阅读说明：本技术 袋式堆叠泄水充填挡墙及其构筑方法 (Bag type stacked drainage filling retaining wall and construction method thereof ) 是由 赖伟 于 2020-09-09 设计创作，主要内容包括：本发明公开了一种袋式堆叠泄水充填挡墙及其构筑方法,其中的挡墙包括若干由下至上依次堆叠布置的充填单体,该充填单体包括滤水挡墙模袋、网状格栅骨架、汇水管和出水管,所述滤水挡墙模袋包括充填腔和滤水腔,滤水腔面向待充填区布置,所述网状格栅骨架和汇水管由上至下的置于滤水腔内,在汇水管管壁上均布有数个汇水孔,所述出水管固定在滤水挡墙模袋底部,所述出水管的进口贯穿充填腔与滤水腔内部相连通布置,所述出水管的出口与充填区外侧连通布置,在所述充填腔内通过充填管灌装有充填料浆。本发明可增大滤水面积；可消减充填料浆的渗透势能；利用充填料浆灌装充填腔形成充填挡墙,挡墙构筑分摊成本低。(The invention discloses a bag-type stacked drainage filling retaining wall and a construction method thereof, wherein the retaining wall comprises a plurality of filling single bodies which are sequentially stacked from bottom to top, each filling single body comprises a water filtering retaining wall mold bag, a mesh grid framework, a water collecting pipe and a water outlet pipe, each water filtering retaining wall mold bag comprises a filling cavity and a water filtering cavity, the water filtering cavity is arranged towards a region to be filled, the mesh grid framework and the water collecting pipe are arranged in the water filtering cavity from top to bottom, a plurality of water collecting holes are uniformly distributed on the pipe wall of the water collecting pipe, the water outlet pipe is fixed at the bottom of the water filtering retaining wall mold bag, the inlet of the water outlet pipe penetrates through the filling cavity and is communicated with the inside of the water filtering cavity, the outlet of the water outlet pipe is communicated with the outside of the. The invention can increase the water filtering area; the osmotic potential energy of the filling slurry can be reduced; the filling slurry is filled into the filling cavity to form the filling retaining wall, and the construction and allocation cost of the retaining wall is low.)

1. The utility model provides a pocket type piles up sluicing and fills barricade which characterized in that: including a plurality of from lower to supreme piling up in proper order and arranging fill monomer (1), should fill the monomer including drainage barricade mould bag (11), netted grid skeleton (12), catchment pipe (13) and outlet pipe (14), drainage barricade mould bag is including filling chamber (111) and drainage chamber (112), and the drainage chamber face is to waiting to fill the district and arranges, netted grid skeleton and catchment pipe from top to bottom arrange the drainage intracavity in, the equipartition has several hole (131) of catchment on the catchment pipe wall, the outlet pipe is fixed in drainage barricade mould bag bottom, the import of outlet pipe is run through and is filled chamber and drainage intracavity portion intercommunication and arrange, the export and the district outside intercommunication of filling of outlet pipe are arranged fill the intracavity and have filling ground paste (7) through filling pipe (15).

2. The bag-type stacked run-out filled retaining wall according to claim 1, wherein: and a first cuff (113) for fixing a water outlet pipe is arranged at the bottom of the water filtering retaining wall mold bag.

3. The bag-type stacked run-out filled retaining wall according to claim 1, wherein: and a second cuff (114) for fixing a filling pipe is arranged at the top of the water filtering retaining wall mold bag.

4. The bag-type stacked run-out filled retaining wall according to claim 1, wherein: the water outlet pipe of each filling monomer is communicated with the outer side of the filling area through a water outlet pipe (2), and the water outlet pipe is provided with a quick connector (21) which is quickly connected with the water outlet pipe.

5. The bag-type stacked run-out filled retaining wall according to claim 4, wherein: the drain pipe is connected with a negative pressure drainage device (3).

6. The bag-type stacked run-out filled retaining wall according to claim 1, wherein: the water filtering retaining wall mold bag is sewn by geotextile.

7. The bag-type stacked run-out filled retaining wall according to claim 1, wherein: the mesh grid framework is composed of at least two layers of linear ribs (121), the linear ribs in the same layer are arranged in parallel, and the linear ribs in different layers are arranged in a staggered mode to form a crossed and through three-dimensional water guide channel.

