Novel multifunctional cantilever type retaining wall structure
By setting up box-type pipeline bins and maintenance wells in the cantilever retaining wall structure, using self-weight and friction to resist thrust, the problem of large space in the cantilever retaining wall is solved, and the stability and safety of the retaining wall are achieved Improvement of performance and saving of engineering investment.
Patent Information
- Application Number
- CN202420351087.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-26
AI Technical Summary
During the construction of municipal overpasses, the existing cantilever retaining wall structure occupies a large area of ground space, and when the retaining wall is high, the use of wall heels and wall toes further squeezes out the underground pipeline laying space, resulting in waste of projects and increased investment .
Design a multi-functional cantilever retaining wall structure, box-type pipeline bins are installed on both sides of the vertical arm, and maintenance wells are installed on the top, which uses self-weight and friction at the bottom of the foundation to resist thrust, reduce dependence on wall heels and wall toes, and combines with vertical arm It forms a retaining wall with pipeline warehouses, saving engineering investment.
Maximize the use of road cross-section resources, improve the stability and safety of retaining walls, reduce project investment, avoid the need to set large-size wall heels and wall toes, realize the effective combination of underground pipelines and retaining walls, and save The land area of the city and city roads.
Smart Images
Figure CN222252201U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of roadbed support and protection, in particular to a novel multifunctional cantilever retaining wall structure. Background Art
[0002] Municipal pipe networks are generally arranged under the pavement structure of urban roads. Various pipelines such as rainwater, sewage, tap water, recycled water, gas, electricity, communications, hot water, street light cables, etc. maintain the energy supply and orderly operation of the entire city. In today's traffic congestion, the construction of municipal overpasses can greatly improve traffic conditions. In the process of municipal overpass construction, in order to save land, retaining wall structures are usually used instead of roadbed slopes to reduce the area occupied by roads. Cantilever retaining walls are the most commonly used retaining wall structures in urban overpasses. Figure 3 As shown, cantilever retaining walls are generally constructed of reinforced concrete and consist of vertical arms, wall heels, wall toes and tenons. The stability of the wall body is mainly maintained by the wall heels, wall toes and the backfill behind the wall. The tenons are generally set when the sliding calculation of the retaining wall does not meet the stability requirements, and are generally set at the base of the retaining wall with a higher height. When the retaining wall is higher, the wall heels and wall toes will adopt larger sizes to protect the stability and safety of the retaining wall structure, but the large-sized retaining wall structure further squeezes the space for laying underground pipelines in municipal roads. In the process of building municipal overpasses, the existing municipal pipelines are usually relocated to other roads, resulting in a large waste of engineering. Therefore, there is an urgent need for a cantilever retaining wall structure that can combine underground pipelines with retaining wall structures to reduce the floor space. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a cantilever retaining wall structure that can combine underground pipelines with a retaining wall structure and reduce floor space.
[0004] In order to achieve the above object, the utility model is implemented through the following technical solutions:
[0005] A novel multifunctional cantilever retaining wall structure comprises vertical arms arranged on both sides of a main motor vehicle lane, a cushion layer is arranged at the bottom of the vertical arms, box-type pipeline bunkers are arranged on the outside of the vertical arms, inspection wells are arranged at intervals on the tops of the pipeline bunkers, and railings are arranged on the tops of the vertical arms.
[0006] Furthermore, the inspection well is arranged at the wheel guard belt on the side of the vertical arm.
[0007] Compared with the prior art, the utility model has the following beneficial effects:
[0008] The vertical arm of the utility model is combined with the pipeline bin, and the box-shaped pipeline bin can accommodate a variety of municipal pipeline networks, making the maximum intensive use of municipal road cross-section resources. At the same time, the pipeline bin can use its own weight and the friction force at the bottom of the foundation to resist the thrust of the retaining wall, which can effectively improve the stress state of the cantilever retaining wall, making the retaining wall more stable and safer. The retaining wall no longer has large wall heels and toes, saving engineering investment. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of the utility model;
[0010] Figure 2 This is a schematic diagram of the application of the utility model in a municipal overpass project;
[0011] Figure 3 This is a structural diagram of a traditional cantilever retaining wall.
