A kind of urban residual mud and slag pile body and its construction method in ecological restoration project

Abstract

The present application relates to the field of filling engineering technology, and in particular to an urban sludge and slag pile in an ecological restoration project and its construction method, which includes a pile formed by filling with construction waste soil and several groups of support bodies embedded in the pile, wherein the several groups of support bodies are distributed in a staggered array along the plane of the pile; the support bodies are stacked from bottom to top, and the support bodies include support plates vertically embedded in the pile and limiting plates integrally formed at the bottom of the support plates, and the support plates of the same group of support bodies are vertically stacked and fixed and have a vertical settlement margin L, L is greater than the settlement height of the pile, and the width of the limiting plates increases from top to bottom. The present application can relatively quickly alleviate the problem of all-directional settlement in the process of filling urban gardens with construction waste soil in the prior art.

Description

Technical Field

[0001] The present application relates to the field of filling engineering technology, and in particular to an urban sludge and slag pile body and a construction method thereof in an ecological restoration project. Background Art

[0002] With the rapid economic development and the continuous expansion of urban scale, more and more urban underground space is being developed. However, the continuous construction of underground buildings, structures, municipal transportation projects, etc. has led to more and more construction waste soil.

[0003] In order to solve the current problem of construction waste soil and transform the ecological environment, the current application of "turning waste into treasure" by using urban construction waste soil to artificially pile up mountain projects or use it as building materials such as urban gardens is becoming more and more widespread.

[0004] However, in actual application, it is different from conventional filling projects. Conventional filling projects are mostly used in fields such as foundation pits, and their overall flatness is relatively good, so conventional compaction schemes can be used. However, when used as filling materials for urban gardens, the final terrain requirements are changeable and undulating, and conventional compaction methods are no longer applicable. If it is natural settlement, it will take too long to compact the fill, resulting in a large difference in height between roads or drainage and the remaining soil of the fill buildings after it is put into use, and even causing fixed buildings to break. Therefore, how to relatively quickly alleviate the directional settlement of the existing technology in the process of filling urban gardens with remaining soil is a problem that urgently needs to be solved. Summary of the invention

[0005] In order to relatively quickly alleviate the problem of all-directional settlement during the filling process of urban gardens with construction surplus soil in the prior art, the present application provides an urban surplus mud and slag pile body and a construction method thereof in an ecological restoration project.

[0006] This application provides an urban sludge and slag pile body and a construction method thereof in an ecological restoration project, which adopts the following technical solutions:

[0007] A kind of urban sludge and slag pile body and construction method in ecological restoration engineering, including a pile body formed by filling with construction surplus soil and a plurality of groups of support bodies embedded in the pile body, wherein the plurality of groups of support bodies are distributed in a staggered array along the plane of the pile body; the support bodies are stacked from bottom to top, and the support bodies include support plates vertically embedded in the pile body and limiting plates integrally formed at the bottom of the support plates, the support plates of the same group of support bodies are vertically stacked and fixed and have a vertical settlement margin L, L is greater than the settlement height of the pile body, and the width of the limiting plates increases successively from top to bottom.

[0008] By adopting the above technical scheme, when in use, the support plates of the staggered support bodies can increase the difficulty of settlement of the buildings by increasing the settlement resistance of the buildings between adjacent groups; at the same time, the increase in the width of the limiting plate from top to bottom will make the settlement of the buildings more toward the position away from the support body, thereby forming a gentle slope, and simultaneously increase the resistance to settlement of the buildings, increase the resistance to settlement or displacement of the buildings vertically and horizontally, and the corresponding settlement of the buildings between adjacent groups of support bodies is relatively smaller, reducing the chain reaction, so as to quickly alleviate the settlement of the building surplus earth in all directions; and even if settlement occurs, the limiting plate can drive the support plate to sink vertically instead of displacing in all directions, so as to maintain the posture of the top support plate, so that the support plate can maintain a state of protruding from the building, so as to achieve the purpose of stable restriction.

