CN108005109B - Can hold compound utility tunnel of bamboo of polymorphic type pipeline - Google Patents
Can hold compound utility tunnel of bamboo of polymorphic type pipeline Download PDFInfo
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- CN108005109B CN108005109B CN201610931332.0A CN201610931332A CN108005109B CN 108005109 B CN108005109 B CN 108005109B CN 201610931332 A CN201610931332 A CN 201610931332A CN 108005109 B CN108005109 B CN 108005109B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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Abstract
The invention discloses a bamboo composite comprehensive pipe gallery capable of accommodating various types of pipelines, wherein a supporting member comprising a plurality of supporting units arranged along the axial direction of the pipe gallery is embedded in the bamboo composite comprehensive pipe gallery, each supporting unit comprises a bearing steel ring and a frame assembly, each frame assembly comprises a horizontal supporting beam, a vertical supporting column and a horizontal cross beam, the horizontal supporting beam is horizontally arranged, each vertical supporting column comprises two main supporting columns and a plurality of auxiliary supporting columns, and the two main supporting columns are vertically arranged between the steel rings and the horizontal supporting beams; the horizontal beams are horizontally arranged between the main supporting column and the bearing steel ring, and the auxiliary supporting column is arranged between the upper horizontal beam and the lower horizontal beam, so that a plurality of cabins for arranging different pipelines are formed by the main supporting column, the auxiliary supporting column, the horizontal beams and the horizontal supporting beams, and the clear distance between the four surfaces of the cabin and the pipelines is more than or equal to 200 mm; when the pipe gallery is laid, the two pipe galleries are symmetrically arranged at two sides of the road center line, and the height from the top surface to the road surface is more than or equal to 1 m. The invention has the advantages of simple structure, convenient construction, low construction cost and the like.
Description
Technical Field
The invention belongs to the technical field of municipal facilities, and particularly relates to a bamboo composite comprehensive pipe gallery capable of accommodating various types of pipelines.
Background
The piping lane is built in city underground and is used for laying the municipal facilities of municipal pipeline, its collection electric power, communication, broadcasting and TV, gas, plumbing, heating power etc. multiple municipal pipeline in an organic whole, effectively utilized the space under the road, practiced thrift underground space resource, also stopped each professional pipeline respectively not regularly excavated, to the influence that road and all ring edge borders caused, thoroughly solved problems such as "road zip fastener", "aerial spider web".
At present, regardless of cast-in-place formula or prefabricated formula, the reinforced concrete structure is adopted mostly to the piping lane, and above-mentioned this kind of structure consumes the material many, and the construction engineering volume is big, and the construction cycle is long, and the cost is high, is more and more difficult to adapt to the demand of modernized city construction. In order to solve the problems, some bamboo composite pipe galleries are provided, such as a prefabricated bamboo composite pipe gallery disclosed in CN201510565472.6 and a manufacturing method thereof, and an assembly type prefabricated bamboo composite pipe gallery disclosed in CN 201510565462.2. Above-mentioned two prior patents all disclose the supporting member who is used for in the piping lane for the installation that realizes all kinds of pipelines is arranged.
However, the above prior patents only simply explain the basic structure of the supporting member inside the pipe gallery, and specific explanations are not given to the overall arrangement of the pipe gallery, the specific arrangement modes of various pipes inside, the specific arrangement modes of the supporting member, the installation specifications and the like. In fact, the overall arrangement of the pipe gallery, the specific arrangement of the internal pipes, and the specific arrangement and installation of the supporting members will directly affect the specific application of the pipe gallery, the installation and arrangement of the pipes, and the maintenance of the interior of the pipe gallery. Consequently, need study design the compound utility tunnel of bamboo that can hold multi-type pipeline to enlarge utility tunnel's range of application, and when satisfying support intensity, accord with the inside maintenance demand of piping lane.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides the bamboo composite comprehensive pipe gallery capable of accommodating various types of pipelines, wherein the structural composition, arrangement and installation mode of key components are improved and redesigned, so that the comprehensive pipe gallery can be suitable for laying various types of pipelines, the support strength is met, and meanwhile, the overhaul requirement in the pipe gallery is met, and the comprehensive pipe gallery has the advantages of simple structure, light weight, convenience in construction, low engineering cost and the like.
