Road rock slope construction method

Abstract

The invention provides a road rock slope construction method, and relates to the field of road construction. Comprising the following steps that rock soil on the two sides of a road is excavated through an excavator, chiseling allowance is reserved, and a first slope surface is obtained; chiseling the first slope for the first time by adopting a crusher according to a sequence from top to bottom to obtain a second slope, and chiseling a protection platform at the bottom of each layer; performing secondary chiseling on the second slope surface by adopting the crusher according to the sequence from top to bottom in a layering manner to obtain a third slope surface; and a first reinforcing structure is arranged on the third slope surface, a second reinforcing structure is arranged on the multiple protection platforms, and the first reinforcing structure is connected with the second reinforcing structure. The slope surface of the road rock slope can be smoother, and the safety performance is higher.

Description

Technical Field

[0001] The invention relates to the field of road construction, and in particular to a road rock slope construction method. Background Art

[0002] At present, blasting is mostly used in the construction of road rock slopes, and precise chiseling is generally not performed. The slope surface is relatively rough, the overall flatness is poor, the subsequent maintenance cost is high, and the appearance effect is not good. With the increase in road network construction projects, people have higher and higher requirements for road driving environment, road construction quality and the safety of slopes on both sides of the road, and have put forward higher requirements for the construction quality and process of the slopes. Summary of the invention

[0003] The object of the present invention is to provide a road rock slope construction method, which can make the road rock slope surface smoother and have higher safety performance.

[0004] The embodiment of the present invention is achieved as follows:

[0005] The present application provides a road rock slope construction method, comprising the following steps:

[0006] Use an excavator to dig the rock and soil on both sides of the road, and reserve a chiseling margin to obtain the first slope;

[0007] The first slope surface is chiseled out layer by layer from top to bottom using a crusher to obtain a second slope surface, and a protective platform is chiseled out at the bottom of each layer;

[0008] The second slope surface is chiseled twice in layers from top to bottom using a crusher to obtain a third slope surface;

[0009] A first reinforcement structure is arranged on the third slope surface, and a second reinforcement structure is arranged on a plurality of the protection platforms, wherein the first reinforcement structure is connected to the second reinforcement structure.

[0010] Further, based on the above scheme, the step of using an excavator to excavate the rock and soil on both sides of the road and reserving a chiseling margin to obtain the first slope surface includes:

[0011] The excavator is used to excavate rock and soil layer by layer in a top-down order, and when excavating each layer of rock and soil, the excavation is carried out section by section in a sequence from the inner side of the road to the outer side of the road.

[0012] Further, based on the above scheme, the step of using the excavator to dig rock and soil layer by layer in a top-down order includes:

[0013] The excavator is used for multiple excavations, each time a layer of rock and soil is excavated. After each layer of rock and soil is excavated, the thickness of the excavated rock and soil is remeasured to ensure that the thickness of each layer of rock and soil is less than 2000mm.

[0014] Further, based on the above scheme, the step of digging the road section by section in the order from the inner side of the road to the outer side of the road includes:

[0015] Each layer of rock and soil is excavated multiple times by an excavator, and a section of rock and soil is excavated each time. After each section of rock and soil is excavated, the width of the excavated rock and soil is remeasured to ensure that the width of each section of rock and soil is less than 50m.

[0016] Further, based on the above scheme, the step of using a crusher to chisel the first slope surface layer by layer in a top-down order to obtain a second slope surface, and chiseling out a protective platform at the bottom of each layer includes:

[0017] A crusher is used to partially chisel the reserved chiseling margin of the first slope surface in layers from top to bottom to obtain a second slope surface; wherein the chiseling thickness is 300 mm to 500 mm;

[0018] When chiseling in layers, a protective platform is chiseled out at the bottom of each layer.

[0019] Further, based on the above scheme, the step of using a crusher to perform secondary chiseling on the second slope surface in layers from top to bottom to obtain the third slope surface includes:

[0020] The remaining chiseling residue of the second slope surface is chiseled out layer by layer in a top-down order using a crusher to obtain a third slope surface; wherein the chiseling thickness is 100 mm-200 mm.

[0021] Further, based on the above solution, the step of providing a first reinforcement structure on the third slope surface includes:

[0022] A plurality of positioning anchor points are arranged on each layer of the third slope surface, and the plurality of positioning anchor points of each layer are staggered along the direction of the road, and the staggered anchor points are respectively located at the top and the bottom of each layer of the slope surface;

[0023] Connecting the plurality of positioning anchor points in sequence along the road direction through concrete connecting plates;

[0024] Prestressed anchor cables are penetrated through the plurality of positioning anchor points and connected to the concrete connecting plate. The prestressed anchor cables are penetrated through the interior of the third slope surface, and the penetration depth thereof passes through the weak weathering and weak unloading line of the third slope surface.

