Slope section cast-in-place comprehensive pipe gallery formwork system
By using the formwork system for cast-in-place integrated utility tunnels on sloping sections, and by incorporating positioning buffer steel bars and grouting port design, the problem of uneven concrete distribution on sloping sections was solved, thereby improving structural strength and waterproofing performance.
Patent Information
- Application Number
- CN202520442984.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In the construction of integrated utility tunnels on sloping sections, existing technologies are unable to effectively control the flow and slippage of concrete, resulting in uneven concrete distribution and affecting structural strength and waterproofing performance.
The inclined section cast-in-place integrated utility tunnel formwork system is adopted, including the bottom slab pressure plate, the outer wall formwork, the haunch corner formwork and the side wall construction joint pressure plate formwork. Combined with positioning buffer steel bars and grouting ports, the positioning buffer steel bars buffer and block the injected concrete to ensure that the concrete is evenly distributed and forms a whole.
The structural strength and waterproof performance of the integrated utility tunnel on the slope section were improved, ensuring uniform concrete pouring and enhancing the stability and connection effect of the formwork system.
Smart Images
Figure CN223867298U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of formwork, and more specifically, to a formwork system for cast-in-place integrated utility tunnels on sloping sections. Background Technology
[0002] Integrated utility tunnels are underground pipeline corridors that integrate various engineering pipelines such as electricity, communication, gas, heating, and water supply and drainage. They have the advantage of high integration and can solve the problem of urban underground pipeline layout, and have been widely promoted and applied.
[0003] The slope of a utility tunnel structure generally varies with the road surface slope. In special sections such as intersections, river crossings, and double-layer co-construction sections, the slope of the utility tunnel can become very steep. Due to the fluidity of concrete, it is necessary to control the flow and slippage of concrete during the construction of cast-in-place utility tunnels on steep slopes to ensure that the concrete slurry is evenly and fully distributed inside the formwork. In the construction of existing sloping utility tunnels, partitioning and anti-slip measures are often adopted to prevent concrete from flowing down the slope formwork. However, when the barrier effect is too strong, it is easy for the concrete poured one after another to not be completely integrated, which affects the structural concrete stress and also reduces the waterproofing capacity of the utility tunnel. When the barrier effect is too weak, it is easy to cause uneven concrete distribution, which affects the strength of the formed concrete. Utility Model Content
[0004] The purpose of this application is to provide a formwork system for cast-in-place integrated utility tunnels on sloping sections, which can use positioning buffer steel bars to buffer the injected concrete, ensure the uniformity of concrete segmented pouring, and connect the segmented concrete into a whole.
[0005] This application is implemented as follows:
[0006] This application provides a formwork system for cast-in-place integrated utility tunnels on a slope, comprising a bottom plate pressing plate above a concrete substrate, two exterior wall formworks respectively located on both sides of the bottom plate pressing plate, two haunch corner formworks respectively located on both sides of the bottom plate pressing plate, and two side wall construction joint pressing plate formworks respectively located on both sides of the bottom plate pressing plate. The bottom of the two exterior wall formworks presses against the top surface of the concrete substrate, and the bottom of the two haunch corner formworks is flush with both sides of the bottom plate pressing plate. The bottom surfaces of both sides of each side wall construction joint pressing plate formwork are connected to the top of the corresponding exterior wall formwork and haunch corner formwork on the same side. The bottom plate pressing plate is provided with multiple grouting ports spaced apart along its length and grouting port sealing slices for sealing each grouting port. Multiple positioning buffer steel bars are connected between the bottom of the bottom plate pressing plate and the concrete substrate.
[0007] In some optional embodiments, the haunch corner formwork includes a horizontal haunch corner formwork with its bottom flush with and connected to one side of the bottom plate pressure plate, a vertical haunch corner formwork arranged parallel to the exterior wall formwork, and an inclined haunch corner formwork with its two ends connected to the horizontal haunch corner formwork and the vertical haunch corner formwork, respectively. The inner wall of the inclined haunch corner formwork is provided with a plurality of connecting steel bars arranged at intervals along the length direction of the haunch corner formwork. The two ends of the connecting steel bars extend to the inner walls of the horizontal haunch corner formwork and the vertical haunch corner formwork, respectively. Each connecting steel bar is connected to at least one first haunch corner buffer steel bar and at least one second haunch corner buffer steel bar.
