Cast-in-place assembly type rigid landfill
By designing a cast-in-place prefabricated rigid landfill, problems such as temperature deformation sensitivity, difficulty in formwork construction, and strict seepage control during construction were solved, resulting in optimized construction process, shortened construction period, and improved seismic performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI TONGYUAN ENVIRONMENT ENERGY SAVING CO LTD
- Filing Date
- 2025-02-20
- Publication Date
- 2026-04-24
AI Technical Summary
Existing rigid landfills face challenges during construction, including sensitivity to temperature deformation, difficulty in formwork construction, high risks, complex construction management, and stringent requirements for seepage control.
The design adopts a cast-in-place prefabricated rigid landfill, which includes a cast-in-place base slab, cast-in-place bottom sidewalls, connecting bars, and prefabricated sidewalls. Combined with technologies such as pre-embedded cooling pipes, flexible materials, and geomembranes, the construction process and overall stress are optimized.
It simplifies the processing and transportation of prefabricated components, optimizes on-site construction, shortens the construction period, improves construction quality and seismic performance, reduces construction risks, and enhances seepage prevention performance.
Smart Images
Figure CN224161110U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of rigid landfills, specifically to cast-in-place prefabricated rigid landfills. Background Technology
[0002] The main structure of a rigid landfill consists of landfill units constructed from materials such as reinforced concrete. These units possess excellent sealing and structural strength, effectively preventing leachate leakage and pollution of the surrounding environment by landfill waste. Its bottom and surrounding walls have strict anti-seepage designs, employing materials such as high-density polyethylene (HDPE) geomembranes, and the thickness and strength of the concrete structural walls are carefully designed, acting like a robust fortress to firmly lock in hazardous waste and prevent harmful substances from seeping into the soil and groundwater.
[0003] In landfill operations, rigid landfills can be zoned for different types of hazardous waste. They can divide landfill areas based on factors such as the chemical properties and physical form of the waste, thereby preventing reactions between incompatible wastes that could create new environmental risks. Simultaneously, during operation and management, leachate within the landfill can be effectively collected and treated. The leachate is collected through a specialized system and sent to treatment facilities, where it undergoes a series of physical, chemical, and biological treatment processes to ensure that the concentration of hazardous substances is reduced to safe standards before discharge or reuse, playing a crucial environmental protection role in the final disposal of hazardous waste.
[0004] However, existing rigid landfills, due to storage and operational needs, have deep and narrow individual compartments with high reinforcement and high rigidity, which brings the following problems to construction: 1. They are sensitive to temperature deformation and difficult to control cracks; 2. Formwork is difficult and risky during construction; 3. Construction management is difficult, and steel bar binding and concrete pouring are time-consuming and labor-intensive; 4. Storage requirements are high, and seepage control is strict and quality requirements are high. Utility Model Content
[0005] The purpose of this application is to address the following problems encountered by existing rigid landfills due to their narrow, deep, highly reinforced, and rigid single-cell spaces, which pose challenges to construction for storage and operation: 1. Sensitivity to temperature deformation and difficulty in crack control; 2. Difficulty in formwork erection and high risk during construction; 3. Difficult construction management, with time-consuming and labor-intensive steel reinforcement binding and concrete pouring; 4. High storage requirements, strict seepage control, and high quality requirements. The application aims to provide a cast-in-place prefabricated rigid landfill.
[0006] The technical solution adopted in this application is as follows: a cast-in-place prefabricated rigid landfill, including a cast-in-place base slab, a bottom cast-in-place sidewall provided at the upper end of the cast-in-place base slab, a connecting bar provided at the upper end of the bottom cast-in-place sidewall, a prefabricated sidewall provided at the upper end of the connecting bar, the upper end of the connecting bar being located inside the prefabricated sidewall, and a cast-in-place node provided at the connection between the prefabricated sidewalls.
[0007] By adopting the above technical solutions and through the above design, the upper prefabricated components are simple in form, the template is simple, and the processing and transportation are convenient; the on-site construction process is optimized, the construction period is shortened, and the quality is controllable; the overall stress is reasonable and the seismic performance is good.
[0008] In a preferred embodiment, the interior of the prefabricated sidewall is provided with a pre-embedded cooling pipe, and the interior of the prefabricated sidewall is filled with a flexible material.
[0009] By adopting the above technical solutions, the plasticity of the sidewalls can be increased, and they can also be used as temperature regulation pipes during operation and blasting pipes for later demolition of landfills.
[0010] In a preferred embodiment, the height of the bottom cast-in-place sidewall is set to 500 cm.
[0011] By adopting the above technical solution, it is not only convenient to pour the joint between the prefabricated upper sidewall and the cast-in-place base slab, but also to avoid leaving the construction joint at the junction of the cast-in-place base slab and the prefabricated sidewall, which would affect the seepage prevention performance of the weak stress point.
[0012] In a preferred embodiment, the prefabricated sidewall is configured as four pieces, each weighing less than 0.8T.
[0013] By adopting the above technical solution, hoisting and support are convenient, and the dimensions are also convenient for transportation.
[0014] In a preferred embodiment, the inner wall of the bottom cast-in-place sidewall is covered with a waterproof membrane.
[0015] By adopting the above technical solution and laying it in advance, the workload during subsequent installation is reduced and work efficiency is improved.
[0016] In a preferred embodiment, the track and the awning embedded parts at the top of the prefabricated sidewall can be formed in one piece at the factory along with the prefabricated sidewall.
