Multi-slope control device in zigzag street ditch construction

Abstract

The utility model discloses a multi-slope control device in zigzag street ditch construction, which comprises a frame, the cross section of the frame in the left-right direction is E-shaped, the E-shaped frame is provided with a top edge, a left vertical edge, a right vertical edge and a middle vertical edge, the middle vertical edge and the right vertical edge enclose a translation sliding positioning groove, and the translation sliding positioning groove and a curbstone of a road are used for covering the middle upper part of the curbstone; the left vertical edge comprises a left front vertical edge and a left rear vertical edge; a longitudinal slope adjusting structure is connected between the left front vertical edge and the left rear vertical edge, is in sliding connection with a cross slope adjusting structure, and is used for restraining the gradient of the cross slope adjusting structure when the cross slope adjusting structure moves back and forth; the cross slope adjusting structure is used for controlling the cross slope gradient of the mortar leveling layer through the inclination angle of the cross slope adjusting structure and controlling the longitudinal slope gradient of the mortar leveling layer through the front-back moving gradient borne by the longitudinal slope adjusting structure, and the top face of the mortar leveling layer is flattened to the preset longitudinal slope gradient and the preset cross slope gradient at a time.

Description

Technical Field

[0001] The utility model relates to the field of municipal road construction, and particularly relates to a multi-surface slope control device and method in the construction of a sawtooth street gutter. Background Technique

[0002] When the longitudinal slope of a road is less than 0.3%, it means that the slope of the road surface is very gentle, resulting in weak water flow power and insufficient drainage capacity. The following problems may occur:

[0003] Water accumulation and retention: Since the slope is not sufficient to promote the rapid longitudinal flow of water, rainwater may accumulate on the road surface, forming puddles or water accumulation areas.

[0004] Pavement damage: Long-term water accumulation will penetrate into the roadbed, resulting in damage to the pavement structure, such as pavement settlement, cracking, etc., shortening the service life of the road.

[0005] Hidden dangers to driving safety: Water accumulation may lead to the deterioration of driving conditions and increase the risk of traffic accidents. The reflection on the water surface will also affect the driver's line of sight, and the water accumulation area is prone to cause vehicle skidding.

[0006] Inconvenience to pedestrians: Water accumulation will affect the use of sidewalks and crosswalk facilities. Pedestrians may be splashed with water or need to take a detour when passing through, causing inconvenience.

[0007] Environmental and sanitation problems: Water accumulation may also lead to sewage retention, becoming a breeding ground for mosquitoes, bringing environmental and public health problems.

[0008] Therefore, in order to ensure the drainage efficiency and service life of the road and improve the safety of driving and pedestrians, especially on roads with a longitudinal slope less than 0.3% in urban roads, it is necessary to achieve effective longitudinal drainage through the design of reasonable drainage facilities such as sawtooth street gutters.

[0009] When using a sawtooth street gutter, under the condition of keeping the top surface of the curb parallel to the longitudinal slope design line of the road center line, alternately change the height between the top surface line of the curb and the flat stone (or road surface), that is, alternately change the height of the curb. Set a rainwater inlet at the lowest point, and magnify the cross slope of the road surface at the inlet to reduce the cross slope at the water dividing point between two inlets, so that the longitudinal slope of the flat stones on both sides of the carriageway changes with the changes in the elevation of the inlet and the water dividing point, thereby making the longitudinal slope line of the street gutter form a sawtooth shape.

[0010] In the utility model, the width direction of the road is the left-right direction, the length direction of the road is the front-back direction, the lowering direction of the road is the forward direction, and the direction pointing to the road center line is the inward direction.

[0011] The serrated street gutter is serrated in the left and right viewing directions. Curb stones and flat stones are designed on both sides of the road. The curb stones are located on the outside of the flat stones and are adjacent to the flat stones. The top surface of the curb stones is horizontal, and the top surface of the flat stones is flush with the road surface and is consistent with the road slope in the left and right directions and the front and back directions. The slope is designed to be consistent with the road slope. The slope in the road width direction is called the cross slope, and the slope in the road length direction is called the cross slope.

[0012] The vertical structural layers of the road are: the bottom is the foundation layer, i.e. the road structure layer, on which a concrete cushion layer is laid, which provides a solid and stable surface; a mortar leveling layer is arranged on top of the concrete cushion layer, and a pavement layer is arranged on top of the mortar leveling layer.

