Method for improving local structure of slope in high-cut and widened road section

Abstract

The present invention provides a method for modifying the local structure of a slope in a high-cut road section, which relates to the technical field of road slope structure construction. The method comprises the following steps: slotting the crossbeam portion of the protective wall in sections; installing anchor rods and reinforcing crossbeams at the slots in the protective wall, connecting one end of the anchor rod to the reinforcing crossbeam and inserting the other end into the slope for fixation; pouring concrete at the reinforcing crossbeam; after the concrete dries, excavating the slope and protective wall below the reinforcing crossbeam; laying a C30 concrete foundation and installing drainage components to connect the C30 concrete foundation to the road. The present invention alleviates the technical problems existing in the prior art of widening a cut road section, which are unable to reasonably modify the slope to meet traffic requirements, and which affect the normal use of the old slope.

Description

Technical Field

[0001] The invention relates to the technical field of road slope structure construction, in particular to a method for transforming the local structure of a high-cut and widened road section slope. Background Art

[0002] my country's highway construction is constantly developing. A large number of excellent highway projects have been completed across the country and are now put into use.

[0003] However, most existing expressways have four lanes. With increasing traffic volume, their capacity and service level can no longer meet actual traffic needs. Therefore, widening the roadbed and pavement is an important part of expressway reconstruction and expansion projects.

[0004] However, when the road section to be widened is located in an excavated section, the original slope of the highway needs to be partially modified after widening; the existing method of widening the excavated section cannot meet the needs of traffic by reasonably modifying the slope, and will also affect the normal use of the old slope. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for transforming the local structure of the slope of a high-excavation widening section, so as to alleviate the technical problems existing in the prior art that when widening the excavation section, the slope cannot be reasonably transformed to meet the needs of traffic, and the normal use of the old slope is affected.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a method for modifying the local structure of a slope in a high-cut widening section of a road, comprising the following steps:

[0008] Segmented notching is performed on the beam portion of the facing wall;

[0009] Install anchor rods and reinforced beams at the slots of the facing wall, connect one end of the anchor rod to the reinforced beam, and insert the other end into the slope for fixation;

[0010] pouring concrete at the reinforced beam;

[0011] After the concrete is dry, the slope and the facing wall below the reinforcement beam are excavated;

[0012] Lay a C30 concrete foundation and set up drainage components so that the C30 concrete foundation is connected to the road.

[0013] In an optional embodiment of the present invention, the steps of installing anchor rods and reinforcing beams at the slots of the retaining wall, connecting one end of the anchor rod to the reinforcing beam, and inserting the other end into the slope for fixation include:

[0014] A plurality of anchor rods are provided, and the spacing between adjacent anchor rods is 1.5 meters, so that the reinforcement beam supports the upper retaining wall;

[0015] The slope ratio of the side slope is 1:0.5.

[0016] Furthermore, the steps of installing anchor rods and reinforcing beams at the slots of the retaining wall, connecting one end of the anchor rod to the reinforcing beam, and inserting the other end into the slope for fixation include:

[0017] The length of each anchor rod is set to 3 meters, and the angle with the horizontal direction is 10°-11°, and the friction coefficient is 0.6, so that the pull-out force of the anchor rod is greater than the gravity of the retaining wall, thereby allowing the reinforced beam to support the retaining wall above it.

[0018] Furthermore, the steps of installing anchor rods and reinforcing beams at the slots of the retaining wall, connecting one end of the anchor rod to the reinforcing beam, and inserting the other end into the slope for fixation include:

[0019] Calculate the pullout component P' and the weight component G' of the retaining wall, and ensure that P' is greater than G';

[0020] P'=P×(cos(63.43°+10°)+sin(63.43°+10°)×0.6)=105.6kN;

[0021] G'=G×(cos(63.43°)-cos(63.43°)×0.6)=96.6kN;

[0022] P'>G';

[0023] Wherein, P is the pull-out resistance of the plurality of anchor rods, and G is the weight of the retaining wall.

