Protection structure of sensor circuit between deformation joints of long-piled wharf
By using a pre-embedded protective structure in the expansion joint of the high-pile wharf, including an outer flexible hose, an inner flexible hose, filler material, and an adhesive layer, the problems of easy damage to sensor lines and environmental erosion are solved, achieving good flexibility and corrosion resistance, and reducing construction and maintenance costs.
Patent Information
- Application Number
- CN202520164913.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing protection methods for sensor circuits in expansion joints of high-pile wharves are unable to withstand the pressure caused by structural deformation, are easily damaged, cannot adapt to structural expansion and contraction, and are susceptible to environmental corrosion.
The protective structure is embedded in the surface concrete and includes an outer hose, an inner hose, an inner filler, an outer filler, and an adhesive layer. The outer and inner hoses are PVC steel wire pipes, the inner filler is polyurethane foam, the outer filler is polyurethane foam mixed with glass fiber, and the adhesive layer is plastic adhesive and medium sand. It is designed to be flexible and corrosion resistant, and adaptable to structural deformation and environmental erosion.
The sensor circuitry achieves flexibility and corrosion resistance, enabling it to adapt to structural deformation at the dock and reducing construction difficulty and maintenance costs.
Smart Images
Figure CN223858783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a protection structure for sensor circuits in expansion joints of high-pile wharves. Background Technology
[0002] As a core facility in port engineering, the stability and safety of high-pile wharves are of paramount importance. During long-term operation, the superstructure of high-pile wharves will deform due to factors such as temperature changes, load effects, and foundation settlement. Expansion joints are necessary to release this deformation and maintain structural stability. Sensors are installed at these expansion joints to monitor the wharf structure's quality in real time. However, the sensor wiring at the expansion joints faces significant challenges, as it must withstand the tensile and compressive forces caused by structural deformation and resist the corrosive effects of harsh environments.
[0003] Currently, the protection of sensor wiring embedded in expansion joints at high-pile wharves mainly relies on traditional methods, such as simple wrapping or fixing. These methods have significant shortcomings: they cannot withstand the pressure from structural deformation, easily leading to wiring damage, and may restrict the wiring's flexibility, making it unable to adapt to structural deformation. With the development of port engineering technology, new expansion joint structures are constantly emerging, such as inverted T-shaped beam structures, but these new structures still face technical challenges in protecting sensor wiring. Utility Model Content
[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a protective structure for the sensor circuit in the expansion joint of a high-pile wharf. It not only has good flexibility, corrosion resistance and wear resistance, but also has the characteristics of easy installation and maintenance.
[0005] The purpose of this utility model is achieved as follows: a protective structure for sensor circuits in expansion joints of high-pile wharves, pre-embedded in the surface concrete, includes an outer flexible tube, an inner flexible tube, an inner filler, an outer filler, and an adhesive layer; wherein,
[0006] The two ends of the external flexible hose are inserted one-to-one into two symmetrical holes in the surface concrete on both sides of the expansion joint.
[0007] The outer diameter of the inner hose is smaller than the inner diameter of the outer hose, and the inner hose is coaxially inserted into the inner cavity of the outer hose.
[0008] The sensor wiring is routed through the inner flexible tube;
[0009] The inner filler is filled between the inner hose and the sensor circuit, so that the sensor circuit is located on the axis of the inner hose;
[0010] The outer filler is filled between the outer hose and the inner hose;
[0011] The adhesive layer is coated on the outer surface of the outer hose.
[0012] The protection structure of the sensor line between the deformation joints of the high-pile wharf, wherein the length of the inner hose is less than the length of the outer hose but greater than the width of the deformation joint.
[0013] The protection structure of the sensor line between the deformation joints of the high-pile wharf, wherein the inner filler is polyurethane foam.
[0014] The protection structure of the sensor line between the deformation joints of the high-pile wharf, wherein the outer filler is polyurethane foam mixed with 10% glass fiber.
[0015] The protection structure of the sensor line between the deformation joints of the high-pile wharf, wherein the outer hose and the inner hose are both PVC steel wire pipes, and the outer surface of the outer hose is a capillary rough surface; the adhesive layer comprises a plastic adhesive coated on the outer surface of the outer hose and medium sand sprinkled on the outer surface of the plastic adhesive.
[0016] The protection structure of the sensor line between the deformation joints of the high-pile wharf has the characteristics that the structural features of the deformation joint, the protection requirements of the sensor line and environmental factors are comprehensively considered, good flexibility, corrosion resistance and wear resistance are achieved, the wharf structure deformation and environmental erosion can be resisted, and the structure has the characteristics of easy installation and maintenance, and reduces construction difficulty and operation and maintenance cost. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a schematic view of the protection structure of the sensor line between the deformation joints of the high-pile wharf. DETAILED DESCRIPTION
[0018] The protection structure of the sensor line between the deformation joints of the high-pile wharf will be further described below with reference to the drawings.
[0019] Please refer to Figure 1 The protection structure of the sensor line between the deformation joints of the high-pile wharf is embedded in the wharf surface layer concrete and comprises an outer hose 1, an inner hose 2, an inner filler 4, an outer filler 5 and an adhesive layer 6.
[0020] The outer hose 1 is a PVC steel wire pipe, and the outer surface of the outer hose 1 is a capillary rough surface. The two ends of the outer hose 1 are correspondingly arranged in the plug holes of the wharf surface layer concrete symmetrically arranged on the two sides of the deformation joint 7.