To achieve the above objects, according to one aspect of the present invention, there is provided a bamboo composite utility tunnel capable of accommodating a plurality of types of pipes, wherein the utility tunnel comprises a pipe body having an inner diameter of not less than 2000mm and a rigidity rating of at least 5000N/m2The utility model discloses a utility tunnel, this utility tunnel's inside inlays and is equipped with supporting member, supporting member includes that a plurality of structures are the same and follow utility tunnel axial arrangement's support unit, interval L between two adjacent support unitsdIs set to ≦ 2m, where:
each supporting unit comprises a bearing steel ring and a detachable frame assembly, the detachable frame assembly is mounted in the bearing steel ring and comprises a horizontal supporting beam, a vertical supporting column and a horizontal cross beam which are all positioned on a plane perpendicular to the axial direction of the pipe gallery, and the horizontal supporting beam is horizontally arranged at the bottom of the bearing steel ring; the vertical supporting columns comprise two main supporting columns and a plurality of auxiliary supporting columns, the two main supporting columns are vertically arranged between the bearing steel ring and the horizontal supporting beam, and the distance L between the two main supporting columns is set to be more than or equal to 1.0 m; the horizontal cross beams are horizontally arranged on two sides of the bearing steel ring and are positioned between the main support column and the bearing steel ring, the auxiliary support column is arranged between the upper horizontal cross beam and the lower horizontal cross beam, therefore, a plurality of cabins for arranging different pipelines are formed by the main support column, the auxiliary support column, the upper horizontal cross beam, the lower horizontal cross beam, the main support column, the auxiliary support column, the horizontal cross beams and the horizontal support beams, the clear distance bd between the four surfaces of the cabin and the pipeline to be arranged is set to be more than or equal to 200mm, and the distance between each pipeline to be arranged is set to be more than or equal to 300 mm;
when the comprehensive pipe gallery is laid, the two comprehensive pipe galleries are symmetrically arranged on two sides of a road by the central line of the road, and the height from the top surface of the pipe gallery to the road surface is more than or equal to 1 m;
the pipe body sequentially comprises an inner liner, a structural layer and an outer protective layer from inside to outside along the pipe diameter direction; the lining layer is obtained by curing raw materials including lining layer resin and bamboo fiber non-woven fabric; the structural layer is obtained by curing raw materials including structural layer resin, bamboo skin and bio-based filler; the structural layer is formed by winding the bamboo skin, and the bamboo skin is the structural layer resin added with the bio-based filler while winding; the bamboo splits meet the following requirements: the radial tensile strength is 60 MPa to 100 MPa; the content of bamboo fiber is 35-45%; the water content is 8% -12%, and the structural layer resin meets the following requirements after curing: impact strength acu≥50 KJ/ m2(ii) a The tensile strength is more than or equal to 20 MPa; the Babbitt hardness is more than or equal to 50 HBa; the water absorption is less than or equal to 0.5 percent;
for the inner liner, the bamboo fiber non-woven fabric satisfies: bamboo fiber containingThe content is more than or equal to 98 percent; the surface density is 40 to 50 g/m2(ii) a Tensile breaking strength: the longitudinal direction is more than or equal to 120N, and the transverse direction is more than or equal to 30N; the water content is 8-15%; the water penetration rate at 25 ℃ is less than or equal to 12 s;
the raw materials in the structural layer also comprise grid cloth, and the grid cloth is wound outside the bamboo skin; the grid cloth satisfies the following conditions: the surface density is 30 to 40 g/m2(ii) a Tensile breaking strength: the longitudinal direction is more than or equal to 200N, and the latitudinal direction is more than or equal to 150N; the elongation at break is less than or equal to 5 percent; the retention rate of acid-resistant strength is more than or equal to 90 percent.
As a further preferred, the multiple types of pipes that can be accommodated in the utility tunnel include water pipes, water distribution pipes, regenerated water pipes, hot water pipes, power cables, communication cables, and sewage pipes.
Preferably, the upper ends of the corresponding vertical supporting columns on the two supporting units are connected through a connecting rod, a bottom plate is erected on the horizontal supporting beams on the two supporting units, and a water drainage hole is formed in the bottom plate.
Preferably, the thickness of the bearing steel ring is 10-20 mm, the width of the bearing steel ring is 200-400 m, the bearing steel ring is a tension annular connecting piece which is formed by connecting a plurality of arc-shaped assemblies in pairs through arc-shaped connecting plates and has two open ends, the two open ends are connected through a fastening piece, and at least one of the arc-shaped connecting plates is provided with a long fastening hole.
Preferably, the inner surface of the pipe gallery body is provided with a circumferential groove matched with the bearing steel ring, so that the bearing steel ring can be tensioned and embedded in the circumferential groove to be attached to the inner surface of the pipe body; two bottom columns are arranged below the horizontal supporting beam, and a reinforcing beam is arranged between each bottom column and the horizontal supporting beam.
Preferably, the bamboo skin is a bamboo skin curtain formed by connecting a plurality of bamboo skin pieces through weaving lines, wherein each bamboo skin piece is arranged in parallel at equal intervals in the width direction of the bamboo skin piece, and the bamboo skin curtain comprises an axial bamboo skin curtain and a circumferential bamboo skin curtain, wherein the length direction of the axial bamboo skin curtain is consistent with the width direction of the bamboo skin piece, and the length direction of the circumferential bamboo skin curtain is consistent with the length direction of the bamboo skin piece; in addition, the tensile strength of the circumferential bamboo skin curtain is 1400N-1600N, and the tensile strength of the axial bamboo skin curtain is 180N-220N.
Preferably, the thickness of the inner liner layer is 4.5 mm-5.5 mm, an inner waterproof layer is further arranged on the inner liner layer, and when the pipe body is horizontally placed, the inner waterproof layer covers the surface of the inner liner layer with the height smaller than a preset height value.
Generally, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:
1. when the comprehensive pipe gallery is laid, the two comprehensive pipe galleries are symmetrically arranged on two sides of a road by the central line of the road, the height from the top surface of the pipe gallery to the road surface is more than or equal to 1m, the effective space on two sides of the road is fully utilized, the original road cannot be damaged, the construction engineering is reduced, the comprehensive application range of the comprehensive pipe gallery is greatly improved by reasonably arranging the pipe gallery and reasonably arranging each pipeline in the pipe gallery, the comprehensive pipe gallery is suitable for laying each pipeline such as a water conveying pipe, a water distribution pipe, a regenerated water pipe, a hot water pipe, a power cable and a communication cable, even the pipeline such as a sewage pipe and the like originally arranged on two sides of the road, and the comprehensive pipe gallery has the advantages of simple structure.
