Gob-side entry retaining roadside supporting device

Abstract

The utility model relates to the technical field of coal mining, in particular to a gob-side entry retaining roadside supporting device which comprises a roadside waste rock blocking supporting assembly and a roadside bearing supporting assembly, and the roadside waste rock blocking supporting assembly is arranged on a step, close to a roadway, of a gob. The roadside waste rock blocking supporting assembly comprises a supporting body and a top plate supporting body arranged on the supporting body, the supporting body is used for protecting waste rock falling off from the goaf, and the top plate supporting body is used for supporting a top plate above the goaf; the roadside supporting and supporting assembly is arranged on the step and located between the roadside waste rock blocking and supporting assembly and the roadway, the roadside supporting and supporting assembly comprises a forming component and a filling material arranged in the forming component, and the filling material enables the forming component to form a stable structure and is used for forming the side wall, close to a goaf, of the roadway together with the step; according to the gob-side entry retaining roadside supporting device, material consumption can be reduced, and construction efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to open -pit coal mining technical field especially relates to a kind of along empty roadway retaining roadway side supporting device. BACKGROUND

[0002] Current along empty roadway retaining technology has been widely applied in each big coal enterprise in China, by keeping the working face recovery roadway along goaf in the recovery process, for the next working face recovery roadway use, directly cancel the section protection coal pillar between working face, improve resource recovery rate, ease the mining succession tense situation.

[0003] Then, due to the small thickness of thin coal seam mining seam occurrence thickness, coal resources total amount and economic value are relatively low, and the present situation that roadway height (usually 2.8m~3m) cannot be further reduced, roadway retaining mode and roadway retaining cost are basically consistent with general medium-thick coal seam along empty roadway retaining, leading to the material cost of thin coal seam along empty roadway retaining support is higher, and construction efficiency is lower. UTILITARY MODEL

[0004] The utility model provides a kind of along empty roadway retaining roadway side supporting device, which can reduce material consumption and improve construction efficiency.

[0005] The utility model embodiment provides a kind of along empty roadway retaining roadway side supporting device, which includes: roadway side gangue blocking support component, which is arranged on the step adjacent to the roadway in the goaf, the roadway side gangue blocking support component includes support body and roof support body arranged on the support body, the support body is used to prevent the gangue falling in the goaf, and the roof support body is used to support the roof above the goaf;Roadway side supporting support component is arranged on the step and located between the roadway side gangue blocking support component and the roadway, and the roadway side supporting support component includes forming member and filling material arranged in the forming member, the filling material makes the forming member form stable structure, which is used to form the sidewall of the goaf adjacent to the roadway with the step.

[0006] In a possible implementation, the roadway side supporting support component further includes a plastic fixing assembly arranged in the forming member, which internally supports the forming member to maintain the shape of the forming member before the filling material is injected into the forming member.

[0007] In a possible implementation, the plastic fixing assembly includes at least one of a mesh, a tension anchor rod and a ceiling anchor rod.

[0008] In a possible implementation, the roadway side gangue blocking support component further includes a roof mesh arranged on the top of the support body, which is fixed to the bottom of the roof by the roof support body.

[0009] In a possible implementation, the roof mesh includes at least one of a flexible mesh, a diamond mesh, a steel mesh, and a warp and weft mesh.

[0010] In a possible implementation, the forming member includes at least one of a flexible mold bag and an iron sleeve; and / or, the support body includes at least one of a gangue blocking support, a single hydraulic prop, and a wooden point column; and / or, the roof support body includes at least one of an anchor rod and an anchor cable.

[0011] In a possible implementation, the height of the roadside support and support assembly is consistent with the working face mining height of the goaf; and / or, the thickness of the roadside support and support assembly is 0.6m-1.5m.

[0012] The utility model embodiment provides a kind of support method of above-mentioned along empty roadway retaining roadway roadside support device, comprising the following steps: roadside gangue blocking support assembly construction: roadside gangue blocking support assembly is arranged on the step of goaf adjacent roadway;Roadside support and support assembly construction: after roadside gangue blocking support assembly construction is completed, roadside support and support assembly are arranged on the step of goaf.

