Preparation and installation method of sound barrier

Abstract

The invention relates to the technical field of sound barriers, and discloses a preparation and installation method of a sound barrier, which comprises the following steps: manufacturing a sound insulation panel mold and an installation base mold for manufacturing a sound insulation panel with a cavity and a rectangular plate structure and an installation base with a plurality of through holes; the mounting base mold is fixedly connected to one side of the bottom of the soundproof panel mold to form a soundproof wall mold; pouring the soundproof wall material into a soundproof wall mold, and hardening and demolding to prepare a soundproof wall; preparing a sound-absorbing material adopting light foam concrete, filling the cavity with the sound-absorbing material, and hardening the sound-absorbing material to prepare a unit structure; a plurality of unit structures are installed in the extending direction of a road, an installation base is horizontally placed back on to a sound source, the installation base is pressed on the ground through a fastener, and the unit structures are fixedly connected in an adhesive mode through a sealing material. The sound barrier is environment-friendly and safe in preparation process, rapid to install and high in precision, and has high durability while having good sound absorption and insulation effects.

Description

Technical Field

[0001] The present invention relates to the technical field of sound barriers, and in particular to a method for preparing and installing a sound barrier. Background Art

[0002] Lightweight high-strength concrete (lightweight high-strength concrete refers to lightweight concrete for structures with a dry apparent density of no more than 1950kg / m3 and a strength grade of LC30 or above, which is made of high-strength light coarse aggregate, ordinary sand, cement and water) has good sound absorption and insulation performance, mechanical properties, weather resistance and durability. It is light in weight and easy to construct, has a small burden on the foundation, and its structural type can be varied. Its appearance is easy to coordinate with the surrounding environment. It is a highly efficient sound absorption and noise reduction product. The combination of lightweight high-strength concrete and sound-absorbing materials can achieve better sound absorption and sound insulation effects. At present, it has been used to a certain extent in highways, railways and viaducts.

[0003] The conventional practice is to use H-shaped steel columns as the intermediate connecting skeleton, fix the H-shaped steel columns with ground embedded bolts, insert the 500mm wide lightweight high-strength cement sound-absorbing panels between the H-shaped steel flanges, and use rubber strips to seal and angle steel and bolts to connect with the steel columns. However, the ground bolts fixed to the H-shaped steel columns are often difficult to embed accurately, which affects the fixation of the H-shaped steel columns and the installation accuracy of the sound-absorbing panels. In addition, the steel columns are prone to rust, affecting the appearance and safety. In addition, the current sound-absorbing materials use glass sound-absorbing cotton, which is prone to dust pollution and often causes quality problems due to insufficient filling. Summary of the invention

[0004] In view of this, the present invention provides a method for preparing and installing a sound barrier, the preparation process of which is environmentally friendly and safe, the installation is fast and precise, and the sound barrier has good sound absorption and sound insulation effects and high durability.

[0005] The present invention is implemented by the following technical solution: A method for preparing and installing a sound barrier, characterized in that it comprises the following steps:

[0006] Step 1: Make a sound insulation panel mold and a mounting base mold. The sound insulation panel mold is used to make a sound insulation panel with a cavity and a rectangular plate structure, and the mounting base mold is used to make a mounting base with a plurality of through holes. The mounting base mold and the sound insulation panel mold are perpendicular to each other, and the mounting base mold is fixed to one side of the bottom of the sound insulation panel mold to form a sound insulation wall mold.

[0007] Step 2: pour the sound insulation wall material into the sound insulation wall mold. After the sound insulation wall material solidifies and hardens, it can be demoulded to form a sound insulation wall formed by the sound insulation panel and the installation base in one piece;

[0008] Step 3: preparing a sound absorbing material, wherein the sound absorbing material is a lightweight foam concrete;

[0009] Step 4: Fill the cavity with sound absorbing material, and solidify and harden the sound absorbing material to form a unit structure;

[0010] Step 5: Hoist the unit structure to the installation location, place the installation base horizontally with its back to the sound source, and insert the pre-buried bolts in the ground into the through holes; pour self-compacting concrete to fill the gap between the through holes and the pre-buried bolts. After the self-compacting concrete solidifies and hardens, use fasteners to press the installation base onto the ground, and the installation of a single unit structure is completed;

[0011] Step 6: Install several unit structures along the extension direction of the road, use sealing materials to fill the gaps between the unit structures tightly, and use the sealing materials to bond and fix two adjacent unit structures. The sound barrier installation is completed.

