CN111502756A - Corrugated plate tunnel primary support structure and tunnel - Google Patents
Corrugated plate tunnel primary support structure and tunnel Download PDFInfo
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- CN111502756A CN111502756A CN202010422368.2A CN202010422368A CN111502756A CN 111502756 A CN111502756 A CN 111502756A CN 202010422368 A CN202010422368 A CN 202010422368A CN 111502756 A CN111502756 A CN 111502756A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 238000009434 installation Methods 0.000 claims description 15
- 239000004567 concrete Substances 0.000 claims description 8
- 239000010426 asphalt Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 11
- 238000003466 welding Methods 0.000 description 14
- 230000008093 supporting effect Effects 0.000 description 12
- 239000002689 soil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 239000011378 shotcrete Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 239000007921 spray Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/20—Special cross- sections, e.g. corrugated
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/36—Linings or supports specially shaped for tunnels or galleries of irregular cross-section
- E21D11/365—Linings or supports specially shaped for tunnels or galleries of irregular cross-section for intersecting galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the field of tunnel construction, in particular to a corrugated plate tunnel primary support structure and a tunnel. The corrugated plate tunnel primary support structure comprises a channel support, a ingate combined ring beam and a blocked wall body; the channel support is cylindrical, and the ingate combined ring beam and the end-sealed wall body are respectively arranged at two ends of the channel support; the channel support comprises corrugated plates and a first annular beam, the corrugated plates are sequentially connected to form annular support belt rings, and adjacent support belt rings are connected through the first annular beam; the ingate combined ring beam comprises I-shaped steel and steel plates, the I-shaped steel is welded through a first steel plate and a second steel plate to form a combined beam, and a plurality of combined beams are sequentially connected through the second steel plate to form a frame beam-column system; the end-sealed wall body comprises a first section bar and a second section bar which are detachably connected, wherein the first section bars are arranged in parallel, the second section bars are arranged vertically, and the first section bars and the second section bars are arranged in a cross mode to form a wall body frame with a net structure. The invention simplifies the working procedure and the working time in the hole.
Description
Technical Field
The invention relates to the field of tunnel construction, in particular to a corrugated plate tunnel primary support structure and a tunnel.
Background
In order to seal the excavation surface as early as possible and effectively reduce the ground surface settlement when constructing the interval tunnel in the urban underground engineering, a primary supporting device with higher rigidity is erected as soon as possible after the soil body is excavated.
In the construction of subway intervals in the existing mine method, a spray anchor primary support construction method is adopted, namely, a spray layer, an anchor rod and surrounding rock form a circumferential bearing structure together, and the surrounding rock pressure is borne to form a primary support structure. The primary support device is a steel grating structure formed by welding a plurality of steel bars or a section steel grating structure formed by bending section steel. In the primary support device in the prior art, each ring of steel bar grating steel frame is formed by assembling a plurality of grating units in different shapes. Each truss of the steel bar grating is formed by welding main bars, reinforcing ribs and connecting angle steel (forming end plates), and the units are connected by high-strength bolts. In practical application, the steel bar grating after lofting is adjusted and connected according to the pre-designed unit positions, and a system anchor rod is driven into a soil body to fix the position of the grating when the grating is erected. When the system anchor rod is not arranged, the steel bar grating can also be positioned through the foot locking anchor rod. After the construction of the grating is completed, concrete is sprayed in layers as soon as possible to form a reinforced grating and sprayed concrete composite stress structure.
However, in the primary support device applied to the underground engineering in the prior art, because the whole construction process of the primary lining structure of the underground engineering comprises the processes of transportation, installation, connection and adjustment of the grid steel frame and two major links of material preparation of concrete, air compression equipment, transportation pipelines, injection assembly and the like, the required construction time is generally longer when the conventional primary support device is installed, and the 'quick closing' principle of tunnel excavation support is difficult to really realize.
Disclosure of Invention
The invention aims to provide a corrugated plate tunnel primary supporting structure and a tunnel, which are used for solving the technical problems.
