Method and device for delimiting hazardous waste remediation area of site polluted soil

Abstract

The invention relates to a method and device for delimiting a hazardous waste remediation area of site contaminated soil, and belongs to the technical field of soil remediation. The method comprises the following steps: dividing a site into a plurality of layer areas along the depth direction, and obtaining toxic substance content data of sampling points in each layer area; the sampling points are projected to a site plane, and a Thiessen polygon algorithm is adopted to divide a plurality of sub-regions; carrying out interpolation by adopting a Kriging interpolation algorithm; combining the sub-regions to form a composite region, and setting excavation boundary coordinates; and defining an excavation boundary of the site. A Thiessen polygon algorithm and a Kriging interpolation algorithm are adopted to divide and interpolate a site plane, sub-regions of the site plane are divided into an outward transport layer region, a retention layer region and a non-excavation layer region by analyzing the content of toxic substances, the sub-regions are combined into a composite region based on the properties of a soil layer region, and the composite region is constructed. And the marking work of the site excavation boundary is simplified.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil remediation, and particularly relates to a method and device for demarcating a hazardous waste remediation area of contaminated soil at a site. Background Art

[0002] The remediation of hazardous waste in contaminated soil at a site plays an important role in protecting the ecological environment, ensuring food safety, preventing water resource pollution, and treating pollution sources. The existing methods for demarcating the hazardous waste remediation area of contaminated soil at a site are as follows. First, samples of the content of toxic substances are taken within the site. Then, the data of the content of toxic substances are projected onto the site plane, and the Thiessen polygon algorithm and the Kriging interpolation algorithm are used for area division and interpolation. Soils with relatively low pollution levels can be remediated in place, while soils with severe pollution need to be transported to other areas for purification treatment.

[0003] Although the traditional methods for demarcating the hazardous waste remediation area of contaminated soil can divide the contaminated soil into areas, there are still some deficiencies. (1) Although the existing methods can divide the contaminated site into areas, they cannot integrate the excavation sub-areas according to the properties of different soil layers, resulting in time-consuming and laborious marking processes and subsequent excavation operations; (2) The marking work of the excavation boundary is usually carried out manually, with low efficiency and prone to errors, and cannot meet the needs of large-scale site remediation; (3) The existing methods lack an intuitive display method, making it difficult for the excavation personnel to quickly master the excavation work and affecting work efficiency. Therefore, there is an urgent need to design a method and device for demarcating the hazardous waste remediation area of contaminated soil at a site to improve the convenience of marking the excavation boundary and soil remediation treatment. Summary of the Invention

[0004] The purpose of the present invention is to provide a method and device for demarcating a hazardous waste remediation area of contaminated soil at a site to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions:

[0006] A method for demarcating a hazardous waste remediation area of contaminated soil at a site, comprising the following steps:

[0007] The site is divided into multiple layers along the depth direction, and a number of sampling points are set in each layer of the site to obtain the data of the content of toxic substances at each sampling point;

[0008] Each sampling point is projected onto the same horizontal site plane, and the Thiessen polygon algorithm is used to divide the site plane to form multiple sub-areas;

[0009] For sampling points lacking data of the content of toxic substances, the Kriging interpolation algorithm is used to interpolate them so that each layer in each sub-area has data of the content of toxic substances;

[0010] According to the toxic substance content data, the layers in each sub-area are divided into transport layers, retention layers and non-excavation layers. The sub-areas with the same lower limit of restoration depth, adjacent to each other and without retention layers are merged into composite areas. The excavation boundary coordinates are set based on the remaining sub-areas and composite areas after the merger.

[0011] The excavation boundary of the site is delineated according to the excavation boundary coordinates.

[0012] As a further optimization scheme of the present invention, the transport layer area is a layer area where the content of soil toxic substances exceeds the standard, the bottom of the lowest transport layer area is the lower limit of the remediation depth, the retained layer area is a layer area where the content of soil toxic substances does not exceed the standard and is higher than the lower limit of the remediation depth, and the non-excavation layer area is a layer area where the content of soil toxic substances does not exceed the standard and is lower than the lower limit of the remediation depth.

