CN116104098A - Landfill garbage excavation method - Google Patents
Landfill garbage excavation method Download PDFInfo
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- CN116104098A CN116104098A CN202211583061.6A CN202211583061A CN116104098A CN 116104098 A CN116104098 A CN 116104098A CN 202211583061 A CN202211583061 A CN 202211583061A CN 116104098 A CN116104098 A CN 116104098A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/006—Sealing of existing landfills, e.g. using mining techniques
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Processing Of Solid Wastes (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a landfill rubbish excavation method in the technical field of rubbish excavation, which comprises the following steps of marking out and determining an excavation area, and determining excavation thickness, excavation area and excavation amount; constructing a transportation platform and a road; deodorizing and preprocessing a pile body; uncovering a film before excavation to form a semi-closed excavation site; entering field excavation operation, wherein the excavation operation synchronously performs environmental protection measures, and performs rain and sewage diversion after daily excavation is finished; digging and releasing a slope and repairing the slope; slope repairing is carried out on the area dug to the designed elevation, the slope is maintained by dividing the area and putting a proper digging machine or pushing machine into the area, the slope after stabilization is 1:3, the plane area is leveled in situ, and the area is covered, sealed, welded and ballasted by adopting a 1.0mm HDPE film synchronously; loading and transporting by a loading platform; after excavation, the invention sequentially performs garbage excavation, performs excavation operation in a standardized manner, improves the deodorization effect, prepares various prevention and control measures and ensures the safe performance of excavation.
Description
Technical Field
The invention relates to the technical field of garbage excavation, in particular to a landfill garbage excavation method.
Background
In the year 2020, 8 months, the national development reform commission, the urban and rural construction department of housing and the ecological environment department jointly print the scheme of urban household garbage classification and treatment facility short-board strength item, and the scheme is mainly deployed around pushing garbage classification and throwing, classification and collection, classification and transportation and classification treatment facility construction. The important tasks are mentioned to greatly improve the garbage incineration capability, and the garbage disposal mode mainly based on incineration is accelerated to develop in areas with daily clear transportation of the living garbage exceeding 300 tons, so that the 'zero landfill' of the primary living garbage is basically realized in 2023.
In order to respond to the call of the country, more and more existing landfill sites in the future will excavate and burn the buried stale garbage to make more land available as an emergency guarantee facility for harmless treatment of the garbage or to reuse land resources after soil remediation.
However, at present, no effective method and scheme for garbage excavation and treatment exist, so that the excavation is disordered, the efficiency is low, and the odor and safety problems in the excavation process are not well prevented and controlled.
Based on the above, the invention designs a landfill refuse excavation method to solve the above problems.
Disclosure of Invention
The invention aims to provide a landfill refuse excavation method for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a landfill rubbish excavation method comprises the following steps:
s1: marking to determine an excavation area, and determining excavation thickness, excavation area and excavation amount;
s2: constructing a transportation platform and a road;
s3: deodorizing and preprocessing a pile body;
s4: uncovering a film before excavation to form a semi-closed excavation site;
s5: entering field excavation operation, wherein the excavation operation synchronously performs environmental protection measures, and performs rain and sewage diversion after daily excavation is finished;
s6: digging and releasing a slope and repairing the slope; slope repairing is carried out on the area dug to the designed elevation, the slope is maintained by dividing the area and putting a proper digging machine or pushing machine into the area, the slope after stabilization is 1:3, the plane area is leveled in situ, and the area is covered, sealed, welded and ballasted by adopting a 1.0mm HDPE film synchronously;
s7: loading and transporting by a loading platform;
s8: and (5) membrane covering after excavation.
Preferably, the constructing a transportation platform and a road in S2 specifically includes: the garbage pile body is used as a foundation, an earth work film is covered, a steel plate roadbed is paved above the earth work film, and the steel plate roadbed can dynamically migrate according to the excavation condition.
Preferably, the pretreatment in S3 specifically includes: drilling holes in the garbage pile body, continuously spraying deodorant from top to bottom through a high-pressure nozzle in the holes, wherein the diameter of the drilled holes is 12cm, the depth is 6m, and the spraying radius is 1.25m; and an atomization air cannon is arranged near the circumference of the excavation site to spray and deodorize above the center direction of the excavation site, so that a mist protective cover is formed to prevent odor from escaping.
Preferably, the film uncovering in the step S4 is specifically realized by setting up a supporting rod to realize backdrop type covered excavation, and the top of the backdrop type geomembrane is covered with a transverse geomembrane to protect the upper part of an open field, so that semi-closed excavation is realized, and a plurality of fixed air cannons are simultaneously started to spray plant deodorant on the exposed surface of garbage excavation.
