阅读说明：本技术 一种格栅式泌水充填挡墙 (Grid type bleeding filling retaining wall ) 是由 邓高岭 *** 郑伯坤 黄腾龙 盛佳 张升 张凌云 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种格栅式泌水充填挡墙,涉及矿山充填技术领域。包括挡墙组件、前支撑墙、后支撑墙,其特征在于所述挡墙组件包括格栅模袋,所述格栅模袋设置于巷道内且位于所述前支撑墙和所述后支撑墙之间,所述后支撑墙位于待充填区一侧,所述格栅模袋设置有贯穿所述格栅模袋的挡墙泌水孔,所述格栅模袋前侧设置有进料口和排气孔。设置好前、后支撑墙及挡墙组件后,往格栅模袋内充入充填料浆,可达到有效封堵待充空区采场巷道的目的,待充填料浆凝固后可取下前支撑墙,重复利用。本发明的技术方案,施工速度快捷,稳定性好,成本低廉,适应各种巷道断面,可广泛适用于各种待充填采场空区做充填挡墙。(The invention discloses a grid type bleeding filling retaining wall, and relates to the technical field of mine filling. Including barricade subassembly, preceding supporting wall, back supporting wall, its characterized in that the barricade subassembly includes grid die bag, grid die bag sets up in the tunnel and is located preceding supporting wall with between the back supporting wall, back supporting wall is located and treats filling district one side, grid die bag is provided with and runs through the hole is secreted to the barricade of grid die bag, grid die bag front side is provided with feed inlet and exhaust hole. After the front and rear supporting walls and the retaining wall assemblies are arranged, filling slurry is filled into the grid mold bag, the aim of effectively plugging a stope roadway of the to-be-filled goaf can be achieved, and the front supporting wall can be taken down after the filling slurry is solidified and can be recycled. The technical scheme of the invention has the advantages of rapid construction speed, good stability and low cost, is suitable for various roadway sections, and can be widely applied to various stope goafs to be filled to serve as filling retaining walls.)

1. The utility model provides a grid formula bleeding fills barricade, includes barricade subassembly (1), preceding supporting wall (2), back supporting wall (3), its characterized in that barricade subassembly (1) includes grid die bag (11), grid die bag (11) set up in the tunnel and are located preceding supporting wall (2) with between back supporting wall (3), back supporting wall (3) are located and wait to fill district (4) one side, preceding supporting wall (2) are located and wait to fill district (4) opposite one side, grid die bag (11) are provided with and run through the hole (1101) is secreted to the barricade of grid die bag (11), grid die bag (11) are located preceding supporting wall (2) one side is provided with feed inlet (1102) and exhaust hole (1103).

2. The grid type bleeding filling retaining wall as claimed in claim 1, wherein the cross section of the grid pattern bag (11) in the radial direction of the roadway is larger than that of the roadway, so that the grid pattern bag (11) can fill the entire roadway, and the retaining wall bleeding holes (1101) are parallel to the roadway in the penetrating direction.

3. The grid type bleeding-filled retaining wall as claimed in claim 1, wherein the retaining wall assembly (1) further comprises a top fixing assembly (13), and the grid form bag (11) is fixed on the top and both side walls of the roadway by the top fixing member (13).

4. A grid-type weep-filled retaining wall as claimed in claim 3, wherein said top retainer (13) is a snap fit.

5. The grid type bleeding-filled retaining wall as claimed in claim 2, wherein the retaining wall assembly (1) further comprises a geotextile (12), the geotextile (12) is arranged between the grid form bag (11) and the rear supporting wall (3) and is hung on the rear supporting wall (3).

6. The grid type bleeding filling retaining wall as claimed in claim 1, wherein the front supporting wall (2) comprises a connecting plate (21), a hinge assembly (23), a locking assembly (24) and a telescopic rod (22), wherein one side of the connecting plate (21) is provided with a T-shaped slot in two directions, the hinge assembly (23) is fixed with the connecting plate (21) through the locking assembly (24), and the telescopic rod (22) is connected with the hinge assembly (23).

7. The grid type bleeding filling retaining wall as claimed in claim 6, wherein the hinge assembly (23) comprises a connecting member (2301), a connecting pin (2302) and a connecting seat (2303), one end of the connecting member (2301) is hinged to the connecting seat (2303) through the connecting pin (2302), the other end of the connecting member (2301) is connected to the telescopic rod (22), and the connecting seat (2303) is connected to the connecting plate (21) through a locking assembly (24).

