A precise resource utilization structure based on construction waste and a utilization method thereof

Abstract

The application discloses a kind of based on construction waste precise resource utilization structure and its utilization method, belong to construction waste utilization technical field.The application includes fixed transfer system, the fixed transfer system is by topsoil area, engineering spoil area, demolition waste area, engineering waste area and decoration waste area composition.Its steps are:step one: in the early stage of project construction first investigation, formulate corresponding plan;Step two: the project is staged, zoned construction, reduce engineering spoil production;Step three: set fixed turnover site in the scope of land, demarcate topsoil, general earthwork, rock's stacking area;The application can be used as the utilization, disposal mode of bulk construction waste in the aspect of precise utilization of construction waste, so as to reduce the random stacking and abandonment of construction waste in the site, and also avoid the situation that earthwork has no reasonable direction after the start of the project, is randomly stacked and abandoned.Precise utilization can reduce the secondary transport of construction waste.

Description

Technical Field

[0001] This invention relates to the field of construction waste utilization technology, and more specifically, to a structure and method for precise resource utilization of construction waste. Background Technology

[0002] Construction waste is a general term encompassing engineering spoil, engineering mud, construction waste, demolition waste, and renovation waste. It includes waste soil, materials, and other waste generated during the construction, expansion, renovation, and demolition of various buildings, structures, and pipelines, as well as during residential home decoration and renovation. It does not include construction waste that has been inspected and identified as hazardous waste.

[0003] Construction waste refers to the excavated soil generated during the foundation excavation of various buildings, structures, and pipelines. Construction mud is the mud generated during drilling pile foundation construction, diaphragm wall construction, slurry shield tunneling, horizontal directional drilling, and slurry pipe jacking. Construction waste refers to the waste materials generated during the construction of various buildings and structures. Demolition waste refers to the waste materials generated during the construction of various buildings and structures. Decoration waste refers to the waste generated during the decoration and renovation of houses. According to current laws and regulations, construction waste should be treated and converted into useful materials to improve its utilization efficiency.

[0004] With the acceleration of urbanization, the rapid development of the construction industry has been accompanied by an increasing amount of construction waste. The vast majority of construction waste is dumped or landfilled in the open without any sorting or treatment. This indiscriminate dumping can easily create safety hazards, while also consuming a large amount of land. Furthermore, the spillage, dust, and sand flying during the transportation and dumping process cause serious environmental pollution and soil erosion, reducing soil quality.

[0005] Construction waste is "gold" in the wrong place; discarding it directly without utilization is a waste of resources. After sorting, removing, or crushing, most construction waste can be reused as recycled resources. For example, waste bricks, stones, and concrete, after being crushed, can be used as sand in masonry mortar and plastering mortar, and can also be used to make paving bricks, lattice bricks, and other building materials. Waste steel bars, waste wires, and waste electrical wires, after being sorted, collected, and recycled, can be reprocessed into steel of various specifications. Waste bamboo and wood can be used to manufacture artificial wood. All of these advantages make the recycling of construction waste highly efficient, low in production costs, and environmentally and economically beneficial.

[0006] The main ways to utilize construction waste are direct use and recycling of building materials. Excavated soil from foundation work is mostly used for road construction, pile foundation filling, and foundation work; construction mud is mostly filtered and dried, and its utilization is aligned with that of the excavated soil. Waste concrete and bricks generated during construction are used to produce coarse and fine aggregates; waste steel, steel bars, and other waste metal materials can be directly reused or recycled. Waste bricks and tiles from demolition waste are used to produce aggregates. For waste wood, timber that is not significantly damaged can be directly reused for reconstruction; severely damaged wooden components can be used as raw materials for recycled wood-based panels or papermaking. Waste asphalt mixture from road surfaces can be used directly in appropriate proportions for recycled asphalt concrete, and waste road concrete can be processed into recycled aggregates for preparing recycled concrete. Waste glass, waste plastics, and waste ceramics generated during renovation are utilized according to the specific circumstances.

[0007] Therefore, based on years of extensive construction management experience in the construction industry, the applicant proposes a precise method for the disposal of construction waste, in order to achieve a more practical purpose. Summary of the Invention

[0008] 1. The technical problem that the invention aims to solve

[0009] To address the shortcomings and deficiencies of existing technologies, this invention provides a structure and method for the precise resource utilization of construction waste. This invention can serve as a method for the utilization and disposal of large quantities of construction waste, thereby reducing the indiscriminate dumping of construction waste on-site and preventing the situation of soil being dumped haphazardly after construction begins. Through precise utilization, secondary transportation of construction waste can be reduced.

