Waste tire-geogrid combined tenon anchorage type reinforced building solid waste retaining wall

Abstract

The invention discloses a waste tire-geogrid combined tenon anchorage type reinforced building solid waste retaining wall which comprises a foundation, a wall panel is fixedly connected to the foundation, the space between the foundation and the wall panel is filled with building solid waste, a plurality of layers of geogrids I and geogrids II are embedded in the building solid waste, and the geogrids I and the geogrids II are embedded in the wall panel. The first geogrid and the second geogrid are both fixedly connected with the wall panel, a plurality of first tires and second tires are fixedly connected to the second geogrid, and the first geogrid and the second geogrid are the same in specification. The interaction between the first geogrid and the building solid waste and the interaction between the second geogrid and the building solid waste are enhanced, the drawing resistance of the rib material can be greatly improved, and the situation that the retaining wall is damaged due to the fact that the rib material is pulled out is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of road engineering, in particular to a waste tire-geogrid combined mortise and tenon anchoring type reinforced building solid waste retaining wall. Background Art

[0002] According to statistics from the National Bureau of Statistics, the cumulative production of rubber tire outer tires in my country reached 988 million in 2023, the highest in the past six years. Tires are a component of vehicles that are constantly worn and replaced, which leads to a large number of waste tires every year. According to statistics, my country produces about 330 million waste tires each year, equivalent to about 13 million tons of weight, ranking first in the world, and growing at a rate of 6%-8% each year. How to deal with the huge number of waste tires has become a topic of concern.

[0003] The annual output of construction solid waste in my country's large and medium-sized cities exceeds 2 billion tons. The resource utilization rate of construction solid waste in developed countries is as high as 90%, while that in my country is less than 10%. At present, my country's treatment of construction solid waste is relatively backward, mainly using landfill, which not only causes environmental pollution, but also wastes precious resources.

[0004] Reinforced earth retaining walls are made by adding reinforcements to the soil, and using the friction between the reinforcements and the soil to improve the deformation conditions of the soil and enhance the engineering characteristics of the soil, thereby achieving the purpose of stabilizing the soil. Based on the stability of reinforced earth retaining walls, the failure modes of reinforced earth retaining walls can be divided into overall stability failure and internal stability failure. Overall stability failure occurs outside the retaining wall, including sliding, overturning and rotation of the retaining wall base, and sinking together with the foundation. Internal stability failure occurs inside the retaining wall, including breaking of reinforcements, pulling out of reinforcements, and breaking of connectors.

[0005] At present, geosynthetics generally have high strength and low elongation, and the reinforcement is difficult to be broken. However, how to better combine the reinforcement and soil into a whole has become a weak link that limits the interaction between the reinforcement and the soil.

[0006] Therefore, a waste tire-geogrid combined mortise and tenon anchored reinforced building solid waste retaining wall is proposed to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a waste tire-geogrid combined mortise and tenon anchored reinforced building solid waste retaining wall to solve the problems existing in the above-mentioned prior art, effectively improve the interaction between reinforcement and soil, thereby improving the stability of the reinforced soil retaining wall, reducing its deformation, and realizing the resource utilization of building solid waste and waste tires.

[0008] To achieve the above object, the present invention provides the following solution: The present invention provides a waste tire-geogrid combined tenon anchoring type reinforced building solid waste retaining wall, comprising:

[0009] A foundation, a wall panel is fixedly connected to the foundation, construction solid waste is filled between the foundation and the wall panel, a plurality of layers of geogrid 1 and geogrid 2 are buried in the construction solid waste, the geogrid 1 and the geogrid 2 are both fixedly connected to the wall panel, a plurality of tires 1 and tires 2 are arranged on the geogrid 2, and the geogrid 1 and the geogrid 2 have the same size.

[0010] Preferably, the second tire is provided with a plurality of through holes.

[0011] Preferably, the geogrid 2 is provided with a return bag 1 and a return bag 2, the tire 1 is located in the return bag 1, the tire 2 is located in the return bag 2, the tire 2 is fixedly connected to the return bag 2 by a geotie, the geotie is fixedly connected to the geogrid 2 after passing through the through hole, and the left side of the return bag 2 that overlaps with the geogrid 2 is fixedly connected by a connecting rod.

