阅读说明：本技术 高速公路扩建工程超高段新旧路面拼接结构 (New old road surface mosaic structure of super high section of highway extension project ) 是由 齐钊 陈华伟 李鹏 杨宏 李众 王斌 曹继荣 张晓省 魏琛 侯山花 于 2019-10-18 设计创作，主要内容包括：本发明涉及道路扩建技术领域,具体地说,涉及一种高速公路扩建工程超高段新旧路面拼接结构。其包括用于设于旧路面和新路面之间的拼接结构主体,以及用于与拼接结构主体配合的排水管道；拼接结构主体包括沿旧路面边缘依次设置的多个拼接单元,每个拼接单元处均对应设置一排水管道,排水管道用于将对应拼接单元处的积水排出至旧路面的外侧。本发明能够较佳地实现高速公路扩建工程中对于超高段新旧路面的拼接。(The invention relates to the technical field of road extension, in particular to a splicing structure of new and old road surfaces at an ultrahigh section of an expressway extension project. The spliced structure comprises a spliced structure main body arranged between an old road surface and a new road surface and a drainage pipeline matched with the spliced structure main body; the mosaic structure main part includes a plurality of concatenation units that set gradually along old road surface edge, and every concatenation unit department all corresponds and sets up a drainage pipe, and drainage pipe is used for discharging the ponding that corresponds concatenation unit department to the outside on old road surface. The invention can better realize the splicing of the super-high section new and old road surfaces in the highway extension project.)

1. New and old road surface mosaic structure of super high section of highway extension project, its characterized in that: the pavement structure comprises a splicing structure main body (130) arranged between an old pavement (110) and a new pavement (120), and a drainage pipeline (140) matched with the splicing structure main body (130); the splicing structure main body (130) comprises a plurality of splicing units (200) which are sequentially arranged along the edge of an old road surface (110), a drainage pipeline (140) is correspondingly arranged at each splicing unit (200), and the drainage pipeline (140) is used for draining accumulated water at the corresponding splicing unit (200) to the outer side of the old road surface (110).

2. The splicing structure of the new and old road surfaces of the super high section of the highway extension project according to claim 1, which is characterized in that: the old pavement (110) comprises an old pavement bed layer (111), an old pavement subbase layer (112), an old pavement base layer (113) and an old pavement surface layer (114) which are sequentially paved from bottom to top, and the new pavement (120) comprises a new pavement bed layer (121), a new pavement base layer (122), a new pavement base layer (123) and a new pavement surface layer (124) which are sequentially paved from bottom to top;

the splicing unit (200) is arranged above the old pavement layer (111) and the new pavement layer (121) and below the old pavement layer (114) and the new pavement layer (124); the splicing unit (200) comprises a first plate (131) used for being matched with the upper surface of the new pavement base layer (121), a second plate (132) used for being matched with the side surface of the old pavement base layer (112), a third plate (133) used for being matched with the side surface of the old pavement base layer (113), a fourth plate (134) used for being matched with the new pavement base layer (124), a fifth plate (135) used for being matched with the side surface of the new pavement base layer (123), a sixth plate (136) used for being matched with the bottom surface of the new pavement base layer (123), and a seventh plate (137) used for being matched with the side surface of the new pavement base layer (122); the fourth plate (134), the fifth plate (135), the sixth plate (136) and the seventh plate (137) are sequentially and vertically arranged and form a step shape used for being matched with a new road surface (120) together;

a drainage cavity is formed among the first plate (131), the second plate (132), the third plate (133), the fourth plate (134), the fifth plate (135), the sixth plate (136) and the seventh plate (137), and a first packing layer (138a) and a second packing layer (138b) are sequentially paved in the drainage cavity from bottom to top; the drainage pipeline (140) comprises a vertical pipe (141) and a transverse pipe (142), the upper end of the vertical pipe (141) extends to the upper surface of the first packing layer (138a), the lower end of the vertical pipe (141) sequentially penetrates through the first packing layer (138a), the first plate (131) and the new pavement bed layer (121) and is communicated with the inner end of the transverse pipe (142), and the outer end of the transverse pipe (142) extends to the outer side of the new pavement (120);

the third plate (133) and the fourth plate (134) are provided with water guide holes (211), the second packing layer (138b) is a gravel layer, the upper end of the vertical tube (141) is provided with a grid (143), and the height of the outer end of the transverse tube (142) in the vertical direction is lower than that of the inner end of the transverse tube.

