CN114592400A - Structure for enhancing road surface drainage capacity by using movable ridge on zero-slope road section and implementation method - Google Patents

Abstract

The invention discloses a structure and an implementation method of using a moving road ridge to enhance the drainage capacity of a zero-slope road section, and mainly designs two moving road ridge structures for a zero-longitudinal-slope road section and a zero-cross-slope road section or a road section with small horizontal and vertical slopes. That is, the pavement structure of "W-shaped road ridge-road valley" is adopted in the zero longitudinal slope road section; the "inverted V-shaped road ridge-road valley" pavement structure is adopted in the zero-cross-slope road section or the road section with small horizontal and vertical slopes. The present invention can be applied to the structural design and construction of permeable pavement or impermeable pavement in zero-slope road sections, setting a "ridge-road valley" structure in one or several structural layers of the pavement, increasing the synthetic slope of the original design, so that the It can achieve better drainage effect, promote the timely drainage of the road surface in the zero-slope road section in the plain area, and effectively enhance the drainage capacity of the permeable road surface. The invention has the characteristics of simple design and convenient construction, and can effectively solve the problems that the road surface water in the zero-slope road section and the interlayer water are difficult to discharge.

Description

Structure and implementation method of using moving road ridge to enhance drainage capacity of pavement in zero-slope road section

technical field

The invention belongs to the technical field of permeable pavement structures, and in particular relates to a structure and an implementation method for enhancing drainage capacity with a moving road ridge in a zero-slope road section.

Background technique

In recent years, the construction of high-grade highways in my country has become more and more mature in rainwater management and control technology, and permeable pavements have been more and more popularized and applied. However, extreme weather such as typhoons and rainstorms often occur in the rainy areas of the southern plains, and the rainfall is much higher than the average level. Moreover, there are many sections of roads in the plains with small synthetic slopes, which are very unfavorable for the drainage of concentrated rainfall, which in turn affects the safety of driving. Significant impact.

In the design of permeable pavement, reasonable infiltration and drainage of surface rainwater is an important working method. However, the design of the structure combination of permeable pavement in the current specification "Code for Design of Highway Drainage" is only in the drainage road surface layer, base layer, sub-base and other levels. The thickness, structural combination, drainage ancillary facilities, etc. are required, but no pavement structure design requirements for the zero-slope road section are proposed. A large number of pavement damage investigation results show that the composite slope of the zero-slope road section is too small, so that the rainwater cannot be discharged in time. Therefore, how to improve the drainage capacity of the zero-slope road section is an urgent problem that needs to be solved in the drainage design of the special road section of the highway. Especially in the permeable asphalt pavement, the road surface water penetrates into the surface layer of the middle surface through the permeable asphalt upper layer. The situation that the accumulated water seeps into the road surface cannot be discharged in time, but promotes the occurrence of water damage and causes negative effects.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a structure and an implementation method for enhancing the drainage capacity with a moving road ridge in a zero-slope road section in view of the deficiencies of the prior art. The structure and implementation method of the present invention can be applied to the structural design and construction of permeable pavement or impermeable pavement in zero-slope road sections, setting a "ridge-road valley" structure in one or several structural layers of the pavement, increasing the original design In order to achieve better drainage effect, the road surface can be discharged in time when there is concentrated rainfall in the zero-slope road section in the plain area, and the drainage capacity of the permeable road surface can also be effectively enhanced. The invention has the characteristics of simple design and convenient construction, and can obviously improve the drainage efficiency of permeable or impermeable pavement, has good economy, and can effectively solve the problem of difficult drainage of road surface water and interlayer water in zero-slope road sections.

In order to achieve the above object, the present invention adopts the following technical solutions:

A structure in which a moving road ridge is used to enhance the drainage capacity of a zero-slope road section. Two moving road ridge structures are designed for a zero-longitudinal slope road section and a zero-cross-slope road section or a road section with small horizontal and vertical slopes. "W-shaped road ridge-road valley" pavement structure; "inverted V-shaped road ridge-road valley" pavement structure is adopted in the section with zero transverse slope or the section with small horizontal and vertical slopes;

The "W-shaped road ridge-road valley" pavement structure includes a first slope surface, a second slope surface, a third slope surface and a fourth slope surface; the first slope surface and the third slope surface are in the downslope direction, The second slope surface and the fourth slope surface are the upward slope direction;

The "inverted V-shaped road ridge-road valley" pavement structure includes a first road ridge line, a first downslope surface corresponding to the first road ridge line, an opposite road surface edge corresponding to the end point of the first road ridge line, and a second road ridge line. The uphill surface corresponding to the ridge line, the second road ridge line, the downhill surface corresponding to the second road ridge line, the opposite road edge corresponding to the end point of the second road ridge line, the uphill surface corresponding to the third road ridge line, and the third road ridge line. The third road ridge line, the downslope corresponding to the third road ridge line, the opposite road edge corresponding to the end point of the third road ridge line, the upslope corresponding to the end road ridge line, and the end road ridge line.

