Construction technology of access road type filling retaining wall
Through a new construction process of the projectile filling retaining wall, using specific materials and structural design, the problems of complex construction, long construction period and high cost in the existing technology are solved, and the construction is simple, short construction period and high efficiency are achieved, and it is suitable for the rapid completion of the mining projectile filling connection production.
Patent Information
- Application Number
- CN202411894889.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-21
- Publication Date
- 2025-04-18
AI Technical Summary
The existing construction process of the access-type filling retaining wall has problems such as low stability, complex construction, long construction period, high cost and unsatisfactory results, which seriously restricts the safety of mine production.
A construction process for filling retaining walls is adopted, including the use of hollow bricks with a thickness of 600mm, wooden columns with a thickness of 150×150mm, wooden boards with a 300mm×1.2m×20mm, wooden boards and geotextiles, through the vein, construction of wooden columns, digging down to the original rock, erecting wooden columns in the middle, erecting them to the roof, building hollow brick walls on both sides, spraying and sealing, setting up overflow grooves and overflow plates, and venting pipes. When filling, the filling is discharged from the inside to the outside, overflow water automatically flows out, gradually closing the overflow port, stop filling and flushing the pipeline when the slurry is flowed out of the inspection tube.
It has achieved simple construction technology, short construction period, high drainage efficiency, high filling efficiency, and one-day installation and solidification of retaining walls, which is convenient for pipe breakage and checking the filling effect, low cost and good pressure bearing capacity, and can recover some of the filling pipelines, which are suitable for mines that quickly complete the production of feeding and filling.
Smart Images
Figure CN119844147A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mining, and in particular to a construction process of an approach-type filling retaining wall. Background Art
[0002] In the mining process, backfill mining is widely used. Backfill retaining wall is an important part of backfill mining method. Its purpose is to seal the backfill slurry in the goaf, so as to achieve the important purpose of connecting the backfill false roof (bottom) with the mining area. How to design the retaining wall and quickly complete the backfilling work plays a vital role in mining production. Backfill retaining wall is an important facility in backfilling operation, and its performance directly affects the backfilling effect and mine safety.
[0003] In general approach mining, the approach is large, with a width of at least 8m and a height of more than 4m. The filling retaining wall needs to be constructed with a section of 8*4, which greatly reduces the stability, makes the construction process relatively complicated, and leads to a relatively long construction period, high cost, and unsatisfactory effect, which seriously restricts the safety of mine production in the production process. Therefore, we need a filling retaining wall that is convenient for construction, saves costs, and can solve problems such as drainage and broken pipes to meet production needs. Summary of the invention
[0004] The purpose of the present invention is to provide a construction process for an entry-type filling retaining wall, thereby solving the problems raised in the above-mentioned background technology.
[0005] The technical solution adopted by the present invention is as follows:
[0006] A construction process for an approach-type filling retaining wall comprises the following steps:
[0007] S1. Select the following materials: hollow bricks with a thickness of 600mm, wooden columns with a cross-section of 150×150mm, wooden boards with a width of 300mm, a length of 1.2m, and a thickness of 20mm, and some geotextiles;
[0008] S2. Select an appropriate location near the vein entrance, pick the top of the vein, construct a wooden column nest, and dig down to the original rock;
[0009] S3. Construct the retaining wall, erect two wooden columns in the middle, and erect them to the top plate cavity. Build hollow brick walls with a thickness of 600mm on both sides, and seal them with spray mortar on both sides. The thickness of the spray mortar is not less than 40mm. An overflow trough with a width of 500-800mm is set in the middle. An overflow plate is set inside the overflow trough. The filling pipe and exhaust pipe are laid in the middle of the baffle or on both sides of the retaining wall. Multiple exhaust pipes can be arranged according to the length of the inlet. The inlet filling pipe is laid on the top plate. When the inside is full and the pipe is cut during the filling process, the broken filling pipe is recovered;
[0010] S4. When filling, the material is poured from the inside to the outside. The filling material settles from the inside to the outside, and the overflow water flows out automatically. As the slurry continues to rise, the clean water overflowing from the surface continuously flows out from the overflow trough of the retaining wall. Whenever a small amount of mixed slurry overflows, an overflow baffle is nailed on, and the process is repeated in sequence until the top overflow plate closes the overflow port. When slurry flows out of the inspection tube, the filling is stopped immediately, and the pipeline is flushed with clean water.
[0011] During the first shift of filling, materials are poured into the retaining wall to form a sediment filling body for reinforcement, and then the pipeline is restored for normal filling. When going uphill through the vein, wooden boards and square wood are used to reinforce the retaining wall.
[0012] An inspection pipe is arranged on the top of the middle overflow tank.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0014] The invention has simple construction process, short construction period, high drainage efficiency, high filling efficiency, can complete the installation and solidification of the retaining wall in one day, is convenient for pipe cutting and filling effect inspection, has low cost, good pressure bearing capacity, and can recycle part of the filling pipeline, which plays a good role in mines that need to quickly complete the access filling and production connection. It is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the construction position of the present invention;
[0016] Figure 2 It is a front view of the present invention;
[0017] Figure 3 is a side view of the present invention;
[0018] Figure 4 A top view of the present invention;
[0019] As shown in the figure: 1. Inspection pipe; 2. Filling pipe; 3. Exhaust pipe; 4. Overflow plate; 5. Hollow brick; 6. Column. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the present invention.
