Wet joint guardrail capable of monitoring concrete state
By designing a wet joint guardrail with a concrete detection structure, the problem of time-consuming displacement of existing guardrails and inability to detect concrete settlement is solved, and convenient displacement of guardrails and accurate detection of concrete settlement is achieved, ensuring wet joints Accurate choice of seam construction timing.
Patent Information
- Application Number
- CN202411577644.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-02-18
AI Technical Summary
The existing wet joint guardrails need to be disassembled and assembled when displaced, which is time-consuming and cannot detect the concrete settlement difference, which affects the selection of wet joint construction timing.
A wet joint guardrail including reinforced concrete slab tracks and guardrails spliced with guardrails are designed. A concrete detection structure is provided on the guardrail, including a pulling pressure sensor and a bending moment elimination structure, which can detect the settlement and relative displacement of concrete.
It realizes convenient displacement of guardrails and concrete settlement detection, reduces monitoring difficulty, ensures accurate selection of wet joint construction timing, and reduces cracks during construction.
Smart Images
Figure CN119466365A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of construction engineering, and in particular to a wet joint guardrail capable of monitoring the state of concrete. Background Art
[0002] In bridges, slabs, walls, beams and other locations of concrete structures, the overall building structure is sometimes divided into multiple parts, and the multiple parts are connected by wet joints to eliminate cracks caused by uneven settlement, concrete shrinkage and other reasons between the parts of the structure. Before the concrete is poured, the wet joint is a huge gap in the building, which has a significant impact on production safety. Therefore, guardrails need to be set up for enclosure and isolation. When the existing guardrails are constructed in sections with long wet joints, they are dismantled and moved to the next wet joint, and then reinstalled for recycling. This method is time-consuming to install and remove the guardrails. In addition, choosing the timing of pouring wet joint concrete is an important task. The traditional practice is to pour the concrete of the wet joint when the daily settlement difference increment (vertical displacement difference) of the structures on both sides of the wet joint approaches zero and the concrete shrinkage is completed, so that the structure is connected as a whole. Therefore, during construction, it is necessary to monitor the settlement of the structures (concrete) on both sides of the wet joint to analyze their settlement difference and provide a basis for determining the pouring time. If the construction time of the wet joint is selected according to this method, cracks will still appear in the beams and slabs of the main structure. There are many reasons for this. First, the construction site environment is complex, and the settlement monitoring of the structure is often greatly disturbed by the construction, resulting in a large monitoring workload and inaccurate data, which has an adverse impact on the selection of the timing for wet joint construction. Second, factors such as temperature changes and concrete shrinkage have led to the lack of monitoring of the relative displacement of the structures on both sides of the wet joint, and the selection of the timing for pouring the wet joint lacks data support in this regard. The relative displacement of the structures on both sides of the wet joint includes the structural settlement difference, as well as the displacement caused by factors such as temperature changes and concrete shrinkage. The size and direction of the displacement caused by each factor are difficult to determine, and it is a comprehensive relative displacement. The existing guardrails cannot complete concrete monitoring at the same time, or whether they are suitable for the construction of wet joints. Summary of the invention
[0003] The present invention aims to provide a wet joint guardrail which is easy to shift and can detect concrete settlement and monitor the state of concrete, thereby solving the problem that the existing guardrail needs to be disassembled and assembled when shifting, which is time-consuming and cannot detect concrete settlement differences.
