Rigid-flexible collaborative gob-side entry retaining wall formwork

Abstract

This invention relates to the field of underground coal mine construction technology, and provides a rigid-flexible co-construction goaf retaining wall template, comprising: a rigid wall, which includes multiple wall panels connected in sequence to enclose a receiving groove with openings at both the upper and lower ends; and a flexible formwork bag, which is suspended from the top of the goaf and covers the opening at the upper end of the receiving groove. The rigid wall is set on the goaf floor, so that the lower opening of the receiving groove is closed by the goaf floor to form a casting cavity for pouring the supporting wall. The rigid-flexible co-construction goaf retaining wall template of this invention, by suspending the flexible formwork bag from the top of the goaf, allows the bag to deform with the filling material during pouring, resulting in a better support wall that abuts the top of the goaf, providing excellent support. After pouring, the rigid wall on the side of the casting cavity can be moved as a whole to the next pouring position for repeated use, resulting in shorter construction time and less material consumption, solving the problems of long laying time and high consumption of flexible formwork in the prior art.

Description

Technical Field

[0001] This invention relates to the field of underground coal mine construction technology, and in particular to a rigid-flexible combined formwork for roadway retaining walls. Background Technology

[0002] Currently, coal mining typically employs the technique of leaving roadways along the goaf. In this process, rigid or flexible formwork is installed in the roadway as a mold, and concrete is poured to form a wall to support the roadway.

[0003] Because the tunnel ceiling is uneven, rigid formwork cannot fit snugly against the ceiling, resulting in walls that do not connect to the ceiling and provide poor support. Flexible formwork, on the other hand, bonds to the concrete wall after pouring and cannot be removed for reuse. Therefore, after pouring one section of wall, flexible formwork needs to be re-laid at the location of the next section, which takes a long time and consumes a large amount of flexible formwork. Summary of the Invention

[0004] This invention provides a rigid-flexible co-construction formwork for roadway retaining walls, which solves the problems of long installation time and high consumption of flexible formwork in the prior art.

[0005] This invention provides a rigid-flexible combined formwork for a roadway retaining wall, comprising:

[0006] A rigid wall, comprising multiple wall panels, wherein the multiple wall panels are connected in sequence to enclose a receiving groove with openings at both the top and bottom ends;

[0007] A flexible molding bag is used to suspend the top of the tunnel. The flexible molding bag covers the opening at the upper end of the receiving groove. The rigid wall is used to be set on the bottom plate of the tunnel, so that the lower opening of the receiving groove is closed by the bottom plate of the tunnel to form a casting cavity for casting a support wall.

[0008] According to the rigid-flexible co-construction wall template of the present invention, the plurality of wall panels include two side wall panels and two end wall panels; the two ends of the two side wall panels are respectively connected by the two end wall panels to form the receiving groove.

[0009] According to the rigid-flexible co-construction wall template of the present invention, at least one end wall panel is detachably connected to the side wall panels at both ends.

[0010] According to the rigid-flexible combined goaf retaining wall template of the present invention, the side wall panel includes: a vertically arranged first wall and a second wall protruding outward from the casting cavity;

[0011] The two side wall panels are arranged opposite each other; the two end face walls are respectively arranged at both ends of the two side wall panels, adapted to the opening shape formed by the first wall and the second wall at both ends, and connected to the first wall and the second wall on both sides to form the casting cavity that at least partially protrudes outward.

[0012] According to the rigid-flexible co-working space-keeping wall template of the present invention, the wall panel includes a plurality of rigid plates, which are spliced ​​together to form the wall panel.

[0013] According to the rigid-flexible co-operated goaf retaining wall template of the present invention, the rigid wall further includes anchor bolts and at least two first support members, the first support members being disposed one-to-one on the outer side of the two side wall panels;

[0014] One end of the anchor rod is detachably connected to the first support member, and the other end passes through the side wall plate and the casting cavity and is detachably connected to the corresponding first support member on the other side.

[0015] According to the rigid-flexible co-operated goaf retaining wall template of the present invention, the rigid wall further includes a sleeve, which is sleeved on the rod segment of the anchor rod in the casting cavity.