[0012] Furthermore, the sound absorbing material is prepared by fully stirring and uniformly mixing 250-300 kg of cement, 50-100 kg of fly ash, 5-10 kg of rapid hardening sulphoaluminate cement, 400-500 L of foam and 300-500 kg of modified coal gangue ceramsite.

[0013] Furthermore, the modified gangue ceramsite uses gangue open-pored ceramsite with a particle size of 5 to 10 mm; isobutyltriethoxysilane is evenly sprayed on the gangue open-pored ceramsite, and dried at 50° C. for 2 hours to prepare the modified gangue ceramsite for use.

[0014] Furthermore, step one also includes making a reinforcing rib mold, fixing the bottom surface of the reinforcing rib mold to the mounting base mold, fixing a side surface of the reinforcing rib mold perpendicular to its bottom surface to the sound insulation panel mold, and the reinforcing rib mold, the mounting base mold and the sound insulation panel mold form a sound insulation wall mold; and step two is demolding to obtain a sound insulation wall formed integrally of the reinforcing rib, the sound insulation panel and the mounting base.

[0015] Furthermore, in step one, the sound insulation panel mold can also be made into a sound insulation panel with recessed and convex portions, wherein the recessed and convex portions are arranged at both ends of the sound insulation panel and are used for overlapping two adjacent unit structures; in step six, a sealing material is used to fill the gap between the overlapping portions of the unit structures tightly, and the sealing material bonds and secures the overlapping portions.

[0016] Furthermore, in step four, after the sound insulation wall is demoulded, a sound-absorbing material is poured in the cavity, and a unit structure is formed after the sound-absorbing material solidifies and hardens; or before the sound insulation wall is demoulded, a sound-absorbing material is poured in the cavity, and after the sound-absorbing material solidifies and hardens, it is demoulded together with the sound insulation wall to form a unit structure.

[0017] Furthermore, in step one, steel bars or steel wire mesh are arranged in the mold.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention adopts lightweight foam concrete to prepare the sound-absorbing material, which ensures the sound absorption and insulation effect and the stability of the sound barrier while being more environmentally friendly and safe; each unit structure is independently installed, which is fast and convenient, and is provided with a plurality of through holes to ensure the installation accuracy; the self-compacting concrete is filled in the through holes to wrap the bolts, which improves the problem of bolt loosening compared with conventional methods and is more durable.

[0020] 2. The sound-absorbing material of the present invention is based on coal gangue aggregate, which further ensures that the sound barrier has good sound absorption and insulation performance. The sound-absorbing material obtained by reasonable proportioning of the components is light in weight, easy to construct, and has good weather resistance.

[0021] 3. The sound-absorbing material of the present invention can be cast before or after the sound insulation wall is demoulded, and the production steps are flexible and easy to operate.

[0022] 4. The reinforcing ribs of the present invention improve the rigidity and integrity of the sound barrier unit. In step one, the reinforcing ribs are integrally formed with the sound insulation panel to bear wind loads and train wind pressure, and the force system is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the unit structure of the present invention.

[0024] Figure 2 This is a top view of the sound insulation panel of the present invention.

[0025] Figure 3 This is a cross-sectional view of the installation base of the present invention.

[0026] Among them, 1-unit structure, 2-gasket, 3-sound insulation panel, 4-mounting base, 5-reinforcement rib, 6-through hole, 7-embedded bolt, 8-recess, 9-convex part, 10-embedded part, 11-nut, 12-self-compacting concrete. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The present invention provides a method for preparing and installing a sound barrier, which is as follows:

[0029] Step 1: Make a sound insulation panel mold and a mounting base mold. The sound insulation panel mold is used to make a sound insulation panel 3 with a cavity and a rectangular plate structure. The sound insulation panel is as follows: Figure 2As shown; the mounting base mold is used to make a mounting base 4 with a plurality of through holes 6; the mounting base mold and the sound insulation panel mold are placed perpendicular to each other, and the mounting base mold is fixed to one side of the bottom of the sound insulation panel mold to form a sound insulation wall mold. The sound insulation wall mold is used to prepare a sound insulation wall with a sound insulation panel 3 and a mounting base 4 integrally formed.