2. According to the invention, by researching and designing the structures, the arrangement and the specific installation modes of key components such as the bearing steel ring and the detachable frame component, the problems of poor supporting strength and inconvenience in maintenance of the existing supporting member can be effectively solved, the obtained supporting member meets the maintenance requirement in the pipe gallery while meeting the supporting strength, and the supporting member has the advantages of simple structure, convenience in processing, light weight, low cost, convenience in construction, low engineering cost and the like.
3. The invention designs the distance LdTwo the same and support element along the piping lane axial arrangement of structure that are less than or equal to 2m have improved supporting member's whole support intensity, satisfy the actual demand of supporting to the width of the maintenance passageway that forms between two main tributary daggers can effectively satisfy the inside actual need of overhauing of piping lane more than 1.0 m.
4. The tension type bearing steel ring obtained through design can reliably tension in the pipe body of the pipe gallery according to tension while meeting the bearing requirement, so that the installation stability and reliability are effectively improved, and the effective installation and arrangement of various pipelines in the pipe gallery are ensured.
5. The invention forms a plurality of cabins for installing and arranging various pipelines by the combination of the main supporting columns, the auxiliary supporting columns, the horizontal cross beams and the horizontal supporting beams, and designs the clear distance b between the four surfaces of the cabin and the pipeline to be arrangeddAll be greater than or equal to 200mm, and every distance of waiting to arrange between the pipeline is set for and is greater than or equal to 300mm, from this, under the prerequisite that avoids utility tunnel overall dimension can not be too big, the effective installation of all kinds of pipelines of being convenient for.
6. The invention sets the nominal diameter of the pipe gallery body above 2000mm (such as 3000mm to 10000 mm), and optimizes the materials used by each layer (especially the lining layer and the structural layer) and the corresponding preparation process by controlling the composition and structure of each layer of the pipe gallery body, so that the bamboo composite comprehensive pipe gallery has the advantages of large caliber, no stress and high strength, is very suitable for being buried underground as a comprehensive pipe gallery, and can effectively ensure the service life of the pipe gallery.
Drawings
FIG. 1 is a block diagram of a bamboo composite utility tunnel designed to accommodate multiple types of pipes according to an embodiment of the present invention;
FIG. 2 is a block diagram of a support member according to one embodiment of the present invention;
FIG. 3 is a cross-sectional structural view of a support member according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a load-bearing steel ring according to an embodiment of the present invention;
FIGS. 5 (a) and (b) are internal piping layout diagrams of a west side and east side utility tunnel, respectively, designed according to an embodiment of the present invention;
figure 6 is a layout of a utility tunnel in the ground according to one embodiment of the present invention;
FIGS. 7 (a) and (b) are internal piping layout diagrams of a west side and east side utility tunnel, respectively, according to another embodiment of the present invention;
figure 8 is a layout of a utility tunnel in the ground according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a structural view of a bamboo composite utility tunnel capable of accommodating a plurality of types of pipes according to an embodiment of the present invention, fig. 2 is a structural view of a support member according to an embodiment of the present invention, and fig. 3 is a sectional structural view of a support member according to an embodiment of the present invention.
One embodiment is shown in fig. 1, a bamboo composite utility tunnel capable of accommodating a plurality of types of pipelines, wherein a supporting member is embedded in the bamboo composite utility tunnel, as shown in fig. 2-3, the supporting member comprises two supporting units which have the same structure and are arranged along the axial direction of the utility tunnel, and the distance L between the two supporting unitsdThe bearing capacity born by each supporting unit is not more than 2m, so that the bearing capacity born by each supporting unit is not more than the maximum bearing capacity born by each supporting unit, and the safety is ensured. Wherein, every supporting element includes bearing steel ring 1 and detachable frame subassembly, bearing steel ring 1 is used for connecting other structures such as inside pipe support to provide sufficient bearing capacity, bearing steel ring 1 can be arbitrary shape through bonding, multiple modes such as riveting are fixed at the internal surface of piping lane body, in this embodiment, but bearing steel ring 1 preferred is the annular connecting piece that rises, through rising ring connecting piece that rises, make its snap-on at the internal surface of piping lane body, do not need to bond or rivet again, and simple to operate, and can not destroy the structure of body.
The structure of the bearing steel ring 1 can be various as long as the scaling can be realized, one specific embodiment is as shown in fig. 4, fig. 4 is a schematic structural view of the bearing steel ring designed according to one embodiment of the present invention, the thickness b of the bearing steel ring is 10-20 mm, and the width is 200-400 mm, so as to ensure long-term stable support of the medium-filled internal pipeline on the support frame, the bearing steel ring 1 is formed by connecting a plurality of arc-shaped components 1-1 two by two through arc-shaped connecting plates 1-2 to form an open bearing steel ring 1, the open part has two open ends 1-3, the two open ends 1-3 are connected through fasteners such as bolt-nut components, and at least one of the arc-shaped connecting plates 1-2 is provided with a long fastening hole 1-4. The arc-shaped assembly 1-1 is connected with the arc-shaped connecting plate 1-2 through fasteners such as bolts and nuts, bolts or screws penetrate through the long fastening holes 1-4 formed in the arc-shaped connecting plate 1-2, and when the fasteners at the opening ends 1-3 are adjusted, the bolts or screws in the long fastening holes 1-4 can move in the long fastening holes 1-3, so that tensioning adjustment is achieved. Each load-bearing steel ring 1 bears a total force of 2000kgf or less.