[0013] In a zigzag street ditch, although the slope of the pavement layer needs to be controlled in the end, the slope of the mortar leveling layer needs to be controlled first. During construction, the longitudinal and transverse slopes of the mortar leveling layer need to be accurately controlled to provide a basis for the slope of the pavement layer (including the slope of the top surface of the flat stone). After the flat stone is installed on the mortar leveling layer with a controlled slope, the slope of the top surface of the flat stone naturally meets the requirements of the design target.

[0014] The utility model aims to achieve the goal of controlling the slope of the mortar leveling layer at the flat stone so that the longitudinal slope and the transverse slope of the top surface of the flat stone meet the design target.

[0015] Since it is necessary to control both the longitudinal slope and the transverse slope, the conventional straightedge + feeler gauge is often used in the prior art. It is necessary to calculate the corresponding slope based on the transverse and longitudinal slopes given by the design, the height difference between the low point and the high point, and the distance between the two points. The steps are cumbersome, and it is difficult to complete the slope control in both the longitudinal and transverse directions in one operation. It is necessary to measure and calculate the transverse and longitudinal slopes twice, respectively. The overall construction is difficult and the construction efficiency is low.

[0016] If the line method is used for slope control, since the horizontal and vertical slopes of the flat stone are different, both the inner and outer edges need to be controlled. When placing two control lines, the flat stone will inevitably touch the control lines during the lowering process, affecting the actual construction accuracy.

[0017] In addition, the existing slope control operation has a fluctuation phenomenon that is unique to manual operations, that is, the slope control is usually not completely consistent with the designed slope target (there is human error).

[0018] The construction of zigzag street gutters has relatively high requirements for the transverse and longitudinal slopes. If the slope is not well controlled, water accumulation on the road will easily occur and its main function will fail. Utility Model Content

[0019] The purpose of the present utility model is to provide a multi-surface slope control device for the construction of serrated street gutters, which solves the technical problems of controlling the longitudinal slope and cross slope of the curbstone without a complex measurement control process and achieving one-time control, and at the same time avoids the phenomenon of artificial errors in slope control during manual operation.

[0020] To achieve the above object, the present utility model discloses a multi-surface slope control device for the construction of serrated street gutters. The left-right direction is the width direction of the road, the front-back direction is the length direction of the road, and the forward direction is the direction in which the road descends.

[0021] It includes a frame. The cross-section of the frame in the left-right direction is in an E shape, and the opening of the E-shaped frame faces downward. The E-shaped frame has a top edge, a left vertical edge, a right vertical edge, and a middle vertical edge. A translation sliding positioning groove with an opening downward is formed between the middle vertical edge and the right vertical edge. The translation sliding positioning groove matches the side stone of the road and is used to cover the upper middle part of the side stone to keep the top edge of the frame in a horizontal state. The left vertical edge includes a left front vertical edge and a left rear vertical edge.

[0022] A longitudinal slope adjustment structure is connected between the left front vertical edge and the left rear vertical edge. The longitudinal slope adjustment structure is slidably connected with a cross slope adjustment structure. The longitudinal slope adjustment structure is used to restrict the slope when the cross slope adjustment structure moves back and forth. The cross slope adjustment structure is used to control the cross slope of the mortar leveling layer through its own inclination angle and control the longitudinal slope of the mortar leveling layer through the forward and backward movement slope borne from the longitudinal slope adjustment structure, so as to achieve one-time leveling of the top surface of the mortar leveling layer to a predetermined longitudinal slope and cross slope.

[0023] The longitudinal slope adjustment structure is:

[0024] The length of the left rear vertical edge is shorter than that of the left front vertical edge. A rear telescopic ruler is connected downward to the left rear vertical edge, and a front telescopic ruler is connected downward to the left front vertical edge. A longitudinal slope adjustment beam is connected between the bottom ends of the rear telescopic ruler and the front telescopic ruler. The longitudinal slope adjustment beam is bolted to both the rear telescopic ruler and the front telescopic ruler. The forward and backward inclination angle of the longitudinal slope adjustment beam is consistent with the predetermined longitudinal slope.

[0025] The cross slope adjustment structure is:

[0026] The cross slope adjustment structure includes a sliding block. An inclined sliding positioning groove with an opening downward is provided at the bottom of the sliding block. The sliding block is slidably clamped on the longitudinal slope adjustment beam through the inclined sliding positioning groove. A protractor structure is fixedly connected to the top of the sliding block. The origin part of the protractor structure is bolted with an inclined scraper. The left-right inclination angle of the scraper is consistent with the predetermined cross slope.

