CN108547316B - Double-layer corrugated steel structure for underground comprehensive pipe gallery - Google Patents
Double-layer corrugated steel structure for underground comprehensive pipe gallery Download PDFInfo
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- CN108547316B CN108547316B CN201810367262.XA CN201810367262A CN108547316B CN 108547316 B CN108547316 B CN 108547316B CN 201810367262 A CN201810367262 A CN 201810367262A CN 108547316 B CN108547316 B CN 108547316B
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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
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a double-layer corrugated steel structure for an underground comprehensive pipe gallery, relates to an underground comprehensive pipe gallery structure and aims to solve the problems that the existing concrete structure is poor in uneven settlement resistance and impermeability, joints of a prefabricated pipe gallery are prone to fracture and water leakage, and the stable structure of the corrugated steel pipe gallery is insufficient in bearing capacity. The invention relates to a double-layer corrugated steel structure for an underground comprehensive pipe gallery, which comprises a reinforced concrete ring, 2 arch body corrugated steel plates and a bottom plate, wherein the reinforced concrete ring is arranged between the 2 arch body corrugated steel plates to form an arch body, the left side and the right side of the bottom plate in the transverse direction are respectively provided with a cup opening groove, the outer surfaces of arch feet of an outer lining arch body corrugated steel plate and an inner lining arch body corrugated steel plate are provided with studs, the arch feet of the arch body are inserted into the cup opening grooves, and arch foot concrete is poured behind the cup opening grooves. The double-layer corrugated steel structure of the underground comprehensive pipe gallery has the advantages of higher construction speed, impermeability of the structure, resistance to uneven settlement of the foundation and great improvement on the connection convenience of the prefabricated section.
Description
Technical Field
The invention relates to an underground comprehensive pipe gallery structure.
Background
Along with the increase of the construction process, population and development intensity of modern cities in China, the city has higher and higher demands on municipal pipelines and larger quantities, and the traditional municipal pipeline laying method cannot meet the demands. The practical experience of many years abroad proves that the construction of the urban underground comprehensive pipe gallery can solve the problems of repeated road surface excavation, dense overhead wire network, frequent pipeline accidents and the like, is favorable for ensuring the urban safety, perfecting the urban function, beautifying the urban landscape, promoting the intensive, efficient and transformation development of the city, improving the comprehensive urban bearing capacity and the urbanization development quality, increasing the effective investment of public products and pulling the social capital.
At present, the underground comprehensive pipe gallery is mainly of a reinforced concrete structure, but when cast-in-place concrete construction is adopted, the construction operation speed is low, the traffic influence on a main road is large, and great inconvenience is brought to the life of residents. When the concrete structure adopts the prefabrication construction, although the construction progress can be accelerated and the construction quality can be ensured, the connecting joint is always a problem, and when the rigid connection is adopted, the concrete structure is easy to break when large uneven settlement occurs; when flexible connection is adopted, the water leakage phenomenon at the joint is still obvious, and when the high-efficiency sealing flexible joint is adopted, the precision requirement of the joint is high, and the processing is very complex.
Due to the problems, the application of the corrugated steel pipe comprehensive pipe gallery in China is gradually increased. The corrugated steel pipe utility tunnel not only can avoid wet operation for the construction progress, moreover because the existence of pipe shaft ripple, with the soil body synergism on every side, make its atress more reasonable, the resistance to the uneven settlement performance of ground is also better. In terms of corrosion prevention, foreign related researches show that the corrosion prevention performance of the corrugated steel plate is good after special treatment. However, the corrugated steel pipe is relatively flexible, and is easy to generate a destabilization phenomenon when the span is too large, and the cross section form is relatively fixed, generally circular or elliptical, and the circular cross section is relatively poor in utilization rate of space, and in addition, the corrugated steel pipe is still easy to leak at the bolt hole position and the cross section junction.
Disclosure of Invention
The invention provides a double-layer corrugated steel structure for an underground comprehensive pipe gallery, aiming at solving the problems that the existing concrete structure has uneven settlement resistance and poor impermeability, the joint of a prefabricated pipe gallery is easy to break and leak, and the stable bearing capacity of the corrugated steel pipe gallery structure is insufficient.