In order to reduce the thickness of the wall of the pipe gallery and enable the steel rings to share part of the ring stiffness, the bearing steel ring can be designed into a double-layer sandwich structure, namely the section of the steel ring is an I-shaped structure and is formed by splicing and welding an inner layer steel ring, an outer layer steel ring and a middle steel rib plate, the thickness of the steel ring is 10-20 mm, and the width of the steel ring is 200-400 mm; the thickness of the rib plate is 10-20 mm, and the width is 50-100 mm. This structure can regard as inside frame connection structure, also can regard as piping lane reinforcing structure, increases substantially piping lane hoop bearing performance.
In order to improve the supporting strength of the horizontal supporting beam, two bottom columns 6 are arranged below the horizontal supporting beam 2, and a reinforcing beam is arranged between the bottom columns 6 and the horizontal supporting beam 2.
In order to make the fixing mode more reliable, in this embodiment, the inner surface of the pipe gallery pipe body is provided with a circumferential groove matched with the bearing steel ring 1, so that the bearing steel ring 1 can be tensioned and embedded in the circumferential groove to be attached to the inner surface of the pipe body. The bearing steel ring 1 is preferably directly installed after a pipe body is manufactured in a factory, pipe joints are manufactured after the installation is finished, then the pipe joints are transported to an engineering site to be connected, and other structures such as a pipeline bracket are connected to the inside of the bearing steel ring 1 after the connection is finished.
In this embodiment, detachable frame subassembly is installed in bearing steel ring 1, and it is assembled by horizontal support beam 2, vertical support column 3 and horizontal beam 4 and is accomplished, and horizontal support beam 2, vertical support column 3 and horizontal beam 4 all are located the axial plane of this piping lane of perpendicular to, connect with bolt and nut between each roof beam, and wherein, horizontal support beam 2 level sets up to apart from 1 bottom h of bearing steel ringkAt position h ofkDetermined by the internal pipe layout design (based on space considerations) and rain water discharge; the vertical supporting columns 3 comprise two main supporting columns 3-1 and a plurality of auxiliary supporting columns 3-2, the two main supporting columns 3-1 are vertically arranged between the bearing steel ring 1 and the horizontal supporting beam 2, the space between the two main supporting columns 3-1 serves as an overhauling channel, and the distance L between the two main supporting columns is more than or equal to 1.0m, so that the overhauling of the interior of the pipe gallery and the transportation of each pipeline in the pipe gallery can be facilitated, and when an overhauling vehicle or a transport vehicle is required to be adopted for overhauling and pipeline transportation, the distance L is more than or equal to 2.2 m; the horizontal beams 4 are horizontally arranged on two sides of the bearing steel ring 1 and are positioned between the main support column 3-1 and the bearing steel ring 1, the auxiliary support column 3-2 is arranged between the upper horizontal beam 4 and the lower horizontal beam 4, therefore, a cabin for arranging pipelines is formed by the main support column 3-1, the auxiliary support column 3-2, the upper horizontal beam 4 and the lower horizontal beam 4 or a cabin for arranging pipelines is formed by the main support column 3-1, the auxiliary support column 3-2, the horizontal beams 4 and the horizontal support beams 2, each cabin is positioned on two sides of the pipe gallery body, and the four surfaces of each cabin are at the clear distance b from the pipeline to be arrangedd200mm or more, and the distance between each of the pipes to be arranged is set to 300mm or more, thereby ensuring that there is enough space to accommodate fittings such as pipe compensators, pressure valves, etc., and enabling the connection operation of the internal pipes. Each detachable frame assembly has a bearing capacity of less than or equal to 500 kgf.
Specifically, the upper ends of the corresponding vertical supporting columns 3 on the two adjacent supporting units are connected through the connecting rod to ensure the connecting strength between the supporting units, and the connecting rod is arranged between the upper ends of the two vertical supporting columns 3 on the single supporting unit to ensure the supporting strength of the supporting columns.
In this embodiment, the bottom plate 5 is erected on the horizontal support beams 2 on two adjacent support units, the drain holes are formed in the bottom plate 5, the space formed between the bottom plate 5 and the inner wall of the pipe gallery can be used as a drain channel and can be used for arranging the largest pipe diameter or the heaviest pipeline, the drain channel is arranged below the bottom plate, the space of the pipe gallery can be fully utilized, the pipe gallery has a timely drain function, the largest pipe diameter or the heaviest pipeline is arranged at the bottom, and the requirement on the overall support strength of the support member can be lowered. The inner surface of the pipeline below the bottom plate 5 is provided with a waterproof layer which is made of waterproof materials. The waterproof material of the waterproof layer can be one of unsaturated polyester resin, polyurea resin, polyester resin, polyurethane resin, epoxy resin, asphalt and waterproof coiled materials.
The utility model discloses a comprehensive pipe gallery, including the piping lane, the piping lane top surface is to the road pavement, the height of road pavement is to the piping lane top surface, the height of road pavement is to the height of road pavement, the piping lane is to the height of its top surface to road pavement is to the height of road pavement, the piping lane is to the height of road pavement, the pipeline is to the excessive impact of dynamic load such as preventing road vehicle, guarantee long-term security.
The comprehensive pipe gallery can be formed by connecting a plurality of pipe bodies, and any one pipe body sequentially comprises an inner lining layer, a structural layer and an outer protective layer from inside to outside along the pipe diameter direction; wherein,
the lining layer is obtained by curing raw materials comprising lining layer resin and bamboo fiber non-woven fabric;
the structural layer is obtained by curing raw materials including structural layer resin, bamboo skin, bio-based filler and grid cloth; the structural layer is formed by overlapping and winding a bamboo skin and a grid cloth, wherein the bamboo skin and the grid cloth are structural layer resin added with bio-based filler while winding.