The present invention further illustrates that in the pavement structure of "W-shaped road ridge-road valley", a road valley I is formed between the first slope surface and the second slope surface, and the second slope surface and the third slope surface form a road valley I. A road ridge is formed between the surfaces, and a road valley II is formed between the third slope surface and the fourth slope surface (8), wherein the road ridge line and the road valley line are both perpendicular to the driving direction.

The present invention further illustrates that the "W-shaped road ridge-road valley" pavement structure is W-shaped in the longitudinal direction, and is provided with a lower layer, a middle surface layer and an upper layer that are sequentially laid on the original roadbed along the longitudinal direction, and the transverse slopes are maintained The upper layer is a permeable asphalt concrete surface layer or an impermeable asphalt concrete surface layer; the middle surface layer and the lower layer are both impermeable asphalt concrete surface layers.

The present invention further illustrates that the road ridge-road valley structure of the "W-shaped road ridge-road valley" pavement structure is arranged on the upper, middle and lower layers, or on the upper and middle surface layers, or on the upper layer, all of which are Controlled by the top elevation of the structural layer.

The present invention further illustrates that the "W-shaped road ridge-road valley" pavement structure is suitable for the adjustment of the pavement structure of the zero longitudinal slope road section. The length and quantity between the road ridge line and the road valley line can be adjusted according to the length of the zero longitudinal slope road section. make adjustments.

The present invention further illustrates that in the pavement structure of "inverted V-shaped road ridge-road valley", each road ridge line is located at a diagonal diagonal line along the driving direction, and the end point of the previous road ridge line is used as the next road ridge The starting point of the line, the direction of the upslope and the downslope are perpendicular to the direction of the ridge line.

Further, passing through the first road ridge line along the driving direction, there is a first downslope surface, each subsequent road ridge line corresponds to a respective upslope surface and a downslope surface, and the downslope surface of the previous road ridge line is the same as that of the previous road ridge line. The upslopes of the latter ridgeline meet, with a terminal upslope at the end ridgeline.

The present invention further illustrates that the two sides of the first road ridge line are respectively the original road surface and the first downslope corresponding to the first road ridge line, and the two sides of the end road ridge line are respectively the corresponding end road ridge line. The upslope surface and the original road surface; a road valley is formed between the first downslope surface corresponding to the first road ridge line and the upslope surface corresponding to the second road ridge line, and the downslope surface corresponding to the second road ridge line A road valley is formed between the upslope surfaces corresponding to the third road ridge line, and then a road valley is formed between the downslope surfaces and the upslope surfaces of two adjacent road ridge lines.

The present invention further illustrates that the "inverted V-shaped road ridge-road valley" pavement structure is an inverted V-shaped along the longitudinal diagonal direction, and includes a lower layer, a middle surface layer and an upper layer that are sequentially laid on the original roadbed along the longitudinal direction. The upper layer is a permeable asphalt concrete surface layer or an impermeable asphalt concrete surface layer; the middle surface layer and the lower layer are both impermeable asphalt concrete surface layers.

The present invention further illustrates that the road ridge-road valley structure of the "inverted V-shaped road ridge-road valley" pavement structure is arranged on the upper, middle and lower layers, or on the upper and middle surface layers, or on the upper layer, All are controlled by the top elevation of the structural layer.

The present invention further illustrates that the "inverted V-shaped road ridge-road valley" pavement structure is suitable for the adjustment of the pavement structure of the road section with zero cross slope or small horizontal and vertical slopes. The length and number of road ridge lines are determined according to the zero cross slope. Or the length of the road section with smaller horizontal and vertical slopes can be adjusted.