[0025] Further, based on the above solution, the concrete connecting plate is perpendicular to the third slope surface, and a plurality of through holes are formed on the concrete connecting plate.

[0026] Further, based on the above solution, the step of providing a second reinforcement structure on the plurality of protection platforms includes:

[0027] A plurality of blocking feet are sequentially arranged at intervals along the road direction on each of the protection platforms, the blocking feet are close to the bottom of the third slope, and the blocking feet are opposite to the positioning anchor point at the bottom.

[0028] Further, based on the above solution, the step of connecting the first reinforcement structure with the second reinforcement structure includes:

[0029] The stop foot is connected to the concrete connection plate at the positioning anchor point opposite thereto.

[0030] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0031] This application reserves chiseling allowance during the slope rock excavation construction, chisels the slope twice respectively, removes the reserved chiseling allowance, and obtains a relatively flat slope; and through the top-down layered excavation and chiseling construction method, it can effectively prevent the occurrence of loose stones during construction work, thereby ensuring the safety of construction personnel; by chiseling the slope into a structure of multiple slopes and protective platforms, multiple protective platforms can effectively prevent the loose stones on the slope from sliding onto the road and causing traffic accidents; it can greatly improve the safety of the slope; by setting a first reinforcement structure on the slope after chiseling, setting a second reinforcement structure on the protective platform, and connecting the first reinforcement structure and the second reinforcement structure, the stability of the slope can be further reinforced, which can effectively solve the problem that the slope is prone to landslides. This application can make the road rock slope surface smoother and have higher safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A flowchart of the steps of the road rock slope construction method according to an embodiment of the present invention;

[0034] Figure 2 This is a front view of a rock slope of a road according to an embodiment of the present invention;

[0035] Figure 3 It is a side view of a rock slope of a road according to an embodiment of the present invention.

[0036] Icons: 10-third slope, 11-positioning anchor point, 12-concrete connecting plate, 13-prestressed anchor cable, 20-protective platform, 21-foot barrier. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below in conjunction with the drawings in the embodiments of the present application.

[0038] Please refer to Figure 1 , shown is a flow chart of the steps of the road rock slope construction method,

[0039] This embodiment provides a road rock slope construction method, comprising the following steps:

[0040] S110, using an excavator to excavate the rock and soil on both sides of the road, and leaving a chiseling margin to obtain a first slope surface;

[0041] S120, using a crusher to chisel the first slope surface layer by layer in a top-down order to obtain a second slope surface, and chiseling out a protective platform 20 at the bottom of each layer;

[0042] S130, using a crusher to perform secondary chiseling on the second slope surface in layers from top to bottom to obtain a third slope surface 10;

[0043] S140. Dispose a first reinforcement structure on the third slope 10, and dispose a second reinforcement structure on the plurality of protection platforms 20, wherein the first reinforcement structure is connected to the second reinforcement structure.

[0044] Next, a road rock slope construction method according to this exemplary embodiment will be further described.

[0045] In some embodiments, step S110, using an excavator to excavate the rock and soil on both sides of the road, and reserving a chiseling margin to obtain a first slope, specifically includes: using an excavator to excavate the rock and soil layer by layer in a top-down order, and when excavating each layer of rock and soil, excavating it section by section in a sequence from the inside of the road to the outside of the road. Layered and layered excavation refers to using an excavator to excavate multiple times, each time excavating a layer of rock and soil, after each layer of rock and soil is excavated, the thickness of the excavated rock and soil is remeasured, so that the thickness of each layer of rock and soil is less than 2000mm. Sectional excavation refers to using an excavator to excavate each layer of rock and soil multiple times, each time excavating a section of rock and soil, after each section of rock and soil is excavated, the width of the excavated rock and soil is remeasured, so that the width of each section of rock and soil is less than 50m.

[0046] Before performing step S110, the topography of the surface of the rock and soil to be excavated is measured using a total station, and lime powder is sprinkled on the surface of the rock and soil to be excavated to mark the edge line of the reserved chiseling allowance.