[0012] A construction method for a waste tire-geogrid combined tenon-anchored reinforced building solid waste retaining wall comprises the following steps:

[0013] Step 1: Construction solid waste production: Construction solid waste mainly composed of waste bricks, waste mortar and waste concrete blocks generated during local engineering construction. After mechanical crushing, the maximum particle size should not exceed the mesh size of geogrid 1 and geogrid 2 and should not have sharp edges and corners, so as to meet the filling requirements;

[0014] Step 2: Cutting of tire 1 and tire 2: Common automobile tires are used, with tire 1 used as the tenon and tire 2 used as the anchor. The tire walls of one side of tire 1 and tire 2 are cut off, and a through hole is opened on the retained tire wall of tire 2. The size of the through hole is preferably suitable for passing the geotextile tie through.

[0015] Step 3. Procurement requirements for geogrid 1, geogrid 2, connecting rods, wall panels and geoties: geogrid 1 and geogrid 2 use easily foldable warp knitted geogrids, wall panels use modular panels, the tensile strength of geoties should not be less than 80% of the grid strength, the connection strength should not be less than 90% of the grid strength, the connecting rods should have sufficient tensile strength and shear resistance to withstand the tension and gravity loads during construction to ensure the stability of the geogrid, and the diameter and length of the connecting rods should match the mesh size of geogrid 2 to ensure that the installation is firm and not easy to loosen;

[0016] Step 4: Carry out earth excavation, site leveling, foundation construction and preparation of the drainage system at the rear edge of the wall;

[0017] Step 5: The wall panels and backfill are filled in layers:

[0018] According to relevant specifications, the vertical distance from the first layer of reinforcement to the foundation should not exceed 60cm, and the vertical spacing between each layer of reinforcement should be 30cm to 60cm;

[0019] When filling the first layer, first splice the wall panels to a height higher than the first layer of reinforcement, temporarily fix the wall panels, then fill in the construction solid waste, and use a rammer to compact and level it to the height of the first layer of reinforcement. When the compaction reaches 95%, lay the geogrid 1, connect the wall panels and geogrid 1 through the connecting rod, and the first layer is completed.

[0020] Step 6: Continue to splice the wall panels, fill in the construction solid waste, and compact and level the construction solid waste to the height of the next layer of reinforcement material;

[0021] Step 7: Place tire 1 at the position of return bag 1, fill tire 1 with construction solid waste and compact it, place tire 2 in return bag 2, fill tire 2 with construction solid waste after laying, and compact it, connect the overlapped part of the left side of return bag 2 with geogrid 2 with connecting rod, lay the geogrid on the left side of tire 1 to the wall panel and fix it, finally spread the construction solid waste on geogrid 2 and compact it, and complete the filling of this layer;

[0022] Step 8: For the reinforcement layer composed of geogrid 2 and tire 2, repeat the construction according to step 7;

[0023] Step nine: Carry out the construction of capstone and drainage ancillary works.

[0024] Preferably, in step five and step seven, the compaction degree of the construction solid waste is not less than 95%.

[0025] Preferably, according to the rupture surface obtained by theoretical calculation, the positions of the tire one and the tire two should be located in the soil on the right side of the rupture surface in the stable filling area.

[0026] Preferably, the connection length between the return bag 2 and the geogrid 2 overlapping on the left side should not be less than the radius of the tire 2.

[0027] Preferably, the net distance between the tire 1 and the tire 2 is not less than the diameter of the tire 1 used. The present invention discloses the following technical effects:

[0028] (1) This structure enhances the interaction between geogrid 1 and geogrid 2 and construction solid waste, which can greatly improve the tensile strength of the reinforcement and avoid damage to the retaining wall caused by the reinforcement being pulled out.

[0029] (2) Make full use of the material properties of high-strength geogrid 1 and geogrid 2 to avoid waste.

