1. A lofting method for a steel shell pipe joint GINA water stop and an OMEGA water stop is characterized by comprising the following steps:

s1, establishing a steel shell pipe joint model (1), a GINA water stop belt model (2), an OMEGA water stop belt model (3), a first fixing component model (4) for fixing the GINA water stop belt and a second fixing component model (5) for fixing the OMEGA water stop belt in software;

s2, determining a positioning datum line on the steel shell pipe joint model (1);

s3, lofting the GINA waterstop model (2), assembling the GINA waterstop model (2) on an annular surface at one end of the steel shell pipe joint model (1) by referring to the positioning datum line, and installing the OMEGA waterstop model (3) between the inner wall surfaces of two adjacent steel shell pipe joint models (1);

s4, installing two groups of first fixing component models (4) on the annular surface of one end of the steel shell pipe joint model (1), and installing two groups of second fixing component models (5) on the inner wall surfaces of two adjacent steel shell pipe joint models (1) respectively.

2. The method of lofting steel-shell pipe joint GINA and OMEGA waterstops according to claim 1, characterized in that the first fixed assembly model (4) comprises a GINA pressing block (41), a GINA pressing plate (42) and a first fastener (43), the GINA pressing block (41) is arranged on the annular surface, and the GINA pressing plate (42) is connected with the GINA pressing block (41) through the first fastener (43).

3. The lofting method of a steel shell pipe joint GINA waterstop and an OMEGA waterstop according to claim 1, characterized in that the second fixed component model (5) comprises a sleeve (51), an OMEGA pressing plate (52) and a second fastener (53), the sleeve (51) is arranged on the inner wall surface of one of the steel shell pipe joint models (1), the OMEGA pressing plate (52) is connected with the sleeve (51) through the second fastener (53), and one side of the OMEGA waterstop model (3) is clamped between the inner wall surface of the steel shell pipe joint model (1) and the OMEGA pressing plate (52).

4. The lofting method of steel-shell pipe joint GINA waterstop and OMEGA waterstop according to claim 1, characterized in that, in the step S3, the GINA waterstop model (2) and the OMEGA waterstop model (3) are assembled with reference to design drawings.

5. The lofting method of steel-shell pipe joint GINA waterstop and OMEGA waterstop according to claim 1, characterized in that, in the step S4, the first fixed component model (4) and the second fixed component model (5) are installed with reference to the design drawing.

6. The lofting method of steel-shell pipe joint GINA and OMEGA waterstops according to claim 1, characterized in that, in the step S4, the first fixing assembly models (4) are arranged at equal intervals along the circumference of the GINA waterstop model (2).

7. The lofting method of steel-shell pipe joint GINA waterstop and OMEGA waterstop according to claim 1, characterized in that, in the step S4, the second fixing component models (5) are arranged at equal intervals along the circumference of the steel-shell pipe joint model (1).

8. The method of lofting steel-shell pipe joint GINA waterstop and OMEGA waterstop of claim 1, further comprising: and S5, printing engineering drawings to guide field construction.

9. The lofting method for steel-shelled pipe joints GINA waterstops and OMEGA waterstops according to any one of claims 1 to 8, characterized in that in the step S1, the software is three-dimensional software.

10. The lofting method of steel-shell pipe joint GINA and OMEGA waterstops according to claim 1, characterized in that the positioning reference line is the center line of the end face of the steel-shell pipe joint model (1) at the end provided with the GINA waterstop model (2).

Background

In the construction of submarine tunnels, it is common to form an underwater tunnel by connecting individual steel shell pipe sections (sinking pipe sections).

The steel shell pipe joint is of a steel structure, cement is filled in the structure of the steel shell pipe joint, and a GINA water stop and an OMEGA water stop are arranged between each section of the steel shell pipe joint to form double-channel water resistance. The steel shell pipe joint is of a double-layer shell structure, the GINA water stop band is positioned between the vertical annular surfaces of two adjacent steel shell pipe joints, and the OMEGA water stop band is positioned on the inner annular surfaces of the two adjacent steel shell pipe joints. The GINA waterstop and the OMEGA waterstop are core components for water stopping of the steel pipe joints, one steel pipe joint is provided with a plurality of components for fixing the GINA waterstop and the OMEGA waterstop, the mounting precision control of the fixing components is critical, the final butt joint mounting of the steel shell pipe joints is directly influenced, and the water stopping effect of the steel shell pipe joints is influenced. And after the steel pipe coupling is installed with the fixed part, if the precision can not meet the requirement, rework is needed again, which increases the difficulty of construction, and the rework can lead to the extension of the construction period.

Therefore, a lofting method for steel shell pipe joints GINA waterstops and OMEGA waterstops is needed to solve the technical problem.