In the implementation, the total thickness of the lining layer of the pipe gallery pipe body can be 5 +/-0.5 mm, the preparation mode can refer to the preparation of the lining layer in the bamboo winding composite pipeline, the lining layer can be formed by winding bamboo fiber non-woven fabrics soaked with resin, and the lining resin adopted by the lining layer can be water-soluble resin, such as modified urea-formaldehyde resin, water-based polyurethane resin, polyester resin and modified organic silicon; in order to make the inner liner layer have weather resistance, fire resistance, mechanical properties, and water resistance, the bamboo fiber nonwoven fabric requires:
bamboo fiber content: more than or equal to 98 percent;
surface density: 40 to 50 g/m2；
Tensile breaking strength: the longitudinal direction is more than or equal to 120N; the transverse direction is more than or equal to 30N;
water content: 8-15%;
water soak rate (25 ℃): less than or equal to 12 s.
The preparation method of the structural layer can also refer to the preparation of the structural layer (also called as an enhancement layer) in the bamboo-wound composite pipeline, namely the structural layer is obtained by curing raw materials including structural layer resin, bamboo skin, bio-based filler and grid cloth; the structural layer is formed by overlapping and winding a bamboo skin and a grid cloth, wherein the bamboo skin and the grid cloth are structural layer resin added with bio-based filler while winding.
The structural resin can adopt amino resin, and the resin can be added with filler. The matrix resin should also satisfy the specifications of table 1 after curing and molding.
TABLE 1 Property requirements after curing of matrix resins
| Performance of | Require that |
| Impact strength acu(cantilever beam method) KJ/m2 | ≥50 |
| Tensile strength MPa | ≥20 |
| Babbitt hardness | ≥40 |
| Water absorption% | ≤0.5 |
The filler contained in the matrix resin is biomass powder, and the properties thereof are as specified in Table 2.
TABLE 2 Filler Performance requirements
| Performance of | Require that |
| Content of impurities% | ≤2.0 |
| Content of cellulose% | ≥40 |
| Fineness P (mesh) | 60≤P≤80 |
The thin bamboo strips used for weaving can adopt hoop thin bamboo strips used for weaving curtain and axial thin bamboo strips used for weaving curtain, is about to many thin bamboo strips used for weaving the line and connects formation thin bamboo strips used for weaving curtain, and wherein each thin bamboo strips used for weaving piece parallel equidistance interval arrangement in thin bamboo strips used for weaving piece width direction, just thin bamboo strips used for weaving curtain includes axial thin bamboo strips used for weaving curtain and hoop thin bamboo strips used for weaving curtain, wherein the length direction of axial thin bamboo strips used for weaving curtain is unanimous with thin bamboo strips used for weaving piece width direction wherein, the length direction of hoop thin bamboo strips used for weaving curtain is unanimous with thin bamboo strips used for weaving piece length direction wherein to require:
the radial tensile strength of the bamboo split strips is 80 +/-20 MPa; the content of bamboo fiber is 40 plus or minus 5 percent; the water content is 10 +/-2%. Tensile strength: the circumferential bamboo split curtain is 1500 +/-100N, and the axial bamboo split curtain is 200 +/-20N.
The bamboo strip should wrap up the net cloth when winding, and the net cloth performance should accord with following requirement:
the material is as follows: polyester terylene;
mesh center distance: 4mm x 4mm (i.e. the longitudinal mesh centre distance is 4mm, the latitudinal mesh centre distance is 4 mm);
surface density: 30 to 40 g/m2；
Tensile breaking strength: the longitudinal direction is more than or equal to 200N; the weft direction is more than or equal to 150N;
elongation at break (warp, weft): less than or equal to 5 percent;
acid-resistant strength retention (warp, weft): not less than 90 percent.
The outer protective layer can be obtained by coating gel coat resin adhesive, or polyurethane or polyurea waterproof paint and the like is adopted, so that the outer anticorrosive material has the performances of aging resistance, medium resistance, water resistance, impact resistance, puncture resistance and the like, and can be specified according to the standards GB/T19250 and the protection material HG/T3831.
The rigidity grade SN of the bamboo composite comprehensive pipe gallery ring is 5000N/m2，8000 N/m2，10000 N/m2，15000N/m2，20000N/m2，25000N/m2，30000N/m2Initial ring stiffness S0Should not be less than the corresponding ring stiffness rating value.
Impact strength a of bamboo-wound composite pipe gallery materialiIt should satisfy: perpendicular to the direction of lamination, ai≥35KJ/m2(ii) a Parallel lamination directions, ai≥25KJ/m2. Axial strength, such as axial tensile strength of the pipe gallery wall, should be at least 1.5% at axial tensile failure.
In the invention, the inner waterproof layer in the pipe body can be positioned at the innermost layer (namely positioned on the surface of the lining layer, particularly covering the surface of the lining layer which is positioned below a preset height and takes the preset height as a boundary, as shown in figure 1) at the bottom end of the pipe gallery for preventing water during drainage, and waterproof paint can be adopted; the function of the inner liner layer is as follows: the inner surface is ensured to be smooth and flat, the resin is rich, the aging resistance is good, otherwise, the bamboo splits are exposed and also have the shock resistance and the external force resistance; the function of an outer protective layer: should possess anti-aging, resistant medium, waterproof, shock-resistant and puncture-resistant properties, can adopt anticorrosive coating.
