Tailing backfill retaining wall

Abstract

The utility model discloses a tailing backfill retaining wall which comprises a precast concrete pile seat, one end of the precast concrete pile seat is embedded into the bottom of a mountain, a precast concrete wall is embedded into the upper side of the precast concrete pile seat, and a precast concrete bearing plate is detachably connected between the precast concrete pile seat and the precast concrete wall. The prefabricated concrete walls are lifted to the positions above the prefabricated concrete pile bases, the upper grooves and the lower grooves are connected in an aligned and inserted mode, and so on until the multiple prefabricated concrete walls are arrayed and aligned, the prefabricated concrete walls are fast to assemble, the building efficiency is high, limiting plates are connected between the bent plates on the adjacent prefabricated concrete walls in a lap joint mode, and the construction efficiency is high. The limiting plates are embedded into the gaps between the bent plates and the prefabricated concrete walls in an interference mode, so that the adjacent prefabricated concrete walls cannot be staggered front and back, right-angle structures at the two ends of each limiting plate can prevent the prefabricated concrete walls from being separated left and right, the integrity of the tailing backfill retaining wall is guaranteed, and the multiple prefabricated concrete walls bear force together.

Description

Technical Field

[0001] The utility model relates to the technical field related to mine slope management, in particular to a tailings backfill retaining wall. Background Art

[0002] Tailings are a kind of product of sorting in the mineral processing process. They have a low content of useful target components and cannot be used in production. Tailings are potentially harmful. The initial tailings treatment is to store them in tailings ponds, which will not only occupy a large amount of land and destroy land resource allocation, but the mineral elements in the tailings will also cause harm to the surrounding natural environment and damage the soil. In addition, the tailings dam burst is also extremely harmful. Tailings backfill is to fill the treated tailings waste back into the goaf. It is a very effective way to reduce tailings, which can reduce the cost of tailings dams and protect the landform and environment. At present, the more common tailings backfill methods are full tailings cementation filling technology and high water consolidation full tailings filling technology;

[0003] Chinese patent publication number CN219840118U discloses a retaining wall for mine environmental restoration and management, which can be installed on the retaining wall body by using the supporting plate, rotating ring, reinforcing cylinder, supporting rod and mounting baffle in combination, and can use the mounting hole and mounting screw to install the mounting baffle on the retaining wall body, and can adjust the supporting point of the retaining wall body according to the height of the retaining wall body by adjusting the length of the reinforcing cylinder and the supporting rod, thereby increasing the supporting force of the retaining wall body, and thus reinforcing the retaining wall body, preventing the retaining wall body from overturning after use, and improving the stability of the retaining wall body when in use, and has the advantages of more convenient fixing operation of the retaining wall body and higher stability, thereby ensuring the safety of the retaining wall body when in use;

[0004] The assembly process of the above technology is cumbersome and is only applicable to temporary support of mine slopes. It has limited load-bearing capacity and is not suitable for heavy support scenarios such as tailings backfilling. Therefore, the utility model discloses a tailings backfill retaining wall for solving the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a tailings backfill retaining wall to solve the problem that the traditional mine retaining wall proposed in the above background technology has a cumbersome assembly process, is only suitable for temporary support of mine slopes, has limited bearing capacity, and is not suitable for heavy support scenarios such as tailings backfill.

[0006] To achieve the above purpose, the utility model solves the above technical problems as follows:

[0007] A tailings backfill retaining wall comprises a precast concrete pile seat, one end of the precast concrete pile seat is embedded in the bottom of a mountain, a precast concrete wall is embedded on the upper side of the precast concrete pile seat, a precast concrete bearing plate is detachably connected between the precast concrete pile seat and the precast concrete wall, wherein a plurality of piles are embedded at the bottom of the precast concrete pile seat and at the rear side of the precast concrete wall, a plurality of anchor rods are equidistantly embedded on the precast concrete pile seat and at the front side of the precast concrete wall, and a plurality of connecting components are connected between adjacent precast concrete walls.

[0008] As a further solution of the utility model, a lower groove is provided on the upper side of the precast concrete pile seat, and a corresponding upper groove is provided on the precast concrete wall corresponding to the lower groove, and the depth of the upper groove is twice the depth of the lower groove.

