WO2018076497A1

WO2018076497A1 - Comprehensive bamboo composite pipe gallery capable of accommodating multiple types of pipes

Info

Publication number: WO2018076497A1
Application number: PCT/CN2016/110233
Authority: WO
Inventors: 叶柃; 殷建学; 赵柱石
Original assignee: 浙江鑫宙竹基复合材料科技有限公司; 叶柃
Priority date: 2016-10-31
Filing date: 2016-12-16
Publication date: 2018-05-03
Also published as: CN108005109A; CN108005109B

Abstract

A comprehensive bamboo composite pipe gallery capable of accommodating multiple types of pipes. The interior of a comprehensive pipe gallery is embedded with a supporting assembly; the supporting assembly comprises multiple supporting units having an identical structure and arranged along the axial direction of the comprehensive pipe gallery; the supporting unit comprises a weight bearing steel ring (1) and a frame component; the frame component comprises a horizontal supporting beam (2), a vertical supporting column (3), and a horizontal crossbeam (4); the horizontal supporting beam (2) is horizontally provided; the vertical supporting column (3) comprises two main supporting columns (3-1) and several auxiliary supporting columns (3-2); the two main supporting columns (3-1) are vertically arranged between the weight bearing steel ring (1) and the horizontal supporting beam (2); the horizontal crossbeam (4) is horizontally provided between the main supporting columns (3-1) and the weight bearing steel ring (1); the auxiliary supporting columns (3-2) are arranged between upper and lower two horizontal crossbeams (4). Therefore, multiple compartments consisting of the main supporting columns (3-1), the auxiliary supporting columns (3-2), and the horizontal crossbeams (4) are used for arranging different pipes; a clear distance between the four surfaces of the compartment and a pipe to be laid is greater than or equal to 200mm.

Description

Bamboo composite integrated pipe gallery capable of accommodating multiple types of pipes

[Technical Field]

The invention belongs to the technical field of municipal facilities, and more particularly to a bamboo composite integrated pipe gallery which can accommodate multiple types of pipes.

【Background technique】

The pipe gallery is a municipal facility built on the underground of the city for laying municipal pipelines. It integrates various municipal pipelines such as electricity, communication, radio and television, gas, water supply and drainage, and heat, effectively utilizing the space under the road and saving underground space. Resources have also eliminated the irregular excavation of various professional pipelines, which have affected the road traffic and the surrounding environment, and completely solved the problems of “road zipper” and “air spider web”.

At present, most of the pipe porches are cast-in-place or prefabricated, and most of them adopt reinforced concrete structure. The above structure consumes a lot of materials, has a large construction project, has a long construction period, and has high cost, and it is more and more difficult to adapt to the needs of modern urban construction. In order to solve the above problems, some bamboo composite pipe porches have appeared, such as a prefabricated bamboo composite pipe gallery disclosed in CN201510565472.6 and a manufacturing method thereof, and an assembled prefabricated bamboo composite pipe gallery disclosed in CN201510565462.2. Both of the above prior patents disclose support members for use in the pipe gallery for the installation and arrangement of various types of pipes.

However, the above-mentioned prior patents simply describe the basic structure of the inner support members of the pipe gallery. For the overall arrangement of the pipe corridors, the specific arrangement of the various types of pipes inside, as well as the specific arrangement and installation specifications of the support members are not given. According to the specific description, in practical applications, there are problems such as large space occupied by the pipe gallery, disordered internal pipe arrangement, insufficient support strength of the supporting members, and inconvenience in maintenance. In fact, the overall arrangement of the pipe gallery, the specific arrangement of the internal pipes, and the specific arrangement and installation methods of the support members will directly affect the specific application of the pipe gallery, the installation and arrangement of the pipes, and the maintenance inside the pipe gallery. Therefore, it is necessary to study and design a bamboo composite integrated pipe gallery that can accommodate multiple types of pipes, in order to expand the application range of the integrated pipe gallery, and to meet the support strength. At the same time, it meets the maintenance needs inside the pipe gallery.

[Summary of the Invention]

In view of the above deficiencies or improvements in the prior art, the present invention provides a bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes, wherein the structural composition, arrangement and installation of key components are improved and redesigned. The integrated pipe gallery can be applied to the laying of various types of pipes, and meets the maintenance requirements inside the pipe gallery while meeting the supporting strength. The integrated pipe gallery has the advantages of simple structure, light weight, convenient construction and low engineering cost.