[0010] 2. Technical Solution

[0011] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0012] The present invention provides a structure for precise resource utilization of construction waste, including a fixed transfer system, which consists of a topsoil area, a construction waste area, a demolition waste area, a construction waste area, and a renovation waste area.

[0013] A method for utilizing construction waste based on a precise resource utilization structure, characterized by the following steps:

[0014] Step 1: Conduct preliminary research at the initial stage of project construction, and calculate the amount of construction waste generated based on the geological survey report, main design, construction technology, etc., as well as the quantities of topsoil, ordinary earthwork, and rockwork, and formulate corresponding plans.

[0015] Step 2: Develop an energy-saving and environmentally friendly green construction plan based on the project type, carry out phased and zoned construction of the project, and reduce the generation of construction waste by optimizing construction technology and procedures;

[0016] Step 3: According to the timeline, set up a fixed temporary site within the occupied area and delineate the storage areas for topsoil, ordinary earthwork, and rock.

[0017] Step 4: Initially determine the utilization direction, divide the work into zones, and separately strip, stockpile, and protect the topsoil, then send the topsoil to the topsoil turnover location; classify the construction site by layer according to the current situation data, and strip, stockpile, protect, and utilize the topsoil or cultivated soil in the top 30cm to 50cm layer.

[0018] Step 5: Excavate the soil below the topsoil and utilize it nearby. Stockpile the soil that can be backfilled in the site according to the process and give priority to backfilling the excavated site. Send the part of the ordinary soil that cannot be backfilled to the ordinary soil transportation site.

[0019] Step Six: Excess earthwork is tested against its intended use, and the use direction is accurately determined based on the test results;

[0020] Step 7: Rationally transport construction waste, reserving enough for its own use according to the design, and making precise use of any excess;

[0021] Step 8: Construct a dynamic monitoring system for the recycling of construction waste and establish a network connection with relevant projects;

[0022] Furthermore, the fixed transfer system is measured during construction, with external barriers and protective measures, as well as partitions and top protection, and is marked, with the stacking height not exceeding 3m.

[0023] Furthermore, based on the existing data, the construction site is classified by layer, and the topsoil or cultivated soil in the top 30cm to 50cm layer is stripped, stockpiled, protected, and utilized.

[0024] Furthermore, the soil below the topsoil layer is the focus of attention, as it can be used for roadbed filling, foundation backfilling, seepage prevention layers, isolation layers, soil conditioning, micro-topography, and landscaping, especially in areas behind the soil layer; the topsoil or weathered rock below the topsoil is considered ordinary soil, most of which can be used as backfill soil, and soil-based construction waste can be used as brick-making and road engineering materials.

[0025] Furthermore, it can be combined with online platforms and mobile applications for real-time dynamic monitoring, forming a networked interaction with similar related projects.

[0026] Furthermore, timely utilization of construction waste after its generation reduces on-site storage or disposal costs. Excess soil that cannot be backfilled can be precisely utilized, along with surplus topsoil, for municipal parks, wasteland remediation, and rooftop gardens.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0029] This invention provides a precise utilization method for large-scale construction waste, reducing the indiscriminate dumping of construction waste on-site and preventing the haphazard dumping of excavated soil after construction begins. Precise utilization also reduces the need for secondary transportation of construction waste. Attached Figure Description

[0030] Figure 1 This is a diagram illustrating the area division of the fixed transfer system of the present invention.

[0031] Figure 2 This is a cross-sectional view of the soil layers according to the present invention.

[0032] In the diagram: 1. Fixed transfer system; 11. Topsoil area; 12. Construction waste area; 13. Demolition waste area; 14. Construction waste area; 15. Renovation waste area. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] Example 1

[0035] from Figure 1-2 As can be seen, the structure based on the precise resource utilization of construction waste in this embodiment includes a fixed transfer system 1, which consists of a topsoil area 11, a construction waste area 12, a demolition waste area 13, a construction waste area 14, and a renovation waste area 15.

[0036] Construction waste is classified according to the construction process, and different types of waste are transferred and stored separately according to the process. Fixed transfer sites are set up according to the process, and the waste is turned over in a precise manner with each process. Each transfer site is marked with signs, and the sites are set up in sequence as follows: topsoil area 11, construction waste area 12, demolition waste area 13, construction waste area 14, and decoration waste area 15.

[0037] The current disposal methods and on-site utilization methods, such as construction waste, construction mud, construction waste, and demolition waste, should be given priority for self-utilization and resource utilization. Demolition waste and decoration waste should be collected, transported, and disposed of in categories such as metal, wood, plastic, and others.