[0008] In some alternative implementations, each first axle angle buffer reinforcement bar is connected to each of the second axle angle buffer reinforcement bars connected to the corresponding connecting reinforcement bars.
[0009] In some alternative implementations, a plurality of first buffer steel meshes are also included, wherein each connecting steel bar has a first axle angle buffer steel bar and a second axle angle buffer steel bar connected to a first buffer steel mesh.
[0010] In some alternative implementations, a plurality of first connectors are connected between the base plate and the concrete substrate, and a plurality of second connectors are connected between the two corner templates and the corresponding side top exterior wall templates.
[0011] In some alternative implementations, a plurality of first wooden ribs are also included, spaced apart along the length of the base plate pressure plate. The bottom of each first wooden rib presses against the top surface of the base plate pressure plate and the bottom top surface of the two armpit corner templates, respectively. Each first wooden rib is connected to at least two first connectors, which are used to press the first wooden rib against the top surface of the base plate pressure plate.
[0012] In some alternative embodiments, at least two pairs of first steel pipes extending along the length of the base plate press plate are also included, the bottom of the first steel pipes pressing against the top surface of each first timber joist, and each first connector pressing a pair of first steel pipes against the top surface of the first timber joist after passing through the concrete base plate and the base plate press plate.
[0013] In some alternative embodiments, a plurality of second wooden ribs are also included, spaced apart along the length of the base plate pressure plate, with the bottom of each second wooden rib pressing against a grouting port sealing slice, and the two ends of each second wooden rib being inserted between the bottom of a pair of first steel pipes and the top of the base plate pressure plate, respectively.
[0014] In some alternative implementations, a plurality of second buffer steel meshes are also included, spaced apart along the length of the base plate pressure plate, each second buffer steel mesh being connected to a plurality of positioning buffer steel bars.
[0015] In some alternative implementations, the cross-section of the grouting port gradually increases from bottom to top.
[0016] The beneficial effects of this application are as follows: The formwork system for cast-in-place integrated utility tunnels on sloping sections provided by this application uses concrete base plates, bottom plate pressure plates, two external wall formworks, two corner formworks, and two side wall construction joint pressure plate formworks connected and enclosed to form the integrated utility tunnel casting cavity. Multiple grouting ports are provided on the bottom plate pressure plate at intervals along its length for injecting concrete for segmented casting. Multiple positioning buffer steel bars are connected between the bottom of the bottom plate pressure plate and the concrete base plate to buffer and block the injected concrete. Under the premise of ensuring uniform concrete casting, the segmented concrete can be connected into a whole, effectively improving the structural strength and waterproof performance of the formed integrated utility tunnel. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a partial structural schematic diagram of the formwork system for the cast-in-place integrated utility tunnel on the slope section provided in Embodiment 1 of this application;
[0019] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure at section AA in the middle section;
[0020] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at the BB section line;
[0021] Figure 4 This is a cross-sectional structural schematic diagram of the formwork system for the cast-in-place integrated utility tunnel on the slope section provided in Embodiment 2 of this application.
[0022] In the diagram: 100, concrete base plate; 110, base plate pressure plate; 120, exterior wall formwork; 130, haunch corner formwork; 131, horizontal haunch corner formwork; 132, vertical haunch corner formwork; 133, inclined haunch corner formwork; 134, connecting reinforcement; 135, first haunch corner buffer reinforcement; 136, second haunch corner buffer reinforcement; 137, first buffer reinforcement mesh; 140, side wall construction joint pressure plate formwork; 150, first connector; 160, second connector; 170, grouting port; 180, grouting port sealing slice; 190, positioning buffer reinforcement; 200, first timber joist; 210, first steel pipe; 220, second timber joist; 230, second buffer reinforcement mesh; 240, reinforcing reinforcement; 250, second steel pipe; 300, integrated utility tunnel grouting cavity. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] The features and performance of the cast-in-place integrated utility tunnel formwork system for slope sections of this application will be further described in detail below with reference to embodiments.
