Flexible filling bag for temporary support of mine and construction method thereof

Abstract

The present application discloses a flexible filling bag for temporary support in a mine and its construction method, which relates to the technical field of underground support devices. The flexible filling bag for temporary support in a mine includes a plurality of filling bag bodies that can be stacked on each other and are in the shape of a prism with multiple sides; a spacer layer is annularly arranged on the circumferential wall surface inside the filling bag body; the longitudinal section of the spacer layer is in a U shape, separating the space inside the filling bag body into an I-shaped filling cavity and an annular cavity; a one-way pressure relief valve is installed on the filling bag body for relieving pressure in the I-shaped filling cavity when the pressure in the I-shaped filling cavity reaches a preset pressure relief value; at least one first connecting member and at least one second connecting member that is detachably connected and matched with the first connecting member are provided on the filling bag body; a grouting hole communicating with the I-shaped filling cavity is provided on the filling bag body. It solves the technical problems of poor flexibility in use, low filling efficiency and high filling cost existing in the existing flexible filling bags.

Description

Technical Field

[0001] This application relates to the technical field of underground support devices, and particularly to a flexible filling bag for temporary support in a mine and its construction method. Background Art

[0002] The flexible filling bag is an important device that plays a supporting role in a mine. It is usually made of high-strength, wear-resistant, and corrosion-resistant flexible materials and can play an effective supporting role in the mine.

[0003] The existing construction methods of flexible filling bags are mainly as follows:

[0004] 1. Prepare the flexible filling bag, filling materials, and equipment and tools required for construction; 2. Lay the filling bag in the area that needs to be supported to ensure that the filling bag fits tightly with the surrounding rock walls; 3. Transport the mixed filling materials into the flexible filling bag through a conveying device.

[0005] Most of the existing flexible filling bags are of integral design. For example, the Chinese patent with the patent publication number CN219344761U discloses a flexible filling bag for making a sealed wall. Therefore, it is necessary to first measure the size and shape of the mine area that needs to be supported, and then design the required flexible filling bag according to the measured size and shape. This method still has deficiencies in terms of flexibility in use; moreover, from the filling bag design disclosed in the above patent, it can be known that the existing filling bags are usually filled completely. Although this method improves the strength of the support structure, it also affects the filling efficiency and increases the filling cost. Summary of the Invention

[0006] In view of this, the purpose of this application is to provide a flexible filling bag for temporary support in a mine and its construction method, which solves the technical problems of poor flexibility in use, low filling efficiency, and high filling cost existing in the existing flexible filling bags.

[0007] To achieve the above technical purpose, this application provides a flexible filling bag for temporary support in a mine, including a plurality of filling bag bodies that can be stacked on each other and are in the shape of a prism;

[0008] An interval layer is annularly provided on the circumferential wall surface inside the filling bag body;

[0009] The longitudinal section of the interval layer is in a C shape, so that an annular cavity is formed between the outer side surface of the interval layer and the circumferential wall surface inside the filling bag body, and an I-shaped filling cavity is formed between the inner side surface of the interval layer and the circumferential wall surface, the top wall surface, and the bottom wall surface inside the filling bag body;

[0010] A one-way pressure relief valve is installed on the filling bag body, which is used to relieve the pressure in the I-shaped filling cavity when the pressure in the I-shaped filling cavity reaches a preset pressure relief value;

[0011] The filling bag body is provided with at least one first connecting piece and at least one second connecting piece detachably connected to and cooperating with the first connecting piece;

[0012] The filling bag body is provided with a grouting hole communicating with the I-shaped filling cavity.

[0013] Furthermore, a supporting elastic member is installed on the filling bag body;

[0014] One end of the supporting elastic member contacts and abuts against the top of the outer side surface of the spacing layer, and the other end contacts and abuts against the bottom of the outer side surface of the spacing layer.

[0015] Furthermore, the supporting elastic member is a compression spring, which is sleeved outside the spacing layer.

[0016] Furthermore, the one-way pressure relief valve is arranged on the spacer layer.

[0017] Furthermore, at least one through-tube structure is provided on the filling bag body;

[0018] Each of the through-tube structures is composed of two through-ports which are arranged opposite to each other and are respectively connected to the annular cavity.