[0047] In some embodiments, step S120, using a crusher to chisel the first slope surface in layers from top to bottom to obtain a second slope surface, and chiseling out a protective platform 20 at the bottom of each layer, specifically includes: using a crusher to chisel out part of the chiseling margin reserved for the first slope surface in layers from top to bottom, that is, removing a part of the chiseling margin in step S110, that is, the rough chiseling margin, to obtain the second slope surface; wherein the chiseling thickness is 300mm-500mm. When chiseling in layers, a protective platform 20 is chiseled out at the bottom of each layer, and the protective platform 20 is level with the road, which can block falling rocks and landslides on the slope and improve the safety performance of the slope.

[0048] In some embodiments, step S130, using a crusher to perform secondary chiseling on the second slope surface in layers from top to bottom to obtain a third slope surface 10, specifically includes: using a crusher to chisel the remaining chiseling residue on the second slope surface in layers from top to bottom, that is, removing the remaining part of the chiseling residue in step S110, that is, the fine chiseling residue, to obtain the third slope surface 10; wherein the chiseling thickness is 100mm-200mm.

[0049] By adopting two chiseling processes, the slope is first roughly chiseled and then finely chiseled, so that the rock slope surface formed after construction is smoother. By using the layered and segmented excavation methods, it is possible to effectively prevent rockfall and other situations on the slope during construction, thereby improving the safety of construction workers. By setting the slope as a structure of multiple slopes and protective platforms 20 from top to bottom, with a protective platform 20 at intervals, the safety performance of the slope can be effectively improved, and talc, loose stones, landslides, etc. on the slope can be prevented from obstructing the road and causing road traffic accidents, thereby greatly improving the safety of the road.

[0050] In some embodiments, step S140, setting a first reinforcement structure on the third slope 10, specifically includes: setting a plurality of positioning anchor points 11 on each layer of the third slope 10, the plurality of positioning anchor points 11 of each layer are staggered along the direction of the road, and the staggered distributed anchor points are respectively located at the top and bottom of each layer of the slope; connecting the plurality of positioning anchor points 11 in sequence along the direction of the road through concrete connecting plates 12; by setting a plurality of positioning anchor points 11, and connecting the plurality of staggered positioning anchor points 11 through a plurality of concrete connecting plates 12, a plurality of triangular support frames are formed on the slope, which can make the shallow surface of the slope more stable, such as Figure 2 shown.

[0051] Prestressed anchor cables 13 are inserted at multiple positioning anchor points 11 and connected to concrete connecting plates 12. The prestressed anchor cables 13 are inserted inside the third slope surface 10. The prestressed anchor cables 13, concrete connecting plates 12 and slope surface are connected and coordinated with each other, so that the rock slope forms a more stable whole, improving the deep stability of the slope. In order to enhance the anchoring effect of the prestressed anchor cables 13, the penetration depth of the prestressed anchor cables 13 is set to pass through the weak weathering and weak unloading line of the third slope surface 10, such as Figure 3 shown.

[0052] As a preferred embodiment, the concrete connecting plate 12 is perpendicular to the third slope 10, and a plurality of through holes are provided on the concrete connecting plate 12. The plurality of concrete connecting plates 12 perpendicular to the slope can not only enhance the stability of the shallow surface of the slope, but also block and limit the loose stones on the slope to prevent them from rolling and sliding. At the same time, the concrete connecting plates 12 arranged in a triangular shape on the slope not only improve the aesthetics of the slope, but also provide space for planting slope protection vegetation in the later stage.

[0053] In some embodiments, step S140, the second reinforcement structure on multiple protection platforms 20, specifically includes: on each protection platform 20, multiple foot blocks 21 are arranged in sequence along the road direction, the foot blocks 21 are close to the bottom of the third slope 10, and the foot blocks 21 are opposite to the positioning anchor point 11 at the bottom. By arranging multiple foot blocks 21 at intervals on the protection platform 20, it is possible to prevent each layer of the slope from sliding along the slope foot, thereby improving the stability of the slope. And the spacing between the multiple foot blocks 21 arranged at intervals is set to be small, and the drainage channel is discharged, which does not affect the drainage and can prevent the slope from sliding. The foot block 21 is connected to the concrete connecting plate 12 at the positioning anchor point 11 opposite to it, and forms a whole with the concrete connecting plate 12, thereby improving the overall stability of the slope.