8. The grid type bleeding-filled retaining wall as claimed in claim 7, wherein said locking assembly (24) comprises a locking screw (2401) and a locking nut (2402), said locking screw (2401) passes through the through hole of said connecting seat (2303) and is connected with the locking nut (2402) disposed in the T-shaped slot of the connecting plate (21).

9. The grid type bleeding filling retaining wall as claimed in claim 1, wherein the rear supporting wall (3) comprises a transverse supporting rod (31), a vertical supporting rod (32), a transverse fixing member (33) and a vertical fixing member (34), the transverse fixing member (33) is fixed on the upper side of the roadway, the vertical fixing member (34) is fixed on the bottom and the top of the roadway, a plurality of transverse supporting rods (31) are arranged side by side, both ends of the transverse supporting rod (31) are fixed with the transverse fixing member (33), and are arranged side by side with the vertical supporting rod (32), and both ends of the vertical supporting rod (32) are fixed with the vertical fixing member (34).

10. The grid type bleeding filling retaining wall as claimed in claim 9, wherein the horizontal support rods (31) and the vertical support rods (32) are kept away from the retaining wall bleeding holes (1101) on the grid mold bag (11).

Technical Field

The invention relates to the technical field of mine filling, in particular to a grid type bleeding filling retaining wall.

Background

In order to solve the difficult problems of geological disasters such as surface rock migration, collapse, deep rock burst, rock burst and the like in the mining process, the filling mining method is increasingly applied, and compared with an open stope method and a caving method, the filling mining method has the remarkable technical advantages of wide adaptation conditions, low mining loss and dilution rate, contribution to maintaining the ground pressure, stable stope, easiness in realizing green mining of mines and the like, and is increasingly widely applied.

The main disadvantages of the filling method are complex process, high mining cost and low production efficiency. The filling retaining wall is an essential process link in a filling mining method, and is used for constructing a sealing wall in a roadway at the bottom inlet of a goaf of a stope to be filled to seal the goaf, so that filling slurry filled into the goaf cannot flow out of the stope, and the requirements on the filling retaining wall technically mainly comprise: has certain strength, good integrity and good sealing effect. The construction of the current domestic and foreign filling retaining wall mainly comprises: (1) the method for building the retaining wall adopts materials such as hollow bricks to build and fill the retaining wall, and the outer surface of the retaining wall is sprayed with slurry for reinforcement, the method has the advantages of low cost and simple construction process, but has the defects of low construction efficiency, long operation period, infirm retaining wall, collapse of the retaining wall and frequent slurry leakage accidents, and serious conditions can cause scrapping of underground equipment and life safety of personnel; (2) the method for building the wall by spraying the concrete is characterized in that a filling retaining wall curtain is bound at the designed position of a retaining wall by using a steel mesh, gunny bag cloth, reinforcing steel bars and the like, the filling retaining wall curtain is fixed on an anchor rod reserved on the top side of a roadway, and then wet spraying concrete is sprayed on the curtain by using a wet spraying trolley.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, the present invention provides a grid type bleeding filling retaining wall.

The invention aims to solve the technical problem of poor bleeding of the filling retaining wall, and adopts the technical means of the grid mould bag to achieve the technical effect of quickly dehydrating the filling slurry in the stope.

The invention is realized by the following technical scheme.

The utility model provides a grid formula bleeding fills barricade, includes barricade subassembly, preceding supporting wall, back supporting wall, and its characterized in that the barricade subassembly includes grid die bag, grid die bag sets up in the tunnel and is located preceding supporting wall with between the back supporting wall, back supporting wall is located treats filling area one side, preceding supporting wall is located treats opposite one side of filling area, grid die bag is provided with and runs through the barricade bleeding hole of grid die bag, grid die bag is located preceding supporting wall one side is provided with feed inlet and exhaust hole.

Preferably, the cross section of the grid mould bag along the radial direction of the roadway is larger than that of the roadway, so that the whole roadway can be filled with the grid mould bag, and the penetration direction of the retaining wall drainage holes is parallel to the roadway.

Preferably, the retaining wall component further comprises a top fixing component, and the grid mold bag is fixed on the top and the two side walls of the roadway through the top fixing component.

Preferably, the top fixing piece is a buckle.

Preferably, the retaining wall component further comprises geotextile, wherein the geotextile is arranged between the grid die bag and the rear supporting wall and is hung on the rear supporting wall.

