阅读说明：本技术 一种装配式人工浮桥系统的施工方法 (Construction method of assembly type artificial floating bridge system ) 是由 李新宇 周锵 曾锦亮 于 2019-11-20 设计创作，主要内容包括：本发明公开了一种装配式人工浮桥系统的施工方法,其特征在于,包括如下步骤：S1、制作定位桩并将其安装到水底；S2、制作浮箱并将安装到所述定位桩上；S3、在所述浮箱上安装横梁和纵梁；S4、在所述浮桥两侧的纵梁上安装护栏；S5、在所述纵梁上铺设人行道板；S6、安装照明系统。本发明的浮桥系统施工方法中浮桥采用采用装配式结构,可实现各零部件均可采用工厂预制、现场直接安装的方式,不仅可节约成本,同时也保护了作业现场的环境,便于推广应用。同时,施工方法高效、规范和环保,同时也能够保证浮桥的定位精度和安装强度,确保了浮桥的使用寿命。(The invention discloses a construction method of an assembly type artificial floating bridge system, which is characterized by comprising the following steps: s1, manufacturing a positioning pile and installing the positioning pile on the water bottom; s2, manufacturing a buoyancy tank and installing the buoyancy tank on the positioning pile; s3, mounting cross beams and longitudinal beams on the buoyancy tanks; s4, installing guardrails on the longitudinal beams on the two sides of the floating bridge; s5, paving a sidewalk board on the longitudinal beam; and S6, installing the lighting system. The floating bridge in the construction method of the floating bridge system adopts an assembled structure, and can realize that all parts can adopt a mode of factory prefabrication and field direct installation, thereby not only saving the cost, but also protecting the environment of an operation field and being convenient for popularization and application. Meanwhile, the construction method is efficient, standard and environment-friendly, and meanwhile, the positioning precision and the installation strength of the floating bridge can be ensured, and the service life of the floating bridge is ensured.)

1. A construction method of an assembly type artificial floating bridge system is characterized by comprising the following steps:

s1, manufacturing a positioning pile and installing the positioning pile on the water bottom;

s2, manufacturing a buoyancy tank and installing the buoyancy tank on the positioning pile;

s3, mounting cross beams and longitudinal beams on the buoyancy tanks;

s4, installing guardrails on the longitudinal beams on the two sides of the floating bridge;

s5, paving a sidewalk board on the longitudinal beam;

and S6, installing the lighting system.

2. The construction method of the fabricated artificial floating bridge system according to claim 1, further comprising a pilot hole construction in step S1, the pilot hole construction comprising:

s11, measuring the accurate square point of each positioning pile according to the positioning pile coordinates;

s12, welding a guide frame through a floating platform;

s13, driving the steel protecting cylinder into the strong weathering layer for 0.5-1.5 m according to the positioning of the guide frame, wherein the height of the steel protecting cylinder is 150-350mm higher than the annual water level;

s14, leading the coordinate points to the wall of the steel protecting cylinder for marking, draining accumulated water in the steel protecting cylinder, and emptying silt and clay in the steel protecting cylinder to a strongly weathered surface;

s15, placing and fixing a guide hole on the steel casing by using a steel template with a hole according to the coordinate point on the steel casing so as to ensure the accuracy of the vertical and horizontal directions and the verticality of the guide hole;

and S16, drilling a guide hole.

3. The construction method of the fabricated artificial floating bridge system according to claim 1, wherein in step S1, when the pile tip of the spud is inserted into the pile position, the vibration hammer is slightly started, when the spud is driven to 50cm into the ground, the verticality of the spud and the levelness of the platform are corrected again to ensure that the vertical-horizontal bidirectional vertical deviation of the spud does not exceed 0.5%, then the vibration hammer is started to slowly press the spud down, and the pressing speed is controlled, generally not to exceed 2 m/min.