[0016] The rigid-flexible co-construction wall template for the tunnel closure according to the present invention further includes a second support member, which is disposed on the outside of the side wall panel. One end of the second support member is fixed to the base plate, and the other end abuts against the flexible mold bag, so that the top of the flexible mold bag abuts against the top of the tunnel.

[0017] The rigid-flexible co-construction formwork for the goaf retaining wall according to the present invention further includes a rigid frame, which is disposed within the casting cavity;

[0018] The rigid frame includes multiple vertically arranged columns and multiple horizontally arranged frames. The columns are arranged in an array corresponding to the edges of the frames, and the frames are stacked at intervals in the array and are fixedly connected to the columns.

[0019] According to the rigid-flexible co-construction formwork for the tunnel wall of the present invention, a plurality of rigid frames are provided, and the plurality of rigid frames are arranged at intervals along the casting cavity.

[0020] The rigid-flexible co-construction formwork for goaf retention walls of this invention forms a casting cavity by enclosing a flexible formwork bag, a rigid wall, and the bottom plate of the goaf, thereby casting a support wall to support the goaf for mining operations. By suspending the flexible formwork bag at the top of the goaf, it deforms with the pouring of fillers such as concrete, better abutting the top of the goaf, resulting in a better support wall that better supports the top of the goaf. After one section of the support wall is poured, the rigid wall surrounding the side of the casting cavity can be moved as a whole to the casting position of the next section of the support wall for repeated use without the need for re-laying and installation, effectively shortening construction time, reducing material consumption, and solving the problems of long laying time and high consumption of flexible formwork in the prior art. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the rigid-flexible combined formwork for retaining space along the roadway provided in an embodiment of the present invention;

[0023] Figure 2 This is a top view of the rigid-flexible combined formwork for retaining space along the roadway provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the wall panel provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the first support member provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the rigid frame provided in an embodiment of the present invention;

[0027] Figure label:

[0028] 1. Rigid-flexible formwork for retaining walls along the roadway;

[0029] 11. Rigid wall; 12. Flexible molding bag; 13. Casting cavity; 14. Rigid frame;

[0030] 111. Wall panel; 112. Side wall panel; 113. End wall panel; 114. First wall; 115. Second wall; 116. Anchor bolt; 117. First support component; 118. Sleeve; 141. Column; 142. Frame;

[0031] 1111, Rigid plate. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention 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. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following is combined Figures 1 to 5 This invention describes a rigid-flexible co-construction formwork template for a roadway retaining wall.

[0036] like Figure 1 As shown, the rigid-flexible co-construction formwork 1 for the tunnel wall of the present invention includes: a rigid wall 11 and a flexible mold bag 12; the rigid wall 11 includes a plurality of wall panels 111, which are connected in sequence to enclose a receiving groove with openings at both the upper and lower ends; the flexible mold bag 12 is used to be suspended on the top of the tunnel, and the flexible mold bag 12 covers the opening at the upper end of the receiving groove; the rigid wall 11 is used to be set on the bottom plate of the tunnel, so that the lower opening of the receiving groove is closed by the bottom plate of the tunnel to form a casting cavity 13 for casting a support wall.

[0037] In this embodiment, by suspending the flexible mold bag 12 at the top of the tunnel and covering the upper opening of the receiving groove, the filling material (such as concrete) poured during the pouring of the casting cavity 13 can fill and support the flexible mold bag 12, allowing the flexible mold bag 12 to abut against the top of the tunnel. That is, the supporting wall formed by the pouring can better abut against the top of the tunnel, resulting in better support. At the same time, by setting multiple wall panels 111 to form the receiving groove, after the pouring is completed and the wall is formed, the multiple wall panels 111 can be moved as a whole to the pouring position of the next section of the wall without the need for re-laying and installation, effectively shortening the construction time. In addition, the rigid wall 11 can be reused repeatedly, only requiring the consumption of the flexible mold bag 12 covering the top of the casting cavity 13, effectively reducing the amount of material consumed and saving material costs.

