CN114151103B - Slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel duct pieces - Google Patents
Slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel duct pieces Download PDFInfo
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- CN114151103B CN114151103B CN202111441589.5A CN202111441589A CN114151103B CN 114151103 B CN114151103 B CN 114151103B CN 202111441589 A CN202111441589 A CN 202111441589A CN 114151103 B CN114151103 B CN 114151103B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
Abstract
The invention discloses a slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel segments, which comprises a first arc plate, a second arc plate, a crescent moon plate and brackets (if the arc plates are provided), wherein the first arc plate and the second arc plate are respectively arranged on concrete segments on two sides of a slab staggering annular seam, and two sides of the crescent moon plate are respectively welded and fixed with one side of the first arc plate and one side of the second arc plate, which are opposite to each other. The staggered steel lining structure is matched with the staggered pipe piece structure, and a steel lining reinforcing structure with a corresponding structure is constructed by combining the staggered defect structure, so that the steel lining reinforcing structure and the staggered defect structure are mutually corresponding, mutually matched, customized in size and tightly jointed, and the reinforcing effect can be enhanced.
Description
Technical Field
The invention relates to the technical field of subway tunnel construction, in particular to a slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnels.
Background
According to the common defect characteristics of the subway shield tunnel, the main defects of the tunnel are divided into three types of segment leakage, damage and deformation defects. The tunnel segment dislocation disease belongs to a tunnel disease which is serious in the category of deformation diseases. If the dislocation amount of the tunnel segment exceeds the limit, the tunnel damage can seriously affect the structural safety of the tunnel and the operation safety of the subway. Therefore, staggering is a key factor affecting the quality of the tunnel.
The joints between the concrete segments of the shield tunnel should be smooth under normal conditions. And the gaps of the splicing seams are uniform and basically the same everywhere. If the edge of the concrete segment at the segment joint has the phenomenon that the edge protrudes towards the center direction of the tunnel or is sunken away from the center direction of the tunnel due to some reason, the damage phenomenon is called as slab staggering.
According to the different positions of the staggered platform, the segment staggered platform diseases are divided into annular staggered platform and longitudinal staggered platform. The circumferential staggered platform (block joint staggered platform) refers to the block joint staggered platform which appears between adjacent pipe piece blocks in the same pipe piece lining ring; longitudinal staggering (ring joint staggering) refers to the ring joint staggering between adjacent and different segment lining rings. The longitudinal slab staggering is common and is also a tunnel deformation disease which has serious influence on the safety of a tunnel structure and the safety of subway operation.
And dividing the segment dislocation diseases into four grades according to different numerical values of the dislocation quantity e. When the staggering amount e is more than or equal to 20mm, the grading of the staggering disease is I grade. The staggering amount e is not less than 15 mm and not more than 20mm, and the grading of the staggering disease is II grade; the staggering amount e is more than or equal to 10 mm and less than or equal to 15 mm. The stage of the slab staggering disease is III; the staggering amount e is less than or equal to 10 mm, and the grading of the staggering diseases is IV grade. Because of the slab staggering disease above the I level, the connection strength between the concrete pipe pieces at the slab staggering joint and all technical indexes, waterproof performance and technical indexes can be seriously damaged by the slab staggering disease, and the slab staggering disease is seriously reduced. Therefore, the parts with serious slab staggering exceeding standard need to be repaired, structurally reinforced and reinforced in time.
The slab staggering disease is mainly caused by the following reasons:
1. the attitude control of the shield tunneling machine in the shield tunnel construction is not good enough, the assembly difficulty of concrete pipe pieces is increased, and the phenomena of pipe piece corner collapse, block falling, peeling and platform dislocation caused by the extrusion of the shield tail on the upstream surface are avoided. If the operation of a concrete segment assembling worker is not professional, accurate and skilled enough, the assembling and forming quality of the concrete segment can be directly influenced.
2. The concrete pipe piece floats up (down). When in construction of loose and weak stratum, the concrete segment is grouted after the wall, the initial setting time is longer, the periphery of the shield tunnel is surrounded and soaked in liquid soil for a long time, the liquid soil generates a floating force larger than the self weight of the concrete segment, and if measures are not adopted properly, the continuous platform dislocation phenomenon is easy to occur on the upper concrete segment of the shield tunnel.
3. With the continuous development of urban construction, the construction of urban buildings (building construction and municipal bridges) in the project of reconstruction and extension and the foundation construction of foundation pits, pile foundations and the like which are correspondingly matched are frequently encountered near the upper area of an in-situ iron tunnel, so that the external load borne by the shield tunnel is greatly changed, and the concrete pipe of the shield tunnel can be damaged to a certain extent due to similar load changes. And causing tunnel defects such as duct piece cracks, water seepage, slab staggering and the like.