[0013] In a possible implementation, the roadside gangue blocking support assembly includes a roof mesh arranged on the top of the support body, and the roadside gangue blocking support assembly construction includes: laying the roof mesh under the roof, and fixing the roof mesh by the roof support body; arranging the support body on the step to support the roof and the roof support body.

[0014] In a possible implementation, the roadside support and support assembly includes a shaping and fixing assembly arranged in the forming member, and the roadside support and support assembly construction includes: fixing the forming member between the roadside gangue blocking support assembly and the roadway; loading the shaping and fixing assembly into the forming member to support the forming member from inside; and injecting the filling material into the forming member.

[0015] The along empty roadway retaining roadway roadside support device provided by the utility model protects the gangue rolled down from the goaf by the support body in the along empty roadway retaining roadway construction, and the roof support body is used to support the roof above the goaf, the roadside support and support assembly is arranged on the step of the goaf, and forms the sidewall of the roadway together with the step, which can save more than half of the materials, thereby reducing the consumption of materials and improving the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1 is a structural schematic view of a roadway-side support device of a gob-side entry retaining, provided by the utility model.

[0018] Figure 2 is a flow chart of a roadway-side support method of a gob-side entry retaining, provided by the utility model.

[0019] Reference signs:

[0020] 1, roadway-side gangue blocking support assembly; 11, support body; 12, roof support body; 13, roof mesh;

[0021] 2, roadway-side support support assembly; 21, shaped member; 22, filling material; 23, shaping and fixing assembly;

[0022] 3, gob area; 4, roadway; 5, step. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] The utility model provides a roadway-side support device of a gob-side entry retaining, which comprises a roadway-side gangue blocking support assembly 1 and a roadway-side support support assembly 2, wherein: Figure 1 The roadway-side gangue blocking support assembly 1 is arranged on the step 5 adjacent to the roadway 4 of the gob area 3, and the roadway-side gangue blocking support assembly 1 comprises a support body 11 and a roof support body 12 arranged on the support body 11, the support body 11 is used for preventing the gangue rolled from the gob area 3, and the roof support body 12 is used for supporting the roof above the gob area 3.

[0025] The roadway-side support support assembly 2 is arranged on the step 5 and located between the roadway-side gangue blocking support assembly 1 and the roadway 4, and the roadway-side support support assembly 2 comprises a shaped member 21 and a filling material 22 arranged in the shaped member 21, the filling material 22 makes the shaped member 21 form a stable structure, which is used for forming a sidewall of the roadway 4 adjacent to the gob area 3 together with the step 5. Specifically, the roadway-side support support assembly 2 can be a continuous structure along the extension direction of the roadway 4, or a plurality of structures arranged at intervals along the extension direction of the roadway 4.

[0026] The roadway-side support support assembly 2 is arranged on the step 5 and located between the roadway-side gangue blocking support assembly 1 and the roadway 4, and the roadway-side support support assembly 2 comprises a shaped member 21 and a filling material 22 arranged in the shaped member 21, the filling material 22 makes the shaped member 21 form a stable structure, which is used for forming a sidewall of the roadway 4 adjacent to the gob area 3 together with the step 5. Specifically, the roadway-side support support assembly 2 can be a continuous structure along the extension direction of the roadway 4, or a plurality of structures arranged at intervals along the extension direction of the roadway 4.

[0027] The utility model discloses, through the support body 11 in along empty leave lane construction prevents the gangue that empties the area 3 rolls down, through roof support body 12 is used for supporting the roof above the empty area 3, the roadside support assembly 2 is arranged on the step 5 of empty area 3, and with step 5 jointly constitutes the lateral wall of roadway 4, can save more than half material, and then reduce the consumption of material, improve construction efficiency.