In order to achieve the above object, according to an aspect of the present invention, a bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes is provided, in which a support member is embedded in the interior of the integrated pipe gallery, and the support member includes a plurality of structurally identical And the supporting unit arranged along the axial direction of the integrated pipe gallery, the spacing L _d between two adjacent supporting units is set to ≤ 2m, wherein:

Each support unit includes a load-bearing steel ring and a detachable frame assembly mounted within the load-bearing steel ring, including horizontal support beams each lying in a plane perpendicular to the axial direction of the pipe gallery, a vertical support column and a horizontal beam, wherein the horizontal support beam is horizontally disposed at a bottom of the load-bearing steel ring; the vertical support column includes two main support columns and a plurality of sub-support columns, the two main support columns Vertically arranged between the load-bearing steel ring and the horizontal support beam, the distance L between the two main support columns is set to ≥1.0m; the horizontal beam is horizontally arranged on both sides of the load-bearing steel ring and located on the main support Between the column and the load-bearing steel ring, the auxiliary support column is arranged between the upper and lower horizontal beams, thereby passing through the main support column, the auxiliary support column and the upper and lower horizontal beams or the main support column and the auxiliary support column, The horizontal beam and the horizontal support beam constitute a plurality of compartments for arranging different pipes, the clearance bd of the four faces of the compartment and the pipe to be arranged is set to ≥200 mm, and the distance between each pipe to be arranged is set to ≥300mm;

When the integrated pipe gallery is laid, the two integrated pipe corridors are arranged symmetrically on both sides of the road with the middle line of the road, and the height from the top surface of the pipe gallery to the road surface is ≥1 m.

Further preferably, the plurality of types of pipes accommodated in the integrated pipe gallery include a water pipe, a water distribution pipe, a reclaimed water pipe, a hot water pipe, a power cable, and a communication cable, and preferably includes sewage. tube.

Further preferably, the upper ends of the corresponding vertical support columns on the two supporting units are connected by a connecting rod, and the horizontal supporting beams on the two supporting units are provided with a bottom plate, and the bottom plate is provided with a drainage hole.

Further preferably, the load-bearing steel ring has a thickness of 10-20 mm and a width of 200-400 m, which is connected by a plurality of curved components to each other through a curved connecting plate to form a tensionable annular connection having two open ends. And the two open ends are connected by a fastener, and at least one of the curved connecting plates is provided with an elongated fastening hole.

Further preferably, the inner surface of the pipe body is provided with a circumferential groove matching the load-bearing steel ring, so that the load-bearing steel ring can be tightened and embedded in the circumferential groove to adhere to The inner surface of the tube.

Further preferably, two bottom pillars are disposed under the horizontal support beam, and a reinforcing beam is disposed between the bottom pillar and the horizontal support beam.

Further preferably, the integrated pipe gallery comprises a pipe body, which comprises an inner lining layer, a structural layer and an outer protective layer in order from the inside to the outside in the pipe diameter direction;

The inner liner layer is obtained by curing a raw material including an inner liner resin and a bamboo fiber nonwoven fabric;

The structural layer is obtained by curing a raw material including a structural layer resin, a bamboo raft, and a bio-based filler; the structural layer is formed by winding the bamboo raft, and the bamboo raft is added while being entangled The structural layer resin of the bio-based filler;

Further, the inner diameter of the pipe body is not less than 2000 mm, and the rigidity level is at least 5000 N/m ² .

Further preferably, for the inner liner layer, the bamboo fiber nonwoven fabric satisfies: bamboo fiber content ≥ 98%; surface density 40-50 g/m ² ; tensile breaking strength: longitudinal direction ≥ 120 N, transverse direction ≥ 30 N; Water content 8 ~ 15%; water penetration rate at 25 ° C: ≤ 12s;

For the structural layer, the structural layer resin satisfies the post-cure: impact strength a _cu ≥ 50KJ / m ² ; tensile strength ≥ 20MPa; Barcol hardness ≥ 50HBa; water absorption ≤ 0.5%;

The bio-based filler has a particle size of from 60 mesh to 80 mesh.

Further preferably, the raw material in the structural layer further comprises a mesh cloth wrapped around the outside of the bamboo raft; the mesh cloth satisfies: an areal density of 30-40 g/m ² ; Stretching strength: longitudinal ≥ 200N, latitude ≥ 150N; elongation at break ≤ 5%; acid retention rate ≥ 90%.

Further preferably, for the structural layer, the bamboo rafts satisfy: a radial tensile strength of 60 MPa to 100 MPa; a bamboo fiber content of 35% to 45%; and a water content of 8% to 12%; Preferably, the bamboo curtain is formed by a plurality of bamboo rafts connected by a braiding line, wherein each bamboo raft is arranged in parallel at equal intervals in the width direction of the bamboo raft, and the bamboo curtain comprises an axial bamboo curtain and a circumferential bamboo curtain, wherein a length direction of the axial bamboo curtain is consistent with a width direction of the bamboo sheet, and a length direction of the circular bamboo curtain is consistent with a longitudinal direction of the bamboo sheet; wherein, the ring The tensile strength to the bamboo strip is 1400 N to 1600 N, and the tensile strength of the axial bamboo strip is 180 N to 220 N.

Further preferably, the inner liner layer has a thickness of 4.5 mm to 5.5 mm, and an inner waterproof layer is further disposed on the inner liner layer, and when the tube body is horizontally placed, the inner waterproof layer covers a height less than a predetermined The surface of the inner liner is set to a height value.