[0038] Construction waste, accounting for over 70% of construction waste, represents a significant portion of earth and stone excavation in infrastructure projects. Due to its large volume and insufficient processing, it presents challenges such as land occupation during storage and secondary transportation. Construction mud typically has a high water content and is usually separated into mud and water using sealed tanks or sedimentation ponds. Integrated equipment for pressure filtration is also employed. The separated water is used for dust suppression on-site, while the mud is directly landfilled or used for site leveling. Integrated equipment can be used for metering and treatment, and the mud can be directly used for backfilling in green areas. Because this portion is relatively small, it can be dried and stored as it is generated for later use. Demolition waste often originates from older residential areas or buildings. Usable bricks and wood can be collected and reused, while unusable parts can be crushed and used as aggregate. Demolition waste has a complex composition. For ordinary residential demolition, it can be sorted and reused. However, for industrial waste, it is necessary to determine if there is pollution; if so, it should be disposed of separately. Construction waste mainly consists of concrete blocks, gravel, and waste mortar, which can be used as backfill material. Construction waste recycling can be carried out through on-site utilization, decentralized processing, and centralized processing, with on-site utilization being the preferred method.

[0039] A method for utilizing construction waste based on a precise resource utilization structure, comprising the following steps:

[0040] Step 1: Conduct preliminary research at the initial stage of project construction, and calculate the amount of construction waste generated based on the geological survey report, main design, construction technology, etc., as well as the quantities of topsoil, ordinary earthwork, and rockwork, and formulate corresponding plans.

[0041] Step 2: Develop an energy-saving and environmentally friendly green construction plan based on the project type, carry out phased and zoned construction of the project, and reduce the generation of construction waste by optimizing construction technology and procedures;

[0042] Step 3: According to the schedule, set up a fixed transfer site within the occupied area and delineate the storage areas for topsoil, ordinary soil and rock; the fixed transfer system 1 shall be measured during construction, and external barriers and protective measures shall be set up, and separation and top protection shall be set up and marked, and the storage height shall not exceed 3m;

[0043] Step 4: Initially determine the utilization direction, divide the work into zones, and separately strip, stockpile, and protect the topsoil, then send the topsoil to the topsoil turnover location; classify the construction site by layer according to the current situation data, and strip, stockpile, protect, and utilize the topsoil or cultivated soil in the top 30cm to 50cm layer.

[0044] Step 5: Excavate and utilize the soil below the topsoil as soon as possible. In some areas, there are weathered rock and parent material layers below the soil. Stockpile the soil that can be backfilled in the site according to the process and give priority to backfilling the excavation site. Send the part of the ordinary soil that cannot be backfilled to the ordinary soil transportation site.

[0045] The soil below the topsoil layer is the focus of attention. It can be used for roadbed filling, foundation backfilling, seepage prevention cushion layer, isolation layer, raw soil conditioning, micro-topography construction, and landscape soil, especially in the area behind the soil layer; the topsoil or weathered rock below the topsoil is ordinary soil. Most of this soil can be used as backfill soil, and soil-type construction waste can be used as brick making and road engineering materials.

[0046] Step Six: Excess earthwork is tested against its intended use, and the use direction is accurately determined based on the test results;

[0047] Step 7: Properly manage and transport construction waste, reserving sufficient quantity for its own use according to the design, and precisely utilizing any excess; this ensures timely utilization after generation, reducing on-site storage or disposal costs. Excess soil that cannot be backfilled can be combined with excess topsoil and precisely utilized for municipal parks, wasteland remediation, rooftop gardens, etc.

[0048] Step 8: Construct a dynamic monitoring system for the recycling of construction waste and establish a network connection with relevant projects;

[0049] Based on the current data, the construction site is classified by layer, and the topsoil or cultivated soil in the 30cm to 50cm depth is stripped, stockpiled, protected, and utilized.

[0050] It can be combined with network platforms and mobile software for real-time dynamic monitoring, and form a network interaction with similar related projects.

[0051] Construction waste should be utilized promptly after it is generated to reduce the cost of on-site storage or disposal. Soil that cannot be backfilled can be used together with excess topsoil for targeted purposes such as municipal parks, wasteland remediation, and rooftop gardens.

[0052] This invention provides a precise and systematic tracking system for construction waste generation, establishing a quantitative balance between the amount arriving on-site, the utilization efficiency during use, and the amount of waste. Simultaneously, it tracks the usage stages based on the characteristics of the materials used in the project, establishing a categorized material ledger. This enables source tracking and statistical analysis of the types and quantities of construction waste. The tracking of usage stages can be achieved through construction progress and personnel location tracking, while the waste volume can be clearly identified through the construction waste cleanup ledger, specifying its category, quantity, and destination. This allows for precise resource allocation, ensuring that waste is utilized as much as possible for the project's resource recovery based on its characteristics and quantity, thereby reducing costs and disposal expenses.