The embodiment of the invention is realized by the following steps:
a corrugated plate tunnel primary support structure comprises a channel support, a ingate combined ring beam and a blocked wall body;
the channel support is cylindrical, the ingate combined ring beam is arranged at one end of the channel support and used for reinforcing the structure after the channel is holed, and the end-sealed wall body is arranged at one end of the channel support and used for plugging one end of the channel support;
the channel support comprises corrugated plates and a first annular beam, the corrugated plates are sequentially connected to form annular support belt rings, and the adjacent support belt rings are connected through the first annular beam;
the ingate combined ring beam comprises I-shaped steel and steel plates, the I-shaped steel is welded through a first steel plate and a second steel plate to form a combined beam, and a plurality of combined beams are sequentially connected through the second steel plate to form a frame beam-column system;
the end-sealed wall body comprises a first section bar and a second section bar which are detachably connected, the first section bar is arranged in parallel, the second section bar is arranged vertically, and the first section bar and the second section bar are arranged in a crossed mode to form a wall body frame with a net-shaped structure.
In a preferred embodiment of the invention, the second profile is arranged through the first profile;
or the second section bar is arranged on one side of the first section bar.
In a preferred embodiment of the present invention, the first section bar is a channel steel or an i-steel, and the second section bar is a steel bar.
In a preferred embodiment of the present invention, concrete is poured on the main frame of the wall body.
In a preferred embodiment of the invention, the surface of the corrugated sheet is sprayed with asphalt, hot-dip galvanized and/or hot-dip aluminized.
In a preferred embodiment of the invention, the corrugated plate is provided with a first mounting end plate and a second mounting end plate;
the first mounting end plate is disposed at a pair of opposite ends of the corrugated plate for mounting the corrugated plate on the first ring beam;
the second mounting end plate is disposed at another pair of opposite ends of the corrugated plates for connecting adjacent corrugated plates together.
In a preferred embodiment of the invention, the first ring beam is provided with a hand hole for facilitating the mounting of the first ring beam.
In a preferred embodiment of the present invention, waterproof rubber pads are disposed between the first mounting end plate and the first ring beam, and between the two second mounting end plates.
In a preferred embodiment of the invention, the first annular beam is coaxial with the support band.
A tunnel comprising a corrugated sheet tunnel primary support structure as claimed in any one of the preceding claims.
The embodiment of the invention has the beneficial effects that:
the radial rigidity of the structure is increased by using a primary supporting structure system with corrugated plates as main stress components; corrugated plate, first ring beam, first section bar and second section bar are the prefab, and its welding and trompil operation are all accomplished in the mill, more are favorable to product quality control, can reduce effectively that the hole that arouses because of component precision problem is adjusted for a long time, the difficult concatenation scheduling problem of bolt hole, and main atress component adopts full concatenation technology, has simplified operation process and activity duration in the hole, realizes "closing soon" principle in the true sense.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a corrugated plate tunnel primary support structure provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a partial enlarged view of FIG. 2 at B;
fig. 4 is a schematic structural view of a channel support of a corrugated plate tunnel primary support structure according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating the positions of hand holes on ring beams of a corrugated plate tunnel primary support structure provided by an embodiment of the invention;
fig. 6 is a schematic installation diagram of a linear waterproof rubber mat of a corrugated plate tunnel primary support structure provided by an embodiment of the invention;
fig. 7 is a schematic view illustrating installation of a ring-shaped waterproof rubber mat of a corrugated plate tunnel preliminary bracing structure according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a ingate combined ring beam of a corrugated plate tunnel primary support structure provided in an embodiment of the present invention;
fig. 9 is a schematic connection diagram of a composite beam of a corrugated plate tunnel preliminary bracing structure according to an embodiment of the present invention;
fig. 10 is a schematic view of a reinforcing structure of a ingate combined ring beam of a corrugated plate tunnel primary support structure according to an embodiment of the present invention;
FIG. 11 is a side view of FIG. 10;
fig. 12 is a schematic structural view of a steel support of a corrugated plate tunnel preliminary bracing structure according to an embodiment of the present invention;
fig. 13 is a schematic structural view of an adjusting device of a corrugated plate tunnel preliminary bracing structure according to an embodiment of the present invention;
fig. 14 is a reference diagram illustrating a use state of a steel support of a corrugated plate tunnel preliminary bracing structure according to an embodiment of the present invention.