[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technology: a wet joint guardrail capable of monitoring the state of concrete, characterized in that it includes two tracks of reinforced concrete slabs arranged on both sides of the joint, the tracks extend along the extension direction of the joint, the tracks are provided with guardrails formed by splicing guardrail panels, the guardrail panels are supported on the tracks by walking wheels, and a concrete detection structure is provided between the two guardrails located on both sides of the joint, the concrete detection structure includes a tension and pressure sensor, a first moment elimination structure having one end connected to one end of the tension and pressure sensor, and a second moment elimination structure having one end connected to the other end of the tension and pressure sensor, one guardrail is connected to the other end of the first moment elimination structure, and the other guardrail is connected to the other end of the second moment elimination structure, the first moment elimination structure is provided with a first connecting through hole located above the reinforced concrete slab, and the second moment elimination structure is provided with a second connecting through hole located above the reinforced concrete slab. When in use, after a section of reinforced concrete with a hinged axis is poured, the present invention is installed for protection. The connecting pin passes through two connecting holes and is pressed against the concrete. The concrete detection structure is used to detect whether the concrete solidification meets the requirements. After the requirements are met, concrete is poured in the joint to form a wet joint. Then the guardrail is moved on the track to the next wet joint. The concrete detection structure moves with the guardrail, and the concrete detection structure does not need to be installed again when the position is changed. The displacement development is converted into a change in force by using a sensor, and the relative displacement size can be reflected by monitoring the force, which can reduce the difficulty of monitoring, especially when the displacement is small. This technology has more advantages. It can directly monitor the tension (or pressure) formed in the sensor by the comprehensive relative displacement of the reinforced concrete on both sides of the wet joint. When the force tends to be stable, it means that the comprehensive relative displacement tends to be stable, and the daily relative displacement increment tends to zero. At this time, the wet joint concrete can be poured.
[0005] Preferably, the first bending moment elimination structure comprises a first connecting rod of the first bending moment elimination structure part, one end of which is connected to the tension and pressure sensor, a ball head arranged on the other end of the first connecting rod of the first bending moment elimination structure, and a second connecting rod of the first bending moment elimination structure part, one end of which is spherically hinged on the ball head, the other end of the second connecting rod of the first bending moment elimination structure part is connected to the guardrail, and the first connecting through hole is arranged on the second connecting rod of the first bending moment elimination structure part. The torque and torque generated by factors such as the solidification of reinforced concrete on one side can be eliminated, so that the measured force is more accurate.
[0006] Preferably, the second bending moment elimination structure includes a first connecting rod of the second bending moment elimination structure part, one end of which is connected to the tension and pressure sensor, a second connecting rod of the second bending moment elimination structure part, two connecting plates and a plurality of intermediate connecting rods, one of the two connecting plates is connected to the other end of the first connecting rod of the second bending moment elimination structure part, the other connecting plate is connected to one end of the second connecting rod of the second bending moment elimination structure part, the other end of the second connecting rod of the second bending moment elimination structure part is connected to the guardrail, a second connecting through hole is provided on the second connecting rod of the second bending moment elimination structure part, the two ends of the intermediate connecting rod are correspondingly penetrated through the two connecting plates, two clamping nuts for clamping the connecting plates are provided at the two ends of the intermediate connecting rod, the clamping nut and the end extending beyond the connecting plate are provided with a spherical crown section with a spherical crown surface, the spherical surface of the spherical crown section is spherically fitted and penetrated in the connecting hole on the connecting plate.
[0007] Preferably, a first connecting bolt with its head facing upward is inserted into the first connecting through hole, a first connecting nut is threadedly connected to the first connecting bolt, and the first connecting nut is clamped on the first bending moment elimination structure in cooperation with the head of the first connecting bolt; a second connecting bolt with its head facing upward is inserted into the second connecting through hole, a second connecting bolt is threadedly connected to the second connecting nut, and the second connecting nut is clamped on the second bending moment elimination structure in cooperation with the head of the second connecting bolt. This can improve the accuracy of the transmission of the changes of reinforced concrete to the concrete detection structure.