[0030] Step 2: Spray the isolation agent in the sound insulation wall mold, stir the sound insulation wall material and pour it into the mold. After the sound insulation wall material solidifies and hardens, it can be demoulded to make a sound insulation wall. Figure 1 In specific implementation, according to the construction conditions, the sound insulation wall can be prefabricated or cast on site.

[0031] Step 3: Prepare the sound-absorbing material, which is a lightweight foam concrete. Preferably, the sound-absorbing material is made by fully stirring and evenly mixing one part of cement 250-300kg, one part of fly ash 50-100kg, one part of fast-hardening sulphoaluminate cement 5-10kg, one part of foam 400-500L, and one part of modified gangue ceramsite 300-500kg. In this embodiment, the modified gangue ceramsite uses gangue open-cell ceramsite with a particle size of 5-10mm; the gangue open-cell ceramsite is evenly sprayed with isobutyl triethoxysilane, dried at 50°C for 2 hours, and modified gangue ceramsite is prepared for standby use. The sound-absorbing material realizes the utilization of solid waste aggregates. Compared with the existing built-in sound-absorbing cotton that is polluted, it is more environmentally friendly, safer, and easier to control quality.

[0032] Step 4: Use a grouting machine to pour the sound-absorbing material into the cavity of the sound insulation panel 3, wait for the sound-absorbing material to solidify and harden, and the unit structure 1 consisting of the sound insulation wall and the sound-absorbing material is completed. In specific implementation, according to the construction conditions, after the sound insulation wall is demolded, the sound-absorbing material can be poured into the cavity, and the unit structure 1 can be formed after the sound-absorbing material solidifies and hardens; or before the sound insulation wall is demolded, the sound-absorbing material can be poured into the cavity in the sound insulation wall mold, and after the sound-absorbing material solidifies and hardens, it can be demolded together with the sound insulation wall to form the unit structure 1.

[0033] Step 5: If Figure 3 As shown, the unit structure 1 is hoisted to the installation position, and the installation base 4 is placed horizontally with its back to the sound source. At this time, the sound insulation panel 3 is perpendicular to the ground, and the ground embedded bolts 7 are inserted into the through holes 6; a number of through holes 6 can ensure that: in the case of deviation in the position of the ground embedded bolts 7, there can be through holes 6 in suitable positions for installation. The gap between the through holes 6 and the embedded bolts 7 is filled with self-compacting concrete 12. After the self-compacting concrete 12 solidifies and hardens, the installation base 4 is pressed onto the ground using nuts 11 that match the embedded bolts 7. A gasket 2 can also be set between the nuts 11 and the installation base 4; the installation of the single unit structure 1 is completed.

[0034] Step 6: Install several unit structures 1 one by one along the extension direction of the road, fill the gap between two adjacent unit structures 1 with sealing material, adhere and fix the two adjacent unit structures 1 with the sealing material, and the installation of the sound barrier is completed. The sealing material can be glass silicon.

[0035] As an improvement, step one also includes making a reinforcing rib mold, fixing the bottom surface of the reinforcing rib mold to the mounting base mold, fixing a side surface of the reinforcing rib mold perpendicular to its bottom surface to the sound insulation panel mold, and the reinforcing rib mold, the mounting base mold and the sound insulation panel mold form a sound insulation wall mold; therefore, in step two, after the sound insulation wall material is poured, it is hardened and demolded to obtain a sound insulation wall formed integrally of the reinforcing rib 5, the sound insulation panel 3 and the mounting base 4.

[0036] As a further improvement, the sound insulation wall material is poured after the steel bars or steel wire mesh are arranged in the sound insulation wall mold; and an embedded part 10 for hoisting can also be arranged on the top of the sound insulation panel 3 in the step of pouring the sound insulation wall material.