[0024] Furthermore, the steps of installing anchor rods and reinforcing beams at the slots of the retaining wall, connecting one end of the anchor rod to the reinforcing beam, and inserting the other end into the slope for fixation include:

[0025] Calculate the pullout force P and the weight of the retaining wall G;

[0026] P1=(0.0125×0.0125×π×400×1000) / 1.6≈122.72kN;

[0027] P2=(3×π×0.05×550) / 2≈129.6kN;

[0028] P3=(3×π×0.025×2.4×1000) / 2≈283kN;

[0029] P=min(P1,P2,P3)≈122.72kN;

[0030] G=0.4×10×1.118×2300×10×10 -3 ×1.5≈154.3kN.

[0031] Furthermore, the steps of laying a C30 concrete foundation and setting a drainage assembly so as to connect the C30 concrete foundation to the road include:

[0032] A galvanized steel pipe for accommodating pipelines is set on the C30 concrete foundation, and concrete is poured on the outside of the pipe. The galvanized steel pipe is set on the side of the drainage component away from the road.

[0033] Furthermore, the steps of laying a C30 concrete foundation and installing a drainage assembly so that the C30 concrete foundation is connected to the road include:

[0034] A curb stone is arranged on the concrete of the galvanized steel pipe, and the curb stone is arranged on a side of the drainage component away from the road.

[0035] Furthermore, the steps of laying a C30 concrete foundation and installing a drainage assembly so that the C30 concrete foundation is connected to the road include:

[0036] A cement mortar layer is provided at the bottom of the curb.

[0037] Furthermore, the steps of laying a C30 concrete foundation and setting a drainage assembly so as to connect the C30 concrete foundation to the road include:

[0038] A contour mark is arranged on the concrete of the galvanized steel pipe, and the contour mark is arranged on the side of the curb away from the road.

[0039] Furthermore, the steps of laying a C30 concrete foundation and setting a drainage assembly so as to connect the C30 concrete foundation to the road include:

[0040] The drainage assembly includes a ditch body;

[0041] Fix the ditch body on the C30 concrete foundation with concrete and cover it with a ditch cover.

[0042] The present invention can achieve the following beneficial effects:

[0043] In a first aspect, the present invention provides a method for modifying the local structure of a slope in a high-cut widening section of a road, comprising the following steps:

[0044] Slot the beams of the retaining wall in sections; install anchor rods and reinforced beams at the slots of the retaining wall, connect one end of the anchor rod to the reinforced beam, and insert the other end into the slope for fixation; pour concrete at the reinforced beam; after the concrete dries, remove the slope and retaining wall below the reinforced beam; lay a C30 concrete foundation and set up drainage components to connect the C30 concrete foundation to the road.

[0045] In the present invention, construction workers first determine the part of the retaining wall that needs to be excavated, and install reinforcing beams at the excavated area. The reinforcing beams are fixed by anchor rods arranged at intervals, and concrete is poured to achieve the function of supporting the upper retaining wall; then the slope and retaining wall at the bottom of the prepared reinforcing beams are excavated, and a C30 concrete foundation is laid. Finally, the drainage components are reset to complete the road pavement widening and reconstruction.

[0046] Compared with the existing technology, the method for reconstructing the local structure of the slope of a high-excavation widening section provided by the present invention installs a reinforcing beam on the retaining wall so that the reinforcing beam supports the retaining wall above it, making it easier for construction workers to excavate the slope and retaining wall below the reinforcing beam, lay a C30 concrete foundation, and install drainage components to finally complete the road pavement widening and reconstruction.

[0047] In summary, the present invention at least alleviates the technical problems existing in the prior art that when widening the excavated road section, the slope cannot be reasonably modified to meet the demand for traffic, and the normal use of the old slope is affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] Figure 1 A schematic diagram of the main structure of the local structure of the slope of a high-cut and widened road section provided by an embodiment of the present invention;

[0050] Figure 2 An enlarged schematic diagram of the local structure of the slope of a high-cut and widened road section provided by an embodiment of the present invention;

[0051] Figure 3 A schematic structural diagram of the anchor rod connection portion of a local structure of a high-cut widening section slope provided by an embodiment of the present invention;

[0052] Figure 4 This is a schematic diagram of the main structure of the local structural reinforcement beam for the slope of a high-cut and widened road section provided by an embodiment of the present invention.

