High-speed railway sound barrier hidden danger renovation sound absorption unit plate replacement method

Abstract

The invention provides a high-speed railway sound barrier hidden danger renovation sound absorption unit plate replacement method which comprises the following steps: S1, dividing a construction range into a plurality of construction sections by combining an engineering design drawing, S2, arranging a safety protection device and a conveying device on a bridge, and S3, transferring unit plates to an operation point in a classified manner according to models and specifications; s4, the old plate is placed below the bridge, S5, sundries in the H-shaped steel stand column are cleaned, and S6, the unit plate is aligned with the H-shaped steel stand column by adjusting the position of the unit plate and placed downwards; the method is used for guiding high-speed railway sound barrier hidden danger treatment unit plate replacement construction, sound barrier replacement is carried out on the premise that normal operation of a business line is ensured, potential safety hazards are reduced, and high-speed railway equipment quality and operation safety are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of high-speed railway enclosures, and in particular relates to a method for replacing sound-absorbing unit plates for tackling hidden dangers of high-speed railway sound barriers. Background Art

[0002] The setting of sound barriers can prevent the spread of noise generated by high-speed trains, and effectively absorb and isolate noise within the sound barrier setting section. Therefore, setting up sound barriers in noise-sensitive areas to control noise radiation is an effective measure for environmental protection. However, the wind pressure generated by the operation of high-speed railways will cause the sound barriers to shake and deteriorate, and even cause cracks, breakage, falling blocks, exposed steel bars, insufficient embedding depth, and slits, which will cause great safety hazards to driving safety. Due to the particularity of operating line construction, the effective operation time for unit board replacement is short, the construction organization is difficult, and it is difficult to coordinate construction and transportation safety.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and the present invention provides a method for replacing sound-absorbing unit panels for remediation of hidden dangers of high-speed railway sound barriers.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A method for replacing a sound-absorbing unit plate for remediation of hidden dangers of a high-speed railway sound barrier comprises the following steps:

[0007] Step S1, dividing the construction scope into multiple construction sections in combination with the engineering design drawings, and arranging the production and processing of the unit panels according to the actual on-site survey and measurement results;

[0008] Step S2, installing safety protection devices and conveying devices on the bridge, setting up a protection area under the bridge, and stacking the construction materials in the protection area by classification;

[0009] Step S3, using a lifting device to lift the unit panels under the bridge onto the bridge at a designated location, and transporting the unit panels to the operation point according to the types and specifications;

[0010] Step S4, clamp the old plate with the lifting fixture, use the crowbar to help the old plate to be lifted out of the H-shaped steel column, use the wind rope on the fixture to control the steering of the old plate, and lower the old plate under the bridge until the old plate inside the same construction section is completely removed;

[0011] Step S5, cleaning the internal debris of the H-shaped steel column, and re-measuring the verticality and surface flatness of the H-shaped steel column;

[0012] Step S6: Lift the unit plate using a hoisting device, align the unit plate with the H-shaped steel column by adjusting the position of the unit plate, and then lower it.

[0013] Step S7: Repeat Steps S3 - S6 to complete the replacement of unit plates within multiple construction segments.

[0014] Preferably, in Step S7, after the replacement of unit plates in the same construction segment is completed, quality acceptance is carried out.

[0015] Preferably, in Step S1, before construction, soft isolation is carried out on the trench covers, catenary wires, and trackside equipment on the bridge using cotton quilts, and then hard isolation is carried out using wooden boxes. The cotton quilts and wooden boxes are recycled according to the construction progress.

[0016] Preferably, in Step S1, the construction progress is arranged according to the high-speed rail timetable, and sufficient time is reserved for evacuating the line.

[0017] Preferably, construction workers hang safety ropes, and the safety ropes are connected to the high-speed rail retaining wall through fixing devices. Multiple fixing devices are spaced apart on the high-speed rail retaining wall. During the high-speed rail operation period, personnel evacuate, and the fixing devices remain on the retaining wall. During the construction period, workers enter the site and connect the safety ropes to the corresponding fixing devices.

[0018] Preferably, a fixing device is set every 10 meters.

[0019] Preferably, the hoisting device includes a base and a boom. The base is fixed on the high-speed rail retaining wall. The lower end of the boom is rotatably connected to the base. An adjusting rod is provided at the front end of the boom. One end of the adjusting rod is hinged to the boom, and the other end is connected to the boom through a pull rod. Thus, the longitudinal projection distance between the front end of the adjusting rod and the base is adjusted by the telescoping of the pull rod.

[0020] Preferably, the fixture has a certain length, and a guy rope is provided at each end of the fixture.