The invention relates to a double-layer corrugated steel structure for an underground comprehensive pipe gallery, which comprises a reinforced concrete ring, 2 arch body corrugated steel plates and a bottom plate, wherein the reinforced concrete ring is arranged between an outer lining arch body corrugated steel plate and an inner lining arch body corrugated steel plate to form an arch body, cup mouth grooves are respectively arranged on the left side and the right side of the transverse direction of the bottom plate, studs are arranged on the outer surfaces of arch feet of the outer lining arch body corrugated steel plate and the inner lining arch body corrugated steel plate, the arch feet of the arch body are inserted into the cup mouth grooves, arch foot concrete is poured in the cup mouth grooves, and peripheral soil is wrapped on the peripheries of the arch body and the bottom plate to form the double-layer corrugated steel structure for the underground comprehensive pipe gallery.
The invention provides a double-layer corrugated steel structure form of a comprehensive pipe gallery, which greatly improves the foundation settlement resistance and the impermeability of the structure due to the existence of corrugated plates; in addition, during pouring construction, the corrugated steel plate plays a role of a template, so that the construction progress is accelerated; the segment connection of the structural form can adopt flexible connection, the connection is convenient, and the leakage-proof effect of the connecting segment is excellent; in addition, the stability of the corrugated steel is also ensured due to the existence of the external concrete. This kind of structural style can extensively be applicable to in the utility tunnel construction, and the specially adapted pipe gallery lies in below the ground water level, the foundation condition is relatively poor, bears in the higher or great environment of use span of load level.
The double-layer corrugated steel structure for the underground comprehensive pipe gallery can adopt a prefabricated construction mode, and for the prefabricated construction, the bottom plate and the arch body can be integrally prefabricated, and the bottom plate can be cast in situ and the arch body can be prefabricated.
Compared with a concrete comprehensive pipe gallery, the double-layer corrugated steel structure has the advantages that the construction speed is higher, the impermeability of the structure, the resistance to uneven settlement of a foundation and the connection convenience of the prefabricated section are greatly improved; compared with a corrugated steel comprehensive pipe gallery, the bearing capacity of the structure is higher, the possibility of local buckling is greatly reduced, the cross section forms are more diversified, and the utilization rate of the space of the cross section is higher if the cross section is a box-shaped cross section.
The double-layer corrugated steel structure for the underground comprehensive pipe gallery has the following beneficial effects:
1. in the form of the double-layer corrugated steel structure, due to the existence of the corrugated steel plates, the impermeability and the resistance to uneven settlement of a foundation of the structure are obviously improved, the structure is not easy to crack and leak, and the outer lining arch body corrugated steel plates are occluded with the surrounding soil body, so that the stress performance of the structure is more excellent;
2. in the form of the double-layer corrugated steel structure, as the two layers of corrugated steel plates are used as templates in cast-in-place construction, the construction progress is accelerated, and the usage amount of the templates is reduced;
3. the double-layer corrugated steel structure has the advantages that the construction speed is high for the prefabrication construction, the connection is convenient, and the anti-permeability performance and the anti-differential settlement performance of the structure at the joint are very excellent;
4. in the form of the double-layer corrugated steel structure, due to the existence of concrete between two layers of corrugated steel plates, the bearing capacity and the stability of the whole structure are far higher than those of the corrugated steel structure, and the double-layer corrugated steel structure can be suitable for a large-space pipe gallery structure;
5. due to the existence of concrete between two layers of corrugated steel plates in the form of the double-layer corrugated steel structure, when the soil body is backfilled at the later stage, strict requirements are not required to be met when the corrugated steel is backfilled, and the construction limitation is reduced.
The double-layer corrugated steel structure form for the underground comprehensive pipe gallery is applied to the construction of the comprehensive pipe gallery.
Drawings
FIG. 1 is a schematic view of a double-deck corrugated steel structure for an underground utility tunnel;
fig. 2 is a structural schematic diagram of longitudinal connection of two sections of double-layer corrugated steel structures for an underground comprehensive pipe gallery in the eight sections of the specific embodiment.
