CN205576969U - Modular box pipeline - Google Patents

Abstract

The utility model discloses a modular box pipeline, include to be assembled along circumference by the unit slab to form the box tube coupling, this box tube coupling is assembled along the axial and is formed the box pipeline, wherein, this unit slab comprises panel and the hollow tubular product that lies in its both ends, and this tubular product be box tube coupling axial concatenation end, simultaneously in assembling formation box pipeline, and the skeleton texture of adjacent tubular product interconnect formation box pipeline. Add tubular product constitution rectangular frame in this pipeline and as the roof beam structure, undertake main load, improve pipeline bearing capacity, but concrete -filled in tubular product, the common atress principle of application pipe clay improves bearing capacity, and under the same depth of fill, this structure wallboard is thinner, the panel moment of inertia of cross -section is high, and bearing capacity improves, the great attenuate of its wall thickness, and reduce cost, and when the intensity of panel was high, the interval between the tubular product can increase, has reduced the use of material, has also reduced concrete quantity and pipeline weight, and reduce cost has improved the construction progress.

Description

Combination type box pipeline

Technical field

The utility model discloses a kind of pipeline, particularly relate to a kind of combination type box pipeline.

Background technology

At present, Urban Underground pipe gallery major part is made up of armored concrete, and its version has on-the-spot one-piece casting And precast assembly, cross sectional shape has rectangle and circle, but reinforced concrete structure cost is the highest, and seam is many, the most every 2～5 One seam of rice, the sealing of seam is a difficult problem, and construction technical requirement is high, and long construction period holds the most very much Easy to crack, leak, maintenance cost is high, and whole engineering uses cement in a large number, is unfavorable for environmental protection.Wherein rectangular configuration pipe Road, its both sides body of wall, except the vertical load on top to be born, still suffer from the transverse load of side soil layer, and top Plate directly bear dynamic loading and dead load, but because of only with common reinforced concrete technology, for resist torque and disturb Song, strengthens its bearing capacity, prevents unstability, and wall needs the thickest of setting, and expense is high.And circle reinforcing bar concrete pipe, There is duct bottom key groove to be difficult to backfill, and its plate is all deep camber radian plate, its headroom utilization rate is the lowest.

Applicant is devoted to steel construction and the research of steel-concrete fabricated structure, application and infrastructure project always. Patent applied for number is 2015106007884 " precast assembly steel reinforced concrete combined type steel pipes and preparation method thereof ", Patent No. " 201510598743.8 precast assembly combination type box pipeline and preparation method thereof " and Patent No. 201510600759.8 The utility model patent of " steel-concrete combined structure pipeline of band spiral reinforcing ring and preparation method thereof ", above-mentioned patent Middle pipeline section is all circular cross-section form, when being applied to Urban Underground pipe gallery with this kind of pipeline section form, deposits In following shortcoming 1., piping lane interior bottom portion be arc, be not flat, be not easy to the current of maintainer and maintenance of equipment, Need to build dedicated platform in piping lane interior bottom portion；2., piping lane both sides metope be also arc, be unfavorable for pipe support and pipeline Arrangement is arranged；3., for monoblock type circular cross-section pipeline, there is transport difficult, caliber is more than 3.5 meters and transfinites；④、 There is also transport for split blade type circular cross-section unfavorable, owing to its plate is arcuate structure, when lamination transports, lamination is more In high plate transportation, plate stress superposition is the most, easily causes the imponderable arc deforming of plate, transports time serious Assembly cannot be docked to scene, need to do over again；5., circular arc plate opposing straight plate, its circular arc degree, arc length etc. add industry control Difficulty processed is big, and processing cost is high；6., rectangular duct cross section can be different to adapt to by simply changing length-width ratio Floor height requirement；7., opposing circular cross section pipe, rectangular-section pipeline difficulty of construction is little.8., arc unit sheet bar is soft Property is bigger than straight unit sheet bar；9., above-mentioned utility model patent all apply pipeclay jointly by stress effect, this principle needs Pipeline realizes with surrounding soil cooperative transformation, but for Urban Underground pipe gallery, when the deformation of pipeline is excessive, may The internal pipe support of piping lane and the deformation of pipeline or destruction can be caused；10., according to firmly building ministerial standard " city integrated piping lane engineering skill Art specification " 2015 years standard-requireds, circular piping lane is low relative to its space availability ratio for box-shaped piping lane, circular piping lane only profit The headroom of rectangle is connect in using circular piping lane；Namely this reason, the height of circular piping lane will be than box-shaped piping lane Height, needs buried deeper, adds cutting depth and the quantities on basis.Patent applied for number is 201510960789.X " steel Urban Underground pipe gallery " its material is that simple steel material is made, and its bearing capacity is limited, it is impossible to be applied to Heavy caliber cross section and high roadbed.