[0021] Beneficial effects: It is used to guide the replacement construction of unit plates for potential hazards rectification of high-speed railway sound barriers, carry out the removal and replacement of sound barriers on the premise of ensuring the normal operation of the operating line, reduce potential safety hazards, and ensure the quality of high-speed railway equipment and operation safety. Description of the Drawings

[0022] The attached drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. Among them:

[0023] Figure 1 It is a structural schematic diagram of the hoisting device in the specific embodiment provided by the present invention;

[0024] Figure 2Schematic diagram of the structure of the lifting device in the specific embodiment provided by the present invention;

[0025] Figure 3 Schematic diagram of the structure of the fixing device in the specific embodiment provided by the present invention.

[0026] In the figure: 1, column; 2, base; 3, fastener; 4, counterweight; 5, winch; 6, boom; 7, adjusting rod; 8, tie rod; 9, lifting cable; 10, square groove; 11, lifting ring; 12, connecting cable; 13, sleeve; 14, extrusion piece; 15, extrusion plate; 16, anti-slip rubber layer; 17, main body; 18, hinge seat; 19, main shaft; 20, hinge plate; 21, ratchet mechanism; 22, rotating shaft; 23, locking bolt; 24, safety rope; 25, locking screw; 26, idler roller. Detailed implementation manners

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0028] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0029] The present invention will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0030] As Figures 1-3As shown, a method for replacing sound-absorbing unit panels for the treatment of hidden dangers of high-speed railway sound barriers includes the following steps: step S1, dividing the construction scope into multiple construction sections in combination with the engineering design drawings, and arranging the production and processing of the unit panels according to the actual on-site survey and measurement results; step S2, after the personnel on the bridge arrive on the road, they set up safety protection and auxiliary measures in the operation area as required, specifically including setting up safety protection devices and conveying devices, lighting facilities and other equipment on the bridge, and the personnel under the bridge set up a protection area under the bridge according to the division of labor, set up a cordon, and provide safety protection. The material auxiliary team transports the metal sound-absorbing panels to the position to be hoisted by forklifts, flatbed trucks, etc., and the construction materials are stacked in the protection area by classification; step S3, using the lifting device to lift the unit panels under the bridge onto the bridge at the designated position, and the unit panels are uniformly transported to the operation point by the transport team according to the model and specification; the unit panels are transported to the installation position by a self-made pulley, and transported between two tracks. The pulley is equipped with a brake device to prevent the flatbed truck from sliding, and a special person is arranged to take care of it. Step S4, clamp the lifting fixture on the old board, make sure the fixture clamps the unit board, slowly lift it, use the crowbar to assist the old board to lift out of the H-shaped steel column, use the wind rope on the fixture to control the swing direction of the old board, lift the unit board out of the H-shaped steel column and lower it under the bridge, so that the unit board falls on the ground under the bridge, and the construction personnel under the bridge will collect and place the old boards and transport them to the designated site; repeat the above steps to remove the next old board until the old boards in the same construction section are completely removed. Step S5, clean up the debris inside the H-shaped steel column, and re-measure the verticality and surface flatness of the H-shaped steel column;

[0031] Step S6, lift the unit panel using a lifting device, adjust the position of the unit panel so that it is aligned with the H-shaped steel column and lowered, align it with the installation slot of the H-shaped steel column and insert it, then press down to make the unit panel fall. At the same time, two people below hold the bottom of the unit panel to prevent it from falling too fast and causing collision and impact. Step S7, repeat steps S3-S6 to complete the replacement of unit panels in multiple construction sections.

[0032] In this embodiment, the fixture has a certain length, and a guy rope is provided at each end of the fixture, so that the angle of the unit board can be controlled through the fixture. The length of the fixture is 30 - 80 cm, the main body of the fixture is a square steel groove, and an inverted L-shaped extrusion piece 14 is arranged inside the square groove 10. The corner of the extrusion piece 14 is hinged to the inner wall of the square groove 10 through a hinge plate 20. The upper end of the extrusion piece 14 is connected to a connecting cable 12, and the connecting cable 12 passes upward through the square groove and is connected to a hoisting device. The lower end of the extrusion piece 14 is hinged to the middle of the extrusion plate 15, and the extrusion plate 15 clamps the sound barrier unit board under the action of the self-weight of the equipment and the unit board. A perforation corresponding to the connecting cable 12 is provided in the middle of the square groove, and the aperture is larger than the displacement distance of the extrusion piece 14 rotating in the horizontal direction. The two ends of the connecting cable 12 are respectively connected to two extrusion pieces 14, and a freely sliding lifting ring 11 is arranged in the middle of the connecting cable 12. The lifting ring 11 is used to connect the hoisting device, and the two extrusion pieces 14 are driven simultaneously through the lifting ring 11, thereby ensuring the stable force of the unit board. Anti-slip rubber layers 16 corresponding to the unit board or the old board are arranged on the inner wall of the extrusion plate 15 and the square groove 10.