In the prior art, a method for reinforcing the structure by installing a steel lining at a staggered joint is generally adopted for treating the staggered platform of a tunnel segment.
According to the damaged degree of the slab staggering concrete pipe piece and the slab staggering quantity, the steel lining 100 with proper width and thickness is installed at the slab staggering joint 200 to be reinforced and reinforced, but gaps are formed between the steel lining 100 and the pipe piece, and epoxy mortar 300 is needed to be filled and leveled when the thickness of the gaps is larger than 2 cm. As shown in fig. 1.
The reinforcing of current general wrong platform joint-riding steel inside lining, reinforcement need show that the protruding, that exceeds 20 centimetres side's that partly concrete is gone wrong to the concrete segment platform, will carry out the chiseling processing, chiseling itself is exactly the damage once more to the concrete segment. This again impairs the overall strength of the concrete segment. For the condition that the slab staggering quantity is larger than 50mm, the maximum chiseling thickness cannot exceed 40mm, otherwise, because the steel bar protection layer of the concrete segment (the normal numerical value of the steel bar protection layer of the concrete segment is 50mm) is too thin, the accident that steel bars are exposed is easy to chive. In addition, in the prior art, for the other side of the concrete segment slab staggering, which is concave and short, an early-strength and quick-hardening repair material (such as equal-strength epoxy mortar) needs to be adopted for carrying out embedding, filling and leveling in a layered manner (based on a roughened surface after the chiseling treatment of the concrete of the segment). The early-strength rapid-hardening repairing material is difficult to be really integrated with the original pipe piece concrete. Further, the larger the thickness of the repair material is, the lower the degree and effect of the integration with the original piece of concrete.
In summary, for the side of the segment that is raised and raised for chiseling concrete, the supporting force of the installed steel lining can be directly transmitted to the concrete segment that is raised and raised relatively according to the current general practice. And for the early-strength rapid-hardening repairing material, the embedding, filling, repairing and leveling treatment are carried out, the other side with a concave and a low structure is presented, and the supporting force of the steel lining of the riding seam is indirectly transmitted to the concrete pipe sheet on the side through the repairing layer of the filling material. Because the repair layer can not accomplish completely with the section of jurisdiction concrete of this side, really realize fusing into an organic whole, what ever, when the installation steel inside lining of the perforation, still need on the repair layer of filling material, carry out the drilling industry of anchor keyhole, also can harm this side filling material's repair layer for the comprehensive atress effect is consolidated in the reinforcement of steel inside lining of perforation, has the reduction of very big degree.
Therefore, when the slab staggering amount exceeds 20mm, particularly the slab staggering amount exceeds 50mm, the comprehensive effect of reinforcing and reinforcing the steel lining is difficult to achieve the purpose of reinforcing the steel lining by being implemented according to the existing general process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel segments.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel segments, which comprises a first arc plate, a second arc plate and a crescent moon plate, wherein the first arc plate and the second arc plate are respectively installed on concrete segments on two sides of a slab staggering circular seam, and two sides of the crescent moon plate are respectively welded and fixed with one side of the first arc plate and one side of the second arc plate, which are opposite to each other.
Furthermore, a right-angle groove penetration welding is needed between the crescent plate and the first arc plate and the second arc plate on the two sides.
Furthermore, the structure also comprises a transition area reinforcing part, wherein the transition area reinforcing part comprises a first transition steel ring plate A and a second transition steel ring plate A, the first transition steel ring plate A is respectively butted with an upper arc plate and a lower arc plate on one side of the staggered platform circular seam, and the second transition steel ring plate A is respectively butted with an upper arc plate and a lower arc plate on the other side of the staggered platform circular seam; and one opposite side of the first transition steel ring plate A and the second transition steel ring plate A is welded and fixed.
Furthermore, longitudinal horizontal butt welds between the first transition steel ring plate A and the first arc plate and between the second transition steel ring plate A and the second arc plate are groove penetration welds.
Furthermore, the circumferential butt weld between the first transition steel ring plate A and the second transition steel ring plate A is groove penetration welding, and the surface of the weld is spiral.