[0017] By adopting the above technical solution, the accuracy of pre-embedding can be guaranteed through pre-assembly and pre-embedding.
[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0019] In this application, the upper precast components are simple in type, the template is simple, and the processing and transportation are convenient; the on-site construction process is optimized, the construction period is shortened, and the quality is controllable; the overall stress is reasonable, and the seismic performance is good. The bottom cast-in-place sidewalls and cast-in-place base slab are not only key components that bear vertical loads, but also basic components that resist horizontal loads such as seismic forces. They are the most important members in the rigid landfill structure and have a significant impact on the seismic performance of the entire structure. This part adopts cast-in-place construction to ensure the integrity of the entire structure. Attached Figure Description
[0020] Figure 1 This is a front structural diagram of the prefabricated rigid landfill in this application;
[0021] Figure 2 This is a schematic diagram of the front structure of the bottom cast-in-place sidewall in this application;
[0022] Figure 3 This is a schematic diagram of the planar structure of the prefabricated sidewall in this application.
[0023] The markings in the diagram are: 1. Cast-in-place base slab; 2. Prefabricated sidewall; 3. Cast-in-place node; 4. Embedded cooling pipe; 5. Bottom cast-in-place sidewall; 6. Connecting reinforcement; 7. Flexible material. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] Reference Figure 1-3 The cast-in-place prefabricated rigid landfill includes a cast-in-place base slab 1, a bottom cast-in-place sidewall 5 at the upper end of the base slab 1, a connecting bar 6 at the upper end of the bottom cast-in-place sidewall 5, a prefabricated sidewall 2 at the upper end of the connecting bar 6, and the upper end of the connecting bar 6 is located inside the prefabricated sidewall 2. Cast-in-place nodes 3 are provided at the connection between the prefabricated sidewalls 2. Through the above design, the upper prefabricated components are simple in type, the formwork is simple, and the processing and transportation are convenient; the on-site construction process is optimized, the construction period is shortened, and the quality is controllable; the overall stress is reasonable and the seismic performance is good.
[0026] Reference Figure 3 The prefabricated sidewall 2 is equipped with a pre-embedded cooling pipe 4 and is filled with flexible material 7, which can increase the plasticity of the sidewall and can also be used as a temperature regulation pipe during operation and a bursting pipe for later demolition of the landfill.
[0027] Reference Figure 1-3 The height of the bottom cast-in-place sidewall 5 is set at 500 cm, which facilitates the post-pouring joint between the upper prefabricated sidewall 2 and the cast-in-place base slab 1, and also avoids construction joints being left at the junction of the cast-in-place base slab 1 and the prefabricated sidewall 2, which would affect the seepage prevention performance of the weak stress points.
[0028] Reference Figure 1 The prefabricated sidewall 2 is set up in four pieces, with the weight of each piece controlled within 0.8T, which facilitates hoisting and support, and the size is also convenient for transportation.
[0029] Reference Figure 1-2 The inner wall of the bottom cast-in-place side wall 5 is covered with a waterproof membrane. By laying it in advance, the workload during subsequent installation is reduced and the work efficiency is improved.
[0030] Reference Figure 1-3 The track and canopy embedded parts at the top of the prefabricated side wall 2 can be formed in the factory in one go along with the prefabricated side wall 2. The embedding accuracy can be guaranteed by pre-assembly and embedding in advance.
[0031] The implementation principle of the cast-in-place prefabricated rigid landfill embodiment of this application is as follows:
[0032] The precast components in the upper part are simple in type, with a single formwork, making processing and transportation convenient; the on-site construction process is optimized, the construction period is shortened, and the quality is controllable; the overall stress is reasonable, and the seismic performance is good. The bottom cast-in-place sidewall 5 and cast-in-place base slab 1 are not only key components that bear vertical loads, but also basic components that resist horizontal loads such as seismic forces. They are the most important members in the rigid landfill structure and have a significant impact on the seismic performance of the entire structure. This part adopts cast-in-place construction to ensure the integrity of the entire structure.
[0033] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A cast-in-place prefabricated rigid landfill, comprising a cast-in-place base slab (1), characterized in that: The upper end of the cast-in-place base slab (1) is provided with a bottom cast-in-place side wall (5), the upper end of the bottom cast-in-place side wall (5) is provided with a connecting bar (6), the upper end of the connecting bar (6) is provided with a prefabricated side wall (2), the upper end of the connecting bar (6) is located inside the prefabricated side wall (2), and a cast-in-place node (3) is provided at the connection between the prefabricated side walls (2).
2. The cast-in-place prefabricated rigid landfill as described in claim 1, characterized in that: The prefabricated sidewall (2) is provided with a pre-embedded cooling pipe (4), and the interior of the prefabricated sidewall (2) is filled with a flexible material (7).
3. The cast-in-place prefabricated rigid landfill as described in claim 1, characterized in that: The height of the bottom cast-in-place sidewall (5) is set to 500 cm.
4. The cast-in-place prefabricated rigid landfill as described in claim 1, characterized in that: The prefabricated sidewall (2) is set into four pieces, and the weight of each piece is controlled within 0.8T.
5. The cast-in-place prefabricated rigid landfill as described in claim 1, characterized in that: The inner wall of the bottom cast-in-place sidewall (5) is covered with a waterproof membrane.
6. The cast-in-place prefabricated rigid landfill as described in claim 1, characterized in that: The track and the awning embedded parts at the top of the prefabricated sidewall (2) can be formed in the factory in one step along with the prefabricated sidewall (2).