Special-shaped water receiving box for junction of different arched tunnels

Abstract

The utility model relates to the technical field of arrangement or structure of foundation structure joints, and discloses a special-shaped water receiving box used at the junction of different arched tunnels, which is arranged at the position of a deformation joint at the junction of two different arched tunnels, and vaults of the two tunnels are respectively marked as a high vault and a low vault. The water receiving box is a stainless steel groove with a rectangular cross section and an opening facing the deformation joint, the part, located between the high vault and the low vault, of the water receiving box is marked as a transition section, the other part of the water receiving box is marked as a conventional section, and in two side plates of the transition section of the water receiving box, the side plate fixed to the high vault is marked as a variable side plate. And the height of the variable side plate is the sum of the depth of the mounting groove and the staggered distance between the high vault and the low vault at different positions. According to the water receiving box, the structure of the water receiving box is changed, one side plate of the transition section is changed into a spliced structure from an integrally-formed structure, the shape and the size of the side plate are adjusted according to the staggered distance of the left side and the right side of the deformation joint, and therefore it is guaranteed that the water receiving box can be smoothly installed.

Description

Technical Field

[0001] The utility model relates to the technical field of arrangement or structure of foundation structure joints, in particular to a special-shaped water receiving box used at the junction of different arched tunnels. Background Art

[0002] There are expansion joints at the tunnel connection points, and unlike the expansion joints of ground buildings, the expansion joints in the tunnel have obvious water seepage, so a water collection box is needed to receive the seepage and drain the seeped water.

[0003] The water receiving box is usually a long groove formed by bending a stainless steel plate and buckled on the expansion joint. This means that the tunnels on the left and right sides of the expansion joint must be flush. If they are not flush, the water receiving box cannot be buckled at all. Therefore, before installing the water receiving box, it is necessary to chisel the left and right sides of the expansion joint to create a shallow groove for installing the water receiving box, so that the water receiving box can be flush with the inner wall of the tunnel after installation, and at the same time ensure that the left and right sides of the expansion joint are flush.

[0004] Normally, the tunnels on both sides of the expansion joint will be offset by a few millimeters, and this offset distance will naturally be smoothed out after the shallow groove is chiseled out. However, in some special cases, the tunnels on both sides of the expansion joint will be offset by a large distance. For example, the tunnels on both sides are constructed by different construction units, and these two construction units use different arch forms according to their existing construction materials, which will cause the arches of the tunnels on both sides of the expansion joint to be offset by a large distance. When the offset distance reaches a certain extent, it cannot be compensated by chiseling. Taking the construction project involved in the utility model as an example, the C entrance and exit of Beitaipingzhuang Station is divided by the expansion joint. The straight section of the passage is constructed by the inventor's unit, and the climbing exit section is built by a research unit. The two units used different arches. After docking, it was found that there was a height difference of 1.1 meters in the palace roof. Utility Model Content

[0005] The utility model provides a special-shaped water receiving box used at the junction of different arched tunnels.

[0006] The technical problem to be solved is: at the junction of different arch tunnels, the left and right sides of the deformation joint are offset by a large distance, and a conventional water collection box cannot be installed.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions: a special-shaped water receiving box used at the junction of different arched tunnels, which is arranged at the deformation joint position at the junction of two different arched tunnels, and the higher arch of the two tunnels is recorded as the high arch, and the lower arch is recorded as the low arch;

[0008] The water receiving box is a stainless steel trough with a rectangular cross section and an opening facing the deformation joint. The tops of the left and right side plates of the stainless steel trough are provided with folded edges which are away from the stainless steel trough and parallel to the bottom of the stainless steel trough. The two folded edges are respectively attached and fixed to the high arch and the low arch.

[0009] The portion of the water receiving box between the high arch and the low arch is recorded as a gradient section, and the rest is recorded as a regular section. The installation groove is a groove with a rectangular cross section, and is divided into two left and right parts that are staggered from each other in the gradient section.

[0010] Of the two side plates of the gradient section of the water receiving box, the side plate fixed on the high arch is referred to as a variable side plate, and the height of the variable side plate is the depth of the installation groove plus the staggered spacing between the high arch and the low arch at different positions.

[0011] Furthermore, the conventional section is formed by bending a stainless steel plate, the gradient section is formed by splicing stainless steel plates, and the variable side plate is cut from a stainless steel plate, and then connected to the bottom of the groove and the folded edge of the variable side plate by welding, and the weld is sealed.

[0012] Furthermore, the high arch and the low arch overlap in the middle and are gradually staggered on both sides. On the cross section of the tunnel, the part between the high arch and the low arch is recorded as the side panel surveying surface, the outer edge line of the side panel surveying surface is recorded as the line to be expanded, the depth of the installation groove is recorded as h, and the side panel surveying surface becomes the panel surface of the variable side panel after the line to be expanded is offset outward by h.

[0013] Furthermore, the opening of the deformation joint and the outside of the folded edge of the side plate of the water receiving box are sealed with sealant.