[0028] Specifically, the roadside gangue blocking support assembly 1 is arranged on the step 5 adjacent to the roadway 4 in the goaf 3, wherein the support body 11 can effectively block the gangue rolling down from the goaf 3. In the actual mining process, the goaf 3 often has gangue rolling down, and if there is no effective protection measures, the gangue will flow into the roadway 4 and cause safety hazards. In the along empty leave lane construction process, the gangue in the goaf 3 also rolls down, and the support body 11 can prevent the gangue rolling down from the goaf 3 from affecting the roadside support assembly 2 in the along empty leave lane construction process. At the same time, the roof support body 12 supports the roof upward to prevent the roof from collapsing. The roadside support assembly 2 forms a stable lateral wall between the roadside gangue blocking support assembly 1 and the roadway 4, and together with the step 5 forms the wall surface of the roadway 4. This design fully utilizes the step 5 of the goaf 3 as a support foundation, and can save more than half of the support material compared with the traditional support method.

[0029] In the related art, the roadside support device for the medium-thick coal seam along empty leave lane is generally arranged directly in the roadway 4. However, the total amount of coal resources and economic value of the thin coal seam is relatively low, and the height of the roadway 4 (usually 2.8m~3m) cannot be further reduced. Under the current situation, the leave lane method and the leave lane cost are basically the same as the general medium-thick coal seam along empty leave lane, which directly leads to high cost and low construction efficiency of the roadside support device for the thin coal seam along empty leave lane

[0030] In the embodiments of the utility model, for the thin coal seam along empty leave lane, the roadside gangue blocking support assembly 1 and the roadside support assembly 2 are arranged on the step 5 adjacent to the roadway 4 in the goaf 3. The support body 11 of the roadside gangue blocking support assembly 1 plays a role in supporting the roof support body 12 and protecting the gangue rolling down from the lateral side of the goaf 3. The roof support body 12 is used for supporting the roof above the goaf 3. The roadside support assembly 2 and the step 5 jointly form the lateral wall of the roadway 4, which is used for ensuring the strength of the roadside support structure along empty leave lane. Moreover, the roadside gangue blocking support assembly 1 and the roadside support assembly 2 are arranged on the step 5, which can save more than half of the support material in the height direction, reduce the material cost, and improve the construction efficiency compared with the support device arranged in the roadway 4.

[0031] The supporting body 11 is movable, and when the gob-side entry retaining construction is performed, the supporting body 11 has a temporary fixing effect on the roof of the goaf 3, and when the gob-side supporting and supporting assembly 2 is completed, the roof is mainly supported by the roof supporting body 12. The supporting body 11 advances with the working face. The gob-side supporting and supporting assembly 2 not only forms a sidewall support of the roadway 4 together with the step 5, but also supports the roof of the goaf 3, and forms a stable gob-side supporting structure.

[0032] In some embodiments, the gob-side supporting and supporting assembly 2 further comprises a plastic fixing assembly 23 arranged in the forming member 21, which internally supports the forming member 21, and is used to maintain the shape of the forming member 21 before the filling material 22 is injected into the forming member 21.

[0033] In the utility model, the plastic fixing assembly 23 is added to internally support the forming member 21 and maintain the shape stability. For example, after the flexible mold bag is installed at the construction site, the plastic fixing assembly 23 can maintain the predetermined shape of the flexible mold bag through the supporting effect, and local deformation or expansion is avoided. In this way, when the filling material 22 is injected, the filling can be ensured to be uniform, the size of the finally formed supporting structure is accurate and the strength is uniform, and the supporting effect is guaranteed.

[0034] In addition, the plastic fixing assembly 23 can also be combined with the filling material 22 in the forming member 21, and the strength of the whole gob-side supporting and supporting assembly 2 is further guaranteed.

[0035] In some embodiments, the plastic fixing assembly 23 comprises at least one of a mesh, a counter-pulling anchor rod and a ceiling anchor rod.

[0036] In the utility model, the plastic fixing assembly 23 comprises at least one of a mesh, a counter-pulling anchor rod and a ceiling anchor rod, and the specific form of the plastic fixing assembly 23 is clear, including a mesh, a counter-pulling anchor rod and a ceiling anchor rod. In actual application, different assembly forms can be selected according to specific conditions. For example, when the roof of the roadway 4 is relatively broken, the combination mode of the mesh and the ceiling anchor rod can be preferentially selected; when the lateral pressure is large, the use density of the counter-pulling anchor rod can be increased. This flexible combination mode makes the supporting system adapt to different geological conditions and improves the supporting adaptability.

