A road widening construction method

Abstract

The application discloses a road widening construction method and relates to the technical field of road construction, specifically comprising the following steps: first, measuring and setting out, determining the construction range and the excavation elevation; second, cleaning the sundries on the surface of the widened roadbed; third, arranging the longitudinal steel bars at the connecting position of the original roadbed and the widened roadbed; fourth, driving a plurality of connecting piles with the same interval into the inner side of the longitudinal steel bars, so that the connecting pipes are connected and then the cement is poured; fifth, connecting the main connecting head assembly with the auxiliary connecting head assembly at the bottom of the connecting pile, then twisting the handle, so that the anchor is extended; sixth, filling the asphalt concrete at the connecting position of the original roadbed and the widened roadbed, and forming the asphalt concrete layer. Through the longitudinal steel bars, the connecting piles and the anchor assembly, the horizontal, longitudinal and vertical connection of the connecting position of the new and old roads is stable, and the crack or collapse phenomenon caused by uneven stress or excessive stress at the connecting position can be effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and specifically to a road widening construction method. Background Technology

[0002] Due to factors such as the surge in traffic volume, more and more old roads are no longer able to meet the current traffic demands. Widening and upgrading existing roads has become an economical, fast, reasonable and effective way to improve the traffic capacity between urban areas. Moreover, widening old roads can reduce environmental pollution and waste of resources.

[0003] The invention patent with publication number CN113026473A discloses a road widening construction method, which greatly improves the integrity of the new and old roads by setting up a connecting plate with a large contact area between the connecting plate and the road, thereby alleviating the problem of longitudinal cracks caused by uneven stress on the new and old road surfaces.

[0004] The connecting plate assembly structure set in this comparative document has certain shortcomings in actual use. Although connecting the connecting plate assembly and the steel frame can improve the ability of the connection between the new and old road sections to withstand vertical and longitudinal pressure, it may cause the connection between the new and old road sections to crack or fall together when encountering excessive or uneven stress, such as when vehicles are driving. Summary of the Invention

[0005] The purpose of this invention is to provide a road widening construction method to solve the above-mentioned technical problems.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A road widening construction method specifically includes the following steps:

[0008] The first step is to measure and set out the lines to determine the construction area and excavation elevation;

[0009] The second step is to clear debris from the surface of the roadbed to be widened, and then excavate the widening area.

[0010] The third step is to lay longitudinal reinforcement bars at the connection point between the original roadbed and the widened roadbed.

[0011] Step 4: Drive multiple equally spaced connecting piles into the inside of the longitudinal reinforcement bars, so that the pipes are connected and then start pouring cement.

[0012] Step 5: Connect the main connector assembly and the auxiliary connector assembly at the bottom of the connecting pile, and then turn the handle to extend the anchor.

[0013] The sixth step is to fill the asphalt concrete at the joint position of the original roadbed and the widened roadbed, and form an asphalt concrete layer.

[0014] Preferably, the surface of the original roadbed is excavated with a connecting section near the widened roadbed, the surface of the widened roadbed is excavated with a docking section near the original roadbed, the surfaces of the connecting section and the docking section are paved with an asphalt concrete layer, and the upper end of the asphalt concrete layer is paved with asphalt mastic near the connecting section and the docking section.

[0015] Preferably, the number of longitudinal steel bars is three, the surfaces of the longitudinal steel bars are equidistantly welded and fixed with a steel ring, the side surface of the longitudinal steel bar is equidistantly welded and fixed with a steel sleeve at one end of the steel ring, and the surface of the steel sleeve is welded and fixed with a triangular steel bar.

[0016] Preferably, the inner side of the connecting pile is provided with a pouring groove, the two long side surfaces of the connecting pile are fixedly connected with a connecting sleeve, the surface of the connecting sleeve is rotatably connected with a rotating pipe, the surface of one end of the rotating pipe is symmetrically provided with a clamping groove, the surface of one end of the rotating pipe is symmetrically fixedly connected with a clamping piece on one side of the clamping groove, and the pouring groove is throughly connected with the connecting sleeve.

[0017] Preferably, the main connecting head is welded and fixed with the connecting pile, the surface of the main connecting head is rotatably connected with a first rotating head, the side surface of the first rotating head is welded and fixed with a first sleeve claw at one end edge, the side surface of the first rotating head is welded and fixed with a first clamping pin at the side surface of the first sleeve claw, the surface of one of the first clamping pins is provided with a first recess, and the surface of the other first clamping pin is embeddedly connected with a first steel ball.