It would therefore be highly desirable to solve above-mentioned technical barrier.

Utility model content

Utility model purpose: the purpose of this utility model is to provide that a kind of bearing capacity is strong, wall is thin, anti-seismic performance is good, The combination type box pipeline that anti-settling performance is good and weight capacity is high.

Technical scheme: the utility model discloses a kind of combination type box pipeline, including by unit sheet bar circumferentially assembled shape Becoming box tube coupling, this box tube coupling is assembled vertically forms box pipeline；Wherein, this unit sheet bar by sheet material and is positioned at it The tubing of the hollow at two ends forms, and this tubing is the axial splice ends of box tube coupling, simultaneously in assembly forms box pipeline, Adjacent tubing is interconnected to form the framing structure of box pipeline.

Wherein, the tubing being positioned on described box tube coupling end face or base plate sets at least one pipe along box tube coupling short transverse is folded Material；Or the tubing being positioned on described box tube coupling side sets at least one tubing along box tube coupling width is folded.

Further, fill concrete in described tubing.

Preferably, the outside of described sheet material and/or inner side have projection, described sheet material to be made up of metallic plate, this metallic plate self It is bent to form projection；Or metallic plate is bent to form convex shape, form hollow cavity with sheet material or tubing with this combination of protrusions Structure；Or be spliced by metallic plate and metal tube；Or by C-type steel, channel-section steel, I-steel, arc-shaped steel, angle steel or Corrugated plating fastens with metallic plate and forms the sheet material with hollow cavity structure.

Further, the cross section of described projection is single section form or is combined by multiple section form.

Particularly, described box tube coupling is made up of both sides unit sheet bar and upper and lower unit sheet bar, in wherein said unit sheet bar Sheet material be arc-like sheet or flat sheet.

Wherein, during described unit sheet bar circumferentially assembled formation box tube coupling, the contact end of adjacent cells plate has folding Limit, and the contact surface of adjacent folds is for splicing joint face.

Further, during described unit sheet bar circumferentially assembled formation box tube coupling, between adjacent cells plate by a pair even Fishplate bar connects, and wherein, the end of each unit sheet bar is equipped with a connecting plate, and each connecting plate is from the end of unit sheet bar Portion stretches out, and extension is as splicing joint face.

Preferably, when described box tube coupling splices vertically, the contact end tubing of adjacent cells plate is offered and axially connects Connect hole, and the contact surface of adjacent tubing is splicing joint face.

Further, when described box tube coupling splices vertically, the contact end tubing of adjacent cells plate is offered and axially connects Connect installation handle hole.

Wherein, when the sheet material on described unit sheet bar is polylith, between adjacent sheet metal, it is provided with tubing side by side, this tubing circumference Connect the framing structure forming box tube coupling.