[0031] Example 1
[0032] like Figure 1 , Figure 2 and Figure 3 As shown in the embodiment of this application, a formwork system for cast-in-place integrated utility tunnels on a slope section is provided. It includes a bottom plate 110 horizontally positioned above a concrete substrate 100, two vertically arranged exterior wall formworks 120 respectively located on both sides of the bottom plate 110, two sidewall corner formworks 130 respectively located on both sides of the bottom plate 110, and two horizontally arranged sidewall construction joint formworks 140 respectively located on both sides of the bottom plate 110. The bottoms of the two exterior wall formworks 120 respectively press against the top surface of the concrete substrate 100. Each sidewall corner formwork 130 includes a horizontal sidewall corner formwork 131 flush with one side of the bottom plate 110, a vertical sidewall corner formwork 132 parallel to the exterior wall formwork 120, and an inclined sidewall corner connecting the horizontal sidewall corner formwork 131 and the vertical sidewall corner formwork 132 at both ends. Template 133, the horizontal armpit templates 131 of the two armpit templates 130 are flush with the two sides of the bottom plate 110, and the bottom surfaces of the two sides of the side wall construction joint plate template 140 respectively press against the top of the corresponding external wall template 120 and the vertical armpit template 132 on the same side. The concrete base plate 100, the two external wall templates 120, the two side wall construction joint plate templates 140, the two armpit templates 130 and the bottom plate 110 enclose to form the integrated pipe gallery grouting cavity 300. The bottom plate 110 is provided with six grouting ports 170 arranged at intervals along its length and grouting port sealing slices 180 for sealing each grouting port 170. The grouting port sealing slices 180 are in the shape of a regular square frustum. The cross-sections of the grouting ports 170 and the grouting port sealing slices 180 gradually increase from bottom to top.
[0033] The bottom of the base plate 110 and the concrete substrate 100 are connected by twelve rows of positioning buffer steel bars 190 arranged at intervals along the length of the base plate 110. Each row includes twenty positioning buffer steel bars 190 arranged at intervals along the width of the base plate 110. The inner wall of the inclined axle corner template 133 is provided with twelve connecting steel bars 134 arranged at intervals along the length of the axle corner template 130. The two ends of the connecting steel bars 134 extend to the inner walls of the horizontal axle corner template 131 and the vertical axle corner template 132, respectively. The connecting steel bars 134 are connected to the vertically arranged first axle corner buffer steel bar 135 and the horizontally arranged second axle corner buffer steel bar 136. The first axle corner buffer steel bar 135 and the corresponding second axle corner buffer steel bar 136 are connected. Each connecting steel bar 134 extends to the bottom of the base plate 110 and is connected to the base plate 110 to connect the axle corner template 130 and the base plate 110.
[0034] The top surface of the base plate 110 is provided with five first wooden ribs 200 arranged at intervals along its length. Each first wooden rib 200 extends along the width of the base plate 110. The bottom of each first wooden rib 200 abuts against the top surface of the base plate 110 and the top surface of the horizontal armpit templates 131 of the two armpit templates 130. The top surface of the five first wooden ribs 200 is provided with two pairs of first steel pipes 210 extending along the length of the base plate 110. The two pairs of first steel pipes 210 are symmetrically arranged on both sides of each grouting port 170. The bottom of the two pairs of first steel pipes 210... The bottom plate 110 and the concrete substrate 100 are connected by two rows of first connectors 150 corresponding to the two pairs of first steel pipes 210. Each row of first connectors 150 includes six first connectors 150 arranged at intervals along the length of the bottom plate 110. The two rows of first connectors 150 are two rows of first tie rods that pass through the concrete substrate 100, the bottom plate 110 and the two pairs of first steel pipes 210 respectively and press the two pairs of first steel pipes 210 downward against the top surface of each first wooden rib 200.
[0035] The vertical armpit templates 132 of the two armpit templates 130 are connected to the corresponding top outer wall templates 120 by six second connectors 160 arranged at intervals along the length of the bottom plate pressure plate 110. The vertical armpit templates 132 and the corresponding top outer wall templates 120 are respectively provided with a pair of vertically arranged second steel pipes 250. Each second steel pipe 250 extends along the length of the bottom plate pressure plate 110. The second connectors 160 are second pairs of tie rods that pass through the vertical armpit templates 132 and the corresponding top outer wall templates 120 at both ends, pass through the two pairs of second steel pipes 250, and pull the two pairs of second steel pipes 250 towards each other.