[0008] Preferably, the guardrail panels are detachably connected together, and the lower end of the guardrail panels is provided with a horizontal water inlet pipe extending along the width direction of the guardrail panels, and the horizontal water inlet pipe is connected with a vertical water inlet pipe arranged in the guardrail panels, and the vertical water inlet pipe is connected with a spray structure, and the spray structure includes a vertical water outlet pipe connected with the vertical water inlet pipe and a plurality of horizontal water outlet pipes, and the horizontal water outlet pipe is provided with a nozzle for spraying water toward the wet joint, and one end of the horizontal water inlet pipe is provided with a water inlet interface, and the other end is provided with a water outlet interface; between adjacent guardrail panels, the water inlet interface of one guardrail panel and the water outlet interface of another guardrail panel are detachably connected together to realize the sealing docking of the horizontal water inlet pipes of adjacent guardrail panels. When in use, water is inputted into one end of the docked horizontal water inlet pipe through a water pump, and the other end of the horizontal water pipe is closed, and water is sprayed out from the nozzle to maintain concrete and wet joints. Thus, the fence structure can be used for water spraying and dust removal. Guardrails can be used to transport water to cure concrete and wet joints.
[0009] Preferably, the water inlet interface is an upper pipe head with an opening facing downward, and the water outlet interface is a lower pipe head with an opening facing upward. The upper end of the lower pipe head is provided with a tapered hole with an inner circumference that is a conical surface with a small lower end and a large upper end. A sealing ring is inserted into the tapered hole. The lower end of the upper pipe head is provided with a conical head with an outer circumference that is a conical surface with a large upper end and a small lower end. The conical head is inserted into the tapered hole and sealed and connected together by the sealing ring. Between adjacent guardrail panels, one guardrail panel is provided with a bolt hole and the other guardrail panel is provided with a threaded hole. The panel connecting bolts pass through the bolt holes and are threadedly connected in the threaded holes to fix the two adjacent guardrail panels together. The panel connecting bolts extend in the up-and-down directions, and the panel connecting bolts and the lower pipe head are staggered in the horizontal direction. This ensures that the connection of the horizontal water pipe will not cause inconvenience in assembling the fence unit. It is convenient to align the upper and lower water pipes when connecting them. The upper and lower water pipes cooperate with the connecting bolts to play a positioning role, so that the fence units can be installed and designed to be accurately docked together. Preferably, the surface of the guardrail sheet located on the wet joint side is connected with a drainage pipe and a plurality of dust collecting plates distributed up and down, the dust collecting plate is connected with the guardrail sheet at one end higher than the other end to form a water collecting trough, the water collecting trough is low at one end and high at the other end along the width direction of the guardrail sheet, the lower end of the dust collecting plate is provided with a water baffle, the water baffle is provided with a drainage hole connected with the water collecting trough, and the drainage hole is connected with the drainage pipe; the transverse water outlet pipes are located above the dust collecting plates one by one, and the side walls of the transverse water outlet pipes are provided with water spraying gaps extending along the extension direction of the transverse water outlet pipes and spraying water toward the dust collecting plates. Dust removal can be carried out to reduce the amount of dust overflow in the construction area.
[0010] Preferably, the water mist sprayed from the water spraying gap covers the entire upper surface of the dust collecting plate.
[0011] Preferably, an artificial sapling is laid on the dust receiving plate, the artificial sapling comprises a trunk connected to the dust receiving plate at one end and a plurality of rows of leaves connected to the trunk and distributed along the extension direction of the trunk, the leaves in the same row of leaves are distributed along the circumference of the trunk, and the upper surface of the leaves is provided with protrusions so that the upper surface of the leaves is a concave-convex surface, which can improve the dust removal effect.
[0012] Preferably, it also includes an air pump and an air extraction pipe connected to the inlet end of the air extraction pump, a water receiving chamber is provided inside the dust receiving plate, the water receiving chamber is provided with an air extraction port connected to the air extraction pipe, and the water receiving chamber is provided with a plurality of air extraction holes penetrating the upper surface of the dust receiving plate, so as to more reliably prevent dust from flying over the fence.