Utility model principle: the first framing structure of this utility model tubing circumference connection formation box tube coupling is possible to prevent side To unstability, increase bulk strength；

Secondly in tubing, concrete perfusion uses concrete steel pipe principle, and the operation principle of concrete steel pipe is at hollow pipe Filling concrete in material, utilizes the superior bearing capacity of concrete and the encapsulation to concrete of steel pipe, makes steel pipe Bearing capacity strengthens greatly；

Furthermore the protruding sheet material of band have employed big the moment of inertia principle, big the moment of inertia principle is by being cross section by straight sheet metal forming Plate with bulge-structure so that its cross sectional moment of inertia is greatly improved, bending resistance, antitorque and resistance to deformation ability significantly carry Rising, then make plate bearing capacity compare straight plate and be greatly improved, its performance boost degree depends on shape and the chi of projection Very little；

Then, during the pipeline construction of combination type box, during as underground pipe gallery, the common Force principle of pipeclay, pipeclay are used Common Force principle is made by pipeline soil stone and pipe element cooperative bearing, the load being applied on pipeline is converted into The ring inward pressure of duct wall；

The sheet material of tubing, concrete and band bulge-structure be three are combined into one by this utility model, and gives full play to each Feature and advantage, overall structure undertakes different effects respectively.

Beneficial effect: compared with prior art, this utility model has the advantage that

(1) composition of the tubing in this combination type box pipeline rectangular frame is as roof beam structure, undertakes Main Load, and raising is held Loading capability；

(2) fill concrete in tubing, uses the common Force principle of pipeclay, improves its bearing capacity, phase further With under the depth of fill, then this structural wall board is thinner, saves material；

(3) the sheet material moment of inertia of cross-section of this combination type box pipeline is high, and bearing capacity improves, and its wall thickness can be significantly Thinning, reduce the cost of material, and when the intensity height of ripple sheet material, the spacing between tubing can strengthen, reduce The use of material, decreases concrete amount and pipeline weight, greatly reduces manufacturing cost, improve construct into Degree；

(4) structure of the combination type box pipeline of this combination type box pipeline improves inside compared with circular cross-section pipeline The utilization rate of headroom and current clear span and clear height, and in the feelings ensureing equal internal headroom compared with circular cross-section pipeline Under condition, the highly significant of pipeline reduces, such that it is able to reduce the foundation excavation degree of depth, reduces civilwork engineering quantity；

(5) the bottom flat face of this pipeline or little curvature cambered surface, need not pave and just can use, and its internal pipeline cloth Put more convenient, can be directly as remarkable or mistake vehicle passage, it is also the most difficult for solving most important during the backfill of circular cross-section pipeline Bottom wedged gap backfill construction and the problem of compactness；

(6) this pipeline is semi-compliant structure, and anti-seismic performance is good, and anti-settling performance is good, absorbable micro-deformation, and The most easy to crack；And special connecting elements between adjacent cells plate, can be used, be conducive to improving sealing property and convenient peace Dress；

(7) this pipeline is burst assembled structure, and speed of application is fast, the construction period is short, single-unit pipeline can up to 15～ 25 meters of (as long as traffic condition is permitted, can be longer) pipeline joint-seams are few, it is easy to seal.

Accompanying drawing explanation

Fig. 1 (a)-1 (b) is the cross sectional representation that this utility model first kind is protruding；

Fig. 2 (a)-2 (i) is the cross sectional representation that this utility model Equations of The Second Kind is protruding；

Fig. 3 (a)-3 (b) is the cross sectional representation that this utility model the 3rd class is protruding；

Fig. 4 (a)-4 (c) is the cross sectional representation that this utility model the 4th class is protruding；

Fig. 5 (a) is the plate construction schematic diagram that this utility model offers circumference connecting hole；

Fig. 5 (b) is the sheet end surface schematic diagram that this utility model offers circumference connecting hole；

Fig. 5 (c) is the cross sectional representation of the first circumference splicing of this utility model unit sheet bar；

Fig. 5 (d) is the cross sectional representation of this utility model unit sheet bar the second circumference splicing；

Fig. 6 (a) is the structural representation of the unit sheet bar of this utility model band connecting plate；

Fig. 6 (b) is the cross sectional representation during unit sheet bar circumference splicing of this utility model band connecting plate；

Fig. 7 is the structural representation of this utility model tubing；

Fig. 8 (a) is this utility model plate construction schematic diagram without circumference connecting hole；

