A waste tire protection wall for a fluidized solidified soil embankment and a construction method thereof

Abstract

The application discloses a waste tire protection wall for a fluid solidified soil embankment and a construction method, and belongs to the technical field of fluid solidified soil building structures. The protection wall is composed of a plurality of waste tire protection wall units, and the waste tire protection unit comprises a waste tire, a reinforcing steel bar and a fastener. The plurality of waste tire protection wall units are connected by tangential alignment in the horizontal direction and are superposed by coincidence in the vertical direction to form a waste tire protection wall structure. During pouring, the fluid solidified soil is fully cemented with the inner wall of the tire, which significantly reduces the shrinkage gap generated between the fluid solidified soil and the protection wall during the hardening process of the fluid solidified soil, and improves the stability of the embankment. The protection wall structure is simple, has the advantages of light self-weight, corrosion resistance, low cost and environmental friendliness, and the construction method is simple, saves labor and time cost, and is convenient for popularization and application.

Description

Technical Field

[0001] This invention relates to the field of fluidized solidified soil building structure technology, and more specifically, to a waste tire protective wall for fluidized solidified soil embankments and a construction method thereof. Background Technology

[0002] In the current construction of fluidized solidified soil filling projects, there are two main conventional methods for constructing protective walls: one is to construct the protective wall using reinforced concrete, and the other is to construct the protective wall using precast concrete panels.

[0003] Protective walls constructed using conventional methods suffer from poor overall stability due to their heavy weight, poor corrosion resistance, and significant differences from the subgrade materials. This leads to differential settlement and compromises project quality. Furthermore, these conventional methods are characterized by long construction periods, susceptibility to environmental factors, and high costs. In addition, fluidized solidified soil exhibits slow initial strength gain, and its low thermal conductivity hinders the timely dissipation of heat generated during hydration. This results in a rapid temperature increase and volume expansion, leading to internal thermal stress during cooling. This stress can cause shrinkage gaps between the solidified soil and the rigid protective wall, ultimately causing structural defects.

[0004] Therefore, there is a need to develop a waste tire protective wall and construction method for fluidized solidified soil embankments. Summary of the Invention

[0005] The technical problem to be solved by the present invention is the defect in the prior art. Specifically, the present invention provides a waste tire protective wall for fluidized solidified soil embankments. It makes full use of the characteristics of tire wall to effectively improve the overall stability of fluidized solidified soil, effectively isolate the external environment and significantly reduce the shrinkage gaps between the fluidized solidified soil and the protective wall during the hardening process, thereby further ensuring the quality of the project. Moreover, the structure is simple.

[0006] The objective of this invention is achieved as follows: This invention provides a waste tire protective wall for fluidized solidified soil embankments, which is composed of multiple waste tire protective units; each waste tire protective unit consists of two waste tires A, n waste tires B, reinforcing bars and fasteners, wherein waste tire B is a complete tire, and waste tire A is a half tire with the same size as waste tire B.

[0007] A through hole A is provided at the center of the sidewall of each waste tire A, and a corresponding through hole B is provided at the corresponding position on the sidewall of each waste tire B, with the line connecting the two through holes B passing through the center of the tire; n+2 waste tires are placed horizontally with waste tire A on both sides and n waste tires B in the middle, with the cut directions of the two waste tires A corresponding; then steel bars are passed through the through holes A of the two waste tires A and the through holes B of the n waste tires B, and the two waste tires A and the n waste tires B are connected by fasteners to form a waste tire protective wall unit;

[0008] Multiple waste tire protection wall units are laid parallel in the excavated trench with the tires tangent to each other at their respective positions to form a waste tire protection wall layer. Then, a second waste tire protection wall layer is laid on top of the first waste tire protection wall layer in a vertically overlapping manner, and a third waste tire protection wall layer is laid on top of the second waste tire protection wall layer, and so on, to form a waste tire protection wall composed of multiple waste tire protection wall layers.

[0009] Preferably, through hole A and through hole B are collectively referred to as through holes, and waste tire A and waste tire B are collectively referred to as waste tires. Then, there are a total of 2n+2 through holes on two waste tires A and n waste tires B. A set of fasteners is provided at each through hole, and the fasteners include bolts, nuts and washers.