[0027] The inner surface of the top wall of the translation sliding positioning groove is installed with an upper roller, and the upper roller is in rolling press contact with the top surface of the curbstone; the right inner wall of the translation sliding positioning groove is installed with a right roller, and the right roller is in rolling press contact with the right surface of the curbstone; the left inner wall of the translation sliding positioning groove is installed with a left roller, and the left roller is in rolling press contact with the left surface of the curbstone;

[0028] The cross-section of the scraper is L-shaped.

[0029] The utility model has the following advantages:

[0030] By adopting the structure of the utility model, the front and back slopes of the mortar leveling layer can be simply controlled by the longitudinal slope adjusting structure, and the cross slope of the mortar leveling layer can be controlled by the structure of the cross slope adjusting structure itself. The multi-surface slope control device in the construction of the serrated street gutter can be adjusted twice separately before construction according to the slopes in two directions, without complicated measurement and calculation, which is convenient for adjustment. Since

[0031] When the cross slope adjusting structure moves forward and backward along the longitudinal slope adjusting structure, it naturally inherits the front and back slopes of the longitudinal slope adjusting structure. Therefore, the cross slope adjusting structure can accurately control the longitudinal slope and cross slope of the mortar leveling layer simultaneously during the forward and backward movement.

[0032] The settings of the upper roller, left roller and right roller convert the sliding friction between the translation sliding positioning groove and the top surface of the curbstone into rolling friction, which not only saves manpower when moving along the curbstone, but also reduces wear during use and prolongs the service life of the utility model.

[0033] The cross-section of the scraper is L-shaped. When scraping the redundant amount on the upper layer of the mortar leveling layer through the bottom plate in the L-shape of the scraper, the redundant amount (mortar material) can be blocked by the vertical plate in the L-shape of the scraper, so that the scraped mortar material is pushed forward and will not fall onto the mortar leveling layer with the slope already controlled behind the scraper. The forward direction of the construction of the utility model is the downhill direction, which is also beneficial for the scraped mortar material to fall forward without affecting the mortar leveling layer with the slope already controlled behind.

[0034] The multi-surface slope control method of the utility model is very simple. Only by sliding the sliding block from back to front to the front telescopic ruler, the front and back slopes (longitudinal slope) and left and right slopes (cross slope) of the mortar leveling layer can be controlled simultaneously, which improves the efficiency of slope control compared with the past. Not only the actual operation is simple, but also there is no complicated calculation work before the actual slope control operation (sliding the sliding block back and forth). The cross slope control does not require calculation, only one angle measurement is needed; the longitudinal slope control only needs to calculate the product of two numbers (L×0.N%), which is greatly simplified compared with the past. The utility model reduces the knowledge requirements for construction workers and greatly reduces the workload of slope control construction. Description of the Drawings

[0035] Figure 1 It is a schematic structural view of the present utility model installed on a roadside curbstone (the sliding block and the angle measuring structure are omitted).

[0036] Figure 2 It is a schematic side view of the connection between the left front vertical side and the left rear vertical side and the longitudinal slope adjusting beam.

[0037] Figure 3 It is a schematic structural view of the cross slope adjusting structure.

[0038] Figure 4 It is a left view of the cross slope scraper. Specific embodiments

[0039] In the present utility model, the road width direction is the left - right direction, i.e., the transverse direction, the road length direction is the front - rear direction, i.e., the longitudinal direction, and the road descending direction is the forward direction.

[0040] As Figures 1 to 4 shown, the present utility model provides a multi - surface slope control device for the construction of a saw - toothed street gutter, including a frame. The cross - section of the frame in the left - right direction is in an E - shape, the opening of the E - shaped frame faces downward. The E - shaped frame has a top edge 1, a left vertical edge 2, a right vertical edge 3, and a middle vertical edge 4. A translation sliding positioning groove 5 with an opening downward is formed between the middle vertical edge 4 and the right vertical edge 3 (or the left vertical edge 2). The translation sliding positioning groove 5 matches with the roadside curbstone 6 of the road and is used to cover the upper - middle part of the curbstone 6 to keep the top edge 1 of the frame in a horizontal state; the left vertical edge 2 includes a left front vertical edge 21 and a left rear vertical edge 22;