[0009] As a further solution of the utility model, the same number of through holes are provided between the upper and lower side walls of the precast concrete pile seat corresponding to the inserted piles and the anchor rods.

[0010] As a further solution of the utility model, two clamping plates are fixed to the rear side of the precast concrete wall, both of the two clamping plates are in an "L"-shaped structure, and a "T"-shaped structure is formed between the two clamping plates.

[0011] As a further solution of the utility model, the precast concrete bearing plate is in a right-angled triangle structure, and a plug plate is fixedly connected to a right-angled side of the precast concrete bearing plate, and the plug plate is adapted to the "T"-shaped structure.

[0012] As a further solution of the utility model, the connection assembly includes a bent plate fixed on the rear side of the precast concrete wall, and a limiting plate is overlapped between the bent plates on adjacent precast concrete walls, and the limiting plate has a "concave"-shaped structure.

[0013] As a further solution of the utility model, a plurality of water permeable holes are provided at the lower part of the precast concrete wall.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The tailings backfill retaining wall lifts the precast concrete wall above the precast concrete pile seat so that the upper groove is aligned with the lower groove, and so on, until multiple precast concrete walls are aligned. The precast concrete wall is quick to assemble and has high construction efficiency. The limit plates are overlapped between the curved plates on adjacent precast concrete walls, and the limit plates are inserted into the gap between the curved plates and the precast concrete walls by interference fit, so that the adjacent precast concrete walls will not be misaligned front and back. The right-angle structures at both ends of the limit plates can prevent the precast concrete walls from being separated from each other, thereby ensuring the integrity of the tailings backfill retaining wall. Multiple precast concrete walls bear the load together, the structure is firm, and the construction is fast. It can be used as a long-term support structure for the tailings slope;

[0016] 2. The tailings backfill retaining wall is constructed by inserting the plug plate on one side of the precast concrete bearing plate into the "T"-shaped structure between the clamping plates until the right-angle side of the precast concrete bearing plate away from the plug plate fits the precast concrete pile seat. The precast concrete bearing plate can transmit the stress of the precast concrete wall to the precast concrete pile seat, so that the precast concrete wall can stably support the tailings slope;

[0017] 3. The tailings backfill retaining wall is constructed by drilling multiple parallel pile holes at the bottom of the mountain. After the precast concrete pile seats are placed in the pile holes, the piles are hammered and wedged into the exposed through holes to locate the position of the precast concrete pile seats and prevent them from being easily displaced. With the located precast concrete pile seats as a reference, column holes are drilled from top to bottom at the bottom of the mountain, and anchor rods are wedged into the column holes so that the anchor rods can be embedded in the through holes in the mountain, which can fully support the bottom of the mountain and prevent landslides. The precast concrete pile seats bear the mountain load, which strengthens the grip of the precast concrete pile seats, greatly enhances the load capacity of the precast concrete wall, and ensures the structural stability of the tailings backfill mountain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a side sectional view of a tailings backfill retaining wall of the utility model;

[0020] Figure 2 This is a back structural diagram of a precast concrete wall in a tailings backfill retaining wall of the utility model;

[0021] Figure 3 This is a front structural diagram of a prefabricated concrete wall connection structure in a tailings backfill retaining wall of the utility model;

[0022] Figure 4 This is a top view structural diagram of a precast concrete wall connection structure in a tailings backfill retaining wall of the utility model;

[0023] Figure 5This is a front structural diagram of a precast concrete wall in a tailings backfill retaining wall of the utility model;

[0024] Figure 6 The utility model is a top view of the structure of a precast concrete pile seat in a tailings backfill retaining wall.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Precast concrete pile seat; 11. Lower groove; 12. Through hole; 2. Precast concrete wall; 21. Upper groove; 22. Water-permeable hole; 23. Clamp; 3. Precast concrete bearing plate; 31. Insert plate; 4. Insert pile; 5. Anchor rod; 6. Connection assembly; 61. Bend plate; 62. Limit plate. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the embodiments.

[0028] like Figure 1 The utility model provides a tailings backfill retaining wall, comprising a precast concrete pile seat 1, one end of which is embedded in the bottom of the mountain;

[0029] Specifically, a plurality of pile holes parallel to each other are excavated at the bottom of the mountain, and then the precast concrete pile seat 1 is placed in the pile holes. The precast concrete pile seat 1 bears the mountain load, which strengthens the grip of the precast concrete pile seat 1. On the other hand, the precast concrete pile seat 1 can be placed directly on flat ground. After the tailings backfill retaining wall is built, the tailings can be piled on the side opposite to the front of the retaining wall to form a tailings slope.