In the figure:
1: supporting a channel; 2: sealing the end of the wall; 3: a first profile; 4: a second profile; 5: concrete; 6: a corrugated plate; 7: a first ring beam; 8: a first mounting end plate; 9: a second mounting end plate; 10: a second annular beam; 11: a first mounting hole; 12: a fixing hole; 13: a second mounting hole; 14: hand hole; 15: a waterproof rubber mat; 16: i-shaped steel; 17: a first steel plate; 18: a second steel plate; 19: connecting holes; 20: a third steel plate; 21: a rib plate; 22: a rubber pad; 23: an adjustment device; 24: longitudinal support; 25: transversely supporting; 26: core soil; 27: an upper plate; 28: fixing the rod; 29: fixing the sleeve; 30: a lower plate; 31: a lower adjustment lever; 32: an adjustment sleeve; 33: an upper adjusting rod; 34: rotating the hoop; 35: and (5) supporting steel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to fig. 1-5. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
A corrugated plate tunnel primary support structure comprises a channel support 1, a ingate combined ring beam and a blocked wall body 2; the channel support 1 is cylindrical, the ingate combined ring beam is arranged at one end of the channel support and used for strengthening the structure after the channel is holed, and the end-sealed wall body 2 is arranged at one end of the channel support 1 and used for plugging one end of the channel support 1; the channel support 1 comprises corrugated plates 6 and a first annular beam 7, the corrugated plates 6 are sequentially connected to form annular support belt rings, and adjacent support belt rings are connected through the first annular beam 7; the ingate combined ring beam comprises I-shaped steel and steel plates, the I-shaped steel is welded through a first steel plate 17 and a second steel plate 18 to form a combined beam, and a plurality of combined beams are sequentially connected through the second steel plate 18 to form a frame beam column system; the end-sealed wall body 2 comprises a first section bar 3 and a second section bar 4 which are detachably connected, a plurality of first section bars 3 are arranged in parallel, a plurality of second section bars 4 are arranged vertically, and the first section bars 3 and the second section bars 4 are arranged in a crossed manner to form a wall body frame with a net structure.
Specifically, in this embodiment, the end-sealing wall 2 and the channel support 1 are fixedly connected through a second annular beam 10, specifically, the second annular beams 10 are arranged side by side, the channel support 1 is fixedly connected with the second annular beam 10 through bolts, and the end-sealing wall 2 is fixedly connected with the inner wall of the second annular beam 10.
In this embodiment, corrugated plate 6, first ring beam 7, first section bar 3 and second section bar 4 are transported to the job site after being prefabricated and produced in the factory, and by means of riveting, bolted connection or welding, corrugated plate 6 and first ring beam 7 are spliced into channel support 1, first section bar 3 and second section bar 4 are spliced into latticed wall body main frame by means of riveting, bolted connection or welding, and end-sealed wall body 2 is formed by the wall body main frame.
Specifically, in the present embodiment, the material of the first ring beam 7 is steel, and more specifically, the first ring beam 7 is a steel pipe having a square cross section.
Specifically, the first section bar 3 is horizontally arranged, and the second section bar 4 is vertically arranged.
It should be noted that, in the present embodiment, the first section bar 3 and the second section bar 4 are respectively disposed horizontally and vertically, but it is not limited to such an arrangement, for example, both the first section bar 3 and the second section bar 4 may be disposed obliquely, or one of them may be disposed obliquely, that is, it is only necessary to increase the supporting strength of the wall main frame by the way of crossing arrangement.
In the embodiment, the primary supporting structure system which takes the corrugated plate 6 as a main stress member has unique structural advantages, the corrugated plate 6 bears the load in both axial and radial directions, and the radial rigidity of the structure is increased. The longitudinal ripple can also play a role in displacement compensation, so that the device can better adapt to the uneven deformation of surrounding rocks, particularly for an underground tunnel, the larger deformation of the surrounding rocks can play the advantages of the 6 hoop and longitudinal bidirectional bearing of the corrugated plate, the load effect of vertical soil pressure is dispersed, the whole flexible bearing greatly improves the shock resistance and fatigue performance of the structure, and the isotropic characteristics of steel are fully exerted. When the corrugated plate 6 primary support structure is used, the section types of different section forms, such as horseshoe shape, pear shape, tube shape, box shape, circular shape and the like, can be adjusted according to the stratum characteristics and the use requirements.