[0053] Icons: 1-reinforcement beam; 11-reinforcement frame; 12-reinforcement mesh; 2-anchor rod; 21-rod body; 22-bend part; 3-C30 concrete foundation; 4-side stone; 5-cement mortar layer; 6-galvanized steel pipe; 7-contour mark; 8-wall; 110-drainage component; 1101-ditch body; 1102-ditch cover; 120-surface layer. DETAILED DESCRIPTION

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0057] In the description of the present invention, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0058] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0059] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0060] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0061] Example 1

[0062] This embodiment provides a method for modifying the local structure of the slope of a high-cut widening section. Figure 1 The method for transforming the local structure of the slope of the high-cut widening section includes the following steps:

[0063] Slots are cut in sections on the beam portion of the retaining wall; anchor rods 2 are installed, and reinforcing beams 1 are installed at the slots of the retaining wall. One end of the anchor rod 2 is connected to the reinforcing beam 1, and the other end is inserted into the slope for fixation; concrete is poured at the reinforcing beam 1; after the concrete dries, the slope and retaining wall below the reinforcing beam 1 are excavated; a C30 concrete foundation 3 is laid and a drainage assembly 110 is installed to connect the C30 concrete foundation 3 to the road.

[0064] The embodiments of the present invention at least alleviate the technical problems existing in the prior art that, when widening an excavated road section, the slope cannot be reasonably modified to meet the demand for traffic, and the normal use of the old slope is affected.

[0065] In an embodiment of the present invention, the construction workers first determine the portion of the retaining wall that needs to be excavated, and install a reinforcing beam 1 at the excavated location. The reinforcing beam 1 is fixed by anchor rods 2 arranged at intervals, and concrete is poured to achieve the function of supporting the upper retaining wall; then the slope and retaining wall at the bottom of the prepared reinforcing beam 1 are excavated, and a C30 concrete foundation 3 is laid, and finally the drainage component 110 is reset to complete the road pavement widening and reconstruction.

[0066] It should be noted that when the retaining wall of the original slope is grooved and segmented anchored and supported, the next segment needs to be excavated after the previous segment anchoring and support is completed; and preferably, the segment length can be 5m.

[0067] Compared with the prior art, the method for reconstructing the local structure of the slope of a high-excavation widened road section provided in an embodiment of the present invention installs a reinforcing beam 1 on the retaining wall so that the reinforcing beam 1 supports the retaining wall above it, making it easier for construction workers to excavate the slope and retaining wall below the reinforcing beam 1, lay a C30 concrete foundation 3, and install a drainage component 110, thereby finally completing the road pavement widening and reconstruction.

[0068] In an optional implementation manner of this embodiment, refer to Figure 1 or Figure 4 , installing anchor rods 2, and installing reinforcement beams 1 at the slots of the facing wall, connecting one end of the anchor rods 2 to the reinforcement beams 1, and inserting the other end into the slope for fixing, the steps include:

[0069] A plurality of anchor rods 2 are provided, and the spacing between adjacent anchor rods 2 is 1.5 meters, so that the reinforcement beam 1 supports the upper retaining wall; the slope rate is 1:0.5.

[0070] Specifically: there are multiple anchor rods 2, and each anchor rod 2 is preferably a C25mm threaded steel bonded anchor rod, and the spacing between adjacent anchor rods 2 is 1.5m, that is, the reinforcement beam 1 and the wall 8 are fixed by the anchor rods 2 distributed at equal intervals.

[0071] Preferably, the reinforcement beam 1 is formed by connecting a reinforcement frame 11 and a reinforcement net 12 to facilitate fixation with the anchor rod 2 and pouring of concrete.