[0030] like Figure 6 Further, a precast concrete wall 2 is embedded on the upper side of the precast concrete pile seat 1, a lower groove 11 is opened on the upper side of the precast concrete pile seat 1, and a corresponding upper groove 21 is opened on the precast concrete wall 2 corresponding to the lower groove 11, and the depth of the upper groove 21 is twice the depth of the lower groove 11;

[0031] like Figure 5 Specifically, the precast concrete wall 2 is lifted above the precast concrete pile seat 1 so that the upper groove 21 is aligned with the lower groove 11, and so on, until a plurality of precast concrete walls 2 are aligned. The precast concrete wall 2 is assembled quickly and has high construction efficiency.

[0032] Furthermore, the lower part of the precast concrete wall 2 is provided with a plurality of water-permeable holes 22;

[0033] Specifically, the water permeable holes 22 can discharge the rainwater accumulated in the tailings slope to prevent the tailings slope from being too heavy and causing the risk of landslide.

[0034] like Figure 2 , further, a precast concrete bearing plate 3 is detachably connected between the precast concrete pile seat 1 and the precast concrete wall 2, two clamping plates 23 are fixed to the rear side of the precast concrete wall 2, the two clamping plates 23 are both in an "L"-shaped structure, and a "T"-shaped structure is formed between the two clamping plates 23, the precast concrete bearing plate 3 is in a right-angled triangle structure, and a plug plate 31 is fixedly connected to a right-angled side of the precast concrete bearing plate 3, and the plug plate 31 is adapted to the "T"-shaped structure;

[0035] Specifically, the precast concrete bearing plate 3 of the right-angled triangle structure has high stability. The plug plate 31 on one side of the precast concrete bearing plate 3 is embedded in the "T"-shaped structure between the clamps 23 until the right-angle side of the precast concrete bearing plate 3 away from the plug plate 31 fits the precast concrete pile seat 1. The precast concrete bearing plate 3 can transmit the stress of the precast concrete wall 2 to the precast concrete pile seat 1, so that the precast concrete wall 2 can stably support the tailings slope.

[0036] Furthermore, a plurality of piles 4 are embedded at the bottom of the precast concrete pile seat 1 and at the rear side of the precast concrete wall 2, a plurality of anchor rods 5 are equidistantly embedded on the precast concrete pile seat 1 and at the front side of the precast concrete wall 2, and the same number of through holes 12 are provided between the upper and lower side walls of the precast concrete pile seat 1 corresponding to the piles 4 and the anchor rods 5;

[0037] Specifically, during construction, the through hole 12 must be located on the straight line where the precast concrete pile seat 1 is located. The drilling position of the column hole can be calculated based on the spacing between the through holes 12. The column hole is drilled at the drilling position, and the anchor rod 5 is wedged into the column hole, so that the anchor rod 5 can be embedded in the through hole 12 in the mountain, which can fully support the bottom of the mountain and prevent landslides. The precast concrete pile seat 1 bears the mountain load, which strengthens the grip of the precast concrete pile seat 1.

[0038] like Figure 4 and 5 Furthermore, a plurality of connection components 6 are connected between adjacent precast concrete walls 2, and the connection components 6 include a bent plate 61 fixed to the rear side of the precast concrete wall 2, and a limit plate 62 is overlapped between the bent plates 61 on the adjacent precast concrete walls 2, and the limit plate 62 is in a "concave" shape;

[0039] Specifically, the limit plates 62 are overlapped between the bent plates 61 on adjacent precast concrete walls 2, and the limit plates 62 are interference fit into the gap between the bent plates 61 and the precast concrete walls 2, so that the adjacent precast concrete walls 2 will not be misaligned front to back. The right-angle structures at both ends of the limit plates 62 can prevent the precast concrete walls 2 from separating left to right, thereby ensuring the integrity of the tailings backfill retaining wall.