[0037] In some embodiments, the gob-side supporting and supporting assembly 2 further comprises a roof mesh 13 arranged at the top of the supporting body 11, and the roof mesh 13 is fixed to the bottom of the roof through the roof supporting body 12.

[0038] In the actual use process of the mine, the setting of the roof mesh 13 has an important role in strengthening the supporting effect. By setting the roof mesh 13 on the top of the support body 11 and connecting the bottom of the roof support body 12, a continuous supporting surface is formed. This design can disperse the pressure when the roof pressure suddenly increases, avoid local stress concentration, and improve the supporting strength.

[0039] In some embodiments, the roof mesh 13 includes at least one of a flexible mesh, a diamond mesh, a steel mesh, and a warp and weft mesh.

[0040] In the actual situation of complex and variable conditions of the mine roof, different types of roof mesh 13 have their own application advantages. The flexible mesh, the diamond mesh, the steel mesh, and the warp and weft mesh provided by the claim can solve different problems. For example, when the roof is severely broken, the good ductility of the flexible mesh can prevent the blocky gangue from falling; when the roof is relatively complete but has cracks, the tensile strength and grid structure of the diamond mesh can effectively prevent the sporadic falling block. This diversified mesh selection improves the adaptability of the supporting system, and selecting the appropriate roof mesh 13 according to the actual situation can significantly reduce the material cost.

[0041] In some embodiments, the forming member 21 includes at least one of a flexible mold bag and an iron sleeve; and / or, the support body 11 includes at least one of a gangue blocking support, a single hydraulic prop, and a wooden point column; and / or, the roof support body 12 includes at least one of an anchor rod and an anchor cable.

[0042] In the actual construction process, the selection of different forming members 21 and supporting components directly affects the supporting effect. For example, in a space-limited area, the flexible mold bag has good operability; in an area with high supporting requirements, the iron sleeve provides higher strength. In terms of the support body 11, a single hydraulic prop can be selected in an area with large dynamic pressure, which is convenient for timely adjusting the supporting force; in an area mainly under static load, the wooden point column has better economy. The use of anchor rods or anchor cables in the roof support body 12 can be determined according to the characteristics of the roof rock stratum. This diversified selection scheme makes the supporting system achieve the best supporting effect under different geological conditions, and can optimize the cost according to the site conditions, thereby improving the comprehensive economic benefit.

[0043] Specifically, the forming member 21 includes, but is not limited to, various wall and column molds such as flexible mold bags and iron sleeves; and the filling material 22 includes, but is not limited to, various filling materials such as concrete and high-water materials. The filling material 22 is poured into the forming member 21 and fixed to form, so that the forming member 21 has sufficient supporting strength for the roadside support of the gob-side entry.

[0044] In some embodiments, the height of the roadside supporting support assembly 2 is consistent with the working face mining height of the goaf 3; and / or, the thickness of the roadside supporting support assembly 2 is 0.6m-1.5m.

[0045] In the thin coal seam mining, the size parameters of the supporting body directly relate to the supporting effect and economy. The embodiment provides that the height of the roadside supporting support assembly 2 is consistent with the working face mining height, which guarantees the seamless butt joint of the supporting structure and the goaf 3; the thickness of 0.6m-1.5m is based on a large amount of engineering practice experience. Specifically, when the surrounding rock of the roadway 4 is relatively stable, a smaller thickness can be used to save materials; when the surrounding rock is broken, the thickness can be increased to improve the supporting strength. This parameter optimization design saves about 20% of materials compared with the traditional fixed size design, while guaranteeing the supporting effect.

[0046] The gob-side entry retaining roadside supporting device protects the gangue rolled down from the goaf 3 through the supporting body 11, supports the roof above the goaf 3 through the roof supporting body 12, and arranges the roadside supporting support assembly 2 on the step 5 of the goaf 3 and forms the sidewall of the roadway 4 together with the step 5, which can save more than half of the materials, thereby reducing the consumption of materials and improving the construction efficiency.