[0019] Furthermore, each of the conducting ports is provided with a detachable sealing cover.

[0020] Furthermore, the filling bag body is provided with a filling hole communicating with the annular cavity.

[0021] Furthermore, the number of the first connecting members is at least two, and they are symmetrically arranged on both sides of the top of the filling bag body;

[0022] There are at least two second connecting members, which are symmetrically arranged on both sides of the bottom of the filling bag body;

[0023] The first connecting member is provided with a male buckle portion;

[0024] The second connecting member is provided with a female buckle portion which is detachably connected with the male buckle portion.

[0025] Furthermore, the first connecting member and / or the second connecting member is provided with a lifting ring.

[0026] The present application also discloses a flexible filling bag construction method, which is applied to the flexible filling bag for temporary mine support, and comprises the steps of:

[0027] Prepare a preset number of filling bag bodies according to the size and shape of the mine area to be supported that requires support.

[0028] Transport the filling bag body to the mine area to be supported and carry out unfolding treatment.

[0029] Stack the unfolded filling bag bodies according to the size and shape of the supported mine area. Among them, after stacking, adjacent filling bag bodies are connected and fixed through the self - carried first connecting piece and second connecting piece.

[0030] Use a fixing device to fix the filling bag body close to the rock wall to the rock wall together.

[0031] Transport the well - stirred filling material to the I - shaped filling cavity of the filling bag body through filling equipment.

[0032] Fill the annular cavity of the filling bag body with inert gas or heat - insulating foaming material.

[0033] It can be seen from the above technical solutions that the flexible filling bag for temporary support of mines and its construction method designed in this application design a filling bag body in the shape of a multi - prism and realize mutual stackability. After stacking, the filling bag bodies can be connected and fixed through the first connecting piece and the second connecting piece. This design method modularizes the filling bag body, and can flexibly stack into the required shape to flexibly meet the support requirements of mines with different sizes and shapes. For example, it can conveniently stack out the required hollow area as an observation window, greatly improving the flexibility of use. Moreover, a spacer layer with a U - shaped cross - section is arranged around the circumferential wall surface in the filling bag body to divide the internal space into an I - shaped filling cavity and an annular cavity. The I - shaped filling cavity can be used to fill the required slurry to form an I - shaped support structure, and use the stable characteristics of the I - shaped structure to ensure the support stability. At the same time, compared with the traditional full filling, it effectively saves the filling cost and improves the filling efficiency. At the same time, the formed annular cavity can be used to lay pipes for drainage, ventilation, etc., providing convenience for pipe laying. Moreover, this annular cavity can be filled with inert gas or heat - insulating foam material to improve the overall heat - insulating effect and meet the use scenarios with high heat - insulating requirements, and has better applicability. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0035] Figure 1This is a schematic diagram of the structure of a flexible filling bag for temporary support of a mine provided in this application;

[0036] Figure 2 This is a schematic diagram of the first application structure of the flexible filling bag for temporary support of mines provided in this application;

[0037] Figure 3 This is a schematic diagram of a second application structure of the flexible filling bag for temporary support of a mine provided in this application;

[0038] Figure 4 A schematic diagram of the process of the flexible filling bag construction method provided in this application;

[0039] In the figure: 100, filling bag body; 101, one-way pressure relief valve; 102, grouting hole; 103, filling hole; 104, conduction port; 1, spacing layer; 21, I-shaped filling cavity; 22, annular cavity; 31, first connecting piece; 311, male buckle part; 32, second connecting piece; 321, female buckle part; 4, supporting elastic member; 5, lifting ring. DETAILED DESCRIPTION

[0040] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0041] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0043] The embodiments of the present application disclose a flexible filling bag for temporary support of a mine and a construction method thereof.