The transition region reinforcing part in another form comprises a first transition steel ring plate B, a second transition steel ring plate B, a third transition steel ring plate B and a fourth transition steel ring plate B, wherein the first transition steel ring plate B and the third transition steel ring plate B are welded, butted and installed between an upper arc plate and a lower arc plate on one side of the staggered platform circular seam, and the second transition steel ring plate B and the fourth transition steel ring plate B are welded, butted and installed between the upper arc plate and the lower arc plate on the other side of the staggered platform circular seam; the first transition steel ring plate B and the third transition steel ring plate B are respectively welded and fixed with the first two arc plates, and the second transition steel ring plate B and the fourth transition steel ring plate B are respectively welded and fixed with the second two arc plates; and the first transition steel ring plate B and the second transition steel ring plate B are welded and fixed, and the third transition steel ring plate B and the fourth transition steel ring plate B are welded and fixed.
Furthermore, the longitudinal horizontal butt weld between the first transition steel ring plate B and the third transition steel ring plate B is groove penetration welding; the longitudinal horizontal butt weld between the second transition steel ring plate B and the fourth transition steel ring plate B is groove penetration welding; longitudinal horizontal butt welds between the first transition steel ring plate B, the third transition steel ring plate B and the first arc plate are groove penetration welds; and longitudinal horizontal butt welds between the second transition steel ring plate B, the fourth transition steel ring plate B and the second arc plate are groove penetration welds.
Furthermore, the circumferential butt weld between the first transition steel ring plate B and the third transition steel ring plate B and the circumferential butt weld between the second transition steel ring plate B and the fourth transition steel ring plate B are both groove penetration welds, and the surfaces of the welds are spiral.
Furthermore, the structure also comprises a bracket reinforcing part which comprises a vertical reinforcing plate, a horizontal reinforcing plate, a circumferential rib plate I, a longitudinal rib plate I, a bracket reinforcing circular arc plate I, a crescent vertical plate, a bracket reinforcing circular arc plate II, a circumferential rib plate II, a longitudinal rib plate II and a longitudinal rib plate III; the crescent vertical plates are respectively welded and fixed with the bracket reinforcing circular arc plates I and II on the two sides; one end of the vertical stiffening plate is welded and fixed with the horizontal stiffening plate, and the vertical stiffening plate and the horizontal stiffening plate are respectively welded and fixed with the annular rib plate I; the other end of the vertical stiffening plate is respectively welded and fixed with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II; the annular rib plate I and the longitudinal rib plate II are respectively welded and fixed with the bracket reinforcing arc plate I; the annular rib plate I and the longitudinal rib plate I are respectively welded and fixed with the bracket reinforcing circular arc plate II; the longitudinal rib plate I is respectively welded and fixed with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II; the bracket reinforcing circular arc plate I, the crescent vertical plate and the bracket reinforcing circular arc plate II are respectively in butt joint with the circular arc plate I, the crescent plate and the circular arc plate II and are welded and fixed.
Furthermore, the crescent vertical plates are respectively welded with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II on the two sides in a penetration manner by adopting right-angle grooves; one end of the vertical stiffening plate and the horizontal stiffening plate are welded through fusion by adopting a right-angle groove, and the vertical stiffening plate and the horizontal stiffening plate are respectively welded with the annular rib plate I by adopting a right-angle fillet; the other end of the vertical stiffening plate is respectively welded with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II by groove penetration; the annular rib plate I and the longitudinal rib plate II are respectively welded with the bracket reinforcing circular arc plate I through right-angle corner attachment.
Furthermore, the annular rib plate I and the longitudinal rib plate III are respectively welded with the bracket reinforcing circular arc plate II by right-angle corner fitting; the longitudinal rib plate I is respectively welded with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II through right-angle corner fitting.
Furthermore, the bracket reinforcing circular arc plate I, the crescent vertical plate and the bracket reinforcing circular arc plate II are respectively in butt joint with the circular arc plate I, the crescent plate and the circular arc plate II and are welded by adopting a full penetration groove.
The invention has the beneficial effects that: the staggered platform of the staggered platform steel lining reinforcing structure can be matched with the damaged staggered platform of the concrete segment, and the steel lining reinforcing structure with a corresponding structure is constructed, so that the steel lining reinforcing structure and the damaged staggered platform are mutually corresponding, matched, customized in size and tightly jointed, and the reinforcing effect can be enhanced.
