Recyclable filling retaining wall and its rapid construction method

Abstract

This application discloses a recyclable backfill retaining wall and its rapid construction method, belonging to the field of backfill mining. The recyclable backfill retaining wall includes a recyclable retaining wall structure, a backfill body, and filter elements. The recyclable retaining wall structure is installed on the side of the surrounding rock close to the ore body, extending along the length of the surrounding rock and forming a backfill space with the surrounding rock; the backfill body is installed within the backfill space; the filter elements are installed between the backfill body and the recyclable retaining wall structure, and are located at the bottom and top of the backfill body. The recyclable backfill retaining wall provided by this application, with the recyclable retaining wall structure forming a backfill space extending along the length of the surrounding rock for filling the backfill body, effectively increases the contact area between the backfill body and the recyclable retaining wall structure, thereby effectively dispersing the pressure of the backfill body on the recyclable retaining wall structure, and thus effectively improving the stability and reliability of the recyclable retaining wall structure, ensuring production safety.

Description

Technical Field

[0001] This application relates to the field of backfill mining technology, and in particular to a recyclable backfill retaining wall and a rapid construction method thereof. Background Technology

[0002] Underground mines use materials such as tailings and cement to prepare backfill slurry, which is then transported underground to fill the mined-out areas. This forms a backfill entity in the underground voids to support the roof and floor of the mining area, maintain the stability of the surrounding rock, and improve the mechanical environment during underground mining. It is an important mining technique known as backfill mining.

[0003] With the continuous advancement of backfill mining technology, the structural design of retaining walls is also constantly evolving and optimizing to meet the sealing needs of different types of goaf areas. Currently, the most commonly used retaining wall structures include wooden retaining walls, concrete retaining walls, brick retaining walls, and prefabricated retaining walls made of metal components.

[0004] The essence of existing technology is to set up a "plug" or "dam" at the exit of the stope, which passively bears all the slurry pressure from inside the stope, concentrating all mechanical and sealing problems in a narrow area. This concentrated stress can easily lead to the sudden failure of the retaining wall, resulting in serious production safety problems. Summary of the Invention

[0005] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a recyclable filling retaining wall.

[0006] To solve the above-mentioned technical problems, this application provides: A recyclable infill retaining wall, comprising: A recyclable retaining wall structure is installed on the side of the surrounding rock close to the ore body. The recyclable retaining wall structure extends along the length of the surrounding rock and forms a filling space with the surrounding rock. A filling body is disposed within the filling space; A filter element is disposed between the filling body and the recyclable retaining wall structure, and is disposed at the bottom and top of the filling body; The recyclable retaining wall structure includes a first sealing section, a second sealing section, and a third sealing section that are detachably connected. The second sealing section extends along the length direction of the surrounding rock, and the first sealing section and the third sealing section both extend along the length direction perpendicular to the surrounding rock. The filter element includes a first filter section, a second filter section, a third filter section, a fourth filter section, and a fifth filter section connected together. The first filter section is disposed on the side of the first sealing section near the filling body, the second filter section is disposed on the side of the second sealing section near the filling body, the third filter section is disposed on the side of the third sealing section near the filling body, the fourth filter section is disposed at the bottom of the filling body, and the fifth filter section is disposed at the top of the filling body.

[0007] In addition, the recyclable backfill retaining wall according to this application may also have the following additional technical features: In some embodiments of this application, the recyclable filling retaining wall further includes a compactor disposed on the side of the fourth filter section near the filling body.

[0008] In some embodiments of this application, the recyclable retaining wall structure includes a recyclable template assembly and a recyclable support assembly. The recyclable template assembly is disposed on the side of the surrounding rock close to the ore body and forms the filling space with the surrounding rock. The recyclable support assembly is disposed on the side of the recyclable template assembly away from the surrounding rock and is detachably connected to the recyclable template assembly. There is a gap between the recyclable support assembly and the recyclable template assembly. The recyclable template assembly is composed of multiple recyclable retaining wall templates spliced ​​together, with any two adjacent recyclable retaining wall templates snapped together, and the recyclable retaining wall templates having multiple water filtering holes.

[0009] In some embodiments of this application, the recyclable support assembly includes a base, a lifting adjuster, a vertical support member, and a horizontal support member. The base is disposed on the bottom surface of the mining area, the lifting adjuster is disposed on the base, the vertical support member is movably connected to the base, the output end of the lifting adjuster is connected to the vertical support member, the end of the vertical support member away from the lifting adjuster abuts against the top surface of the mining area, and the horizontal support member is detachably connected to both the vertical support member and the recyclable template assembly. The base has multiple first friction protrusions at one end near the bottom of the mining area, and the vertical support has multiple second friction protrusions at one end near the top of the mining area.

