CN216381425U - Single line tunnel invert filling surface infiltration processing system - Google Patents
Single line tunnel invert filling surface infiltration processing system Download PDFInfo
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- CN216381425U CN216381425U CN202123279075.2U CN202123279075U CN216381425U CN 216381425 U CN216381425 U CN 216381425U CN 202123279075 U CN202123279075 U CN 202123279075U CN 216381425 U CN216381425 U CN 216381425U
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- drain pipe
- filling surface
- water seepage
- inverted arch
- line tunnel
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Abstract
The utility model relates to the technical field of tunnel construction, in particular to a single-line tunnel inverted arch filling surface water seepage treatment system. The utility model provides a single line tunnel invert filling face infiltration processing system, the ditch bottom of invert filling face one side bores and is equipped with the step-down hole, is equipped with the drain pipe in the step-down hole, and the bottom parcel of drain pipe has the non-woven fabrics, and the end cap shutoff is passed through on the top of drain pipe, and in the ditch was arranged in on the upper portion of drain pipe, seted up the outlet on the upper portion lateral wall of drain pipe, on the upper portion of drain pipe was fixed in the ditch lateral wall through the staple bolt, the seam crossing in drain pipe and step-down hole was filled epoxy mortar, and epoxy mortar's upper surface brush has epoxy. The single-line tunnel inverted arch filling surface water seepage treatment system provided by the utility model can reasonably deepen the drilling depth of the depressurization hole, reduce the water seepage pressure of the water seepage position of the filling surface, effectively solve the water seepage problem under the condition of protecting the integrity of the inverted arch filling surface, and meanwhile, reasonably arrange the PVC drain pipe to drain the underground pressure water.
Description
Technical Field
The utility model relates to the technical field of tunnel construction, in particular to a single-line tunnel inverted arch filling surface water seepage treatment system.
Background
The design of water prevention and drainage of the tunnel adopts the principle of 'prevention, drainage, interception and blockage combination, and comprehensive treatment according to local conditions'; for the section where underground water is developed and the tunnel construction may have adverse effect on the ecological environment or the engineering environment, the principle of 'mainly blocking and limited discharge' is adopted to achieve the purposes of effective water blocking, reliable water prevention, economy and reasonability. When the principle of 'blocking is taken as the main principle' is adopted, the lining structure is reasonably considered to bear partial water pressure and is properly strengthened according to the water blocking effect, the water drainage state and measures. When the water-rich section single-line tunnel ditch cable groove and the leveling layer are finished, the water seepage treatment of the inverted arch filling surface is realized, the treatment difficulty is high, and the cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of high treatment difficulty and high cost of the water seepage treatment of the inverted arch filling surface when the water-rich section single-line tunnel ditch cable trough and the leveling layer are finished, the utility model provides the water seepage treatment system of the inverted arch filling surface of the single-line tunnel, which utilizes the principle of drilling, draining and depressurizing to effectively solve the water seepage problem of the inverted arch filling surface under the condition of ensuring the complete structure of the inverted arch filling surface, and has the advantages of high drilling efficiency, simple equipment and strong operability.
The technical scheme adopted by the utility model for realizing the purpose is as follows: the utility model provides a single line tunnel invert packing surface infiltration processing system, the ditch bottom of invert packing surface one side bores and is equipped with the step-down hole, the downthehole drain pipe that is equipped with of step-down, the bottom parcel of drain pipe has the non-woven fabrics, and the end cap shutoff is passed through on the top of drain pipe, has seted up the outlet on the upper portion lateral wall of drain pipe, the upper portion of drain pipe is arranged in the ditch and is fixed in on the ditch lateral wall through the staple bolt, the seam crossing in drain pipe and step-down hole has been poured into epoxy mortar, and epoxy mortar's upper surface brush has epoxy.
Furthermore, the drilling direction of the pressure reducing holes is vertical downward, the aperture of the pressure reducing holes is 12cm, and the drilling depth of the pressure reducing holes exceeds 50cm of the bottom of the tunnel inverted arch.
Furthermore, the drilling positions of the pressure reduction holes are staggered with adjacent primary building circumferential construction joints, and the distance between the pressure reduction holes and the primary building circumferential construction joints of the grooves is larger than 1 m.