In general, the above technical solutions conceived by the present invention mainly have the following technical advantages compared with the prior art:

1. When the integrated pipe gallery of the present invention is laid, the two integrated pipe corridors are symmetrically arranged on both sides of the road with the center line of the road, and the height from the top surface of the pipe gallery to the road surface is ≥1 m, which fully utilizes the effective space on both sides of the road, and It will not damage the original roads, reduce the construction work, improve the comprehensive application scope of the integrated pipe gallery through the reasonable setting of the pipe gallery and the reasonable arrangement of the pipes inside the pipe gallery, and is suitable for water pipes, water distribution pipes, reclaimed pipes, and heat. The pipelines such as water pipes, power cables and communication cables, and even the pipes such as sewage pipes originally installed on both sides of the road have the advantages of simple structure and strong applicability.

2. The invention passes the structure and cloth of key components such as load-bearing steel rings and detachable frame components The research and design of the specific installation method can effectively solve the problem that the support strength of the existing support members is poor and inconvenient to repair. The obtained support members meet the maintenance requirements of the pipe gallery while satisfying the support strength, and have a simple structure. It has the advantages of convenient processing, light weight, low cost, convenient construction and low engineering cost.

3. The invention improves the overall supporting strength of the supporting member by designing two structurally identical supporting units arranged along the axial direction of the pipe arranging L _{d ≤} 2 m, meeting the actual supporting demand, and between the two main supporting columns The width of the inspection passage formed is 1.0m or more, which can effectively meet the actual maintenance needs inside the pipe gallery.

4. The tension-type load-bearing steel ring obtained by the invention can meet the bearing capacity requirement and reliably tighten the inside of the pipe body according to the tension, thereby effectively improving the installation stability and reliability, and ensuring the pipe. Effective installation and arrangement of various types of pipes inside the gallery.

5. The invention combines a main support column, a sub-support column, a horizontal beam and a horizontal support beam to form a plurality of compartments for installing and arranging various types of pipes, and designing the four faces of the cabins to be a clear distance from the pipes to be arranged. b _d is ≥200mm, and the distance between each pipe to be arranged is set to ≥300mm, thereby facilitating the effective installation of various pipes without avoiding the overall size of the integrated pipe gallery.

6. The present invention sets the nominal diameter of the pipe body to be more than 2000 mm (e.g., 3000 mm to 10000 mm) by controlling the composition and structure of the various layers of the pipe body, and for each layer (especially the inner liner, and The materials used in the structural layer and the corresponding preparation process are optimized, so that the bamboo composite integrated pipe gallery has the advantages of large diameter, no stress and high strength, and is very suitable for being buried in the underground as an integrated pipe gallery, and can be effectively used. Ensure the service life of the pipe gallery.

[Description of the Drawings]

1 is a structural view of a bamboo composite integrated pipe gallery designed to accommodate multiple types of pipes according to an embodiment of the present invention;

2 is a structural view of a support member designed in accordance with an embodiment of the present invention;

3 is a schematic cross-sectional view of a support member designed in accordance with an embodiment of the present invention;

4 is a schematic structural view of a load bearing steel ring designed in accordance with an embodiment of the present invention;

Figure 5 (a) and (b) are internal piping layouts of the west and east side integrated pipe gallery designed according to an embodiment of the present invention;

Figure 6 is a layout view of an integrated pipe gallery designed underground according to an embodiment of the present invention;

7(a) and (b) are internal piping layouts of a west side and an east side integrated pipe gallery designed according to another embodiment of the present invention;

Figure 8 is a plan view of a composite pipe gallery designed underground in accordance with another embodiment of the present invention.

【detailed description】

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Further, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

1 is a structural view of a bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to an embodiment of the present invention, and FIG. 2 is a structural view of a support member designed according to an embodiment of the present invention, and FIG. 3 is a A schematic cross-sectional view of a support member designed in accordance with an embodiment of the present invention.

One embodiment, such as shown in Figure 1, is a bamboo composite integrated pipe gallery that can accommodate multiple types of pipes, the interior of which is embedded with a support member, as shown in Figures 2-3, the support member comprising two identical structures and along the The supporting unit arranged in the axial direction of the integrated pipe gallery, the spacing L _d between the two supporting units is set to ≤ 2 m, thereby ensuring that the bearing capacity of each supporting unit does not exceed the maximum load that can be withstood Force to ensure safety. Wherein, each support unit comprises a load-bearing steel ring 1 and a detachable frame assembly, and the load-bearing steel ring 1 is used for connecting other structures such as an internal pipe support to provide sufficient bearing capacity, and the load-bearing steel ring 1 can pass through any shape. Bonding, riveting, and the like are fixed on the inner surface of the pipe body. In the present embodiment, the load-bearing steel ring 1 is preferably a ring-shaped annular connecting member, which is directly fixed by tightening the annular connecting member. The inner surface of the pipe body does not need to be bonded or riveted, and the installation is convenient, and the structure of the pipe body can be prevented.