[0009] Optionally, at least three guide pins are integrally formed at the bottom of the support plate, and the guide pins are plugged into and vertically slidably engaged with the top of the support plate located at the lower side.

[0010] By adopting the above technical solution, the guide pins can limit the displacement between the vertically adjacent support plates, while maintaining the lateral restriction on the piled body during settlement.

[0011] Optionally, at least one guide pin of the support plate is vertically provided with a support hole that passes through the support plate, and the support hole on the support plate of the same group of support bodies is connected from bottom to top and a scale rod is arranged inside, and the scale rod is provided with a scale for displaying the amount of settlement of the top surface of the top support plate, and the bottom of the scale rod is plugged and fixed to the stabilizing structure layer, and the top of the scale rod can extend out of the top surface of the top support plate.

[0012] By adopting the above technical solution, due to the presence of the limiting plate, when the pile settles, the supporting plate will be driven to sink through the limiting plate. At this time, the supporting plate will sink relative to the scale rod, so that the scale leaked by the scale rod can display the settlement amount of the support plate before and after the settlement in real time, so as to achieve real-time detection effect, while not only relying on the commonly used sensors that need a stable foundation as the installation structure for detection.

[0013] Optionally, the scale rod includes a plurality of scale sections formed by axial plug-in cooperation, and the support plate located at the top is formed with a display hole, and the length of the scale section is smaller than the axial length of the display hole.

[0014] By adopting the above technical solution, if the settlement amount is relatively large, the scale section of the support plate deep at the top can be removed to facilitate primary and secondary observations.

[0015] Optionally, the scale bar is arranged with a color that gradually deepens from top to bottom.

[0016] By adopting the above technical solution, the color of the position where the scale rod leaks out relative to the support plate can be used to more intuitively observe the degree of settlement occurring at the corresponding position.

[0017] Optionally, the bottom surface of the limiting plate is an inclined or curved surface and extends downward from away from the supporting plate toward the supporting plate.

[0018] By adopting the above technical solution, the possibility of voids appearing under the limiting plate due to incomplete filling, which may lead to excessive settlement in the later stage due to construction, can be reduced.

[0019] Optionally, a detection component for detecting the lateral settlement of the building along the slope direction is provided on the side of the support plate, and the detection component includes a vertically arranged detection cable, a follower that follows the lateral displacement of the building, and a display component, the follower is arranged on the detection cable and is used to pull the detection cable to follow the lateral movement of the building, the bottom of the detection cable is fixedly connected to the lowest support plate or the limiting plate, the upper part of the detection cable is wound with a detection shaft rotatably connected to the top support plate, the display component is connected to the detection shaft and displays the lateral displacement of the detection cable according to the number of rotations of the detection shaft.

[0020] By adopting the above technical solution, when the building body undergoes lateral displacement, the detection cable will be driven by the follower to deform laterally. At this time, the detection component can relatively intuitively observe the lateral displacement of the building body by detecting the number of rotations of the detection shaft driven by the detection cable.

[0021] Optionally, two detection cables are provided and the tops of the two detection cables are wound around the detection shaft, and the follower is connected to the two detection cables.

[0022] By adopting the above technical solution, the existence of two detection cables can keep the follower embedded in the building body in a relatively fixed posture, thereby reducing the detection error caused by the change of the follower posture.

[0023] Optionally, the display piece is in a tubular structure and the inner wall is a polygonal column or a pin-shaped structure, one end of the detection shaft is adapted to the inner wall of the display piece and plugged into the display piece, the detection shaft and the display piece are coaxially arranged, the outer wall of the display piece is formed with a display thread in a threaded structure, the outer ring of the display thread is provided with a scale for displaying the lateral displacement of the detection cable, the display piece is threadedly connected to the top of the support plate, and the top of the support plate is provided with a display hole for observing the display thread.