8. The bag-type stacked run-out filled retaining wall according to claim 1, wherein: a plurality of temporary stand columns (4) are vertically fixed in the roadway on the inner side of the filling monomer, and the filling monomer is fixedly connected with the temporary stand columns through binding bands (5) wound on the water filtering retaining wall mold bags.

9. The bag-type stacked run-out filled retaining wall according to claim 8, wherein: the binding band is fixedly connected with the temporary upright post through ring buckles (51) fixed at the two ends of the binding band.

10. A method for constructing a bag-type stacked run-out filled retaining wall as claimed in any one of claims 1 to 9, comprising the steps of:

a. processing a filling monomer (1) according to the cross section area of a roadway (6) in a filling area;

b. stacking and paving the filling monomers in the roadway from bottom to top in sequence;

c. connecting the water outlet pipes (14) on each filling monomer in parallel to the water outlet pipe (2), and leading the water outlet pipe to a water outlet point;

d. filling the filling cavity (112) in the filling monomer with filling slurry (7) from bottom to top in sequence to form a filling retaining wall; and in the process of forming the filling retaining wall, filling the filling area of the height range of the retaining wall.

Technical Field

The invention relates to the technical field of mine solid waste filling, in particular to a bag type stacked drainage filling retaining wall and a construction method thereof.

Background

The cut-and-fill mining method is a mining method in which, in a room or a lump, a cut-and-fill material is fed into a goaf with the advancement of a stope face to perform ground pressure management, control of surrounding rock caving and surface movement, and stope extraction of the lump on or under the protection of the formed cut-and-fill. At present, the filling mining method is more and more widely used in metal and nonmetal mines.

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 entrance of a goaf of a stope to be filled to seal the goaf so as to prevent the problems of slurry leakage, slurry leakage and the like of goaf filling slurry. In order to meet the transportation requirement, the filling slurry has certain flowing performance, generally in a saturated state, and after the filling slurry enters a stope, a certain amount of free water exists among filling aggregate particles, but the existence of the water influences the strength performance, the setting time performance and the like of a filling body after the filling slurry is solidified. Therefore, this part should be discharged as quickly as possible. The prior method comprises the following steps: the water filter pipe is installed, the corrugated pipe or the common plastic pipe is adopted as the water filter pipe by the pipeline, and the filter cloth is externally applied to realize reverse filtration so as to achieve the purpose of quickly filtering water, but the diameter of the pipeline is small, the water filtering area is small, the water filtering influence radius is small, and the quantity of the pipelines to be arranged is large to achieve the effect.

The safety and reliability of the filling retaining wall are extremely important safety guarantee for underground workers, equipment and normal production. The existing filling retaining wall mainly comprises a brickwork retaining wall and a concrete retaining wall, the retaining wall has good integrity, good tightness and high strength and is adopted by a large number of mines, but the superior performances result in poor water filtering effect of the retaining wall, the design generally requires that the strength of a dam is achieved, the brickwork thickness is large, and the required strength is high.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a bag-type stacked drainage filling retaining wall capable of effectively improving the water filtering effect of a to-be-filled area and a construction method thereof.

The invention provides a bag-type stacked drainage filling retaining wall which comprises a plurality of filling single bodies which are sequentially stacked from bottom to top, wherein each filling single body comprises a water filtration retaining wall mold bag, a mesh grid framework, a water collecting pipe and a water outlet pipe, each water filtration retaining wall mold bag comprises a filling cavity and a water filtration cavity, the water filtration cavities are arranged towards a to-be-filled area, the mesh grid framework and the water collecting pipes are arranged in the water filtration cavities from top to bottom, a plurality of water collecting holes are uniformly distributed on the pipe walls of the water collecting pipes, the water outlet pipes are fixed at the bottoms of the water filtration retaining wall mold bags, inlets of the water outlet pipes penetrate through the filling cavities and are communicated with the interiors of the water filtration retaining walls, outlets of the water outlet pipes are communicated with the outer sides of the.

In order to facilitate the installation and positioning of the water outlet pipe, a first cuff for fixing the water outlet pipe is arranged at the bottom of the water filtering retaining wall mold bag.

For the installation location of convenient filling tube drainage barricade mould bag top is equipped with the second cuff that is used for fixed filling tube.