[0010] The steel bars are divided into n+1 segments. The two ends of each segment are welded to the head of a bolt. Then, two bolts are passed back to back through the corresponding through holes of two adjacent waste tires and fastened with washers, nuts and bolts to complete the connection of n+2 waste tires.

[0011] Preferably, the number of layers N of the waste tire protective wall layer is selected according to the design height of the embankment filling, and N≥1.

[0012] The present invention also provides a construction method for a waste tire protective wall for a fluidized solidified soil embankment, comprising the following steps;

[0013] Step 1, Treatment of embankment foundation

[0014] After the embankment foundation is treated and leveled, two trenches are excavated along the outer side of the embankment edge, and the width of the roadside trench is greater than the radius of the waste tire; n intermediate embankment trenches are excavated along the centerline of the embankment, and the width of the intermediate embankment trenches is greater than the diameter of the waste tire; the trench depth of the roadside trenches and the intermediate embankment trenches is d, d≤0.5D, where D is the thickness of the waste tire B.

[0015] Step 2, Install waste tire protective wall units

[0016] S1, embed a layer of impermeable geotextile into the two excavated roadside trenches;

[0017] S2, multiple waste tire protection wall units are laid parallel in the excavated roadside ditch or intermediate embankment ditch with both ends aligned to form a waste tire protection wall layer, and the steel bars of the waste tire protection wall units are perpendicular to the embankment direction. Among them, the waste tires A on both sides are placed in the two roadside ditches respectively, and the waste tires B are placed in the corresponding intermediate embankment ditch.

[0018] S3, the waste tire protective wall layer is laid in batches according to the vertical overlap. The second waste tire protective wall layer is laid on the first waste tire protective wall layer, the third waste tire protective wall layer is laid on the second waste tire protective wall layer, and so on, laying multiple waste tire protective wall layers; wherein, the height of each batch of waste tire protective wall layer is recorded as M.

[0019] S4, wrap the waste tires A on both sides with impermeable geotextile along the outside, and turn the excess impermeable geotextile over the upper surface of the waste tire A protective wall layer laid in each batch.

[0020] Step 3: Pour the fluidized solidified soil in layers.

[0021] Based on the design height of the embankment, determine the number of layers of fluidized solidified soil to be laid, and then pour the first layer of fluidized solidified soil embankment; after the first layer of fluidized solidified soil has set, pour the second layer of fluidized solidified soil, and so on to complete the laying of multiple layers of fluidized solidified soil.

[0022] The interval between each layer of pouring should be greater than 12 hours, and the thickness of each layer should be controlled between 1m and 2m.

[0023] Step 4, Repairing the sidewalls of the fluidized solidified soil embankment

[0024] After the fluidized solidified soil embankment is poured and hardened, the impermeable geotextile wrapped around the waste tire A is cut along the ground, and the fluidized solidified soil that seeps out from the gaps between the waste tires A is repaired.

[0025] Preferably, the height M of the waste tire protective wall layer laid in each batch is slightly greater than the thickness of the fluidized solidified soil laid in each layer.

[0026] Preferably, if heavy rain or continuous light rain occurs during the pouring of fluidized solidified soil, the unhardened surface layer of fluidized solidified soil shall be covered.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) In this invention, waste tire A and waste tire B are laid horizontally, and the cut direction of waste tire A is opposite to that of waste tire B. In the horizontal direction, waste tire A and waste tire B are connected by steel bars and fasteners to form a waste tire protection unit. Multiple waste tire protection units are connected tangentially in the horizontal direction and overlapped in the vertical direction to form a waste tire protection wall structure. This structure makes full use of the cavity of the semi-circular ring of waste tire A. On the one hand, it allows the poured fluidized solidified soil to be fully bonded to the inner wall of the tire, which effectively improves the overall stability of the fluidized solidified soil. On the other hand, the flexible characteristics of the tire wall and the closed structure effectively isolate the fluidized solidified soil embankment from the external environment, significantly reducing the shrinkage gaps generated between the fluidized solidified soil and the protection wall during the hardening process, and further ensuring the quality of the project.