[0013] Beneficial effects: The whole can be accurately shifted during shifting; the settlement difference of concrete on both sides can be detected to easily know the timing of pouring wet joints. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a cross-sectional schematic diagram of the present invention; Figure 2 for Figure 1 A local enlarged schematic diagram of point A; Figure 3 for Figure 1 A local schematic diagram of point B; Figure 4 for Figure 3 A local enlarged schematic diagram of C; Figure 5 for Figure 3 A local enlarged schematic diagram of D; Figure 6 It is a schematic diagram of the concrete detection structure; Figure 7 for Figure 6 A local enlarged schematic diagram of E; Figure 8 It is a front view schematic diagram of the present invention; Fig. 9 for Figure 8 A local enlarged schematic diagram of F; Fig.10 for Fig. 9 A local enlarged schematic diagram of point G.
[0015] In the figure: joint 1, reinforced concrete slab 2, track 3, guardrail plate 4, guardrail 5, walking wheel 6, concrete detection structure 7, tension and pressure sensor 8, first bending moment elimination structure 9, second bending moment elimination structure 10, first connecting bolt 11, first connecting nut 12, head 13 of first connecting bolt, second connecting bolt 14, second connecting nut 15, head 16 of second connecting bolt, first connecting rod 17 of first bending moment elimination structure part, ball head 18, second connecting rod 19 of first bending moment elimination structure part, first connecting rod 20 of second bending moment elimination structure part, second connecting rod 21 of second bending moment elimination structure part , connecting plate 22, intermediate connecting rod 23, clamping nut 24, spherical crown section 25, connecting hole 26, horizontal water inlet pipe 27, vertical water inlet pipe 28, vertical water outlet pipe 29, horizontal water outlet pipe 30, nozzle 31, water inlet interface 32, water outlet interface 33, sealing ring 34, cone head 35, bolt hole 36, threaded hole 37, plate connecting bolt 38, drain pipe 39, dust collecting plate 40, water collecting trough 41, water baffle 42, drainage hole 43, water spraying gap 44, water mist 45, artificial sapling 46, trunk 47, leaves 48, protrusion 49, air pump 50, air suction pipe 51, water receiving cavity 52, air suction hole 54. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0017] See also Figures 1 to 10A wet joint guardrail capable of monitoring the state of concrete comprises two tracks 3 arranged on a reinforced concrete slab 2 on both sides of a joint 1, and the tracks extend along the extension direction of the joint. A guardrail 5 composed of guardrail panels 4 is arranged on the track, and the guardrail panels are supported on the track by running wheels 6. A concrete detection structure 7 is arranged between the two guardrails located on both sides of the joint, and the concrete detection structure comprises a tension and pressure sensor 8, a first moment elimination structure 9 having one end connected to one end of the tension and pressure sensor, and a second moment elimination structure 10 having one end connected to the other end of the tension and pressure sensor, one guardrail is connected to the other end of the first moment elimination structure, and the other guardrail is connected to the other end of the second moment elimination structure, the first moment elimination structure is provided with a first connecting through hole located above the reinforced concrete slab, and the second moment elimination structure is provided with a second connecting through hole located above the reinforced concrete slab. A first connecting bolt 11 with its head facing upward is inserted into the first connecting through hole, and a first connecting nut 12 is threadedly connected to the first connecting bolt. The first connecting nut cooperates with the head 13 of the first connecting bolt to clamp on the first bending moment elimination structure; a second connecting bolt 14 with its head facing upward is inserted into the second connecting through hole, and a second connecting nut 15 is threadedly connected to the second connecting bolt. The second connecting nut cooperates with the head 16 of the second connecting bolt to clamp on the second bending moment elimination structure. The first bending moment elimination structure includes a first connecting rod 17 of the first bending moment elimination structure part connected to the tension and pressure sensor at one end, a ball head 18 arranged on the other end of the first connecting rod of the first bending moment elimination structure, and a second connecting rod 19 of the first bending moment elimination structure part spherically hinged on the ball head at one end, the other end of the second connecting rod of the first bending moment elimination structure part is connected to the guardrail, and the first connecting through hole is arranged on the second connecting rod of the first bending moment elimination structure part. The second bending moment elimination structure includes a first connecting rod 20 of the second bending moment elimination structure part, one end of which is connected to the tension and pressure sensor, a second connecting rod 21 of the second bending moment elimination structure part, two connecting plates 22 and a plurality of intermediate connecting rods 23, one of the two connecting plates is connected to the other end of the first connecting rod of the second bending moment elimination structure part, and the other connecting plate is connected to one end of the second connecting rod of the second bending moment elimination structure part, the other end of the second connecting rod of the second bending moment elimination structure part is connected to the guardrail, a second connecting through hole is arranged on the second connecting rod of the second bending moment elimination structure part, two ends of the intermediate connecting rod are correspondingly penetrated through the two connecting plates, two clamping nuts 24 for clamping the connecting plates are provided at both ends of the intermediate connecting rod, and a spherical crown section 25 with a spherical crown surface is provided at the end of the clamping nut extending beyond the connecting plate, and the spherical surface of the spherical crown section is spherically matched and penetrated in the connecting hole 26 on the connecting plate.