[0036] The top surface of the base plate pressure plate 110 is provided with twelve second wooden ribs 220 extending along the width direction of the base plate pressure plate 110. The top of each grouting port sealing slice 180 is provided with two second wooden ribs 220 arranged at intervals along the length direction of the base plate pressure plate 110. The bottom of each second wooden rib 220 abuts against the corresponding grouting port sealing slice 180. The tops of both ends of each second wooden rib 220 abut against the bottoms of two pairs of first steel pipes 210 respectively. The bottoms of both ends of each second wooden rib 220 abut against the tops of both sides of the base plate pressure plate 110 respectively.
[0037] During construction of the cast-in-place integrated utility tunnel formwork system for the sloping section provided in this application embodiment, structural steel bars and positioning buffer steel bars 190 are first arranged on the top of the concrete base plate 100. Then, the bottom plate pressure plate 110 is placed on top of the positioning buffer steel bars 190 for support and connection. Next, two external wall formwork 120s and two corner formwork 130s are arranged on both sides of the top of the concrete base plate 100. The connecting steel bars 134 are tied to the bottom plate pressure plate 110 with steel bars for fixation. The corresponding external wall formwork 120s and corner formwork 130s are connected and fixed using second connectors 160. That is, on the opposite side of the vertical corner formwork 132 of the external wall formwork 120s and corner formwork 130s, structural steel bars and positioning buffer steel bars 190 are arranged. A pair of second steel pipes 250 extending along the length of the base plate 110 are used, and second pairs of tie rods arranged at intervals along the length of the base plate 110 are passed through the outer wall formwork 120, the corner formwork 130, and the two pairs of second steel pipes 250 and tightened. Then, five first wooden ribs 200 arranged at intervals along the length of the base plate 110 are arranged on the base plate 110, so that the bottom of each first wooden rib 200 abuts against the top surface of the base plate 110 and the top surface of the horizontal corner formwork 131 of the two corner formworks 130. The base plate 110 is connected and fixed to the concrete substrate 100 using first connectors 150, that is, two pairs of tie rods are set on the top surface of the five first wooden ribs 200. The first steel pipe 210, extending along the length of the base plate pressure plate 110, has two rows of first tie rods passed through the concrete base plate 100, the base plate pressure plate 110, and the two pairs of first steel pipes 210 respectively, and then tightened. Concrete is then injected and vibrated sequentially from low to high into the grouting port 170 and the side wall construction joint between the outer wall formwork 120 and the corner formwork 130. First, concrete is injected and vibrated into the grouting port 170. Once the grouting port 170 is filled with concrete, it is sealed with a grouting port sealing piece 180. Next, concrete is injected and vibrated into the side wall construction joint between the outer wall formwork 120 and the corner formwork 130 on both sides of the grouting port 170. After the soil fills the side wall construction joint between the outer wall formwork 120 and the armpit corner formwork 130, the bottom surfaces of the two sides of the side wall construction joint pressure plate formwork 140 are used to press against the top of the corresponding side outer wall formwork 120 and the top of the vertical armpit corner formwork 132. After each grouting port sealing slice 180 seals the corresponding grouting port 170, two second wooden joists 220 arranged at intervals along the length of the bottom plate pressure plate 110 are pressed against the top of each grouting port sealing slice 180. The two ends of each second wooden joist 220 are inserted into the bottom of two pairs of first steel pipes 210, and the bottom ends of each second wooden joist 220 press against the top of both sides of the bottom plate pressure plate 110, thus completing the concrete pouring operation.
[0038] The formwork system for cast-in-place integrated utility tunnels on a slope section provided in this application embodiment forms a grouting cavity 300 by setting up a concrete base plate 100, two outer wall formworks 120, two side wall construction joint pressure plate formworks 140, two haunch corner formworks 130, and a bottom plate pressure plate 110. The construction joints between the outer wall formworks 120 and the side wall construction joint pressure plate formworks 140 and the grouting ports 170 provided on the bottom plate pressure plate 110 are used to inject concrete into the grouting cavity 300. At the same time, multiple rows of positioning buffer steel bars 190 are connected between the bottom of the bottom plate pressure plate 110 and the concrete base plate 100, which are spaced apart along the length of the bottom plate pressure plate 110. The positioning buffer steel bars 190 can block and buffer the concrete injected into the grouting cavity 300, ensuring that the concrete injected into the grouting cavity 300 can be fully and evenly filled under the action of vibration, and ensuring that the concrete sections injected in segments are connected to form a whole.