4. The construction method of the fabricated artificial floating bridge system according to claim 1, wherein the floating box comprises a cover plate and a hollow box body, the bottom of the box body is provided with an arc-shaped bottom plate, the upper part of the box body is sealed by the cover plate, and the cover plate is provided with a water injection hole.

5. The construction method of the fabricated artificial floating bridge system according to claim 1, wherein the longitudinal tensile strength of the floating box is more than or equal to 100Mpa, and the longitudinal tensile modulus is more than or equal to 10 GPa; the transverse tensile strength is more than or equal to 100Mpa, and the transverse tensile modulus is more than or equal to 10 GPa; the transverse compression strength is more than or equal to 100Mpa, and the transverse tensile modulus is more than or equal to 10 GPa; the longitudinal bending strength is more than or equal to 100Mpa, and the longitudinal bending modulus is more than or equal to 10 GPa; the transverse bending strength is more than or equal to 100Mpa, and the transverse bending modulus is more than or equal to 10 GPa; the longitudinal and transverse shear strength is more than or equal to 70Mpa, and the longitudinal and transverse shear modulus is more than or equal to 5 GPa; the longitudinal tensile breaking elongation is more than or equal to 10 percent, and the transverse tensile breaking growth rate is more than or equal to 12 percent; the longitudinal and transverse stretching Poisson's ratio is more than or equal to 0.2, and the longitudinal and transverse compression Poisson's ratio is more than or equal to 0.2.

6. The construction method of the fabricated artificial pontoon system as claimed in claim 1, wherein the buoyancy tank has an anti-uv irradiation and an aging life under a long-term bubble environment of not less than 30 years; and the mechanical property attenuation proportion is not more than 15% within 30 years.

7. The construction method of the fabricated artificial floating bridge system according to claim 1, wherein the two ends of the beam are provided with sleeve holes, the sleeve holes are sleeved with the positioning piles, and the beam is detachably connected to the floating box through bolts.

8. The construction method of an assembled artificial floating bridge system according to claim 1, wherein the longitudinal beams are detachably mounted on the cross beams by bolts, and adjacent longitudinal beams are connected by means of hinges.

9. The method of constructing an assembled artificial floating bridge system according to claim 1, wherein the walkway plate comprises an FRP laminate laid on an underlying layer and a colored epoxy gravel layer laid on the FRP laminate.

10. The construction method of the fabricated artificial floating bridge system according to claim 1, wherein before the step S5, the longitudinal beams are leveled by cement mortar and metal putty is fully paved, and the lighting system comprises a lighting lamp installed on the guardrail and a landscape lamp installed on the positioning pile.

Technical Field

The invention belongs to the technical field of construction, and particularly relates to a construction method of an assembled artificial floating bridge system.

Background

At present, on the communication mode of a central island and a shore of an inner lake, a mode of establishing an artificial floating bridge is usually adopted, on one hand, the entertainment of the inner lake can be improved, the environment of the inner lake can be protected, and on the other hand, the docking of a yacht and the like can be facilitated.

However, most of the existing pontoon systems are constructed by site construction and still adopt a traditional site prefabrication construction mode, which causes great damage to the site environment. Some construction units adopt the mode of factory prefabrication and field assembly, but still can not realize complete factory prefabrication, cause certain environmental protection and cost problem. Meanwhile, the construction process is not standard, repeated debugging is needed, and the construction time is long.

Therefore, an efficient and environment-friendly construction method for an assembly type artificial floating bridge system becomes a problem to be solved urgently.

Disclosure of Invention

The invention aims to provide a construction method of an assembly type artificial floating bridge system, thereby solving the problems.

In order to achieve the purpose, the invention discloses a construction method of an assembly type artificial floating bridge system, which comprises the following steps:

s1, manufacturing a positioning pile and installing the positioning pile on the water bottom;

s2, manufacturing a buoyancy tank and installing the buoyancy tank on the positioning pile;

s3, mounting cross beams and longitudinal beams on the buoyancy tanks;

s4, installing guardrails on the longitudinal beams on the two sides of the floating bridge;

s5, paving a sidewalk board on the longitudinal beam;

and S6, installing the lighting system.