[0010] In some embodiments of this application, a support base plate is provided at the end of the base away from the bottom surface of the mining area, and the lifting adjuster is disposed on the support base plate; The base is provided with a baffle at the end away from the bottom surface of the mining area, the lifting adjuster is located between the supporting base plate and the baffle, and the baffle is inclined from the top to the bottom; The fifth filter section is provided with a top fixator on the side away from the filling body, and the top fixator is used to fix it to the top surface of the mining area.

[0011] In some embodiments of this application, the recyclable support assembly further includes an isolation protection element disposed on the bottom surface of the mining area and on the outer periphery of the base.

[0012] In some embodiments of this application, the recyclable support assembly further includes fasteners. The vertical support is formed by detachably connecting multiple columns. One of two adjacent columns is provided with a slot, and the other column is provided with a protrusion that matches the slot. The slot wall is provided with multiple first through holes spaced apart vertically, and the protrusion is provided with multiple second through holes spaced apart vertically. The fastener passes through any of the first through holes and any of the second through holes.

[0013] Secondly, this application also provides a rapid construction method for a recyclable backfill retaining wall, comprising the following steps: Clean up the broken ore on the bottom of the mine; Determine the dimensions of the filling space and the filling material; According to the size of the filling space and the filling body, the recyclable support components are detachably installed on the bottom and top surfaces of the stope, and are spaced apart from the side of the surrounding rock closest to the ore body. The recyclable template assembly is detachably mounted on the side of the recyclable support assembly near the surrounding rock, according to the size of the filling space and the filling body; The filter element is positioned on the side of the recyclable template assembly away from the recyclable support assembly, according to the filling space and the size of the filling body; The filling pipe is installed at the middle position of the top of the filling space, and the filling slurry is filled into the filling space; After the slurry solidifies to form the filling body, the recyclable support component and the recyclable template component are disassembled and recycled.

[0014] In some embodiments of this application, the steps of determining the dimensions of the filling space and the filling body, and detachably installing the recyclable support assembly on the bottom and top surfaces of the stope according to the dimensions of the filling space and the filling body, and spaced apart from the side of the surrounding rock closest to the ore body, include: Determine the length L and width W of the filling space and the filling body, the height H of the filling space, the height h of the filling body, and the bulk density γ liquid; According to the formula P=1 / 2(γ_liquid * h) 2 *W) Calculate the total pressure P on the recyclable template component and the total friction force F on the recyclable support component, satisfying the relationship: F≥P, and obtain the minimum total friction force of the recyclable support component; The minimum number of recyclable support components k is calculated using the formula k=F / (T*μ), where T is the rated pressure of the lifting regulator of a single recyclable support component, and μ is the coefficient of friction. The spacing d between recyclable support components is calculated using the formula d=L / k. Based on the calculated minimum number k of recyclable support components and the arrangement spacing d, the recyclable support components are detachably installed on the bottom and top surfaces of the stope, and spaced apart from the side of the surrounding rock closest to the ore body.

[0015] In some embodiments of this application, the following steps are also included: According to the formula Calculate the maximum bending moment experienced by the recyclable template component. and the point of application of the maximum bending moment ; The lateral support of the recyclable support assembly is set at the point of maximum bending moment Z0.

[0016] Compared to existing technologies, the beneficial effects of this application are: This application proposes a recyclable backfill retaining wall. By placing the recyclable retaining wall structure on the side of the surrounding rock close to the ore body and extending it along the length of the surrounding rock, a backfill space for the backfill material is formed, effectively increasing the contact area between the backfill material and the recyclable retaining wall structure. This effectively disperses the pressure of the backfill material on the recyclable retaining wall structure, thereby improving the stability and reliability of the recyclable retaining wall structure and ensuring production safety. By placing filter elements between the backfill material and the recyclable retaining wall structure, and at the bottom and top of the backfill material, the filter elements block the backfill slurry within the backfill space. Water in the backfill slurry can pass through the filter elements and be discharged through the recyclable retaining wall structure, facilitating rapid dehydration and solidification of the backfill slurry to support the surrounding rock. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This application shows a longitudinal sectional view of a recyclable infill retaining wall in some embodiments; Figure 2 This application shows a schematic cross-sectional view of a recyclable infill retaining wall in some embodiments; Figure 3 The diagram shows a front view of a recyclable infill retaining wall in some embodiments of this application; Figure 4 It shows Figure 2 Enlarged schematic diagram of the structure of section A in the middle; Figure 5 It shows Figure 2 Enlarged schematic diagram of the structure of section B in the middle; Figure 6 It shows Figure 2 Enlarged schematic diagram of the C-section structure.