The present invention also provides an implementation method of the above-mentioned zero-slope road section using a moving road ridge to enhance the drainage capacity, which are respectively:

The implementation method of the "W-shaped road ridge-road valley" pavement structure includes the following steps:

1) Determine the longitudinal horizontal lengths of the first slope, the second slope, the third slope and the fourth slope and the slope of each slope according to the length of the zero-slope road section and the original longitudinal section design;

2) Keep the design elevations of the starting point of the first slope, the starting point of the third slope, and the end point of the fourth slope unchanged, and determine the design elevation of the end point of the first slope and the end point of the third slope according to the design slope calculation of each slope;

3) When the road ridge-road valley structure is set on the upper, middle and lower layers, keep the thickness of the upper layer and the middle surface layer the same as the original pavement design, calculate the thickness of the lower layer according to the new design elevation, and adjust the thickness of the lower layer to meet the Design elevation after adjusting the slope;

When the road ridge-road valley structure is set on the upper and middle surface layers, the thickness of the upper layer is kept the same as the original pavement design, and the thickness of the middle surface layer is adjusted to meet the design elevation requirements of the "W-shaped road ridge-road valley" pavement structure;

When the road ridge-road valley structure is set on the upper layer, the thickness of the upper layer can be adjusted to meet the design elevation requirements of the "W-shaped road ridge-road valley" pavement structure;

4) The "W-shaped ridge-road valley" pavement structure is controlled by the design elevation, and the cross slope remains unchanged, so the construction steps of asphalt concrete laying of each structural layer are consistent with the original pavement construction method, the elevation is adjusted, and each structural layer is divided into layers. Layer paving can be done;

The implementation method of the "inverted V-shaped road ridge-road valley" pavement structure includes the following steps:

1) According to the length of the zero-slope road section and the original horizontal and vertical section design, determine the length of the road section corresponding to each road ridge line and the number of road ridge lines to be set;

2) Keep the design elevation of the ridge line position unchanged, and reduce the design elevation at the edge of the road opposite the end of each ridge line to form an oblique slope perpendicular to the ridge line according to the slope requirements. The design elevation at the edge of the opposite road corresponding to the end point of the ridge line remains unchanged;

3) When the road ridge-road valley structure is set on the upper, middle and lower layers, keep the thickness of the upper layer and the middle surface layer the same as the original pavement design, calculate the thickness of the lower layer according to the new design elevation, and adjust the thickness of the lower layer to meet the Design elevation after adjusting the slope;

When the ridge-road valley structure is set on the upper and middle surface layers, keep the thickness of the upper layer the same as the original pavement design, calculate the thickness of the middle surface layer according to the new design elevation, and adjust the thickness of the middle surface layer to meet the requirements after adjusting the slope. design elevation;

When the road ridge-road valley structure is set on the upper layer, the thickness of the upper layer is calculated according to the new design elevation, and the thickness of the upper layer is adjusted to meet the design elevation after adjusting the slope;

4) The "inverted V-shaped ridge-road valley" pavement structure is controlled by the design elevation, so the construction steps of asphalt concrete laying of each structural layer are consistent with the original pavement construction method, the elevation is adjusted, and the layered paving of each structural layer is Can.

Advantages of the present invention:

(1) Good economy. Only in the zero-slope road section, the slope is adjusted by changing the thickness of the original surface layer, the change is not large, and the cost increase is not large.

(2) The construction is simple. To adjust the slope change by controlling the design elevation, it is only necessary to change the controlled elevation during pavement construction without additional construction means.

(3) The drainage effect is remarkable. The structure of the zero-slope road section has been changed, and the slope can be made to help the surface water or interlayer water drain quickly, avoiding water damage caused by water seepage retention. .

Description of drawings

FIG. 1 is a schematic diagram of a longitudinal slope of a road section with zero longitudinal slope using a “W-shaped ridge-road valley” pavement structure according to an embodiment of the present invention.

The marks in the figure respectively indicate: 1. The starting point of the first slope; 2. The first slope; 3. The end point of the first slope (ie road valley I); 4. The second slope; 5. The end point of the second slope (ie road ridge); 6, the third slope; 7, the end point of the third slope (ie road valley II); 8, the fourth slope; 9, the end point of the fourth slope.

FIG. 2 is a schematic design diagram of a road surface structure of “inverted V-shaped road ridge-road valley” in a zero-cross-slope road section according to another embodiment of the present invention.