Further, in step S1, a guide hole construction is further included, where the guide hole construction includes:

s11, measuring the accurate square point of each positioning pile according to the positioning pile coordinates;

s12, welding a guide frame through a floating platform;

s13, driving the steel protecting cylinder into the strong weathering layer for 0.5-1.5 m according to the positioning of the guide frame, wherein the height of the steel protecting cylinder is 150-350mm higher than the annual water level;

s14, leading the coordinate points to the wall of the steel protecting cylinder for marking, draining accumulated water in the steel protecting cylinder, and emptying silt and clay in the steel protecting cylinder to a strongly weathered surface;

s15, placing and fixing a guide hole on the steel casing by using a steel template with a hole according to the coordinate point on the steel casing so as to ensure the accuracy of the vertical and horizontal directions and the verticality of the guide hole;

and S16, drilling a guide hole.

Further, in step S1, when the pile tip of the positioning pile is inserted into the pile position, the vibration hammer is slightly started, when the positioning pile is buried to 50cm, the verticality of the positioning pile and the levelness of the platform are corrected again to ensure that the vertical and horizontal deviations of the positioning pile are not more than 0.5%, then the vibration hammer is started to slowly press down the positioning pile, and the pressing speed is controlled, generally not more than 2 m/min.

Furthermore, the buoyancy tank comprises a cover plate and a hollow box body, an arc-shaped bottom plate is arranged at the bottom of the box body, the upper part of the box body is sealed through the cover plate, and a water injection hole is formed in the cover plate.

Furthermore, the longitudinal tensile strength of the buoyancy tank is more than or equal to 100Mpa, and the longitudinal tensile modulus is more than or equal to 10 GPa; the transverse tensile strength is more than or equal to 100Mpa, and the transverse tensile modulus is more than or equal to 10 GPa; the transverse compression strength is more than or equal to 100Mpa, and the transverse tensile modulus is more than or equal to 10 GPa; the longitudinal bending strength is more than or equal to 100Mpa, and the longitudinal bending modulus is more than or equal to 10 GPa; the transverse bending strength is more than or equal to 100Mpa, and the transverse bending modulus is more than or equal to 10 GPa; the longitudinal and transverse shear strength is more than or equal to 70Mpa, and the longitudinal and transverse shear modulus is more than or equal to 5 GPa; the longitudinal tensile breaking elongation is more than or equal to 10 percent, and the transverse tensile breaking growth rate is more than or equal to 12 percent; the longitudinal and transverse stretching Poisson's ratio is more than or equal to 0.2, and the longitudinal and transverse compression Poisson's ratio is more than or equal to 0.2.

Further, the aging life of the buoyancy tank under the ultraviolet irradiation resistance and long-term bubble environment is not less than 30 years; and the mechanical property attenuation proportion is not more than 15% within 30 years.

Furthermore, the two ends of the cross beam are provided with sleeve-joint holes, the sleeve-joint holes are sleeved with the positioning piles, and the cross beam is detachably connected to the buoyancy tank through bolts.

Furthermore, the longitudinal beams are detachably mounted on the cross beam through bolts, and the longitudinal beams are connected in a hinged mode.

Further, the pavement slab comprises an FRP laminate laid on the lower layer and a colored epoxy gravel layer laid on the FRP laminate.

Further, before step S5, leveling the longitudinal beams by cement mortar and paving metal putty on the longitudinal beams

The lighting system comprises a lighting lamp arranged on the guardrail and a landscape lamp arranged on the positioning pile.