3. The splicing structure for the new and old road surfaces of the ultrahigh section of the highway extension project according to claim 2, characterized in that: the second plate (132) and the third plate (133) are obliquely arranged, the upper end of the second plate (132) is positioned at the inner side of the lower end of the second plate, and the upper end of the third plate (133) is positioned at the outer side of the lower end of the third plate; the inner sides of the second plate (132) and the third plate (133) are both vertically provided with gear shaping teeth (150).

4. The splicing structure of the new and old road surfaces of the super high section of the highway extension project according to claim 3, characterized in that: gear shaping installation parts are arranged at the second plate (132) and the third plate (133), the gear shaping installation parts comprise circular gear shaping installation plates (510), and a plurality of fan-shaped grouting holes (520) are uniformly formed in the peripheries of the gear shaping installation plates (510); the gear shaping (150) comprises a cylindrical gear shaping main body (212), and the gear shaping main body (212) is welded at the gear shaping mounting plate (510); the gear shaping main body (212) is provided with gear shaping sheets (213) extending along the axial direction of the gear shaping main body (212) at the positions between the adjacent grouting holes (520), and grouting rings (311) corresponding to the gear shaping installation parts are arranged on the outer sides of the second plate (132) and the third plate (133).

5. The splicing structure for the new and old road surfaces of the ultrahigh section of the highway extension project according to claim 2, characterized in that: the splicing unit (200) comprises a framework (400), and the first plate (131), the second plate (132), the third plate (133), the fourth plate (134), the fifth plate (135), the sixth plate (136) and the seventh plate (137) are connected with the framework (400);

the framework (400) comprises longitudinal framework units and transverse framework units, the transverse framework units are arranged at the longitudinal framework units at intervals, and splicing units (200) are formed between adjacent transverse framework units;

the longitudinal skeleton unit comprises a first longitudinal support rod (161), a second longitudinal support rod (162), a third longitudinal support rod (163), a fourth longitudinal support rod (164), a fifth longitudinal support rod (165) and a sixth longitudinal support rod (166) which extend longitudinally along the road surface; the transverse framework unit comprises a first transverse supporting rod (221), a second transverse supporting rod (222), a third transverse supporting rod (223), a fourth transverse supporting rod (224), a fifth transverse supporting rod (225), a sixth transverse supporting rod (226) and a seventh transverse supporting rod (227);

the first transverse supporting rod (221) is arranged between the first longitudinal supporting rod (161) and the sixth longitudinal supporting rod (166), and the first plate (131) is arranged between the adjacent first transverse supporting rods (221);

the lower ends of the second transverse supporting rods (222) are arranged on the upper side of the first longitudinal supporting rod (161), and the adjacent second transverse supporting rods (222) are respectively arranged at two ends of the outer side of the second plate (132);

the lower end of a third transverse supporting rod (223) is connected with the upper end of a second transverse supporting rod (222), the upper end of the third transverse supporting rod (223) is arranged at the lower side of a second longitudinal supporting rod (162), and adjacent third transverse supporting rods (223) are respectively arranged at two ends of the outer side of a third plate (133);

the inner end of the fourth transverse supporting rod (224) is arranged at the outer side of the second longitudinal supporting rod (162), the outer end of the fourth transverse supporting rod (224) extends to the outer side of the third longitudinal supporting rod (163), and the fourth transverse supporting rod (224) is positioned above the third longitudinal supporting rod (163); both sides of the third longitudinal support rod (163) in the longitudinal direction are provided with fourth plate insertion grooves (224a) in a penetrating manner along the length direction, both ends of the fourth plate (134) are provided with fourth plate insertion rails (710) used for being matched with the fourth plate insertion grooves (224a), and the fourth plate (134) is inserted into the fourth plate insertion grooves (224a) of the adjacent fourth transverse support rod (224) through the fourth plate insertion rails (710) at both ends;

the upper end of a fifth transverse supporting rod (225) is arranged on the lower side of the fourth transverse supporting rod (224), the lower end of the fifth transverse supporting rod (225) is arranged on the upper side of the fourth longitudinal supporting rod (164), the fifth transverse supporting rod (225) is positioned on the outer side of the third longitudinal supporting rod (163), and the outer side face of the fifth transverse supporting rod (225) is flush with the outer end face of the fourth transverse supporting rod (224); both sides of the fifth transverse supporting rod (225) in the longitudinal direction are provided with fifth plate slots (225a) in a penetrating way along the length direction of the fifth transverse supporting rod, and the fifth plate slots (225a) penetrate through the fourth transverse supporting rod (224); fifth plate inserting rails (910) matched with the fifth plate inserting grooves (225a) are arranged at two ends of the fifth plate (135), and the fifth plate (135) is inserted into the fifth plate inserting grooves (225a) of the adjacent fifth transverse supporting rods (225) through the fifth plate inserting rails (910) at the two ends;