[0024] By adopting the above technical solution, when the detection shaft is driven to rotate by the detection cable, the detection shaft will drive the display part to rotate. The rotating display part will be axially displaced due to the existence of the display thread, so that the scale of the corresponding position of the display hole changes, so as to achieve the purpose of real-time observation of the lateral displacement of the building body.

[0025] In a second aspect, this embodiment further discloses a construction method for a pile of urban sludge and slag in an ecological restoration project, which is applied to the pile of urban sludge and slag in the above-mentioned ecological restoration project, and includes the following steps:

[0026] Placing the supports: the supports are divided into multiple groups, and the supports in the same group are first placed in a staggered distribution at the stacking position to form the supports of the first layer, and the sides of the supports of the first layer are provided with connecting bottom beams;

[0027] Stacking the remaining construction soil: the supporting body is layered, the remaining construction soil is filled on site layer by layer, and the permeable geotextile is placed layer by layer, and the remaining construction soil is piled up near the supporting body, so that the top surface of the surrounding remaining construction soil is higher than the top of the supporting body of the corresponding layer, and then the second layer of supporting body is placed, and the limiting plate of the supporting body placed later can be overlapped with the surrounding remaining construction soil without making the supporting plate completely fit the supporting plate below;

[0028] Repeat the above steps to place the support body and pile up the remaining building soil until the top layer of the support body is stacked and the top layer of the remaining building soil is piled up to form a building body.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] When in use, if the stacking body has a lateral displacement, it will drive the follower cloth to move lateral, and synchronously pull the detection shaft to rotate through the detection cable. At this time, the detection shaft drives the display part to rotate. Since the display thread is threadedly connected to the display screw, the display part will move axially, so that the scale of the display thread corresponding to the display hole position can be observed from the outside, thereby achieving the purpose of displaying the lateral displacement of the stacking body. At the same time, due to the existence of the scale section, the vertical settlement can be displayed synchronously. At the same time, the existence of the support plate and the limiting plate can also synchronously suppress the settlement of the stacking body. Even if settlement occurs, since the width of the limiting plate gradually increases from top to bottom, it can still reduce the impact on the stacking body around the support plate. At this time, the support plate can be used as a road foundation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the planar structure of this embodiment from a top view.

[0032] Figure 2 It is a schematic diagram of the vertical cross-sectional structure along the same group of support bodies.

[0033] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0034] Figure 4 It is a schematic diagram of the cross-sectional structure of the scale section.

[0035] Figure 5 It is a schematic diagram of the lateral structure of the same group of support bodies and detection components.

[0036] Figure 6 It is a schematic diagram of the vertical cross-sectional structure of the uppermost support plate, used to illustrate the matching structure of the display component.

[0037] Explanation of the accompanying drawings: 1. stacking body; 2. supporting body; 21. supporting plate; 210. display cover; 211. guide pin; 212. supporting hole; 213. display hole; 214. guide hole; 215. positioning pile; 216. connecting bottom beam; 217. connecting top beam; 22. limiting plate; 23. scale rod; 231. scale section; 232. connecting pin; 233. connecting hole; 3. detection assembly; 31. detection cable; 311. detection shaft; 32. follower; 321. follower cloth; 33. display member; 331. display thread; 332. display screw; 333. display hole. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-6 This application is described in further detail.

[0039] The present application embodiment discloses a kind of urban sludge and slag pile in ecological restoration project. Figure 1 and Figure 2 The urban sludge and slag pile in the ecological restoration project includes a pile 1, a support 2 and a detection component 3 (not shown in the figure) for detecting the lateral settlement displacement of the pile 1. The pile 1 is formed by using construction waste soil to pile up at a construction site, such as a city park construction site.

[0040] There are multiple support bodies 2 divided into multiple groups. The support bodies 2 are integrally embedded in the building body 1. The multiple groups of support bodies 2 are staggered and distributed along the plane direction of the building body 1, so as to play a lateral restriction role on the building body 1 and reduce the influence of the settlement position on the surrounding side.