[0013] As a further optimization scheme of the present invention, the toxic substances are divided into the following five categories: highly toxic substances, toxic substances, carcinogenic substances, mutagenic substances and reproductive toxic substances; and the external transport layer area includes the following layers:

[0014] The toxic substances are divided into the following five categories: highly toxic substances, toxic substances, carcinogenic substances, mutagenic substances and reproductive toxic substances; and the export zone includes the zone where the content of a single type of toxic substance reaches the corresponding threshold, and the zone containing two or more different toxic substances and meeting the following formula:

[0015]

[0016] in, is the content of highly toxic substances in the soil. is the standard value of highly toxic substances in soil, a is the number of highly toxic substances, PT,j is the content of toxic substances in the soil, LT is the standard value of toxic substances in soil, b is the number of toxic substances, PCarc,k is the content of carcinogenic substances in the soil. LCarc is the standard value of carcinogenic substances in soil, c is the number of carcinogenic substances, PMuta,m is the content of mutagenic substances in the soil, LMuta is the standard value of mutagenic substances in soil, d is the number of mutagenic substances, PTera,n is the content of reproductive toxic substances in the soil, LTeta is the standard value of reproductive toxic substances in soil, e is the number of reproductive toxic substances.

[0017] A device for demarcating areas for site contaminated soil and hazardous waste remediation, comprising:

[0018] Soil sampling and analysis module, used to conduct stratified sampling of the site and obtain data on the toxic substance content at each sampling point;

[0019] A site plane division module is used to project each sampling point into the same horizontal site plane, and divide the site plane into multiple sub-areas using a Thiessen polygon algorithm;

[0020] The layer division module is used to interpolate the sampling points with missing toxic substance content data through the Kriging interpolation algorithm, so that each layer in each sub-area has toxic substance content data;

[0021] The excavation boundary generation module is used to divide each layer area in each sub-area into an external transport layer area, a reserved layer area and a non-excavation layer area according to the toxic substance content data, merge the sub-areas with the same lower limit of the restoration depth, which are adjacent to each other and do not have a reserved layer area into a composite area, and set the excavation boundary coordinates based on the remaining sub-areas and composite areas after the merger;

[0022] The boundary marking module is used to mark the excavation boundary of the site according to the excavation boundary coordinates.

[0023] As a further optimization scheme of the present invention, the boundary marking module includes a carrying mechanism and a drilling mechanism and a pole assembly arranged on the carrying mechanism, a flexible enclosure assembly is provided inside the pole assembly, and a robotic arm 1 and a robotic arm 2 are respectively provided on the front and rear sides of the carrying mechanism. The drilling mechanism is used to open a socket at the excavation boundary, the robotic arm 1 is used to insert the pole assembly into the socket, and the robotic arm 2 is used to connect the enclosure assembly in one pole assembly with another pole assembly to form an enclosing mark on the excavation boundary.

[0024] As a further optimization scheme of the present invention, a storage mechanism is provided on the transport mechanism, and the storage mechanism includes a trumpet-shaped ceiling and a slide rail fixed on the ceiling, the slide rail spirally winds downward from the top of the ceiling, and the lower end of the slide rail radially bends and extends toward the ceiling, a plurality of vertical pole assemblies are suspended under the slide rail, and a stopper for stopping the vertical pole assemblies is provided at the lower end of the slide rail.

[0025] As a further optimization scheme of the present invention, the drilling mechanism includes a transverse linear driving member arranged on one side of the carrying mechanism in the width direction, a vertical linear driving member fixed at the output end of the transverse linear driving member, and a drill fixed at the output end of the vertical linear driving member.

[0026] As a further optimization scheme of the present invention, the device also includes a vibration mechanism, which includes a base fixed on the top of the carrier mechanism, a vibration member spring-connected to the top of the base, and a vibration source arranged on the top of the vibration member, and the vibration member is used for the vertical rod assembly suspended on the slide rail to move the vertical rod assembly down along the slide rail.

[0027] As a further optimization scheme of the present invention, the vertical pole assembly includes a support, an insertion rod fixed to the bottom of the support, a rod body fixed to the top of the support, and a hanger arranged on the top of the rod body and capable of being hung on the inner side of the slide rail, and a gap is formed between the top of the block and the top of the lower end of the slide rail for the hanger to pass through.

[0028] As a further optimization scheme of the present invention, an insert block corresponding to the number of the layer areas is slidably provided on one side wall of the rod body, a sliding groove is opened on the inner side of the insert block, a locking block is slidably provided on the inner side of the sliding groove, and the locking block is spring-connected to the bottom of the sliding groove, and a locking groove corresponding to the locking block is provided on the other side wall of the rod body. When the insert block moves toward the inside of the rod body and the sliding groove is aligned with the locking groove, the locking block is embedded in the locking groove so that the insert block indicates the depth of the external transport layer area.