[0054] In addition, unless otherwise expressly specified or limited, in the embodiments of the present application, if the terms "installation" and "connection" appear, they should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. If the terms "upper", "lower", "left", "right", "inner", "outer", "side" and other directional terms appear, they are only with reference to the direction of the accompanying drawings or the orientation in which the product is usually placed when in use. They are only for the purpose of clearly describing the present application, 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 cannot be understood as a limitation on the present application. The terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance; "multiple" means at least two. In the embodiments of the present application, the limitations of relative positional relationships such as parallel, vertical, and aligned are all for the current technological level, rather than absolutely strict limitations. A small amount of deviation is allowed, and approximately parallel, approximately vertical, approximately aligned, etc. are all acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0055] The above are only some embodiments and implementation methods of the present application. The protection scope of the present application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of the present application. Any changes or substitutions that can be easily thought of by any technician familiar with the field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A road rock slope construction method, characterized in that: The steps include: Use an excavator to dig the rock and soil on both sides of the road, and reserve a chiseling margin to obtain the first slope; The first slope surface is chiseled out layer by layer from top to bottom using a crusher to obtain a second slope surface, and a protective platform is chiseled out at the bottom of each layer; The second slope surface is chiseled twice in layers from top to bottom using a crusher to obtain a third slope surface; A first reinforcement structure is arranged on the third slope surface, and a second reinforcement structure is arranged on a plurality of the protection platforms, wherein the first reinforcement structure is connected to the second reinforcement structure.

2. The road rock slope construction method according to claim 1, characterized in that: The step of using an excavator to excavate the rock and soil on both sides of the road and reserving a chiseling margin to obtain the first slope surface includes: The excavator is used to excavate rock and soil layer by layer in a top-down order, and when excavating each layer of rock and soil, the excavation is carried out section by section in a sequence from the inner side of the road to the outer side of the road.

3. The road rock slope construction method according to claim 2, characterized in that: The step of using the excavator to dig rock and soil layer by layer in a top-down order includes: The excavator is used for multiple excavations, each time a layer of rock and soil is excavated. After each layer of rock and soil is excavated, the thickness of the excavated rock and soil is remeasured to ensure that the thickness of each layer of rock and soil is less than 2000mm.

4. The road rock slope construction method according to claim 2, characterized in that: The step of digging the road section by section in the order from the inner side of the road to the outer side of the road comprises: Each layer of rock and soil is excavated multiple times using an excavator, with a section of rock and soil being excavated each time. After each section of rock and soil is excavated, the width of the excavated rock and soil is remeasured to ensure that the width of each section of rock and soil is less than 50m.

5. The road rock slope construction method according to claim 1, characterized in that: The step of using a crusher to chisel the first slope surface layer by layer from top to bottom to obtain a second slope surface, and chiseling out a protective platform at the bottom of each layer, comprises: A crusher is used to partially chisel the reserved chiseling margin of the first slope surface in layers from top to bottom to obtain a second slope surface; wherein the chiseling thickness is 300 mm to 500 mm; When chiseling in layers, a protective platform is chiseled out at the bottom of each layer.

6. The road rock slope construction method according to claim 5, characterized in that: The step of using a crusher to perform secondary chiseling on the second slope surface in layers from top to bottom to obtain the third slope surface comprises: The remaining chiseling residue of the second slope surface is chiseled out layer by layer in a top-down order using a crusher to obtain a third slope surface; wherein the chiseling thickness is 100 mm-200 mm.

7. The road rock slope construction method according to claim 1, characterized in that: The step of providing a first reinforcement structure on the third slope surface comprises: A plurality of positioning anchor points are arranged on each layer of the third slope surface, and the plurality of positioning anchor points of each layer are staggered along the direction of the road, and the staggered anchor points are respectively located at the top and the bottom of each layer of the slope surface; Connecting the plurality of positioning anchor points in sequence along the road direction through concrete connecting plates; Prestressed anchor cables are penetrated through the plurality of positioning anchor points and connected to the concrete connecting plate. The prestressed anchor cables are penetrated through the interior of the third slope surface, and the penetration depth thereof passes through the weak weathering and weak unloading line of the third slope surface.

8. The road rock slope construction method according to claim 7, characterized in that: The concrete connecting plate is perpendicular to the third slope surface, and a plurality of through holes are formed on the concrete connecting plate.

9. The road rock slope construction method according to claim 7, characterized in that: The step of providing a second reinforcement structure on the plurality of protection platforms comprises: A plurality of blocking feet are sequentially arranged at intervals along the road direction on each of the protection platforms, the blocking feet are close to the bottom of the third slope, and the blocking feet are opposite to the positioning anchor point at the bottom.

10. The road rock slope construction method according to claim 9, characterized in that: The step of connecting the first reinforcement structure to the second reinforcement structure comprises: The stop foot is connected to the concrete connection plate at the positioning anchor point opposite thereto.

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