[0044] See also Figures 1 to 3 An embodiment of a flexible filling bag for temporary mine support and a construction method thereof provided in the embodiments of the present application includes:

[0045] It includes a plurality of filling bag bodies 100 which can be stacked on each other and are in the shape of polygonal prisms; the filling bag bodies 100 are provided with at least one first connecting member 31 and at least one second connecting member 32 which is detachably connected to the first connecting member 31. The filling bag bodies 100 are cleverly designed to be in the shape of polygonal prisms. This unique shape enables them to be stacked on each other, just like building blocks. After stacking, the filling bag bodies 100 can be firmly connected and fixed by the first connecting member 31 and the second connecting member 32. This design method modularizes the filling bag bodies 100, making them like flexible modules, which can be stacked into various shapes according to actual needs, whether it is a complex geometric shape or a specific functional area, it can be easily realized. For example, the required hollow area can be stacked very conveniently and used as an observation window, which greatly improves the flexibility of use (specifically, such as Figure 2 The arch-shaped stacking and Figure 3 In actual mine support applications, different mines may have different size and shape requirements, and this modular design can perfectly adapt to various situations, providing a highly customized solution for mine support.

[0046] A spacer layer 1 is annularly arranged on the circumferential wall surface inside the filling bag body 100; the longitudinal section of the spacer layer 1 is in a U shape (the unilateral shape of the longitudinal section of the spacer layer 1), so that an annular cavity 22 is formed between the outer side surface of the spacer layer 1 and the circumferential wall surface inside the filling bag body 100, and an I-shaped filling cavity 21 is formed between the inner side surface of the spacer layer 1 and the circumferential wall surface, the top wall surface and the bottom wall surface inside the filling bag body 100; a one-way pressure relief valve 101 is installed on the filling bag body 100 for relieving the pressure in the I-shaped filling cavity 21 when the pressure in the I-shaped filling cavity 21 reaches a preset pressure relief value; a grouting hole 102 communicating with the I-shaped filling cavity 21 is provided on the filling bag body 100. The annular arrangement of the spacer layer 1 with a U-shaped cross section on the circumferential wall surface inside the filling bag body 100 has multiple important significances. The spacer layer 1 cleverly divides the internal space into an I-shaped filling cavity and an annular cavity 22, realizing the efficient utilization of space and functional division. The I-shaped filling cavity can be used to fill the required slurry, and when the slurry solidifies, an I-shaped support structure will be formed. The I-shaped structure is famous for its stability and can provide reliable support for the mine. Compared with the traditional full filling method, this design not only effectively saves the filling cost but also greatly improves the filling efficiency. In today's increasingly resource-constrained situation, saving costs and improving efficiency are crucial considerations. At the same time, the formed annular cavity 22 has multiple practical functions. On the one hand, it can be used to lay pipes for drainage, ventilation, etc., providing great convenience for the layout of pipes. In the mine environment, the drainage and ventilation systems are indispensable, and the existence of the annular cavity 22 makes the layout of pipes more orderly and efficient, reducing the difficulty and cost of pipe laying. On the other hand, the annular cavity 22 can also be filled with inert gas or heat-insulating foam materials. In some usage scenarios with high heat-insulating requirements, this function is particularly important. Filling inert gas or heat-insulating foam materials can significantly improve the overall heat-insulating effect and provide better protection for the working environment in the mine. Whether in the hot summer or the cold winter, a good heat-insulating effect can create a relatively comfortable working environment for miners, improving work efficiency and safety. At the same time, this design of the annular cavity 22 that can be filled according to different needs also makes the flexible filling bag have better applicability and can meet various different usage scenarios and special requirements.

[0047] Generally speaking, the flexible filling bag for temporary support of mines in this application provides an efficient, flexible, economical and highly applicable solution for mine support through innovative design and multifunctional structure.

[0048] The above is the first embodiment of the flexible filling bag for temporary support of mines and its construction method provided by this application. The following is the second embodiment of the flexible filling bag for temporary support of mines and its construction method provided by this application. For details, please refer to Figure 1 。

[0049] Based on the solution of the above embodiment 1:

[0050] Furthermore, a supporting elastic member 4 is installed on the filling bag body 100 ; one end of the supporting elastic member 4 contacts and abuts against the top of the outer side surface of the spacer layer 1 , and the other end contacts and abuts against the bottom of the outer side surface of the spacer layer 1 .