[0038] The rigid-flexible co-construction formwork 1 for roadway retaining walls of the present invention forms a casting cavity 13 by enclosing a flexible formwork bag 12, a rigid wall 11, and the bottom plate of the roadway, thereby casting a support wall to support the roadway for mining operations. By suspending the flexible formwork bag 12 at the top of the roadway, it can deform with the pouring of fillers such as concrete, better abutting the top of the roadway, resulting in a better support wall that abuts the top of the roadway and provides better support. After one section of the support wall is poured, the rigid wall 11 enclosing the side of the casting cavity 13 can be moved as a whole to the casting position of the next section of the support wall for repeated use without the need for re-laying and installation, effectively shortening the construction time, reducing material consumption, and solving the problems of long laying time and high consumption of flexible formwork in the prior art.

[0039] Specifically, in some embodiments, such as Figure 1 As shown, the flexible molded bag 12 is suspended at the top of the alleyway corresponding to the upper opening of the receiving groove enclosed by the rigid wall 11. The edge of the flexible molded bag 12 hangs down and overlaps with the inner side of the wall panel 111, so that the flexible molded bag 12 can cover and block the upper opening of the receiving groove.

[0040] In some embodiments, such as Figure 2 As shown, the wall panel 111 includes two side wall panels 112 and two end wall panels 113; the two ends of the two side wall panels 112 are connected by the two end wall panels 113 respectively to form an accommodating groove.

[0041] In this embodiment, two side wall panels 112 are arranged on both sides of the support wall to be poured along the length direction of the support wall to be poured, and two end wall panels 113 are arranged at both ends of the support wall to be poured. The end wall panels 113 and the side wall panels 112 are connected to each other to close the side of the support wall to be poured so as to carry out the pouring.

[0042] Specifically, in some embodiments, at least one end wall panel 113 is detachably connected to the side wall panels 112 at both ends.

[0043] In this embodiment, by detachably connecting the end face wall plate 113 at one end to the side wall plates 112 at both ends, after the pouring of a section of the support wall is completed, only the end face wall plate 113 needs to be removed, and the remaining two side wall plates 112 and the end face wall plate 113 can be moved as a whole along the length of the support wall to the position of the next section of the support wall to be poured, so as to carry out the pouring, which is more time-saving and labor-saving.

[0044] It is easy to understand that the designed support wall is usually a continuous wall. After the outermost section of the support wall is poured, the end wall panel 113 facing away from the extension direction of the support wall can be removed. The remaining two side wall panels 112 and the end wall panel 113 are moved to the position of the next section of the support wall to be poured. The end of the already poured support wall, the two side wall panels 112 and the end wall panel 113 can be closed to form a receiving groove. It is only necessary to properly seal the gap between the side wall panel 112 and the end of the already poured support wall before continuing to pour. There is no need to reinstall the disassembled end wall panel 113.

[0045] Specifically, the two side wall panels 112 are usually connected by a traction device through a chain and connectors to drag the side wall panels 112 and the end wall panels 113 to the position of the support wall to be poured, thereby improving construction efficiency.

[0046] Specifically, such as Figure 1 and Figure 2 As shown, in some embodiments, the side wall panel 112 includes: a vertically arranged first wall 114 and a second wall 115 protruding outward from the casting cavity 13; the two side wall panels 112 are arranged opposite to each other; two end face walls 113 are respectively arranged at both ends of the two side wall panels 112, adapted to the opening shape formed at both ends by the first wall 114 and the second wall 115, and connected to both the first wall 114 and the second wall 115 on both sides to form a casting cavity 13 that protrudes outward at least partially.

[0047] In this embodiment, by providing a second wall 115 protruding outward from the casting cavity 13 below the vertical first wall 114, the rigid wall 11 forms a structure with the bottom protruding to both sides, thus forming a wall that is wider at the bottom and narrower at the top. This makes the rigid wall 11 more stable and reliable in its placement on the tunnel floor. At the same time, the shape of the end face wall plate 113 corresponds to the shape of the end face opening formed by the two side wall plates 112, which can connect and seal the two ends of the two side wall plates 112, forming a casting cavity 13 that is wider at the bottom and narrower at the top, thus forming a support wall that is wider at the bottom and narrower at the top, which is more stable and reliable.