[0033] In an alternative embodiment, in step S7, after the unit boards of the same construction segment are replaced, quality acceptance is carried out. One span is installed and one span is accepted. The main contents of the acceptance are: the insertion depth of the screen body (the lap joint is not less than 4 cm under the ultimate state), the size of the screen body, the quality of bolt tightening, the arrangement of rubber strips, the joints of the screen body and the appearance quality. Image data are retained during the installation process of each span, including the number of removed and installed units, which is convenient for statistical summary.

[0034] In an alternative embodiment, in step S1, after the screen body is transported to the temporary storage area, the temporary storage area should be designated on-site. When unloading the vehicle, it should be from high to low and from the edge to the middle. Before construction, the bridge trench cover plates, catenary wires, and trackside equipment should be softly isolated by quilts, and then rigidly isolated by covering with wooden boxes. The quilts and wooden boxes are recycled according to the construction progress. To avoid collision during construction, isolation measures such as wooden boards or colored strip cloth are mainly taken for the contact surfaces with the ballast bed and cable trench cover plates. The wheels for transporting the track flat cars are strictly prohibited from using materials such as iron wheels to avoid damage to the track.

[0035] In an alternative embodiment, in step S1, the construction progress is arranged according to the high-speed rail timetable, and sufficient time is reserved for evacuating the line. Make full use of the empty window construction time period of the high-speed rail operating line, master the construction progress, maintain the transportation order during construction, and coordinate and solve the problems that occur temporarily in each construction department;

[0036] In an alternative embodiment, the construction workers hang a safety rope 24, and the safety rope 24 is connected to the high-speed rail retaining wall through a fixing device. A plurality of fixing devices are spaced apart on the high-speed rail retaining wall. During the high-speed rail operation period, the personnel evacuate, and the fixing devices remain on the retaining wall. During the construction period, the workers enter the site and connect the safety rope 24 to the corresponding fixing device.

[0037] Before construction, the edge work is to fix the clamp on the retaining wall or crash wall, one for every ten meters on each working surface. The fixing device includes a main body 17, an articulated seat 18, and a ratchet mechanism 21, wherein the main body 17 is a door-type structure straddling the top of the low wall, and at least one locking screw 25 corresponding to the low wall is provided on the main body 17, and the locking of the main body 17 is achieved by squeezing the side wall of the low wall by the locking screw 25, and an anti-slip plate is provided at one end of the locking bolt corresponding to the low wall; the articulated seat 18 is arranged in the middle part above the main body 17, and two relatively distributed articulated plates 20 are provided on the articulated seat 18, which are used to rotate and connect the two ends of the rotating shaft 22, and the rotating shaft 22 is a hollow steel pipe, and one end of the rotating shaft 22 passes through the corresponding articulated plate 20 and is correspondingly connected to a rotating handle, and a ratchet mechanism 21 is correspondingly installed between the rotating shaft 22 and the articulated plate 20 to limit the rotating shaft 22 to rotate in the opposite direction of the winding of the safety rope 24, and the ratchet mechanism 21 adopts a conventional device, and the ratchet mechanism 21 is not described in detail here.

[0038] Due to the limitation of the retaining wall or the anti-collision wall, the pulling direction of the safety rope 24 is constant, and it is inconvenient for the construction workers to move back and forth. Therefore, the present application is provided with an upwardly extending main shaft 19 in the middle of the main body 17, and the main shaft 19 is rotatably connected to the hinge seat 18, so that the angle of the safety rope 24 can be adjusted without being limited by the installation position. The upper end of the main shaft 19 passes through the hinge seat 18 and is connected to a nut.

[0039] A locking bolt 23 is provided on the rotating shaft 22 and penetrates the rotating shaft 22 in a radial direction. A connecting ring is provided at one end of the locking bolt 23 for connecting a safety rope 24 .

[0040] In an optional embodiment, the lifting device includes a base 2 and a lifting arm 6. The base 2 is fixed on the high-speed railway retaining wall, and is provided with a column 1 extending upward. A hinged column is provided on the top of the column 1, and the diameter of the hinged column is smaller than that of the column 1. A sleeve 13 corresponding to the hinged column is provided at the lower end of the lifting arm 6, so that the base 2 is rotatably connected through the sleeve 13. After the hinged column extends upward from the sleeve 13, a nut is connected, so that the horizontal angle of the lifting arm 6 can be adjusted according to actual needs. The upper end of the base 2 is tilted and extended away from the turntable, so that it can extend to the edge of the railway to lift the old and new unit panels of the sound barrier.