[0023] Example 1
[0024] like Figure 1-4 This embodiment provides a construction process for a road-type filling retaining wall, comprising the following steps:
[0025] S1. Selected materials: hollow bricks with a thickness of 600mm, wooden columns with a cross-section of 150×150mm, wooden boards with a width of 300mm, a length of 1.2m, a thickness of 20mm, and some geotextiles.
[0026] S2. Figure 1 , choose an appropriate location near the entrance of the vein. Pick the top of the vein, construct the wooden column nest, and dig down to the original rock.
[0027] S3. Figure 2-4 , construct the retaining wall, set up two wooden columns 6 in the middle, erect them to the top plate nest, build hollow brick walls with hollow bricks 5 on the left and right sides, the hollow brick retaining wall is 600mm thick, and the two sides are closed by spraying, the spraying thickness is not less than 40mm, and the overflow trough is left in the middle with a width of 500-800mm. Several overflow plates 4 (wooden boards) are set in the overflow trough from bottom to top. The filling pipe 2 and the exhaust pipe 3 can be arranged in the middle of the baffle (overflow plate) or on both sides of the retaining wall. Multiple exhaust pipes 3 can be arranged according to the length of the access road. An inspection pipe 1 is arranged on the top of the middle overflow trough.
[0028] S4. The inlet filling pipeline is laid on the top plate. When the interior is full and the pipe is cut during the filling process, the broken filling pipeline is recovered to save costs.
[0029] S5. When filling, the material is discharged from the inside to the outside. The filling material settles from the inside to the outside, and the overflow water flows out automatically. As the slurry continues to rise, the clean water overflowing from the surface flows out from the overflow trough of the retaining wall. Whenever a small amount of slurry overflows, an overflow baffle is nailed on, and this is done in sequence until the top overflow plate closes the overflow port. When the slurry flows out of the inspection pipe, the filling is stopped immediately, and clean water is released to flush the pipeline. If conditions permit, a three-way valve can be installed to discharge the water from the washing pipe into the pipeline.
[0030] To ensure the bottom of the retaining wall is firm, the retaining wall can be filled with materials in the first shift to form a sediment filling body for reinforcement, and normal filling can be carried out after the pipeline is restored. When crossing the vein uphill, wooden boards and square wood can be used to reinforce the retaining wall.
[0031] The invention has the advantages of simple construction process, short construction period, high drainage efficiency and high filling efficiency. The installation and solidification of the retaining wall can be completed in one day. It is convenient to cut off the pipe and check the filling effect. It has low cost and good pressure bearing capacity. Part of the filling pipeline can be recovered. It plays a good role in mines that need to quickly complete the access filling and connect production.
Claims
1. A construction process for an approach-type filling retaining wall, characterized in that: The following steps are included: S1. Select the following materials: hollow bricks with a thickness of 600mm, wooden columns with a cross-section of 150×150mm, wooden boards with a width of 300mm, a length of 1.2m, and a thickness of 20mm, and some geotextiles; S2. Select an appropriate location near the vein entrance, pick the top of the vein, construct a wooden column nest, and dig down to the original rock; S3. Construct the retaining wall, erect two wooden columns in the middle, and erect them to the top plate cavity. Build hollow brick walls with a thickness of 600mm on both sides, and seal them with spray mortar on both sides. The thickness of the spray mortar is not less than 40mm. An overflow trough with a width of 500-800mm is set in the middle. An overflow plate is set inside the overflow trough. The filling pipe and exhaust pipe are laid in the middle of the baffle or on both sides of the retaining wall. Multiple exhaust pipes can be arranged according to the length of the inlet. The inlet filling pipe is laid on the top plate. When the inside is full and the pipe is cut during the filling process, the broken filling pipe is recovered; S4. When filling, the material is poured from the inside to the outside. The filling material settles from the inside to the outside, and the overflow water flows out automatically. As the slurry continues to rise, the clean water overflowing from the surface continuously flows out from the overflow trough of the retaining wall. Whenever a small amount of mixed slurry overflows, an overflow baffle is nailed on, and the process is repeated in sequence until the top overflow plate closes the overflow port. When slurry flows out of the inspection tube, the filling is stopped immediately, and the pipeline is flushed with clean water.
2. The construction process of a road-type filling retaining wall according to claim 1 is characterized in that: During the first shift of filling, materials are poured into the retaining wall to form a sediment filling body for reinforcement, and then the pipeline is restored for normal filling. When going uphill through the vein, wooden boards and square wood are used to reinforce the retaining wall.
3. The construction process of a road-type filling retaining wall according to claim 1 is characterized in that: An inspection pipe is arranged on the top of the middle overflow tank.