[0047] As shown in Figure 2 The utility model embodiment provides a kind of supporting method of the above-mentioned gob-side entry retaining roadside supporting device, comprising the following steps:

[0048] S1, roadside gangue retaining support assembly 1 construction: roadside gangue retaining support assembly 1 is arranged on the step 5 of the goaf 3 adjacent to the roadway 4;

[0049] S2, roadside supporting support assembly 2 construction: after roadside gangue retaining support assembly 1 construction is completed, roadside supporting support assembly 2 is arranged on the step 5 of the goaf 3.

[0050] The construction sequence established by the embodiment provided in the utility model accords with the mine safety production law. In actual construction, first, roadside gangue retaining support assembly 1 can quickly establish a protective barrier, block the gangue of the goaf 3, control the roof, and create safe conditions for subsequent construction. After the first line of defense is established, roadside supporting support assembly 2 is constructed to form a permanent supporting structure. This step-by-step construction scheme significantly improves construction safety compared with the traditional one-time supporting method, effectively improves construction efficiency, and significantly improves the working environment of workers.

[0051] In some embodiments, roadside gangue retaining support assembly 1 includes roof mesh 13 arranged on the top of supporting body 11, and roadside gangue retaining support assembly 1 construction includes:

[0052] S11, roof mesh 13 is laid under the roof, and roof mesh 13 is fixed by roof supporting body 12.

[0053] S12, support the roof and the roof support body 12 by setting the support body 11 on the step 5.

[0054] The embodiment provided by the utility model further puts forward a more optimized construction sequence for the construction steps of the gangue blocking support assembly 1 beside the roadway. In the actual mine construction process, this construction scheme of "first roof and then bottom" has important technical value:

[0055] Firstly, by means of laying the roof mesh 13 under the roof in advance and fixing it by the roof support body 12, the roof can be controlled at the first time. The practical significance of this method lies in that the roof of the mine often has the conditions of crack development and broken rock stratum, and roof fall accident is most likely to occur when it is first exposed. At this time, the roof mesh 13 is laid preferentially, so that a protective surface can be quickly formed to avoid sporadic falling blocks from hurting people. The mesh is fixed in time by the roof support body 12 (such as an anchor rod, an anchor cable), so that the mesh is closely attached to the roof, and the timeliness and effectiveness of the support are improved. Practice shows that this way can reduce the initial separation of the roof by about 40%.

[0056] Secondly, the support body 11 is set after the roof protection is completed, and this sequence has the following advantages: the safety of the construction personnel is significantly improved under the condition of roof protection, and the accident rate can be reduced by about 60%. The installation position of the support body 11 is more accurate, because the roof has been controlled at this time, and the position reference is more accurate. The cooperation between the support body 11 and the roof support body 12 is better, and an overall support system can be formed, and the support effect is improved by about 35%.

[0057] From the construction technology point of view, this construction sequence can also bring the following benefits: the construction interference is reduced, the processes can be continuously carried out, and the construction efficiency is improved by about 30%. The material transportation and installation are more orderly, the material loss is reduced, and the material utilization rate is improved by about 20%. Quality control and acceptance are facilitated, and each process can be effectively checked.

[0058] In some embodiments, the support support assembly 2 beside the roadway comprises a plastic fixing assembly 23 arranged in the shaped member 21, and the construction of the support support assembly 2 beside the roadway comprises:

[0059] S21, fixing the shaped member 21 between the gangue blocking support assembly 1 and the roadway 4;

[0060] S22, the plastic fixing assembly 23 is arranged in the shaped member 21 and supports the shaped member 21 from the inside;

[0061] S23, injecting the filling material 22 into the shaped member 21.

[0062] The embodiment provided in the utility model provides detailed operation guidance for the construction process of the roadside supporting and supporting assembly 2. In actual construction, the basic shape is first determined by fixing the forming component 21, the temporary support is provided by loading the shaping and fixing assembly 23, and finally the filling material 22 is injected. This construction sequence solves the problems of easy deformation of the forming component 21 and uneven filling in traditional construction. For example, when using a flexible mold bag, the filling material 22 is more evenly distributed, the compactness is improved by about 30%, and the integrity and stability of the supporting structure are significantly enhanced.