[0019] Explanation of key component symbols: 100-Recyclable filling retaining wall; 110 - Recyclable retaining wall structure; 111 - First sealing section; 112 - Second sealing section; 113 - Third sealing section; 114 - Recyclable template assembly; 1141 - Recyclable retaining wall template; 115 - Recyclable support assembly; 1151 - Base; 11511 - First friction protrusion; 11512 - Support base plate; 11513 - Baffle; 1152 - Lifting adjuster; 1153 - Vertical support component; 11531 - Second friction protrusion; 11532 - Column; 115321 - Slot; 115322 - Slot protrusion; 115323 - First through hole; 115324 - Second through hole; 1154 - Horizontal support component; 1155 - Isolation and protection component; 1156 - Fastener; 116 - Gap; 120 - Filling space; 130-Filling body; 140 - Filter element; 141 - First filter section; 142 - Second filter section; 143 - Third filter section; 144 - Fourth filter section; 145 - Fifth filter section; 146 - Top retainer; 200 - Surrounding rock; 300 - Mining body; 400 - Bottom surface of the stope; 500 - Top surface of the stope. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] like Figure 1 and Figure 2 As shown, an embodiment of this application provides a recyclable filler wall 100. The recyclable filler wall 100 includes a recyclable filler wall structure 110, a filler body 130, and a filter element 140.

[0026] The recyclable retaining wall structure 110 is disposed on the side of the surrounding rock 200 near the ore body 300. The recyclable retaining wall structure 110 extends along the length of the surrounding rock 200 and forms a filling space 120 with the surrounding rock 200. The filling body 130 is disposed within the filling space 120, and the filter element 140 is disposed between the filling body 130 and the recyclable retaining wall structure 110, and is disposed at the bottom and top of the filling body 130.

[0027] The recyclable retaining wall structure 110 includes a first sealing section 111, a second sealing section 112, and a third sealing section 113 that are detachably connected. The second sealing section 112 extends along the length direction of the surrounding rock 200, while the first sealing section 111 and the third sealing section 113 both extend along the length direction perpendicular to the surrounding rock 200.

[0028] The filter element 140 includes a first filter section 141, a second filter section 142, a third filter section 143, a fourth filter section 144, and a fifth filter section 145 connected together. The first filter section 141 is disposed on the side of the first blocking section 111 near the filling body 130, the second filter section 142 is disposed on the side of the second blocking section 112 near the filling body 130, the third filter section 143 is disposed on the side of the third blocking section 113 near the filling body 130, the fourth filter section 144 is disposed at the bottom of the filling body 130, and the fifth filter section 145 is disposed at the top of the filling body 130.

[0029] The recyclable backfill retaining wall 100 provided in the embodiments of this application, by setting the recyclable backfill retaining wall structure 110 on the side of the surrounding rock 200 close to the ore body 300, and extending the recyclable backfill retaining wall structure 110 along the length direction of the surrounding rock 200, forms a filling space 120 for filling the backfill 130 extending along the length direction of the surrounding rock 200. This effectively increases the contact area between the backfill 130 and the recyclable backfill retaining wall structure 110, thereby effectively dispersing the pressure of the backfill 130 on the recyclable backfill retaining wall structure 110, and thus effectively improving the stability and reliability of the recyclable backfill retaining wall structure 110, ensuring production safety. By placing the filter element 140 between the filling body 130 and the recyclable retaining wall structure 110, and placing it at the bottom and top of the filling body 130, the filter element 140 can block the slurry of the filling body 130 within the filling space 120, and the water in the slurry of the filling body 130 can pass through the filter element 140 and be discharged through the recyclable retaining wall structure 110, thereby facilitating the rapid dehydration and solidification of the slurry of the filling body 130 to support the surrounding rock 200.

[0030] By extending the second sealing section 112 along the length of the surrounding rock 200, and extending the first sealing section 111 and the third sealing section 113 perpendicular to the length of the surrounding rock 200, the first sealing section 111, the second sealing section 112, the third sealing section 113, and the surrounding rock 200 form the filling space 120 for filling the backfill 130. By detachably connecting the first sealing section 111, the second sealing section 112, and the third sealing section 113, they can be disassembled and recycled after the backfill 130 slurry has dehydrated and solidified. This allows the recyclable retaining wall structure 110 to be recycled and reused, effectively reducing costs.