[0029] The beneficial effects of the present invention are:

[0030] 1) The present invention adopts the Thiessen polygon algorithm and the Kriging interpolation algorithm, and divides and interpolates the site plane based on the toxic substance content data. By analyzing the content of toxic substances, the sub-areas of the site plane are divided into an external transport layer area, a reserved layer area, and a non-excavation layer area. The sub-areas with the same lower limit of the restoration depth, which are close to each other and do not have a reserved layer area, are merged into a composite area, which is convenient for the subsequent marking of the excavation boundary of the site;

[0031] 2) A flexible enclosure assembly is provided inside the vertical pole assembly of the present invention. When marking the excavation boundary, the carrier mechanism obtains the coordinates of the excavation boundary, and a plug hole is opened at the excavation boundary through the drilling mechanism. The vertical pole assembly on the carrier mechanism is inserted into the plug hole through the cooperation of the first mechanical arm and the second mechanical arm, and the enclosure assembly in one vertical pole assembly is connected with the other vertical pole assembly, so that an enclosing mark is formed on the excavation boundary, realizing unmanned marking of the excavation boundary, saving manpower and improving the convenience of soil excavation and processing;

[0032] 3) The present invention uses a vibration mechanism to cooperate with a spiral storage mechanism to move the pole assembly and align the pole assembly at the lower end of the slide rail. After the drilling mechanism drills the insertion hole, it is away from the middle of the vehicle body of the carrier. The drilling, insertion of the pole assembly and clamping of the enclosure assembly are all in-situ operations. The carrier remains stationary, thereby improving the convenience and operation accuracy of moving the pole assembly and the enclosure assembly.

[0033] 4) The present invention displays the position of the external transport layer area through the plug blocks corresponding to the number of layer areas. When the plug blocks move toward the inside of the rod body so that the slide groove is aligned with the lock groove, the lock block is embedded in the lock groove and the position of the plug blocks is locked. The plug blocks inserted into the rod body are used to indicate the location of the external transport layer area, and other plug blocks indicate the layer areas where the soil does not need to be transported for treatment, which helps the excavation personnel to master the excavation work and further improves the convenience of excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a flow chart of the site contaminated soil hazardous waste remediation area delineation of the present invention;

[0035] Figure 2 It is a schematic diagram of the sub-area division result of the site area 1 of the present invention;

[0036] Figure 3 This is a schematic diagram of the sub-area division result of the second area of ​​the site of the present invention;

[0037] Figure 4 is a system block diagram of the present invention;

[0038] Figure 5 It is a schematic diagram of the overall structure of the boundary marking module of the present invention;

[0039] Figure 6 It is a schematic diagram of the disassembly structure of the storage mechanism of the present invention;

[0040] Figure 7 It is a schematic diagram of the internal structure of the vibration mechanism of the present invention;

[0041] Figure 8 It is a schematic diagram of the overall structure of the upright pole assembly of the present invention;

[0042] Figure 9 yes Figure 5 The enlarged view of point A in the middle;

[0043] Figure 10 yes Figure 5 The enlarged view of point B in the middle;

[0044] Figure 11 is a top cross-sectional view of a pole assembly of the present invention;

[0045] Figure 12 It is a schematic diagram of the internal structure of the upright pole assembly of the present invention;

[0046] Figure 13 yes Figure 12 Enlarged view of point C in the middle.

[0047] In the figure: 1, carrier mechanism; 2, drilling mechanism; 3, vertical rod assembly; 4, enclosure assembly; 5, first robotic arm; 6, second robotic arm; 7, storage mechanism; 8, vibration mechanism; 21, horizontal linear drive; 22, vertical linear drive; 23, drill; 31, support; 32, insertion rod; 33, rod body; 34, hanging member; 35, insertion block; 36, chute; 37, locking block; 38, locking groove; 41, upper plate body; 42, lower plate body; 43, rotating shaft; 44, enclosure belt; 45, clamping member; 46, clamping block; 47, reset member; 71, ceiling; 72, slide rail; 73, stop block; 74, support rod; 81, base; 82, vibrating member; 83, vibration motor; 84, lifting member; 85, support plate. Specific embodiments

[0048] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0049] First embodiment

[0050] As Figures 1 - 3 shown, this embodiment relates to a method for demarcating the hazardous waste remediation area of contaminated soil in a site, including the following steps:

[0051] Step S1: Divide the site into multiple layer areas along the depth direction, set a number of sampling points in each layer area of the site, and obtain the content data of toxic substances at each sampling point. In this embodiment, a Yushihua chemical plant is taken as an example for demarcating the hazardous waste remediation area of contaminated soil in the site. Figure 2 For the division result of Site Area 1, Figure 3 For the division result of Site Area 2. In the figure, the positions of the sampling points are shown in the form of "WF + Arabic numerals". The blank areas in the figure are the areas where soil remediation is not required. The division process refers to Step S2.