when the fourth plate (134) and the fifth plate (135) are matched with the framework (400), the lower side of the fifth plate (135) extends to the upper side of the fourth longitudinal supporting rod (164), the upper side of the fifth plate (135) extends to the upper side of the fourth transverse supporting rod (224), the inner side of the fourth plate (134) extends to the outer side of the second longitudinal supporting rod (162), and the outer side of the fourth plate (134) extends to the inner side of the fifth plate (135);

the inner end of the sixth transverse supporting rod (226) is arranged at the outer side of the fourth longitudinal supporting rod (164), the outer end of the sixth transverse supporting rod (226) extends to the outer side of the fifth longitudinal supporting rod (165), and the sixth transverse supporting rod (226) is positioned above the fifth longitudinal supporting rod (165); both sides of the sixth transverse supporting rod (226) in the longitudinal direction are provided with sixth plate inserting grooves (226a) in a penetrating manner along the length direction, both ends of the sixth plate (136) are provided with sixth plate inserting rails (1110) used for being matched with the sixth plate inserting grooves (226a), and the sixth plate (136) is inserted into the sixth plate inserting grooves (226a) of the adjacent sixth transverse supporting rod (226) through the sixth plate inserting rails (1110) at both ends;

the upper end of the seventh transverse supporting rod (227) is arranged on the lower side of the sixth transverse supporting rod (226), the lower end of the seventh transverse supporting rod (227) is arranged on the upper side of the sixth longitudinal supporting rod (166), the seventh transverse supporting rod (227) is positioned on the outer side of the fifth longitudinal supporting rod (165), and the outer side face of the seventh transverse supporting rod (227) is flush with the outer end face of the sixth transverse supporting rod (226); both sides of the seventh transverse supporting rod (227) in the longitudinal direction are provided with seventh plate inserting grooves (227a) in a penetrating manner along the length direction of the seventh transverse supporting rod, and the seventh plate inserting grooves (227a) penetrate through the sixth transverse supporting rod (226); seventh board inserting rails (1310) used for being matched with the seventh board inserting grooves (227a) are arranged at two ends of the seventh board (137), and the seventh board (137) is inserted into the sixth board inserting grooves (226a) of the adjacent seventh transverse supporting rods (227) through the seventh board inserting rails (1310) at the two ends;

when the sixth plate (136) and the seventh plate (137) are matched with the framework (400), the inner side of the sixth plate (136) extends to the outer side of the fourth longitudinal supporting rod (164), the outer side of the sixth plate (136) extends to the outer end face of the sixth transverse supporting rod (226), the lower side of the seventh plate (137) extends to the upper side face of the sixth longitudinal supporting rod (166), and the upper side of the seventh plate (137) extends to the lower side face of the sixth plate (136).

6. The splicing structure of the new and old road surfaces of the super high section of the highway extension project according to claim 5, characterized in that: the cross sections of the fourth board insertion groove (224a) and the fourth board insertion rail (710), the fifth board insertion groove (225a) and the fifth board insertion rail (910), the sixth board insertion groove (226a) and the sixth board insertion rail (1110), and the seventh board insertion groove (227a) and the seventh board insertion rail (1310) are all configured to be T-shaped to be matched with each other.

7. The splicing structure of the new and old road surfaces of the super high section of the highway extension project according to claim 5, characterized in that: a plurality of threaded columns (231) are arranged on the upper side surface of the sixth plate (136) at intervals along the longitudinal direction, and the threaded columns (231) are vertically arranged; the outer side surface of the fifth plate (135) is provided with a sleeve column (232) corresponding to any one of the threaded columns (231) in a matched manner, and the sleeve column (232) is arranged along the transverse direction; the outer end of the sleeve connection column (232) is provided with a sleeve connection hole (920) for being sleeved on the corresponding threaded column (231), and the threaded column (231) is provided with a limit nut for limiting the sleeve connection column (232) in a threaded fit manner.