The marks in the figure respectively indicate: 201, the first road ridge line; 202, the first downhill surface corresponding to the first road ridge line; 203, the opposite road edge corresponding to the end point of the first road ridge line; 204, the second road 205, the second road ridge line; 206, the downslope corresponding to the second road ridge line; 207, the opposite road edge corresponding to the end point of the second road ridge line; 208, the third road ridge 209, the third road ridge line; 210, the downslope corresponding to the third road ridge line; 211, the opposite road edge corresponding to the end point of the third road ridge line; 212, the end road ridge line corresponding 213, the end road ridge line; the direction of the arrow in the figure is the drainage direction.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Example 1:

A structure in which a moving road ridge is used to enhance the drainage capacity of a zero-slope road section, mainly for the zero-longitudinal slope road section and the zero-cross-slope road section or the road section with smaller horizontal and vertical slopes, two moving road ridge structures are designed, namely: The road section adopts the "W-shaped road ridge-road valley" pavement structure; the "inverted V-shaped road ridge-road valley" pavement structure is adopted in the road section with zero transverse slope or the road section with small horizontal and vertical slopes.

As shown in Figure 1, the "W-shaped road ridge-road valley" pavement structure includes a first slope surface 2, a second slope surface 4, a third slope surface 6 and a fourth slope surface 8; the first slope surface 2 and the third slope surface 6 are in the downhill direction, the second slope surface 4 and the fourth slope surface 8 are in the uphill direction; a road valley I3 is formed between the first slope surface 2 and the second slope surface 4 , a road ridge 5 is formed between the second slope surface 4 and the third slope surface 6, and a road valley II7 is formed between the third slope surface 6 and the fourth slope surface 8, wherein the road ridge line and the Road valley lines are perpendicular to the driving direction.

The "W-shaped road ridge-road valley" pavement structure is W-shaped in the longitudinal direction, and is provided with a lower layer, a middle surface layer and an upper layer laid on the original roadbed in sequence along the longitudinal direction, and the transverse slope remains unchanged; The upper layer is a permeable asphalt concrete surface layer or an impermeable asphalt concrete surface layer; the middle surface layer and the lower layer are both impermeable asphalt concrete surface layers. The road ridge-road valley structure of the "W-shaped road ridge-road valley" pavement structure is arranged on the upper, middle and lower layers, or on the upper and middle surface layers, or on the upper layer, all of which pass through the top surface of the structural layer. Elevation control.

The "W-shaped road ridge-road valley" pavement structure is suitable for the adjustment of the pavement structure of the zero longitudinal slope road section. The length and quantity between the road ridge line and the road valley line can be adjusted according to the length of the zero longitudinal slope road section.

The implementation method of the "W-shaped road ridge-road valley" pavement structure includes the following steps:

1) Determine the longitudinal horizontal lengths of the first slope surface (2), the second slope surface (4), the third slope surface (6), and the fourth slope surface (8) according to the length of the zero-slope road section and the original longitudinal section design. the slope of the slope;

2) Keep the design elevations of the first slope starting point (1), the third slope starting point (5), and the fourth slope ending point (9) unchanged, and determine the first slope end point (3) according to the design slope calculation of each slope. ), the design elevation of the third slope end point (7);

3) When the road ridge-road valley structure is set on the upper, middle and lower layers, keep the thickness of the upper layer and the middle surface layer the same as the original pavement design, calculate the thickness of the lower layer according to the new design elevation, and adjust the thickness of the lower layer to meet the Design elevation after adjusting the slope;

When the road ridge-road valley structure is set on the upper and middle surface layers, the thickness of the upper layer is kept the same as the original pavement design, and the thickness of the middle surface layer is adjusted to meet the design elevation requirements of the "W-shaped road ridge-road valley" pavement structure;

When the road ridge-road valley structure is set on the upper layer, the thickness of the upper layer can be adjusted to meet the design elevation requirements of the "W-shaped road ridge-road valley" pavement structure;

4) The "W-shaped ridge-road valley" pavement structure is controlled by the design elevation, and the cross slope remains unchanged, so the construction steps of asphalt concrete laying of each structural layer are consistent with the original pavement construction method, the elevation is adjusted, and each structural layer is divided into layers. Layer paving can be done;

As shown in Fig. 2, the "inverted V-shaped road ridge-road valley" pavement structure includes a first road ridge line 201, a first downslope surface 202 corresponding to the first road ridge line, and a first road ridge line corresponding to the end point. The opposite road edge 203, the upslope 204 corresponding to the second ridge line, the second ridge line 205, the downslope 206 corresponding to the second ridge line, and the opposite road edge 207 corresponding to the end point of the second ridge line , the upslope surface 208 corresponding to the third road ridge line, the third road ridge line 209, the downslope surface 210 corresponding to the third road ridge line, the opposite road edge 211 corresponding to the end point of the third road ridge line, and the end road ridge line Corresponding uphill surface 212 and end road ridge line 213 .