[0048] Optionally, before pouring, a trench extending along the length of the support wall can be excavated in the base plate of the support wall to be poured. The sidewall shape of the trench corresponds to the second wall 115. The second wall 115 is set in the trench and fits against the sidewall of the trench. Only the first wall 114 protrudes from the tunnel floor plate, so that the entire rigid wall 11 is embedded in the tunnel floor plate through the protruding second wall 115, making it more stable. At the same time, the support wall poured through the pouring cavity 13 can also be embedded into the tunnel floor plate through the protruding structure at the bottom, making it more stable.

[0049] In some embodiments, such as Figure 3 As shown, the wall panel 111 includes multiple rigid plates 1111, which are spliced ​​together to form the wall panel 111.

[0050] In this embodiment, multiple rigid plates 1111 are spliced ​​together to form a wall panel 111. The rigid plates 1111 are small in size, making them easier to produce and transport, and facilitating construction.

[0051] In some embodiments, such as Figure 3 and Figure 4 As shown, the rigid wall 11 also includes anchor rods 116 and at least two first support members 117, which are respectively disposed on the outer side of the two side wall panels 112; one end of the anchor rod 116 is detachably connected to the first support member 117, and the other end passes through the side wall panel 112 and the casting cavity 13 and is detachably connected to the corresponding first support member 117 on the other side.

[0052] In this embodiment, corresponding first support members 117 are provided on the outer side of the side wall plates 112 on both sides of the casting cavity 13, and anchor rods 116 are erected through the corresponding two first support members 117 to support and fix the rigid wall 11, preventing the rigid wall 11 from deforming during the casting process. The structure is simple and highly practical. At the same time, by detachably connecting the anchor rods 116 to the two first support members 117, the anchor rods 116 can be removed from the first support members 117 after the casting is completed, so that the rigid wall 11 can be moved to the position of the next section of the support wall to be cast.

[0053] In one specific embodiment, such as Figure 3 and Figure 4As shown, the first support member 117 is a channel steel vertically installed on the outside of the side wall plate 112. A through hole is provided on the channel steel corresponding to the anchor rod 116. Correspondingly, through holes are also provided at corresponding positions on the two side wall plates 112. The anchor rod 116 is inserted into the casting cavity 13 through the through holes. A clamping plate is provided on the outside of the through holes on both sides of the channel steel. The two clamping plates are detachably connected to both ends of the anchor rod 116. The clamping plates and the anchor rod 116 form a clamping structure, holding the channel steel, side wall plate 112, and casting cavity 13 in the middle, thus providing a fixed support. Meanwhile, the clamps also fix the anchor rod 116, preventing it from sliding laterally between the channel steels, making it more secure. When installing or removing the anchor rod 116, the anchor rod 116 can be inserted into the through hole first, and then the clamps can be installed at both ends of the anchor rod 116. After the support wall is poured, the clamps at both ends of the anchor rod 116 can be removed first, and then the anchor rod 116 can be pulled out. The installation and removal process is simple and convenient.

[0054] Alternatively, in some embodiments, such as Figure 3 and Figure 4 As shown, multiple anchor rods 116 can be installed between two corresponding first support members 117 along the length of the first support member 117.

[0055] Alternatively, in some embodiments, such as Figure 3 and Figure 4 As shown, when the side wall panel 112 is long, multiple sets of corresponding first support members 117 and anchor rods 116 erected between each set of first support members 117 can be set along the length direction on the outside of the side wall panel 112.

[0056] In some embodiments, such as Figure 2 As shown, the rigid wall 11 also includes a sleeve 118, which is sleeved on the section of the anchor rod 116 inside the casting cavity 13.

[0057] In this embodiment, by sleeve 118 on the anchor rod 116, the sleeve 118 can isolate the anchor rod 116 and the filler (such as concrete) when the pouring cavity 13 is poured, so as to avoid the filler directly solidifying on the anchor rod 116, which would make the anchor rod 116 difficult to disassemble. After the pouring is completed, the anchor rod 116 can be directly pulled out from the sleeve 118. The structure is simple, convenient and practical.

[0058] In one specific embodiment, the sleeve 118 can be a flame-retardant and anti-static PVC pipe.

[0059] In some embodiments, the rigid-flexible co-constructed channel wall template 1 further includes a second support member. The second support member is disposed on the outside of the side wall panel 112. One end of the second support member is fixed to the base plate, and the other end abuts against the flexible mold bag 12, so that the top of the flexible mold bag 12 abuts against the top of the channel.