[0041] A longitudinal slope adjusting structure is connected between the left front vertical edge 21 and the left rear vertical edge 22. The longitudinal slope adjusting structure is slidably connected with a cross - slope adjusting structure. The longitudinal slope adjusting structure is used to restrict the slope when the cross - slope adjusting structure moves back and forth. The cross - slope adjusting structure is used to control the cross - slope of the mortar leveling layer through its own inclination angle and control the longitudinal slope of the mortar leveling layer through the forward - backward movement slope inherited from the longitudinal slope adjusting structure, so as to achieve the one - time leveling of the top surface of the mortar leveling layer to a predetermined longitudinal slope and cross - slope.

[0042] By adopting the structure of the present utility model, the front - rear slope of the mortar leveling layer can be simply controlled by the longitudinal slope adjusting structure, and the cross - slope of the mortar leveling layer can be controlled by the structure of the cross - slope adjusting structure itself. Before construction, the multi - surface slope control device for the construction of the saw - toothed street gutter can be adjusted twice in two directions respectively, without complex measurement and calculation, which is convenient for adjustment. Since

[0043] when the cross - slope adjusting structure moves back and forth along the longitudinal slope adjusting structure, it naturally inherits the front - rear slope of the longitudinal slope adjusting structure. Therefore, the cross - slope adjusting structure can accurately control the longitudinal slope and cross - slope of the mortar leveling layer simultaneously during the forward - backward movement.

[0044] The longitudinal slope adjusting structure is:

[0045] The length of the left rear vertical side 22 is shorter than that of the left front vertical side 21; a rear telescopic ruler 9 is connected downward to the left rear vertical side 22, and a front telescopic ruler 10 is connected downward to the left front vertical side 21; a longitudinal slope adjusting beam 11 is connected between the bottom ends of the rear telescopic ruler 9 and the front telescopic ruler 10. The longitudinal slope adjusting beam 11 is bolted to both the rear telescopic ruler 9 and the front telescopic ruler 10 (for convenient disassembly and installation), and the front-back inclination angle of the longitudinal slope adjusting beam 11 is consistent with the predetermined longitudinal slope.

[0046] The cross-slope adjusting structure is as follows: The cross-slope adjusting structure includes a sliding block 12. The bottom of the sliding block 12 is provided with an inclined sliding positioning groove 13 with an opening facing downward. The sliding block 12 is slidably clamped on the longitudinal slope adjusting beam 11 through the inclined sliding positioning groove 13; a protractor structure 14 is fixedly connected to the top of the sliding block 12 (preferably integrally provided). The origin part 19 of the protractor structure 14 (i.e., the starting point of all its angle lines, which is the center of the protractor arc) is bolted with an inclined scraper 15. The left-right inclination angle of the scraper 15 is consistent with the predetermined cross-slope.

[0047] Preferably, the origin of the protractor structure 14 is located directly above the inclined sliding positioning groove 13.

[0048] An upper roller 16 is installed on the inner surface of the top wall of the translation sliding positioning groove 5, and the upper roller 16 is in rolling pressure contact with the top surface of the curb 6; a right roller 17 is installed on the right inner wall of the translation sliding positioning groove 5, and the right roller 17 is in rolling pressure contact with the right surface of the curb 6; a left roller 18 is installed on the left inner wall of the translation sliding positioning groove 5, and the left roller 18 is in rolling pressure contact with the left surface of the curb 6.

[0049] The settings of the upper roller 16, the left roller 18, and the right roller 17 convert the sliding friction between the translation sliding positioning groove 5 and the top surface of the curb 6 into rolling friction, which not only saves manpower when moving along the curb 6 but also reduces wear during use and extends the service life of the present utility model.

[0050] The cross-section of the scraper 15 is L-shaped. The bottom edge of the L-shape and its front end are provided with a pointed blade part, which is beneficial for scraping off the redundant part of the mortar leveling layer. When scraping off the redundant amount on the upper layer of the mortar leveling layer through the bottom plate in the L-shape of the scraper 15, the redundant amount (mortar material) can be blocked by the vertical plate in the L-shape of the scraper 15, so that the scraped mortar material is pushed forward and will not fall onto the mortar leveling layer with a controlled slope behind the scraper 15. The forward direction of the construction of the present utility model is the downhill direction, which is also beneficial for the scraped mortar material to fall forward without affecting the mortar leveling layer with a controlled slope behind.