In the "inverted V-shaped ridge-road valley" pavement structure, each ridge line is located at the diagonal diagonal line along the driving direction, and the end point of the previous ridge line is used as the starting point of the next ridge line. The directions of the slope and downslope are perpendicular to the direction of the ridge line.

The two sides of the first road ridge line 201 are respectively the original road surface and the first downslope surface 202 corresponding to the first road ridge line, and the two sides of the end road ridge line 213 are respectively the uphill corresponding to the end road ridge line. A road valley is formed between the first downslope surface 202 corresponding to the first road ridge line and the upslope surface 204 corresponding to the second road ridge line, and the downslope corresponding to the second road ridge line A road valley is formed between the surface 206 and the upslope surface 208 corresponding to the third road ridge line, and then a road valley is formed between the downslope surface and the upslope surface of two adjacent road ridge lines in turn.

The "inverted V-shaped road ridge-road valley" pavement structure is an inverted V-shaped along the longitudinal diagonal direction, and includes a lower layer, a middle surface layer and an upper layer that are sequentially laid on the original roadbed along the longitudinal direction; The layer is a permeable asphalt concrete surface layer or an impermeable asphalt concrete surface layer; the middle surface layer and the lower layer are both impermeable asphalt concrete surface layers. The road ridge-road valley structure of the "inverted V-shaped road ridge-road valley" pavement structure is arranged on the upper, middle and lower layers, or on the upper and middle surface layers, or on the upper layer, all of which pass through the top of the structural layer. Face elevation control.

The "inverted V-shaped road ridge-road valley" pavement structure is suitable for the adjustment of the pavement structure of the road section with zero cross slope or small horizontal and vertical slopes. The length of all smaller sections can be adjusted.

The implementation method of the "inverted V-shaped road ridge-road valley" pavement structure includes the following steps:

1) According to the length of the zero-slope road section and the original horizontal and vertical section design, determine the length of the road section corresponding to each road ridge line and the number of road ridge lines to be set;

2) Keep the design elevation of the ridge line position unchanged, and reduce the design elevation at the edge of the road opposite the end of each ridge line to form an oblique slope perpendicular to the ridge line according to the slope requirements. The design elevation at the edge of the opposite road corresponding to the end point of the ridge line remains unchanged;

3) When the road ridge-road valley structure is set on the upper, middle and lower layers, keep the thickness of the upper layer and the middle surface layer the same as the original pavement design, calculate the thickness of the lower layer according to the new design elevation, and adjust the thickness of the lower layer to meet the Design elevation after adjusting the slope;

When the ridge-road valley structure is set on the upper and middle surface layers, keep the thickness of the upper layer the same as the original pavement design, calculate the thickness of the middle surface layer according to the new design elevation, and adjust the thickness of the middle surface layer to meet the requirements after adjusting the slope. design elevation;

When the road ridge-road valley structure is set on the upper layer, the thickness of the upper layer is calculated according to the new design elevation, and the thickness of the upper layer is adjusted to meet the design elevation after adjusting the slope;

4) The "inverted V-shaped road ridge-road valley" pavement structure is controlled by the design elevation, so the construction steps of the asphalt concrete laying of each structural layer are consistent with the original pavement construction method, the elevation is adjusted, and the layered paving of each structural layer is Can.

Application example 1:

Referring to Figure 1, a schematic diagram of the vertical section elevation of a "W"-shaped pavement structure in which a moving road ridge is used to enhance the drainage capacity of a zero longitudinal slope section is given, including the first slope surface 2, the second slope surface 4, and the third slope surface. Face 6, fourth slope 8, road valley I3, road ridge 5, road valley II7, the starting point 1 of the first slope surface is connected with the original pavement longitudinal section design, and the fourth slope surface end point 9 is connected with the original pavement longitudinal section design.