[0060] In this embodiment, by providing a second support member on the outside of the side wall panel 112, the second support member can support the portion of the flexible mold bag 12 located outside the edge of the rigid wall 11, lifting the flexible mold bag 12 so that its top can abut against the top of the tunnel, thereby enabling the top of the cast support wall to better abut against the top of the tunnel.

[0061] In some embodiments, such as Figure 1 and Figure 5 As shown, the rigid-flexible co-construction formwork 1 for the goaf retaining wall also includes a rigid frame 14, which is set inside the casting cavity 13. The rigid frame 14 includes multiple vertically arranged columns 141 and multiple horizontally arranged frames 142. The multiple columns 141 are arranged in an array corresponding to the edges of the frames 142, and the multiple frames 142 are stacked at intervals in the array and are fixedly connected to the multiple columns 141.

[0062] In this embodiment, by setting a rigid frame 14 in the casting cavity 13, the rigid frame 14 can support and fix the filling material during casting. After casting, the resulting support wall is more robust and reliable.

[0063] In some specific embodiments, the columns 141 of the rigid frame 14 are longitudinally arranged steel bars, and the frame 142 is steel bars connected end to end. The selection of steel bars needs to take into account the width, height and other dimensions of the supporting wall to be poured, and is calculated according to the corresponding design standards and specifications.

[0064] In some embodiments, multiple rigid frames 14 are provided, and the number of rigid frames 14 is adjusted according to actual needs. Multiple rigid frames 14 are arranged at intervals along the casting cavity 13.

[0065] In this embodiment, when the area of ​​the casting cavity 13 is large, multiple rigid frames 14 are spaced apart along the casting cavity 13, so as to better support and fix the support wall formed by casting, making the support wall more solid and reliable.

[0066] In one specific embodiment, during the laying process of the rigid-flexible co-constructed goaf retaining wall template 1, firstly, at the edge of the wall section of the support wall to be poured, the end wall panel 113 and the side wall panel 112 are assembled to form a receiving groove. Then, a flexible mold bag 12 is suspended at the top of the goaf at the upper opening of the receiving groove, so that the hanging edge of the flexible mold bag 12 overlaps and is fixed with the inner side of the end wall panel 113 and the side wall panel 112. At the same time, support columns can be erected at intervals on the outside of the side wall panel 112 as a second support member. The support columns can support the top edge of the flexible mold bag 12, so that the top of the flexible mold bag 12 can better abut against the top of the goaf.

[0067] Then, according to specific design requirements, a rigid frame 14 is erected inside the casting cavity 13. The rigid frame 14 is typically formed by connecting steel bars. In one specific embodiment, the supporting wall is 1500mm wide and 3500mm high. According to the relevant design standards and specifications, the columns 141 of the rigid frame 14 use steel bars with a diameter of 18mm, and the frame 142 uses steel bars with a diameter of 6mm.

[0068] After the rigid frame 14 is erected, multiple channel steels are symmetrically installed on the outside of the side wall panel 112, close to the side wall panel 112. Multiple through holes are opened on the channel steels along the vertical direction. After drilling holes at the corresponding through holes in the side wall panel 112, the anchor rod 116 is inserted from the through hole on one side of the channel steel, passes through the side wall panel 112 and the casting cavity 13, and then exits from the channel steel on the opposite side. Then, clamps are installed at both ends of the anchor rod 116 to clamp and fix the channel steel and the side wall panel 112. When the anchor rod 116 is inserted, a sleeve 118 (such as a PVC pipe) is sleeved on the rod section located in the casting cavity 13.

[0069] After the anchor bolts 116 and clamps are installed, concrete is poured into the casting cavity 13. Once the concrete is poured and the support wall is formed, the clamps and anchor bolts 116 can be removed, along with the end face wall panel 113 facing away from the extension direction of the support wall. A traction device is installed at the other end, connected to the two side wall panels 112 via a chain or similar mechanism. The two side wall panels 112 and the end face wall panel 113 are dragged along the extension direction of the support wall for a certain distance to facilitate the pouring of the next section of the support wall. The specific process is similar to the above process and will not be repeated here. It should be noted that at this time, the two sides of the casting cavity 13 are the side wall panels 112. One end of the two side wall panels 112 is connected and closed by the end face wall panel 113, and the other end is the already poured support wall. Therefore, it is not necessary to reinstall the previously removed end face wall panel 113; only the gap between the side wall panel 112 and the already poured support wall needs to be properly sealed.