[0029] (2) The present invention utilizes waste tires to replace reinforced concrete to form a fluid soil protective wall. The structure is simple and has the advantages of being lightweight, corrosion resistant, low cost, and environmentally friendly. At the same time, its construction method is easy to operate, saves manpower and time costs, and is easy to promote and apply. Attached Figure Description

[0030] Figure 1 This is a top view of the waste tire protective wall in an embodiment of the present invention;

[0031] Figure 2 This is a cross-sectional view of the waste tire protective wall in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the waste tire B in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of waste tire A in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the steel bar connection in an embodiment of the present invention;

[0035] Figure 6 This is a top view of the construction of the fluid soil waste tire protective wall embankment in an embodiment of the present invention;

[0036] Figure 7 This is a cross-sectional view of the construction of the fluidized soil waste tire protective wall embankment in an embodiment of the present invention.

[0037] In the diagram: 1. Waste tire A; 2. Waste tire B; 3. Rebar; 4. Bolt; 5. Nut; 6. Washer; 7. Through hole B; 8. Impermeable geotextile; 9. Fluidized solidified soil; 10. Through hole A. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-7 The embodiments of the present invention will be described in detail.

[0039] Figure 1 This is a top view of the waste tire protective wall in an embodiment of the present invention. Figure 2 This is a cross-sectional view of the waste tire protective wall in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of waste tire B in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of waste tire A in an embodiment of the present invention. Figure 5 This is a schematic diagram of the steel bar connection in an embodiment of the present invention. Figures 1-5 As can be seen, the present invention provides a waste tire protective wall for fluidized solidified soil embankments, which is composed of multiple waste tire protection units. Each waste tire protection unit consists of two waste tires A1, n waste tires B2, reinforcing bars 3, and fasteners. Each waste tire B2 is a complete tire, and each waste tire A1 is a half-tire with the same dimensions as waste tire B2. Specifically, waste tire A1 is formed by radially and evenly cutting a complete waste tire B2.

[0040] A through hole A10 is provided at the center of the sidewall of each waste tire A1, and a corresponding through hole B7 is provided on the sidewall of each waste tire B2, with the line connecting the two through holes B7 passing through the center of the tire. The n+2 waste tires are placed horizontally with waste tire A1 on both sides and n waste tires B2 in the middle, with the cut directions of the two waste tires A1 corresponding. Then, a steel bar 3 is passed through the through holes A10 of the two waste tires A1 and the through holes B7 of the n waste tires B2, and the two waste tires A1 and the n waste tires B2 are connected by fasteners to form a waste tire protective wall unit.

[0041] Multiple waste tire protection wall units are laid parallel in the excavated trench with the tires tangent to each other at their respective positions to form a waste tire protection wall layer. Then, a second waste tire protection wall layer is laid on top of the first waste tire protection wall layer in a vertically overlapping manner, and a third waste tire protection wall layer is laid on top of the second waste tire protection wall layer, and so on, to form a waste tire protection wall composed of multiple waste tire protection wall layers.

[0042] In this embodiment, n = 1.

[0043] In this embodiment, through holes A10 and B7 are collectively referred to as through holes, and waste tires A1 and B2 are collectively referred to as waste tires. Therefore, there are a total of 2n+2 through holes on two waste tires A1 and n waste tires B2. Each through hole is equipped with a set of fasteners, including bolts 4, nuts 5, and washers 6. In this embodiment, there are a total of 4 through holes in the 3 waste tires.

[0044] The reinforcing bar 3 is divided into n+1 segments. The two ends of each segment are welded to the head of a bolt 4. Two bolts 4 are then passed back-to-back through the corresponding through holes of two adjacent discarded tires and secured with washers 6, nuts 5, and the threads of the bolts 4, thus connecting n+2 discarded tires. In this embodiment, the reinforcing bar 3 is divided into 2 segments.

[0045] In this embodiment, the number N of the waste tire protective wall layer is selected according to the design height of the embankment, and N≥1. In this embodiment, N=11.