[0041] A cross bar extends from the side of the casing 13 away from the jib 6. A winch 5 is provided on the cross bar, and a diagonal brace corresponding to connecting the jib 6 is provided in the middle of the cross bar to improve the strength of the jib 6. An adjusting rod 7 is provided at the front end of the jib 6. One end of the adjusting rod 7 is hinged to the jib 6, and the other end is connected to the middle of the cross bar through a pull rod 8. The pull rod 8 can be a cylinder. The lifting cable 9 of the winch 5 passes around the roller at the front end of the adjusting rod 7 and then is connected to the lifting ring 11 of the fixture. The longitudinal projection distance between the front end of the adjusting rod 7 and the base 2 is adjusted by the telescopic movement of the pull rod 8. Specifically, the distance between the end of the adjusting rod 7 and the casing 13 (base 2) is shortened, so that the sound barrier undergoes a lateral displacement. A roller corresponding to the lifting cable 9 is provided at the upper end of the extension rod.

[0042] An inverted U-shaped fastener 6 corresponding to the retaining wall is provided below the base 2. A locking bolt corresponding to the retaining wall is provided on one side of the fastener 6, so that it can be pressed against the side wall of the retaining wall under the rotation of the thread. A connecting seat is provided below the cross bar, and a counterweight 4 is connected to the connecting seat in a detachable manner.

[0043] Furthermore, at least two rotatably connected idler rollers 26 are provided in the fastener 6. The two idler rollers 26 are respectively located at both ends of the fastener 6, and the idler rollers 26 support on the upper surface of the retaining wall, so that the displacement of the hoisting device can be carried out according to actual needs.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A method for replacing sound-absorbing unit panels for high-speed railway sound barrier hidden danger treatment, characterized in that: The following steps are involved: Step S1, dividing the construction scope into multiple construction sections in combination with the engineering design drawings, and arranging the production and processing of the unit panels according to the actual on-site survey and measurement results; Step S2, installing safety protection devices and conveying devices on the bridge, setting up a protection area under the bridge, and stacking the construction materials in the protection area by classification; Step S3, using a lifting device to lift the unit panels under the bridge onto the bridge at a designated location, and transporting the unit panels to the operation point according to the types and specifications; Step S4, clamp the old plate with the lifting fixture, use the crowbar to help the old plate to be lifted out of the H-shaped steel column, use the wind rope on the fixture to control the steering of the old plate, and lower the old plate under the bridge until the old plate inside the same construction section is completely removed; Step S5, cleaning the internal debris of the H-shaped steel column, and re-measuring the verticality and surface flatness of the H-shaped steel column; Step S6, lifting the unit plate by using a lifting device, adjusting the position of the unit plate so that the unit plate is aligned with the H-shaped steel column and lowering it; Step S7, repeating steps S3 to S6 to complete the replacement of unit panels in multiple construction sections.

2. The method for replacing the sound absorbing unit plate for the hidden danger treatment of the high-speed railway sound barrier according to claim 1 is characterized in that: In step S7, quality inspection is carried out after the replacement of the unit panels in the same construction section is completed.

3. The method for replacing the sound absorbing unit plate for the hidden danger treatment of the high-speed railway sound barrier according to claim 1 is characterized in that: In step S1, before construction, the trench cover, contact network line and trackside equipment on the bridge are softly isolated by using quilts, and then hard isolated by using wooden boxes; the quilts and wooden boxes are recycled according to the construction progress.

4. The method for replacing the sound absorbing unit plate for the hidden danger treatment of the high-speed railway sound barrier according to claim 1 is characterized in that: In step S1, the construction schedule is arranged according to the high-speed rail timetable, and sufficient time is reserved for evacuating the line.

5. The method for replacing the sound-absorbing unit plate for the hidden danger treatment of the high-speed railway sound barrier according to claim 1 is characterized in that: Construction workers hang up a safety rope, which is connected to the high-speed railway retaining wall through a fixing device. Multiple fixing devices are distributed at intervals on the high-speed railway retaining wall. When the high-speed railway is in operation, personnel are evacuated and the fixing device remains on the retaining wall. During the construction period, workers enter the site and connect the safety rope to the corresponding fixing device.

6. The method for replacing the sound absorbing unit plate for the hidden danger treatment of the high-speed railway sound barrier according to claim 5 is characterized in that: A fixture is set up every 10 meters.

7. The method for replacing the sound absorbing unit plate for the hidden danger treatment of the high-speed railway sound barrier according to claim 1 is characterized in that: The lifting device includes a base and a boom, the base is fixed on the high-speed railway retaining wall, the lower end of the boom is rotatably connected to the base, an adjusting rod is arranged at the front end of the boom, one end of the adjusting rod is hinged to the boom, and the other end is connected to the boom through a pull rod, so that the longitudinal projection distance between the front end of the adjusting rod and the base can be adjusted by telescoping the pull rod.

8. The method for replacing the sound absorbing unit plate for the hidden danger treatment of the high-speed railway sound barrier according to claim 1 is characterized in that: The clamp has a certain length, and a wind rope is respectively arranged at both ends of the clamp.

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