[0039] The inner walls of the two inclined axle corner templates 133 are provided with twelve connecting steel bars 134 arranged at intervals along the length of the axle corner template 130. The two ends of the connecting steel bars 134 extend to the inner walls of the horizontal axle corner template 131 and the vertical axle corner template 132, respectively. The connecting steel bars 134 are connected to the vertically arranged first axle corner buffer steel bars 135 and the horizontally arranged second axle corner buffer steel bars 136. The first axle corner buffer steel bars 135 and the corresponding second axle corner buffer steel bars 136 are connected, which can be used to extend into the integrated pipe gallery grouting cavity 300 to buffer the injected concrete, ensuring that the concrete distribution at the corner of the integrated pipe gallery grouting cavity 300 is uniform. Each connecting steel bar 134 extends to the bottom of the bottom plate pressure plate 110 and is connected to the bottom plate pressure plate 110. The connecting steel bars 134 can be used to connect the bottom plate pressure plate 110 and the axle corner template 130 to improve the structural strength and stability of the template system.
[0040] In addition, the grouting port sealing slice 180 is a regular square frustum shape. The cross-sections of the grouting port 170 and the grouting port sealing slice 180 gradually increase from bottom to top, which can ensure that the grouting port sealing slice 180, whose cross-section gradually increases from bottom to top, can stably be inserted into and seal the grouting port 170, thus preventing the concrete in the integrated pipe gallery grouting cavity 300 from overflowing from the grouting port 170.
[0041] In other alternative embodiments, the number of grouting ports 170 and corresponding grouting port sealing slices 180 provided on the bottom plate pressure plate 110 can be two, three, four, five or more.
[0042] In other alternative embodiments, the number of positioning buffer steel bars 190 provided at the bottom of the base plate pressure plate 110 can be adjusted according to the size of the base plate pressure plate 110.
[0043] In other alternative embodiments, the number of the first axilla buffer steel bar 135 and the second axilla buffer steel bar 136 connected by the connecting steel bar 134 may be two or more.
[0044] In other alternative embodiments, the number of first wooden ribs 200 provided on the top surface of the bottom plate pressure plate 110 may be two, three, four, five or more.
[0045] In other alternative embodiments, the number of first connecting members connecting the base plate 110 and the concrete substrate 100 can be adjusted according to the size of the base plate 110.
[0046] In other alternative embodiments, the number of second connectors 160 connecting the vertical armpit corner template 132 and the corresponding side top outer wall template 120 can also be adjusted according to the size of the bottom plate pressure plate 110.
[0047] In other alternative embodiments, the number of second wooden joists 220 provided on the top of each grouting port sealing slice 180 may be one, three or more.
[0048] Example 2
[0049] like Figure 4 As shown, this application also provides a formwork system for cast-in-place integrated utility tunnels on a slope, which has a structure that is roughly the same as the formwork system for cast-in-place integrated utility tunnels on a slope provided in Embodiment 1. The difference is that in this embodiment, each first axle corner buffer steel bar 135 and the corresponding second axle corner buffer steel bar 136 are connected to a first buffer steel bar mesh 137, and each row of positioning buffer steel bars 190 is connected to a second buffer steel bar mesh 230. The two ends of each second buffer steel bar mesh 230 are respectively connected to two corresponding first buffer steel bar meshes 137 by five reinforcing steel bars 240 arranged at intervals along the height direction.
[0050] The formwork system for cast-in-place integrated utility tunnels on a slope section provided in this application embodiment uses a first buffer steel mesh 137 connected to each first axle angle buffer steel bar 135 and the corresponding second axle angle buffer steel bar 136, and a second buffer steel mesh 230 connected to each row of positioning buffer steel bars 190. The first buffer steel mesh 137 and the second buffer steel mesh 230, which are arranged at intervals along the length of the bottom plate pressure plate 110, can buffer the concrete injected into the integrated utility tunnel grouting cavity 300, ensuring that the concrete is evenly distributed while ensuring that the concrete sections of the segmented grouting are connected to form a whole.
[0051] Each second buffer steel mesh 230 is connected to two corresponding first buffer steel meshes 137 at both ends by five reinforcing steel bars 240 arranged at intervals along the height direction. The reinforcing steel bars 240 can be used to connect the first buffer steel meshes 137 and the second buffer steel meshes 230 into a whole, ensuring the overall structural strength of the first buffer steel meshes 137 and the second buffer steel meshes 230 and their buffering performance on concrete.