The specific parameter setting process is: determine the specific position of the zero longitudinal slope section, select four continuous slopes according to the principle of 100m interval, and ensure that the design elevation of the first slope starting point 1, road ridge 5, and the fourth slope ending point 9 are not Change, lower the design elevation of road valley I3 and road valley II7 to form a longitudinal "W" type pavement structure. The thickness of the surface layer remains unchanged, and the thickness of the underlying layer is calculated according to the design elevation after the slope change.

In this example, after determining the design elevation of the “W” type pavement structure and the thickness of the underlying layer in the zero-slope road section, it is constructed together with the road surface of the connected road section. The measured elevation is controlled according to the design elevation of the new structure, and finally the steel wire is drawn and directly spread in layers. Pave compaction.

When rainfall occurs, the rainwater converges toward the road valley under the action of the longitudinal slope, and is discharged to the shoulder drainage ditch in combination with the lateral slope of the original road surface, which enhances the drainage performance of the zero-slope road section, and the pavement structure is convenient for construction and low in cost.

In the present invention, the number of slopes can be adjusted according to the length of the zero-slope road section. According to the practical experience of the applicant, it has a certain influence on the driving comfort when the number of slopes is increased to 6. Therefore, it is more reasonable to use 4 drainage slopes, considering The length of the zero-slope road section can be adjusted to the longitudinal horizontal length and slope of each slope.

Application example 2:

Referring to FIG. 2 , a schematic diagram of an “inverted V” pavement structure design in which a moving road ridge is used to enhance drainage capacity in a specific form of zero-cross-slope road section is given, including the first road ridge line 1 and the first road ridge line corresponding to the first road ridge line. Downslope 2, the opposite road edge corresponding to the end point of the first ridge line 3, the upslope 4 corresponding to the second ridge line, the second ridge line 5, the downslope 6 corresponding to the second ridge line, The edge of the opposite road corresponding to the end point of the second ridge line 7, the upslope 8 corresponding to the third ridge line, the third ridge line 9, the downslope 10 corresponding to the third ridge line, and the third ridge line The opposite road edge 11 corresponding to the end point, the upslope 12 corresponding to the end ridge line, and the end ridge line 13 . The outer side of the first road ridge line and the outer side of the end road ridge line are directly connected to the original road surface.

The specific parameter setting process is to determine the specific position of the zero-cross-slope road section, set the length of the road section where each road ridge line is located at 100m, and ensure that the first road ridge line 1, the second road ridge line 5, and the third road ridge line 9 , The design elevation of the starting point and the end point of the end road ridge line 13 remains unchanged, lower the edge of the opposite road corresponding to the end point of the first road ridge line 3, the opposite road edge corresponding to the end point of the second road ridge line 7, and the end point of the third road ridge line The corresponding design elevation 11 at the edge of the opposite road forms an "inverted V"-shaped pavement structure on both sides of each road ridge line. The lower layer, in which the thickness of the upper layer and the middle surface layer is unchanged, the thickness of the lower layer is calculated according to the design elevation after the variable slope.

In this example, after determining the design elevation of the “inverted V” pavement structure and the thickness of the underlying layer in the zero-slope road section, it is constructed together with the pavement of the connected road section. Paving compaction.

When rainfall occurs, the rainwater converges towards the road valley under the action of the oblique slope. Since the slope is in the direction of the vertical road ridge line, part of the accumulated water has been discharged to the shoulder drainage ditch on the way to the convergence, and the remaining accumulated water is discharged at the road valley. , the drainage performance of the zero-slope road section is strengthened, and the pavement structure is convenient for construction and low in cost.

In the present invention, the number of road ridge lines can be adjusted according to the length of the zero-slope road section. According to the practical experience of the applicant, the number of road ridge lines has a certain influence on the driving comfort when the number of road ridge lines is increased to 6. Therefore, it is more reasonable to use 4 drainage slopes. , considering the length of the zero-slope road section, the length of the road section where each road ridge line is located and the slope of the road valley can be adjusted.

Obviously, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other different forms of changes or changes can also be made on the basis of the above description; it is not necessary and impossible to list all the implementations here; and it is obvious that it is derived from this The changes or modifications are still within the protection scope of the present invention.