Furthermore, the upper part of the drain pipe is fixed through a hoop with an expansion bolt.
Furthermore, the embedding depth of the lower part of the drain pipe is 1m, and the outer leakage end of the upper part of the drain pipe is 25-30cm higher than the water passing section of the ditch.
Further, the width of the water outlet is 50mm, and the height of the water outlet is 100 mm.
Further, the diameter of the drain pipe is 100 mm.
Furthermore, the drain pipe is a PVC pipe.
Furthermore, the plug is a PVC plug corresponding to the type of the drain pipe.
The utility model has the technical effects and advantages that: according to the single-line tunnel inverted arch filling surface water seepage treatment system, the drilling depth of the pressure reduction holes is reasonably deepened, the water seepage pressure of the water seepage position of the filling surface is reduced, the water seepage problem is effectively solved under the condition that the filling surface of the inverted arch is protected to be complete, and meanwhile, the PVC drainage pipes are reasonably arranged to conduct drainage on underground pressure water;
the pipe head of the drain pipe is sealed by a PVC plug of a corresponding type, so that water flow in the drain pipe is prevented from flushing a ditch cover plate;
the waterstop structures are arranged in the adjacent primary building annular construction joints, so that the drilling positions of the pressure reducing holes are staggered from the positions of the adjacent primary building annular construction joints, and the waterstop structures at the construction joint positions can be prevented from being damaged;
the annular construction joint exists between adjacent pouring sections of the groove, the thickness of the side wall of the groove is generally thin, vibration exists in the drilling process, and if the distance between the side wall of the groove and the initial groove building annular construction joint is too close, the risk of damaging the structure exists, so that the distance between the initial groove building annular construction joint and the initial groove building annular construction joint is larger than 1 m.
Drawings
FIG. 1 is a schematic cross-sectional view of an inverted arch filling surface water seepage treatment system for a single-line tunnel according to the present invention;
FIG. 2 is a schematic view of A in FIG. 1;
FIG. 3 is a schematic longitudinal section view of FIG. 1;
wherein: 1-inverted arch filling surface, 2-ditch, 3-ditch cover plate, 4-drain pipe, 5-drain opening, 6-plug, 7-hoop, 8-ditch side wall, 9-ditch water cross section, 10-pressure reducing hole, 11-adjacent primary building annular construction joint and 12-ditch primary building annular construction joint.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Example (b):
as shown in figures 1-3, a single-line tunnel invert filling surface water seepage treatment system is characterized in that a pressure reducing hole 10 is drilled at the bottom of a ditch 2 on one side of an invert filling surface 1, the drilling direction of the pressure reducing hole 10 is vertical downward, the aperture of the pressure reducing hole 10 is 12cm, the drilling depth of the pressure reducing hole 10 exceeds 50cm of the bottom of the invert of a tunnel, the drilling position of the pressure reducing hole 10 is staggered with an adjacent primary building annular construction joint 11, the distance between the drilling position and a groove primary building annular construction joint 12 is more than 1m, a drain pipe 4 is arranged in the pressure reducing hole 10, the drain pipe 4 is a PVC pipe, the diameter of the drain pipe 4 is 100mm, the bottom end of the drain pipe 4 is wrapped with non-woven fabric, the top end of the drain pipe 4 is plugged by a plug 6, the plug 6 is PVC corresponding to the type of the drain pipe 4, a drain opening 5 is arranged on the upper side wall of the drain pipe 4, the width of the drain opening 5 is 50mm and the height is 100mm, the upper part of the drain pipe 4 is arranged in the ditch 2 and is fixed on the side wall 8 of the ditch by a hoop 7, the hoop 7 is a hoop with expansion bolts, the embedding depth of the lower part of the drain pipe 4 is 1m, the outer leakage end of the upper part of the drain pipe 4 is 925-30 cm higher than the water cross section of the ditch, the joint of the drain pipe 4 and the pressure reduction hole 10 is filled with epoxy mortar, and the upper surface of the epoxy mortar is coated with epoxy resin.