Preferably, in the step S5, the daily covering is performed by using a double-layer material at the end of daily excavation, specifically: firstly, laying 100g/m < 2 > geotextile on the exposed surface of the garbage, and spraying deodorant on the geotextile to effectively intercept odor escaping; and then a 0.3mmPE film is paved for airtight covering, so that the rain and sewage diversion effect is achieved.
Preferably, the environmental protection measures in the step S5 comprise percolate prevention and control, odor prevention and control, stack slip prevention and control and dangerous gas prevention and control;
the prevention and control of the percolate is as follows: detecting overflow pollution and measuring the overflow quantity; materials such as sand bags, clay and the like which can be used for blocking are subjected to overflow blocking; a tissue leachate outward transport vehicle that transports the leachate outward to other treatment facilities;
the odor prevention and control concretely comprises: spraying deodorizing, covering deodorizing without soil, covering deodorizing geotextile, and the like;
the pile body slip prevention and control specifically comprises: immediately transferring the garbage landfill operation platform, and transferring workers and equipment; blocking and intercepting the flowing percolate, and pumping back to the percolate regulating tank; timely cleaning the collapsed garbage and transporting the collapsed garbage back into a garbage landfill operation area; checking whether the original seepage-proofing system is damaged or not, and if the original seepage-proofing system is damaged, repairing the original seepage-proofing system in time; the side slope of the garbage stack body is reconditioned again, and the side slope proportion of the garbage stack body is properly increased; the monitoring work of the garbage stack body is enhanced until the garbage stack body is stabilized;
the dangerous gas prevention and control specifically comprises the following steps: providing a gas detection instrument to detect the concentration of the field methane and respond in time; the construction warning sign is erected in the working range of the high-concentration area of the biogas, so that the entry of irrelevant people is stopped; providing enough dry powder fire extinguishers to be mobilized at any time for emergency rescue; an explosion-proof fan is arranged for dispersing methane on site so as to reduce the concentration.
Preferably, the area divided in the step S6 is specifically a loading area and an excavation area slope repairing area, a plurality of diggers are put in the loading area to load, a plurality of diggers are put in the excavation area to dig and transport garbage, and a plurality of pushing machines are put in the slope repairing area to lower the garbage at the top of the slope to maintain the slope.
Preferably, the transporting of the loading vehicle in S7 is specifically: dividing a transportation platform into a bearing area and a reversing area, setting a driving route, alternately loading 2 trolleys by using 1 excavator, finishing reversing and positioning work of the B trolley in the loading process of the A trolley, starting the A trolley after the A trolley is fully loaded, immediately loading the B trolley by using the excavator, and finishing reversing and positioning the C trolley in the process.
Compared with the prior art, the invention has the beneficial effects that:
the garbage excavation is orderly carried out, the excavation operation is standardized, the deodorizing effect is improved, and meanwhile, various prevention and control measures are prepared, so that the excavation safety is ensured; through normalized excavation and loading, the excavation efficiency is improved, the gradient is maintained, landslide is avoided, and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a loading yard of the present invention;
FIG. 2 is a schematic diagram of the excavation process of the present invention;
FIG. 3 is a schematic view of the construction of the excavation work protection of the present invention;
fig. 4 is a schematic view of a semi-closed excavation site of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a technical solution:
a landfill rubbish excavation method comprises the following steps:
s1: marking to determine an excavation area, and determining excavation thickness, excavation area and excavation amount; the number of the adaptive devices is conveniently determined according to the excavation parameters, and the excavation progress is controlled;
s2: constructing a transportation platform and a road; taking the garbage pile body as a foundation, covering an earth work film, paving a steel plate roadbed above the earth work film, and dynamically transferring the steel plate roadbed according to the excavation condition;
s3: deodorizing and preprocessing a pile body; drilling holes in the garbage pile body, continuously spraying deodorant from top to bottom through a high-pressure nozzle in the holes, wherein the diameter of the drilled holes is 12cm, the depth is 6m, and the spraying radius is 1.25m; an atomization air cannon is arranged near the circumference of the excavation site to spray and deodorize above the center direction of the excavation site, so that a vaporific protective cover is formed to prevent odor from escaping; the inside and the periphery of the garbage stack body are provided with deodorizing measures, so that the protection before film uncovering is enhanced, and a large amount of odor is prevented from dispersing when the film uncovering is carried out.