Fig. 8 (b) is this utility model sheet end surface schematic diagram without circumference connecting hole；

Fig. 9 (a) is the plate construction schematic diagram of this utility model band radian；

Fig. 9 (b) is the sheet end surface schematic diagram of this utility model band radian；

Figure 10 is this utility model structural representation without the unit sheet bar of connecting plate；

Figure 11 is the structural representation of this utility model box tube coupling；

Figure 12 is the first structural representation of this utility model combination type box pipeline；

Figure 13 is the first schematic cross-section of this utility model combination type box pipeline；

Figure 14 is structural representation during this utility model concrete perfusion；

Figure 15 is the second schematic cross-section of this utility model combination type box pipeline；

Figure 16 is the third schematic cross-section of this utility model combination type box pipeline.

Detailed description of the invention

Below in conjunction with the accompanying drawings the technical solution of the utility model is described further.

A kind of combination type box pipeline 100 disclosed in this utility model, is formed including by unit sheet bar 101 is circumferentially assembled Box tube coupling 102, this box tube coupling 102 is made up of both sides unit sheet bar and upper and lower unit sheet bar, in described unit sheet bar Sheet material be flat, as shown in figure 11.Wherein, the sheet material in described unit sheet bar is arc-like sheet or flat sheet, As shown in figure 15.Wherein arc-like sheet sheet material makes higher, the anti-vertical unstability ability of the torsional rigidity of unit sheet bar higher, Weldquality can be improved simultaneously to a certain extent, reduce stress and concentrate.Instantly when the sheet material of unit sheet bar is flat, Need not pave and just can use, and its internal pipeline is arranged more convenient, can be directly as remarkable or mistake vehicle passage.

Box tube coupling as shown in figure 11 is rectangle, and meanwhile, single-unit pipeline can be up to 15～25 meters, as long as transporting bar Part is permitted, length can be longer, and the most whole pipeline joint-seam reduces, better tightness；The box tube coupling 102 that will obtain Assembled formation combination type box pipeline 100 vertically；Wherein, this unit sheet bar 101 by sheet material 104 and is positioned at its two ends The tubing 103 of hollow form, and this tubing 103 is the axial splice ends of box tube coupling 102, forms case in assembly simultaneously In type pipeline 100, adjacent tubing 103 is interconnected to form the framing structure of box pipeline 100.Wherein, described in being positioned at Tubing 103 on box tube coupling 102 end face or base plate sets at least one tubing 103 along box tube coupling 102 short transverse is folded. It is positioned at the tubing 103 on described box tube coupling 102 side also to fold along box tube coupling 102 width and set at least one simultaneously Individual tubing 103.Wherein tubing 103 the most end to end formation rectangular frame, blocks this tube opening, and at tubing Fill concrete 106 in 103.The outside of this sheet material 104 and/or inner side have protruding 105.This sheet material 104 at least one Block, in order to increase the length of unit sheet bar 101, it is possible to be spliced by multi-sheets, and between adjacent sheet metal 104 also Row is provided with tubing 103.Fill concrete in tubing, uses the common Force principle of pipeclay, improves its carrying energy further Power, under the identical depth of fill, then this structural wall board is thinner, saves material.Tubing composition rectangular frame in this utility model As framing structure, undertake Main Load, improve bearing capacity；This pipeline is box-structure, and has projection, therefore Pipeline has certain vertical bearing capacity.The sheet material moment of inertia of cross-section of this combination type box pipeline is high, and bearing capacity carries Height, its wall thickness can be the most thinning, reduces the cost of material, and when the intensity height of ripple sheet material, between tubing Spacing can strengthen, and decreases the use of material, decreases concrete amount and pipeline weight, greatly reduces manufacture Cost, improves construction speed.

The bottom of this utility model combination type box pipeline is flat face or little curvature cambered surface, it is not necessary to horizontal stand of mating formation Directly as remarkable or car excessively passage, and it is prone to build pipeline foundation, most importantly it solves pipeline backfill Time bottom, the backfill of wedged gap is constructed and a difficult problem for compactness.