[0030] (3) Waste tires are solid wastes. Large amounts of them are prone to fire and occupy land resources. This can provide a new way for the pollution-free recycling of waste tires, turning waste tires into treasure.

[0031] (4) Low cost, convenient construction, can be made on site and has obvious effect.

[0032] (5) Using geotextiles to tie waste tires and geogrids can enhance the integrity of the device.

[0033] (6) One side of the waste tire is cut to facilitate the filling and compaction of the filler.

[0034] (7) The geogrids at the ends of the return bag that overlap are connected with connecting rods so that the geogrid return bag used as the tire of the anchor forms a closed shape to enhance the anchoring effect.

[0035] (8) Using construction solid waste as filler can not only reduce the cost of materials, but also achieve waste recycling, which is of great significance for saving energy and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 For tire one;

[0038] Figure 2 For tire two;

[0039] Figure 3 For connecting rod;

[0040] Figure 4 For geotextile tie;

[0041] Figure 5 For geogrid one;

[0042] Figure 6 For geogrid 2;

[0043] Figure 7 It is a side view of the combination of geogrid 2, tire 1 and tire 2;

[0044] Figure 8 This is a schematic diagram of a waste tire-geogrid tenon-anchor reinforced building solid waste retaining wall; DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Reference Figure 8 The present invention provides a waste tire-geogrid combined tenon anchoring type reinforced building solid waste retaining wall, comprising:

[0048] A foundation 12 is provided, on which a wall panel 1 is fixedly connected. Construction solid waste 3 is filled between the foundation 12 and the wall panel 1. A plurality of layers of geogrids 1 2 and geogrids 2 13 are buried in the construction solid waste 3. The geogrids 1 2 and geogrids 2 13 are both fixedly connected to the wall panel 1. The geogrids 2 13 are provided with a plurality of tires 1 5 and tires 2 6. The specifications of the geogrids 1 2 and geogrids 2 13 are the same.

[0049] According to a further optimized solution, a plurality of through holes 11 are provided on the tire 2 6 .

[0050] A further optimized solution is that a return bag 14 and a return bag 2 15 are provided on the geogrid 13, the tire 15 is located in the return bag 14, the tire 2 6 is located in the return bag 2 15, the tire 2 6 and the return bag 2 15 are fixedly connected by a geotie 8, the geotie 8 passes through the through hole 11 and is connected to the geogrid 13, and the return bag 2 15 and the geogrid 13 are fixedly connected by a connecting rod 7.

[0051] A construction method for a waste tire-geogrid combined tenon-anchored reinforced building solid waste retaining wall comprises the following steps:

[0052] Step 1: Production of construction solid waste 3: Construction solid waste 3, which is mainly composed of waste bricks and tiles, waste mortar, and waste concrete blocks generated during local engineering construction, is mechanically crushed to a maximum particle size that should not exceed the mesh size of geogrid 1 2 and geogrid 2 13 and should not have sharp edges and corners, so as to meet the filling requirements;

[0053] Step 2, cutting of tire 1 5 and tire 2 6: using common automobile tires, tire 1 5 is used as a tenon, and tire 2 6 is used as an anchor, and the sidewalls of tire 1 5 and tire 2 6 are cut off, and a through hole 11 is opened on the sidewall of tire 2 6, and the size of the through hole 11 is preferably to facilitate the passage of the geotextile tie 8;

[0054] Step 3. Procurement requirements for geogrid 1 2, geogrid 2 13, connecting rod 7, wall panel 1 and geotie 8:

[0055] Geogrid 1 2 and geogrid 2 13 use easily foldable warp knitted geogrids, wall panel 1 uses modular panels, geogrid tie 8 tensile strength is not less than 80% of the grid strength, connection strength is not less than 90% of the grid strength, connecting rod 7 should have sufficient tensile strength and shear resistance to withstand the tension and gravity loads during construction to ensure the stability of the geogrid, the diameter and length of the connecting rod should match the mesh size of geogrid 2 13 to ensure that the installation is firm and not easy to loosen;