[0051] When the filling bag body 100 is needed, the provision of such a supporting elastic member 4 enables the filling bag body 100 to be rapidly deployed at an astonishing speed. The principle is that the elastic force possessed by the supporting elastic member 4 can be released in an instant, like a spring ready to go. Once untied, it pushes the filling bag body 100 to be rapidly deployed with a powerful force. This rapid deployment feature greatly improves the efficiency of the preparation work and saves precious time for mine support work. In emergency situations, or when a support structure needs to be quickly built, this efficient deployment method undoubtedly has huge advantages.

[0052] Furthermore, due to the compressible characteristics of the supporting elastic member 4 itself, the filling bag body 100 can be packaged and transported in a smaller volume. During the transportation process, the supporting elastic member 4 is compressed, the filling bag body 100 becomes more compact, and the space occupied is greatly reduced. This not only improves the handling efficiency, but also reduces the transportation cost. Whether it is transported by vehicle or manually, the filling bag body 100 of a smaller volume is more convenient and efficient. Moreover, the compressed and packaged filling bag body 100 can be locked by the first connecting member 31 and the second connecting member 32 it carries. During the transportation and storage process, this locking method can ensure that the filling bag body 100 remains compact and will not be accidentally unfolded due to shaking or squeezing. When the filling bag body 100 needs to be used, it only needs to unlock the connection lock between the first connecting member 31 and the second connecting member 32, and the supporting elastic member 4 will quickly play a role under the elastic recovery effect, so that the filling bag body 100 can be quickly unfolded. This design is convenient for transportation and storage, and ensures that it can be quickly put into work when used, providing reliable protection for mine support.

[0053] In general, the supporting elastic member 4 installed on the filling bag body 100 can not only enable the filling bag body 100 to be quickly unfolded, thereby improving the efficiency of preparation work, but also utilize its compressible characteristics to realize the small-volume packaging and transportation of the filling bag body 100, thereby improving the transportation efficiency. At the same time, the design of locking and unlocking through the first connecting member 31 and the second connecting member 32 makes the filling bag body 100 more convenient and efficient during transportation and use, which brings great convenience to the mine support work.

[0054] Furthermore, the supporting elastic member 4 is preferably a compression spring, which is sleeved outside the spacing layer 1. The compression spring is an ideal choice for the supporting elastic member 4 due to its excellent elastic performance and reliable stability. When the compression spring is sleeved outside the spacing layer 1, it can perfectly fit the structure of the filling bag body 100. As an important component of the filling bag body 100, the spacing layer 1 provides a stable support point for the compression spring on its outer side. The compression spring tightly surrounds the spacing layer 1 to form a powerful elastic support system. The compression spring has a strong elastic restoring force. When the filling bag body 100 is in a compressed state, the compression spring is compressed to store energy. Once the filling bag body 100 needs to be unfolded, the compression spring quickly releases energy and pushes the filling bag body 100 to unfold quickly with a strong elastic force. This instantaneous explosive force can ensure that the filling bag body 100 returns to a normal working state in the shortest time, greatly improving the efficiency of the preparation work.

[0055] The elastic coefficient of the compression spring of the present application can be selected and adjusted according to actual needs. Compression springs of different specifications can provide different degrees of elastic support force to adapt to filling bag bodies 100 of different sizes and weights. Such flexibility makes the design of the filling bag body 100 more diversified and can meet various complex mine support requirements.

[0056] Furthermore, the one-way pressure relief valve 101 can be arranged on the spacer layer 1 to release the excess pressure into the annular cavity 22. If the one-way pressure relief valve 101 is arranged on the outer wall of the filling bag body 100, in the actual mine environment, it is very likely to face the rock wall. Once this happens, the rock wall will block the one-way pressure relief valve 101, which will seriously affect the pressure relief effect. This is extremely dangerous in the process of mine support, because the excessive pressure cannot be released in time, which may cause the filling bag body 100 to rupture, or even cause more serious safety accidents. The one-way pressure relief valve 101 is arranged on the spacer layer 1, which cleverly avoids this problem. The spacer layer 1 is located inside the filling bag body 100, and no matter how the position of the filling bag body 100 in the mine changes, it will not be directly blocked by the rock wall. When the internal pressure exceeds the safety range, the one-way pressure relief valve 101 can quickly release the excess pressure into the annular cavity 22. As a relatively independent space, the annular cavity 22 can effectively accommodate and buffer these excess pressures. In this way, not only the smooth progress of the pressure relief process is ensured, the safety and stability of the filling bag body 100 is guaranteed, but also a reliable guarantee is provided for the mine support. In addition, arranging the one-way pressure relief valve 101 on the spacing layer 1 is also conducive to improving the stability and reliability of the entire system. Since the position of the spacing layer 1 is relatively fixed, the working state of the one-way pressure relief valve 101 is also more stable. It will not be excessively affected by the shaking of the filling bag body 100 or changes in the external environment. At the same time, this design also makes maintenance and overhaul more convenient. The staff can more easily inspect and repair the one-way pressure relief valve 101 to ensure that it can work normally when needed.