[0031] By setting the first filter section 141 on the side of the first sealing section 111 close to the filling body 130, setting the second filter section 142 on the side of the second sealing section 112 close to the filling body 130, and setting the third filter section 143 on the side of the third sealing section 113 close to the filling body 130, the first filter section 141, the second filter section 142, and the third filter section 143 respectively block the filling body 130 slurry within the filling space 120. The water in the filling body 130 slurry can pass through the first filter section 141, the second filter section 142, and the third filter section 143 and be discharged through the first sealing section 111, the second sealing section 112, and the third sealing section 113 respectively, thereby facilitating the rapid dehydration and solidification of the filling body 130 slurry to support the surrounding rock 200.

[0032] Meanwhile, by placing the fourth filter section 144 at the bottom of the filling body 130 and the fifth filter section 145 at the top of the filling body 130, the slurry of the filling body 130 can be contained within the filling space 120 by the fourth filter section 144 and the fifth filter section 145, preventing leakage of the slurry. On the other hand, water in the slurry of the filling body 130 can be discharged through the fourth filter section 144 and the fifth filter section 145, thereby facilitating the rapid dehydration and solidification of the slurry of the filling body 130 to support the surrounding rock 200.

[0033] For example, the filter element 140 can be a filter cloth, and the first filter section 141, the second filter section 142, the third filter section 143, the fourth filter section 144 and the fifth filter section 145 can be connected by multiple splicing fasteners, or they can be made in one piece.

[0034] In one embodiment of this application, the recyclable filling retaining wall 100 further includes a compactor disposed on the side of the fourth filter section 144 near the filling body 130.

[0035] In this embodiment, a compactor is installed on the side of the fourth filter section 144 near the filling body 130, so that the gravity of the compactor can be used to press the fourth filter section 144 firmly against the bottom surface 400 of the mining area, thereby preventing the fourth filter section 144 from moving and affecting the filling of the slurry in the filling body 130.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment of this application, the recyclable retaining wall structure 110 includes a recyclable template assembly 114 and a recyclable support assembly 115. The recyclable template assembly 114 is disposed on the side of the surrounding rock 200 close to the ore body 300 and forms the filling space 120 with the surrounding rock 200. The recyclable support assembly 115 is disposed on the side of the recyclable template assembly 114 away from the surrounding rock 200 and is detachably connected to the recyclable template assembly 114. There is a gap 116 between the recyclable support assembly 115 and the recyclable template assembly 114.

[0037] In this embodiment, the recyclable template assembly 114 is disposed on the side of the surrounding rock 200 close to the ore body 300 to form the filling space 120 for filling the filler body 130 as described above with the surrounding rock 200.

[0038] By placing the recyclable support component 115 on the side of the recyclable template component 114 away from the surrounding rock 200 and connecting it to the recyclable template component 114, the recyclable template component 114 is stably and reliably positioned on the side of the surrounding rock 200 close to the ore body 300. This keeps the filling space 120 stable and prevents the recyclable template component 114 from being damaged under the pressure of the filling slurry 130, thus ensuring production safety. Simultaneously, by detachably connecting the recyclable support component 115 and the recyclable template component 114, the recyclable support component 115 and the recyclable template component 114 can be disassembled and recycled after the filling slurry 130 has dehydrated and solidified. This allows the recyclable retaining wall structure 110 to be recycled and reused, effectively reducing costs.

[0039] By setting a gap 116 between the recyclable support component 115 and the recyclable template component 114, the overall space occupied by the recyclable retaining wall structure 110 can be effectively increased, thereby increasing the reserved space formed after the recyclable retaining wall structure 110 is removed, providing space for subsequent blasting, and improving blasting efficiency.

[0040] like Figure 2 and Figure 3As shown in the above embodiments of this application, the recyclable template assembly 114 is composed of multiple recyclable retaining wall templates 1141 spliced ​​together. Any two adjacent recyclable retaining wall templates 1141 are snap-fitted together, and each recyclable retaining wall template 1141 has multiple drainage holes. This allows construction personnel to flexibly customize the number and shape of the recyclable retaining wall templates 1141 according to different cross-sections and filling conditions at the mining site, effectively improving the adaptability and efficiency of construction. The multiple drainage holes in the recyclable retaining wall templates 1141 accelerate the dehydration and solidification of the filling material 130 slurry.

[0041] For example, any two adjacent recyclable retaining wall templates 1141 can be connected by connecting clips. The recyclable retaining wall templates 1141 can be made of polypropylene material, which not only has good water permeability and bending resistance, effectively mitigating the risk of damage caused by uneven stress, but also has the advantages of being recyclable, flame retardant, fireproof, corrosion resistant, lightweight, and low in material cost. It can realize the recycling of materials to reduce the overall production cost, and the lightweight material makes the construction operation simple, which helps to reduce the labor intensity of workers.