Compared with the prior art, the invention has the advantages that:

the floating bridge in the construction method of the floating bridge system adopts an assembled structure, and can realize that all parts can adopt a mode of factory prefabrication and field direct installation, thereby not only saving the cost, but also protecting the environment of an operation field and being convenient for popularization and application. Meanwhile, the construction method is efficient, standard and environment-friendly, and meanwhile, the positioning precision and the installation strength of the floating bridge can be ensured, and the service life of the floating bridge is ensured.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic flow chart of a construction method of an assembled artificial floating bridge system disclosed by the embodiment of the invention;

FIG. 2 is a schematic structural diagram of an assembled artificial floating bridge system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a guide hole plane of a positioning pile disclosed by the embodiment of the invention.

1. A buoyancy tank; 11. a cover plate; 12. a box body; 13. an arc-shaped bottom plate; 14. a water injection hole; 15. a partition plate; 16. embedding parts;

2. positioning the pile; 21. A landscape lamp;

3. a cross beam; 31. sleeving a hole;

4. a stringer;

5. a sidewalk board;

6. a steel casing; 61. a guide hole;

7. a guardrail; 71. an illuminating lamp.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1-3, the invention discloses a construction method of an assembly type artificial floating bridge system, which comprises the following steps:

s1, manufacturing the spud 2 and installing the spud to the water bottom;

s2, manufacturing the buoyancy tank 1 and installing the buoyancy tank on the positioning pile 2;

s3, mounting the cross beam 3 and the longitudinal beam 4 on the buoyancy tank 1;

s4, installing guardrails on the longitudinal beams 4 on the two sides of the floating bridge;

s5, paving the sidewalk board 5 on the longitudinal beam 4;

and S6, installing the lighting system.

In the present embodiment, in step S1, a guide hole 61 construction is further included, and the guide hole 61 construction includes:

s11, measuring the accurate square point of each positioning pile 2 according to the coordinates of the positioning piles 2;

s12, welding a guide frame through a floating platform, wherein the length of the floating platform is 24m, the width of the floating platform is 8.5m, and the floating platform is provided with a lifting appliance and auxiliary parts required by a 25-ton truck crane, a DZJ90 vibration pile driving hammer, a 300KW generator set and the like;

s13, driving the steel protecting cylinder 6 into the strong weathering layer for 0.5-1.5 m according to the positioning of the guide frame, wherein the height of the steel protecting cylinder 6 is 150-350mm higher than the perennial water level;

s14, converting by using the azimuth principle of a total station, introducing the coordinate point to the wall of the steel casing 6 for marking, draining accumulated water in the steel casing 6, and emptying silt and clay in the steel casing 6 to a strongly weathered surface;

s15, placing and fixing the guide hole 61 on the steel casing 6 by using a steel template with a hole according to the coordinate point on the steel casing 6 so as to ensure the accurate longitudinal and transverse directions and the verticality of the guide hole 61;

and S16, drilling a guide hole 61, wherein the depth of the guide hole 61 to the designed rock embedding depth is 1.5m, so that enough space is ensured for the sediment at the bottom of the pile during pile driving, and the positioning pile can be driven.

In this embodiment, in step S1, when the pile tip of the positioning pile 2 is inserted into the pile position, the vibration hammer is slightly started, when the positioning pile 2 is driven into the ground to 50cm, the verticality of the positioning pile 2 and the levelness of the platform are corrected again to ensure that the vertical and horizontal deviations of the positioning pile 2 do not exceed 0.5%, and then the vibration hammer is started to slowly press down the positioning pile 2 to control the pressing speed, which is generally not suitable to exceed 2 m/min.

In this embodiment, buoyancy tank 1 includes apron 11 and hollow box 12, and box 12 bottom is provided with arc bottom plate 13, and this box 12 upper portion is sealed through apron 11, is provided with water injection hole 14 on the apron 11, can be convenient for the ballast weight in the work progress handles, adjusts the certain draft of buoyancy tank 1.