Drawings
FIG. 1 is a schematic diagram of a prior art reinforcement technique;
FIG. 2 is a schematic plan view of a reinforcing structure according to example 1 of the present invention;
FIG. 3 is a schematic view of the W-direction structure of FIG. 2;
FIG. 4 is a sectional view taken along line A-A of FIG. 2;
FIG. 5 is an enlarged schematic view of FIG. 4;
FIG. 6 is a combined view of FIG. 2 and a slab staggering disease;
fig. 7 is a schematic plan view of a reinforcing structure in embodiment 2 of the present invention;
FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;
FIG. 9 is a cross-sectional view taken along line B-B of FIG. 7;
FIG. 10 is a cross-sectional view taken along line C-C of FIG. 7;
FIG. 11 is a sectional view taken along line F-F of FIG. 7;
FIG. 12 is a cross-sectional view taken along line 0-0 of FIG. 7;
FIG. 13 is a cross-sectional view taken along line E-E of FIG. 7;
FIG. 14 is a cross-sectional view taken along line D-D of FIG. 7;
fig. 15 is a schematic plan view of a reinforcing structure in embodiment 3 of the present invention;
FIG. 16 is a cross-sectional view taken along line A-A of FIG. 15;
FIG. 17 is a sectional view taken along line B-B of FIG. 15;
FIG. 18 is a cross-sectional view taken along line C-C of FIG. 15;
FIG. 19 is a sectional view taken along line F-F of FIG. 15;
FIG. 20 is a cross-sectional view taken along line 0-0 of FIG. 15;
FIG. 21 is a cross-sectional view taken along line E-E of FIG. 15;
FIG. 22 is a cross-sectional view taken along line D-D of FIG. 15;
FIG. 23 is a schematic top view of a reinforcement structure according to embodiment 3 of the present invention;
FIG. 24 is a sectional view taken along line A-A of FIG. 23;
fig. 25 is a sectional view taken along line B-B of fig. 23.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
The wrong platform steel lining reinforced structure who is applicable to subway tunnel section of jurisdiction wrong platform disease that this embodiment provided, according to the difference that the wrong platform volume e of shield tunnel wrong platform disease is greater than or equal to 20 mm's numerical value, the installation requirement is also different, and this embodiment divides into basic installation region, transition installation region (the regional novel steel lining reinforced structure of transition installation has two kinds of structural style) and bracket (if there) installation region to novel steel lining reinforced structure's installation region. Aiming at different characteristics of each installation area and different installation requirements, a novel steel lining reinforcing structure and technical measures which have pertinence and respectively have different characteristics are respectively adopted to jointly meet and realize the integral installation requirement of the whole complete staggered platform steel lining.
In addition, the reinforced structure of the staggered steel lining provided by the embodiment is explained on the basis that No. 2 segment and No. 3 segment sink in the staggered manner relative to No. 3 segment according to the shield tunnel No. 2 segment and No. 3 segment, and the staggered amount e is more than 0 horizontal line and is more than 2 horizontal line, and vice versa, and the staggered amount e is less than 0 and is more than 3 vertical line and is more than 2 vertical line. The corresponding circular arc plate of No. 2 duct piece is called circular arc plate one 2, and the circular arc plate of No. 3 duct piece is called circular arc plate two 3.
Example 1
The present embodiment provides a staggered steel lined reinforcement structure installed in a basic installation area. The basic mounting region is a region where the dislocation amount-t ≧ e ≧ t (the upper portion t where e is 0 is a positive value, and the negative value is negative), and the regions satisfying the above conditions are all reinforced by the dislocation steel liner reinforcing structure of the present embodiment. The widths of the arc plates of the basic installation areas are different, the width of the steel lining arc plate far away from the center of the tunnel is w, and the width of the steel lining arc plate near the center of the tunnel is w + t.
As shown in fig. 2-5, the reinforced structure of the staggered platform steel lining of this embodiment includes one arc plate 2, two arc plates 3 and crescent moon board 1, one arc plate 2 and two arc plates 3 are installed respectively on the concrete pipe of staggered platform circumferential weld department both sides, crescent moon board 1 both sides respectively with one side welded fastening that one arc plate 2 and two arc plates 3 are relative.
As shown in figure 2 (the width mark of the arc plate refers to the position of the installation area e which is more than or equal to t horizontal line), a crescent moon plate 1 is arranged between the first arc plate 2 and the second arc plate 3. A and b in fig. 3 are just the amount of staggering at two ends of the installation position of the staggered steel lining reinforcing structure of the embodiment respectively. The embodiment forms unique 'structural slab staggering', so that the 'damaged slab staggering' appearing on the slab staggering steel lining reinforced structure slab staggering and the shield tunnel concrete pipe is mutually corresponding, mutually matched, customized in size and strictly jointed, and is directly installed on the concrete pipe on two sides of the slab staggering circular seam in a 'right-to-wrong' mode.
