100% slope. Workers can walk conveniently along the central pedestrian walkway 3 in the corridor, and the accumulated water in the corridor will gather to the lower ends on both sides along the two drainage slopes 2, thereby achieving double-sided drainage of the city gate corridor.
[0020] The lining structure for internal drainage of a city gate tunnel-shaped corridor described in the present invention is usually constructed according to the following steps: The first step is to excavate the city gate corridor according to the designed section; The second step is to tie the gate-shaped lining steel bars 5 according to the internal contour of the corridor and install the formwork; The third step is to integrally cast the gate-shaped reinforced concrete lining and the drainage slope 2 and the pedestrian walkway 3 on the bottom plate 1; or after the gate-shaped reinforced concrete lining is cast, the drainage slope 2 and the pedestrian walkway 3 are cast.
[0021] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
Claims
1. A lining structure for internal drainage of a city gate tunnel corridor, characterized in that: It comprises a gate-shaped reinforced concrete lining arranged along the inner contour of the corridor, wherein a drainage slope inclined downward toward the side of the corridor is arranged on the bottom plate of the gate-shaped reinforced concrete lining, the bottom plate is a plane structure, and the slope of the drainage slope is ≤10%.
2. The lining structure for internal drainage of a city gate tunnel-shaped corridor according to claim 1 is characterized in that: A pedestrian walkway connected to the higher side of the drainage slope is also provided on the bottom plate, and the pedestrian walkway is arranged at the same height as the higher side of the drainage slope.
3. The lining structure for internal drainage of a city gate tunnel-shaped corridor according to claim 2 is characterized in that: When the drainage slope is inclined toward one side of the corridor, the drainage slope is arranged alone on the bottom plate, and its two sides are respectively connected to the side walls of the gate-shaped reinforced concrete lining; or the drainage slope and the sidewalk are arranged side by side on the bottom plate, and one side of the sidewalk and the lower side of the sidewalk are respectively connected to the side walls of the gate-shaped reinforced concrete lining.
4. The lining structure for internal drainage of a city gate tunnel-shaped corridor according to claim 2, characterized in that: When the drainage slope is inclined toward both sides of the corridor, the drainage slope is divided into two sections; the higher sides of the two drainage slopes are adjacent to each other, and the lower sides are respectively connected to the side walls of the gate-shaped reinforced concrete lining; or the sidewalk is arranged between the two drainage slopes, and the lower sides of the two drainage slopes are respectively connected to the side walls of the gate-shaped reinforced concrete lining.
5. The lining structure for internal drainage of a city gate tunnel corridor according to any one of claims 1 to 4, characterized in that: The width of the bottom plate is 3-5m, and the cross-sectional area of each section of the drainage slope is 0.06-0.65m 2 .