Detailed Description
The first embodiment is as follows: the double-layer corrugated steel structure for the underground comprehensive pipe gallery comprises a reinforced concrete ring 1, 2 arch body corrugated steel plates and a bottom plate 4, wherein the reinforced concrete ring 1 is arranged between an outer lining arch body corrugated steel plate 2-1 and an inner lining arch body corrugated steel plate 2-2 to form an arch body, cup opening grooves 4-2 are respectively formed in the left side and the right side of the bottom plate 4 in the transverse direction, studs 2-3 are arranged on the outer surfaces of arch feet of the outer lining arch body corrugated steel plate 2-1 and the inner lining arch body corrugated steel plate 2-2, the arch feet of the arch body are inserted into the cup opening grooves 4-2, arch foot concrete 5 is poured behind the cup opening grooves 4-2, and a surrounding soil body 6 is wrapped on the peripheries of the arch body and the bottom plate 4 to form the double-layer corrugated steel structure for the underground comprehensive pipe gallery.
The prefabricated segment connection of the double-layer corrugated steel structure for the underground comprehensive pipe gallery comprises the prefabrication of a bottom plate segment and the prefabrication of an arch ring segment. The bottom plate construction, the bottom plate can be reinforced concrete bottom plate, also can lay the steel sheet in the bottom plate lower part, and the shear bolt nail of welding on the steel sheet increases the bonding of steel sheet and concrete.
When the arch body is connected with the bottom plate, the bottom plate is provided with a reserved groove and is subjected to scabbling treatment. And then, connecting the whole corrugated steel plate pipe body, wherein the corrugated steel plate needs to meet the requirements of corrugated steel pipes (plates) for highway culvert passages (JTT 791-2010). And after the corrugated steel plates are connected, installing a concrete template, and then pouring concrete.
The second embodiment is as follows: the present embodiment is different from the present embodiment in that flanges 4-1 are provided on the left and right sides of the bottom plate 4 in the lateral direction, and the arch body is located between the left and right flanges 4-1.
Fig. 2 shows a schematic structural view of the flange of the present embodiment.
The third concrete implementation mode: the difference between the first embodiment and the second embodiment is that the bottom plate 4 is a reinforced concrete bottom plate.
The fourth concrete implementation mode: the difference between this embodiment and the first to third embodiments is that the concrete in the reinforced concrete ring 1 is impervious concrete.
The fifth concrete implementation mode: the difference between the present embodiment and one of the first to fourth embodiments is that shear keys 3 are welded to the opposing faces of the outer-lining and inner-lining arch-body corrugated steel plates 2-1 and 2-2, respectively.
The arch corrugated steel plate of the embodiment is subjected to anticorrosion and fireproof treatment as required.
The sixth specific implementation mode: the present embodiment is different from one of the first to fifth embodiments in that flat steel plates or corrugated steel plates are respectively provided on the upper and lower plate surfaces of the bottom plate 4.
In the embodiment, the permeability resistance and the sedimentation resistance of the bottom plate are ensured by using the flat steel plate or the corrugated steel, and the effect of resisting uneven sedimentation is achieved.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is that the arch section is a circular section, a pear-shaped section, a box-shaped section, a semicircular section, or a semi-elliptical section.
The specific implementation mode is eight: this embodiment is when the double-deck corrugated steel structure that multisection section is used for utility tunnel carries out longitudinal connection, and every section of double-deck corrugated steel structure that is used for utility tunnel has arc end plate 7 in the welding on the connection terminal surface of encircleing body thickness direction, adopts the arc end plate 7 of two adjacent sections of first bolt 8 connection.
The curvature of the arc-shaped steel plates in the two sections of the embodiment is the same.
The specific implementation method nine: the eighth embodiment is different from the eighth embodiment in that a first waterproof layer 9 is sandwiched between the arc-shaped end plates 7 of two adjacent segments.
The waterproof layer in this embodiment is made of polystyrene foam board, water-swellable rubber water stop, polysulfide sealant, waterproof roll or polymer waterproof cement mortar.
The detailed implementation mode is ten: the eighth difference between the embodiment and the eighth embodiment is that the double-layer corrugated steel structure of the underground comprehensive pipe gallery with two adjacent sections is provided with lining corrugated steel plates 10 at the longitudinal joint, the lining corrugated steel plates 10 are fixed on the lining arch body corrugated steel plates 2-2 through second bolts 12, and the lining corrugated steel plates 10 are located between the two sections which are longitudinally connected.