[0018] When in use, after a section of reinforced concrete is poured, the present invention is installed for protection, and then the first connecting bolt and the second connecting bolt are fixed into the concrete. The concrete detection structure is used to detect whether the concrete solidification meets the requirements. If the requirements are met, concrete is poured into the joint to form a wet joint. Then the guardrail is moved on the track to the next wet joint.
[0019] The guardrail panels are detachably connected together, and a horizontal water inlet pipe 27 extending along the width direction of the guardrail panels is provided at the lower end of the guardrail panels. A vertical water inlet pipe 28 arranged in the guardrail panels is connected to the horizontal water inlet pipe, and the vertical water inlet pipe is connected to a spray structure. The spray structure includes a vertical water outlet pipe 29 connected to the vertical water inlet pipe and a plurality of horizontal water outlet pipes 30. The horizontal water outlet pipe is provided with a nozzle 31 for spraying water toward the wet joint, and a water inlet interface 32 is provided at one end of the horizontal water inlet pipe, and a water outlet interface 33 is provided at the other end; between adjacent guardrail panels, the water inlet interface of one guardrail panel and the water outlet interface of another guardrail panel can be detachably connected together to achieve the sealing of the horizontal water inlet pipes of adjacent guardrail panels. Specifically: the water inlet interface is an upper pipe head opening downward, the water outlet interface is a lower pipe head opening upward, the upper end of the lower pipe head is provided with a tapered hole with an inner circumference that is a tapered surface with a small lower end and a large upper end, a sealing ring 34 is passed through the tapered hole, and the lower end of the upper pipe head is provided with a cone head 35 with an outer circumference that is a tapered surface with a large upper end and a small lower end, the cone head is passed through the tapered hole and is sealed and connected together by the sealing ring; between adjacent guardrail panels, one guardrail panel is provided with a bolt hole 36, and the other guardrail panel is provided with a threaded hole 37 (specifically composed of a nut), and the panel connecting bolt 38 passes through the bolt hole and is threadedly connected in the threaded hole to fix the two adjacent guardrail panels together, the panel connecting bolt extends in the up and down direction, and the panel connecting bolt and the lower pipe head are staggered in the horizontal direction. The surface of the guardrail plate on the wet joint side is connected with a drainage pipe 39 and a plurality of dust collecting plates 40 distributed up and down. The dust collecting plate is connected to the guardrail plate at one end higher than the other end to form a water collecting trough 41. The water collecting trough is low at one end and high at the other end along the width direction of the guardrail plate. A water retaining plate 42 is provided at the lower end of the dust collecting plate. A drainage hole 43 connected to the water collecting trough is provided on the water retaining plate. The drainage hole is connected to the drainage pipe. The transverse water outlet pipes are located above the dust collecting plates one by one. The side walls of the transverse water outlet pipes are provided with water spraying slits 44 extending along the extension direction of the transverse water outlet pipes and spraying water toward the dust collecting plates. The water mist 45 sprayed from the water spraying slits covers the entire upper surface of the dust collecting plates. An artificial sapling 46 is laid on the dust receiving plate. The artificial sapling includes a trunk 47 connected to the dust receiving plate at one end and a plurality of rows of leaves 48 connected to the trunk and distributed along the extension direction of the trunk. The leaves in the same row are distributed along the circumference of the trunk. The upper surface of the leaves is provided with protrusions 49 so that the upper surface of the leaves is concave and convex. It also includes an air pump 50 and an air suction pipe 51 connected to the inlet end of the air pump. A water receiving chamber 52 is provided inside the dust receiving plate. The water receiving chamber is provided with an air suction port connected to the air suction pipe. The water receiving chamber is provided with a plurality of air suction holes 54 that pass through the upper surface of the dust receiving plate.