[0042] like Figure 2 and Figure 3 As shown in the above embodiments of this application, the recyclable support assembly 115 includes a base 1151, a lifting adjuster 1152, a vertical support member 1153, and a horizontal support member 1154. The base 1151 is disposed on the bottom surface 400 of the mining area, the lifting adjuster 1152 is disposed on the base 1151, the vertical support member 1153 is movably connected to the base 1151, the output end of the lifting adjuster 1152 is connected to the vertical support member 1153, and one end of the vertical support member 1153 away from the lifting adjuster 1152 abuts against the top surface 500 of the mining area. The horizontal support member 1154 is detachably connected to the vertical support member 1153 and the recyclable template assembly 114, respectively.

[0043] In this embodiment, a base 1151 is disposed on the bottom surface 400 of the stope, a lifting adjuster 1152 is disposed on the base 1151, and a vertical support 1153 is movably connected to the base 1151. By connecting the output end of the lifting adjuster 1152 to the vertical support 1153, the height position of the vertical support 1153 relative to the base 1151 can be finely adjusted by the lifting adjuster 1152, so that the end of the vertical support 1153 away from the lifting adjuster 1152 abuts against the top surface 500 of the stope, thereby making the recyclable support assembly 115 stably disposed within the stope. By setting the lifting adjuster 1152, it can adapt to stopes of different heights and sizes, effectively improving adaptability. By setting a transverse support 1154 connected to the vertical support 1153 and the recyclable template assembly 114 respectively, the structural strength of the recyclable support assembly 115 is further improved, thereby further improving the support stability and reliability of the recyclable support assembly 115 for the recyclable template assembly 114.

[0044] Meanwhile, by detachably connecting the horizontal support 1154 to the vertical support 1153 and the recyclable template assembly 114, the vertical support 1153, horizontal support 1154, and recyclable template assembly 114 can be disassembled and recycled after the filling slurry 130 has dehydrated and solidified. This allows the recyclable retaining wall structure 110 to be recycled and reused, effectively reducing costs. The base 1151 is set on the bottom surface 400 of the stope. By setting the lifting regulator 1152 on the base 1151, a certain distance is maintained between the lifting regulator 1152 and the bottom surface 400 of the stope, thereby preventing the lifting regulator 1152 from directly contacting the moisture on the bottom surface 400 of the stope and causing damage to the lifting regulator 1152.

[0045] For example, the lifting adjuster 1152 can be a linear drive component such as a hydraulic cylinder or a pneumatic cylinder. The connection between the lateral support 1154, the vertical support 1153, and the recyclable template assembly 114 can all be a snap-fit ​​connection or a fastening connection.

[0046] like Figure 2 and Figure 5 As shown in the above embodiments of this application, the base 1151 is provided with a plurality of first friction protrusions 11511 at one end near the bottom surface 400 of the mining area, and the vertical support 1153 is provided with a plurality of second friction protrusions 11531 at one end near the top surface 500 of the mining area.

[0047] In this embodiment, multiple first friction protrusions 11511 are provided at one end of the base 1151 near the bottom surface 400 of the mining area to increase the friction between the base 1151 and the bottom surface 400 of the mining area, and multiple second friction protrusions 11531 are provided at one end of the vertical support 1153 near the top surface 500 of the mining area to increase the friction between the vertical support 1153 and the top surface 500 of the mining area, thereby improving the overall installation stability and reliability of the recyclable support assembly 115.

[0048] like Figure 2 and Figure 6 As shown in the above embodiment of this application, a support base plate 11512 is provided at the end of the base 1151 away from the bottom surface 400 of the mining area, and the lifting adjuster 1152 is disposed on the support base plate 11512. This arrangement further increases the distance between the lifting adjuster 1152 and the bottom surface 400 of the mining area, thereby further reducing the probability of damage to the lifting adjuster 1152 due to direct contact between the lifting adjuster 1152 and moisture on the bottom surface 400 of the mining area.

[0049] like Figure 2 and Figure 6 As shown in the above embodiments of this application, the support assembly further includes an isolation and protection component 1155, which is disposed on the bottom surface 400 of the mining area and on the outer periphery of the base 1151. This arrangement effectively isolates the base 1151 from the grout leakage, protecting the base 1151 and enabling it to be recycled and reused, thus effectively reducing costs.

[0050] For example, the material of the isolation and protection component 1155 can be a disposable or reusable airbag. After the airbag is inflated, it surrounds the bottom of the base 1151, which can effectively isolate the base 1151 from the slurry leakage. When recycling, the air in the airbag is released to recycle the base 1151.