The structure of the load-bearing steel ring 1 can be various, as long as the zoom can be achieved, a specific embodiment is shown in FIG. 4, and FIG. 4 is a schematic structural view of a load-bearing steel ring designed according to an embodiment of the present invention. The thickness b of the steel ring is 10-20 mm and the width is 200-400 mm, so as to ensure long-term stable support of the inner pipe filled with the medium on the support frame, which is composed of a plurality of curved components 1-1 and two through the curved connecting plate 1-2 is connected to an open bearing steel ring 1 having two open ends 1-3 at the opening, the two open ends 1-3 being connected by fasteners such as a bolt and nut assembly, the curved connecting plate 1 - At least one of the two is provided with an elongated fastening hole 1-4. The curved assembly 1-1 and the curved connecting plate 1-2 are connected by fasteners such as bolts and nuts, and bolts or screws are passed through the elongated fastening provided on the curved connecting plate 1-2. Holes 1-4, when the fasteners of the open ends 1-3 are adjusted, bolts or screws or the like in the elongated fastening holes 1-4 can be moved in the elongated fastening holes 1-3 to achieve tension adjustment. . The total bearing capacity of each load-bearing steel ring 1 is less than or equal to 2000 kgf.

In order to reduce the thickness of the pipe wall so that the steel ring can also share a part of the ring stiffness, the load-bearing steel ring can be designed as a double-layer sandwich structure, that is, the steel ring section has an I-shaped structure, and the inner and outer two-layer steel ring and the intermediate steel The ribbed plate is assembled and welded. The thickness of the steel ring is 10-20 mm and the width is 200-400 mm. The thickness of the rib is 10-20 mm and the width is 50-100 mm. The structure can be used as both an internal frame connection structure and a pipe gallery reinforcement structure, which greatly improves the bearing performance of the pipe gallery.

In order to increase the support strength of the horizontal support beam, two bottom pillars 6 are arranged below the horizontal support beam 2, and a reinforcing beam is arranged between the bottom pillar 6 and the horizontal support beam 2.

In order to make the fixing method more reliable, in the embodiment, the inner surface of the pipe gallery tube is provided with a circumferential groove matching the bearing steel ring 1, so that the bearing steel ring 1 can be tightened and embedded in the circumferential concave The inside of the tank is thus attached to the inner surface of the tube. The load-bearing steel ring 1 is preferably directly installed after the pipe body is finished in the factory. After the installation, the pipe joint is made, and then the pipe joint is transported to the project site for pipe joint connection. After the connection is completed, the load-bearing steel ring 1 is connected to the inside such as the pipe. Other structures such as brackets.

In the present embodiment, the detachable frame assembly is installed in the load-bearing steel ring 1, which is assembled by the horizontal support beam 2, the vertical support column 3 and the horizontal beam 4, the horizontal support beam 2, the vertical support column 3 and the horizontal the cross member 4 are located in a plane perpendicular to the axial direction of the pipe rack, between the bolts and nuts connecting the beams, wherein the horizontal support beams 2 arranged horizontally, and at a distance from the bottom of the bearing steel ring positions. 1 h _k, h _k from the inside of the Pipe arrangement design (based on space considerations) and rainwater displacement determination; vertical support column 3 includes two main support columns 3-1 and several sub-support columns 3-2, two main support columns 3-1 are vertically arranged Between the load-bearing steel ring 1 and the horizontal support beam 2, the space between the two main support columns 3-1 serves as an access passage, and the distance between the two is ≥ 1.0 m, thereby facilitating the maintenance of the inside of the pipe gallery and When the pipelines inside the pipe gallery are transported, when the inspection vehicle or the transport vehicle is required for maintenance and pipeline transportation, the distance L needs to be ≥2.2m; the horizontal beam 4 is horizontally arranged on both sides of the load-bearing steel ring 1 and located at the main support column 3 Between the -1 and the load-bearing steel ring 1, a sub-support column 3-2 is arranged between the upper and lower horizontal beams 4 Thus, the main support column 3-1, the sub-support column 3-2 and the upper and lower horizontal beams 4 form a compartment for arranging the pipeline or the main support column 3-1, the sub-support column 3-2, the horizontal beam 4 and the horizontal support beam 2 constitutes a compartment for arranging the pipeline, and each compartment is located on both sides of the pipe trunk body, the net distance of the four faces of the compartment from the pipe to be arranged b _d ≥ 200 mm, each pipe to be arranged The distance between them is set to ≥300mm, thereby ensuring sufficient space to accommodate fittings such as pipe compensators, pressure valves, etc., and to perform internal pipe connection operations. Each detachable frame assembly has a bearing capacity of 500 kgf or less.

Specifically, the upper ends of the corresponding vertical support columns 3 on the adjacent two supporting units are connected by a connecting rod to ensure the connection strength between the supporting units, and the two vertical supporting columns 3 on the single supporting unit A connecting rod is arranged between the upper ends to ensure the supporting strength of the supporting column.