[0072] Further, refer to Figure 1 or Figure 3 , installing anchor rods 2, and installing reinforcement beams 1 at the slots of the facing wall, connecting one end of the anchor rods 2 to the reinforcement beams 1, and inserting the other end into the slope for fixing, the steps include:

[0073] The length of each anchor rod 2 is set to 3 meters, and the angle with the horizontal direction is 10°-11°, and the friction coefficient is 0.6, so that the pull-out force of the anchor rod is greater than the gravity of the retaining wall, thereby allowing the reinforced beam 1 to support the retaining wall above it.

[0074] Specifically: the anchor rod 2 is formed by providing a bending portion 22 at one end of the rod body 21, and the length of the bending portion 22 is 20 cm. After multiple anchor rods 2 are fixed, they are fixed to the reinforced beam 1 and the wall 8 by grouting. The grouting requirement is a water-cement ratio of 0.45 to 0.5, and it is M30 pure cement slurry. The cement is required to be grade 42.5 or above, and the grouting pressure is not less than 0.5 MPa.

[0075] Furthermore, the steps of installing anchor rods 2, installing reinforcement beams 1 at the slots of the retaining wall, connecting one end of the anchor rods 2 to the reinforcement beams 1, and inserting the other end into the slope for fixing include:

[0076] Calculate the pullout component P' and the weight component G' of the retaining wall, and ensure that P' is greater than G';

[0077] P'=P×(cos(63.43°+10°)+sin(63.43°+10°)×0.6)=105.6kN;

[0078] G'=G×(cos(63.43°)-cos(63.43°)×0.6)=96.6kN;

[0079] P'>G';

[0080] Where P is the pull-out resistance of multiple anchor rods 2, and G is the weight of the retaining wall.

[0081] Specifically, the slope ratio is 1:0.5 (with an inclination of 63.43°) and the friction coefficient of anchor rod 2 is 0.6. In this state, the pullout force component P' of multiple anchor rods 2 is 105.6 kN. This is greater than the 96.6 kN component G' of the weight of the retaining wall, thus achieving the function of fixed support for the retaining wall.

[0082] Furthermore, the steps of installing anchor rods 2, installing reinforcement beams 1 at the slots of the retaining wall, connecting one end of the anchor rods 2 to the reinforcement beams 1, and inserting the other end into the slope for fixing include:

[0083] Calculate the pull-out force P and the weight of the facing wall G;

[0084] P1=(0.0125×0.0125×π×400×1000) / 1.6≈122.72kN;

[0085] P2=(3×π×0.05×550) / 2≈129.6kN;

[0086] P3=(3×π×0.025×2.4×1000) / 2≈283kN;

[0087] P=min(P1,P2,P3)≈122.72kN;

[0088] G=0.4×10×1.118×2300×10×10-3×1.5≈154.3kN.

[0089] Specifically: calculate the values ​​of P1, P2 and P3, and obtain the required value of P by taking the minimum value of the three, and calculate the values ​​of P and G, calculate the values ​​of P' and G', and compare them.

[0090] What needs to be specified is:

[0091] Formula 1:

[0092] P1=AF ptk / K1;

[0093] Where: A——cross-sectional area of ​​anchor body (m 2 );

[0094] K1 - design safety factor of prestressed tendon section;

[0095] F ptk ——Standard value of tensile strength of anchor body material (kPa).

[0096] When calculating, F ptk The value is 400MPa, and the value of K1 is 1.6. The calculation results are as follows:

[0097] P1=(0.0125×0.0125×π×400×1000) / 1.6≈122.72kN.

[0098] Formula 2:

[0099] P2=πdL r f rb / K2;

[0100] Where: L r ——bonding length between the stratum and the grouting body (m);

[0101] K2 - safety factor;

[0102] d——diameter of the drilling hole in the anchoring section (m);

[0103] f rb ——Design value of bond strength between the formation and the grouting body (kPa).

[0104] When calculating, d is taken as 0.05m, L r The value is 3m, f rb The value is 550kPa, and the value of K2 is 2.0. The calculation results are as follows:

[0105] P2=(3×π×0.05×550) / 2≈129.6kN.