The bamboo composite comprehensive pipe gallery can be formed by mutually connecting a plurality of pipe bodies, and the length of a single pipe body can be set to be 3-8 m. The inner surface of the bamboo composite pipe is smooth and flat, and has no phenomena of cracking, layering, impurities, poor glue areas, bubbles and the like which have influence on the service performance; the pipe ends are flush; the edge should be burr-free; the outer surface has no obvious defects.
The invention designs a bamboo winding material processing technology suitable for a large-diameter and stress-free pipe gallery according to a mechanical design model of a bamboo winding material, takes an intermediate structural layer as an example, and controls the winding technology (for example, the bamboo skin and grid cloth are wound together by overlapping, the bamboo skin and the grid cloth are structural layer resin added with bio-based filler while winding, and the bamboo skin also adopts 2 arrangement modes, namely an axial bamboo skin curtain and a circumferential bamboo skin curtain, which can further improve the strength), and performs model selection and modification research on raw materials (such as the bamboo skin, the grid cloth and an adhesive, such as structural layer resin, the filler and the like) used in a layer structure, so that the finally obtained comprehensive pipe gallery has the effects of large inner diameter and no stress.
The stress-free bamboo composite pipe gallery is a high-strength composite material, the rigidity and the strength of the stress-free bamboo composite pipe gallery can bear required loads, and the stress-free bamboo composite pipe gallery comprises structure and equipment dead weight, pipe line dead weight in the pipe gallery, soil pressure, underground water pressure and buoyancy, automobile load and other ground dynamic loads; and the requirements of crack resistance, water resistance and earthquake resistance need to be met. The design service life of the stress-free bamboo composite pipe gallery is 100 years, the structural importance coefficient is 1.1, the seismic intensity is 7 degrees, the anti-permeability grade is P6, the corrosion resistance grade is the highest grade, the stress-free bamboo composite pipe gallery can be applied to the underground environment with severe conditions, and the service life is ensured.
The comprehensive pipe rack is suitable for laying various pipelines, such as water conveying pipes, water distribution pipes, regenerated water pipes, hot water pipes, power cables, communication cables and other pipelines, and sewage pipes originally arranged on two sides of a road can be laid in the pipe rack according to actual needs and the size of the space of the pipe rack.
The layout of the utility tunnel and the pipes in the pipe tunnel according to the invention will be explained more clearly below with reference to some specific examples.
Example 1
In this embodiment, in order to facilitate the laying of utility tunnel, do not destroy original sewage pipeline and rainwater pipeline, reduce and bury the engineering underground, sewage and rainwater pipeline do not all come into the piping lane in this embodiment.
Firstly, laying a pipe gallery, laying two pipe galleries according to requirements, wherein the outer diameter D =3300 of the pipe gallery is symmetrically distributed on two sides of the pipe gallery according to a road center line, and the thickness from the pipe top to the road surface is about 1000 mm; the distance between the pipe gallery on two sides and the boundary line of the road is as small as possible, the bottom of the pipe gallery is of a concrete structure, and the total width is about 20 m.
Then arranging inner pipes, wherein the pipeline of the road west side corridor comprises 1 DN800 special water pipe, 1 DN600 water distribution pipe, one DN400 regenerated water pipe, a 6-loop 10KV power cable and a 6-loop 35KV power cable; the east side corridor pipeline of the road comprises one DN600 hot water pipeline, one DN400 hot water pipeline and a 36-hole communication pipeline; the two sides of the road are respectively provided with a sewage pipeline and a rainwater pipeline, and the corridor is selected according to needs.
During arrangement, the west pipe gallery arrangement mode is as shown in fig. 5 (a), a DN800 special water pipe is arranged in the middle of the right side of the pipe gallery, a DN600 water distribution pipe is arranged in the middle of the left side of the pipe gallery, a DN400 regenerated water pipe is arranged at the lower part of the left side of the pipe gallery, and power cables with smaller pipe diameters and lighter weight are arranged at the upper parts of the right side and the left side of the pipe gallery; the east pipe gallery is arranged in a manner shown in fig. 5 (b), wherein a DN600 hot water pipeline is arranged in the middle of the right side of the pipe gallery, a DN400 hot water pipeline is arranged at the lower part of the right side of the pipe gallery, and communication pipelines with smaller pipe diameters and lighter weight are arranged at the upper part of the right side of the pipe gallery and the left side of the pipe gallery; when whole arranging, inside all pipelines are all not less than 200mm apart from pipe corridor wall and pillar distance, and the distance between the pipeline is not less than 300mm, and piping lane passageway width is not less than 1000mm, and the height of piping lane top surface to road surface is 1000 mm.
Example 2
In this embodiment, in order to increase the application range of the utility tunnel and reduce the number of underground pipes, sewage pipes are taken into the pipe gallery in this embodiment.
Firstly, laying a pipe gallery, wherein the same as the embodiment 1, two pipe galleries are laid according to requirements, the outer diameter D =3300 of each pipe gallery is symmetrically distributed on two sides of a road center line, and the thickness from the pipe tops to the road surface is about 1000 mm; the distance between the pipe gallery on two sides and the boundary line of the road is as small as possible, the bottom of the pipe gallery is of a concrete structure, and the total width is about 20 m.