8. The splicing structure of the new and old road surfaces of the super high section of the highway extension project according to claim 5, characterized in that: a first mounting groove (241) used for being matched with a sixth plate insertion rail (1110) at one end of the sixth plate (136) is arranged on the upper side of the fourth plate (134) in a penetrating mode along the longitudinal direction, a second mounting groove (242) used for being matched with a fifth plate insertion rail (910) at one end of the fifth plate (135) is arranged on one end of the upper side of the fourth plate (134) in a penetrating mode along the transverse direction at one end of the upper side of the fourth plate (134), and a third mounting groove (243) used for being matched with a seventh plate insertion rail (1310) at one end of the seventh plate (137) is arranged in a penetrating mode along the transverse direction at the middle of the upper side of the fourth plate (134) in the longitudinal direction;

the length of the third mounting groove (243) at the inner part of the first mounting groove (241) is basically equal to the width of the seventh plate (137);

when the sixth plate (136) is matched with the first mounting groove (241), the threaded column (231) faces outwards; the position of the socket post (232) is configured such that, when the fifth plate (135) is fitted with the second mounting groove (242), the socket post (232) can abut against the inside of the sixth plate (136) through the stopper nut.

Technical Field

The invention relates to the technical field of road extension, in particular to a splicing structure of new and old road surfaces at an ultrahigh section of an expressway extension project.

Background

After the widening construction of the expressway, a joint is easily formed at the joint of a new road surface and an old road surface, the joint is an important channel for road surface water to enter a road surface structure layer, in a non-ultrahigh road section, the water seepage of longitudinal joints and the water seepage of the road surface at the splicing part are generally realized by arranging a drainage seepage ditch at the end part of a road shoulder, and the water seepage of the road surface are discharged out of the road surface structure through an arch transverse slope, but in an ultrahigh high-side section, the water of the road surface structure layer cannot be discharged out of the road surface structure due to the arrangement of a reverse arch, but is directly collected at the splicing part of the new road surface and the old road surface, the damage of the road surface structure at the splicing part of the new road surface and the old road surface can be caused for a long time.

Disclosure of Invention

The invention provides a splicing structure of new and old road surfaces at an ultra-high section of highway extension engineering, which can overcome certain or some defects in the prior art.

The ultrahigh-section new and old pavement splicing structure for the highway extension project comprises a splicing structure main body arranged between an old pavement and a new pavement and a drainage pipeline matched with the splicing structure main body; the mosaic structure main part includes a plurality of concatenation units that set gradually along old road surface edge, and every concatenation unit department all corresponds and sets up a drainage pipe, and drainage pipe is used for discharging the ponding that corresponds concatenation unit department to the outside on old road surface.

According to the invention, the splicing structure main body is arranged between the old road surface and the new road surface, and the hydrophobic system can be actively introduced into the splicing position of the old road surface and the new road surface, so that water flowing into the road surface from the road surface can be better evacuated by the splicing structure main body, and further the damage of the water to the interior of the road can be better avoided.

Preferably, the old pavement comprises an old pavement bed layer, an old pavement subbase layer, an old pavement base layer and an old pavement surface layer which are sequentially paved from bottom to top, and the new pavement comprises a new pavement bed layer, a new pavement base layer and a new pavement surface layer which are sequentially paved from bottom to top;

the splicing unit is arranged above the old pavement bed layer and the new pavement bed layer and below the old pavement surface layer and the new pavement surface layer; the splicing unit comprises a first plate, a second plate, a third plate, a fourth plate, a fifth plate, a sixth plate and a seventh plate, wherein the first plate is used for being matched with the upper surface of a new pavement base layer, the second plate is used for being matched with the side surface of an old pavement base layer, the third plate is used for being matched with the side surface of an old pavement base layer, the fourth plate is used for being matched with a new pavement surface layer, the fifth plate is used for being matched with the side surface of the new pavement base layer, the sixth plate is used for being matched with the bottom surface of the new pavement base layer, and the seventh; the fourth plate, the fifth plate, the sixth plate and the seventh plate are vertically arranged in sequence and form a ladder shape together for being matched with a new road surface;

a drainage cavity is formed among the first plate, the second plate, the third plate, the fourth plate, the fifth plate, the sixth plate and the seventh plate, and a first packing layer and a second packing layer are sequentially paved in the drainage cavity from bottom to top; the drainage pipeline comprises a vertical pipe and a transverse pipe, the upper end of the vertical pipe extends to the upper surface of the first packing layer, the lower end of the vertical pipe sequentially penetrates through the first packing layer, the first plate and the new pavement bed layer and is communicated with the inner end of the transverse pipe, and the outer end of the transverse pipe extends to the outer side of the new pavement;

the third board, fourth board department all are equipped with the water guide hole, and the second packing layer is the rubble layer, and the standpipe upper end is equipped with the grid, violently manages the height that the height of outer end is less than its inner in vertical direction.