[0018] Preferably, the surface of one end of the auxiliary connecting head is fixedly connected with a sleeve, the surface of the other end of the auxiliary connecting head is rotatably connected with a second rotating head, the side surface of the second rotating head is welded and fixed with a second sleeve claw at one end edge, the side surface of the second rotating head is welded and fixed with a second clamping pin at the side surface of the second sleeve claw, the surface of one of the second clamping pins is provided with a second recess, and the surface of the other second clamping pin is embeddedly connected with a second steel ball.

[0019] Preferably, the side surface of the sleeve is provided with an adjusting groove near one end edge, the side surface of the sleeve is symmetrically provided with a missing groove at the other end edge, a sleeve seat is fixedly installed inside the sleeve near the adjusting groove, the side surface of the sleeve seat is fixedly connected with an arc-shaped piece, the surface of one end of the arc-shaped piece is fixedly connected with a stop block, the surface of the sleeve seat is rotatably connected with a lead screw, and the surface of one end of the lead screw is fixedly connected with a screw handle.

[0020] Preferably, one side of the card anchor is provided with a connecting barrel, the inside of the connecting barrel is provided with a wire slot, the wire slot is screw connected with a lead screw, the side surface of the connecting barrel is symmetrically fixedly connected with a positioning sleeve, the side surface of the positioning sleeve is fixedly connected with a limiting block at one end edge, the side surface of the positioning sleeve is rotatably connected with a turnover rod, one end of the turnover rod is rotatably connected with a linkage sleeve, and the linkage sleeve is fixedly connected with the card anchor.

[0021] The beneficial effects of the present application are:

[0022] Through the longitudinal steel bars, the connecting piles and the card anchor assembly, the integrity between the new and old roads can be greatly improved, wherein the three longitudinal steel bar assemblies are the matrix, the steel bar sleeve and the triangular steel bar are respectively used as the outer support and the inner support, the structural strength is greatly increased, the longitudinal stress capacity at the fragile connection between the connecting section and the butt joint section is enhanced, and the sinking and misplacement at the connection are avoided.

[0023] After the connecting pile assembly structure is laid equidistantly on the surface of the longitudinal steel bars, all the connecting piles are connected as a whole through the rotating pipe first, so that the deflection and shaking under the pressure of the single connecting pile is avoided, then the cement is poured into the pouring groove, and the pressure capacity of the connecting pile is further enhanced, so that the vertical pressure capacity of the connecting section and the butt joint section at the connection is effectively guaranteed.

[0024] After the card anchor assembly is connected with the connecting piles by the main connecting head and the auxiliary connecting head, the connection stability with the original roadbed and the widened roadbed can be guaranteed, every two card anchor assemblies form a group to form an included angle structure, the transverse pressure capacity of the connecting section and the butt joint section at the connection is further improved, and the card anchor can be further clamped with the peripheral roadbed after being fully unfolded, so that the connection stability is increased. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described below with reference to the drawings.

[0026] Figure 1 It is a schematic view of the connecting structure of the original roadbed, the widened roadbed and the asphalt concrete layer of the present application;

[0027] Figure 2 It is a schematic view of the cross-sectional structure of the original roadbed, the widened roadbed and the asphalt concrete layer of the present application;

[0028] Figure 3 It is a schematic view of the longitudinal, transverse and vertical support connecting structure of the present application;

[0029] Figure 4 It is a schematic view of the longitudinal support structure of the present application;

[0030] Figure 5 It is a schematic view of the transverse and vertical support connecting structure of the present application;

[0031] Figure 6 is a schematic diagram of the connecting pile assembly and connecting head connecting structure of the present application;

[0032] Figure 7 is a schematic diagram of the disassembly of the transverse support connecting structure assembly of the present application;

[0033] Figure 8 is a schematic diagram of the clamping anchor assembly structure of the present application.

[0034] In the figure: 1, original roadbed; 2, connecting section; 3, widened roadbed; 4, butt joint section; 5, asphalt concrete layer; 6, longitudinal reinforcement; 7, reinforcement ring; 8, reinforcement sleeve; 9, triangular reinforcement; 10, connecting pile; 11, pouring groove; 12, connecting sleeve; 13, rotating pipe; 14, clamping groove; 15, clamping piece; 16, main connecting head; 17, first rotating head; 18, first sleeve claw; 19, first clamping pin; 20, first recess; 21, first steel ball; 22, sleeve; 23, adjusting groove; 24, missing groove; 25, sleeve seat; 26, arc-shaped piece; 27, stop block; 28, twisting handle; 29, screw rod; 30, secondary connecting head; 31, second rotating head; 32, second sleeve claw; 33, second clamping pin; 34, second recess; 35, second steel ball; 36, connecting cylinder; 37, screw groove; 38, positioning sleeve; 39, limiting block; 40, overturning rod; 41, linkage sleeve; 42, clamping anchor. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0036] Please refer to Figures 1-8 The present application is a road widening construction method, which specifically comprises the following steps:

[0037] First step, measurement and setting out, determine the construction range and excavation elevation;

[0038] Second step, clean the surface of the widened roadbed 3, and then excavate the widened area;

[0039] Third step, lay out longitudinal reinforcement 6 at the connecting position of the original roadbed 1 and the widened roadbed 3;

[0040] Fourth step, punch a plurality of equally spaced connecting piles 10 on the inner side of the longitudinal reinforcement 6, so that the rotating pipe 13 is connected and then begin to pour cement;

[0041] Fifth, the main connector 16 assembly and the sub-connector 30 assembly are connected at the bottom of the connecting pile 10, and then the handle 28 is twisted to make the anchor 42 extend out;

[0042] Sixth, the asphalt concrete is filled at the connecting position of the original roadbed 1 and the widened roadbed 3 to form the asphalt concrete layer 5.

[0043] The surface of the original roadbed 1 near the widened roadbed 3 is excavated to form a connecting section 2, and the surface of the widened roadbed 3 near the original roadbed 1 is excavated to form a docking section 4. The surfaces of the connecting section 2 and the docking section 4 are paved with the asphalt concrete layer 5. The upper end of the asphalt concrete layer 5 is paved with asphalt mastic near the connecting section 2 and the docking section 4. The asphalt mastic is a mixture composed of asphalt and rubber powder. The paved road surface can improve wear resistance and prolong the service life of the road surface. In addition, the asphalt mastic has strong crack resistance, which can reduce the occurrence of cracks and improve water resistance, thereby preventing water from entering the road surface and protecting the road surface.

[0044] The number of longitudinal steel bars 6 is three. The surfaces of the longitudinal steel bars 6 are equidistantly welded with steel rings 7. The side surfaces of the longitudinal steel bars 6 are equidistantly welded with steel sleeves 8 at one end of the steel rings 7. The surfaces of the steel sleeves 8 are welded with triangular steel bars 9. The three longitudinal steel bars serve as the base, and the steel sleeves and the triangular steel bars serve as the outer support and the inner support, respectively, which greatly increases the structural strength and enhances the longitudinal stress capacity at the weak connection between the connecting section and the docking section, thereby avoiding the sinking and misalignment of the connecting section.

[0045] The inner side of the connecting pile 10 is provided with a pouring groove 11. The two long side surfaces of the connecting pile 10 are fixedly connected with connecting sleeves 12. The surfaces of the connecting sleeves 12 are rotatably connected with rotating pipes 13. The surfaces of one end of the rotating pipes 13 are symmetrically provided with clamping grooves 14. The surfaces of one end of the rotating pipes 13 are symmetrically fixedly connected with clamping pieces 15 on one side of the clamping grooves 14. The pouring groove 11 is connected with the connecting sleeve 12. When connecting multiple connecting piles 10, the surfaces of the adjacent rotating pipes 13 need to be close to each other, and then the aligned clamping pieces 15 are inserted into the clamping grooves 14, and then the rotating pipes 13 are rotated to further clamp the clamping pieces 15 on the surfaces of the clamping grooves 14, so that the rotating pipes 13 are tightly connected. When pouring cement from the pouring groove 11, the cement flows into the rotating pipes 13 and solidifies to form a whole, which ensures the stability of the whole and further enhances the pressure capacity of the connecting pile 10, thereby effectively ensuring the vertical pressure capacity of the connecting section 2 and the docking section 4 at the connecting position.

[0046] The main connector 16 is welded and fixed with the connecting pile 10, the surface of the main connector 16 is rotationally connected with the first rotating head 17, the side surface of the first rotating head 17 is welded and fixed with the first claw 18 at the edge of one end, the side surface of the first rotating head 17 is welded and fixed with the first pin 19 at the side surface of the first claw 18, the surface of one of the first pins 19 is provided with the first groove 20, and the surface of the other first pin 19 is embeddedly connected with the first steel ball 21;