[0056] Step 4: Carry out earth excavation, site leveling, foundation 12 construction and wall rear edge drainage system installation;

[0057] Step 5: Wall panel 1 and wall backfill are filled in layers:

[0058] The vertical distance from the first layer of reinforcement to the foundation should not exceed 60cm, and the vertical spacing between each layer of reinforcement should be 30cm to 60cm;

[0059] When filling the first layer, first splice the wall panel 1 to a height higher than the height of the first layer of reinforcement, and temporarily fix the wall panel, then fill in the construction solid waste 3, and use a tamping machine to compact and level it to the height of the first layer of reinforcement. When the compaction reaches 95%, lay the geogrid 1 2, and the wall panel 1 is fixedly connected to the geogrid 1 2, and the first layer filling is completed;

[0060] Step 6: Continue to splice the wall panels 1, fill in the construction solid waste 3, and compact and level the construction solid waste 3 to the height of the next layer of reinforcement material;

[0061] Step 7, place tire 1 5 at the position of return bag 1 14, fill tire 1 5 with construction solid waste 3 and compact it, put tire 2 6 into return bag 2 15, after laying, fill tire 2 6 with construction solid waste 3 and compact it, connect the part of the left side of return bag 2 15 overlapping with geogrid 2 13 with connecting rod 7, lay the geogrid on the left side of tire 1 5 to the wall panel 1 and fix it to the wall panel 1, finally, spread the construction solid waste on geogrid 2 13 and compact it, and complete the filling of this layer;

[0062] Step 8: For the reinforcement layer using the geogrid 13 and the tire 6, repeat the construction according to step 7;

[0063] Step nine: Carry out the construction of capstone and drainage ancillary works.

[0064] To further optimize the solution, in step five and step seven, the compaction degree of the construction solid waste 3 is not less than 95%.

[0065] To further optimize the solution, based on theoretical calculations, the positions of the rupture surface 4, tire one 5 and tire two 6 should be located in the soil on the right side of the rupture surface 4 in the stable filling area.

[0066] To further optimize the solution, the connection length between the return package 15 and the overlapping geogrid 13 on the left side should not be less than the radius of the tire 6.

[0067] According to a further optimization scheme, the net distance between tire 1 5 and tire 2 6 is not less than the diameter of tire 1 5 used.

[0068] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A waste tire-geogrid combined tenon anchor type reinforced building solid waste retaining wall, characterized in that: include: A foundation (12), a wall panel (1) is fixedly connected to the foundation (12), construction solid waste (3) is filled between the foundation (12) and the wall panel (1), a plurality of geogrids (1) and geogrids (13) are embedded in the construction solid waste (3), the geogrids (1) and geogrids (1) are both fixedly connected to the wall panel (1), a plurality of tyres (1) and tyres (6) are arranged on the geogrids (1) and the geogrids (1) and (2) are of the same size.

2. The waste tire-geogrid combined tenon-anchored reinforced building solid waste retaining wall according to claim 1, characterized in that: The second tire (6) is provided with a plurality of through holes (11).

3. The waste tire-geogrid combined tenon-anchored reinforced building solid waste retaining wall according to claim 2, characterized in that: The geogrid No. 2 (13) is provided with a return bag No. 1 (14) and a return bag No. 2 (15); the tire No. 1 (2) is located in the return bag No. 1 (14); the tire No. 2 (6) is located in the return bag No. 2 (15); the tire No. 2 (6) and the return bag No. 2 (15) are fixedly connected via a geotextile tie (8); the geotextile tie (8) passes through the through hole (11) and is fixedly connected to the geogrid No. 2 (13); the left side of the return bag No. 2 (15) that overlaps with the geogrid No. 2 (13) is fixedly connected via a connecting rod (7).