In order to facilitate quick assembly and disassembly, the water outlet pipes of the filling monomers are communicated with the outer side of the filling area through a water outlet pipe, and a quick connector which is quickly connected with the water outlet pipes is arranged on the water outlet pipe.

In order to accelerate the dehydration and solidification process of the filling slurry, a negative pressure drainage device is connected to the drainage pipe.

The water filtering retaining wall mold bag is sewn by geotextile.

The mesh grid framework is composed of at least two layers of linear ribs, the linear ribs in the same layer are arranged in parallel, and the linear ribs in different layers are arranged in a staggered mode to form a crossed and through three-dimensional water guide channel.

For preventing to fill the monomer and slide the aversion, vertically be fixed with a plurality of interim stands in filling the inboard tunnel of monomer, fill the monomer through twine bandage and interim stand fixed connection on drainage barricade mould bag.

In order to facilitate quick mounting and dismounting, the binding band is fixedly connected with the temporary upright post through the ring buckles fixed at the two ends of the binding band.

The invention relates to a construction method of a bag type stacked drainage filling retaining wall, which comprises the following steps:

a. processing a filling monomer according to the cross section area of the roadway in the filling area;

b. stacking and paving the filling monomers in the roadway from bottom to top in sequence;

c. connecting the water outlet pipes on the filling monomers in parallel to a water outlet pipe, and leading the water outlet pipe to a water outlet point;

d. filling slurry into the filling cavities in the filling monomers from bottom to top in sequence to form a filling retaining wall; and in the process of forming the filling retaining wall, filling the filling area of the height range of the retaining wall.

Compared with the prior art, the invention has the following advantages:

1. the water filtering retaining wall mold bag is divided into the filling cavity and the water filtering cavity, and the water filtering cavity is arranged towards the filling area, so that a full-section water filtering head-on surface is formed on the filling side, and the water filtering area can be effectively increased.

2. The water filtering cavity is integrally of a multi-layer surface-shaped structure by arranging the mesh grid framework in the water filtering cavity, and only water and solid aggregate penetrate through the water filtering retaining wall mold bag by utilizing the characteristic of the water filtering retaining wall mold bag; the mesh grid frameworks and the water catchment pipes are utilized to play roles of occupying space and supporting shape, so that filtered water can flow between the mesh grid frameworks and between the inside and the outside of the water catchment pipes in the water filtering cavity; and the filtered water is discharged out of the filling area through the water outlet pipe, so that a water seepage and pressure relief area is formed between the filling retaining wall and the filling area, and the water filtering potential energy is dissipated, so that the seepage potential energy of the filling slurry is reduced, the acting force of the filling slurry on the filling retaining wall is effectively reduced, the safety of the filling retaining wall is improved, the structural strength design requirement of the filling retaining wall is reduced, and the comprehensive filling cost is reduced.

3. The filling slurry is filled into the filling cavity to form the filling retaining wall, so that the mounting and construction are easy, the retaining wall is quickly constructed, the constructed filling retaining wall is used as a part of a filling area, and the construction allocation cost of the retaining wall is low.

Drawings

FIG. 1 is a schematic view of the structure of a filling monomer in the present invention.

Fig. 2 is an enlarged and reversed structure diagram at a-a in fig. 1.

Fig. 3 is an enlarged partial sectional view of the structure at B-B in fig. 1.

The labels shown in the figures and the corresponding component names are:

1. filling a monomer; 11. water filtering retaining wall mold bags; 12. a mesh grid framework; 13. a water collecting pipe; 14. a water outlet pipe; 15. a filling pipe; 111. a water filtering cavity; 112. filling the cavity; 113. a first cuff; 114. a second cuff; 121. linear ribs; 131. a water collection hole;

2. a drain pipe; 21. a quick coupling;

3. a negative pressure drainage device;

4. a temporary upright post;

5. binding bands; 51. looping;

6. a roadway;

7. and (4) filling the slurry.