[0047] The surface of one end of the auxiliary connector 30 is fixedly connected with the sleeve 22, the surface of the other end of the auxiliary connector 30 is rotationally connected with the second rotating head 31, the side surface of the second rotating head 31 is welded and fixed with the second claw 32 at the edge of one end, the side surface of the second rotating head 31 is welded and fixed with the second pin 33 at the side surface of the second claw 32, the surface of one of the second pins 33 is provided with the second groove 34, and the surface of the other second pin 33 is embeddedly connected with the second steel ball 35, the anchor 42 assembly is connected with the connecting pile 10 assembly, mainly relying on the main connector 16 assembly and the auxiliary connector 30 assembly, when operating, only the first rotating head 17 and the second rotating head 31 need to be pasted, then any one of the connectors is twisted, so that the aligned pin can be clamped into the claw, and the first steel ball 21 is clamped into the second groove 34, and the second steel ball 35 is also clamped into the first groove 20, so as to ensure the connection stability of the main connector 16 and the auxiliary connector 30, and avoid the disconnection;

[0048] The side surface of the sleeve 22 is provided with the adjusting groove 23 close to the edge of one end, the side surface of the sleeve 22 is symmetrically provided with the missing groove 24 at the edge of the other end, the inside of the sleeve 22 is fixedly installed with the sleeve seat 25 at the adjusting groove 23, the side surface of the sleeve seat 25 is fixedly connected with the arc-shaped sheet 26, the surface of one end of the arc-shaped sheet 26 is fixedly connected with the stop block 27, the surface of the sleeve seat 25 is rotationally connected with the lead screw 29, and the surface of one end of the lead screw 29 is fixedly connected with the handle 28;

[0049] One side of the card anchor 42 is provided with a connecting barrel 36, the inside of the connecting barrel 36 is provided with a wire slot 37, the wire slot 37 is screw connected with the lead screw 29, the side surface of the connecting barrel 36 is symmetrically fixedly connected with a positioning sleeve 38, the side surface of the positioning sleeve 38 is fixedly connected with a limiting block 39 at one end edge, the side surface of the positioning sleeve 38 is rotatably connected with a turnover rod 40, one end of the turnover rod 40 is rotatably connected with a linkage sleeve 41, the linkage sleeve 41 is fixedly connected with the card anchor 42, in order to ensure that the card anchor 42 can be completely unfolded in the laying process, the user needs to twist the handle 28, so that the lead screw 29 rotates and drives the connecting barrel 36 to move, when the connecting barrel 36 gradually approaches the direction of the stop block 27, the turnover rod 40 will start to turn after touching the stop block 27, until the turnover rod 40 is kept in the vertical state by the limiting block 39, at the same time, the linkage sleeve 41 will be unfolded to the maximum extent, at this time, the card anchor 42 will also completely stretch out of the missing slot 24 and be clamped into the external roadbed, thereby ensuring the connection stability with the original roadbed and the widened roadbed, and every two card anchor assemblies form a group to form a clamped angle structure, which can further improve the lateral pressure bearing capacity of the connecting section and the butt joint section at the connection.

[0050] The working principle of the present application is that three longitudinal steel bar assemblies are the base body, the steel bar sleeve and the triangular steel bar are respectively used as the outer support and the inner support, which greatly increases the structural strength and can enhance the longitudinal stress capacity at the weak connection between the connecting section and the butt joint section, thereby avoiding the sinking and misplacement of the connection part, when connecting multiple connecting piles 10, the surfaces of the adjacent rotating pipes 13 are required to be close to each other, then the clamping pieces 15 are inserted into the clamping grooves 14, then the rotating pipe 13 is rotated to enable the clamping pieces 15 to be further clamped on the surface of the clamping groove 14, so that the rotating pipe 13 is tightly connected, and when the cement is poured from the pouring groove 11, the cement flows into the rotating pipe 13, and after solidification and molding, all the connecting piles 10 are connected into one body to ensure the stability of the whole body and further enhance the pressure bearing capacity of the connecting pile 10, thereby effectively ensuring the vertical direction pressure bearing capacity of the connecting section 2 and the butt joint section 4 at the connection part, in order to ensure that the card anchor 42 can be completely unfolded in the laying process, the user needs to twist the handle 28, so that the lead screw 29 rotates and drives the connecting barrel 36 to move, when the connecting barrel 36 gradually approaches the direction of the stop block 27, the turnover rod 40 will start to turn after touching the stop block 27, until the turnover rod 40 is kept in the vertical state by the limiting block 39, at the same time, the linkage sleeve 41 will be unfolded to the maximum extent, at this time, the card anchor 42 will also completely stretch out of the missing slot 24 and be clamped into the external roadbed, thereby ensuring the connection stability with the original roadbed and the widened roadbed, and every two card anchor assemblies form a group to form a clamped angle structure, which can further improve the lateral pressure bearing capacity of the connecting section and the butt joint section at the connection.