Claims
1. A wet joint guardrail capable of monitoring the state of concrete, characterized in that: It includes two tracks arranged on the reinforced concrete slab on both sides of the joint, the tracks extend along the extension direction of the joint, the tracks are provided with guardrails formed by splicing guardrail panels, the guardrail panels are supported on the tracks by walking wheels, and a concrete detection structure is provided between the two guardrails located on both sides of the joint, the concrete detection structure includes a tension and pressure sensor, a first bending moment elimination structure whose one end is connected to one end of the tension and pressure sensor, and a second bending moment elimination structure whose one end is connected to the other end of the tension and pressure sensor, one guardrail is connected to the other end of the first bending moment elimination structure, and the other guardrail is connected to the other end of the second bending moment elimination structure, the first bending moment elimination structure is provided with a first connecting through hole located above the reinforced concrete slab, and the second bending moment elimination structure is provided with a second connecting through hole located above the reinforced concrete slab.
2. A wet joint guardrail capable of monitoring the state of concrete according to claim 1, characterized in that: The first bending moment elimination structure includes a first connecting rod of the first bending moment elimination structure part, one end of which is connected to the tension and pressure sensor, a ball head arranged on the other end of the first connecting rod of the first bending moment elimination structure, and a second connecting rod of the first bending moment elimination structure part, one end of which is spherically hinged on the ball head, the other end of the second connecting rod of the first bending moment elimination structure part is connected to the guardrail, and a first connecting through hole is arranged on the second connecting rod of the first bending moment elimination structure part.
3. A wet joint guardrail capable of monitoring the state of concrete according to claim 1 or 2, characterized in that: The second bending moment elimination structure includes a first connecting rod of the second bending moment elimination structure part, one end of which is connected to the tension and pressure sensor, a second connecting rod of the second bending moment elimination structure part, two connecting plates and a plurality of intermediate connecting rods, one of the two connecting plates is connected to the other end of the first connecting rod of the second bending moment elimination structure part, the other connecting plate is connected to one end of the second connecting rod of the second bending moment elimination structure part, the other end of the second connecting rod of the second bending moment elimination structure part is connected to the guardrail, a second connecting through hole is provided on the second connecting rod of the second bending moment elimination structure part, the two ends of the intermediate connecting rod are correspondingly penetrated through the two connecting plates, the two ends of the intermediate connecting rod are provided with two clamping nuts for clamping the connecting plates, the clamping nut and the end extending beyond the connecting plate are provided with a spherical crown section with a spherical crown surface, the spherical surface of the spherical crown section is spherically matched and penetrated in the connecting hole on the connecting plate.
4. A wet joint guardrail capable of monitoring the state of concrete according to claim 1 or 2, characterized in that: A first connecting bolt with its head facing upward is passed through the first connecting through hole, and the first connecting bolt is threadedly connected to a first connecting nut, and the first connecting nut cooperates with the head of the first connecting bolt to be clamped on the first bending moment elimination structure; a second connecting bolt with its head facing upward is passed through the second connecting through hole, and the second connecting bolt is threadedly connected to a second connecting nut, and the second connecting nut cooperates with the head of the second connecting bolt to be clamped on the second bending moment elimination structure.