In addition, because the corrugated plate 6, the first annular beam 7 and the channel steel are all prefabricated in a factory, and the welding and the hole opening operation are finished in the factory, the invention is more beneficial to the quality control of products, can effectively reduce the problems of long in-hole adjustment time, difficult splicing of bolt holes and the like caused by the precision problem of the components, adopts a full splicing process for main stressed components, simplifies the in-hole operation procedures and operation time, truly realizes the 'quick closing' principle, thereby reducing the influence on surrounding construction and ground surface settlement, facilitating the later-stage recycling of splicing work, reducing the construction cost, and having good water-closing property of the steel structure, compared with the traditional 'steel grating + sprayed concrete 5' primary support structure, the structure has a plurality of advantages and is more suitable for underground tunnel engineering.
The flange plates on two sides of the I-shaped steel 16 are welded into a combined beam through two to three first steel plates 17 and the end heads of the I-shaped steel are welded into a combined beam through second steel plates 18, the combined beam is connected through connecting holes 19 in the second steel plates 18 by high-strength bolts to form a frame beam column system for structural reinforcement, and the strength of the structure in the position of the horizontal channel ingate combined ring beam is ensured to be enough to resist the surrounding rock pressure after the channel is opened.
In this embodiment, as shown in fig. 10 and 11, in order to implement the layered excavation of the tunnel, angle steels are welded to the first ring beams 7 at the steps on both sides of the tunnel, and rib plates 21 are provided inside the angle steels, so that the upper structure and the soil covering of the tunnel can be supported by the angle steels at the steps during the step-wise excavation.
The specific force transmission path is as follows: top plate soil pressure above the tunnel → corrugated plate → first ring beam 7 → angle iron → soil below.
Specifically, in this embodiment, the setting of angle steel can be the angle steel section bar, also can be through the welding of two third steel sheet 20 of level and vertical setting together, form the angle steel structure, later link together two third steel sheet 20 through floor 21, form stable support.
When the tunnel is constructed inside, the step method is adopted for construction, and in the step method construction process, because the ring beam and the corrugated plate are not formed into a ring, the stress of the structure is poor, and the top plate settlement and the side wall convergence of the steel corrugation 6 need to be supplemented.
Therefore, in this embodiment, steel supports 35 are applied to both sides of the corrugated plate and the arch as shown in fig. 14.
As shown in fig. 12, the steel support 35 includes a transverse support 25 and a longitudinal support 24, the transverse support 25 is seated on the core soil 26, the longitudinal support 24 is erected on the transverse support 25, rubber pads 22 are disposed on two sides of the transverse support 25 and the top of the longitudinal support 25, and the rubber pads 22 support the corrugated plate 6.
The steel support 35 is only applied when the structure is not in a ring, and for the convenience of recycling, an adjusting device 23 is arranged between the rubber pad 22 and the steel support, and the length of the support is adjusted in a hand-screwing mode.
Specifically, as shown in fig. 13, the adjusting device 23 includes an upper plate 27, a lower plate 30, a fixing sleeve 29, a fixing rod 28, an upper adjusting lever 33, a lower adjusting lever 31, and an adjusting sleeve 32.
The upper plate 27 and the lower plate 30 are oppositely arranged in parallel, a plurality of fixing rods 28 are arranged on the upper plate 27, a plurality of fixing sleeves 29 are arranged on the lower plate 30, and the fixing sleeves 29 are sleeved on the fixing rods 28; go up adjusting lever 33 and fixed the setting on upper plate 27, lower adjusting lever 31 is fixed the setting on hypoplastron 30, and the upper end and the last adjusting lever 33 threaded connection of adjusting sleeve 32, the lower extreme of adjusting sleeve 32 and the rotation of adjusting lever 31 down are connected, and through the mode of threaded screw, the interval between upper plate 27 and the hypoplastron 30 is adjusted to the realization, and then can be convenient for steel shotcrete's dismantlement and fixed, realize reuse.
More specifically, the lower adjusting rod 31 is provided with a rotating hoop 34, the rotating hoop 34 protrudes externally, and the rotating hoop 34 is provided with steel balls, so that the rotating effect of the adjusting sleeve 32 is ensured, and the adjusting sleeve 32 can be axially positioned.
In the preferred embodiment of the invention, the second profile 4 is arranged through the first profile 3.
Specifically, in this embodiment, when the cross-sectional area of the second profile 4 is smaller than the cross-sectional area of the first profile 3, the first profile 3 is perforated to allow the second profile 4 to pass through the first profile 3, so that only one second profile 4 is used on the same vertical line, and the strength of the second profile 4 is ensured.