Claims (11)

1. the structure of a zero-slope road section with a moving road ridge enhancing drainage capacity, mainly for the zero longitudinal slope road section and the zero cross-slope road section or the horizontal and vertical slopes are both smaller road sections design two kinds of mobile road ridge structures, it is characterized in that: The "W-shaped ridge-road valley" pavement structure is adopted in the road section with zero longitudinal slope; the pavement structure of "inverted V-shaped road ridge-road valley" is adopted in the road section with zero transverse slope or the section with small horizontal and vertical slopes; The "W-shaped road ridge-road valley" pavement structure includes a first slope (2), a second slope (4), a third slope (6) and a fourth slope (8); the first slope The slope surface (2) and the third slope surface (6) are the downward slope direction, and the second slope surface (4) and the fourth slope surface (8) are the upward slope direction; The "inverted V-shaped road ridge-road valley" pavement structure includes a first road ridge line (201), a first downslope surface (202) corresponding to the first road ridge line, and an opposite road surface corresponding to the end point of the first road ridge line The edge (203), the uphill surface corresponding to the second road ridge line (204), the second road ridge line (205), the downslope surface corresponding to the second road ridge line (206), and the end point corresponding to the second road ridge line The opposite road edge (207), the upslope surface corresponding to the third road ridge line (208), the third road ridge line (209), the downslope surface corresponding to the third road ridge line (210), the third road ridge line The opposite road edge (211) corresponding to the end point of the line, the upslope surface (212) corresponding to the end ridge line, and the end ridge line (213). 2. The structure for enhancing drainage capacity with moving road ridges in zero-slope road sections according to claim 1, characterized in that: in the "W-shaped road ridge-road valley" pavement structure, the first slope (2) and A road valley I (3) is formed between the second slope surfaces (4), and a road ridge (5) is formed between the second slope surface (4) and the third slope surface (6). A road valley II (7) is formed between the slope surface (6) and the fourth slope surface (8), wherein the road ridge line and the road valley line are both perpendicular to the driving direction. 3. The structure for enhancing drainage capacity with moving road ridges in zero-slope road sections according to claim 2, characterized in that: the "W-shaped road ridge-road valley" pavement structure is longitudinally W-shaped, and is provided with longitudinally The lower layer, the middle surface layer and the upper layer are laid in sequence on the original roadbed, and the transverse slope remains unchanged; the upper layer is a permeable asphalt concrete surface layer or an impermeable asphalt concrete surface layer; the middle surface layer and the lower layer are All are impermeable asphalt concrete surface. 4. The structure for enhancing drainage capacity with moving road ridges in zero-slope road sections according to claim 3, characterized in that: the road ridge-road valley structure of the "W-shaped road ridge-road valley" pavement structure is arranged on the top, The middle and lower layers, or set on the upper and middle surface layers, or on the upper layer, are controlled by the top elevation of the structural layer. 5. The structure for enhancing drainage capacity by moving road ridges in zero-slope road sections according to claim 4, characterized in that: the "W-shaped road ridge-road valley" pavement structure is suitable for the adjustment of the pavement structure of the zero-longitudinal-slope road section, The length and quantity between the road ridge line and the road valley line can be adjusted according to the length of the zero longitudinal slope section. 6. The structure for enhancing drainage capacity with moving road ridges in a zero-slope road section according to claim 1, characterized in that: in the pavement structure of "inverted V-shaped road ridge-road valley", each road ridge line is located along the road The direction is inclined to the diagonal position, the end point of the previous ridge line is used as the starting point of the next ridge line, and the directions of the upslope and downslope are perpendicular to the direction of the ridge line. 7. The structure for enhancing drainage capacity with a moving road ridge in a zero-slope road section according to claim 6, wherein the two sides of the first road ridge line (201) correspond to the original road surface and the first road ridge line respectively. The first downslope surface (202) of the end road ridge line (213) is respectively the upslope surface (212) corresponding to the end road ridge line and the original road surface; the first road ridge line corresponding to the first road ridge line A road valley is formed between the lower slope surface (202) and the upper slope surface (204) corresponding to the second road ridge line, and the downward slope surface (206) corresponding to the second road ridge line and the third road ridge line corresponding to the road valley are formed. A road valley is formed between the upslope surfaces (208), and then a road valley is formed between the downslope surfaces and the upslope surfaces of two adjacent road ridge lines in sequence. 