5. A wet joint guardrail capable of monitoring concrete status according to claim 1, characterized in that: The guardrail panels are detachably connected together, and a horizontal water inlet pipe extending along the width direction of the guardrail panels is provided at the lower end of the guardrail panels. A vertical water inlet pipe arranged in the guardrail panels is connected to the horizontal water inlet pipe, and the vertical water inlet pipe is connected to a spray structure. The spray structure includes a vertical water outlet pipe connected to the vertical water inlet pipe and a plurality of horizontal water outlet pipes. The horizontal water outlet pipe is provided with a nozzle spraying water toward the wet joint, and a water inlet interface is provided at one end of the horizontal water inlet pipe and a water outlet interface is provided at the other end; between adjacent guardrail panels, the water inlet interface of one guardrail panel and the water outlet interface of another guardrail panel can be detachably connected together to achieve the sealed docking of the horizontal water inlet pipes of adjacent guardrail panels.
6. A wet joint guardrail capable of monitoring the state of concrete according to claim 5, characterized in that: The water inlet interface is an upper pipe head opening downward, and the water outlet interface is a lower pipe head opening upward. The upper end of the lower pipe head is provided with a tapered hole with an inner circumference that is a conical surface with a small lower end and a large upper end. A sealing ring is passed through the tapered hole. The lower end of the upper pipe head is provided with a conical head with an outer circumference that is a conical surface with a large upper end and a small lower end. The conical head is passed through the tapered hole and is sealed and connected together by the sealing ring. Between adjacent guardrail panels, one guardrail panel is provided with a bolt hole and the other guardrail panel is provided with a threaded hole. After the panel connecting bolt passes through the bolt hole, it is threadedly connected in the threaded hole to fix the two adjacent guardrail panels together. The panel connecting bolt extends in the up and down direction, and the panel connecting bolt and the lower pipe head are staggered in the horizontal direction.
7. A wet joint guardrail capable of monitoring concrete status according to claim 5, characterized in that: The surface of the guardrail plate on the wet joint side is connected with a drainage pipe and a plurality of dust collecting plates distributed up and down, the dust collecting plate having one end connected to the guardrail plate higher than the other end to form a water collecting trough, one end of the water collecting trough along the width direction of the guardrail plate is low and the other end is high, a water baffle is provided at the lower end of the dust collecting plate, drainage holes connected to the water collecting trough are provided on the water baffle, and the drainage holes are butt-jointed with the drainage pipe; the lateral water outlet pipes are correspondingly located above the dust collecting plates, and the side walls of the lateral water outlet pipes are provided with water spraying gaps extending along the extension direction of the lateral water outlet pipes for spraying water toward the dust collecting plates.
8. A wet joint guardrail capable of monitoring concrete status according to claim 7, characterized in that: The water mist sprayed from the water spraying gap covers the entire upper surface of the dust receiving plate.
9. A wet joint guardrail capable of monitoring concrete status according to claim 7, characterized in that: An artificial sapling is laid on the dust receiving plate, and the artificial sapling includes a trunk connected to the dust receiving plate at one end and a plurality of rows of leaves connected to the trunk and distributed along the extension direction of the trunk, the leaves in the same row of leaves are distributed along the circumference of the trunk, and the upper surface of the leaves is provided with protrusions so that the upper surface of the leaves is a concave-convex surface.
10. A wet joint guardrail capable of monitoring concrete status according to claim 9, characterized in that: It also includes an air pump and an air suction pipe connected to the inlet end of the air suction pump. The dust receiving plate is provided with a water receiving chamber, the water receiving chamber is provided with an air suction port connected to the air suction pipe, and the water receiving chamber is provided with a plurality of air suction holes that pass through the upper surface of the dust receiving plate.