[0014] Furthermore, an isolation film is laid at the bottom of the sealant of the deformation joint to prevent the sealant from excessively penetrating into the deformation joint, and both sides of the sealant are in direct contact with the high arch and the low arch without the liner plate.

[0015] Furthermore, the folded edge of the side plate of the water receiving box is fixed to the bottom of the installation groove by expansion bolts, and the expansion bolts are completely covered by sealant.

[0016] Compared with the prior art, the special-shaped water receiving box used for the junction of different arched tunnels has the following beneficial effects:

[0017] In the utility model, by changing the structure of the water receiving box, a side panel of the gradient section is changed from an integrally formed structure to a spliced ​​structure, and the shape and size of the side panel are adjusted according to the staggered distance on the left and right sides of the deformation joint, ensuring that the bottom of the water receiving box is flush with the lower arch, thereby overcoming the adverse effects of the water receiving box installation caused by the docking of tunnels with different arch forms, and ensuring that the water receiving box can be smoothly installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the position of a special-shaped water receiving box used at the junction of different arched tunnels in the utility model;

[0019] Figure 2 for Figure 1 Cross-section at the AA position;

[0020] Figure 3 for Figure 1 Cross-section at the mid-BB position;

[0021] Figure 4 This is a schematic diagram of the shape of the variable side panel. Note that the variable side panel here is formed by expanding the outline of the high arch.

[0022] In the figure, 1-high arch, 2-low arch, 3-deformation joint, 4-sealant, 5-gradient section, 51-variable side panel, 6-conventional section, 7-installation groove. DETAILED DESCRIPTION

[0023] Take the C entrance and exit tunnel of Beijing Subway Line 19 Beitaipingzhuang Station as an example. Figure 1-3 As shown, a special-shaped water receiving box used at the junction of different arched tunnels is arranged at the position of a deformation joint 3 at the junction of two different arched tunnels. Among the arches of the two tunnels, the higher arch is recorded as a high arch 1, and the lower arch is recorded as a low arch 2;

[0024] The form of the tunnel vault is determined by the corresponding construction materials held by the construction party. Its size can be adjusted according to demand, but the curvature is difficult to adjust, so the following may occur: Figure 1 In this way, the highest points on both sides are the same height, but they cannot completely overlap.

[0025] The water receiving box is a stainless steel trough with a rectangular cross section and an opening facing the deformation joint 3. The tops of the left and right side plates of the stainless steel trough are provided with folded edges which are away from the stainless steel trough and parallel to the bottom of the stainless steel trough. The two folded edges are respectively attached and fixed to the high arch 1 and the low arch 2.

[0026] Most of the water collection boxes here are consistent with the conventional water collection boxes, but some of their structures and installation methods have been changed, as follows:

[0027] The portion of the water collecting box between the high arch 1 and the low arch 2 is recorded as the gradient section 5, and the remaining portion is recorded as the conventional section 6. The installation groove 7 is a groove with a rectangular cross-section, and is divided into two staggered left and right parts in the gradient section 5; here, the installation groove 7 is no longer chiseled as an integral groove with a completely flat bottom like in a conventional water collecting box, but is divided into two left and right parts with the deformation joint 3 as the center. Both sides only need to meet the depth requirements and do not need to be flush.

[0028] Of the two side plates of the gradient section 5 of the water receiving box, the side plate fixed on the high arch 1 is recorded as a variable side plate 51, and the height of the variable side plate 51 is the depth of the installation groove 7 plus the staggered spacing of the high arch 1 and the low arch 2 at different positions. The staggered spacing here refers to the shortest distance between the two lines representing the inner wall of the high arch 1 and the inner wall of the low arch 2 on the cross section of the deformation joint 3. Note that the staggered spacing at different positions is different.

[0029] The conventional section 6 is formed by bending a stainless steel plate, the gradient section 5 is formed by assembling a stainless steel plate, and the variable side plate 51 is cut from a stainless steel plate, and then welded to the bottom of the groove and the folded edge of the variable side plate 51, and the weld is sealed. Note that the weld here must be leak-proof. It can be fully welded and leak-checked, or spot welded and sealed with glue at the joint. Of course, other connection methods are also possible, as long as the connection position can be ensured to be leak-proof. It would be best if the processing could be done in an integrated molding manner, but it is found to be quite difficult in actual operation.

[0030] The high arch 1 and the low arch 2 overlap in the middle and gradually stagger on both sides, such as Figure 4 As shown, on the cross section of the tunnel, the portion between the high arch 1 and the low arch 2 is recorded as the side panel surveying surface, the outer edge line of the side panel surveying surface is recorded as the line to be expanded, the depth of the installation groove 7 is recorded as h, and the side panel surveying surface becomes the panel surface of the variable side panel 51 after the line to be expanded is offset outward by h.