[0052] Step S2: Project each sampling point onto the same horizontal site plane, and use the Thiessen polygon algorithm to divide the site plane to form multiple sub-regions. Using the Thiessen polygon to divide the plane with projected data is common knowledge in the art and will not be elaborated too much. This site plane includes Figure 2 the area within the red line in Figure 3 and the remaining area within the red line in Figure 2 after removing the construction area. The above areas are divided by the Thiessen polygon algorithm. For the division results, please refer to the content shown in Figure 3 and

[0053] Step S3: For sampling points with missing toxic substance content data, interpolate them using the Kriging interpolation algorithm so that each layer in each sub-area has toxic substance content data. Interpolation processing in areas lacking sampling points using the Kriging interpolation algorithm is also common knowledge in the art, so it will not be described in detail. Figure 2 and Figure 3 The lower limit of the restoration depth of each sub-area is shown in the figure. In this embodiment, each sub-area is divided into six layers from top to bottom, and the lower limit of the soil depth corresponding to each layer is 1.25m, 2.25m, 3.75m, 5.25m, 6.75m and 8.25m respectively. During the interpolation process, the sampling points of the first layer of each sub-area are retained on the site plane, and other sampling points are hidden. The Kriging interpolation algorithm is used to interpolate the missing sampling points of the toxic substance content data. Then, the six layers of different depths are interpolated in turn to complete the toxic substance content data.

[0054] Step S4, divide each layer area in each sub-area into an outward transport layer area, a retained layer area and a non-excavation layer area according to the toxic substance content data, merge the sub-areas with the same lower limit of the remediation depth, which are adjacent to each other and do not have a retained layer area into a composite area, and set the excavation boundary coordinates based on the remaining sub-areas and composite areas after the merger. The outward transport layer area is the layer area where the content of soil toxic substances exceeds the standard. The bottom of the lowest outward transport layer area is the lower limit of the remediation depth. The retained layer area is the layer area where the content of soil toxic substances does not exceed the standard and is higher than the lower limit of the remediation depth. The non-excavation layer area is the layer area where the content of soil toxic substances does not exceed the standard and is lower than the lower limit of the remediation depth. Figure 2 Taking the sub-areas corresponding to the middle sampling points WF15, WF41 and WF53 as examples, the lower limit of the restoration depth of the above sub-areas is 3.75m, and the first to third layers are all external transport layers. The boundaries of the three are merged to form a composite area, so that the merged areas can be uniformly marked and excavated later.

[0055] Toxic substances are divided into the following five categories: highly toxic substances, toxic substances, carcinogenic substances, mutagenic substances and reproductive toxic substances; and the export zone includes the following zones:

[0056] Layers where the total content of one or more highly toxic substances reaches 0.1%;

[0057] Layers where the total content of one or more toxic substances reaches 3%;

[0058] The layer area where the total content of one or more carcinogenic substances reaches 0.1%;

[0059] The layer area where the total content of one or more mutagenic substances reaches 0.1%;

[0060] The layer area where the total content of one or more reproductive toxic substances reaches 0.5%;

[0061] Layers containing two or more different toxic substances that meet the following formula:

[0062]

[0063] in, is the content of highly toxic substances in the soil. is the standard value of highly toxic substances in soil, a is the number of highly toxic substances, PT,j is the content of toxic substances in the soil, LT is the standard value of toxic substances in soil, b is the number of toxic substances, PCarc,k is the content of carcinogenic substances in the soil. LCarc is the standard value of carcinogenic substances in soil, c is the number of carcinogenic substances, PMuta,m is the content of mutagenic substances in the soil, LMuta is the standard value of mutagenic substances in soil, d is the number of mutagenic substances, PTera,n is the content of reproductive toxic substances in the soil, LTeta is the standard value of reproductive toxic substances in soil, e The above standard values ​​refer to the relevant provisions in the "Identification Standards for Hazardous Wastes - Identification of Toxic Substances Content".

[0064] Step S5: Delineate the excavation boundary of the site according to the excavation boundary coordinates. Excavate the soil from the external transport layer and the reserved layer along the excavation boundary, transport the soil from the external transport layer to the outside of the site, and backfill the site. The soil used for backfilling includes the soil from the reserved layer. The soil in the external transport layer is highly contaminated and needs to be transported to other areas for purification. The other soil in the site is less contaminated and can be remediated on site.

[0065] Second embodiment

[0066] like Figure 4 As shown, this embodiment relates to a device for demarcating areas for remediation of contaminated soil and hazardous waste on a site, including a soil sampling and analysis module, a data projection module, a site plane division module, a layer division module, an excavation boundary generation module, a boundary marking module and a soil transfer module.

[0067] The soil sampling and analysis module is used to set up several sampling points in the site, conduct stratified sampling of the site, and obtain the toxic substance content data of each sampling point.