8. The structure for enhancing drainage capacity with moving road ridges in zero-slope road sections according to claim 1, 6 or 7, characterized in that: the "inverted V-shaped road ridge-road valley" pavement structure is along the longitudinal diagonal direction It is in an inverted V shape, including a lower layer, a middle surface layer and an upper layer that are sequentially laid on the original roadbed along the longitudinal direction; the upper layer is a permeable asphalt concrete surface layer or an impermeable asphalt concrete surface layer; the middle surface layer And the underlying layer are impermeable asphalt concrete surface. 9. The structure for enhancing drainage capacity with moving road ridges in zero-slope road sections according to claim 8, wherein the road ridge-road valley structure of the "inverted V-shaped road ridge-road valley" pavement structure is arranged on the upper , middle and lower layers, or set on the upper and middle layers, or on the upper layer, are controlled by the top elevation of the structure layer. 10. The structure for enhancing drainage capacity with moving road ridges in zero-slope road sections according to claim 9, characterized in that: the "inverted V-shaped road ridge-road valley" pavement structure is suitable for zero transverse slope or transverse and longitudinal slopes The pavement structure adjustment of all smaller road sections, the length and number of road ridge lines, can be adjusted according to the length of the road section with zero transverse slope or smaller transverse and longitudinal slopes. 11. A method for implementing the structure of the zero-slope road section as claimed in claim 1-10, wherein: The implementation method of the "W-shaped road ridge-road valley" pavement structure includes the following steps: 1) Determine the longitudinal horizontal lengths of the first slope surface (2), the second slope surface (4), the third slope surface (6), and the fourth slope surface (8) according to the length of the zero-slope road section and the original longitudinal section design. the slope of the slope; 2) Keep the design elevations of the first slope starting point (1), the third slope starting point (5), and the fourth slope ending point (9) unchanged, and determine the first slope end point (3) according to the design slope calculation of each slope. ), the design elevation of the third slope end point (7); 3) When the road ridge-road valley structure is set on the upper, middle and lower layers, keep the thickness of the upper layer and the middle surface layer the same as the original pavement design, calculate the thickness of the lower layer according to the new design elevation, and adjust the thickness of the lower layer to meet the Design elevation after adjusting the slope; When the road ridge-road valley structure is set on the upper and middle surface layers, the thickness of the upper layer is kept the same as the original pavement design, and the thickness of the middle surface layer is adjusted to meet the design elevation requirements of the "W-shaped road ridge-road valley" pavement structure; When the road ridge-road valley structure is set on the upper layer, the thickness of the upper layer can be adjusted to meet the design elevation requirements of the "W-shaped road ridge-road valley" pavement structure; 4) The "W-shaped ridge-road valley" pavement structure is controlled by the design elevation, and the cross slope remains unchanged, so the construction steps of asphalt concrete laying of each structural layer are consistent with the original pavement construction method, the elevation is adjusted, and each structural layer is divided into layers. Layer paving can be done; The implementation method of the "inverted V-shaped road ridge-road valley" pavement structure comprises the following steps: 1) According to the length of the zero-slope road section and the original horizontal and vertical section design, determine the length of the road section corresponding to each road ridge line and the number of road ridge lines to be set; 2) Keep the design elevation of the ridge line position unchanged, and reduce the design elevation at the edge of the road opposite the end of each ridge line to form an oblique slope perpendicular to the ridge line according to the slope requirements. The design elevation at the edge of the opposite road corresponding to the end point of the ridge line remains unchanged; 3) When the road ridge-road valley structure is set on the upper, middle and lower layers, keep the thickness of the upper layer and the middle surface layer the same as the original pavement design, calculate the thickness of the lower layer according to the new design elevation, and adjust the thickness of the lower layer to meet the Design elevation after adjusting the slope; When the ridge-road valley structure is set on the upper and middle surface layers, keep the thickness of the upper layer the same as the original pavement design, calculate the thickness of the middle surface layer according to the new design elevation, and adjust the thickness of the middle surface layer to meet the requirements after adjusting the slope. design elevation; When the road ridge-road valley structure is set on the upper layer, the thickness of the upper layer is calculated according to the new design elevation, and the thickness of the upper layer is adjusted to meet the design elevation after adjusting the slope; 4) The "inverted V-shaped road ridge-road valley" pavement structure is controlled by the design elevation, so the construction steps of the asphalt concrete laying of each structural layer are consistent with the original pavement construction method, the elevation is adjusted, and the layered paving of each structural layer is Can.

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