Detailed Description

As can be seen from fig. 1 to 3, the bag type stacked drainage filling retaining wall of the present invention comprises a plurality of filling units 1, drainage pipes 2, negative pressure drainage devices 3, temporary columns 4 and binding bands 5,

each filling monomer 1 is sequentially stacked from bottom to top and is arranged in a roadway 6 of a region to be filled and a non-filling region, each filling monomer 1 comprises a water filtering retaining wall mold bag 11, a mesh grid framework 12, a water collecting pipe 13, a water outlet pipe 14 and a filling pipe 15, wherein the water filtering retaining wall mold bag 11 is formed by a plurality of geotextiles in a surrounding and sewing mode to form a water filtering cavity 111 and a filling cavity 112, the water filtering cavity 111 is arranged facing the region to be filled, a first cuff 113 is arranged at the bottom of the water filtering retaining wall mold bag 11, and a second cuff 114 is arranged at the top of the outer end face of the water filtering retaining wall mold bag 11; the mesh-shaped grid framework 12 is formed by fixedly connecting at least two layers of linear ribs 121 and is arranged in the water filtering cavity 111, the linear ribs 121 in the same layer in the mesh-shaped grid framework 12 are arranged in parallel, and the linear ribs 121 in different layers in the mesh-shaped grid framework 12 are arranged in a staggered manner to form a crossed and through mesh-shaped three-dimensional water guide channel; the water collecting pipe 13 is arranged in the water filtering cavity 111 below the mesh grid framework 12, and a plurality of water collecting holes 131 are uniformly distributed on the pipe wall of the water collecting pipe 13; the water outlet pipe 14 is tightly inserted into the first cuff 113, the inlet of the water outlet pipe 14 penetrates through the filling cavity 112 and is communicated with the inside of the water filtering cavity 111, and the outlet of the water outlet pipe 14 is communicated with the roadway 6 outside the filling area; the filling pipe 15 is tightly inserted into the second cuff 114, one end of the filling pipe 15 is communicated with the inside of the filling cavity 112 in the water-filtering retaining wall mold bag 11, and the other end is communicated with a stope filling system; filling slurry 7 in the filling system is filled in the filling cavity 112 through the filling pipe 15 to form a filling retaining wall;

the drain pipe 2 is arranged in the roadway 6 outside the filling area, and the water outlet pipes 14 on the filling single bodies 1 are mutually connected in parallel to the drain pipe 2;

the negative pressure drainage device 3 is arranged in a roadway 6 outside the filling area and is communicated with an outlet of the drainage pipe 2;

the temporary upright post 4 is vertically fixed in a roadway 6 at the inner side of the filling monomer 1;

the bandage 5 is along 6 axial reciprocal windings in the drainage barricade mould bag 11 of tunnel, and bandage 5 is tied up fixedly with interim stand 4 through the latch closure 51 of fixing at its both ends, and each fills monomer 1 and all accomplishes the axial positioning in the tunnel 6 through bandage 5 and interim stand 4 fixed connection that correspond.

As can be seen from fig. 1 and 2, the drain pipe 2 of the present invention is provided with a quick coupling 21 for quick connection with the water outlet pipe 14, and each filling unit 1 is connected with the drain pipe 2 through its own water outlet pipe 14 and quick coupling 21.

In the invention, the water-filtering retaining wall mold bag 11 can also be sewn by other water-permeable and solid aggregate-impermeable flexible film materials.

The invention relates to a construction method of a bag type stacked drainage filling retaining wall, which comprises the following steps:

a. processing a filling monomer 1 according to the cross sectional area of a roadway 6 in a filling area;

b. the filling monomers 1 are sequentially stacked and paved in the roadway 6 from bottom to top;

c. placing a drainage pipe 2 in a roadway 6 outside a filling area, connecting water outlet pipes 14 on each filling monomer 1 in parallel to the drainage pipe 2, and leading the drainage pipe 2 to a drainage point;

d. filling the filling cavity 112 of the filling monomer 1 with the filling slurry 7 in sequence from bottom to top to form a filling retaining wall; in the process of forming the filling retaining wall, the filling area of the height range surrounded by the retaining wall is filled synchronously, the filling progress is accelerated, and the mining and filling cycle period is shortened.

In the using process of the invention, the filling single body 1 does not need a complex supporting system, particularly does not need an inclined strut for supporting, and does not occupy the space of a reserved roadway at a filling retaining wall by the limiting and fixing action of the temporary upright post 4 and the binding band 5, so that the filling work and the production and the use of the roadway are not influenced mutually.