More specifically, in the present embodiment, after the second profile 4 passes through the opening of the first profile 3, a welding process is performed at the connection position of the first profile 3 and the second profile 4 to ensure the connection strength and the connection stability between the first profile 3 and the second profile 4.
In another preferred embodiment of the invention, the second profile 4 is arranged on one side of the first profile 3.
That is, in the present embodiment, the plurality of first profiles 3 are arranged in parallel to form a plane, the plurality of second profiles 4 are arranged vertically to form a plane, the second profiles 4 are arranged on one side of the first profiles 3, and the first profiles 3 are fixedly connected to one side of the second profiles.
In this embodiment, there are many fixing connection manners between the first profile 3 and the second profile 4, such as welding, riveting, bolting, binding, etc., as long as the fixing connection between the first profile 3 and the second profile 4 can be achieved.
Specifically, in the preferred embodiment of the present invention, the first section bar 3 is a channel steel or an i-steel, and the second section bar 4 is a steel bar.
More specifically, in this embodiment, the first section bar 3 is an i-beam, wherein the left and right ends of the i-beam are connected by welding after abutting against the inner side wall of the first annular beam 7, and reinforcing steel bars are fixedly arranged on the inner and outer sides of the i-beam by welding or the like.
It should be noted that the first profile 3 may be a channel steel or an i-steel, but is not limited to the channel steel or the i-steel, and may be other profiles, such as an angle iron; similarly, the second profile 4 may be a steel bar, which is not limited to a steel bar, and may also be other profiles such as a channel or an angle. That is, it is sufficient if it is a profile that can be mass-produced, is easy to prefabricate, and can ensure the strength of the wall body main frame.
In the preferred embodiment of the invention, concrete 5 is poured onto the main frame of the wall.
In this embodiment, after concrete 5 is poured on the main frame of the wall body in a spraying manner, a complete end-sealed wall body 2 is formed, so that the supporting effect on the tunnel is improved, and the supporting function is ensured.
In the preferred embodiment of the invention, the corrugated plate 6 is surface coated with asphalt, hot dip galvanized and/or hot dip aluminized.
Specifically, in this embodiment, the corrugated plate 6 is formed by cold-bending a low-carbon steel plate, and the surface is coated with asphalt and hot-dip galvanized or hot-dip aluminized to improve the structural toughness and corrosion resistance of the corrugated plate 6 and ensure the supporting function of the corrugated plate 6 on the tunnel.
In the preferred embodiment of the present invention, the corrugated plate 6 is provided with a first mounting end plate 8 and a second mounting end plate 9; first mounting end plates 8 are provided at a pair of opposite ends of the corrugation plates 6 for mounting the corrugation plates 6 on the first ring beam 7; a second mounting end plate 9 is provided at the other pair of opposite ends of the corrugated plates 6 for connecting adjacent corrugated plates 6 together.
Specifically, in this embodiment, the corrugated plate 6 is a square plate, and a mounting end plate for connecting with other members is provided around the corrugated plate 6, wherein two first mounting end plates 8 are provided relatively for fixedly connecting the corrugated plate 6 with the first ring beam 7, and two second mounting end plates 9 are provided on the other two end surfaces of the corrugated plate 6 for connecting the adjacent corrugated plates 6.
More specifically, in this embodiment, at least one first mounting hole 11 is provided on the first mounting end plate 8, at least one fixing hole 12 is also provided on the first ring beam 7, the positions and the numbers of the first mounting hole 11 and the fixing hole 12 are both set correspondingly, and after the fixing bolt passes through the first mounting hole 11 and the fixing hole 12, the fixing bolt is fastened by using a fixing nut, so as to realize the fixed connection between the first mounting end plate 8 and the first ring beam 7, and further realize the purpose of mounting the corrugated plate 6 on the first ring beam 7.
In this embodiment, at least one second mounting hole 13 is formed in the second mounting end plate 9, after the side surface of the second mounting end plate 9 of the corrugated plate 6 abuts against the side surface of the second mounting end plate 9 on the adjacent corrugated plate 6, the second mounting holes 13 are correspondingly formed, the fixing bolt penetrates through the second mounting holes 13 on the two second mounting end plates 9, and then the fixing nut is used for tightening, so that the purpose of fixing the two adjacent corrugated plates 6 is achieved.
More specifically, in the present embodiment, the first mounting end plate 8 and the second mounting end plate 9 are fixedly connected to the corrugated plate 6 by welding.
