CN110005450B - Waterproof structure for subway station and shield tunnel interface and construction method - Google Patents
Waterproof structure for subway station and shield tunnel interface and construction method Download PDFInfo
- Publication number
- CN110005450B CN110005450B CN201910316319.8A CN201910316319A CN110005450B CN 110005450 B CN110005450 B CN 110005450B CN 201910316319 A CN201910316319 A CN 201910316319A CN 110005450 B CN110005450 B CN 110005450B
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- water
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- steel
- shield tunnel
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- 238000010276 construction Methods 0.000 title claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 188
- 239000010959 steel Substances 0.000 claims abstract description 188
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000003292 glue Substances 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 210000001503 joint Anatomy 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012954 risk control Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a waterproof structure of a subway station and shield tunnel interface, which comprises a water-stopping steel ring A, a water-stopping steel ring B, a water-stopping steel ring C and a water-stopping steel ring D, wherein the water-stopping steel ring A is embedded in a side wall of an end well, and the water-stopping steel ring A comprises a steel cylinder A and a steel ring A; the water-stopping steel ring B is of a circular flat plate structure and is coaxially arranged with the steel cylinder A, and is fixed on the inner wall of the steel cylinder A and extends into the ring beam; the water-stopping steel ring C is pre-buried on a segment of the shield tunnel, and comprises a steel ring body C and a steel cylinder body C; the water-stopping steel ring D is of a cylindrical structure and is coaxially arranged with the shield tunnel, one end of the water-stopping steel ring D is welded on one side, close to the ring beam, of the water-stopping steel ring C, and the water-stopping steel ring D is located in the ring beam. According to the invention, the water stop steel ring, the water stop glue and the grouting pipe are respectively arranged on the ring beam, the end well side wall and the ring beam and the shield tunnel, and meanwhile, the stainless steel water receiving groove is arranged at the joint, so that multiple waterproof effects are achieved.
Description
Technical Field
The invention belongs to the field of subway engineering, and particularly relates to a waterproof structure of a subway station and shield tunnel interface and a construction method.
Background
The subway underground station is of a strip-shaped frame structure, and a stress system is formed by arranging through-length longitudinal beams on the top plate, the middle plate and the bottom plate in combination with posts. The end well refers to a well constructed at one end of a shield entering and exiting during shield construction. The end well is not only a shield construction working well, but also a part of a house for subway station equipment. Because of the requirement of shield operation, the end well is generally deeper than the standard section of the station, and the common depth is more than 18 m.
In the subway engineering, the condition that the subway underground station is in butt joint with the shield tunnel is frequently met, the shield tunnel usually adopts precast concrete segments, and the subway station is in a cast-in-place concrete structure, so that the joint part is often a weak link of construction and water resistance, and a series of problems such as water leakage and cracking of the joint are easily caused.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a waterproof structure for the interface of a subway station and a shield tunnel and a construction method, and the waterproof structure can play a role in good waterproof effect by arranging a plurality of water stopping structures at joints.
In order to achieve the aim, according to one aspect of the invention, a waterproof structure for the interface of a subway station and a shield tunnel is provided, which is characterized by comprising a water stop steel ring A, a water stop steel ring B, a water stop steel ring C and a water stop steel ring D, wherein,
The water-stopping steel ring A is embedded in the end well side wall, the water-stopping steel ring A comprises a steel cylinder body A and a steel ring body A, the steel cylinder body A is coaxially arranged with the ring beam and is positioned at the joint of the ring beam and the end well side wall, the ring beam is arranged at one end of the shield tunnel close to the end well side wall and is coaxially arranged with the shield tunnel, the steel ring body A is of a circular flat plate structure and is coaxially arranged with the steel cylinder body A, and the steel ring body A is fixed on the outer wall of the steel cylinder body A and stretches into the end well side wall;
The water-stopping steel ring B is of a circular flat plate structure and is coaxially arranged with the steel cylinder A, and is fixed on the inner wall of the steel cylinder A and extends into the ring beam;
The water-stopping steel ring C is pre-buried on a segment of the shield tunnel, the water-stopping steel ring C comprises a steel ring body C and a steel cylinder body C, the steel ring body C is of a circular flat plate structure and is coaxially arranged with the shield tunnel, the steel ring body C is positioned at a joint of a ring beam and the segment of the shield tunnel, the steel cylinder body C is of a cylindrical structure and is coaxially arranged with the steel ring body C, and the steel cylinder body C is fixed on one side, close to the segment, of the steel ring body C and stretches into the segment of the shield tunnel;
The water-stopping steel ring D is of a cylindrical structure and is coaxially arranged with the shield tunnel, one end of the water-stopping steel ring D is welded on one side, close to the ring beam, of the water-stopping steel ring C, and the water-stopping steel ring D is located in the ring beam.