[0057] Furthermore, at least one through-tube structure is provided on the filling bag body 100; each through-tube structure is composed of two conducting ports 104 which are arranged opposite to each other and respectively connected to the annular cavity 22. In a mine environment, the importance of drainage and ventilation systems is self-evident. When there is a need to set up drainage and ventilation pipes, the drainage and ventilation pipes can be easily passed through the corresponding two conducting ports 104 to realize the setting of the pipes through the annular cavity 22. In this way, the layout of the pipeline becomes more convenient and efficient. There is no need to perform complicated construction operations, nor to worry about the fixing and protection of the pipelines.

[0058] Furthermore, a detachable sealing cover is provided on each conducting port 104. In actual application scenarios, not every filling bag body 100 has the need for pipe threading. For those conducting ports 104 of the filling bag body 100 that do not require pipe threading, the sealing cover plays a key role. The sealing cover can tightly seal the conducting port 104 to ensure the sealing of the annular cavity 22. This can effectively prevent external impurities, dust, moisture, etc. from entering the annular cavity 22, thereby maintaining the environmental stability of the annular cavity 22. When the conducting port 104 needs to be used for pipe threading in some cases, the sealing cover can be easily removed without causing any hindrance to the construction. When pipe threading is not required, the sealing cover can be quickly installed to ensure the sealing state of the conducting port 104. This detachable feature enables the filling bag body 100 to be flexibly adjusted according to actual needs and adapted to different usage scenarios. The sealing cover can be detachably fixed in a threaded connection manner without restriction.

[0059] Furthermore, a filling hole 103 connected to the annular cavity 22 is also provided on the filling bag body 100. The existence of the filling hole 103 provides a convenient channel for filling the annular cavity 22 with materials. When there is a need to enhance the thermal insulation effect, the corresponding required materials, such as inert gas or thermal insulation foam material, can be filled into the annular cavity 22 through this filling hole 103. Inert gas has good thermal insulation properties, and filling it into the annular cavity 22 can effectively prevent the transfer of heat. In some mine environments with high thermal insulation requirements, inert gas can play an important role in creating a relatively stable temperature environment for miners and improving the comfort and safety of work. Thermal insulation foam material also has excellent thermal insulation effect, and its light weight and high efficiency make it an ideal thermal insulation filling material. Filling the thermal insulation foam material into the annular cavity 22 through the filling hole 103 can form an effective thermal insulation layer to reduce the impact of the external temperature on the inside of the mine.

[0060] Furthermore, there are at least two first connectors 31, symmetrically arranged on both sides of the top of the filling bag body 100; there are at least two second connectors 32, symmetrically arranged on both sides of the bottom of the filling bag body 100; from the perspective of self-compression and packaging, the symmetrical arrangement of the first connector 31 and the second connector 32 greatly facilitates the installation and fixing operation. When the filling bag body 100 needs to be compressed and packaged for transportation and storage, multiple symmetrically distributed connectors can provide a more stable and uniform fixing force. They can ensure that the filling bag body 100 remains tightly wrapped in a compressed state and will not easily fall apart due to external forces. Whether by rope binding or other fixing methods, these symmetrically arranged connectors can provide reliable connection points for the packaging process, making the operation more efficient and convenient.

[0061] In the scenario of stacking, the connection and fixation between adjacent filling bag bodies 100 also becomes easier because of this arrangement. When two adjacent filling bag bodies 100 are stacked together, the second connecting pieces 32 on both sides of the bottom of the upper filling bag body 100 can be connected to the first connecting pieces 31 on both sides of the top of the lower filling bag body 100. This symmetrical design makes the connection points evenly distributed, can withstand pressure and external forces from all directions, and ensure the stability and safety of the stacking structure.