Above-mentioned protruding 105 can individually be located on sheet material 104, as shown in Fig. 1 (a), 1 (b).Above-mentioned sheet material 104 by Metallic plate 107 is constituted, and its protrusions 105 can be formed by this metallic plate 107 bent upon itself, the shape of cross section of bending Can be that grooved, arc, semicircle, wave are linear, trapezoidal etc., the cross-sectional perimeter of this projection 105 has opening, As shown in Fig. 2 (a)～2 (g)；Wherein unit sheet bar is made up of metallic plate 107, and forming protruding 105 can be cross section week The hollow cavity structure of limit Guan Bi, hollow cavity structure can be formed by this metallic plate 107 bent upon itself, bending transversal Face shape can be rectangle, circle etc., and is welded in the gap formed between hollow cavity structure with metallic plate 107, as Shown in Fig. 2 (h), 2 (i).Protruding 105 shapes, the described cross section of protruding 105 can also be bent to form by metallic plate 107 Combine for single section form or by multiple section form.Be the combination of multiple section form when the cross section of protruding 105 and Cheng Shi, can be combined separately by half square-section and semi-circular cross-section.Can use sheet material or tubing and this projection 105 simultaneously Combination formed hollow cavity structure, as shown in Fig. 3 (a), 3 (b), wherein, the cavity geometry being bent to form can be grooved, Arc, semicircle etc., sheet material used can be straight plate, channel-section steel, C-type steel, arc-shaped plate etc..

Sheet material 104 in this utility model can also be spliced, such as Fig. 4 (a)-4 (c) by metallic plate 107 and metal tube 108 Shown in；Or fastened by C-type steel, channel-section steel, I-steel, arc-shaped steel, angle steel or corrugated plating and metallic plate 107 and form band There is the sheet material 104 of hollow cavity structure.Above straight sheet material is bent to form with shapes such as arc, ripple type, grooveds The sheet material of shape can increase the vertical bearing capacity of unit sheet bar.

In this utility model during unit sheet bar 101 assembled formation box tube coupling 102, the contact jaw of adjacent cells plate 101 Portion has flanging 109, and the contact surface of adjacent folds 109 is splicing joint face, and described flanging can be to pipeline outside To turnover, can also turn down to insides of pipes direction, splicing joint face be offered circumference connecting hole 112, uses bolt Connect, as shown in Fig. 5 (a)-5 (d).

During said units plate 101 assembled formation box tube coupling 102, by a pair connection between adjacent cells plate 101 Plate 110 connects, as shown in Fig. 6 (a), 6 (b).Wherein, the end of each unit sheet bar 101 is equipped with a connecting plate 110, and each connecting plate 110 stretches out from the end of unit sheet bar 101, extension is as splicing joint face.Example As the extension of a pair connecting plate 110 can be offered circumference connecting hole 112, with bolts, wherein, Fig. 6 (b) Shown splicing joint face is horizontal direction, is conducive to boring, it is possible to use at an angle to the horizontal direction remaining to spell Junction in succession, so can improve tube coupling rigidity in construction and intensity.Utilize the above-mentioned connecting plate can be with levelling two side units The end position of plate, is conducive to installing and sealing；Connecting plate on base unit plate facilitates both sides unit sheet bar Centering, serves the effect guiding draw-in groove；Outside combination type box pipeline, bolt connects, convenient installation；Adjacent cells plate While sheet contact surface seals, add again the sealing of extension, dual-seal, improve sealing property.Certainly, Oblique angle can also be cut in the contact end of adjacent cells plate, such as 45 degree, then welding etc..

When described box tube coupling 102 splices vertically, axial connecting hole is offered in the contact end of adjacent cells plate 101 111, and the contact surface of adjacent tubing is for splicing joint face.Flange bolt such as can be used to connect, for the ease of bolt Attended operation is convenient, offers axially to connect at tubing and install handle hole 113 near axial connecting hole 111, and Tubing remains for the stream slurry hole 114 of concrete perfusion 106 in advance, as shown in Figure 7.It is of course also possible to by adjacent tubes The contact surface of material directly welds.