[0051] The present utility model also discloses a multi-surface slope control method using the multi-surface slope control device in the above-mentioned zigzag street gutter construction, which is carried out according to the following steps:

[0052] When the multi-surface slope control device for zigzag street gutter construction is stored, the front telescopic ruler 10, the rear telescopic ruler 9 and the longitudinal slope adjusting beam 11 are removed from the E-shaped frame for easy storage;

[0053] The first step is to install the E-shaped frame, which is carried out before installing the curbstone. Before this step, the side stone 6 has been installed in place and its top surface is horizontal. The road structure layer and the concrete cushion under the curbstone have been constructed, and the mortar leveling layer is paved on the concrete cushion waiting to control its longitudinal slope (i.e., the front and rear slope) and transverse slope (i.e., the left and right slope).

[0054] In this step, the translation sliding positioning groove 5 is buckled on the side stone 6. At this time, the side stone 6 is clamped between the left roller 18 and the right roller 17, and the upper roller 16 presses on the top surface of the side stone 6, making the top edge 1 of the E-shaped frame in a horizontal state and the left vertical edge 2, the right vertical edge 3 and the middle vertical edge 4 all in a vertical state; The forward direction during construction is the downhill direction of the road slope;

[0055] The second step is to install the longitudinal slope adjustment structure so that the slope of the longitudinal slope adjusting beam 11 is the same as the predetermined longitudinal slope.

[0056] The third step is to install the transverse slope adjustment structure so that the angle of the left and right inclination of the scraper 15 is consistent with the predetermined transverse slope.

[0057] The fourth step is to push the sliding block 12 from the rear to the front, so that the sliding block 12 drives the protractor structure 14 and the scraper 15 to move forward along the longitudinal slope adjusting beam 11 until the sliding block 12 contacts the front telescopic ruler 10, and then the fourth step ends;

[0058] During the forward movement, the scraper 15 scrapes off the redundant amount on the top surface of the mortar leveling layer, and controls the longitudinal slope and transverse slope of the top surface of the mortar leveling layer within the predetermined longitudinal slope and transverse slope through one movement.

[0059] After the fourth step is completed, the slope control work of a section of the mortar leveling layer of the road is completed. Push the sliding block 12 backward until the rear end of the longitudinal slope adjusting beam 11 abuts against the rear telescopic ruler 9, and then push the E-shaped frame forward along the top surface of the side stone 6. The pushing distance is the length of the E-shaped frame in the front and rear directions, and then repeat the fourth step until the stroke of the E-shaped frame covers the entire length of the predetermined road section, and the slope control work of the mortar leveling layer of this section of the road section is completed.

[0060] The multi-slope control method of the present utility model is very simple. It only needs to slide the sliding block 12 from the back to the front to the front telescopic ruler 10, and the front and back slopes (longitudinal slope) and left and right slopes (cross slope) of the mortar leveling layer can be controlled simultaneously, improving the slope control efficiency compared with the past. Not only is the actual operation simple, but there is no complex calculation work before the actual slope control operation (sliding the sliding block 12 back and forth). The cross slope control does not require calculation and only needs to measure the angle once; the longitudinal slope control only needs to calculate the product of two numbers (L×0.N%), which is greatly simplified compared with the past. The present utility model reduces the knowledge requirements for construction workers and greatly reduces the workload of slope control construction.

[0061] The second step is specifically as follows: the predetermined longitudinal slope is 0.N%, where N is a positive real number; the length of the E-shaped frame in the front and back direction is L millimeters; L is a positive real number; the height difference = L×0.N% millimeters; in this embodiment, L = 2000 millimeters, N = 3, and the height difference = 6 millimeters.

[0062] Connect the front telescopic ruler 10 downward to the left front vertical side 21, connect the rear telescopic ruler 9 downward to the left rear vertical side 22, and adjust the front telescopic ruler 10 to its maximum downward extension state; adjust the rear telescopic ruler 9 first to its maximum downward extension state, and then retract it upward by L×0.N% millimeters. Use a fixing bolt to fix the rear end of the longitudinal slope adjusting beam 11 at the connection hole position at the lower end of the rear telescopic ruler 9, and use a fixing bolt to fix the front end of the longitudinal slope adjusting beam 11 at the connection hole position at the lower end of the front telescopic ruler 10. At this time, the slope of the longitudinal slope adjusting beam 11 is fixed to the predetermined longitudinal slope.