In the embodiment, the horizontal support beam 2 on the two adjacent support units is provided with a bottom plate 5, and the bottom plate 5 is provided with a drainage hole, and a space formed between the bottom plate 5 and the inner wall of the pipe gallery can serve as a drainage channel, and Can be used to arrange the largest pipe diameter or the heaviest pipe, and the drainage channel below the bottom plate can make full use of the pipe space, so that the pipe gallery has the function of timely drainage, and the largest pipe diameter or the heaviest pipe is arranged at the bottom, which can be reduced The requirement for the overall support strength of the support member. The inner surface of the pipe below the bottom plate 5 is provided with a waterproof layer made of a waterproof material. The waterproof material of the waterproof layer may be one selected from the group consisting of an unsaturated polyester resin, a polyurea resin, a polyester resin, a polyurethane resin, an epoxy resin, an asphalt, and a waterproof roll.

Specifically, when the integrated pipe gallery is actually laid, the two integrated pipe corridors are arranged symmetrically on both sides of the road with the center line of the road, and the height from the top surface of the pipe gallery to the road surface is ≥1 m, thereby ensuring that the current damage is not destroyed. On the premise of having a road, the roadway along the integrated pipe corridor is completed, and the pipe gallery is set to the height from the top surface to the road surface ≥1m, so as to prevent the excessive impact of road vehicles and other dynamic loads on the pipe gallery to ensure long-term safety. .

The integrated pipe gallery of the present invention may be formed by interconnecting a plurality of pipe bodies, and any one of the pipe bodies includes an inner liner layer, a structural layer and an outer protective layer in order from the inside to the outside in the pipe diameter direction;

The inner liner is obtained by curing a raw material including an inner liner resin and a bamboo fiber nonwoven fabric;

The structural layer is obtained by curing a raw material including a structural layer resin, a bamboo raft, a bio-based filler, and a mesh cloth; the structural layer is formed by stacking bamboo rafts and mesh cloths together, bamboo rafts and nets. The woven fabric is a structural layer resin which is added with a bio-based filler while being entangled.

In the present embodiment, the total thickness of the inner liner of the pipe gallery can be 5±0.5mm, and the preparation method can be referred to the preparation of the inner liner layer in the bamboo-wound composite pipe, and can be wound by the bamboo fiber nonwoven fabric impregnated with the resin. The inner lining resin used for the inner liner layer may be a water-soluble resin, such as a modified urea-formaldehyde resin, an aqueous polyurethane resin, a polyester resin, a modified silicone; in order to make the inner liner layer have weather resistance, fire resistance, mechanical properties, As well as water resistance, for bamboo fiber nonwovens:

Bamboo fiber content: ≥98%;

Area density: 40 ~ 50g / m ² ;

Tensile breaking strength: longitudinal direction ≥ 120N; transverse direction ≥ 30N;

Water content: 8 to 15%;

Water soak rate (25 ° C): ≤ 12 s.

The structural layer can also be prepared by referring to the preparation of a structural layer (also referred to as a reinforcing layer) in a bamboo-wound composite pipe, that is, a raw material including a structural layer resin, a bamboo raft, a bio-based filler, and a mesh cloth. After being solidified, the structural layer is formed by stacking bamboo rafts and mesh cloths together, and the bamboo rafts and the mesh fabrics are structural layer resins which are added with a bio-based filler while being entangled.

The structural resin may be an amino resin, and a filler may be added to the resin. The matrix resin should also meet the requirements of Table 1 after curing.

Table 1 Performance requirements after curing of matrix resin

性能performance	要求Claim
冲击强度a_cu(悬臂梁法)KJ/m² Impact strength a _cu (cantilever method) KJ/m ²	≥50≥50
拉伸强度MPaTensile strength MPa	≥20≥20
巴氏硬度Barcol hardness	≥40≥40
吸水率％Water absorption rate%	≤0.5≤0.5

The filler contained in the matrix resin is a biomass powder, and the properties are to comply with the requirements of Table 2.

Table 2 filler performance requirements

性能performance	要求Claim
杂质含量％Impurity content%	≤2.0≤2.0
纤维素含量％Cellulose content%	≥40≥40
细度P(目)Fineness P (mesh)	60≤P≤8060≤P≤80

The bamboo raft can adopt the ring-shaped bamboo raft belt and the axial bamboo raft belt, that is, the bamboo raft can be woven into the bamboo quilt curtain first, that is, the plurality of bamboo rafters are connected by the knitting line to form a bamboo curtain, wherein each bamboo raft is in the bamboo. The crotch curtains are arranged in parallel at equal intervals, and the bamboo curtain comprises an axial bamboo curtain and a circular bamboo curtain, wherein the axial direction of the axial bamboo curtain is consistent with the width direction of the bamboo sheet therein. The length direction of the ring-to-bamboo curtain is consistent with the length of the bamboo raft in it, and requires:

The radial tensile strength of the bamboo rafters is 80±20 MPa; the bamboo fiber content is 40±5%; and the water content is 10±2%. Tensile strength: 1500±100N for the ring bamboo raft and 200±20N for the axial bamboo raft.