[0040] The construction steps of the tailings backfill retaining wall are as follows:

[0041] The steps include:

[0042] Step 1: excavate a plurality of pile holes parallel to each other at the bottom of the mountain, place the precast concrete pile seat 1 into the pile hole, and then hammer the pile 4 into the exposed through hole 12 to locate the position of the precast concrete pile seat 1 and prevent the precast concrete pile seat 1 from being easily displaced;

[0043] Step 2: Taking the positioned precast concrete pile seat 1 as a reference, a column hole is drilled from top to bottom at the bottom of the mountain, and an anchor rod 5 is wedged into the column hole, so that the anchor rod 5 can be embedded in the through hole 12 in the mountain, which can fully support the bottom of the mountain and prevent landslides. The precast concrete pile seat 1 bears the mountain load, which strengthens the grip of the precast concrete pile seat 1;

[0044] Step 3: lift the precast concrete wall 2 to the top of the precast concrete pile seat 1, so that the upper groove 21 is aligned with the lower groove 11, and so on, until a plurality of precast concrete walls 2 are aligned, and the precast concrete wall 2 is assembled quickly and efficiently;

[0045] Step 4: insert the plug plate 31 on one side of the precast concrete bearing plate 3 into the "T"-shaped structure between the clamping plates 23 until the right-angled side of the precast concrete bearing plate 3 away from the plug plate 31 fits the precast concrete pile seat 1. The precast concrete bearing plate 3 can transmit the stress of the precast concrete wall 2 to the precast concrete pile seat 1, so that the precast concrete wall 2 can stably support the tailings slope;

[0046] Step 5: overlap the limit plates 62 between the bent plates 61 on the adjacent precast concrete walls 2, and the limit plates 62 are inserted into the gap between the bent plates 61 and the precast concrete walls 2 so that the adjacent precast concrete walls 2 will not be misaligned front to back. The right-angle structures at both ends of the limit plates 62 can prevent the precast concrete walls 2 from separating left and right, thereby ensuring the integrity of the tailings backfill retaining wall.

Claims

1. A tailings backfill retaining wall, comprising a precast concrete pile seat (1), characterized in that: One end of the precast concrete pile seat (1) is embedded in the bottom of the mountain, a precast concrete wall (2) is embedded on the upper side of the precast concrete pile seat (1), and a precast concrete bearing plate (3) is detachably connected between the precast concrete pile seat (1) and the precast concrete wall (2), wherein a plurality of piles (4) are embedded at the bottom of the precast concrete pile seat (1) and at the rear side of the precast concrete wall (2), a plurality of anchor rods (5) are embedded at equal intervals on the precast concrete pile seat (1) and at the front side of the precast concrete wall (2), and a plurality of connection components (6) are connected between adjacent precast concrete walls (2).

2. A tailings backfill retaining wall according to claim 1, characterized in that: A lower groove (11) is provided on the upper side of the precast concrete pile seat (1), and a corresponding upper groove (21) is provided on the precast concrete wall (2) corresponding to the lower groove (11), and the depth of the upper groove (21) is twice the depth of the lower groove (11).

3. The tailings backfill retaining wall according to claim 1, characterized in that: The same number of through holes (12) are provided between the upper and lower side walls of the precast concrete pile seat (1) corresponding to the inserted piles (4) and the anchor rods (5).

4. The tailings backfill retaining wall according to claim 1, characterized in that: Two clamping plates (23) are fixed to the rear side of the precast concrete wall (2), the two clamping plates (23) are both in an "L"-shaped structure, and a "T"-shaped structure is formed between the two clamping plates (23).

5. The tailings backfill retaining wall according to claim 4, characterized in that: The precast concrete bearing plate (3) is in a right-angled triangle structure, and a plug plate (31) is fixedly connected to one right-angled side of the precast concrete bearing plate (3), and the plug plate (31) is adapted to the "T"-shaped structure.

6. The tailings backfill retaining wall according to claim 1, characterized in that: The connection assembly (6) comprises a bent plate (61) fixed to the rear side of the precast concrete wall (2), and a limiting plate (62) is overlapped between the bent plates (61) on adjacent precast concrete walls (2), wherein the limiting plate (62) is in a "concave"-shaped structure.

7. The tailings backfill retaining wall according to claim 1, characterized in that: The lower part of the precast concrete wall (2) is provided with a plurality of water-permeable holes (22).

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