[0041] Reference Figure 2As shown in FIG3 , the support bodies 2 are prefabricated, and the support bodies 2 of the same group are arranged in a vertical stack. The support bodies 2 include prefabricated support plates 21 and limiting plates 22, and the support plates 21 and limiting plates 22 are arranged in an integral manner. The support plates 21 are arranged vertically and the support plates 21 of the same group are connected in a vertical stack. The top surface of the limiting plates 22 is arranged horizontally, and the width of the limiting plates 22 of the same group increases from top to bottom, so that when the building 1 vertically settles, the support plates 21 can be synchronously driven to move downward to follow the movement of the building 1; at the same time, the vertical movement margin of the vertically adjacent support plates 21 is L, and the settlement height of the building 1 is M, then L is greater than M, so that the support plates 21 and limiting plates 22 can follow the settlement without structural damage. In addition, the width of the limiting plate 22 increases gradually from top to bottom, which can gradually increase the restriction on the settlement of the building body 1 from top to bottom, so that the limiting plate 22 can limit the settlement of the building body 1 and limit the lateral flow of the building body 1.

[0042] At the same time, in order to allow the plurality of support plates 21 to have a margin for moving vertically following the settlement of the building body 1 when stacked, at least three guide pins 211 are integrally formed at the bottom of the support plate 21. A plurality of guide holes 214 are formed at the top of the support plate 21 below the uppermost support plate 21. The guide holes 214 are arranged one by one corresponding to the guide pins 211, and the depth of the guide holes 214 is greater than or equal to the guide pins 211. The guide pins 211 are inserted and axially slidably arranged, so that the support plate 21 is overlapped and embedded in the building body 1 through the limiting plate 22 and is relatively fixed.

[0043] Reference Figure 2 and Figure 3 In addition, in order to make the stacking arrangement of the support plates 21 more stable, the guide pins 211 are coaxially and vertically penetrated and slidably provided with positioning piles 215 connected to the bottom stable structural layer. The positioning piles 215 can be steel pipe piles or steel pipes, preferably steel pipe piles, and the top of the positioning piles 215 is formed with a hole structure corresponding to the position of the uppermost support plate 21, so that when the support plates 21 follow the settlement of the piled building 1, the support plates 21 have a certain margin of movement relative to the positioning piles 215.

[0044] At the same time, in order to check the settlement of the corresponding area of ​​the pile 1 in real time, one of the positioning piles 215 on the support plate 21 is made of a steel pipe and has a support hole 212 formed inside that vertically penetrates the support plate 21. A scale rod 23 for displaying the settlement of the support plate 21 is arranged in the support hole 212, and the positioning pile 215 of the steel pipe structure is fitted onto the scale rod 23. The top of the scale of the scale rod 23 is the 0 scale starting line, so that when the support plate 21 settles, the scale of the scale rod 23 relative to the support plate 21 is the settlement relative to the initial position.

[0045] Reference Figure 3 and Figure 4Furthermore, the scale rod 23 includes a plurality of scale sections 231 distributed axially along the support hole 212. The scale section 231 is a cylindrical structure and a connecting pin 232 is formed at the bottom end. A connecting hole 233 adapted to the connecting pin 232 is formed at the top of the scale section 231. The connecting pin 232 on the scale section 231 is plugged into the connecting hole 233 of the adjacent scale section 231.

[0046] A display hole 213 is coaxially formed on the inner wall at the top position of the support hole 212, and the depth of the display hole 213 is greater than the length of the scale section 231, so that the scale section 231 can always be located in the display hole 213 during settlement, and the settlement amount of the support plate 21 can be displayed in real time; at the same time, the scale can be synchronously set on the top of the scale section 231 through the inner wall thread or the transparent display cover 210 provided on the top of the display hole 213, so as to display the settlement margin in real time.

[0047] In addition, in order to further facilitate the display of the settlement amount in different areas, the colors of the several scale sections 231 of the scale rod 23 gradually deepen from top to bottom, so as to display the settlement amount of the support plate 21 in real time. If it exceeds the corresponding area, there is no need to check it in real time, and a preliminary judgment can be made directly through the depth of the displayed scale section 231.