Preferably, the front supporting wall comprises a connecting plate, a hinge assembly, a locking assembly and a telescopic rod, wherein a T-shaped groove in the transverse direction and the vertical direction is formed in one side of the connecting plate, the hinge assembly is fixed to the connecting plate through the locking assembly, and the telescopic rod is connected with the hinge assembly.

Preferably, the hinge assembly comprises a connecting piece, a connecting pin and a connecting seat, one end of the connecting piece is hinged to the connecting seat through the connecting pin, the other end of the connecting piece is connected with the telescopic rod, and the connecting seat is connected with the connecting plate through a locking assembly.

Preferably, the locking assembly comprises a locking screw and a locking nut, and the locking screw penetrates through the through hole of the connecting seat to be in threaded connection with the locking nut arranged in the T-shaped groove of the connecting plate.

Preferably, the rear supporting wall comprises a transverse supporting rod, a vertical supporting rod, a transverse fixing piece and a vertical fixing piece, the transverse fixing piece is fixed on the side walls on two sides of the roadway, the vertical fixing piece is fixed on the bottom and the top of the roadway, the transverse supporting rods are arranged side by side, two ends of each transverse supporting rod are fixed to the corresponding transverse fixing piece, the transverse supporting rods are arranged side by side with the vertical supporting rod, and two ends of each vertical supporting rod are fixed to the vertical fixing piece.

Preferably, the horizontal supporting rods and the vertical supporting rods are all kept away from the retaining wall drainage holes in the grid mold bag.

Compared with the prior art, the invention has the beneficial effects that: (1) the construction speed is fast. The traditional masonry retaining wall is low in cost and simple in construction process, but is low in construction efficiency, long in masonry period and not firm; the sprayed concrete retaining wall has the advantages of high construction speed, firmness and the like, but the cost is too high. The construction speed of the grouting type filling retaining wall is high, the grid mould bags can be produced on the ground surface in batches, simple front and rear supporting walls are arranged on the underground frame, and the grid mould bags can be directly filled after being hung. The construction speed and the input service cycle of the method are improved by more than several times compared with the traditional retaining wall building method and are also lower than the construction time of a concrete spraying wall building method;

(2) the stability is good. The grid type bleeding filling retaining wall is a filling body substantially and is completely matched with the rugged roadway profile, the thickness of the filling retaining wall can be designed according to design requirements, the thickness of the retaining wall only increases the consumption of grid pattern cloth, the cost of the retaining wall is hardly influenced, and therefore the problem that the filling retaining wall is unstable and inclined does not exist. Because the front and rear supporting walls, the geotextile and the like are selected for comprehensive support, the filled retaining wall cannot be damaged and leaked, even if the retaining wall is locally leaked, emergency measures can be taken, and sudden large-scale slurry leakage accidents cannot be caused.

(3) The cost is low. The cost of the traditional masonry retaining wall is about 0.5-1 ten thousand yuan, the cost of the shotcrete retaining wall is about 2 ten thousand yuan, the cost of the slip casting type filling retaining wall is about 0.3 ten thousand yuan, and front supports can be repeatedly used;

(4) it is suitable for various tunnel sections. Due to the flexible characteristic of the grid mould bag, the grid mould bag has self-adaptability to different roadway profiles, and can be widely applied to various stopes.

(5) Good bleeding effect. Because the retaining wall water draining holes are formed in the grid mold bag, the geotextile matched with the side to be filled can quickly dewater the filling slurry on the side to be filled, so that the solidification of the filling area is accelerated, the filling period is shortened, and the working efficiency is improved. Meanwhile, the filling grid mould bag can be quickly dewatered to further shorten the filling period.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the front retaining wall structure of the present invention;

FIG. 4 is a schematic view of the retaining wall structure of the present invention;

FIG. 5 is a schematic view of the front retaining wall structure of the present invention;

FIG. 6 is a partial schematic view of portion A of FIG. 5 in accordance with the present invention;

in the figure: 1-retaining wall components; 11-grid mould bag; 1101-retaining wall drainage holes; 1102-a feed inlet; 1103-exhaust hole; 12-geotextile; 13-a top fixture; 2-front supporting wall; 21-a connecting plate; 22-a telescopic rod; 23-a hinge assembly; 2301-a connecting member; 2302-connecting pin; 2303-a connecting seat; 24-a locking assembly; 2401-locking screws; 2402-a locking nut; 3-rear supporting wall; 31-transverse support bar; 32-vertical support bars; 33-transverse fixing member; 34-vertical fixing pieces; 4-a region to be filled;

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.