[0068] The site plane division module is used to project the toxic substance content data onto the site plane and divide the site plane using the Thiessen polygon algorithm to form multiple sub-areas.

[0069] The layer division module is used to divide each sub-area into multiple layers along the depth direction. For the layers lacking sampling points, the Kriging interpolation algorithm is used to interpolate them so that each layer of each sub-area has toxic substance content data.

[0070] The excavation boundary generation module is used to divide each layer area into an external transport layer area, a retained layer area and a non-excavation layer area according to the toxic substance content data, merge the sub-areas with the same lower limit of the restoration depth, which are adjacent to each other and do not have a retained layer area into a composite area, and set the excavation boundary coordinates based on the remaining sub-areas and composite areas after the merger.

[0071] The boundary marking module is used to delineate the excavation boundary of the site according to the excavation boundary coordinates.

[0072] The soil transfer module is used to dig out the soil from the external transport layer area and the retention layer area along the excavation boundary, transport the soil from the external transport layer area to the outside of the site, and backfill the site. The soil used for backfilling includes the soil from the retention layer area.

[0073] like Figure 5 and Figure 6 As shown, the boundary marking module includes a carrier 1 and a drilling mechanism 2 and a pole assembly 3 arranged on the carrier 1. The carrier 1 in this embodiment is preferably an AGV carrier. In addition, in some other embodiments, if the flatness of the site is poor, other carriers with higher chassis can be used as the carrier 1, or a soil leveling device can be added to the front end of the carrier 1 in this embodiment to flatten the soil in front of the carrier 1. A flexible enclosure assembly 4 is provided inside the pole assembly 3, and a mechanical arm 1 5 and a mechanical arm 2 6 are fixedly provided on the front and rear sides of the carrier 1, respectively. The drilling mechanism 2 is used to open a plug hole at the excavation boundary, the mechanical arm 1 5 is used to insert the pole assembly 3 on the carrier 1 into the plug hole, and the mechanical arm 2 6 is used to connect the enclosure assembly 4 in one pole assembly 3 with another pole assembly 3, so as to form an enclosed mark on the excavation boundary. The above-mentioned excavation boundary is the boundary line of the soil corresponding to each sub-area of ​​the site, and the line width of the boundary line is greater than the width of the carrier 1, so that the carrier 1 can travel on the excavation boundary and mark.

[0074] like Figures 6 - 10As shown in the figure, a storage mechanism 7 is provided on the carrier mechanism 1. The storage mechanism 7 includes a trumpet-shaped ceiling 71 and a slide rail 72 fixedly arranged on the ceiling 71. The lower end of the slide rail 72 is open, and the slide rail 72 winds downward in a spiral shape from the top of the ceiling 71, and the lower end of the slide rail 72 bends and extends radially toward the ceiling 71. A number of vertical rod assemblies 3 are suspended below the slide rail 72, and a stop block 73 for stopping the vertical rod assemblies 3 is provided at the lower end of the slide rail 72. The stop block 73 is fixedly arranged at the inner bottom of the lower end of the slide rail 72. A plurality of support rods 74 are fixedly arranged on the outer periphery of the bottom of the ceiling 71, and a limiting cylinder corresponding to the support rods 74 is fixedly arranged on the carrier mechanism 1. The support rods 74 and the limiting cylinder are inserted into each other. A vibration mechanism 8 is provided on the carrier mechanism 1. The vibration mechanism 8 includes a base 81 fixedly arranged on the top of the carrier mechanism 1, a vibrating member 82 spring-connected above the base 81, and a vibration source arranged on the top of the vibrating member 82. The vibration source is preferably a vibration motor 83. The vibrating member 82 is composed of a top plate and a trumpet-shaped side plate fixedly arranged on the outer periphery of the top plate. The vibrating member 82 acts on the vertical rod assemblies 3 suspended on the slide rail 72 to move the vertical rod assemblies 3 downward along the slide rail 72. The drilling mechanism 2 includes a horizontal linear drive member 21 arranged on one side in the width direction of the carrier mechanism 1, a vertical linear drive member 22 fixedly arranged at the output end of the horizontal linear drive member 21, and a drill 23 fixedly arranged at the output end of the vertical linear drive member 22.