[0051] The above has been described in detail one embodiment of the present application, but the content is only the preferred embodiment of the present application, cannot be considered for limiting the scope of the present application. Any equivalent changes and improvements made in the scope of the present application, should still belong to the scope of the present application.

Claims

1. A method of road widening construction, characterized by, Specifically comprising the following steps: The first step is to measure the release line, determine the construction range and the excavation elevation; The second step is to clean the surface of the widened roadbed (3) of sundries, and then excavate the widened area; The third step is to arrange longitudinal reinforcement (6) at the connection position of the original roadbed (1) and the widened roadbed (3); The fourth step is to drive a plurality of equally spaced connecting piles (10) inside the longitudinal reinforcement (6), so that the connecting pipe (13) is connected and then starts to pour cement; The fifth step is to connect the main connector (16) assembly and the auxiliary connector (30) assembly at the bottom of the connecting pile (10), and then twist the handle (28) to make the anchor (42) extend; The sixth step is to fill the asphalt concrete at the connection position of the original roadbed (1) and the widened roadbed (3), and form an asphalt concrete layer (5); The number of longitudinal reinforcement (6) is three, the surface of longitudinal reinforcement (6) is equidistantly welded with reinforcement ring (7), the side surface of longitudinal reinforcement (6) is equidistantly welded with reinforcement sleeve (8) at one end of reinforcement ring (7), and the surface of reinforcement sleeve (8) is welded with triangular reinforcement (9); The inner side of the connecting pile (10) is provided with a pouring groove (11), the two long side surfaces of the connecting pile (10) are fixedly connected with a connecting sleeve (12), the surface of the connecting sleeve (12) is rotatably connected with a connecting pipe (13), the surface of one end of the connecting pipe (13) is symmetrically provided with a clamping groove (14), the surface of one end of the connecting pipe (13) is symmetrically fixedly connected with a clamping piece (15) at one side of the clamping groove (14), and the pouring groove (11) and the connecting sleeve (12) are throughly connected; The main connector (16) is welded with the connecting pile (10), the surface of the main connector (16) is rotatably connected with a first rotating head (17), the side surface of the first rotating head (17) is welded with a first sleeve jaw (18) at one end edge, the side surface of the first rotating head (17) is welded with a first clamping pin (19) at the side surface of the first sleeve jaw (18), the surface of one of the first clamping pins (19) is provided with a first recess (20), and the surface of the other first clamping pin (19) is embeddedly connected with a first steel ball (21); The surface of one end of the auxiliary connector (30) is fixedly connected with a sleeve (22), the surface of the other end of the auxiliary connector (30) is rotatably connected with a second rotating head (31), the side surface of the second rotating head (31) is welded with a second sleeve jaw (32) at one end edge, the side surface of the second rotating head (31) is welded with a second clamping pin (33) at the side surface of the second sleeve jaw (32), the surface of one of the second clamping pins (33) is provided with a second recess (34), and the surface of the other second clamping pin (33) is embeddedly connected with a second steel ball (35); The side surface of the sleeve (22) is provided with an adjusting groove (23) near one end edge, the side surface of the sleeve (22) is symmetrically provided with a missing groove (24) at the other end edge, the inside of the sleeve (22) is fixedly installed with a sleeve seat (25) near the adjusting groove (23), the side surface of the sleeve seat (25) is fixedly connected with an arc-shaped sheet (26), one end surface of the arc-shaped sheet (26) is fixedly connected with a stop block (27), the surface of the sleeve seat (25) is rotatably connected with a lead screw (29), one end surface of the lead screw (29) is fixedly connected with a handle (28); One side of the clamping anchor (42) is provided with a connecting barrel (36), the inside of the connecting barrel (36) is provided with a silk groove (37), the silk groove (37) is screw-connected with the lead screw (29), the side surface of the connecting barrel (36) is symmetrically fixedly connected with a positioning sleeve (38), the side surface of the positioning sleeve (38) is fixedly connected with a limiting block (39) at one end edge, the side surface of the positioning sleeve (38) is rotatably connected with a turnover rod (40), one end of the turnover rod (40) is rotatably connected with a linkage sleeve (41), the linkage sleeve (41) is fixedly connected with the clamping anchor (42).

2. The road widening construction method according to claim 1, characterized by The surface of the original roadbed (1) is excavated with a connecting section (2) near the widened roadbed (3), the surface of the widened roadbed (3) is excavated with a butt joint section (4) near the original roadbed (1), the surface of the connecting section (2) and the butt joint section (4) is paved with an asphalt concrete layer (5), the upper end of the asphalt concrete layer (5) is paved with asphalt mastic near the connecting section (2) and the butt joint section (4).

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