Search

CN-121976443-A - Water-stable base layer structure capable of resisting pavement joint diseases and construction method thereof

CN121976443ACN 121976443 ACN121976443 ACN 121976443ACN-121976443-A

Abstract

The invention relates to the technical field of pavement structures, in particular to a water-stable base layer structure capable of resisting diseases at pavement joints and a construction method thereof, which solve the technical problems of the water-stable base layer structure and related construction methods of pavement cracks caused by the formation of comprehensive diseases caused by water damage in the absence of the water-stable base layer in the prior art, and specifically comprise the steps of completing the configuration of a base layer and a foundation mat layer in a construction lofting area, and prefabricating a center calibration part in the process; the construction of the lower stable base layer is implemented after the substrate layer is embedded into the side support template, the water guide assembly is installed on the side support template, the water guide pipe is arranged in place, the second protruding part is installed and arranged, the gravel layer connecting component is connected, the second protruding part is connected with the center calibration component, the horizontal rod is arranged, the first protruding part is connected and arranged through the gravel layer connecting component, the first protruding part is correspondingly matched with the center calibration component, the paving of the gravel layer on the upper layer is further completed, and the construction of the upper stable base layer and the surface layer is completed.

Inventors

  • Guan Guangbin
  • LI JINWEI
  • SUN LIQIANG
  • CHEN NAN
  • XU PENGCHENG
  • WANG XUEHUI

Assignees

  • 中交建筑集团有限公司
  • 中交雄安建设有限公司

Dates

Publication Date
20260505
Application Date
20260209

Claims (10)

  1. 1. A water stable infrastructure resistant to pavement joint failure comprising: a basal layer (1) on which a foundation mat (2) is laid; The side support templates (10), the side support templates (10) are arranged on two sides of the foundation mat layer (2), the side support templates (10) are embedded into the basal layer (1), the side support templates (10) are connected with water guide components (20), one ends of water guide pipes (201) of the water guide components (20) are located in the gravel layer (3), and the other ends of the water guide pipes penetrate out of the side support templates (10); A plurality of gravel layer connecting members (30) arranged at intervals along the pavement paving direction, wherein each group of gravel layer connecting members (30) is correspondingly connected with one group of water guide pipes (201) in the radial direction, and each group of gravel layer connecting members (30) can be connected with a first protruding part (100) and a second protruding part (200) which are arranged in a staggered mode; -the first raised member (100) and the second raised member (200) each have a plurality of arcuate projections (1020) arranged in succession; the arc-shaped protrusions (1020) of the first protruding part (100) are arranged towards the surface layer (4), and the arc-shaped protrusions (1020) of the second protruding part (200) are arranged towards the substrate layer (1); The first protruding parts (100) and the second protruding parts (200) are far away from one end of the side support template (10) and are in staggered contact with a center calibration part (40), and a horizontal rod (401) can be connected between the center calibration parts (40) along the pavement paving direction in a penetrating mode.
  2. 2. The pavement joint failure resistant water stable infrastructure of claim 1, wherein the first raised features (100) and the second raised features (200) have the same continuous raised structure; the continuous protruding structure is formed by alternately connecting arc-shaped protrusions (1020) and connecting sheets (1021), the continuous protruding structure is located in the gravel layer (3), and gaps between the first protruding parts (100) and the second protruding parts (200) are filled with bedding gravel.
  3. 3. The pavement joint failure resistant water stable foundation structure of claim 2, wherein said first raised elements (100) are positioned above said second raised elements (200) with a height differential therebetween.
  4. 4. A pavement joint failure resistant water stable infrastructure as set forth in claim 3 wherein said center calibration component (40) comprises: an embedded support rod (41) penetrating through the crushed stone layer (3), the sewer steady base layer (5) and the foundation mat layer (2), wherein the embedded support rod (41) is used as a marker, and the lofting is positioned at the center of a laying position; the embedded support rods (41) comprise a plurality of embedded support rods which are arranged along the road paving direction; The center block (42) is connected above the embedded support rod (41), a horizontal rod connecting hole (402) is formed in the center block (42), and the horizontal rod (401) can penetrate through the horizontal rod connecting hole (402) to serve as a support ridge.
  5. 5. The pavement joint failure resistant water stable foundation structure of claim 4, wherein two parallel plates (43) are connected to each side of the center block (42); Two groups of parallel plates (43) positioned at one side of the center block (42) are arranged in a staggered way and are used for correspondingly contacting the staggered plates (44) which are arranged in a staggered way; The end of the connecting sheet (1021) is connected with the dislocation board (44).
  6. 6. The pavement joint failure resistant water stable infrastructure of claim 5, wherein said water conducting assembly (20) further comprises: The side support templates (10) are connected with a plurality of groups of sleeves (11) at intervals along the laying direction, and each group of sleeves (11) is internally penetrated with a group of water guide pipes (201); the part of the water guide pipe (201) positioned outside the side support template (10) can be connected with a plugging cap (202); A flexible filling layer (203) is arranged between the water guide pipe (201) and the sleeve (11).
  7. 7. The pavement joint failure resistant water stable infrastructure of claim 6, wherein the crushed stone layer connecting means (30) comprises: A bending connection member (31) having one end vertically connected to the radial direction of the water guide pipe (201) and the other end extending toward the upper layer of the crushed stone layer (3); the bending connecting member (31) forms a forked connecting portion (301) at the part extending to the upper layer of the crushed stone layer (3), and the forked connecting portion (301) is connected with a positioning plate (302).
  8. 8. The water stabilization infrastructure capable of resisting pavement joint damage as claimed in claim 7, wherein the positioning plate (302) is provided with positioning screw holes (303); Connecting screw holes (304) are formed in connecting pieces (1021) of the first protruding part (100) and the second protruding part (200); and the positioning connecting screw rod (305) can be screwed on the positioning screw hole (303) and the connecting screw hole (304) and is connected with the locking nut (306).
  9. 9. A water stable substructure resistant to pavement joint failure as claimed in claim 8, wherein the bottom edge of the sleeve (11) cross section serves as the laying boundary of the sewer stable base layer (5) and the crushed stone layer (3).
  10. 10. A construction method of a water stable base structure capable of resisting pavement joint diseases by using the water stable base structure according to claim 9, which is characterized by comprising the following paving construction steps: S101, completing configuration of a basal layer (1) and a foundation mat layer (2) in a construction lofting area, and prefabricating a center calibration part (40) in the process; After the substrate layer (1) is embedded into the side support template (10), the construction of the stable foundation layer (5) is implemented, after the construction of the stable foundation layer (5) is completed, a water guide component (20) is installed on the side support template (10), and a water guide pipe (201) is configured in place; S102, taking the position of a water guide pipe (201) as a position to conveniently lay a lower-layer gravel layer (3), installing and arranging a second protruding part (200), connecting a gravel layer connecting component (30), connecting the second protruding part (200) with a center calibrating component (40), and configuring a horizontal rod (401); s103, connecting and arranging first protruding parts (100) through the gravel layer connecting members (30), and correspondingly matching the first protruding parts (100) with the center calibration parts (40), so as to further finish paving of the upper gravel layer (3); s104, finishing the construction of the water-feeding stable base layer (6) and finishing the construction of the surface layer (4).