[0106] Formula 3:

[0107] P3=nπd g L g f b / K2;

[0108] Where: L g ——bonding length between grouting body and anchor bolt body (m);

[0109] d g ——diameter of anchor body material (m);

[0110] f b ——Design value of bond strength between grouting body and anchor body (kPa);

[0111] n——number of anchor rods.

[0112] When calculating, n is set to 1, d g The value is 0.025m, L g The value is 3m, f b The value is 2.4MPa, K2 is 2.0, and the calculation results are as follows:

[0113] P3=(3×π×0.025×2.4×1000) / 2≈283kN.

[0114] In an optional implementation manner of this embodiment, refer to Figure 1 or Figure 2 The steps of laying the C30 concrete foundation 3 and setting the drainage assembly 110 so as to connect the C30 concrete foundation 3 with the road include:

[0115] A galvanized steel pipe 6 for accommodating pipelines is set on the C30 concrete foundation 3, and concrete is poured on the outside of the pipe. The galvanized steel pipe 6 is set on the side of the drainage component 110 away from the road.

[0116] Specifically: the galvanized steel pipe 6 is set on the C30 concrete foundation 3. The galvanized steel pipe 6 is preferably a φ110mm galvanized pipe, and the pre-supported quantity is four, which is used as a pipeline channel in the later stage.

[0117] Further, refer to Figure 1 or Figure 2 The steps of laying the C30 concrete foundation 3 and setting the drainage assembly 110 so as to connect the C30 concrete foundation 3 with the road include:

[0118] A curbstone 4 is provided on the concrete of the galvanized steel pipe 6 , and the curbstone 4 is provided on a side of the drainage component 110 away from the road.

[0119] Specifically: after the concrete of the galvanized steel pipe 6 is dried, a curbstone 4 is set. The curbstone 4 is set on the side of the drainage component 110 away from the road and abuts against the drainage component 110 to provide lateral support for the drainage component 110.

[0120] Further, refer to Figure 1 or Figure 2 The steps of laying the C30 concrete foundation 3 and setting the drainage assembly 110 so as to connect the C30 concrete foundation 3 with the road include:

[0121] A cement mortar layer 5 is provided at the bottom of the curb 4 .

[0122] Specifically, a cement mortar layer 5 is provided at the bottom of the curb 4 , that is, the cement mortar layer 5 is provided between the curb 4 and the concrete.

[0123] In an optional implementation manner of this embodiment, refer to Figure 1 or Figure 2 The steps of laying the C30 concrete foundation 3 and setting the drainage assembly 110 so as to connect the C30 concrete foundation 3 with the road include:

[0124] A delineator 7 is provided on the concrete of the galvanized steel pipe 6 , and the delineator 7 is provided on the side of the curb 4 away from the road.

[0125] Specifically, the delineator 7 is arranged on the side of the curb 4 away from the road, and preferably, the delineator 7 is arranged perpendicular to the ground and is distributed at intervals along the extension direction of the road.

[0126] In an optional implementation manner of this embodiment, refer to Figure 2 The steps of laying the C30 concrete foundation 3 and setting the drainage assembly 110 so as to connect the C30 concrete foundation 3 with the road include:

[0127] The drainage assembly 110 includes a ditch body 1101 ; the ditch body 1101 is fixed on the C30 concrete foundation 3 by concrete, and is covered with a ditch cover 1102 .

[0128] Specifically: the ditch body 1101 is preferably a U-shaped trough structure, and a ditch cover 1102 is added on top thereof, and the height of the ditch cover 1102 is lower than the height of the surface layer 120, so as to realize the road drainage function after the local structure of the slope is modified.