[0062] The first connecting member 31 is provided with a male buckle portion 311, and the second connecting member 32 is provided with a female buckle portion 321 detachably connected with the male buckle portion 311. Of course, in addition to the above buckle connection design, other easily detachable matching designs can be used, and there is no specific limitation.

[0063] Furthermore, the first connecting member 31 and / or the second connecting member 32 are provided with a lifting ring 5. The additional lifting ring 5 has important practical significance. In a mine environment, in order to ensure the installation reliability of the filling bag body 100, it is often necessary to fix it to the rock wall. The existence of the lifting ring 5 provides a perfect solution to this requirement. By passing a rope through the lifting ring 5, the filling bag body 100 can be easily connected to the rock wall. This fixing method is not only simple and easy, but also can effectively improve the reliability of installation.

[0064] like Figure 4 As shown, the present application also discloses a flexible filling bag construction method, which is applied to a flexible filling bag for temporary support of a mine, comprising the steps of:

[0065] S1. Prepare a preset number of filling bag bodies 100 according to the size and shape of the mine area to be supported; before carrying out the mine support operation, it is necessary to first conduct detailed measurement and analysis of the mine area to be supported. Use professional measurement tools and techniques to accurately determine the size and shape characteristics of the area. Based on these specific parameters, carefully calculate the number of filling bag bodies 100 required. Taking into account the complex terrain of the mine and the differences in support requirements in different parts, it is necessary to ensure that the number of prepared filling bag bodies 100 can meet the strength requirements of the support without causing waste of resources. At the same time, the prepared filling bag bodies 100 are subject to strict quality inspection to ensure the integrity and strength of their materials and the reliability of each connector.

[0066] S2, transport the filling bag body 100 to the mine area to be supported and carry out the unfolding process; use appropriate transportation tools to safely and efficiently transport the prepared filling bag body 100 to the mine area to be supported. During transportation, care should be taken to protect the filling bag body 100 to prevent it from being damaged or contaminated. The unfolding process is specifically that the filling bag body 100 is filled with gas to achieve unfolding, or when the filling bag body 100 is automatically unfolded under the action of the supporting elastic member 4, a certain amount of gas is filled to unfold it, without restriction.

[0067] S3, stack the unfolded filling bag bodies 100 according to the size and shape of the supported mine area, wherein adjacent filling bag bodies 100 after stacking are connected and fixed by the first connecting piece 31 and the second connecting piece 32 provided therewith. According to the actual size and shape of the mine area to be supported, the stacking method of the filling bag bodies 100 is reasonably planned. The construction personnel carefully measure and calculate to ensure that the height, angle and position of the stacking meet the design requirements. During the stacking process, care should be taken to maintain the stability of the filling bag bodies 100 to avoid tilting or collapse. When adjacent filling bag bodies 100 are stacked together, they are connected and fixed by using their own first connecting piece 31 and second connecting piece 32.

[0068] S4, using a fixing device to fix the filling bag body 100 close to the rock wall to the rock wall; in order to further improve the stability and support effect of the filling bag body 100, it is necessary to use a fixing device to fix the filling bag body 100 close to the rock wall to the rock wall. The fixing device can be selected according to the actual situation. Appropriate type, such as anchor rods, anchor cables, expansion bolts, etc.

[0069] S5, the stirred filling material is conveyed to the I-shaped filling cavity 21 of the filling bag body 100 through the filling equipment; before the filling operation, the filling material must be fully stirred to ensure that its composition is uniform and the quality is stable. The stirred filling material is conveyed to the I-shaped filling cavity 21 of the filling bag body 100 through a special filling equipment. The selection of filling equipment should be comprehensively considered based on the properties of the filling material, the size of the filling bag body 100 and the conditions of the construction site. During the filling process, attention should be paid to controlling the filling speed and pressure to prevent the filling bag body 100 from bursting due to excessive pressure. At the same time, it is necessary to ensure that the filling material fully fills all parts of the I-shaped filling cavity 21 without leaving any gaps to ensure the stability and strength of the supporting structure. After the filling is completed, the surface of the filling bag body 100 should be inspected to ensure that it is not damaged or leaking.