Description

Water-stable base layer structure capable of resisting pavement joint diseases and construction method thereof Technical Field The invention relates to the technical field of pavement structures, in particular to a water-stable base layer structure capable of resisting pavement joint diseases and a construction method thereof. Background The water stable base layer, namely the cement stable base layer, belongs to a semi-rigid structural layer, is mainly used for the foundation construction of highway pavement, is positioned below the asphalt surface layer, and has the core functions of dispersing vehicle load, preventing water seepage and improving the overall structural stability; cement is used as a cementing material or a binder, and the cementing material is mixed with aggregate such as graded broken stone, gravel, slag and the like according to the weight ratio (the cement accounts for 3% -6% in general), and the cementing material is formed by a paving and compacting process after being mixed with water, and has the characteristics of high strength, high rigidity, good plate body property, water resistance, freezing resistance and rapid increase of initial strength; the pavement of the water-stable base layer is easy to generate diseases at joints, when joint compound fails or roadbed subsides unevenly, longitudinal joints can be opened or even staggered, and main pavement joint damage forms comprise longitudinal joint opening, mud pumping void, joint cracking and the like; Regarding the reason for forming the disease, if mud pumping is generated, after rainwater permeates into the joint, a high-pressure water column is formed under the rolling of the wheels, and the base fine materials are washed out to form slurry, so that the bottom of the plate is emptied, and more cracks are further caused; the occurrence of the phenomenon of arch is hindered by expansion of concrete in summer and the plate at the joint is suddenly raised, and the occurrence of the dislocation is not only the construction deviation of the expansion joint, but also the uneven settlement caused by insufficient load transfer capacity, and the phenomenon of crushing the concrete in the range of the road joint is finally formed by the diseases, which is caused by the common damage of the strength, the temperature and the water; In the prior art, the publication number CN218812946U, chinese patent application, the patent name of "water stable base layer with anti-cracking function", comprises a crushed stone layer, a concrete layer, a gravel layer and an asphalt coarse material layer which are distributed from bottom to top in sequence. The concrete layer is including a plurality of cement stabilization gravel layers of laying along road length direction, and main anti-crack principle is that the gravel layer can play the function of buffering extrusion and fluffing the road surface ponding, and the frame can restrict the excessive skew of gravel layer, and the steady basic layer of water of road has certain elasticity, can effectively reduce the road and produce the crack, and in this scheme, the rigid structure that the frame provided is high to the demand of location, and its intensity function that provides is limited to the support that forms to high pressure, does not provide effectual disposal mode to mud pumping etc. water damage. Disclosure of Invention The invention aims to solve the technical problems of a water-stable base layer structure and a related construction method of pavement cracks caused by the formation of comprehensive diseases caused by water damage in the absence of a water-stable base layer in the prior art, and provides a water-stable base layer structure capable of resisting diseases at pavement joints and a construction method thereof. In order to solve the technical problems, the technical scheme of the invention is as follows: Firstly, a water stabilization basic structure capable of resisting pavement joint diseases comprises: A basal layer, on which a foundation mat is laid; the side support templates are arranged on two sides of the foundation mat layer and embedded into the basal layer, the side support templates are connected with a water guide assembly, one end of a water guide pipe of the water guide assembly is positioned on the rubble layer, and the other end of the water guide pipe of the water guide assembly penetrates out of the side support templates; The pavement paving device comprises a plurality of gravel layer connecting members which are arranged at intervals along the pavement paving direction, wherein each group of gravel layer connecting members are correspondingly connected with a group of water guide pipes in the radial direction, and each group of gravel layer connecting members can be connected with a first protruding part and a second protruding part which are arranged in a staggered manner; The first protruding part and the second protruding part are provided with a plurality