It should be noted that the fixed connection mode of the first installation end plate 8 on the corrugated plate 6 and the fixed connection mode of the second installation end plate 9 on the corrugated plate 6 may be the above welding, or may be other fixed connection modes, and the fixed connection modes may be the same or different, as long as it can be realized that the first installation end plate 8 and the second installation end plate 9 are fixedly arranged on the corrugated plate 6.
In this embodiment, waterproof rubber pads 15 are arranged between the first mounting end plate 8 and the first ring beam 7 and between the two second mounting end plates 9, so that the connection tightness can be ensured, and phenomena such as water seepage can not occur in the tunnel.
The waterproof rubber mat 15 may be arranged in the following specific ways:
linear type: as shown in fig. 6, the corrugated plate is arranged along the length direction of the first installation end plate 8 or the second installation end plate 9, and the waterproof rubber mat 15 has the same length as the first installation end plate 8 or the second installation end plate 9, so as to isolate the two opposite sides of the corrugated plate 6.
The linear waterproof rubber mat 15 can be arranged at the end of the first mounting end plate 8 or the second mounting end plate 9 close to the corrugated plate 6, or at the end far away from the corrugated plate 6, or at other positions as long as the positions of the first mounting hole 11 and the second mounting hole 13 can be bypassed, and the first mounting hole 11 and the second mounting hole 13 are prevented from being covered.
Preferably, the waterproof rubber mat 15 is arranged on one side of the first mounting hole 11 or the second mounting hole 13 close to the corrugated plate 6, so that concrete or mortar sealed by the corrugated plate 6 is prevented from seeping out of the first mounting hole 11 or the second mounting hole 13, and the waterproof performance is ensured.
Ring type: as shown in fig. 7, the waterproof rubber mat 15 is arranged around the outer edge of the first installation end plate 8 or the second installation end plate 9 to form a ring shape, so that the sealing can be realized from all directions, and the waterproof effect is ensured.
In the preferred embodiment of the invention, the first ring beam 7 is provided with hand holes 14 for facilitating the mounting of the first ring beam 7.
In the present embodiment, since the first ring beam 7 has a tubular shape, in order to facilitate the fastening by the fastening nut after the fastening bolt is inserted through the fastening hole 12, a hand hole 14 is provided in the first ring beam 7, and the fastening bolt can be securely inserted into the first ring beam 7 by the hand hole 14.
Specifically, in this embodiment, when the installation is performed, the fixing bolt enters the inside of the first ring beam 7 from the hand hole 14, and after sequentially passing through the fixing hole 12 and the first mounting hole 11, the fixing nut is used outside, so that the operation is facilitated, the area of the hand hole 14 can be reduced, and the strength of the first ring beam 7 is ensured.
Specifically, at least three first annular beam 7 hand holes 14 are arranged on each ring of the first annular beam 7, and splicing operation of longitudinal corrugated plate 6 bolts and channel steel bolts is performed in the hand holes 14.
In the preferred embodiment of the present invention, the hand hole 14 is a circular hole or a square hole.
Specifically, in the present embodiment, the hand hole 14 is shaped as a square hole, and more specifically, as a rectangular hole, so as to ensure that the fixing bolt can enter the first annular beam 7 and be correspondingly installed in the fixing hole 12.
In the preferred embodiment of the invention, the first annular beam 7 is coaxial with the support band.
A tunnel comprising a corrugated sheet tunnel primary support structure as claimed in any one of the preceding claims.
The embodiment of the invention has the beneficial effects that:
the radial rigidity of the structure is increased by a primary supporting structure system taking the corrugated plate 6 as a main stressed member; corrugated plate 6, first ring beam 7, first section bar 3 and second section bar 4 are the prefab, and its welding and trompil operation are all accomplished in the mill, more are favorable to product quality control, can reduce effectively that the hole that arouses because of the component precision problem adjusts for a long time, the difficult concatenation scheduling problem of bolt hole, and the main atress component adopts the full concatenation technology, has simplified hole interior operation process and activity duration, realizes "closing soon" principle in the true sense.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A corrugated plate tunnel primary support structure is characterized by comprising a channel support, a ingate combined ring beam and a blocked wall body;
the channel support is cylindrical, the ingate combined ring beam is arranged at one end of the channel support and used for reinforcing the structure after the channel is holed, and the end-sealed wall body is arranged at the other end of the channel support and used for plugging one end of the channel support;
the channel support comprises corrugated plates and a first annular beam, the corrugated plates are sequentially connected to form annular support belt rings, and the adjacent support belt rings are connected through the first annular beam;
the ingate combined ring beam comprises I-shaped steel and steel plates, the I-shaped steel is welded through a first steel plate and a second steel plate to form a combined beam, and a plurality of combined beams are sequentially connected through the second steel plate to form a frame beam column system;
the end-sealed wall body comprises a first section bar and a second section bar which are detachably connected, the first section bar is arranged in parallel, the second section bar is arranged vertically, and the first section bar and the second section bar are arranged in a crossed mode to form a wall body frame with a net-shaped structure.