According to the invention, the splicing unit is arranged above the old pavement bed layer and the new pavement bed layer, so that the splicing unit can be arranged after the new pavement bed layer is laid, and the arrangement is convenient; in addition, through this kind of mode of setting for the new road surface bed layer can provide the road surface load capacity better, so can guarantee the intensity on road surface better.

Preferably, the second plate and the third plate are both obliquely arranged, the upper end of the second plate is positioned inside the lower end thereof, and the upper end of the third plate is positioned outside the lower end thereof; gear shaping is vertically arranged on the inner sides of the second plate and the third plate.

According to the invention, the second plate and the third plate are obliquely arranged, so that the matching area between the second plate and the old pavement base layer and between the third plate and the old pavement base layer can be increased better, and an oblique drainage surface can be formed between the splicing unit and the old pavement base layer due to the oblique arrangement of the third plate; so can guarantee the joint strength between concatenation unit and the old road surface and then effectively avoid the formation of concatenation department crack better on the one hand, on the other hand makes the infiltration of road surface department can get into the discharge of the second packing layer so be convenient for the infiltration through the guiding of water guiding hole under the third board better.

Preferably, the second plate and the third plate are provided with gear shaping installation parts, each gear shaping installation part comprises a circular gear shaping installation plate, and the periphery of each gear shaping installation plate is uniformly provided with a plurality of fan-shaped grouting holes; the gear shaping comprises a cylindrical gear shaping main body, and the gear shaping main body is welded at the gear shaping mounting plate; the gear shaping main part is located and all is equipped with along the gear shaping piece of gear shaping main part axial extension between the adjacent injected hole, and the outside of second board and third board is equipped with the slip casting ring that corresponds with the gear shaping installation department.

According to the invention, through the arrangement of the grouting holes, when the gear shaping main body is matched with the old pavement subbase layer or the old pavement base layer, the corresponding gear shaping holes can be firstly formed at the old pavement subbase layer or the old pavement base layer, after the corresponding gear shaping main body is arranged in the corresponding gear shaping holes, the grouting pipeline can be connected through the grouting ring, so that fillers such as concrete slurry can enter the gaps between the corresponding gear shaping main body and the gear shaping holes through the grouting holes, and further, the assembly between the gear shaping main body and the corresponding gear shaping holes can be preferably realized.

Preferably, the splicing unit comprises a framework, and the first plate, the second plate, the third plate, the fourth plate, the fifth plate, the sixth plate and the seventh plate are connected with the framework;

the framework comprises longitudinal framework units and transverse framework units, the transverse framework units are arranged at the longitudinal framework units at intervals, and splicing units are formed between adjacent transverse framework units;

the longitudinal skeleton unit comprises a first longitudinal support rod, a second longitudinal support rod, a third longitudinal support rod, a fourth longitudinal support rod, a fifth longitudinal support rod and a sixth longitudinal support rod which extend longitudinally along the road surface; the transverse framework unit comprises a first transverse supporting rod, a second transverse supporting rod, a third transverse supporting rod, a fourth transverse supporting rod, a fifth transverse supporting rod, a sixth transverse supporting rod and a seventh transverse supporting rod;

the first transverse supporting rod is arranged between the first longitudinal supporting rod and the sixth longitudinal supporting rod, and the first plate is arranged between the adjacent first transverse supporting rods;

the lower ends of the second transverse supporting rods are arranged on the upper side of the first longitudinal supporting rod, and the adjacent second transverse supporting rods are respectively arranged at two ends of the outer side of the second plate;

the lower end of a third transverse supporting rod is connected with the upper end of a second transverse supporting rod, the upper end of the third transverse supporting rod is arranged at the lower side of a second longitudinal supporting rod, and adjacent third transverse supporting rods are respectively arranged at two ends of the outer side of a third plate;