As shown in fig. 4-5, the crescent plate 1 and the first arc plate 2 and the second arc plate 3 on both sides need to be welded by right-angled groove penetration, and the adjacent crescent plates in the same ring need to be welded by groove butt penetration. According to the actual situation on site, if the arc length of the single crescent plate matched with the staggered circular seam is too long, the difficulty of field installation or the influence of equipment for operating tunnel pipe cables and the like can be caused, and in order to solve the problem, the single longer crescent plate can be spliced in blocks, and the butt welding seam between the single crescent plate and the long crescent plate is full penetration groove welding.
Fig. 6 is a schematic view of the combination of the reinforcing structure and the concrete segments on both sides of the staggered annular seam.
Example 2
This example provides a staggered steel lining reinforcing structure, as shown in fig. 7-14, based on example 1,increase AddingThe transition region reinforces the portion. Because there is a mounting region between two basic mounting regions, the region of which the value e of the dislocation amount is between t and 0 or the region of which the value e of the dislocation amount is between 0 and-t (the arc length is set to L), namely: e ═ 0 to ± t. The offset amount on the horizontal line with the offset amount e equal to 0 is positive (+) and negative (-). Referred to as a transitional mounting area.
The transition region reinforcing part comprises a transition steel ring plate A I4 and a transition steel ring plate A II 5, the transition steel ring plate A I4 is respectively butted with two arc plates I2 at one side of the staggered platform circular seam, and the transition steel ring plate A II 5 is respectively butted with two arc plates II 3 at the other side of the staggered platform circular seam; and one adjacent side of the first transition steel ring plate A4 and the second transition steel ring plate A5 is welded and fixed.
By utilizing the transition area reinforcing part, the staggered steel lining reinforcing structure can be more consistent with the staggered damaged area.
As shown in fig. 7-9, the longitudinal horizontal butt weld between the transition steel ring plate a-4 and the arc plate a-2 is groove penetration welding. Because the width of the lower arc plate I2 is W + t and the width of the transition steel ring plate A I4 is W, a t multiplied by t or t multiplied by 45-degree fillet weld needs to be additionally arranged at the lower right corner of the transition steel ring plate A I4 to improve the stress concentration at the position.
The longitudinal horizontal butt weld between the second transition steel ring plate A5 and the second arc plate 3 is groove penetration welding, and as the width of the second upper arc plate 3 is W + t and the width of the second transition steel ring plate A5 is W, a t multiplied by t or t multiplied by 45-degree fillet weld needs to be additionally arranged at the upper left corner of the second transition steel ring plate A5 to improve the stress concentration at the position.
As shown in fig. 10 to 14, the circumferential butt weld between the first transition steel ring plate a 4 and the second transition steel ring plate a 5 is groove penetration welding, and the weld surface is in a spiral shape. Moreover, the welding groove needs to be arranged on the side of the transition plate which is concave and low. The width of the welding groove is a plate thickness t, and the angle α of the groove is continuously varied in a range of 0 ° to 45 °, but is not uniformly varied. The closer to one end of the dislocation amount e is 0, the faster the angle α changes (the larger the change rate), and when the dislocation amount e is 0, the maximum angle α is 45 °; the angle α changes more slowly (the rate of change is smaller) as the dislocation amount e becomes closer to the end of t, and when the dislocation amount e becomes equal to t, the angle α becomes 0 ° at the minimum.
Example 3
The embodiment provides a staggered platform steel lining reinforcing structure, on the basis of embodiment 1, a transition region reinforcing part different from that of embodiment 2 is added, and the reinforcing part comprises a first transition steel ring plate B6, a second transition steel ring plate B7, a third transition steel ring plate B8 and a fourth transition steel ring plate B9, wherein the first transition steel ring plate B6 and the third transition steel ring plate B8 are welded, butted and installed between two first arc plates 2 on one side of a staggered platform circular seam, and the second transition steel ring plate B7 and the fourth transition steel ring plate B9 are welded, butted and installed between two second arc plates 3 on one side of the staggered platform circular seam; the first transition steel ring plate B6 and the third transition steel ring plate B8 are respectively welded and fixed with the first two arc plates 2, and the second transition steel ring plate B7 and the fourth transition steel ring plate B9 are respectively welded and fixed with the second two arc plates 3; and the first transition steel ring plate B6 and the second transition steel ring plate B7 are welded and fixed, and the third transition steel ring plate B8 and the fourth transition steel ring plate B9 are welded and fixed.
In the embodiment, the circumferential butt-joint welded junctions between the first transition steel ring plate B6 and the third transition steel ring plate B8 and between the second transition steel ring plate B7 and the fourth transition steel ring plate B9 are utilized to be more consistent with slab staggering defects. Because the width of the arc plate in the transition area corresponds to that of the arc plate in the basic area, the superposition of the circumferential weld and the staggered circular weld is avoided, and the structural strength is better.