[0012] Reference numerals:
[0013] 1- vertical arm, 2- handrail, 3- cushion layer, 4- pipeline warehouse, 5- manhole barrel, 6- manhole cover, 7- main motor vehicle lane, 8- auxiliary lane, 9- wall toe, 10- wall heel. DETAILED DESCRIPTION
[0014] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0015] like Figure 1 and Figure 2 As shown, a novel multifunctional cantilever retaining wall structure comprises vertical arms 1 arranged on both sides of a main motor vehicle lane 7, a cushion layer 3 is arranged at the bottom of the vertical arms 1, box-type pipeline bins 4 are arranged on the outside of the vertical arms 1, inspection wells are arranged at intervals on the tops of the pipeline bins 4, and a railing 2 is arranged on the top of the vertical arms 1.
[0016] like Figure 2 As shown, the inspection well is set at the wheel guard belt on the side of the vertical arm 1. The inspection well is set up using the wheel guard belt on the side of the auxiliary road 8 under the vertical arm 1, which can avoid temporarily occupying the auxiliary road 8 when opening the manhole cover for maintenance, and also avoid setting the manhole cover on the roadway to endanger driving safety. For a multi-bin structure with many pipelines, the inspection well is larger in size. In order to facilitate workers to go down the well, the pipeline bin 4 can be extended forward to the area under the bridge.
[0017] The construction steps of this utility model are as follows:
[0018] (1) After accurate layout, excavate the foundation pit, pour the cement concrete cushion layer 3 of the retaining wall, pour the structural bottom plate and reserve the vertical wall reinforcement of the vertical arm 1 and the pipeline warehouse 4.
[0019] (2) After the structural base plate has formed strength, tie the vertical arm 1 and the vertical wall reinforcement, support the formwork and cast the vertical arm 1 and the vertical wall. The vertical arm 1 is first cast to the top surface of the pipeline warehouse 4, and the vertical arm 1 reinforcement is reserved.
[0020] (3) After the support is set up for the pipeline warehouse 4, the top plate of the pipeline warehouse 4 is constructed by tying steel bars. When constructing the top plate, pay attention to reserving holes at the location of the inspection well.
[0021] (4) After the pipeline warehouse 4 has formed strength, continue to construct the vertical retaining wall arm 1, construct the maintenance well barrel 5, and install the maintenance well cover 6.
[0022] (5) After the retaining wall has formed its overall strength, backfill construction is carried out, retaining wall railings 2 are constructed, and the motor vehicle road surface structure is paved.
[0023] After the construction is completed, the pipeline bin 4 is combined with the vertical arm 1 to form a retaining wall. The pipeline bin 4 can use its own weight and the friction force at the bottom of the foundation to resist the thrust of the retaining wall, so that the retaining wall structure no longer needs to be provided with a large wall heel 10 and wall toe 9, saving engineering investment. The pipeline bin 4 can adopt a single bin, two bins or multiple bins structure, which can be determined according to the number of stored pipelines and the stability of the retaining wall.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A new multifunctional cantilever retaining wall structure, characterized in that: The invention comprises vertical arms (1) arranged on both sides of a main motor vehicle lane (7), a cushion layer (3) being arranged at the bottom of the vertical arms (1), box-shaped pipeline bins (4) being arranged on the outside of the vertical arms (1), inspection wells being arranged at intervals on the tops of the pipeline bins (4), and a handrail (2) being arranged on the tops of the vertical arms (1).
2. The novel multifunctional cantilever retaining wall structure according to claim 1 is characterized in that: The inspection well is arranged at the wheel guard belt on the side of the vertical arm (1).