In the embodiment, bolt holes 13 are pre-buried in the reinforced concrete ring, second bolts 12 penetrate through the bolt holes to connect the lining arch body corrugated steel plate 2-2 with the lining corrugated steel plate 10, and concrete is poured in the bolt holes.
In the connection mode of the two sections, the two arc-shaped end plates 7 are arranged, so that the concrete section is restrained to a certain extent, the performance of the concrete is more excellent, and the bearing capacity of the section is improved; meanwhile, the method has a local reinforcing effect on the end part of the corrugated steel plate, so that the possibility of local buckling of the end part of the corrugated steel plate is reduced; finally, the end plate can play a role of a template when pouring.
The concrete implementation mode eleven: the present embodiment is quite different from the embodiment in that a second waterproof layer 11 is interposed between the inner liner arch corrugated steel plate 2-2 and the inner liner corrugated steel plate 10.
Example (b): the double-layer corrugated steel structure for the underground comprehensive pipe gallery comprises a reinforced concrete ring 1, 2 arch body corrugated steel plates and a bottom plate 4, wherein the reinforced concrete ring 1 is arranged between an outer lining arch body corrugated steel plate 2-1 and an inner lining arch body corrugated steel plate 2-2 to form an arch body, cup mouth grooves 4-2 are respectively arranged on the left side and the right side of the bottom plate 4 in the transverse direction, stud nails 2-3 are arranged on the outer surfaces of arch feet of the outer lining arch body corrugated steel plate 2-1 and the inner lining arch body corrugated steel plate 2-2, the arch feet of the arch body are inserted into the cup mouth grooves 4-2, arch foot concrete 5 is poured behind the cup mouth grooves 4-2, and a peripheral soil body 6 is wrapped on the peripheries of the arch body and the bottom plate 4 to form the double-layer corrugated steel structure for the underground comprehensive pipe gallery;
when multiple sections are used for longitudinally connecting the double-layer corrugated steel structures of the underground comprehensive pipe gallery, the arc-shaped end plates 7 are welded on the connecting end face of each section of the double-layer corrugated steel structure of the underground comprehensive pipe gallery in the thickness direction of the arch body, and the arc-shaped end plates 7 of two adjacent sections are connected by adopting first bolts 8;
the double-layer corrugated steel structure with the two adjacent sections for the underground comprehensive pipe gallery is provided with lining corrugated steel plates 10 at the longitudinal joint, the lining corrugated steel plates 10 are fixed on the inner plate surface of the lining arch body corrugated steel plates 2-2 through second bolts 12, and the lining corrugated steel plates 10 are located between the two sections which are longitudinally connected.
In the form of the double-layer corrugated steel structure, a pouring template is not required due to the existence of the double-layer corrugated steel plate, and the construction progress is faster than that of only a single-layer corrugated steel structure; secondly, the section of the structure is more expanded, and the bending resistance bearing capacity is higher. The double-layer corrugated steel wraps the internal concrete, so that crack development of the internal concrete is limited, and the internal concrete has a constraint effect on the concrete to a certain extent, and the mechanical property of the concrete material is improved; finally, the structure is stressed by 3 layers, and the influence of local corrosion on the whole bearing capacity of the structure is smaller.
Compared with the existing cast-in-place reinforced concrete structure form, the double-layer corrugated steel structure for the underground comprehensive pipe gallery has the advantage that the overall construction speed is higher than that of the cast-in-place reinforced concrete structure form. The structural bearing capacity is more developed due to the existence of corrugated steel, and the bearing capacity is improved by nearly 25 percent.