4. A construction method for a waste tire-geogrid combined mortise anchored reinforced building solid waste retaining wall, based on the waste tire-geogrid combined mortise anchored reinforced building solid waste retaining wall according to claim 3, characterized in that: The steps include: Step 1: Preparation of construction solid waste (3): Construction solid waste (3) mainly composed of waste bricks, waste mortar and waste concrete blocks generated during local engineering construction is mechanically crushed to a maximum particle size not exceeding the mesh size of geogrid 1 (2) and geogrid 2 (13) and without sharp edges and corners, so as to meet the filling requirements; Step 2, cutting of tire 1 (5) and tire 2 (6): using common automobile tires, with tire 1 (5) used as a tenon and tire 2 (6) used as an anchor, removing the tire wall of one side of tire 1 (5) and tire 2 (6), and opening a through hole (11) on the retained tire wall of tire 2 (6), the size of the through hole (11) being suitable for conveniently passing the geotextile tie (8); Step 3. Procurement requirements for geogrid 1 (2), geogrid 2 (13), connecting rod (7), wall panel (1) and geotie (8): geogrid 1 (2) and geogrid 2 (13) should use easily foldable warp knitted geogrids, the wall panel (1) should use modular panels, the tensile strength of geotie (8) should not be less than 80% of the strength of the geogrid, the connection strength should not be less than 90% of the strength of the geogrid, the connecting rod (7) should have sufficient tensile strength and shear resistance to withstand the tension and gravity loads during construction to ensure the stability of the geogrid, and the diameter and length of the connecting rod should match the mesh size of geogrid 2 (13) to ensure that the installation is firm and not easy to loosen; Step 4: Carry out earth excavation, site leveling, foundation (12) construction and preparation of the drainage system at the rear edge of the wall; Step 5: The wall panels (1) and the backfill are filled in layers: The vertical distance from the first layer of reinforcement to the foundation should not exceed 60cm, and the vertical spacing between each layer of reinforcement should be 30cm to 60cm; When filling the first layer, the wall panel (1) is first spliced ​​to a height higher than the height of the first layer of reinforcement material, the wall panel is temporarily fixed, and then the construction solid waste (3) is filled in, and compacted and leveled to the height of the first layer of reinforcement material with a tamping machine. When the compaction degree reaches 95%, the geogrid (2) is laid, and the wall panel (1) and the geogrid (2) are connected by a connecting rod (7), and the filling of the first layer is completed; Step 6: Continue to splice the wall panels (1), fill in the construction solid waste (3), and compact and level the construction solid waste (3) to the height of the next layer of reinforcement material; Step 7, placing tire 1 (5) at the position of return bag 1 (14), filling tire 1 (5) with construction solid waste (3) and compacting it, placing tire 2 (6) into return bag 2 (15), after laying, filling the interior of tire 2 (6) with construction solid waste (3) and compacting it, connecting the overlapping part of the left side of return bag 2 (15) and geogrid 2 (13) with connecting rod (7), laying the geogrid on the left side of tire 1 (5) to the wall panel (1) and fixing it, finally spreading the construction solid waste (3) on geogrid 2 (13) and compacting it, completing the filling of this layer; Step 8: For the reinforcement layer composed of the second geogrid (13) and the second tire (6), repeat the construction according to step 7; Step nine: Carry out the construction of capstone and drainage ancillary works.

5. The construction method of a waste tire-geogrid combined tenon anchoring reinforced building solid waste retaining wall according to claim 4, characterized in that: In step 5 and step 7, the compaction degree of the construction solid waste (3) is not less than 95%.

6. The construction method of a waste tire-geogrid combined tenon anchoring reinforced building solid waste retaining wall according to claim 4, characterized in that: According to the rupture surface (4) obtained by theoretical calculation, the positions of the tire one (5) and the tire two (6) should be located in the soil on the right side of the rupture surface (4) in the stable filling area.

7. The construction method of a waste tire-geogrid combined tenon anchoring reinforced building solid waste retaining wall according to claim 4, characterized in that: The connection length between the return bag 2 (15) and the geogrid 2 (13) overlapping on the left side should not be less than the radius of the tire 2 (6).

8. The construction method of a waste tire-geogrid combined tenon-anchored reinforced building solid waste retaining wall according to claim 4, characterized in that: The net distance between the tire one (5) and the tire two (6) is not less than the diameter of the tire one (5) in use.

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