[0048] Since a plurality of limiting plates 22 are arranged from top to bottom, in order to reduce the possibility of forming a hollow structure on the lower side of the limiting plates 22 when the building surplus soil is used to fill the pile 1, the bottom surface of the limiting plates 22 is inclined or curved and extends downward from away from the support plate 21 toward the support plate 21. In the embodiment, the bottom of the limiting plates 22 is inclined to facilitate the subsequent filling of the building surplus soil to enter the connection between the limiting plates 22 and the support plates 21, thereby significantly reducing the possibility of the occurrence of hollows.

[0049] Reference Figure 5 and Figure 6 On the other hand, since the piled body 1 is formed by construction surplus soil, in order to significantly reduce the possibility of excessive settlement of the piled body 1, a number of permeable geotextiles are laid in the piled body 1. At the same time, since a number of limiting plates 22 cooperate with the support plates 21, vertical settlement is easily converted into lateral settlement; for this purpose, a detection component 3 for detecting the lateral displacement of the piled body 1 is provided on the side of the same group of support plates 21.

[0050] The detection assembly 3 includes a detection cable 31 and a follower 32. The detection cable 31 can be one, two or more. In this embodiment, two detection cables 31 are provided as an example. The follower 32 includes at least one follower cloth 321. The follower cloth 321 is preferably made of a water-impermeable material, such as a waterproof cloth. It is preferred to provide one follower cloth 321, and the two side edges of the follower cloth 321 in the vertical direction are respectively fixedly connected to the detection cable 31, the bottom of the detection cable 31 is fixedly connected to the bottom of the lowest support plate 21 through the connecting bottom beam 216, and the top of the uppermost support plate 21 is fixedly connected to the connecting top beam 217 corresponding to the connecting bottom beam 216. The interior of the connecting top beam 217 is hollow and rotatably provided with a detection shaft 311, and the detection shaft 311 is rotatably connected to the uppermost support plate 21, and the top ends of the two detection cables 31 are wound around the detection shaft 311 and fixed to the detection shaft 311, so that when the follower cloth 321 follows the flow of the building body 1 and moves laterally, it will pull the detection cable 31 to unwind the detection shaft 311.

[0051] Reference Figure 5 and Figure 6 At the same time, the top surface of the connecting top beam 217 is flush with the top surface of the supporting plate 21, and a display member 33 is also provided in the connecting top beam 217 or the topmost supporting plate 21. The display member 33 is provided on the supporting plate 21 through the connecting top beam 217 or directly provided in the supporting plate 21. In this embodiment, the display member 33 is provided on the supporting plate 21. The display member 33 displays the lateral displacement of the detection cable 31 through the number of rotations of the detection shaft 311, and synchronously reflects the lateral movement of the stacking body 1 at the corresponding position, and combines the scale displayed by the scale section 231 to reflect the vertical settlement and lateral displacement of the corresponding position.

[0052] The display member 33 is a tubular structure and the inner wall is a polygonal column or pin-shaped structure. The end of the detection shaft 311 facing the support plate 21 is adapted to the inner wall of the display member 33 and plugged into the display member 33. The detection shaft 311 and the display member 33 are coaxially arranged so that the display member 33 can be driven to rotate when the detection shaft 311 rotates.

[0053] The outer wall of the display member 33 is formed with a display thread 331 in a threaded structure. The display thread 331 is a trapezoidal thread or a rectangular thread, and a scale for displaying the lateral displacement of the detection cable 31 is provided on the outer ring of the display thread 331. A display screw 332 is embedded on the top of the support plate 21. The display screw 332 is sleeved and threadedly connected to the display thread 331. The length of the display screw 332 is greater than the display member 33 and is partially sleeved on the detection shaft 311. The top surface of one end of the display screw 332 is provided with a display hole 333 corresponding to the display thread 331. The display hole 333 penetrates the support plate 21 upward so that the display hole 333 can observe the scale on the display thread 331.