Combination type box pipeline of the present utility model can be single-cabin structure, as shown in Figure 8, it is possible to the most assembled formation has There are double bin or the composite pipeline of many bins.

Manufacture method: below the manufacture method of above-mentioned a kind of combination type box pipeline is elaborated.

As it is shown in figure 1, first according to required making pipeline specifications requirement, intercept required tubing 103, in tubing corresponding positions Put and offer axial connecting hole 111 and axially connect installation handle hole 113, and stream when offering tubing concrete perfusion is starched Hole 114, as shown in Figure 7.

According to required making pipeline specifications requirement, straight plate is rolled into the corrugated cardboard sheet in required cross section, then warp through former Shearing equipment cuts into the sheet material 104 of the band flanging 109 of Len req, as shown in Fig. 8 (a), 8 (b).At this flanging 109 On offer circumference connecting hole 112, as shown in Fig. 5 (a), 5 (b).

The manufacture method of the second combination type box pipeline is pipeline-like seemingly with the first combination type box above-mentioned, difference For: during the second structure, the sheet material 104 of the band flanging 109 after above-mentioned operation also needs to roll into through special equipment little Circle of curvature arcuation, as Fig. 9 (a), 9 (b), shown in 15.

By arranged in parallel for a number of tubing 103 gap obtained by above-mentioned steps, sheet material 104 is positioned over tubing 103 Between, and forming unit sheet bar 101 with tubing 103 vertical welding, it is ensured that tubing 103 and sheet material 104 are in same flat In face, as shown in Figure 10.The manufacture method of the third combination type box pipeline and the first combination type box pipeline above-mentioned Similar, difference is: during the third structure, outside the tubing of part or all of unit sheet bar 101 superposition one or Multiple tubing 103, and concrete perfusion in its tubing 103, as shown in figure 16；

Time with bolts, by the said units plate 101 circumferentially assembled box tube coupling 102 that formed, as shown in figure 11.

Time with bolts, above-mentioned box tube coupling 102 is spliced vertically, until being spliced to form the combination of Len req Formula box pipeline 100, and axially connect installation handle hole 113, such as Figure 12 institute with axially connecting installation operation port lid closure Show；

By filling concrete hole 115 toward concrete perfusion in tubing 103, until concrete is from overfolw hole 116, until Fill all tubing, then obtain combination type box pipeline, as shown in Figure 13, Figure 14.

Construction method: after design determines, requires to determine combination type box pipeline according to required making pipeline specifications Each several part parameter, including length and the thickness of tubing 103；The size of sheet material 104 and radian；The cross section shape of protruding 105 Shape and sectional dimension；The strength grade of fill concrete 106 and match ratio etc..This utility model combination type box pipe Road, when box tube coupling is installed vertically, installation personnel can be installed in insides of pipes, solves nothing outside piping lane A difficult problem for construction space, installation personnel is in insides of pipes, by the axial connecting hole 111 offered on unit sheet bar and axle To connecting, handle hole 113 is installed, the connection between box tube coupling and fastening, assembled formation combination type box pipe can be completed Road, assembly is installed axial connection with axially connection installation operation port lid closure after completing and is installed handle hole 114, as required Concrete perfusion, by filling concrete hole toward concrete perfusion in tubing 103, until concrete is from overfolw hole, until Fill all tubing, then complete the construction of combination type box pipeline, as shown in Figure 13, Figure 14.