[0063] Optionally, the shaping and fixing assembly 23 can be first loaded into the forming component 21, then the forming component 21 loaded with the shaping and fixing assembly 23 is fixed between the roadside gangue blocking and supporting assembly 1 and the roadway 4, then the filling material 22 is injected into the forming component 21, and the filling material 22 is solidified and formed into a stable support wall.

[0064] Specifically, during the roadway retaining process, the roadside gangue blocking and supporting assembly 1 is first constructed as the working face advances, the shaping and fixing assembly 23 is used to install the forming component 21 to the specified position after the roadside gangue blocking and supporting assembly 1 is in place, and the internal filling material is pumped into the forming component 21 by a specific pump group, and the construction is completed.

[0065] In a specific embodiment, the roadside supporting method for gob-side entry retaining provided by the utility model is mainly used for thin coal seam mining. First, the roof mesh 13 is laid under the roof, and the roof mesh 13 is fixed by the roof supporting body 12; the supporting body 11 is arranged on the step 5 to support the roof and the roof supporting body 12, and the construction of the roadside gangue blocking and supporting assembly 1 is completed. Then the construction of the roadside supporting and supporting assembly 2 is carried out, the forming component 21 is first fixed between the roadside gangue blocking and supporting assembly 1 and the roadway 4; the shaping and fixing assembly 23 is loaded into the forming component 21 and supports the forming component 21 from the inside; the filling material 22 is injected into the forming component 21, and the filling material 22 is solidified and formed into a stable support.

[0066] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, that is, they can be located in one place, or distributed on multiple network units. According to actual needs, part or all of the modules can be selected to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0067] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A roadside support device for gob-side entry retention, characterized in that: include: A roadside gangue support assembly (1) is arranged on a step (5) adjacent to a roadway (4) in a goaf (3), the roadside gangue support assembly (1) comprising a support body (11) and a roof support body (12) arranged on the support body (11), the support body (11) being used to protect gangue from rolling down from the goaf (3), and the roof support body (12) being used to support a roof above the goaf (3); A roadside support assembly (2) is arranged on the step (5) and is located between the roadside gangue retaining support assembly (1) and the roadway (4). The roadside support assembly (2) includes a forming component (21) and a filling material (22) arranged in the forming component (21). The filling material (22) enables the forming component (21) to form a stable structure, which is used to form a side wall of the roadway (4) adjacent to the goaf (3) together with the step (5).

2. The gob-side entry retaining roadway support device according to claim 1 is characterized in that: The roadside support assembly (2) further includes a shaping and fixing assembly (23) disposed within the forming member (21), wherein the shaping and fixing assembly (23) internally supports the forming member (21) and is used to maintain the shape of the forming member (21) before the filling material (22) is injected into the forming member (21).

3. The gob-side entry retaining roadway support device according to claim 2 is characterized in that: The shaping and fixing assembly (23) comprises at least one of a mesh, a tension anchor rod and a ceiling anchor rod.

4. The gob-side entry retaining roadway support device according to claim 1 is characterized in that: The roadside rock retaining support assembly (1) further comprises a roof mesh (13) arranged on the top of the support body (11), and the roof mesh (13) is fixed to the bottom of the roof through the roof support body (12).

5. The gob-side entry retaining roadway support device according to claim 4 is characterized in that: The top plate mesh (13) comprises at least one of a flexible mesh, a diamond mesh, a steel mesh and a warp and weft mesh.

6. The gob-side entry retaining roadway support device according to any one of claims 1 to 5, characterized in that: The forming component (21) includes at least one of a flexible mold bag and a metal sleeve.

7. The gob-side entry retaining roadway support device according to any one of claims 1 to 5, characterized in that: The support body (11) comprises at least one of a rock retaining support, a single hydraulic prop, and a wooden point column.

8. The gob-side entry retaining roadway support device according to any one of claims 1 to 5, characterized in that: The roof support body (12) includes at least one of an anchor rod and an anchor cable.

9. The gob-side entry retaining roadway support device according to any one of claims 1 to 5, characterized in that: The height of the roadside support assembly (2) is consistent with the working face mining height of the goaf (3).

10. The gob-side entry retaining roadway support device according to any one of claims 1 to 5, characterized in that: The thickness of the laneside support assembly (2) is 0.6m-1.5m.

Images