[0052] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
Claims
1. A formwork system for cast-in-place integrated utility tunnels on sloping sections, characterized in that, It includes a bottom plate pressure plate located above a concrete substrate, two exterior wall templates located on both sides of the bottom plate pressure plate, two haunch corner templates located on both sides of the bottom plate pressure plate, and two side wall construction joint pressure plate templates located on both sides of the bottom plate pressure plate. The bottom of the two exterior wall templates presses against the top surface of the concrete substrate. The bottom of the two haunch corner templates is flush with both sides of the bottom plate pressure plate. The bottom surfaces of both sides of each side wall construction joint pressure plate template are connected to the top of the corresponding exterior wall template and the haunch corner template on the same side. The bottom plate pressure plate has multiple grouting ports spaced apart along its length and grouting port sealing slices for sealing each grouting port. Multiple positioning buffer steel bars are connected between the bottom of the bottom plate pressure plate and the concrete substrate.
2. The formwork system for cast-in-place integrated utility tunnels on sloping sections according to claim 1, characterized in that, The armpit corner template includes a horizontal armpit corner template whose bottom is flush with and connected to one side of the base plate pressure plate, a vertical armpit corner template arranged parallel to the outer wall template, and an inclined armpit corner template whose two ends are respectively connected to the horizontal armpit corner template and the vertical armpit corner template. The inner wall of the inclined armpit corner template is provided with a plurality of connecting steel bars arranged at intervals along the length direction of the armpit corner template. The two ends of the connecting steel bars extend to the inner walls of the horizontal armpit corner template and the vertical armpit corner template, respectively. Each connecting steel bar is connected to at least one first armpit corner buffer steel bar and at least one second armpit corner buffer steel bar.
3. The formwork system for cast-in-place integrated utility tunnels on a slope section according to claim 2, characterized in that, Each of the first axilla angle buffer bars is connected to each of the second axilla angle buffer bars that are connected to the corresponding connecting bars.
4. The formwork system for cast-in-place integrated utility tunnels on sloping sections according to claim 3, characterized in that, It also includes multiple first buffer steel mesh panels, and each of the first and second axle angle buffer steel bars corresponding to the connecting steel bars is connected to one of the first buffer steel mesh panels.
5. The formwork system for cast-in-place integrated utility tunnels on a slope section according to claim 1, characterized in that, The base plate pressure plate is connected to the concrete substrate by a plurality of first connectors, and the two axle corner templates are respectively connected to the corresponding side of the top outer wall template by a plurality of second connectors.
6. The formwork system for cast-in-place integrated utility tunnels on sloping sections according to claim 5, characterized in that, It also includes a plurality of first wooden ribs arranged at intervals along the length of the base plate pressure plate. The bottom of each first wooden rib presses against the top surface of the base plate pressure plate and the bottom top surface of the two armpit corner templates. Each first wooden rib is connected to at least two first connecting members, which are used to press the first wooden rib against the top surface of the base plate pressure plate.
7. The formwork system for cast-in-place integrated utility tunnels on a slope section according to claim 6, characterized in that, It also includes at least two pairs of first steel pipes extending along the length of the base plate pressure plate, the bottom of the first steel pipes pressing against the top surface of each of the first timber joists, and each of the first connectors passing through the concrete substrate and the base plate pressure plate pressing a pair of the first steel pipes against the top surface of the first timber joists.
8. The formwork system for cast-in-place integrated utility tunnels on a slope section according to claim 7, characterized in that, It also includes a plurality of second wooden ribs arranged at intervals along the length of the base plate pressure plate, the bottom of each second wooden rib pressing against a grouting port sealing slice, and the two ends of each second wooden rib being inserted between the bottom of a pair of first steel pipes and the top of the base plate pressure plate.
9. The formwork system for cast-in-place integrated utility tunnels on sloping sections according to claim 1, characterized in that, It also includes multiple second buffer steel meshes arranged at intervals along the length of the bottom plate pressure plate, each of the second buffer steel meshes being connected to multiple positioning buffer steel bars.
10. The formwork system for cast-in-place integrated utility tunnels on a slope section according to claim 1, characterized in that, The cross-section of the grouting port gradually increases from bottom to top.