the inner end of the fourth transverse supporting rod is arranged at the outer side of the second longitudinal supporting rod, the outer end of the fourth transverse supporting rod extends to the outer side of the third longitudinal supporting rod, and the fourth transverse supporting rod is positioned above the third longitudinal supporting rod; both sides of the third longitudinal supporting rod in the longitudinal direction are provided with fourth plate inserting grooves in a penetrating manner along the length direction, both ends of the fourth plate are provided with fourth plate inserting rails used for being matched with the fourth plate inserting grooves, and the fourth plate is inserted into the fourth plate inserting grooves of the adjacent fourth transverse supporting rods through the fourth plate inserting rails at both ends;

the upper end of the fifth transverse supporting rod is arranged at the lower side of the fourth transverse supporting rod, the lower end of the fifth transverse supporting rod is arranged at the upper side of the fourth longitudinal supporting rod, the fifth transverse supporting rod is positioned at the outer side of the third longitudinal supporting rod, and the outer side surface of the fifth transverse supporting rod is flush with the outer end surface of the fourth transverse supporting rod; a fifth plate slot is formed in the longitudinal direction of each of the two sides of the fifth transverse supporting rod in the longitudinal direction in a penetrating manner, and the fifth plate slot penetrates through the fourth transverse supporting rod; fifth plate inserting rails matched with the fifth plate inserting grooves are arranged at the two ends of the fifth plate, and the fifth plate is inserted into the fifth plate inserting grooves of the adjacent fifth transverse supporting rods through the fifth plate inserting rails at the two ends;

when the fourth plate and the fifth plate are matched with the framework, the lower side of the fifth plate extends to the upper side of the fourth longitudinal supporting rod, the upper side of the fifth plate extends to the upper side of the fourth transverse supporting rod, the inner side of the fourth plate extends to the outer side of the second longitudinal supporting rod, and the outer side of the fourth plate extends to the inner side of the fifth plate;

the inner end of the sixth transverse supporting rod is arranged at the outer side of the fourth longitudinal supporting rod, the outer end of the sixth transverse supporting rod extends to the outer side of the fifth longitudinal supporting rod, and the sixth transverse supporting rod is positioned above the fifth longitudinal supporting rod; sixth plate inserting grooves are formed in the two sides of the sixth transverse supporting rod in the longitudinal direction in a penetrating mode along the length direction of the sixth transverse supporting rod, sixth plate inserting rails used for being matched with the sixth plate inserting grooves are arranged at the two ends of the sixth plate, and the sixth plate is inserted into the sixth plate inserting grooves of the adjacent sixth transverse supporting rod through the sixth plate inserting rails at the two ends of the sixth plate;

the upper end of the seventh transverse supporting rod is arranged at the lower side of the sixth transverse supporting rod, the lower end of the seventh transverse supporting rod is arranged at the upper side of the sixth longitudinal supporting rod, the seventh transverse supporting rod is positioned at the outer side of the fifth longitudinal supporting rod, and the outer side surface of the seventh transverse supporting rod is flush with the outer end surface of the sixth transverse supporting rod; a seventh plate slot is formed in the longitudinal direction of each of the two sides of the seventh transverse supporting rod in the longitudinal direction in a penetrating manner along the length direction of the seventh transverse supporting rod, and the seventh plate slot penetrates through the sixth transverse supporting rod; seventh plate inserting rails matched with the seventh plate inserting grooves are arranged at the two ends of the seventh plate, and the seventh plate is inserted into the sixth plate inserting grooves of the adjacent seventh transverse supporting rods through the seventh plate inserting rails at the two ends;

when the sixth plate and the seventh plate are matched with the framework, the inner side of the sixth plate extends to the outer side of the fourth longitudinal supporting rod, the outer side of the sixth plate extends to the outer end face of the sixth transverse supporting rod, the lower side of the seventh plate extends to the upper side face of the sixth longitudinal supporting rod, and the upper side of the seventh plate extends to the lower side face of the sixth plate.

According to the invention, through the arrangement of the framework, the first plate, the second plate, the third plate, the fourth plate, the fifth plate, the sixth plate and the seventh plate can be supported better, so that the self strength of the splicing unit can be effectively improved, and the splicing unit can be formed better conveniently.

Preferably, the cross sections of the fourth board slot and the fourth board insertion rail, the fifth board slot and the fifth board insertion rail, the sixth board slot and the sixth board insertion rail, and the seventh board slot and the seventh board insertion rail are all configured to be T-shaped and matched with each other. This configuration enables the relevant components to be preferably fitted.