[0075] Before marking the excavation boundary, the carrier mechanism 1 communicates with the above-mentioned excavation boundary generation module to obtain the excavation boundary coordinates. When marking the excavation boundary, the carrier mechanism 1 determines its own position information based on Beidou positioning or GPS positioning, travels along the excavation boundary, and marks the excavation boundary through the cooperation of the drilling mechanism 2, the first robotic arm 5, and the second robotic arm 6. After the middle part of the vehicle body of the carrier mechanism 1 is aligned with an excavation boundary coordinate, the horizontal linear drive member 21 moves the vertical linear drive member 22 and the drill 23 to the middle part of the vehicle body of the carrier mechanism 1. The vertical linear drive member 22 cooperates with the drill 23 to open an insertion hole at this excavation boundary coordinate, and the vertical linear drive member 22 and the drill 23 are reset and move away from the middle part of the vehicle body of the carrier mechanism 1. The vibration motor 83 causes the vibrating member 82 to vibrate, and the vertical rod assemblies 3 move downward along the spiral slide rail 72 under the action of vibration. One of the vertical rod assemblies 3 reaches the lower end of the slide rail 72 and is intercepted by the stop block 73. The first robotic arm 5 moves the vertical rod assembly 3 at the lower end of the slide rail 72 upward to make it get rid of the stopping effect of the stop block 73. Then the first robotic arm 5 moves the vertical rod assembly 3 out of the opening of the slide rail 72 and inserts it into the insertion hole.

[0076] Before the carrier mechanism 1 continues to move forward, the second robotic arm 6 grips one end of the enclosure component 4. During the forward movement of the carrier mechanism 1, the second robotic arm 6 gradually pulls the enclosure component 4 out of the vertical rod component 3. After the next vertical rod component 3 is inserted into the next jack, the second robotic arm 6 connects the enclosure component 4 of the previous vertical rod component 3 to the vertical rod component 3 at the current position of the carrier mechanism 1. According to the above process, the excavation boundary is marked using the vertical rod component 3 and the enclosure component 4. The vibration mechanism 8 cooperates with the storage mechanism 7 to move the vertical rod component 3 and align the vertical rod component 3 at the lower end of the slide rail 72. Drilling, inserting the vertical rod component 3, and gripping the enclosure component 4 are all in-situ operations, and the carrier mechanism 1 remains stationary, improving the convenience and operation accuracy of moving the vertical rod component 3 and the enclosure component 4.

[0077] In addition, the vibration mechanism 8 further includes a lifting component 84 fixedly arranged on the base 81. The lifting component 84 is preferably an electric push rod, and a support plate 85 is fixedly arranged inside the middle of the vibrating part 82. When the vibration motor 83 is in the working state, the lifting component 84 is in the contracted state. When the vibration motor 83 is in the non-working state, the lifting component 84 is in the stretched state. The upper end of the lifting component 84 abuts against the support plate 85 to support the vibrating part 82 and the vibration motor 83, reducing the spring fatigue condition between the vibrating part 82 and the base 81 and prolonging the service life of the device.

[0078] Specifically, as Figure 8 and Figure 11 shown, the vertical rod component 3 includes a support 31, an insertion rod 32 fixedly arranged at the bottom of the support 31, a rod body 33 fixedly arranged at the top of the support 31, and a hanging part 34 arranged at the top of the rod body 33 and capable of hanging inside the slide rail 72. A gap for the hanging part 34 to pass through is formed between the top of the stop block 73 and the top of the lower end of the slide rail 72. When using the vertical rod component 3 to mark the excavation boundary, the insertion rod 32 of the vertical rod component 3 is inserted into the jack, and the support 31 contacts the ground, making the vertical rod component 3 more stable and preventing the vertical rod component 3 from tilting when pulling the enclosure component 4. The hanging part 34 is preferably a roller, which is connected to the top of the rod body 33 through a damping shaft. In the non-working state of the vibration mechanism 8, the vertical rod component 3 and the slide rail 72 remain stationary, reducing the pressure on the stop block 73 at the lower end of the slide rail 72. In addition, in some other embodiments, the hanging part 34 can also be connected to the rod body 33 through a hinge shaft with less friction, and the vibration mechanism 8 is cancelled. At this time, the device structure is relatively simple and cost-saving, but there may be a situation where the vertical rod component 3 cannot reach the position smoothly.

[0079] Furthermore, a plug block 35 corresponding to the number of layers is slidably provided on one side wall of the rod body 33, the tail of the plug block 35 is slidably connected to the side wall of the rod body 33, a slide groove 36 is provided inside the head of the plug block 35, and a return spring is provided between the plug block 35 and the rod body 33. One end of the return spring is fixed to the head of the plug block 35, and the other end is fixed to the side wall of the rod body 33 connected to the tail of the plug block 35. A locking block 37 is slidably provided inside the slide groove 36, and the locking block 37 is spring-connected to the bottom of the slide groove 36, and a locking groove 38 corresponding to the locking block 37 is provided on the other side wall of the rod body 33. When the plug block 35 moves toward the inside of the rod body 33, the slide groove 36 is aligned with the locking groove 38, and the locking block 37 is inserted into the locking groove 38, so that the plug block 35 indicates the depth of the outer transport layer area. After the vertical pole assembly 3 is inserted into the jack, part of the plug block 35 is pushed into the inside of the rod body 33 by the mechanical arm 15. In this embodiment, six plugs 35 are arranged on the rod body 33, and the six plugs 35 have different heights. Each plug 35 corresponds to the six layers of the sub-area, and the plugs 35 inserted into the rod body 33 are used to represent the external transport layer, and the plugs 35 not inserted into the rod body 33 are used to represent the layer that does not need to transport the soil out. In addition, in some other embodiments, the plugs 35 not inserted into the rod body 33 can also be used to represent the external transport layer, and the number of the plugs 35 can be changed according to actual needs.