[0063] The third step is specifically as follows: Slide the sliding block 12 downward and engage it with the longitudinal slope adjusting beam 11 through its inclined sliding positioning groove 13, and push the sliding block 12 to the rear end of the longitudinal slope adjusting beam 11 to abut against the rear telescopic ruler 9; loosen the bolt between the scraping plate 15 and the protractor structure 14, and according to the indication of the protractor structure 14, the construction worker adjusts the left and right inclination angles of the scraping plate 15 to be consistent with the predetermined cross slope, and then tightens the bolt to fix the inclination angle of the scraping plate 15; at this time, the lower surface of the scraping plate 15 is lower than the top surface of the already constructed mortar leveling layer (slightly lower is okay, the purpose is to ensure that the mortar leveling layer can be scraped to control its surface slope); and it is consistent with the height of the top surface of the mortar leveling layer in the design.

[0064] The above embodiments are only used to illustrate rather than limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present utility model can still be modified or equivalently replaced, and any modification or partial replacement without departing from the spirit and scope of the present utility model should be covered by the scope of the claims of the present utility model.

Claims

1. A multi-faceted slope control device for zigzag street ditch construction, with the road width direction as the left and right direction, the road length direction as the front and back direction, and the road lowering direction as the front direction; the characteristics are: The invention comprises a frame, wherein the cross section of the frame in the left-right direction is in an E-shape, the opening of the E-shaped frame is arranged downward, the E-shaped frame comprises a top side, a left vertical side, a right vertical side and a middle vertical side, a translation sliding positioning groove opening downward is formed between the middle vertical side and the right vertical side, the translation sliding positioning groove matches the curb stone of the road and is used to cover the middle and upper part of the curb stone to keep the top side of the frame in a horizontal state; the left vertical side comprises a left front vertical side and a left rear vertical side, A longitudinal slope adjustment structure is connected between the left front vertical edge and the left rear vertical edge, and the longitudinal slope adjustment structure is slidably connected to a transverse slope adjustment structure. The longitudinal slope adjustment structure is used to constrain the slope of the transverse slope adjustment structure when it moves forward and backward. The transverse slope adjustment structure is used to control the transverse slope of the mortar leveling layer through its own inclination angle and control the longitudinal slope of the mortar leveling layer through the forward and backward movement slope of the longitudinal slope adjustment structure, so as to smooth the top surface of the mortar leveling layer to the predetermined longitudinal slope and transverse slope at one time.

2. The multi-faceted slope control device in the construction of a sawtooth ditch according to claim 1, characterized in that: The longitudinal slope adjustment structure is: The length of the left rear vertical side is shorter than that of the left front vertical side; the left rear vertical side is connected downwardly with a rear telescopic ruler, and the left front vertical side is connected downwardly with a front telescopic ruler; a longitudinal slope adjustment beam is connected between the bottom ends of the rear telescopic ruler and the bottom ends of the front telescopic ruler, and the longitudinal slope adjustment beam is connected to the rear telescopic ruler and the front telescopic ruler by bolts, and the front and rear inclination angles of the longitudinal slope adjustment beam are consistent with the predetermined longitudinal slope gradient.

3. The multi-faceted slope control device in the construction of a sawtooth ditch according to claim 2, characterized in that: The slope adjustment structure is: The transverse slope adjustment structure includes a sliding block, a bottom of which is provided with an inclined sliding positioning groove with an opening facing downward, and the sliding block is slidably connected to the longitudinal slope adjustment beam through the inclined sliding positioning groove; a protractor structure is fixedly connected to the top of the sliding block, and the origin of the protractor structure is connected to an inclined scraper by bolts, and the left and right inclination angles of the scraper are consistent with the predetermined transverse slope.

4. The multi-faceted slope control device in the construction of a sawtooth ditch according to claim 1, characterized in that: An upper roller is installed on the inner surface of the top wall of the translational sliding positioning groove, and the upper roller is in rolling contact with the top surface of the side stone; a right roller is installed on the right inner wall of the translational sliding positioning groove, and the right roller is in rolling contact with the right surface of the side stone; a left roller is installed on the left inner wall of the translational sliding positioning groove, and the left roller is in rolling contact with the left surface of the side stone.

5. The multi-faceted slope control device in the construction of a sawtooth ditch according to claim 4, characterized in that: The cross section of the scraper is L-shaped.

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