[0021] The inner hose 2 is also a PVC steel wire pipe. The outer diameter of the inner hose 2 is less than the inner diameter of the outer hose 1, the length of the inner hose 2 is less than the length of the outer hose 1 but greater than the width of the deformation joint 70, and the inner hose 2 is arranged in the inner cavity of the outer hose 1.
[0022] The sensor line 3 is arranged in the inner hose 2, and the sensor line 3 should be ensured to have a surplus of at least 10 mm in the inner hose 1.
[0023] The inner filler 4 is filled between the inner hose 2 and the sensor line 3, and the sensor line 3 is arranged on the axis of the inner hose 2; the inner filler 4 is polyurethane foam.
[0024] The outer filler 5 is filled between the outer hose 1 and the inner hose 2, and the inner hose 2 is coaxial with the outer hose 1; the outer filler 5 is polyurethane foam mixed with 10% glass fiber.
[0025] The adhesive layer 6 is coated on the outer surface of the outer hose 1, and the adhesive layer 6 comprises a plastic adhesive coated on the outer surface of the outer hose 1 and medium sand scattered on the outer surface of the plastic adhesive.
[0026] The protection structure of the sensor line between the deformation joints of the high-pile wharf of the utility model comprises the following steps during construction:
[0027] 1. Before pouring the surface layer concrete of the wharf structure section 8, a through hole is symmetrically arranged on the surface layer formwork 7 on both sides of the deformation joint 80 where the sensor line 3 needs to pass through, and the diameter of the through hole should be adjusted according to the number of the sensor lines that need to pass through, but should not exceed 50 mm.
[0028] 2. The outer surface of the outer hose 1 with a length of 50 cm, a hole diameter of 50 mm and a thickness of not less than 5 mm is first roughened to form a capillary rough surface, so as to improve the adhesion of the outer surface of the outer hose 1 to the surface layer concrete of the wharf, and then the two ends of the outer hose 1 are respectively arranged in the through holes of the surface layer formwork 7 on both sides of the deformation joint 80, and the lengths of the two ends of the outer hose 1 on both sides of the deformation joint 80 should be ensured to be the same.
[0029] 3. The inner hose 2 with a length of 30 cm, a hole diameter of 30 mm and a thickness of not less than 5 mm is arranged in the outer hose 1, and the lengths of the two ends of the inner hose 2 on both sides of the deformation joint 80 should be ensured to be the same.
[0030] 4. The sensor line 3 that needs to pass through the deformation joint 80 is first arranged in the inner hose 2, and then the inner filler 4 (polyurethane foam) is filled in the inner hose 2 to ensure that the sensor line 3 is arranged on the axis of the inner hose 1.
[0031] 5. After the inner filler 4 in the inner hose 2 is solidified, the outer filler 5 is filled in the outer hose 1 under the premise that the inner hose 2 is arranged on the axis of the outer hose 1, and the outer filler 5 should be ensured to have a surplus to overflow from the two ends of the outer hose 1 to prevent the surface layer concrete of the wharf from flowing into the outer hose 1.
[0032] 6. After the outer filler 5 solidifies, the outer hose 1 is fixed with the surface layer template 7 or surface layer steel bar by binding, so that the outer hose 1 does not deviate during pouring of the wharf surface layer concrete.
[0033] 7. A layer of plastic adhesive is brushed on the outer surface of the outer hose 1, and then a layer of medium sand is sprinkled on the plastic adhesive to form a bonding layer 6, so as to increase the bonding force between the outer hose 1 and the wharf surface layer concrete, and then the wharf surface layer concrete is poured, so that the whole protection structure is buried in the wharf surface layer concrete except a small section between the deformation joints 80.
[0034] The above examples are only used for illustrating the utility model, and are not used for limiting the utility model. The skilled in the art can make various changes or modifications without departing from the spirit and scope of the utility model. Therefore, all equivalent technical solutions should belong to the scope of the utility model, and should be limited by the claims.
Claims
1. A protection structure of a sensor line between deformed joints of a high-pile wharf, embedded in a surface concrete layer and comprising an outer hose, an inner hose, an inner filler, an outer filler and an adhesive layer, characterized in that, two ends of the outer hose are respectively inserted into two holes symmetrically formed in the surface concrete layer on both sides of the deformed joint; an outer diameter of the inner hose is smaller than an inner diameter of the outer hose, and the inner hose is coaxially inserted into the inner cavity of the outer hose; the sensor line is inserted into the inner hose; the inner filler is filled between the inner hose and the sensor line, so that the sensor line is located on the axis of the inner hose; the outer filler is filled between the outer hose and the inner hose; the adhesive layer is coated on the outer surface of the outer hose.
2. The protection structure for the sensor line between the deformation joints of the high-pile wharf according to claim 1, characterized in that, A length of the inner hose is smaller than a length of the outer hose but larger than a width of the deformed joint.
3. The protection structure for the sensor line between the deformation joints of the high-pile wharf according to claim 1, characterized in that, The inner filler is polyurethane foam.
4. The protection structure for the sensor line between the deformation joints of the high-pile wharf according to claim 1, characterized in that, The outer filler is polyurethane foam mixed with 10% glass fiber.
5. The protection structure for the sensor line between the deformation joints of the high-pile wharf according to claim 1 or 2, characterized in that, The outer hose and the inner hose are both PVC steel wire pipes, and the outer surface of the outer hose is a capillary rough surface; the adhesive layer comprises a plastic adhesive coated on the outer surface of the outer hose and medium sand scattered on the outer surface of the plastic adhesive.