[0080] like Figure 12 and Figure 13 As shown, the enclosure assembly 4 includes an upper plate body 41 and a lower plate body 42 fixed inside the rod body 33, a rotating shaft 43 is rotatably arranged between the upper plate body 41 and the lower plate body 42, a flexible enclosure belt 44 is wound around the rotating shaft 43, one end of the enclosure belt 44 is fixed on the rotating shaft 43, and a clamping member 45 is fixed on the other end of the enclosure belt 44, the clamping member 45 passes through one side of the rod body 33, and a clamping block 46 is fixed on the outer surface of the other side of the rod body 33. A T-shaped slot is arranged on the clamping block 46, and the clamping member 45 is in an I-shaped shape, and one end of the clamping member 45 can be embedded in the T-shaped slot of the clamping block 46.

[0081] The mechanical arm 2 6 clamps the clamping piece 45 on the pole assembly 3 at one coordinate of the excavation boundary. During the movement of the carrier 1, the mechanical arm 2 6 gradually pulls the enclosure belt 44 out of the rod body 33. After the carrier 1 arrives near another coordinate of the excavation boundary, it is inserted into another pole assembly 3, and the mechanical arm 2 6 clamps the clamping piece 45 into the block 46 on the other pole assembly 3. In addition, a reset piece 47 is provided on the rotating shaft 43. In this embodiment, the reset piece 47 is preferably a spring. The reset piece 47 can keep the enclosure belt 44 leaving the rod body 33 in a taut state, and can reset the enclosure belt 44 and the rod body 33 when the clamping piece 45 and the block 46 are separated.

[0082] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A method for demarcating a site contaminated soil hazardous waste remediation area, characterized in that: The following steps are involved: Divide the site into multiple layers along the depth direction, set up several sampling points in each layer of the site, and obtain the toxic substance content data of each sampling point; Projecting each sampling point onto the same horizontal site plane, and using the Thiessen polygon algorithm to divide the site plane into multiple sub-areas; For sampling points with missing toxic substance content data, the Kriging interpolation algorithm is used to interpolate them so that each layer in each sub-area has toxic substance content data; According to the toxic substance content data, the layers in each sub-area are divided into transport layers, retention layers and non-excavation layers. The sub-areas with the same lower limit of restoration depth, adjacent to each other and without retention layers are merged into composite areas. The excavation boundary coordinates are set based on the remaining sub-areas and composite areas after the merger. The excavation boundary of the site is delineated according to the excavation boundary coordinates.

2. The method for demarcating the area for remediation of contaminated soil and hazardous waste on a site according to claim 1 is characterized by: The transport layer is a layer where the content of toxic substances in the soil exceeds the standard. The bottom of the lowest transport layer is the lower limit of the remediation depth. The retained layer is a layer where the content of toxic substances in the soil does not exceed the standard and is higher than the lower limit of the remediation depth. The non-excavation layer is a layer where the content of toxic substances in the soil does not exceed the standard and is lower than the lower limit of the remediation depth.

3. The method for demarcating the area for remediation of contaminated soil and hazardous waste on a site according to claim 1 is characterized by: The toxic substances are divided into the following five categories: highly toxic substances, toxic substances, carcinogenic substances, mutagenic substances and reproductive toxic substances; and the export zone includes the zone where the content of a single type of toxic substance reaches the corresponding threshold, and the zone containing two or more different toxic substances and meeting the following formula: in, is the content of highly toxic substances in the soil. is the standard value of highly toxic substances in soil, a is the number of highly toxic substances, PT,j is the content of toxic substances in the soil, LT is the standard value of toxic substances in soil, b is the number of toxic substances, PCarc,k is the content of carcinogenic substances in the soil. LCarc is the standard value of carcinogenic substances in soil, c is the number of carcinogenic substances, PMuta,m is the content of mutagenic substances in the soil, LMuta is the standard value of mutagenic substances in soil, d is the number of mutagenic substances, PTera,n is the content of reproductive toxic substances in the soil, LTeta is the standard value of reproductive toxic substances in soil, e is the number of reproductive toxic substances.