[0053] Construction waste is categorized at its source based on construction techniques, procedures, and materials, starting from the commencement of construction on site. The types and quantities of construction waste, construction mud, construction debris, demolition waste, and renovation waste are clearly defined. Construction waste and construction mud are calculated based on geological survey data, design, and construction techniques. Construction debris generation is calculated based on the newly added building area, at a rate of 300t / 10,000m² to 800t / 10,000m². Demolition waste is calculated based on the demolished area, at a rate of 8,000t / 10,000m² to 13,000t / 10,000m². Renovation waste is statistically analyzed based on the number of households, at a rate of 0.5t / (household.a) to 1.0t / (household.a).

[0054] This invention provides a method for the precise utilization of large quantities of construction waste. This method can serve as a means of utilizing and disposing of large quantities of construction waste, thereby reducing the indiscriminate dumping of construction waste on-site and preventing the situation where excavated soil has no reasonable destination and is dumped haphazardly after the start of a project. Through precise utilization, the secondary transportation of construction waste can be reduced.

[0055] In summary, the calculation and utilization of construction waste at this construction site can be achieved through advance calculation and planning, utilization based on its characteristics, determination of reasonable utilization methods through classification surveys, and precise utilization of construction waste through a dynamic monitoring system.

[0056] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A utilization method based on a precise resource utilization structure of construction waste, the structure comprising a fixed transfer system (1), characterized in that: The fixed transport system (1) is composed of topsoil area (11), engineering slag area (12), demolition garbage area (13), engineering garbage area (14) and decoration garbage area (15). The method comprises the following steps: Step one: in the early stage of project construction, first investigate, according to the geological exploration report, main design and construction technology, calculate the amount of engineering slag, calculate the amount of topsoil, ordinary earthwork and stone, and make corresponding plans; Step two: according to the type of the project, make a green construction plan of energy saving and environmental protection, carry out construction in stages and zones, optimize the construction technology and construction process, and reduce the generation of engineering slag; Step three: according to the time sequence, set up a fixed turnover site in the occupied area, and demarcate the stacking area of topsoil, ordinary earthwork and rock; Step four: preliminarily determine the utilization direction, carry out zoned operation, separately strip, stack and protect the topsoil, and send the topsoil to the topsoil turnover position; according to the present situation, classify the construction site by layers, and strip, stack, protect and utilize the cultivated soil or topsoil on the ground surface of 30cm~50cm; Step five: utilize the earthwork below the topsoil nearby, stack the earthwork that can be backfilled in the site according to the process nearby for backfilling of the excavation site; send the part of the ordinary earthwork that cannot be backfilled to the ordinary earthwork transfer site; Step six: detect the excess earthwork according to the utilization approach, accurately determine the utilization direction according to the detection result; Step seven: reasonably transfer the engineering slag, according to the design, leave enough for self utilization, and accurately utilize the excess; Step eight: build a dynamic monitoring system of building waste resource utilization, and form networking interaction with related projects.

2. The utilization method of the construction waste precise resource utilization structure according to claim 1, characterized in that: The fixed transport system (1) is measured during construction, sets up peripheral blocking protection measures, sets up separation and top protection, is marked, and the stacking height is not more than 3m.

3. The utilization method of the construction waste precise resource utilization structure according to claim 1, characterized in that: According to the present situation, classify the construction site by layers, and strip, stack, protect and utilize the cultivated soil or topsoil on the ground surface of 30cm~50cm.

4. The utilization method of the construction waste precise resource utilization structure according to claim 1, characterized in that: The earthwork below the topsoil layer is used as the key object, which is used for roadbed filling, foundation backfilling, anti-seepage cushion layer, isolation layer, raw soil curing, micro-topography structure and landscape soil; the weathered rock above the cultivated soil or topsoil is used as ordinary earthwork, which is used for backfilling earthwork, and the soil type building waste is used as brick making and road engineering material.

5. The utilization method of the construction waste precise resource utilization structure according to claim 1, characterized in that: Real-time dynamic monitoring is carried out combined with network platform and mobile phone software, and networking interaction is formed with related projects.

6. The utilization method of the construction waste precise resource utilization structure according to claim 1, characterized in that: After the building waste is generated, it is utilized in time, the stacking or disposal cost in the site is reduced, the earthwork that cannot be backfilled is utilized together with the excess topsoil, and the utilization is accurately carried out to municipal parks, abandoned land treatment and roof garden soil.

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