[0046] The present invention also provides a construction method for a waste tire protective wall for a fluidized solidified soil embankment, comprising the following steps;

[0047] Step 1, Treatment of embankment foundation

[0048] After the embankment foundation is treated and leveled, two trenches are excavated along the outer side of the embankment edge, and the width of the roadside trench is greater than the radius of the waste tire; n intermediate embankment trenches are excavated along the centerline of the embankment, and the width of the intermediate embankment trenches is greater than the diameter of the waste tire; the trench depth of the roadside trenches and the intermediate embankment trenches is d, d≤0.5D, where D is the thickness of the waste tire B2;

[0049] Step 2, Install waste tire protective wall units

[0050] S1, embed a layer of impermeable geotextile 8 into the two excavated embankment trenches;

[0051] S2, multiple waste tire protection wall units are laid parallel in the excavated roadside ditch or intermediate embankment ditch in a way that aligns the ends to form a waste tire protection wall layer, and the steel bars 3 of the waste tire protection wall units are perpendicular to the embankment direction. Among them, the waste tires A1 on both sides are placed in the two roadside ditches respectively, and the waste tires B2 are placed in the corresponding intermediate embankment ditch.

[0052] S3, the waste tire protective wall layer is laid in batches according to the vertical overlap. The second waste tire protective wall layer is laid on the first waste tire protective wall layer, the third waste tire protective wall layer is laid on the second waste tire protective wall layer, and so on, laying multiple waste tire protective wall layers; wherein, the height of each batch of waste tire protective wall layer is recorded as M.

[0053] S4, the impermeable geotextile 8 is stretched and wrapped tightly around the outside of the waste tires A1 on both sides, and the excess impermeable geotextile 8 is turned outwards onto the upper surface of the protective wall layer of each batch of waste tires A1.

[0054] Step 3: Pour the fluidized solidified soil in layers.

[0055] Based on the design height of the embankment, determine the number of layers of fluidized solidified soil to be laid, and then pour the first layer of fluidized solidified soil 9 for the embankment; after the first layer of fluidized solidified soil 9 has set, pour the second layer of fluidized solidified soil 9, and so on to complete the laying of multiple layers of fluidized solidified soil 9.

[0056] The interval between each layer of pouring should be greater than 12 hours, and the thickness of each layer should be controlled between 1m and 2m.

[0057] Step 4, Repairing the sidewalls of the fluidized solidified soil embankment

[0058] After the embankment of the fluidized solidified soil 9 is poured and hardened, the impermeable geotextile 8 wrapped around the waste tire A1 is cut along the ground, and the fluidized solidified soil 9 that seeps out from the gaps between the waste tires A1 is repaired.

[0059] The height M of each batch of waste tire protective wall layer is slightly greater than the thickness of each layer of fluidized solidified soil 9. In this embodiment, the thickness of one waste tire protective wall layer is 0.215m, the thickness of each layer of fluidized solidified soil 9 is 1.0-1.3m, the number of waste tire protective wall layers in each batch is 5, and the height M is 1.075m.

[0060] In this embodiment, if heavy rain or continuous light rain occurs during the pouring of the fluidized solidified soil 9, the surface of the unhardened fluidized solidified soil 9 shall be covered.

[0061] Figure 6 This is a top view of the construction of a fluid soil waste tire protective wall embankment according to an embodiment of the present invention. Figure 7 This is a cross-sectional view of the construction of the fluidized soil waste tire protective wall embankment in an embodiment of the present invention.