[0051] like Figure 2 and Figure 4 As shown in the above embodiments of this application, the recyclable support assembly 115 further includes a fastener 1156. The vertical support member 1153 is detachably connected by a plurality of columns 11532. One of two adjacent columns 11532 is provided with a slot 115321, and the other column 11532 is provided with a protrusion 115322 that matches the slot 115321. The groove wall of the slot 115321 is provided with a plurality of first through holes 115323 arranged vertically at intervals. The protrusion 115322 is provided with a plurality of second through holes 115324 arranged vertically at intervals. The fastener 1156 passes through any of the first through holes 115323 and any of the second through holes 115324.

[0052] This allows multiple columns 11532 to be detachably connected, so that after the filling slurry 130 is dehydrated and solidified, the multiple columns 11532, the horizontal support 1154 and the recyclable template assembly 114 can be disassembled and recycled, so that the recyclable retaining wall structure 110 can be recycled and reused, effectively reducing costs.

[0053] Meanwhile, this allows construction personnel to select the appropriate fasteners 1156 to be inserted into the corresponding first through hole 115323 and second through hole 115324 based on the height of the stope during on-site installation. This allows for further adjustment of the overall height of the vertical support 1153, facilitating the use of the lifting adjuster 1152 to bring the top of the vertical support 1153 into contact with the top surface 500 of the stope. Consequently, the recyclable support assembly 115 is stably installed within the stope, further enhancing its adaptability.

[0054] For example, fastener 1156 may be a pin, fastening bolt or fastening screw.

[0055] like Figure 2 and Figure 6 As shown in the above embodiment of this application, a baffle 11513 is provided at the end of the base 1151 away from the bottom surface 400 of the stope. The lifting adjuster 1152 is located between the supporting base plate 11512 and the baffle 11513. The baffle 11513 is inclined from top to bottom. A top fixer 146 is provided on the side of the fifth filter section 145 away from the filling body 130. The top fixer 146 is used to fix it to the top surface 500 of the stope.

[0056] In this embodiment, a baffle 11513 is provided at the end of the base 1151 away from the bottom surface 400 of the mining area. The lifting regulator 1152 is positioned between the supporting base plate 11512 and the baffle 11513. The baffle 11513 is inclined from top to bottom to cover the top of the lifting regulator 1152, thereby preventing moisture filtered from the top from damaging the lifting regulator 1152. The baffle is inclined from top to bottom to act as a guide, facilitating the removal of moisture from the lifting regulator 1152 and further reducing the probability of damage to the lifting regulator 1152.

[0057] By providing a top fixing device 146 for fixing the fifth filter section 145 to the top surface 500 of the stope on the side of the fifth filter section 145 away from the filling body 130, the fifth filter section 145 is stably maintained on top of the filling body 130, thereby ensuring the blocking function of the fifth filter section 145 against the slurry of the filling body 130 and the filtering function against moisture. For example, the top fixing device 146 can be a hook, which is attached and fixed to the top surface 500 of the stope.

[0058] Embodiments of this application also provide a rapid construction method for a recyclable backfill retaining wall, the rapid construction method comprising the following steps: S101: Clean up the broken ore at the bottom 400 of the mining area.

[0059] S102: Determine the dimensions of the filling space 120 and the filling body 130.

[0060] S103: The recyclable support assembly 115 is detachably installed on the bottom surface 400 and the top surface 500 of the stope according to the size of the filling space 120 and the filling body 130, and is spaced apart from the side of the surrounding rock 200 near the ore body 300.

[0061] S104: The recyclable template assembly 114 is detachably disposed on the side of the recyclable support assembly 115 near the surrounding rock 200, according to the dimensions of the filling space 120 and the filling body 130.

[0062] S105: The filter element 140 is disposed on the side of the recyclable template assembly 114 away from the recyclable support assembly 115 according to the dimensions of the filling space 120 and the filling body 130.

[0063] S106: The filling pipe is installed at the middle position of the top of the filling space 120, and the filling slurry is filled into the filling space 120.

[0064] S107: After the slurry solidifies to form the filling body 130, the recyclable support component 115 and the recyclable template component 114 are disassembled and recycled.

[0065] Specifically, by clearing the broken ore from the bottom surface 400 of the stope, the flatness of the bottom surface 400 of the stope is improved, thereby ensuring the stability and reliability of the installation of the recyclable support component 115 and the recyclable template component 114. After clearing the crushed ore from the bottom surface 400 of the stope, the dimensions of the filling space 120 and the filling body 130 are determined. Based on the dimensions of the filling space 120 and the filling body 130, the total pressure on the recyclable template assembly 114 is calculated to obtain the total support force required by the recyclable template assembly 114. Since the recyclable support assembly 115 is in contact with the bottom surface 400 and the top surface 500 of the stope respectively, the support force of a single recyclable support assembly 115 on the recyclable template assembly 114 can be calculated using the friction force generated by the contact. Thus, the number of recyclable support assemblies 115 and the spacing between them are calculated. Based on the calculation results, multiple recyclable support assemblies 115 are detachably set on the bottom surface 400 and the top surface 500 of the stope in sequence, and the recyclable template assembly 114 is detachably set on the side of the multiple recyclable support assemblies 115 near the surrounding rock 200.