As shown in fig. 15-17, the longitudinal horizontal butt weld between the first transition steel ring plate B6 and the third transition steel ring plate B8 is groove penetration welding; and the longitudinal horizontal butt weld between the second transition steel ring plate B7 and the fourth transition steel ring plate B9 is groove penetration welding. Longitudinal horizontal butt welds between the first transition steel ring plate B6, the third transition steel ring plate B8 and the first arc plate 2 are groove penetration welds. Longitudinal horizontal butt welds between the second transition steel ring plate B7, the fourth transition steel ring plate B9 and the second arc plate 3 are groove penetration welds.
As shown in fig. 18 to 22, the circumferential butt welds between the first transition steel ring plate B6, the third transition steel ring plate B8, the second transition steel ring plate B7, and the fourth transition steel ring plate B9 are groove penetration welds, and the weld surfaces are in a "spiral shape". Moreover, the welding groove needs to be formed on the side of the transition plate which is concave and low. The width of the welding groove is the plate thickness t, and the angle alpha of the groove is in the range of 0-45 degrees and continuously changes, but the width is not uniformly changed. The closer to the end of the dislocation amount e is 0, the faster the angle α changes (the larger the change rate), and when the dislocation amount e is 0, the maximum angle α is 45 °; the angle α changes more slowly (the rate of change is smaller) toward the end of the slab staggering amount e, and when the slab staggering amount e is equal to the slab thickness t, the angle α becomes 0 ° at the minimum.
Example 4
This embodiment provides a wrong platform steel lining reinforced structure, on embodiment 1's basis, increases the bracket reinforcing part, the bracket reinforcing part is applicable to and installs the wrong platform disease department in the bracket area. As shown in fig. 23 to 25, the reinforcing structure comprises a vertical reinforcing plate 10, a horizontal reinforcing plate 11, a circumferential rib plate i12, a longitudinal rib plate i13, a bracket reinforcing arc plate i 14, a crescent vertical plate 15, a bracket reinforcing arc plate ii 16, a circumferential rib plate ii 17, a longitudinal rib plate ii 18 and a longitudinal rib plate iii 19; the crescent vertical plate 15 is respectively welded with the bracket reinforcing circular arc plate I14 and the bracket reinforcing circular arc plate II 16 on the two sides in a penetration manner by adopting a right-angle groove; one end of the vertical stiffening plate 10 and the horizontal stiffening plate 11 are welded through fusion by adopting a right-angle groove, and the vertical stiffening plate 10 and the horizontal stiffening plate 11 are respectively welded with the annular rib plate I12 by adopting a right-angle fillet; the other end of the vertical stiffening plate 10 is respectively welded with the bracket reinforcing circular arc plate I14 and the bracket reinforcing circular arc plate II 16 by groove penetration; the annular rib plate I12 and the longitudinal rib plate II 18 are respectively welded with the bracket reinforcing circular arc plate I14 by right-angle fillet welding. The annular rib plate I17, the longitudinal rib plate III19 and the bracket reinforcing circular arc plate II 16 are all welded by right-angle fillet welding. The longitudinal rib plate I13 is respectively welded with the first bracket reinforcing circular arc plate 14 and the second bracket reinforcing circular arc plate 16 by right-angle fillet welding. The bracket reinforcing part structure is formed by prefabricating, assembling and welding the parts together. The bracket reinforcing part carries a structure slab staggering and is in butt joint with the corresponding arc plate I, the crescent plate and the arc plate II in the basic installation area, and the bracket reinforcing part is welded by adopting a full penetration groove.
A and b shown in fig. 24 are the amount of staggering of both ends of the staggered steel-lined reinforcing structure of the present embodiment, respectively. A crescent vertical plate 15, a vertical stiffening plate 10 and a longitudinal rib plate I13 are arranged between the first bracket reinforcing arc plate 14 and the second bracket reinforcing arc plate 16. The crescent vertical plate 15, the vertical stiffening plate 10 and the longitudinal rib plate I13 are utilized to form a special staggered platform of a structure with a specific staggered platform steel lining bracket type on the staggered platform bracket structure. The slab staggering structure and the slab staggering method of the shield tunnel concrete pipe are enabled to be mutually corresponding, mutually matched, customized in size and tightly jointed, and are directly installed on the concrete pipe slabs on two sides of a slab staggering circular seam bracket area (if any) in a mode of 'just staggering'.