Disclosure of Invention

The invention aims to provide a lofting method for a steel shell pipe joint GINA water stop and an OMEGA water stop, which can reduce the construction difficulty, ensure the construction precision and shorten the construction time.

In order to achieve the purpose, the invention adopts the following technical scheme:

a lofting method for steel shell pipe joint GINA waterstops and OMEGA waterstops comprises the following steps:

s1, establishing a steel shell pipe joint model, a GINA water stop belt model, an OMEGA water stop belt model, a first fixing component model for fixing the GINA water stop belt and a second fixing component model for fixing the OMEGA water stop belt in software;

s2, determining a positioning reference line on the steel shell pipe joint model;

s3, lofting the GINA waterstop model, assembling the GINA waterstop model on an annular surface at one end of the steel shell pipe joint model by referring to the positioning datum line, and installing the OMEGA waterstop model between inner wall surfaces of two adjacent steel shell pipe joint models;

s4, mounting the first fixing component model on the annular surface of one end of the steel shell pipe joint model, and mounting two groups of second fixing component models on the inner wall surfaces of two adjacent steel shell pipe joint models respectively.

Further, the first fixed component model comprises a GINA pressing block, a GINA pressing plate and a first fastener, the GINA pressing block is arranged on the annular surface, and the GINA pressing plate is connected with the GINA pressing block through the first fastener.

Further, the second fixing component model comprises a sleeve, an OMEGA pressing plate and a second fastening piece, the sleeve is arranged on the inner wall surface of one of the steel shell pipe joint models, the OMEGA pressing plate is connected with the sleeve through the second fastening piece, and one side of the OMEGA waterstop model is clamped between the inner wall surface of the steel shell pipe joint model and the OMEGA pressing plate.

Further, in the step S3, the GINA and OMEGA waterstop models are assembled with reference to a design drawing.

Further, in the step S4, the first fixed component model and the second fixed component model are installed with reference to a design drawing.

Further, in the step S4, the first fixing member patterns are arranged at equal intervals in the circumferential direction of the GINA waterstop pattern.

Further, in the step S4, the second fixing assembly models are arranged at equal intervals in the circumferential direction of the steel shell pipe section model.

Further, still include: and S5, printing engineering drawings to guide field construction.

Further, in the step S1, the software is three-dimensional software.

Further, the positioning datum line is a central line of an end face of one end, provided with the GINA waterstop model, of the steel shell pipe joint model.

The invention has the beneficial effects that:

the invention relates to a lofting method of a steel shell pipe joint GINA waterstop and an OMEGA waterstop, which comprises the steps of establishing a steel shell pipe joint model, a GINA waterstop model, an OMEGA waterstop model, a first fixing component model for fixing the GINA waterstop and a second fixing component model for fixing the OMEGA waterstop in software, lofting the GINA waterstop model and the OMEGA waterstop model on the steel shell pipe joint according to a positioning reference line, and assembling the first fixing component model and the second fixing component model on the steel shell pipe joint. The whole installation link is simulated in software in advance, so that whether the first fixed component model and the second fixed component model are reasonably positioned or not can be judged in advance, the positions of the first fixed component model and the second fixed component model can be adjusted in the software, and the follow-up actual construction is helped. Through the mode, the construction difficulty can be reduced and the construction precision can be ensured in the actual construction, so that the reworking is avoided and the construction time is shortened.

Drawings

FIG. 1 is a cross-sectional view of the installation of a GINA and OMEGA waterstop model;

FIG. 2 is a schematic view of a first fixed component model;

fig. 3 is a schematic view of a second fixed component model.

In the figure:

1. a steel shell pipe joint model; 2. GINA waterstop model; 3. OMEGA waterstop model; 4. a first fixed component model; 41. g, pressing blocks of GINA; 42. a GINA pressing plate; 43. a first fastener; 5. a second fixed component model; 51. a sleeve; 52. an OMEGA press plate; 53. a second fastener.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; 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.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to reduce the construction difficulty, ensure the construction precision and shorten the construction time in the process of installing a submarine tunnel, the invention provides a lofting method of a steel shell pipe joint GINA water stop and an OMEGA water stop as shown in figures 1-3. The lofting method comprises the following steps:

s1, establishing a steel shell pipe joint model 1, a GINA water stop model 2, an OMEGA water stop model 3, a first fixing component model 4 for fixing the GINA water stop and a second fixing component model 5 for fixing the OMEGA water stop in software;

s2, determining a positioning reference line on the steel shell pipe joint model 1;

s3, lofting the GINA waterstop model 2, assembling the GINA waterstop model 2 on an annular surface at one end of the steel shell pipe joint model 1 by referring to a positioning datum line, and installing the OMEGA waterstop model 3 between inner wall surfaces of two adjacent steel shell pipe joint models 1;

s4, mounting the first fixed assembly model 4 on the annular surface of one end of the steel shell pipe joint model 1, and mounting the two groups of second fixed assembly models 5 on the inner wall surfaces of two adjacent steel shell pipe joint models 1 respectively.