[0070] S6, filling the annular cavity 22 of the filling bag body 100 with inert gas or thermal insulation foam material. According to actual needs, if the thermal insulation effect of the filling bag body 100 needs to be improved, the annular cavity 22 thereof can be filled with inert gas or thermal insulation foam material.

[0071] The above is a detailed introduction to the flexible filling bags for temporary support of mines and their construction methods provided by the present application. For general technicians in this field, according to the ideas of the embodiments of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A flexible filling bag for temporary support of a mine, characterized in that: It includes a number of filling bag bodies (100) that can be stacked on each other and are in the shape of a multi-prismatic column; An interval layer (1) is annularly arranged on the circumferential wall surface inside the filling bag body (100); The longitudinal section of the interval layer (1) is in a U shape, so that an annular cavity (22) is formed between the outer side surface of the interval layer (1) and the circumferential wall surface inside the filling bag body (100), and an I-shaped filling cavity (21) is formed between the inner side surface of the interval layer (1) and the circumferential wall surface, the top wall surface and the bottom wall surface inside the filling bag body (100); A one-way pressure relief valve (101) is installed on the filling bag body (100) for relieving pressure in the I-shaped filling cavity (21) when the pressure in the I-shaped filling cavity (21) reaches a preset pressure relief value; At least one first connecting member (31) and at least one second connecting member (32) detachably connected and matched with the first connecting member (31) are provided on the filling bag body (100); A grouting hole (102) communicating with the I-shaped filling cavity (21) is provided on the filling bag body (100); A supporting elastic member (4) is installed on the filling bag body (100); One end of the supporting elastic member (4) is in contact and abuts against the top of the outer side surface of the interval layer (1), and the other end is in contact and abuts against the bottom of the outer side surface of the interval layer (1); The supporting elastic member (4) is a compression spring and is sleeved outside the interval layer (1).

2. The flexible filling bag for temporary support of a mine according to claim 1, characterized in that: The one-way pressure relief valve (101) is arranged on the interval layer (1).

3. The flexible filling bag for temporary support of a mine according to claim 1, characterized in that: At least one through-tube structure is provided on the filling bag body (100); Each through-tube structure is composed of two oppositely arranged conduction ports (104) respectively communicating with the annular cavity (22).

4. The flexible filling bag for temporary support of a mine according to claim 3, characterized in that: A detachably sealed cover is arranged on each conduction port (104).

5. The flexible filling bag for temporary support of mines according to claim 1, characterized in that: A filler hole (103) communicating with the annular cavity (22) is further provided on the filling bag body (100).

6. The flexible filling bag for temporary support of a mine according to claim 1, characterized in that: There are at least two first connecting members (31), which are symmetrically arranged on both sides of the top of the filling bag body (100); There are at least two second connecting members (32), which are symmetrically arranged on both sides of the bottom of the filling bag body (100); A male snap portion (311) is provided on the first connecting member (31); A female snap portion (321) detachably connected and matched with the male snap portion (311) is provided on the second connecting member (32).

7. The flexible filling bag for temporary support of a mine according to claim 1, characterized in that: A hanging ring (5) is provided on the first connecting member (31) and / or the second connecting member (32).

8. A flexible filling bag construction method, characterized in that: Applied to the flexible filling bag for temporary support in a mine as described in any one of claims 1 to 7, it includes the steps of: Preparing a preset number of filling bag bodies (100) according to the size and shape of the mine area to be supported that needs to be supported; Transporting the filling bag body (100) to the mine area to be supported and carrying out unfolding treatment; The unfolded filling bag bodies (100) are stacked according to the size and shape of the supporting mine area, wherein adjacent stacked filling bag bodies (100) are connected and fixed via a first connecting piece (31) and a second connecting piece (32) provided therewith; Using a fixing device to fix the filling bag body (100) close to the rock wall to the rock wall; The stirred filling material is conveyed into the I-shaped filling cavity (21) of the filling bag body (100) through a filling device; Inert gas or heat-insulating foam material is filled into the annular cavity (22) of the filling bag body (100).

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