When the bamboo raft is wrapped, the mesh cloth should be wrapped. The performance of the mesh fabric should meet the following requirements:

Material: polyester polyester;

Mesh center distance: 4mm × 4mm (that is, the distance between the center of the longitudinal mesh is 4mm, the latitudinal mesh The center distance is 4mm);

Area density: 30 ~ 40g / m ² ;

Tensile breaking strength: longitudinal direction ≥ 200N; latitudinal direction ≥ 150N;

Elongation at break (latitude and longitude): ≤5%;

Acid and strong retention rate (warp and weft): ≥90%.

The outer protective layer can be obtained by coating a gel coat resin adhesive, or using a polyurethane or polyurea waterproof paint, etc., so that the outer anticorrosive material has anti-aging, medium resistance, waterproof, impact resistance and puncture performance, and can refer to the standard "polyurethane". Waterproof coatings GB/T 19250, "spray polyurea protective materials" HG/T 3831 provisions.

The stiffness grade SN of the bamboo composite integrated pipe corridor of the invention is divided into 5000N/m ² , 8000N/m ² , 10000N/m ² , 15000N/m ² , 20000N/m ² , 25000N/m ² , 30000N/m ² , initial The ring stiffness S ₀ should be no less than the corresponding ring stiffness rating.

The impact strength a _{i of the} bamboo-wound composite pipe gallery material should satisfy: vertical lamination direction, a _i ≥35KJ/m ² ; parallel lamination direction, a _i ≥25KJ/m ² . Axial strength, such as the axial tensile strength of the pipe wall, the axial tensile strain at break should be not less than 1.5%.

In the present invention, the inner waterproof layer in the tube body may be located at the innermost layer of the bottom end of the pipe gallery (ie, on the surface of the inner liner layer, especially covering the surface of the inner liner layer below the preset height by a predetermined height, as shown in the figure. 1)), for waterproofing when draining, waterproof coating can be used; inner lining function: ensure that the inner surface is smooth and flat, rich in resin, good in aging resistance, otherwise the bamboo raft is exposed, but also resistant to impact and external force; External protective layer function: It should have anti-aging, medium resistance, waterproof, impact resistance and puncture performance, and can be coated with anti-corrosion coating.

In the present invention, the bamboo composite integrated pipe gallery can be formed by interconnecting a plurality of pipe bodies, and the length of the single pipe body can be set to 3 to 8 meters. The inner surface of the bamboo compound pipe should be smooth and flat, without cracks, delamination, impurities, gel-in areas, bubbles, etc.; the pipe ends should be flush; the edges should be free of burrs; the outer surface has no obvious defects. .

The invention is developed according to the mechanical design model of the bamboo winding material, and is adapted to adapt to large diameter and no stress. The processing technology of the bamboo winding material of the pipe gallery, taking the intermediate structure layer as an example, by controlling the winding process (for example, the bamboo raft and the mesh cloth are superimposed and wound together, the bamboo raft and the mesh cloth are added by the side winding edge. The structural layer resin of the bio-based filler; and the bamboo raft also adopts two kinds of arrangement methods, that is, the axial bamboo drapes and the hoop bamboo drapes, which can further improve the strength), and the raw materials used in the layer structure (for example) The selection and modification of bamboo rafts, mesh cloths, adhesives, such as structural resin and fillers, etc., make the resulting integrated pipe gallery have a large inner diameter and no stress.

The stress-free bamboo composite pipe gallery of the present invention is a high-strength composite material whose rigidity and strength can withstand the required load, including the weight of the structure and equipment, the self-weight of the pipeline inside the pipe gallery, the earth pressure, the groundwater pressure and buoyancy, the vehicle load, And other ground dynamic loads; and need to meet the anti-cracking waterproof and seismic requirements. The design of the stress-free bamboo composite pipe gallery is 100 years, the structural important coefficient is 1.1, the seismic intensity is 7 degrees, the impermeability grade is P6, and the anti-corrosion grade is the highest level. It can be applied to the harsh underground environment and ensure the service life. .

The integrated pipe gallery of the invention is suitable for laying various pipelines, such as water pipes, water distribution pipes, reclaimed water pipes, hot water pipes, power cables and communication cables, and according to actual needs and the space of the pipe gallery itself, Sewer pipes originally installed on both sides of the road are also placed inside the pipe gallery.

The arrangement of the integrated pipe gallery and the pipe in the pipe gallery according to the present invention will be explained more clearly below in conjunction with some specific embodiments.

Example 1

In this embodiment, in order to facilitate the layout of the integrated pipe gallery, the original sewage pipeline and the rainwater pipeline are not damaged, and the burying project is reduced. In this embodiment, the sewage and the rainwater pipeline are not included in the pipe gallery.