Then arranging inner pipes, wherein the pipeline of the road west side corridor comprises 1 DN800 special water pipe, 1 DN600 water distribution pipe, one DN400 regenerated water pipe, one 6-loop 10KV power cable, one DN400 sewage pipe and one 6-loop 35KV power cable; the east side corridor pipeline of the road comprises one DN600 hot water pipeline, one DN400 sewage pipe and a 36-hole communication pipeline; the two sides of the road are respectively provided with a sewage pipeline and a rainwater pipeline, and the corridor is selected according to needs.
When the device is arranged, as shown in fig. 7 (a), a special water delivery pipe of DN800 is arranged in the middle of the right side of the pipe gallery, a sewage pipe of DN400 is arranged at the lower part of the right side of the pipe gallery, a water distribution pipe of DN600 is arranged in the middle of the left side of the pipe gallery, a regenerated water pipe of DN400 is arranged at the lower part of the left side of the pipe gallery, and power cables with smaller pipe diameters and weights are arranged at the upper parts of the right side and the; the east pipe gallery is arranged in a manner shown in fig. 7 (b), wherein a DN600 hot water pipeline is arranged in the middle of the right side of the pipe gallery, a DN400 hot water pipeline is arranged at the lower part of the right side of the pipe gallery, a DN400 sewage pipeline is arranged at the lower part of the left side of the pipe gallery, and communication pipelines with smaller pipe diameters and lighter weight are arranged at the upper part of the right side of the pipe gallery and the middle upper part of the left side of the pipe gallery; when whole arranges, inside all pipelines are all not less than 200mm apart from pipe corridor wall and pillar distance, and the distance between the pipeline is not less than 300mm, and piping lane passageway width is not less than 1000mm, and the height of piping lane top surface to road surface is greater than 1000 mm.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a compound utility tunnel of bamboo that can hold polymorphic type pipeline, a serial communication port, utility tunnel includes the body, and 2000mm are no less than to the internal diameter of this body, and the rigidity grade is 5000N/m at least2The utility model discloses a utility tunnel, this utility tunnel's inside inlays and is equipped with supporting member, supporting member includes that a plurality of structures are the same and follow utility tunnel axial arrangement's support unit, interval L between two adjacent support unitsdIs set to ≦ 2m, where:
each supporting unit comprises a bearing steel ring and a detachable frame assembly, the detachable frame assembly is mounted in the bearing steel ring and comprises a horizontal supporting beam, a vertical supporting column and a horizontal cross beam which are all positioned on a plane perpendicular to the axial direction of the pipe gallery, and the horizontal supporting beam is horizontally arranged at the bottom of the bearing steel ring; the vertical supporting columns comprise two main supporting columns and a plurality of auxiliary supporting columns, the two main supporting columns are vertically arranged between the bearing steel ring and the horizontal supporting beam, and the distance L between the two main supporting columns is set to be more than or equal to 1.0 m; the horizontal cross beams are horizontally arranged on two sides of the bearing steel ring and are positioned between the main support column and the bearing steel ring, the auxiliary support column is arranged between the upper horizontal cross beam and the lower horizontal cross beam, therefore, a plurality of cabins for arranging different pipelines are formed by the main support column, the auxiliary support column, the upper horizontal cross beam, the lower horizontal cross beam, the main support column, the auxiliary support column, the horizontal cross beams and the horizontal support beams, the clear distance bd between the four surfaces of the cabin and the pipeline to be arranged is set to be more than or equal to 200mm, and the distance between each pipeline to be arranged is set to be more than or equal to 300 mm;
when the comprehensive pipe gallery is laid, the two comprehensive pipe galleries are symmetrically arranged on two sides of a road by the central line of the road, and the height from the top surface of the pipe gallery to the road surface is more than or equal to 1 m;
the pipe body sequentially comprises an inner liner, a structural layer and an outer protective layer from inside to outside along the pipe diameter direction; the lining layer is obtained by curing raw materials including lining layer resin and bamboo fiber non-woven fabric; the structural layer is made of resin, bamboo skin and organismThe raw materials including the base filler are obtained after solidification; the structural layer is formed by winding the bamboo skin, and the bamboo skin is the structural layer resin added with the bio-based filler while winding; the bamboo splits meet the following requirements: the radial tensile strength is 60 MPa to 100 MPa; the content of bamboo fiber is 35-45%; the water content is 8% -12%, and the structural layer resin meets the following requirements after curing: impact strength acu≥50 KJ/ m2(ii) a The tensile strength is more than or equal to 20 MPa; the Babbitt hardness is more than or equal to 50 HBa; the water absorption is less than or equal to 0.5 percent;
for the inner liner, the bamboo fiber non-woven fabric satisfies: the content of bamboo fiber is more than or equal to 98 percent; the surface density is 40 to 50 g/m2(ii) a Tensile breaking strength: the longitudinal direction is more than or equal to 120N, and the transverse direction is more than or equal to 30N; the water content is 8-15%; the water penetration rate at 25 ℃ is less than or equal to 12 s;
the raw materials in the structural layer also comprise grid cloth, and the grid cloth is wound outside the bamboo skin; the grid cloth satisfies the following conditions: the surface density is 30 to 40 g/m2(ii) a Tensile breaking strength: the longitudinal direction is more than or equal to 200N, and the latitudinal direction is more than or equal to 150N; the elongation at break is less than or equal to 5 percent; the retention rate of acid-resistant strength is more than or equal to 90 percent.
2. The bamboo composite utility tunnel capable of accommodating multiple types of pipelines according to claim 1, wherein the multiple types of pipelines which can be accommodated in the utility tunnel comprise a water delivery pipe, a water distribution pipe, a regenerated water pipe, a hot water pipe, a power cable, a communication cable and a sewage pipe.