The above structure is suitable for installation in a corbel installation area, the area of two sets of pre-fabricated welded structural members anchored together at the bottom-most end of the steel lining and the ballast bed. I.e. the area of e is less than or equal to-t.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (11)
1. A slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel pipe pieces is characterized by comprising a first arc plate, a second arc plate and a crescent moon plate, wherein the first arc plate and the second arc plate are respectively installed on the concrete pipe pieces on two sides of a slab staggering circular seam, and two sides of the crescent moon plate are respectively welded and fixed with one opposite sides of the first arc plate and the second arc plate;
the bracket comprises a bracket body and is characterized by also comprising a bracket reinforcing part, wherein the bracket reinforcing part comprises a vertical reinforcing plate, a horizontal reinforcing plate, a circumferential rib plate I, a longitudinal rib plate I, a bracket reinforcing arc plate I, a crescent vertical plate, a bracket reinforcing arc plate II, a circumferential rib plate II, a longitudinal rib plate II and a longitudinal rib plate III; the crescent vertical plates are respectively welded and fixed with the bracket reinforcing circular arc plates I and II on the two sides; one end of the vertical stiffening plate is welded and fixed with the horizontal stiffening plate, and the vertical stiffening plate and the horizontal stiffening plate are respectively welded and fixed with the annular rib plate I; the other end of the vertical stiffening plate is respectively welded and fixed with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II; the annular rib plate I and the longitudinal rib plate II are respectively welded and fixed with the bracket reinforcing arc plate I; the annular rib plate I and the longitudinal rib plate III are respectively welded and fixed with the bracket reinforcing circular arc plate II; the longitudinal rib plate I is respectively welded and fixed with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II; the bracket reinforcing circular arc plate I, the crescent vertical plate and the bracket reinforcing circular arc plate II are respectively in butt joint with the circular arc plate I, the crescent plate and the circular arc plate II and are welded and fixed.
2. The slab staggering steel lining reinforcing structure suitable for the slab staggering disease of the subway tunnel segments as claimed in claim 1, wherein the right-angle groove penetration welding is required between the crescent plate and the first arc plate and the second arc plate on the two sides.
3. The staggered platform steel lining reinforcing structure suitable for the staggered platform diseases of the subway tunnel segments as claimed in claim 1, further comprising a transition area reinforcing part, wherein the transition area reinforcing part comprises a first transition steel ring plate A and a second transition steel ring plate A, the first transition steel ring plate A is respectively butted with the first upper arc plate and the second upper arc plate on one side of the staggered platform circular seam, and the second transition steel ring plate A is respectively butted with the second upper arc plate and the second upper arc plate on the other side of the staggered platform circular seam; and one opposite side of the first transition steel ring plate A and the second transition steel ring plate A is welded and fixed.
4. The staggered platform steel lining reinforcing structure suitable for subway tunnel segment staggered platform diseases of claim 3, wherein the longitudinal horizontal butt welds between the first transition steel ring plate A and the first arc plate and between the second transition steel ring plate A and the second arc plate are groove penetration welds.
5. The staggered platform steel lining reinforcing structure suitable for the subway tunnel segment staggered platform disease of claim 3, wherein the circumferential butt weld between the first transition steel ring plate A and the second transition steel ring plate A is groove penetration welding, and the surface of the weld is spiral.
6. The staggered platform steel lining reinforcing structure suitable for the staggered platform defect of the subway tunnel segment as claimed in claim 1, further comprising a transition area reinforcing part, wherein the transition area reinforcing part comprises a first transition steel ring plate B, a second transition steel ring plate B, a third transition steel ring plate B and a fourth transition steel ring plate B, the first transition steel ring plate B and the third transition steel ring plate B are welded and butted and installed between the first upper arc plate and the second upper arc plate on one side of the staggered platform annular seam, and the second transition steel ring plate B and the fourth transition steel ring plate B are welded and butted and installed between the second upper arc plate and the second upper arc plate on the other side of the staggered platform annular seam; the first transition steel ring plate B and the third transition steel ring plate B are respectively welded and fixed with the first two circular arc plates, and the second transition steel ring plate B and the fourth transition steel ring plate B are respectively welded and fixed with the second two circular arc plates; the first transition steel ring plate B and the second transition steel ring plate B are welded and fixed, and the third transition steel ring plate B and the fourth transition steel ring plate B are welded and fixed.