[0129] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other; the above embodiments in this specification are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that: it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some or all of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for transforming the local structure of the slope of a high-cut widening road section, characterized in that: The following steps are involved: Segmented notching is performed on the beam portion of the facing wall; Anchor rods (2) are installed, and reinforcing beams (1) are installed at the slots of the retaining wall, one end of the anchor rods (2) is connected to the reinforcing beam (1), and the other end is inserted into the slope for fixation; A plurality of anchor rods (2) are provided, and the spacing between adjacent anchor rods (2) is 1.5 meters, so that the reinforcement beam (1) supports the upper retaining wall; The slope ratio of the side slope is 1:0.5; The length of each anchor rod (2) is set to 3 meters, and the angle with the horizontal direction is 10°-11°, and the friction coefficient is 0.6, so that the pull-out resistance of the anchor rod is greater than the weight of the retaining wall, thereby allowing the reinforced beam (1) to support the retaining wall above it; Calculate the pullout component P' and the weight component G' of the retaining wall, and ensure that P' is greater than G'; P'=P×(cos(63.43°+10°)+sin(63.43°+10°) ×0.6)=105.6kN; G'=G×(cos(63.43°)-cos(63.43°) ×0.6)=96.6kN; P'> G'; Wherein, P is the pull-out resistance of the plurality of anchor rods (2), and G is the weight of the retaining wall; pouring concrete at the reinforced beam (1); After the concrete is dry, the slope and the retaining wall below the reinforcement beam (1) are excavated; A C30 concrete foundation (3) is laid and a drainage assembly (110) is provided, so that the C30 concrete foundation (3) is connected to the road.

2. The method for transforming the local structure of the slope of a high-cut widening road section according to claim 1 is characterized in that: The steps of installing anchor rods (2) and reinforcing beams (1) at the slots of the retaining wall, connecting one end of the anchor rods (2) to the reinforcing beams (1), and inserting the other end into the slope for fixation include: Calculate the pullout force P and the weight of the retaining wall G; P1=(0.0125×0.0125×π×400×1000) / 1.6≈122.72kN; P2=(3×π×0.05×550) / 2≈129.6kN; P3=(3×π×0.025×2.4×1000) / 2≈283kN; P=min(P1,P2,P3) ≈122.72kN; G=0.4×10×1.118×2300×10×10 -3 ×1.5≈154.3kN。 3. The method for transforming the local structure of the slope of a high-cut widening road section according to claim 1 is characterized in that: The steps of laying a C30 concrete foundation (3) and setting a drainage assembly (110) so as to connect the C30 concrete foundation (3) with the road include: A galvanized steel pipe (6) for accommodating pipelines is arranged on the C30 concrete foundation (3), and concrete is poured on the outside of the galvanized steel pipe (6), and the galvanized steel pipe (6) is arranged on a side of the drainage component (110) away from the road.

4. The method for transforming the local structure of the slope of a high-cut widening section of road according to claim 3 is characterized in that: The steps of laying a C30 concrete foundation (3) and setting a drainage assembly (110) so that the C30 concrete foundation (3) is connected to the road include: A curb stone (4) is provided on the concrete of the galvanized steel pipe (6), and the curb stone (4) is provided on a side of the drainage component (110) away from the road.

5. The method for transforming the local structure of the slope of a high-cut widening road section according to claim 4 is characterized in that: The steps of laying a C30 concrete foundation (3) and setting a drainage assembly (110) so that the C30 concrete foundation (3) is connected to the road include: A cement mortar layer (5) is provided at the bottom of the curb (4).

6. The method for transforming the local structure of the slope of a high-cut widening road section according to claim 4 is characterized in that: The steps of laying a C30 concrete foundation (3) and setting a drainage assembly (110) so as to connect the C30 concrete foundation (3) with the road include: A contour mark (7) is provided on the concrete of the galvanized steel pipe (6), and the contour mark (7) is provided on the side of the curb (4) away from the road.

7. The method for transforming the local structure of the slope of a high-cut widening road section according to claim 1 is characterized in that: The steps of laying a C30 concrete foundation (3) and setting a drainage assembly (110) so as to connect the C30 concrete foundation (3) with the road include: The drainage assembly (110) comprises a ditch body (1101); The ditch body (1101) is fixed on the C30 concrete foundation (3) through concrete, and covered with a ditch cover (1102).

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