[0066] By positioning the filter element 140 on the side of the recyclable template assembly 114 away from the recyclable support assembly 115, the filter element 140 effectively traps the slurry of the filling body 130 within the filling space 120. Meanwhile, moisture in the slurry of the filling body 130 can pass through the filter element 140 and be discharged through the recyclable template assembly 114, facilitating rapid dehydration and solidification of the slurry to support the surrounding rock 200. By placing the filling pipe at the center of the top of the filling space 120, the filling slurry can be more evenly filled throughout the entire filling space 120. After the slurry solidifies to form the filling body 130, the recyclable support assembly 115 and the recyclable template assembly 114 are disassembled and recycled for reuse, effectively reducing costs.

[0067] In the above embodiments of this application, the steps of determining the dimensions of the filling space 120 and the filling body 130, and detachably installing the recyclable support assembly 115 on the bottom surface 400 and the top surface 500 of the stope according to the dimensions of the filling space 120 and the filling body 130, and spaced apart from the side of the surrounding rock 200 near the ore body 300, include: S1021: Determine the length L and width W of the filling space 120 and the filling body 130, the height H of the filling space 120, the height h of the filling body 130, and the bulk density γ liquid. Specifically, γ liquid is the bulk density of the filling body in the slurry state before solidification and dewatering.

[0068] S1031: According to the formula P=1 / 2(γ_liquid * h) 2 *W) Calculate the total pressure P on the recyclable template assembly 114 and the total friction force F on the recyclable support assembly 115, satisfying the relationship: F≥P, thus obtaining the minimum total friction force of the recyclable support assembly 115. Specifically, the total friction force F of the recyclable support assembly 115 is not less than the total pressure P on the recyclable template assembly 114, so that the total friction force F of the recyclable support assembly 115 can resist the total pressure P generated by the filling slurry on the recyclable template assembly 114, thereby ensuring the overall stability and reliability of the recyclable retaining wall structure 110.

[0069] S1032: Calculate the minimum number k of recyclable support components 115 according to the formula k=F / (T*μ), where T is the rated pressure of the lifting adjuster 1152 of a single recyclable support component 115, and μ is the coefficient of friction. Specifically, when the lifting adjuster 1152 is a jack, T is the rated lifting capacity of the jack, and μ is usually 0.5.

[0070] S1033: Calculate the spacing d between the recyclable support components 115 according to the formula d=L / k.

[0071] S1034: Based on the calculated minimum number k and arrangement spacing d of the recyclable support components 115, the recyclable support components 115 are detachably installed on the bottom surface 400 and top surface 500 of the stope, and are spaced apart from the side of the surrounding rock 200 near the ore body 300.

[0072] The above embodiments of this application further include the following steps: S1035: According to the formula Calculate the maximum bending moment experienced by the recyclable template component 114. and the point of application of the maximum bending moment ; S1036: The transverse support 1154 of the recyclable support assembly 115 is set at the point of maximum bending moment Z0 to ensure the overall stability and reliability of the recyclable retaining wall structure 110.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A recyclable and fillable retaining wall, characterized in that, include: A recyclable retaining wall structure is installed on the side of the surrounding rock close to the ore body. The recyclable retaining wall structure extends along the length of the surrounding rock and forms a filling space with the surrounding rock. A filling body is disposed within the filling space; A filter element is disposed between the filling body and the recyclable retaining wall structure, and is disposed at the bottom and top of the filling body; The recyclable retaining wall structure includes a first sealing section, a second sealing section, and a third sealing section that are detachably connected. The second sealing section extends along the length direction of the surrounding rock, and the first sealing section and the third sealing section both extend along the length direction perpendicular to the surrounding rock. The filter element includes a first filter section, a second filter section, a third filter section, a fourth filter section, and a fifth filter section connected together. The first filter section is disposed on the side of the first sealing section near the filling body, the second filter section is disposed on the side of the second sealing section near the filling body, the third filter section is disposed on the side of the third sealing section near the filling body, the fourth filter section is disposed at the bottom of the filling body, and the fifth filter section is disposed at the top of the filling body.

2. The recyclable backfill retaining wall according to claim 1, characterized in that, The recyclable filling retaining wall also includes a compactor, which is disposed on the side of the fourth filter section near the filling body.