Structure raising compared with circular cross-section pipeline of the combination type box pipeline of combination type box pipeline of the present utility model The utilization rate of internal headroom and current clear span and clear height, and ensureing that equal internal headroom is empty compared with the circular cross-section pipeline In the case of between, the highly significant of pipeline reduces, such that it is able to reduce the foundation excavation degree of depth, reduces civilwork engineering quantity；Its The bottom flat face of this pipeline secondary or little curvature cambered surface, need not pave and just can use, and its internal pipeline is arranged more convenient, Can be directly as remarkable or mistake vehicle passage, solving most important during the backfill of circular cross-section pipeline is also the most difficult bottom wedge shape The backfill construction of angle and the problem of compactness；Furthermore this pipeline is semi-compliant structure, anti-seismic performance is good, anti-settling performance Good, absorbable micro-deformation, and also the most easy to crack；And special connecting elements between adjacent cells plate, can be used, have It is beneficial to improve sealing property and convenient installation.This combination type box pipeline typically can operate with underground share ditch, municipal administration share Pipeline, underground collector pipe, supplying drainage, People's Bank of China or vehicle driving passage, the protection pipe of underground utilities.

Claims (10)

1. a combination type box pipeline, it is characterised in that: include being formed case by unit sheet bar (101) is circumferentially assembled Type tube coupling (102), this box tube coupling (102) is assembled vertically forms box pipeline (100)；Wherein, this cell board Sheet (101) is made up of the tubing (103) of sheet material (104) and the hollow being positioned at its two ends, and this tubing (103) is Box tube coupling (102) axially splice ends, simultaneously in assembly forms box pipeline (100), adjacent tubing (103) It is interconnected to form the framing structure of box pipeline (100).

Combination type box pipeline the most according to claim 1, it is characterised in that: it is positioned at described box tube coupling (102) Tubing (103) on end face or base plate sets at least one tubing (103) along box tube coupling (102) short transverse is folded；Or The tubing (103) that person is positioned on described box tube coupling (102) side along box tube coupling (102) width folded set to A few tubing (103).

Combination type box pipeline the most according to claim 1 and 2, it is characterised in that: in described tubing (103) Fill concrete (106).

Combination type box pipeline the most according to claim 1, it is characterised in that: the outside of described sheet material (104) And/or inner side has projection (105), described sheet material (104) to be made up of metallic plate (107), this metallic plate (107) is certainly Body is bent to form projection (105)；Or metallic plate (107) is bent to form projection (105) shape, with sheet material or tubing with This projection (105) combination forms hollow cavity structure；Or be spliced by metallic plate (107) and metal tube (108)； Or fastened by C-type steel, channel-section steel, I-steel, arc-shaped steel, angle steel or corrugated plating and metallic plate (107) formed with The sheet material (104) of hollow cavity structure.

Combination type box pipeline the most according to claim 4, it is characterised in that: the cross section of described projection (105) Combine for single section form or by multiple section form.

Combination type box pipeline the most according to claim 1, it is characterised in that: described box tube coupling (102) by Both sides unit sheet bar and upper and lower unit sheet bar are constituted, and wherein, the sheet material in described unit sheet bar is arc-like sheet or flat sheet.

Combination type box pipeline the most according to claim 1, it is characterised in that: described unit sheet bar (101) edge During circumference assembled formation box tube coupling (102), the contact end of adjacent cells plate (101) has flanging (109), And the contact surface of adjacent folds (109) is splicing joint face.

Combination type box pipeline the most according to claim 1, it is characterised in that: described unit sheet bar (101) edge During circumference assembled formation box tube coupling (102), by a pair connecting plate (110) between adjacent cells plate (101) Connecting, wherein, the end of each unit sheet bar (101) is equipped with a connecting plate (110), and each connecting plate (110) Stretching out from the end of unit sheet bar (101), extension is as splicing joint face.

Combination type box pipeline the most according to claim 1, it is characterised in that: described box tube coupling (102) edge When axially splicing, axial connecting hole (111) offered by the contact end tubing of adjacent cells plate (101) and axially connects Connect installation handle hole (113), and the contact surface of adjacent tubing is splicing joint face.

Combination type box pipeline the most according to claim 1, it is characterised in that: described unit sheet bar (101) On sheet material (104) when being polylith, be provided with tubing (103), this tubing (103) between adjacent sheet metal (104) side by side Circumference connects the framing structure forming box tube coupling (102).