[0070] It is easy to understand that during the installation of the rigid-flexible co-construction wall template 1 along the goaf in the above embodiment, the part of the rigid wall 11 formed by connecting two side wall panels 112 and one end wall panel 113 can be repeatedly dragged and reused without repeated installation, effectively shortening construction time and material costs; the anchor rods 116, clamps and other components can be repeatedly disassembled and reused, saving materials; the flexible mold bag 12 only needs to cover part of the supporting wall, which consumes less flexible mold material compared to traditional flexible mold walls, saving materials and reducing material costs.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rigid-flexible formwork for retaining walls along roadways, characterized in that, include: A rigid wall, comprising multiple wall panels, wherein the multiple wall panels are connected in sequence to enclose a receiving groove with openings at both the top and bottom ends; A flexible molding bag is used to hang on the top of the tunnel. The flexible molding bag covers the opening at the upper end of the receiving groove. The rigid wall is used to be set on the bottom plate of the tunnel so that the lower opening of the receiving groove is closed by the bottom plate of the tunnel to form a casting cavity for casting a support wall. The plurality of wall panels include two side wall panels and two end wall panels; the two ends of the two side wall panels are respectively connected by the two end wall panels to enclose and form the receiving groove; At least one of the end face wall panels is detachably connected to the side wall panels at both ends; The side wall panel includes: a vertically arranged first wall and a second wall protruding outward from the casting cavity; The two side wall panels are arranged opposite each other; the two end wall panels are respectively arranged at both ends of the two side wall panels, adapted to the opening shape formed at both ends of the first wall and the second wall, and connected to both sides of the first wall and the second wall to form the casting cavity that protrudes outward at least partially; the edge of the flexible mold bag hangs down and overlaps with the inner side of the first wall; The second wall is used to be set in the groove of the tunnel floor and fits against the side wall of the groove, so that the entire rigid wall is embedded in the tunnel floor through the protruding second wall, and only the first wall protrudes from the tunnel floor; after the pouring of a section of the support wall is completed and the end face wall plate away from the extension direction of the support wall is removed, the remaining two side wall plates and the end face wall plate that has not been removed can be moved as a whole along the extension direction of the support wall to the next pouring position, and together with one end of the already poured support wall, form the receiving groove of the next section; The second support member is disposed on the outside of the side wall panel. One end of the second support member is fixed to the bottom plate, and the other end abuts against the flexible mold bag, so that the top of the flexible mold bag abuts against the top of the tunnel.

2. The rigid-flexible combined formwork for retaining space along the goaf as described in claim 1, characterized in that, The wall panel comprises multiple rigid plates, which are spliced ​​together to form the wall panel.

3. The rigid-flexible combined formwork for retaining walls along the goaf according to claim 1, characterized in that, The rigid wall also includes anchor rods and at least two first support members, which are respectively disposed on the outer side of the two side wall panels; One end of the anchor rod is detachably connected to the first support member, and the other end passes through the side wall plate and the casting cavity and is detachably connected to the corresponding first support member on the other side.

4. The rigid-flexible combined formwork for retaining walls along the goaf according to claim 3, characterized in that, The rigid wall also includes a sleeve, which is fitted onto the section of the anchor rod inside the casting cavity.

5. The rigid-flexible combined formwork for retaining walls along the goaf according to any one of claims 1-4, characterized in that, It also includes a rigid frame, which is disposed within the casting cavity; The rigid frame includes multiple vertically arranged columns and multiple horizontally arranged frames. The columns are arranged in an array corresponding to the edges of the frames, and the frames are stacked at intervals in the array and are fixedly connected to the columns.

6. The rigid-flexible combined formwork for retaining walls along the goaf according to claim 5, characterized in that, The rigid frame is provided in multiple ways, and the multiple rigid frames are arranged at intervals along the casting cavity.

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