4. A device for demarcating areas for the remediation of hazardous wastes from contaminated soil on a site, characterized in that: include: Soil sampling and analysis module, used to conduct stratified sampling of the site and obtain data on the toxic substance content at each sampling point; A site plane division module is used to project each sampling point into the same horizontal site plane, and divide the site plane into multiple sub-areas using a Thiessen polygon algorithm; The layer division module is used to interpolate the sampling points with missing toxic substance content data through the Kriging interpolation algorithm, so that each layer in each sub-area has toxic substance content data; The excavation boundary generation module is used to divide each layer area in each sub-area into an external transport layer area, a reserved layer area and a non-excavation layer area according to the toxic substance content data, merge the sub-areas with the same lower limit of the restoration depth, which are adjacent to each other and do not have a reserved layer area into a composite area, and set the excavation boundary coordinates based on the remaining sub-areas and composite areas after the merger; The boundary marking module is used to define the excavation boundary of the site according to the excavation boundary coordinates.

5. The device for demarcating areas for remediation of contaminated soil and hazardous waste on a site according to claim 4 is characterized by: The boundary marking module comprises a transport mechanism (1) and a drilling mechanism (2) and a pole assembly (3) arranged on the transport mechanism (1); a flexible enclosure assembly (4) is arranged inside the pole assembly (3); a mechanical arm 1 (5) and a mechanical arm 2 (6) are respectively arranged on the front and rear sides of the transport mechanism (1); the drilling mechanism (2) is used to open a plug hole at the excavation boundary; the mechanical arm 1 (5) is used to insert the pole assembly (3) into the plug hole; and the mechanical arm 2 (6) is used to connect the enclosure assembly (4) in one pole assembly (3) with another pole assembly (3) so as to form an enclosing mark on the excavation boundary.

6. The device for demarcating areas for remediation of contaminated soil and hazardous wastes on a site according to claim 5 is characterized by: The transport mechanism (1) is provided with a storage mechanism (7), the storage mechanism (7) comprising a trumpet-shaped ceiling (71) and a slide rail (72) fixedly arranged on the ceiling (71), the slide rail (72) spirally meandering downward from the top of the ceiling (71), and the lower end of the slide rail (72) radially bends and extends toward the ceiling (71), a plurality of vertical pole assemblies (3) are suspended below the slide rail (72), and a stopper (73) for stopping the vertical pole assemblies (3) is provided at the lower end of the slide rail (72).

7. The device for demarcating areas for remediation of contaminated soil and hazardous wastes on a site according to claim 6 is characterized by: The drilling mechanism (2) comprises a transverse linear driving member (21) arranged on one side of the carrying mechanism (1) in the width direction, a vertical linear driving member (22) fixedly arranged at the output end of the transverse linear driving member (21), and a drilling device (23) fixedly arranged at the output end of the vertical linear driving member (22).

8. The device for demarcating areas for remediation of contaminated soil and hazardous wastes on a site according to claim 6 is characterized by: The device also includes a vibration mechanism (8), the vibration mechanism (8) including a base (81) fixedly mounted on the top of the carrier mechanism (1), a vibration member (82) spring-connected to the top of the base (81), and a vibration source arranged on the top of the vibration member (82), the vibration member (82) being used for the vertical rod assembly (3) suspended on the slide rail (72) so that the vertical rod assembly (3) moves downward along the slide rail (72).

9. The device for demarcating areas for remediation of contaminated soil and hazardous wastes on a site according to claim 6, characterized in that: The vertical pole assembly (3) comprises a support (31), an insertion rod (32) fixed to the bottom of the support (31), a rod body (33) fixed to the top of the support (31), and a hanging piece (34) arranged at the top of the rod body (33) and capable of being hung on the inner side of a slide rail (72), and a gap is formed between the top of the stopper (73) and the top of the lower end of the slide rail (72) for the hanging piece (34) to pass through.

10. The device for demarcating areas for remediation of contaminated soil and hazardous wastes on a site according to claim 9, characterized in that: An insert block (35) corresponding to the number of the layer areas is slidably provided on one side wall of the rod body (33), a sliding groove (36) is provided on the inner side of the insert block (35), a locking block (37) is slidably provided on the inner side of the sliding groove (36), and the locking block (37) is spring-connected to the bottom of the sliding groove (36), and a locking groove (38) corresponding to the locking block (37) is provided on the other side wall of the rod body (33). When the insert block (35) moves toward the inside of the rod body (33) so that the sliding groove (36) is aligned with the locking groove (38), the locking block (37) is embedded in the locking groove (38), so that the insert block (35) indicates the depth of the outer transport layer area.

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