2. A corrugated sheet tunnel primary support structure as claimed in claim 1, wherein the second profile is provided through the first profile;
or the second section bar is arranged on one side of the first section bar.
3. The corrugated sheet tunnel primary support structure of claim 1, wherein the first section bar is a channel steel or an I-steel and the second section bar is a steel bar.
4. A corrugated plate tunnel primary support structure as claimed in claim 1, wherein the wall body main frame is cast with concrete.
5. A corrugated sheet tunnel primary support structure according to claim 1, wherein the surface of the corrugated sheet is coated with asphalt, hot-dip galvanized and/or hot-dip aluminized.
6. The corrugated plate tunnel primary support structure of claim 1, wherein a first mounting end plate and a second mounting end plate are provided on the corrugated plate;
the first mounting end plate is disposed at a pair of opposite ends of the corrugated plate for mounting the corrugated plate on the first ring beam;
the second mounting end plate is disposed at another pair of opposite ends of the corrugated plates for connecting adjacent corrugated plates together.
7. A corrugated plate tunnel primary support structure according to claim 6, wherein the first ring beam is provided with hand holes for facilitating the installation of the first ring beam.
8. A corrugated plate tunnel primary support structure according to claim 6, wherein waterproof rubber mats are arranged between the first mounting end plate and the first ring-shaped beam and between the two second mounting end plates.
9. A corrugated sheet tunnel primary support structure as claimed in claim 1, wherein the first annular beam is coaxial with the support band.
10. A tunnel comprising a corrugated sheet tunnel primary support structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010422368.2A CN111502756A (en) | 2020-05-19 | 2020-05-19 | Corrugated plate tunnel primary support structure and tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010422368.2A CN111502756A (en) | 2020-05-19 | 2020-05-19 | Corrugated plate tunnel primary support structure and tunnel |
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| CN111502756A true CN111502756A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010422368.2A Pending CN111502756A (en) | 2020-05-19 | 2020-05-19 | Corrugated plate tunnel primary support structure and tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472816A (en) * | 2020-05-19 | 2020-07-31 | 中铁北京工程局集团有限公司 | Construction method of corrugated plate supporting structure and subway transverse channel |
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| KR20120050747A (en) * | 2010-11-11 | 2012-05-21 | 평산에스아이 주식회사 | Precast tunnel structure using corrugated multi plate |
| CN107435547A (en) * | 2017-08-03 | 2017-12-05 | 中国铁道科学研究院铁道建筑研究所 | Supporting ripple board component and tunnel supporting method |
| CN207111119U (en) * | 2017-08-17 | 2018-03-16 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of Tunnel structure |
| CN212337366U (en) * | 2020-05-19 | 2021-01-12 | 北京市轨道交通建设管理有限公司 | Corrugated plate tunnel primary support structure and tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20120050747A (en) * | 2010-11-11 | 2012-05-21 | 평산에스아이 주식회사 | Precast tunnel structure using corrugated multi plate |
| CN107435547A (en) * | 2017-08-03 | 2017-12-05 | 中国铁道科学研究院铁道建筑研究所 | Supporting ripple board component and tunnel supporting method |
| CN207111119U (en) * | 2017-08-17 | 2018-03-16 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of Tunnel structure |
| CN212337366U (en) * | 2020-05-19 | 2021-01-12 | 北京市轨道交通建设管理有限公司 | Corrugated plate tunnel primary support structure and tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111472816A (en) * | 2020-05-19 | 2020-07-31 | 中铁北京工程局集团有限公司 | Construction method of corrugated plate supporting structure and subway transverse channel |
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