[0054] When in use, if the stacking body 1 has a lateral displacement, it will drive the follower cloth 321 to move lateral, and synchronously pull the detection shaft 311 to rotate through the detection cable 31. At this time, the detection shaft 311 drives the display member 33 to rotate. Since the display thread 331 is threadedly connected to the display screw 332, the display member 33 will move axially, so that the scale of the display thread 331 corresponding to the display hole 333 can be observed from the outside, thereby achieving the purpose of displaying the lateral displacement of the stacking body 1. At the same time, due to the existence of the scale section 231, the vertical settlement can be displayed synchronously. At the same time, the existence of the support plate 21 and the limiting plate 22 can also synchronously suppress the settlement of the stacking body 1. Even if settlement occurs, since the width of the limiting plate 22 gradually increases from top to bottom, it can still reduce the impact on the stacking body 1 around the support plate 21. At this time, the support plate 21 can be used as a road foundation, etc.

[0055] The present application also discloses a construction method for urban sludge and slag piles in an ecological restoration project. The construction method includes the following steps:

[0056] Placing the support bodies: the support bodies 2 are divided into multiple groups, and the support bodies 2 in the same group are first placed in a staggered distribution at the stacking position to form the first layer of support bodies 2, and the side of the support bodies 2 of the first layer is provided with a connecting bottom beam 216, and the positioning piles 215 are simultaneously passed through the initially placed support bodies 2 and then plugged into the initial stable structural layer, such as a rock layer or a stable soil structural layer.

[0057] Stacking of construction surplus soil: Layered by support body 2, fill the construction surplus soil layer by layer on site and place permeable geotextile layer by layer, and pile up the construction surplus soil near the support body 2 so that the top surface of the surrounding construction surplus soil is higher than the top of the corresponding layer of support body 2. Then place the second layer of support body 2, and make the positioning piles 215 pass through the placed support body 2, so that the limiting plate 22 of the later placed support body 2 can overlap the surrounding construction surplus soil without making the support plate 21 completely fit the support plate 21 below, and at the same time, the guide pin 211 is inserted and matched in the support hole 212 on the top of the support plate 21 below.

[0058] During the stacking process, the detection cable 31 is kept in a vertical state, for example, by a temporary bracket or hanger to keep it in a vertical and taut state. The above steps are repeated until the top support body 2 is stacked. At this time, the detection cable 31 can be set to two sections, one section is pre-fixed and wound around the detection shaft 311, and the other section is kept vertical during the stacking of the building residue as mentioned above. Finally, the two sections of the detection cable 31 are connected and fixed, and the stacking of the top layer of the building residue is completed to form the stacked body 1.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An urban sludge and slag pile in an ecological restoration project, characterized in that: It comprises a piled body (1) formed by filling with construction surplus soil and a plurality of groups of supporting bodies (2) embedded in the piled body (1), wherein the plurality of groups of supporting bodies (2) are distributed in a staggered array along the plane of the piled body (1); The support bodies (2) are stacked from bottom to top, and the support bodies (2) include support plates (21) vertically embedded in the stacked body (1) and limiting plates (22) integrally formed at the bottom of the support plates (21). The support plates (21) of the same group of support bodies (2) are vertically stacked and fixed and have a vertical settlement margin L, L being greater than the settlement height of the stacked body (1), and the width of the limiting plates (22) increases gradually from top to bottom; the side of the support plates (21) A detection assembly (3) for detecting the lateral settlement of a building (1) along a slope direction is provided, the detection assembly (3) comprising a vertically arranged detection cable (31), a follower (32) following the lateral displacement of the building (1), and a display element (33), the follower (32) being arranged on the detection cable (31) and used for pulling the detection cable to follow the lateral movement of the building (1), the bottom of the detection cable (31) being fixedly connected to a support plate (21) or a display element (33) at the lowest end. The detection cable (31) is wound around a detection shaft (311) which is rotatably connected to the top support plate (21) on its upper part; the display element (33) is connected to the detection shaft (311) and displays the lateral displacement of the detection cable (31) according to the number of rotations of the detection shaft (311); the display element (33) is in a tubular structure and the inner wall is a polygonal column or a pin-shaped structure; one end of the detection shaft (311) is adapted to the inner wall of the display element (33) and is plugged in and matched. The display member (33) is coaxially arranged with the detection shaft (311) and the display member (33); the outer wall of the display member (33) is formed with a display thread (331) in a threaded structure; the outer ring of the display thread 331 is provided with a scale for displaying the lateral displacement of the detection cable (31); the display member (33) is threadedly connected to the top of the support plate (21); and the top of the support plate (21) is provided with a display hole (333) for observing the display thread (331).