[0031] The spacing between the high arch 1 and the low arch 2 at different positions is different, so it is difficult to measure it by measuring the dimensions on site. You can directly draw the pattern of the staggered positions between them, and then expand it a little to get the variable side plate 51. This part can even be done with AutoCAD, draw the outline of the two parts, take the upper edge of the pattern between the two parts, use the offset function to offset a distance, and enclose it with the lower edge as a whole.

[0032] The opening of the deformation joint 3 and the outer folding edge of the side plate of the water receiving box are sealed with sealant 4. This ensures that the water in the water receiving box is completely discharged instead of leaking into the tunnel.

[0033] The bottom of the sealant 4 of the expansion joint 3 is covered with an isolation film to prevent the sealant 4 from excessively penetrating into the expansion joint 3, and the two sides of the sealant 4 are in direct contact with the high arch 1 and the low arch 2 without the backing plate. The expansion joint 3 is very deep. If an isolation film is not set here, a large amount of glue needs to be injected into it to ensure that the opening of the expansion joint 3 is blocked. The isolation film here can also be replaced with fillers such as waste paper balls and waste plastic cloth balls. There are backing plates on the left and right sides of the expansion joint 3. If this backing plate is not removed, the sealant 4 cannot directly contact the concrete on both sides, and the sealing effect will be greatly reduced.

[0034] The folded edge of the side plate of the water receiving box is fixed to the bottom of the installation groove 7 by means of expansion bolts, and the expansion bolts are completely covered by the sealant 4.

[0035] The utility model discloses a special-shaped water receiving box used at the junction of different arched tunnels, and the construction method thereof comprises the following steps:

[0036] Step 1: Chisel out the installation groove 7, remove the liner plate at the opening of the deformation joint 3, and clean the gap of the deformation joint 3 with a wire brush and high-pressure air, and then install the isolation film and sealant 4 in the deformation joint 3;

[0037] Step 2: On-site measurement and cutting out the variable side plate 51 according to the measurement results, and then processing it into a water receiving box;

[0038] Step 3: Install the water collection box and seal it with glue.

[0039] The embodiments described above are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A special-shaped water receiving box used at the junction of different arched tunnels, characterized by: It comprises a mounting groove (7), wherein the water receiving box is arranged at a deformation joint (3) at the junction of two different arched tunnels, and the higher arch of the two tunnels is recorded as a high arch (1), and the lower arch is recorded as a low arch (2); The water receiving box is a stainless steel trough with a rectangular cross section and an opening facing the deformation joint (3). The tops of the left and right side plates of the stainless steel trough are provided with folded edges which are away from the stainless steel trough and parallel to the bottom of the stainless steel trough. The two folded edges are respectively attached to and fixed on the high arch (1) and the low arch (2). The portion of the water receiving box located between the high arch (1) and the low arch (2) is recorded as a gradient section (5), and the remaining portion is recorded as a conventional section (6); the installation groove (7) is a groove with a rectangular cross section, and is divided into two left and right parts that are staggered from each other in the gradient section (5); Of the two side plates of the gradient section (5) of the water receiving box, the side plate fixed on the high arch (1) is referred to as a variable side plate (51), and the height of the variable side plate (51) is the depth of the mounting groove (7) plus the spacing between the high arch (1) and the low arch (2) at different positions.

2. The special-shaped water receiving box used at the junction of different arched tunnels according to claim 1, characterized in that: The conventional section (6) is formed by bending a stainless steel plate, the gradient section (5) is formed by splicing stainless steel plates, and the variable side plate (51) is cut from a stainless steel plate, and then connected to the bottom of the groove and the folded edge of the variable side plate (51) by welding, and the weld is sealed.

3. The special-shaped water receiving box used at the junction of different arched tunnels according to claim 2, characterized in that: The high arch (1) and the low arch (2) overlap in the middle and gradually stagger on both sides. On the cross section of the tunnel, the portion between the high arch (1) and the low arch (2) is recorded as the side plate surveying surface, the outer edge line of the side plate surveying surface is recorded as the line to be expanded, the groove depth of the installation groove (7) is recorded as h, and the side plate surveying surface becomes the plate surface of the variable side plate (51) after the line to be expanded is offset outward by h.

4. The special-shaped water receiving box used at the junction of different arched tunnels according to claim 1, characterized in that: The opening of the deformation joint (3) and the outside of the folded edge of the side plate of the water receiving box are sealed with sealant (4).

5. The special-shaped water receiving box used at the junction of different arched tunnels according to claim 4, characterized in that: The bottom of the sealant (4) of the deformation joint (3) is paved with an isolation film for preventing the sealant (4) from excessively penetrating into the deformation joint (3), and both sides of the sealant (4) are in direct contact with the high arch (1) and the low arch (2) without the liner plate.

6. The special-shaped water receiving box used at the junction of different arched tunnels according to claim 4, characterized in that: The folded edge of the water receiving box side plate is fixed to the bottom of the installation groove (7) by means of expansion bolts, and the expansion bolts are completely covered by the sealant (4).

Images