Claims

1. A construction method for waste tire protective walls in fluidized solidified soil embankments, characterized in that, The waste tire protective wall is composed of multiple waste tire protective wall units; the waste tire protective wall unit is composed of two waste tires A (1), n ​​waste tires B (2), steel bars (3) and fasteners, the waste tire B (2) is a complete tire, and the waste tire A (1) is a half tire with the same size as the waste tire B (2); A through hole A (10) is provided at the center of the sidewall of each waste tire A (1), and a through hole B (7) is provided at the corresponding position on the sidewall of each waste tire B (2), and the line connecting the two through holes B (7) passes through the center of the tire; n+2 waste tires are placed horizontally with waste tire A (1) on both sides and n waste tires B (2) in the middle, and the cut directions of the two waste tires A (1) are corresponding. Then, steel bars (3) are passed through the through holes A (10) of the two waste tires A (1) and the through holes B (7) of the n waste tires B (2), and the two waste tires A (1) and the n waste tires B (2) are connected by fasteners to form a waste tire protective wall unit; Multiple waste tire protection wall units are laid parallel in the excavated trench in a manner that tangentially aligns the tires at their respective positions to form a waste tire protection wall layer. Then, a second waste tire protection wall layer is laid on top of the first waste tire protection wall layer in a vertically overlapping manner, and a third waste tire protection wall layer is laid on top of the second waste tire protection wall layer, and so on, to form a waste tire protection wall composed of multiple waste tire protection wall layers. The construction method includes the following steps; Step 1, Treatment of embankment foundation After the embankment foundation is treated and leveled, two trenches are excavated along the outer side of the embankment edge, and the width of the roadside trench is greater than the radius of the waste tire; n intermediate embankment trenches are excavated along the centerline of the embankment, and the width of the intermediate embankment trench is greater than the diameter of the waste tire; the trench depth of the roadside trench and the intermediate embankment trench is d, d≤0.5D, where D is the thickness of the waste tire B(2); Step 2, Install waste tire protective wall units S1, embed a layer of impermeable geotextile (8) into the two excavated roadside trenches; S2, multiple waste tire protective wall units are laid in parallel in the excavated roadside ditch or intermediate embankment ditch in a way that the ends are aligned to form a waste tire protective wall layer, and the steel bars (3) of the waste tire protective wall units are perpendicular to the embankment direction. Among them, the waste tires A (1) on both sides are placed in the two roadside ditches respectively, and the waste tires B (2) are placed in the corresponding intermediate embankment ditch. S3, lay the waste tire protective wall layer in batches according to the vertical overlap. Lay the second waste tire protective wall layer on the first waste tire protective wall layer, lay the third waste tire protective wall layer on the second waste tire protective wall layer, and so on to lay multiple waste tire protective wall layers; wherein, the height of each batch of waste tire protective wall layer is recorded as M. S4, the impermeable geotextile (8) is used to wrap the waste tires A (1) on both sides tightly along the outside, and the excess impermeable geotextile (8) is turned outward on the upper surface of the protective wall layer of each batch of waste tires A (1). Step 3: Pour the fluidized solidified soil in layers. Based on the design height of the embankment, determine the number of layers of fluidized solidified soil to be laid, and then pour the first layer of fluidized solidified soil (9) embankment; after the first layer of fluidized solidified soil (9) has set, pour the second layer of fluidized solidified soil (9), and so on to complete the laying of multiple layers of fluidized solidified soil (9); The interval between each layer of pouring should be greater than 12 hours, and the thickness of each layer should be controlled between 1m and 2m. Step 4, Repairing the sidewalls of the fluidized solidified soil embankment After the embankment of the fluidized solidified soil (9) is poured and hardened, the impermeable geotextile (8) wrapped around the waste tire A (1) is cut along the ground and the fluidized solidified soil (9) seeping out from the gaps between the waste tires A (1) is repaired.

2. The construction method for waste tire protective wall for fluidized solidified soil embankment according to claim 1, characterized in that, The height M of the waste tire protective wall layer laid in each batch is slightly greater than the thickness of the fluidized solidified soil (9) laid in each layer.

3. The construction method for waste tire protective wall for fluidized solidified soil embankment according to claim 1, characterized in that, If heavy rain or continuous light rain occurs during the pouring of fluidized solidified soil (9), the surface of the unhardened fluidized solidified soil (9) should be covered.

4. A construction method for a waste tire protective wall for a fluidized solidified soil embankment according to claim 1, characterized in that, Through holes A (10) and through holes B (7) are collectively referred to as through holes, and waste tires A (1) and waste tires B (2) are collectively referred to as waste tires. There are a total of 2n+2 through holes on two waste tires A (1) and n waste tires B (2). A set of fasteners is provided at each through hole, and the fasteners include bolts (4), nuts (5) and washers (6). The steel bar (3) is divided into n+1 segments. The two ends of each steel bar (3) are welded together with the head of a bolt (4). Then, two bolts (4) are passed through the corresponding through holes of two adjacent waste tires in opposite directions and fastened with washers (6), nuts (5) and bolts (4) to complete the connection of n+2 waste tires.

5. A construction method for a waste tire protective wall for a fluidized solidified soil embankment according to claim 1, characterized in that, The number of layers N of the waste tire protective wall layer is selected according to the design height of the embankment filling, and N≥1.

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