2. The urban sludge and slag pile in an ecological restoration project according to claim 1, characterized in that: At least three guide pins (211) are integrally formed at the bottom of the support plate (21), and the guide pins (211) are plugged into and vertically slidably matched with the top of the support plate (21) located at the lower side.

3. The urban sludge and slag pile in an ecological restoration project according to claim 2, characterized in that: At least one guide pin (211) of the support plate (21) is vertically provided with a support hole (212) penetrating the support plate (21); the support hole (212) on the support plate (21) of the same group of the support body (2) is through-through from bottom to top and a scale rod (23) is arranged inside; the scale rod (23) is provided with a scale for displaying the amount of settlement of the top surface of the top support plate (21); the bottom of the scale rod (23) is plugged and fixed to the stable structural layer, and the top of the scale rod (23) can extend out of the top surface of the top support plate (21).

4. The urban sludge and slag pile in an ecological restoration project according to claim 3, characterized in that: The scale rod (23) comprises a plurality of scale sections (231) formed by axial plug-in matching, and the support plate (21) located at the top is formed with a display hole (213), and the length of the scale section (231) is smaller than the axial length of the display hole (213).

5. The urban sludge and slag pile in an ecological restoration project according to claim 3, characterized in that: The color of the scale rod (23) gradually deepens from top to bottom.

6. The urban sludge and slag pile in an ecological restoration project according to claim 2, characterized in that: The bottom surface of the limiting plate (22) is an inclined or curved surface and is extended downward from away from the supporting plate (21) toward the supporting plate (21).

7. The urban sludge and slag pile in an ecological restoration project according to claim 1, characterized in that: Two detection cables (31) are provided, and the tops of the two detection cables (31) are wound around the detection shaft (311), and the follower (32) is connected to the two detection cables (31).

8. A construction method for urban sludge and slag piles in an ecological restoration project, characterized in that: Applied to the urban sludge and slag pile in the ecological restoration project as described in any one of claims 3 to 5, the guide pin (211) is coaxially and vertically penetrated and slidably provided with a positioning pile (215) connected to the bottom stable structure layer; The construction method includes the following steps: Placing the support bodies: the support bodies (2) are divided into a plurality of groups, and the support bodies (2) in the same group are first placed in a staggered distribution at the stacking position to form the first layer of support bodies (2), and the side of the support bodies (2) of the first layer is provided with a connecting bottom beam (216), and the positioning piles (215) are simultaneously passed through the initially placed support bodies (2) and then plugged into the initial stable structure layer; Stacking the remaining construction soil: the supporting body (2) is layered, the remaining construction soil is filled on site layer by layer, and the permeable geotextile is placed layer by layer, and the remaining construction soil is stacked near the supporting body (2) so that the top surface of the surrounding remaining construction soil is higher than the top of the supporting body (2) at the corresponding layer; then the second layer of the supporting body (2) is placed, and the positioning piles (215) are passed through the placed supporting body (2), so that the limiting plate (22) of the later placed supporting body (2) can be overlapped with the surrounding remaining construction soil without the supporting plate (21) being completely attached to the supporting plate (21) below, and at the same time, the guide pin (211) is inserted and matched in the supporting hole (212) at the top of the supporting plate (21) below.

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