Firstly, the pipe gallery will be laid. Two pipe corridors will be laid according to the requirements. The outer diameter of the pipe gallery is D=3300, which is arranged symmetrically on both sides of the road. The thickness from the top of the pipe to the road surface is about 1000mm; the distance between the pipe corridors on both sides is the distance from the road boundary. As small as possible, the bottom of the pipe gallery is a concrete structure with a total width of about 20m.

Then arrange the inner tube, the west side entrance pipeline of the road includes one DN800 special water supply pipe, one DN600 water distribution pipe, one DN400 reclaimed water pipe, six circuit 10KV power cable, six circuit 35KV power cable, and the east side of the road. Including DN600 hot water pipe, DN400 hot water pipe, 36-hole communication pipeline; there are sewage and rainwater pipes on both sides of the road, and the entrance gallery is selected as needed.

When arranging, the layout of the west side pipe gallery is shown in Figure 5(a). The DN800 special water pipe is installed in the middle of the right side of the pipe gallery, the DN600 water distribution pipe is placed in the middle of the left side of the pipe gallery, and the DN400 reclaimed water pipe is installed in the pipe gallery. The lower part of the left side, and the smaller diameter and lighter weight power cable are arranged on the right side of the pipe gallery and the upper part of the left side; the arrangement of the east side pipe gallery is shown in Figure 5(b), the DN600 hot water pipe is set In the middle of the right side of the pipe gallery, the DN400 hot water pipe is placed at the lower part of the right side of the pipe gallery, while the smaller pipe diameter and lighter weight communication line are arranged at the upper part of the right side of the pipe gallery and the left side of the pipe gallery; When arranging, the distance between all the inner pipes and the pillars is not less than 200mm, and the distance between the pipes is not less than 300mm, the width of the pipe aisle is not less than 1000mm, and the height from the top of the pipe gallery to the road surface is 1000mm.

Example 2

In this embodiment, in order to increase the application range of the integrated pipe gallery and reduce the number of underground pipes, the sewage pipe is incorporated into the pipe gallery in this embodiment.

Firstly, the pipe gallery is laid, which is the same as the first embodiment. Two pipe corridors are laid according to requirements. The outer diameter of the pipe gallery is D=3300, which is arranged on both sides with the road line symmetry. The thickness of the pipe top to the road surface is about 1000mm; The distance from the pipe corridor to the road boundary line is as small as possible, and the bottom of the pipe gallery is a concrete structure with a total width of about 20 m.

Then arrange the inner tube, the pipeline on the west side of the road includes one DN800 special water supply pipe, one DN600 water distribution pipe, one DN400 reclaimed water pipe, six loop 10KV power cable, one DN400 sewage pipe, and six loop 35KV power cable. The pipeline on the east side of the road includes a DN600 hot water pipe, a DN400 hot water pipe, a DN400 sewage pipe, and a 36-hole communication pipeline. There are sewage and rainwater pipes on both sides of the road, and the entrance gallery is selected as needed.

When arranging, as shown in Figure 7(a), the DN800 special water pipe is placed in the middle of the right side of the pipe gallery, the DN400 sewage pipe is placed in the lower part of the right side of the pipe gallery, and the DN600 water distribution pipe is placed in the middle of the left side of the pipe gallery, DN400. The regenerative water pipe is arranged at the lower part of the left side of the pipe gallery, while the smaller diameter and weight of the power cable are arranged on the right side of the pipe gallery and the upper part of the left side; the arrangement of the east side pipe gallery is shown in Figure 7(b), DN600 The hot water pipe is arranged in the middle of the right side of the pipe gallery, the DN400 hot water pipe is arranged in the lower part of the right side of the pipe gallery, the DN400 sewage pipe is arranged in the lower part of the left side of the pipe gallery, and the smaller pipe diameter and the lighter weight communication line are It is arranged on the upper part of the right side of the pipe gallery and the upper middle part of the left side of the pipe gallery; when the whole arrangement is arranged, the distance between all the pipes inside the pipe wall and the pillar is not less than 200mm, and the distance between the pipes is not less than 300mm, the width of the pipe aisle Not less than 1000mm, the height from the top surface of the pipe gallery to the road surface is greater than 1000mm.

Those skilled in the art will appreciate that 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 scope of the present invention, All should be included in the scope of protection of the present invention.

Claims

A bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes, wherein the integrated pipe gallery is embedded with a supporting member, and the supporting member comprises a plurality of structurally identical and arranged along the axial direction of the integrated pipe gallery The supporting unit, the spacing L d between two adjacent supporting units is set to ≤ 2m, wherein:

Each support unit comprises a load-bearing steel ring (1) and a detachable frame assembly mounted in the load-bearing steel ring (1), comprising planes each lying perpendicular to the axial direction of the pipe gallery a horizontal support beam (2), a vertical support column (3) and a horizontal beam (4), wherein the horizontal support beam (2) is horizontally disposed at the bottom of the load-bearing steel ring; the vertical support column (3) ) comprising two main support columns (3-1) and a number of sub-support columns (3-2) arranged vertically on the load-bearing steel ring (1) and the horizontal support beam (2) The distance L between the two main support columns (3-1) is set to ≥1.0 m; the horizontal beams (4) are horizontally arranged on both sides of the load-bearing steel ring (1), and Located between the main support column (3-1) and the load-bearing steel ring (1), the sub-support column (3-2) is disposed between the upper and lower horizontal beams (4), thereby passing through the main support column (3) -1), secondary support column (3-2) and upper and lower horizontal beam (4) or main support column (3-1), secondary support column (3-2), horizontal beam (4) and horizontal support The beam (2) constitutes a plurality of compartments for arranging different pipes, the four faces of the compartment and the net distance bd of the pipe to be arranged Set ≥200mm, the distance between each of the pipe is arranged to be set to ≥ 300mm;

When the integrated pipe gallery is laid, the two integrated pipe corridors are arranged symmetrically on both sides of the road with the middle line of the road, and the height from the top surface of the pipe gallery to the road surface is ≥1 m.
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 1, wherein the plurality of types of pipes accommodated in the integrated pipe gallery include a water pipe, a water distribution pipe, a reclaimed water pipe, a hot water pipe, and electric power. Cables and communication cables, preferably, also include sewage pipes.
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 2, wherein the upper ends of the corresponding vertical support columns (3) on the two supporting units are connected The rods are connected, and the horizontal support beam (2) on the two supporting units is provided with a bottom plate (5), and the bottom plate (5) is provided with a drainage hole.
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 3, wherein the load-bearing steel ring (1) has a thickness of 10 to 20 mm and a width of 200 to 400 m, which is composed of a plurality of curved shapes. The two parts are connected by a curved connecting plate into a tensionable annular connecting piece having two open ends, the two open ends being connected by fasteners, at least one of which is provided with an elongated shape Solid hole.
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 4, wherein an inner surface of the pipe trunk body is provided with a circumferential groove matching the load-bearing steel ring (1) , the load-bearing steel ring (1) can be tightened and embedded in the circumferential groove to adhere to the inner surface of the pipe; the bottom support beam (2) is provided with two bottom columns (6), the bottom column (6) A reinforcing beam is disposed between the horizontal support beam (2).
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 5, wherein the integrated pipe gallery comprises a pipe body, and the pipe body comprises an inner lining layer in order from the inside to the outside in the pipe diameter direction. Structural layer and outer protective layer;

The inner liner layer is obtained by curing a raw material including an inner liner resin and a bamboo fiber nonwoven fabric;

The structural layer is obtained by curing a raw material including a structural layer resin, a bamboo raft, and a bio-based filler; the structural layer is formed by winding the bamboo raft, and the bamboo raft is added while being entangled The structural layer resin of the bio-based filler;

Further, the inner diameter of the pipe body is not less than 2000 mm, and the rigidity level is at least 5000 N/m 2 .
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 6, wherein, for the inner liner layer, the bamboo fiber nonwoven fabric satisfies: bamboo fiber content ≥ 98%; surface density 40 ～ 50g/m 2 ; tensile breaking strength: longitudinal ≥ 120N, transverse ≥ 30N; water content 8 ~ 15%; water permeation rate at 25 ° C: ≤ 12s;

For the structural layer, the structural layer resin satisfies after curing: impact strength a cu ≥ 50KJ / m 2 ; tensile strength ≥ 20MPa; Barcol hardness ≥ 50HBa; water absorption ≤ 0.5%;

The bio-based filler has a particle size of from 60 mesh to 80 mesh.
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 7, wherein said raw material in said structural layer further comprises a mesh cloth wrapped around said bamboo pole The mesh cloth satisfies: surface density 30-40 g/m 2 ; tensile breaking strength: longitudinal direction ≥ 200 N, weft direction ≥ 150 N; elongation at break ≤ 5%; acid retention rate ≥ 90%.
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 8, wherein, for the structural layer, the bamboo rafts satisfy: a radial tensile strength of 60 MPa to 100 MPa; and a bamboo fiber content of 35 %～45%; water content is 8%～12%; the bamboo raft is preferably a bamboo curtain, which is formed by connecting a plurality of bamboo rafts through a knitting line, wherein each bamboo raft is parallel in the width direction of the bamboo raft Arranged equidistantly, and the bamboo curtain comprises an axial bamboo curtain and a circular bamboo curtain, wherein a length direction of the axial bamboo curtain is consistent with a width direction of the bamboo sheet therein, the annular bamboo pole The longitudinal direction of the curtain coincides with the longitudinal direction of the bamboo slab; wherein the tensile strength of the circumferential bamboo stalk is 1400N to 1600N, and the tensile strength of the axial bamboo raft is 180N to 220N.
The bamboo composite integrated pipe gallery capable of accommodating a plurality of types of pipes according to claim 9, wherein the inner liner layer has a thickness of 4.5 mm to 5.5 mm, and an inner waterproof layer is further disposed on the inner liner layer. When the tube is horizontally placed, the inner waterproof layer covers a surface of the inner liner having a height less than a predetermined height value.