The whole installation link is simulated in software in advance, so that whether the first fixed component model 4 and the second fixed component model 5 are reasonably positioned or not can be judged in advance, the positions of the first fixed component model 4 and the second fixed component model 5 can be adjusted in the software, and the follow-up actual construction is facilitated. Through the mode, the construction difficulty can be reduced and the construction precision can be ensured in the actual construction, so that the reworking is avoided and the construction time is shortened.

The first fixed component model 4 for fixing the GINA water stop and the second fixed component model 5 for fixing the OMEGA water stop appear in a component assembly form, so that the assembly is simplified, and when the first fixed component model 4 and the second fixed component model 5 are installed in software, the assembly can be moved as a whole, and the assembly efficiency is improved.

Further, still include: and S5, printing engineering drawings to guide field construction. Through generating new construction drawing, can adjust first fixed subassembly model 4 and the fixed subassembly model 5 of second according to virtual assembly to in actual work progress, construct according to the engineering drawing for the speed of construction.

Further, in step S1, the software is three-dimensional software, and specifically, the software may be a pore, SolidWorks, or CAD. The real sizes of the steel shell pipe joint, the GINA water stop, the OMEGA water stop, the first fixing component and the second fixing component in a construction site can be visually reflected by adopting three-dimensional software, so that the assembly of the GINA water stop and the OMEGA water stop is simulated in the software, and whether the installation poses of the first fixing component and the second fixing component are proper, whether the precision can meet the requirements, whether interference exists and the like can be observed in advance. Through the mode, the problem that reworking is caused due to the fact that the mounting accuracy of the first fixing component and the second fixing component cannot meet the requirement due to design errors can be effectively avoided. Thereby guaranteeing the construction efficiency and improving the construction quality.

Further, the positioning datum line is the central line of the end face of one end, provided with the GINA waterstop belt model 2, of the steel shell pipe joint model 1. Due to the symmetrical structure of the steel shell pipe joint, the central line of the end face of one end provided with the GINA water stop belt model 2 is adopted, so that the assembly of the GINA water stop belt model 2 and the OMEGA water stop belt model 3 on the steel shell pipe joint model 1 is conveniently guided, and the assembly difficulty is reduced.

Further, the first fixed component model 4 includes a GINA pressing block 41, a GINA pressing plate 42, and a first fastening member 43, the GINA pressing block 41 is disposed on the annular surface, and the GINA pressing plate 42 is connected to the GINA pressing block 41 by the first fastening member 43. Specifically, the first fixed component is provided with two sets of equal intervals on the annular surface, and the GINA waterstop model 2 is located between two sets of first fixed component models 4. Through the mode, the field installation of the GINA water stop can be truly simulated, so that problems possibly exist in the actual construction process according to virtual assembly inspection.

Further, the second fixing component model 5 comprises a sleeve 51, an OMEGA pressing plate 52 and a second fastening piece 53, the sleeve 51 is arranged on the inner wall surface of one of the steel shell pipe joint models 1, the OMEGA pressing plate 52 is connected with the sleeve 51 through the second fastening piece 53, and one side of the OMEGA water stop model 3 is clamped between the inner wall surface of the steel shell pipe joint model 1 and the OMEGA pressing plate 52. By the mode, the OMEGA water stop can be really installed on site, so that problems can exist in the actual construction process according to virtual assembly inspection.

Specifically, in step S4, the first fixed component models 4 are arranged at equal intervals in the circumferential direction of the GINA waterstop model 2. Through setting up first fixed subassembly model 4 into the aggregate in software, assemble as a whole for the speed of laying out promotes the efficiency of laying out.

Specifically, in step S4, the second fixing-assembly models 5 are arranged at equal intervals in the circumferential direction of the steel shell pipe section model 1. The second fixed component model 5 is set to be an aggregate in software, and the assembly is carried out as a whole, so that the lofting speed is increased, and the lofting efficiency is improved.

Further, in step S3, the GINA water stop model 2 and the OMEGA water stop model 3 are assembled with reference to the design drawing. By referring to a design drawing, virtual assembly can be carried out according to the design requirement, so that the requirement of actual construction is reflected.

Similarly, in step S4, the first fixed component model 4 and the second fixed component model 5 are mounted with reference to the design drawing. By referring to a design drawing, virtual assembly can be carried out according to the design requirement, so that the requirement of actual construction is reflected.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.