S4: uncovering a film before excavation to form a semi-closed excavation site; the membrane uncovering is specifically realized by setting up a support rod to realize backdrop type covered excavation, the top of the backdrop type geomembrane is covered with a transverse geomembrane to protect the upper part of an open site, semi-closed excavation is realized, odor is blocked to a large extent, odor is deodorized in the accessories of the excavated site as much as possible, and a plurality of fixed air cannons are started to spray plant deodorant on the exposed surface of garbage excavation;
when excavation is finished or weather is changed, the geomembrane is covered again by the folding and falling support rod, and the support rod can be pressed on the geomembrane to prevent wind blowing.
S5: entering field excavation operation, wherein the excavation operation synchronously performs environmental protection measures, and performs rain and sewage diversion after daily excavation is finished; the daily covering is carried out by adopting double-layer materials at the end of daily excavation, and specifically comprises the following steps: firstly, laying 100g/m < 2 > geotextile on the exposed surface of the garbage, and spraying deodorant on the geotextile to effectively intercept odor escaping; then a 0.3mmPE film is paved for airtight covering, so that the rain and sewage diversion effect is achieved;
s6: digging and releasing a slope and repairing the slope; slope repairing is carried out on the area dug to the designed elevation, the slope is maintained by dividing the area and putting a proper digging machine or pushing machine into the area, the slope after stabilization is 1:3, the plane area is leveled in situ, and the area is covered, sealed, welded and ballasted by adopting a 1.0mm HDPE film synchronously;
the environmental protection measures comprise percolate prevention and control, odor prevention and control, stack slippage prevention and control and dangerous gas prevention and control;
the prevention and control of the percolate is as follows: detecting overflow pollution and measuring the overflow quantity; materials such as sand bags, clay and the like which can be used for blocking are subjected to overflow blocking; a tissue leachate outward transport vehicle that transports the leachate outward to other treatment facilities;
the odor prevention and control concretely comprises: spraying deodorizing, covering deodorizing without soil, covering deodorizing geotextile, and the like;
the pile body slip prevention and control specifically comprises: immediately transferring the garbage landfill operation platform, and transferring workers and equipment; blocking and intercepting the flowing percolate, and pumping back to the percolate regulating tank; timely cleaning the collapsed garbage and transporting the collapsed garbage back into a garbage landfill operation area; checking whether the original seepage-proofing system is damaged or not, and if the original seepage-proofing system is damaged, repairing the original seepage-proofing system in time; the side slope of the garbage stack body is reconditioned again, and the side slope proportion of the garbage stack body is properly increased; the monitoring work of the garbage stack body is enhanced until the garbage stack body is stabilized;
the dangerous gas prevention and control specifically comprises the following steps: providing a gas detection instrument to detect the concentration of the field methane and respond in time; the construction warning sign is erected in the working range of the high-concentration area of the biogas, so that the entry of irrelevant people is stopped; providing enough dry powder fire extinguishers to be mobilized at any time for emergency rescue; an explosion-proof fan is arranged for dispersing methane on site so as to reduce the concentration;
dividing an excavation site into a loading area and an excavation area slope repairing area, putting a plurality of diggers in the loading area to load, putting a plurality of diggers in the excavation area to dig and transport garbage, and putting a plurality of pushing machines in the slope repairing area to lower the garbage at the top of a slope to maintain the slope;
s7: loading and transporting by a loading platform; dividing a transportation platform into a bearing area and a reversing area, setting a driving route, alternately loading 2 trolleys by using 1 excavator, finishing reversing and positioning work of the B trolley in the loading process of the A trolley, starting the A trolley after the A trolley is fully loaded, immediately loading the B trolley by using the excavator, and finishing reversing and positioning the C trolley in the process.
S8: and (5) membrane covering after excavation.
According to the method, garbage excavation is carried out, excavation operation is carried out in a standardized mode, the deodorizing effect is improved, various prevention and control measures are prepared, and the safe excavation is guaranteed; through normalized excavation and loading, the excavation efficiency is improved, the gradient is maintained, landslide is avoided, and the like.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. The landfill refuse excavation method is characterized by comprising the following steps of:
s1: marking to determine an excavation area, and determining excavation thickness, excavation area and excavation amount;
s2: constructing a transportation platform and a road;
s3: deodorizing and preprocessing a pile body;
s4: uncovering a film before excavation to form a semi-closed excavation site;
s5: entering field excavation operation, wherein the excavation operation synchronously performs environmental protection measures, and performs rain and sewage diversion after daily excavation is finished;
s6: digging and releasing a slope and repairing the slope; slope repairing is carried out on the area dug to the designed elevation, the slope is maintained by dividing the area and putting a proper digging machine or pushing machine into the area, the slope after stabilization is 1:3, the plane area is leveled in situ, and the area is covered, sealed, welded and ballasted by adopting a 1.0mm HDPE film synchronously;
s7: loading and transporting by a loading platform;
s8: and (5) membrane covering after excavation.