In the embodiment, the buoyancy tank 1 is made of FRP material, has a semicircular section and a diameter of 2.4m, the bottom of the cover plate 11 is provided with a longitudinal rib and 3 transverse ribs, and the rib dimension is 90mm multiplied by 60 mm; the thickness of the arc-shaped bottom plate 13 is 12 mm; the thickness of the cover plate 11, the side plates and the partition plate 15 is 16mm, and the cover plate 11 and the lower structure are bonded and pasted by glass fiber reinforced plastics. Every flotation tank top side sets up 5 built-in fittings 16 that are used for bolted connection crossbeam 3, and built-in fittings 16 adopts the steel sheet welding to form, and built-in fittings 16 and apron 11 adopt glass steel fibre to bond to form, and the built-in fittings bonding needs to satisfy: the single axial pull-out resistance is required to be more than 10kN, and the single horizontal shearing resistance is required to be more than 5 KN. Meanwhile, the integral longitudinal tensile strength of the buoyancy tank 1 is more than or equal to 100Mpa, and the longitudinal tensile modulus is more than or equal to 10 GPa; the transverse tensile strength is more than or equal to 100Mpa, and the transverse tensile modulus is more than or equal to 10 GPa; the transverse compression strength is more than or equal to 100Mpa, and the transverse tensile modulus is more than or equal to 10 GPa; the longitudinal bending strength is more than or equal to 100Mpa, and the longitudinal bending modulus is more than or equal to 10 GPa; the transverse bending strength is more than or equal to 100Mpa, and the transverse bending modulus is more than or equal to 10 GPa; the longitudinal and transverse shear strength is more than or equal to 70Mpa, and the longitudinal and transverse shear modulus is more than or equal to 5 GPa; the longitudinal tensile breaking elongation is more than or equal to 10 percent, and the transverse tensile breaking growth rate is more than or equal to 12 percent; the longitudinal and transverse stretching Poisson's ratio is more than or equal to 0.2, and the longitudinal and transverse compression Poisson's ratio is more than or equal to 0.2.

In the present embodiment, the aging life of the buoyancy tank 1 against ultraviolet irradiation and long-term bubble environment is not less than 30 years; and the mechanical property attenuation proportion is not more than 15% within 30 years.

In this embodiment, the two ends of the cross beam 3 are provided with the sleeve holes 31, the sleeve holes 31 are sleeved with the positioning piles 2, and the cross beam 3 is detachably connected to the buoyancy tank 1 through bolts, so that the floating bridge can float up and down along the positioning piles 2, and meanwhile, the size of the cross beam 3 is 200mm × 100mm × 8 mm; 6 longitudinal beams are longitudinally arranged on the cross beam 3, the longitudinal beam 4 is 160mm multiplied by 8mm, the orthogonal area of the longitudinal beam and the transverse beam is connected by M20 bolts, and the rest are connected by welding. The cross beam 3 and the longitudinal beam 4 are made of finished rectangular pipes and are made of Q345B.

In this embodiment, longeron 4 passes through the bolt removable type and installs on crossbeam 3, and adjacent longeron 4 is connected through articulated mode, considers that the length of pontoon system is usually more than ten meters, and adjacent longeron 4 adopts the structure of sectional type, and wherein the head and the tail both ends of longeron 4 are connected integratively through articulated mode, has reduced longeron 4 cost of manufacture simultaneously, also makes the pontoon system have certain flexibility on the vertical direction, prevents that the span from bearing when too big from breaking.

In this embodiment, the sidewalk 5 includes an FRP laminate laid on the lower layer and a colored epoxy gravel layer laid on the FRP laminate, and in this embodiment, before step S5, the longitudinal beams 4 are leveled with cement mortar and filled with metal putty.

In the present embodiment, the lighting system includes the illumination lamp 71 installed on the guardrail 7, wherein the illumination lamp 71 is a built-in LED lamp, and the illumination lamp 71 has a strong impact resistance as a whole. The light-transmitting cover of the illuminating lamp 71 is required to have good light transmission, ultraviolet resistance, high temperature resistance and anti-glare measures, and the protection grade is not lower than IP 65; and the landscape lamp 21 is arranged on the positioning pile 2, and the protection grade of the landscape lamp is not lower than IP 55.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.