Preferably, a plurality of threaded columns are arranged on the upper side surface of the sixth plate at intervals along the longitudinal direction, and the threaded columns are vertically arranged; the outer side surface of the fifth plate is provided with a sleeve column corresponding to any one threaded column in a matched manner, and the sleeve column is arranged along the transverse direction; the outer end of the sleeve joint column is provided with a sleeve joint hole for being sleeved on the corresponding threaded column, and the threaded column is provided with a limit nut for limiting the sleeve joint column in a threaded fit manner.

According to the invention, the threaded columns and the sleeving columns are arranged in a matching manner, so that when the fifth plate and the sixth plate are assembled with the framework, the sixth plate can be firstly assembled and then the fifth plate is assembled, the threaded columns are matched with the corresponding sleeving columns, and then the positioning of the fifth plate and the sixth plate can be better realized by arranging the limiting nuts, so that the matching stability between the fifth plate and the framework as well as between the sixth plate and the framework can be better ensured.

Preferably, the upper side surface of the fourth plate is longitudinally and penetratingly provided with a first mounting groove for being matched with a sixth plate plug rail at one end of the sixth plate, one end of the upper side surface of the fourth plate in the longitudinal direction is transversely and penetratingly provided with a second mounting groove for being matched with a fifth plate plug rail at one end of the fifth plate, and the middle part of the upper side surface of the fourth plate in the longitudinal direction is transversely and penetratingly provided with a third mounting groove for being matched with a seventh plate plug rail at one end of the seventh plate;

the length of the third mounting groove at the inner part of the first mounting groove is basically equal to the width of the seventh plate;

when the sixth plate is matched with the first mounting groove, the threaded column faces outwards; the position of cup jointing post constructs, and when fifth board and second mounting groove cooperate, it can conflict the sixth inboard through stop nut to cup joint the post.

According to the invention, by arranging the first mounting groove, the second mounting groove and the third mounting groove, when the road splicing construction is carried out, the framework can be firstly built, then the seventh plate can be inserted into the third mounting groove and kept completely positioned at the inner side of the first mounting groove, then the sixth plate can be inserted into the first mounting groove, then the fifth plate can be inserted into the second mounting groove and kept matching the threaded column and the sleeve column and fastened through the limiting nut, and finally the fourth plate can be fixed at the framework. Through the above configuration, it is possible to form the isolation band at the spliced place by the fourth, fifth, sixth, and seventh plates during construction. As for the highway, in the widening construction, the protection is required to be communicated, and the old road is usually required to be communicated with a vehicle and constructed on a new road.

Drawings

Fig. 1 is a schematic cross-sectional view of a splicing structure body in example 1, in cooperation with an old road surface and a new road surface;

FIG. 2 is a schematic view of the construction of a splicing unit in embodiment 1;

FIG. 3 is a schematic view showing the construction of another view angle of the splicing unit in embodiment 1;

FIG. 4 is a schematic view of the skeleton in example 1;

FIG. 5 is a schematic view of the constitution of a second plate in embodiment 1;

FIG. 6 is a schematic configuration view of a fourth lateral support bar in embodiment 1;

FIG. 7 is a schematic configuration diagram of a fourth plate in example 1;

FIG. 8 is a schematic configuration view of a fifth lateral support bar in embodiment 1;

FIG. 9 is a schematic configuration diagram of a fifth plate in embodiment 1;

FIG. 10 is a schematic view showing the construction of a sixth lateral support bar in embodiment 1;

FIG. 11 is a schematic configuration diagram of a sixth plate in example 1;

FIG. 12 is a schematic view showing the construction of a seventh lateral support bar in embodiment 1;

FIG. 13 is a schematic configuration diagram of a seventh plate in embodiment 1;

fig. 14 is a schematic diagram of the fourth plate 134, the fifth plate 135, the sixth plate 136 and the seventh plate 137 in example 1 for constructing the isolation belt.

In the present invention, "upper" or the like for indicating the azimuth means a direction away from the ground surface, "lower" or the like for indicating the azimuth means a direction approaching the ground surface, "inner" for indicating the azimuth means a side approaching the old road surface, "outer" for indicating the azimuth means a side approaching the new road surface, "longitudinal" for indicating the direction means a longitudinal direction of the road, and "lateral" for indicating the direction means a width direction of the road. The use of directional terms as described above is preferred to facilitate a more concise description of the language and is not intended to limit the scope of the invention.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.