3. The recyclable backfill retaining wall according to claim 1, characterized in that, The recyclable retaining wall structure includes a recyclable template assembly and a recyclable support assembly. The recyclable template assembly is disposed on the side of the surrounding rock close to the ore body and forms the filling space with the surrounding rock. The recyclable support assembly is disposed on the side of the recyclable template assembly away from the surrounding rock and is detachably connected to the recyclable template assembly. There is a gap between the recyclable support assembly and the recyclable template assembly. The recyclable template assembly is composed of multiple recyclable retaining wall templates spliced ​​together, with any two adjacent recyclable retaining wall templates snapped together, and the recyclable retaining wall templates having multiple water filtering holes.

4. The recyclable backfill retaining wall according to claim 3, characterized in that, The recyclable support assembly includes a base, a lifting adjuster, a vertical support member, and a horizontal support member. The base is disposed on the bottom surface of the mining area, the lifting adjuster is disposed on the base, the vertical support member is movably connected to the base, the output end of the lifting adjuster is connected to the vertical support member, the end of the vertical support member away from the lifting adjuster abuts against the top surface of the mining area, and the horizontal support member is detachably connected to both the vertical support member and the recyclable template assembly. The base has multiple first friction protrusions at one end near the bottom of the mining area, and the vertical support has multiple second friction protrusions at one end near the top of the mining area.

5. The recyclable backfill retaining wall according to claim 4, characterized in that, The base is provided with a support plate at the end away from the bottom surface of the mining area, and the lifting adjuster is set on the support plate; The base is provided with a baffle at the end away from the bottom surface of the mining area, the lifting adjuster is located between the supporting base plate and the baffle, and the baffle is inclined from the top to the bottom; The fifth filter section is provided with a top fixator on the side away from the filling body, and the top fixator is used to fix it to the top surface of the mining area.

6. The recyclable backfill retaining wall according to claim 4, characterized in that, The recyclable support assembly also includes an isolation protection component, which is disposed on the bottom surface of the mining area and on the outer periphery of the base.

7. The recyclable backfill retaining wall according to claim 4, characterized in that, The recyclable support assembly also includes fasteners. The vertical support is detachably connected by multiple columns. One of two adjacent columns is provided with a slot, and the other column is provided with a protrusion that matches the slot. The slot wall is provided with multiple first through holes spaced apart vertically, and the protrusion is provided with multiple second through holes spaced apart vertically. The fastener passes through any of the first through holes and any of the second through holes.

8. A rapid construction method for a recyclable backfill retaining wall, characterized in that, Including the following steps: Clean up the broken ore on the bottom of the mine; Determine the dimensions of the filling space and the filling material; According to the size of the filling space and the filling body, the recyclable support components are detachably installed on the bottom and top surfaces of the stope, and are spaced apart from the side of the surrounding rock closest to the ore body. The recyclable template assembly is detachably mounted on the side of the recyclable support assembly near the surrounding rock, according to the size of the filling space and the filling body; The filter element is positioned on the side of the recyclable template assembly away from the recyclable support assembly, according to the filling space and the size of the filling body; The filling pipe is installed at the middle position of the top of the filling space, and the filling slurry is filled into the filling space; After the slurry solidifies to form the filling body, the recyclable support component and the recyclable template component are disassembled and recycled.

9. The rapid construction method according to claim 8, characterized in that, The steps of determining the dimensions of the filling space and the filling body, and detachably installing the recyclable support assembly on the bottom and top surfaces of the stope according to the dimensions of the filling space and the filling body, and spaced apart from the side of the surrounding rock closest to the ore body, include: Determine the length L and width W of the filling space and the filling body, the height H of the filling space, the height h of the filling body, and the bulk density γ liquid; According to the formula P=1 / 2(γ_liquid * h) 2 *W) Calculate the total pressure P on the recyclable template component and the total friction force F on the recyclable support component, satisfying the relationship: F≥P, and obtain the minimum total friction force of the recyclable support component; The minimum number of recyclable support components k is calculated using the formula k=F / (T*μ), where T is the rated pressure of the lifting regulator of a single recyclable support component, and μ is the coefficient of friction. The spacing d between recyclable support components is calculated using the formula d=L / k. Based on the calculated minimum number k of recyclable support components and the arrangement spacing d, the recyclable support components are detachably installed on the bottom and top surfaces of the stope, and spaced apart from the side of the surrounding rock closest to the ore body.

10. The rapid construction method according to claim 9, characterized in that, It also includes the following steps: According to the formula Calculate the maximum bending moment experienced by the recyclable template component. and the point of application of the maximum bending moment ; The lateral support of the recyclable support assembly is set at the point of maximum bending moment Z0.

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