7. The staggered steel lining reinforcing structure suitable for the subway tunnel segment staggered disease as claimed in claim 6, wherein the longitudinal horizontal butt weld between the first transition steel ring plate B and the third transition steel ring plate B is groove penetration welding; the longitudinal horizontal butt weld between the second transition steel ring plate B and the fourth transition steel ring plate B is groove penetration welding; longitudinal horizontal butt welds between the first transition steel ring plate B, the third transition steel ring plate B and the first arc plate are groove penetration welds; and longitudinal horizontal butt welds between the second transition steel ring plate B, the fourth transition steel ring plate B and the second arc plate are groove penetration welds.
8. The staggered steel lining reinforcing structure suitable for the subway tunnel segment staggered disease as claimed in claim 6, wherein the circumferential butt welds between the first transition steel ring plate B and the third transition steel ring plate B and between the second transition steel ring plate B and the fourth transition steel ring plate B are groove penetration welds, and the weld surfaces are spiral.
9. The staggered platform steel lining reinforcing structure suitable for the staggered platform diseases of the subway tunnel segments according to claim 1, wherein the crescent vertical plates are respectively welded with the bracket reinforcing circular arc plates I and II on the two sides by right-angle groove penetration welding; one end of each vertical stiffening plate and each horizontal stiffening plate are subjected to penetration welding by adopting a right-angle groove, and the vertical stiffening plates and the horizontal stiffening plates are respectively subjected to right-angle fillet welding with the annular rib plates I; the other end of the vertical stiffening plate is respectively welded with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II by groove penetration; the annular rib plate I and the longitudinal rib plate II are respectively welded with the bracket reinforcing circular arc plate I through right-angle corner attachment.
10. The staggered platform steel lining reinforcing structure suitable for the staggered platform diseases of the subway tunnel segments as claimed in claim 1, wherein the circumferential rib plate I and the longitudinal rib plate III are respectively welded with the bracket reinforcing circular arc plate II by right-angle corner fitting; the longitudinal rib plate I is respectively welded with the bracket reinforcing circular arc plate I and the bracket reinforcing circular arc plate II through right-angle corner fitting.
11. The slab staggering steel lining reinforcing structure suitable for the slab staggering disease of the subway tunnel segments as claimed in claim 1, wherein the bracket reinforcing circular arc plate I, the crescent vertical plate and the bracket reinforcing circular arc plate II are respectively butted with the circular arc plate I, the crescent plate and the circular arc plate II, and are welded by adopting a full penetration groove.
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| CN202111441589.5A CN114151103B (en) | 2021-11-30 | 2021-11-30 | Slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel duct pieces |
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| CN202111441589.5A CN114151103B (en) | 2021-11-30 | 2021-11-30 | Slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel duct pieces |
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| CN114151103B true CN114151103B (en) | 2022-06-24 |
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| JP4066534B2 (en) * | 1998-10-01 | 2008-03-26 | シーアイ化成株式会社 | Corner cover seal material |
| FR2905739B1 (en) * | 2006-09-08 | 2008-11-07 | Airbus France Sas | PANEL ASSEMBLY AND METHOD OF MOUNTING PANEL ASSEMBLY |
| CN202789903U (en) * | 2012-08-09 | 2013-03-13 | 安徽红桥金属制造有限公司 | Connection structure of Z-shaped support |
| CN203297294U (en) * | 2013-06-09 | 2013-11-20 | 苏州柏德纳科技有限公司 | Z type connection piece |
| CN203475835U (en) * | 2013-09-24 | 2014-03-12 | 山东德建集团有限公司 | Fixing part for concrete surface slab staggering beamed formwork |
| CN105735205A (en) * | 2016-03-04 | 2016-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Horizontal construction joint dislocation repairing method for concrete panel |
| CN205477651U (en) * | 2016-03-21 | 2016-08-17 | 长安大学 | Wrong platform disease punishment structure of shield tunnel |
| CN105736011A (en) * | 2016-03-21 | 2016-07-06 | 长安大学 | Shield tunnel slab staggering problem handling structure and construction method |
| CN206220971U (en) * | 2016-11-24 | 2017-06-06 | 浙江越宫钢结构有限公司 | A kind of ruggedized construction of tunnel duct piece |
| CN109488315B (en) * | 2018-10-30 | 2020-11-06 | 山东大学 | Shield tail sealing construction processing system and method based on duct piece staggered joint |
| CN209309066U (en) * | 2018-12-24 | 2019-08-27 | 常州市新创智能科技有限公司 | A kind of composite material connector |
| CN210686527U (en) * | 2019-05-22 | 2020-06-05 | 黄锡楠 | Connecting bedplate |
| CN212613274U (en) * | 2020-04-08 | 2021-02-26 | 菏泽城建工程发展集团有限公司 | Connecting structure for steel beam lifting plate |
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