[0037] As a further improvement, Figure 2 As shown, in step one, the sound insulation panel mold can also be made into a sound insulation panel 3 with a recessed portion 8 and a convex portion 9, the recessed portion 8 and the convex portion 9 are arranged at both ends of the sound insulation panel 3, the recessed portion 8 and the convex portion 9 are used for overlapping two adjacent unit structures 1, and after the sound insulation wall material is poured, the recessed portion 8 and the convex portion 9 are integrally formed with the sound insulation panel 3.

[0038] The preparation process of the present invention is environmentally friendly and pollution-free, and the installation is fast and precise. The sound barrier obtained by the preparation and installation method provided by the present invention has a simple structure, light weight, stability and durability. It has good sound absorption and insulation and is more environmentally friendly and safe.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing and installing a sound barrier, characterized in that: include: Step 1: Make a sound insulation panel mold and a mounting base mold. The sound insulation panel mold is used to make a sound insulation panel with a cavity and a rectangular plate structure, and the mounting base mold is used to make a mounting base with a plurality of through holes. The mounting base mold and the sound insulation panel mold are perpendicular to each other, and the mounting base mold is fixed to one side of the bottom of the sound insulation panel mold to form a sound insulation wall mold. Step 2: pour the sound insulation wall material into the sound insulation wall mold. After the sound insulation wall material solidifies and hardens, it can be demoulded to form a sound insulation wall formed by the sound insulation panel and the installation base in one piece; Step 3: preparing a sound absorbing material, wherein the sound absorbing material is a lightweight foam concrete; Step 4: Fill the cavity with sound absorbing material, and solidify and harden the sound absorbing material to form a unit structure; Step 5: Hoist the unit structure to the installation location, place the installation base horizontally with its back to the sound source, and insert the pre-buried bolts in the ground into the through holes; pour self-compacting concrete to fill the gap between the through holes and the pre-buried bolts. After the self-compacting concrete solidifies and hardens, use fasteners to press the installation base onto the ground, and the installation of a single unit structure is completed; Step 6: Install several unit structures along the extension direction of the road, use sealing materials to fill the gaps between the unit structures tightly, and use the sealing materials to bond and fix two adjacent unit structures. The sound barrier installation is completed.

2. The method for preparing the sound barrier according to claim 1, characterized in that: The sound absorbing material is prepared by fully stirring and evenly mixing 250-300kg of cement, 50-100kg of fly ash, 5-10kg of fast-hardening sulphoaluminate cement, 400-500L of foam and 300-500kg of modified coal gangue ceramsite.

3. The method for preparing and installing a sound barrier according to claim 2, characterized in that: The modified gangue ceramsite adopts gangue open-pored ceramsite with a particle size of 5 to 10 mm; the gangue open-pored ceramsite is uniformly sprayed with isobutyl triethoxysilane, and dried at 50° C. for 2 hours to prepare the modified gangue ceramsite for standby use.

4. The method for preparing and installing a sound barrier according to claim 1, characterized in that: Step one also includes making a reinforcing rib mold, fixing the bottom surface of the reinforcing rib mold to the mounting base mold, fixing a side surface of the reinforcing rib mold perpendicular to its bottom surface to the sound insulation panel mold, and the reinforcing rib mold, the mounting base mold and the sound insulation panel mold form a sound insulation wall mold; the step two is demolding to obtain a sound insulation wall formed integrally of the reinforcing rib, the sound insulation panel and the mounting base.

5. The method for preparing and installing a sound barrier according to claim 1, characterized in that: In step one, the sound insulation panel mold can also be made into a sound insulation panel with concave and convex parts, which are arranged at both ends of the sound insulation panel and are used for overlapping two adjacent unit structures; in step six, a sealing material is used to fill the gap between the overlapping parts of the unit structures tightly, and the sealing material bonds the overlapping parts together.

6. The method for preparing and installing a sound barrier according to any one of claims 1 to 5, characterized in that: In step 4, after the sound insulation wall is demoulded, a sound absorbing material is poured in the cavity, and a unit structure is formed after the sound absorbing material solidifies and hardens; or before the sound insulation wall is demoulded, a sound absorbing material is poured in the cavity, and after the sound absorbing material solidifies and hardens, it is demoulded together with the sound insulation wall to form a unit structure.

7. The method for preparing and installing a sound barrier according to claim 6, characterized in that: In step one, steel bars or steel wire mesh are placed in the mold.

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