Claims (7)
1. The double-layer corrugated steel structure for the underground comprehensive pipe gallery is characterized by comprising a reinforced concrete ring (1), 2 arch corrugated steel plates and a bottom plate (4), wherein the reinforced concrete ring (1) is arranged between the outer lining arch body corrugated steel plate (2-1) and the inner lining arch body corrugated steel plate (2-2) to form an arch body, the left side and the right side of the transverse direction of the bottom plate (4) are respectively provided with a cup opening groove (4-2), the outer surfaces of the arch springing of the outer lining arch body corrugated steel plate (2-1) and the inner lining arch body corrugated steel plate (2-2) are provided with studs (2-3), the arch springing of the arch body is inserted into the cup opening groove (4-2), arch foot concrete (5) is poured in the cup opening groove (4-2) later, and a surrounding soil body (6) is wrapped on the peripheries of the arch body and the bottom plate (4) to form a double-layer corrugated steel structure for the underground comprehensive pipe gallery; shear keys (3) are respectively welded on the opposite plate surfaces of the outer lining arch body corrugated steel plate (2-1) and the inner lining arch body corrugated steel plate (2-2);
when multiple sections are used for longitudinally connecting the double-layer corrugated steel structures of the underground comprehensive pipe gallery, the arc-shaped end plates (7) are welded on the connecting end surfaces of the double-layer corrugated steel structures of each section in the thickness direction of the arch body, and the arc-shaped end plates (7) of two adjacent sections are connected by adopting first bolts (8); the double-layer corrugated steel structure with the two adjacent sections for the underground comprehensive pipe gallery is provided with lining corrugated steel plates (10) at the longitudinal joint, the lining corrugated steel plates (10) are fixed on the lining arch body corrugated steel plates (2-2) through second bolts (12), and the lining corrugated steel plates (10) are located between the two sections which are longitudinally connected.
2. The double-deck corrugated steel structure for an underground utility tunnel according to claim 1, wherein flanges (4-1) are provided on the left and right sides in the lateral direction of the floor (4), and the arch body is located between the left and right flanges (4-1).
3. The double-deck corrugated steel structure for utility tunnel according to claim 1, characterized in that said floor (4) is a reinforced concrete floor.
4. The double-deck corrugated steel structure for utility tunnel according to claim 1, characterized in that the upper and lower plate surfaces of the bottom plate (4) are respectively provided with flat steel plates or corrugated steel.
5. The double-deck corrugated steel structure for utility tunnel according to claim 1, characterized in that said arch cross-section is a circular cross-section, a pear-shaped cross-section, a box-shaped cross-section, a semi-circular cross-section or a semi-elliptical cross-section.
6. The double-layer corrugated steel structure for the utility tunnel according to claim 1, characterized in that a first waterproof layer (9) is sandwiched between the arc-shaped end plates (7) of two adjacent sections.
7. The double-deck corrugated steel structure for an underground utility tunnel according to claim 1, characterized in that a second waterproof layer (11) is interposed between the lining arch body corrugated steel plate (2-2) and the lining corrugated steel plate (10).
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| CN201810367262.XA CN108547316B (en) | 2018-04-23 | 2018-04-23 | Double-layer corrugated steel structure for underground comprehensive pipe gallery |
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| CN108547316B true CN108547316B (en) | 2020-12-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109653249B (en) * | 2018-11-07 | 2020-12-29 | 浙江大学 | Corrugated steel plate and weather-resistant steel concrete composite suspension tunnel pipe body structure |
| CN109403377A (en) * | 2018-12-10 | 2019-03-01 | 重庆大学 | A kind of assembled pipe gallery based on double-deck corrugated sheet steel-concrete combined board |
| CN115288194B (en) * | 2022-09-15 | 2024-05-28 | 中铁第四勘察设计院集团有限公司 | Assembled overlapping structure and process for passageway of underground structure passageway |
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| CN203924114U (en) * | 2014-06-24 | 2014-11-05 | 刘小沙 | Prefabricated pipe gallery |
| CN204898721U (en) * | 2015-08-31 | 2015-12-23 | 三峡大学 | Steel construction city utility tunnel |
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| CN205716040U (en) * | 2016-04-22 | 2016-11-23 | 孙成业 | A kind of assembled corrugated steel composite steel-concrete piping lane |
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2018
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| US4697955A (en) * | 1982-07-30 | 1987-10-06 | Le Clerco Pierre A L M G | Method of constructing reinforced concrete works such as underground galleries, road tunnels, et cetera; pre-fabricated contrete elements for constructing such works |
| CN103114520A (en) * | 2013-03-13 | 2013-05-22 | 湖南大学 | Lattice-type large-span soil-filling composite corrugated steel arch bridge structure |
| CN203924114U (en) * | 2014-06-24 | 2014-11-05 | 刘小沙 | Prefabricated pipe gallery |
| CN204898721U (en) * | 2015-08-31 | 2015-12-23 | 三峡大学 | Steel construction city utility tunnel |
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