2. A landfill refuse excavation method according to claim 1, characterized in that: the construction of the transportation platform and the road in the S2 is specifically as follows: the garbage pile body is used as a foundation, an earth work film is covered, a steel plate roadbed is paved above the earth work film, and the steel plate roadbed can dynamically migrate according to the excavation condition.
3. A landfill refuse excavation method according to claim 1, characterized in that: the pretreatment in the step S3 specifically comprises the following steps: drilling holes in the garbage pile body, continuously spraying deodorant from top to bottom through a high-pressure nozzle in the holes, wherein the diameter of the drilled holes is 12cm, the depth is 6m, and the spraying radius is 1.25m; and an atomization air cannon is arranged near the circumference of the excavation site to spray and deodorize above the center direction of the excavation site, so that a mist protective cover is formed to prevent odor from escaping.
4. A landfill refuse excavation method according to claim 1, characterized in that: and in the step S4, the film uncovering is specifically realized by setting up a supporting rod to realize backdrop type covered excavation, the top of the backdrop type geomembrane is covered with a transverse geomembrane to protect the upper part of an open field, the semi-closed excavation is realized, and a plurality of fixed air cannons are simultaneously started to spray plant deodorant on the exposed surface of the garbage excavation.
5. A landfill refuse excavation method according to claim 1, characterized in that: in the step S5, double-layer materials are adopted for daily coverage at the end of daily excavation, and the method specifically comprises the following steps: firstly, laying 100g/m < 2 > geotextile on the exposed surface of the garbage, and spraying deodorant on the geotextile to effectively intercept odor escaping; and then a 0.3mmPE film is paved for airtight covering, so that the rain and sewage diversion effect is achieved.
6. A landfill refuse excavation method according to claim 1, characterized in that: the environmental protection measures in the S5 comprise percolate prevention and control, odor prevention and control, stack slip prevention and control and dangerous gas prevention and control;
the prevention and control of the percolate is as follows: detecting overflow pollution and measuring the overflow quantity; materials such as sand bags, clay and the like which can be used for blocking are subjected to overflow blocking; a tissue leachate outward transport vehicle that transports the leachate outward to other treatment facilities;
the odor prevention and control concretely comprises: spraying deodorizing, covering deodorizing without soil, covering deodorizing geotextile, and the like;
the pile body slip prevention and control specifically comprises: immediately transferring the garbage landfill operation platform, and transferring workers and equipment; blocking and intercepting the flowing percolate, and pumping back to the percolate regulating tank; timely cleaning the collapsed garbage and transporting the collapsed garbage back into a garbage landfill operation area; checking whether the original seepage-proofing system is damaged or not, and if the original seepage-proofing system is damaged, repairing the original seepage-proofing system in time; the side slope of the garbage stack body is reconditioned again, and the side slope proportion of the garbage stack body is properly increased; the monitoring work of the garbage stack body is enhanced until the garbage stack body is stabilized;
the dangerous gas prevention and control specifically comprises the following steps: providing a gas detection instrument to detect the concentration of the field methane and respond in time; the construction warning sign is erected in the working range of the high-concentration area of the biogas, so that the entry of irrelevant people is stopped; providing enough dry powder fire extinguishers to be mobilized at any time for emergency rescue; an explosion-proof fan is arranged for dispersing methane on site so as to reduce the concentration.
7. A landfill refuse excavation method according to claim 1, characterized in that: the area divided in the S6 is specifically a loading area and an excavation area slope repairing area, a plurality of digging machines are put in the loading area to load, a plurality of digging machines are put in the excavation area to dig and transport garbage, and a plurality of pushing machines are put in the slope repairing area to lower the garbage on the top of the slope to maintain the slope.
8. A landfill refuse excavation method according to claim 1, characterized in that: the S7 loading transportation specifically comprises the following steps: dividing a transportation platform into a bearing area and a reversing area, setting a driving route, alternately loading 2 trolleys by using 1 excavator, finishing reversing and positioning work of the B trolley in the loading process of the A trolley, starting the A trolley after the A trolley is fully loaded, immediately loading the B trolley by using the excavator, and finishing reversing and positioning the C trolley in the process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211583061.6A CN116104098A (en) | 2022-12-10 | 2022-12-10 | Landfill garbage excavation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211583061.6A CN116104098A (en) | 2022-12-10 | 2022-12-10 | Landfill garbage excavation method |
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| Publication Number | Publication Date |
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| CN116104098A true CN116104098A (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211583061.6A Pending CN116104098A (en) | 2022-12-10 | 2022-12-10 | Landfill garbage excavation method |
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- 2022-12-10 CN CN202211583061.6A patent/CN116104098A/en active Pending
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