3. The bamboo composite pipe gallery capable of accommodating multiple types of pipelines as claimed in claim 2, wherein the upper ends of the corresponding vertical supporting columns of the two supporting units are connected through a connecting rod, a bottom plate is erected on the horizontal supporting beams of the two supporting units, and the bottom plate is provided with a water drainage hole.
4. The bamboo composite pipe gallery capable of accommodating multiple types of pipelines according to claim 3, wherein the thickness of the bearing steel ring is 10-20 mm, the width of the bearing steel ring is 200-400 m, the bearing steel ring is a tension annular connecting piece which is formed by connecting a plurality of arc-shaped components in pairs through arc-shaped connecting plates and has two open ends, the two open ends are connected through fasteners, and at least one of the arc-shaped connecting plates is provided with an elongated fastening hole.
5. The bamboo composite pipe rack capable of accommodating multiple types of pipelines according to claim 4, wherein the inner surface of the pipe rack pipe body is provided with a circumferential groove matched with the bearing steel ring, so that the bearing steel ring can be tensioned and embedded in the circumferential groove to be attached to the inner surface of the pipe body; two bottom columns are arranged below the horizontal supporting beam, and a reinforcing beam is arranged between each bottom column and the horizontal supporting beam.
6. The bamboo composite comprehensive pipe gallery capable of accommodating multiple types of pipelines according to claim 1, wherein the bamboo skin is a bamboo skin curtain formed by connecting a plurality of bamboo skin sheets through weaving lines, wherein the bamboo skin sheets are arranged in parallel at equal intervals in the width direction of the bamboo skin sheets, and the bamboo skin curtain comprises an axial bamboo skin curtain and a circumferential bamboo skin curtain, wherein the length direction of the axial bamboo skin curtain is consistent with the width direction of the bamboo skin sheets therein, and the length direction of the circumferential bamboo skin curtain is consistent with the length direction of the bamboo skin sheets therein; in addition, the tensile strength of the circumferential bamboo skin curtain is 1400N-1600N, and the tensile strength of the axial bamboo skin curtain is 180N-220N.
7. The bamboo composite pipe gallery capable of accommodating multiple types of pipelines according to claim 6, wherein the thickness of the inner liner is 4.5 mm-5.5 mm, an inner waterproof layer is further arranged on the inner liner, and when the pipe body is horizontally placed, the inner waterproof layer covers the surface of the inner liner with the height smaller than a preset height value.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610931332.0A CN108005109B (en) | 2016-10-31 | 2016-10-31 | Can hold compound utility tunnel of bamboo of polymorphic type pipeline |
| PCT/CN2016/110233 WO2018076497A1 (en) | 2016-10-31 | 2016-12-16 | Comprehensive bamboo composite pipe gallery capable of accommodating multiple types of pipes |
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| CN201610931332.0A CN108005109B (en) | 2016-10-31 | 2016-10-31 | Can hold compound utility tunnel of bamboo of polymorphic type pipeline |
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| CN108005109B true CN108005109B (en) | 2020-09-22 |
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| CN108755761B (en) * | 2018-08-01 | 2024-06-11 | 中冶长天国际工程有限责任公司 | Anti-seismic comprehensive pipe rack and installation method thereof |
| CN109252544B (en) * | 2018-09-30 | 2023-12-12 | 广西壮族自治区城乡规划设计院 | Four cabin utility tunnel systems |
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| CN109629597B (en) * | 2019-01-14 | 2024-04-05 | 重庆市设计院有限公司 | Utility tunnel system under roadway |
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| CN110318420B (en) * | 2019-06-28 | 2024-04-09 | 中国五冶集团有限公司 | Prefabricated assembled underground utility tunnel |
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| CN110701389B (en) * | 2019-09-25 | 2024-04-19 | 深圳市综合交通设计研究院有限公司 | Small-size utility tunnel device on bridge central authorities median |
| CN111173032B (en) * | 2020-02-18 | 2024-06-18 | 重庆设计集团有限公司 | Assembled grid energy dissipation device and drainage energy dissipation system suitable for municipal drainage gets into utility tunnel |
| CN112663644B (en) * | 2021-01-07 | 2022-10-21 | 徐州工业职业技术学院 | Piping lane infiltration water leakage drainage structures |
| CN113863975A (en) * | 2021-09-13 | 2021-12-31 | 中煤建工集团有限公司 | Underground pipe gallery construction is with system of sliding |
| CN114960742B (en) * | 2022-03-28 | 2024-05-14 | 中建五局土木工程有限公司 | New and old pipe gallery connection construction method |
| CN114780811A (en) * | 2022-04-22 | 2022-07-22 | 中煤科工集团重庆智慧城市科技研究院有限公司 | Hardware selection type intelligent recommendation system for ACU controller |
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| WO2018076497A1 (en) | 2018-05-03 |
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Effective date of registration: 20240620 Address after: 311122 No. 29-16, Jiaqi Road, Xianlin Street, Yuhang District, Hangzhou, Zhejiang Patentee after: Zhonglin Xinzhou Bamboo Winding Development Co.,Ltd. Country or region after: China Address before: 311115 No.6 Xiuyan Road, Fengdu village, Pingyao Town, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG XINZHOU BAMBOO-BASED COMPOSITES TECHNOLOGY Co.,Ltd. Country or region before: China Patentee before: Ye Ling |