The construction method of the system comprises the following steps:
the first step is as follows: according to the water seepage mileage position of the filling surface of the inverted arch, determining the drilling position, wherein the drilling position is required to stagger adjacent primary building annular construction joints 11, the distance between the drilling position and a groove primary building annular construction joint 12 is more than 1m, a pressure reducing hole 10 with the diameter of 120 is vertically drilled in a ditch 2, the drilling depth is required to drill through inverted arch concrete and penetrate into surrounding rock, and the depth of the vertical pressure reducing hole 10 is controlled according to the depth of embedded surrounding rock of 0.5 m;
the second step is that: a PVC drain pipe 4 is arranged in the depressurization hole 10, the lower part of the drain pipe 4 is embedded to a depth of more than 1m, the upper part of the drain pipe is 930 cm higher than the water passing section of the ditch, and the bottom end of the drain pipe 4 is wrapped by non-woven fabrics;
the third step: the upper part of the drain pipe 4 is fixed on the side wall 8 of the ditch through a holding hammer 7 with an expansion bolt;
the fourth step: after the drain pipe 4 is finished, pouring epoxy mortar along the seam between the drain pipe 4 and the pressure reduction hole 10 and compacting, and after the epoxy mortar is solidified, coating epoxy resin on the upper surface of the epoxy mortar along the seam;
the fifth step: the top end of the drain pipe 4 is sealed by a PVC plug 6 with a corresponding model, so that water flow is prevented from directly impacting the ditch cover plate 3, and a water outlet 5 is formed in the side wall of the upper part of the drain pipe 4.
While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a single line tunnel invert filling surface infiltration processing system which characterized in that: the ditch bottom of invert packing face one side bores and is equipped with the step-down hole, the downthehole drain pipe that is equipped with of step-down, the bottom parcel of drain pipe has the non-woven fabrics, and the end cap shutoff is passed through on the top of drain pipe, has seted up the outlet on the upper portion lateral wall of drain pipe, the upper portion of drain pipe is arranged in the ditch and is fixed in on the ditch lateral wall through the staple bolt, the seam crossing of drain pipe and step-down hole has been filled epoxy mortar, and epoxy mortar's upper surface brush has epoxy.
2. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 1, wherein: the drilling direction of the pressure reducing holes is vertical downward, the aperture of the pressure reducing holes is 12cm, and the drilling depth of the pressure reducing holes exceeds 50cm of the bottom of the tunnel inverted arch.
3. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 1, wherein: and the drilling positions of the pressure reduction holes are staggered with adjacent primary building annular construction joints, and the distance between the pressure reduction holes and the primary building annular construction joints of the grooves is greater than 1 m.
4. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 1, wherein: the upper part of the drain pipe is fixed through a hoop with an expansion bolt.
5. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 1, wherein: the embedding depth of the lower part of the drain pipe is 1m, and the outer leakage end of the upper part of the drain pipe is 25-30cm higher than the water passing section of the ditch.
6. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 1, wherein: the width of the water outlet is 50mm, and the height of the water outlet is 100 mm.
7. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 1, wherein: the diameter of the drain pipe is 100 mm.
8. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 1, wherein: the drain pipe is a PVC pipe.
9. The single-line tunnel inverted arch filling surface water seepage treatment system as claimed in claim 8, wherein: the plug is a PVC plug corresponding to the type of the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123279075.2U CN216381425U (en) | 2021-12-24 | 2021-12-24 | Single line tunnel invert filling surface infiltration processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123279075.2U CN216381425U (en) | 2021-12-24 | 2021-12-24 | Single line tunnel invert filling surface infiltration processing system |
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| Publication Number | Publication Date |
|---|---|
| CN216381425U true CN216381425U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123279075.2U Active CN216381425U (en) | 2021-12-24 | 2021-12-24 | Single line tunnel invert filling surface infiltration processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220701A (en) * | 2023-05-09 | 2023-06-06 | 中交第一航务工程局有限公司 | Newly built tunnel and existing tunnel reconstruction and extension parallel construction method |
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2021
- 2021-12-24 CN CN202123279075.2U patent/CN216381425U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116220701A (en) * | 2023-05-09 | 2023-06-06 | 中交第一航务工程局有限公司 | Newly built tunnel and existing tunnel reconstruction and extension parallel construction method |
| CN116220701B (en) * | 2023-05-09 | 2023-08-01 | 中交第一航务工程局有限公司 | Newly built tunnel and existing tunnel reconstruction and extension parallel construction method |
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