Preferably, the grouting device further comprises a grouting pipe A with one end extending into the annular beam, and the grouting pipe A is used for grouting towards the joint of the end well side wall and the annular beam.
Preferably, the grouting device further comprises a grouting pipe C with one end extending into the ring beam for grouting into the joint of the ring beam and the segment of the shield tunnel.
Preferably, the shield tunnel further comprises a stainless steel water receiving tank, wherein the stainless steel water receiving tank is arranged beside a joint of the ring beam and the primary segment of the shield tunnel.
Preferably, the joint of the water stop steel ring C and the duct piece is provided with water stop glue.
Preferably, the joint of the water stop steel ring A and the end well side wall is provided with water stop glue.
Preferably, the steel ring body a is provided with two and they are respectively located at both ends of the steel cylinder body a.
Preferably, the steel cylinder C is provided in two and they are located at the inner and outer edges of the steel ring body C, respectively.
According to another aspect of the invention, the construction method of the subway station and shield tunnel interface waterproof structure is further provided, and is characterized by comprising the following steps:
1) A water stop steel ring A is pre-embedded in the end well side wall of the subway station;
2) Pre-burying a water stop steel ring C at one side of a primary segment of the shield tunnel, which is close to the ring beam;
3) The method comprises the steps of welding a water-stop steel ring B with a water-stop steel ring A, welding a water-stop steel ring D with a water-stop steel ring C, arranging water-stop glue at the joint of the water-stop steel ring C and a pipe piece, arranging water-stop glue at the joint of the water-stop steel ring A and a tip well side wall, arranging a grouting pipe A for grouting towards the joint of the tip well side wall and a ring beam and arranging a grouting pipe C for grouting towards the joint of the ring beam and the pipe piece of a shield tunnel;
4) After the construction of the ring beam is completed, a stainless steel water receiving tank is arranged beside the joint of the ring beam and the segment of the shield tunnel.
Preferably, the water stop steel ring C is pre-buried when the primary segment is prefabricated.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1) The water-stopping steel ring A and the water-stopping steel ring B are arranged at the joint of the ring beam and the side wall of the end well, so that the effect of preventing outside pressure water from penetrating into the joint can be achieved, and the water-stopping steel ring C and the water-stopping steel ring D are arranged at the joint of the ring beam and the shield tunnel, so that the outside pressure water is prevented from penetrating into the joint, the waterproof effect is good, and the waterproof requirement of the shield tunnel and a subway station can be met;
2) The invention also provides a water stop glue and a grouting pipe, and a stainless steel water receiving tank is arranged at the joint, so that the multiple waterproof effect can be achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an enlarged schematic view of the junction of the ring beam with the shield tunnel and the end well side wall in the present invention;
FIG. 3 is a schematic diagram of the invention in which a water stopping steel ring B is welded on a water stopping steel ring A;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of the invention in which a water stopping steel ring D is welded to a water stopping steel ring C;
Fig. 6 is a cross-sectional view taken along line B-B in fig. 5.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 to 6, the waterproof structure of the interface between the subway station and the shield tunnel 7 comprises a water-stopping steel ring A1, a water-stopping steel ring B2, a water-stopping steel ring C3 and a water-stopping steel ring D4, wherein,
The water-stopping steel ring A1 is pre-buried in the end well side wall 9, the water-stopping steel ring A1 comprises a steel cylinder body A11 and a steel ring body A12, the steel cylinder body A11 is coaxially arranged with the ring beam 8 and is positioned at a joint of the ring beam 8 and the end well side wall 9, the ring beam 8 is arranged at one end of the shield tunnel 7 close to the end well side wall 9 and is coaxially arranged with the shield tunnel 7, the steel ring body A12 is of a circular flat plate structure and is coaxially arranged with the steel cylinder body A11, the steel ring body A12 is fixed on the outer wall of the steel cylinder body A11 and extends into the end well side wall 9, and the steel ring body A12 is equivalent to a steel sheet extending along the radial direction of the steel cylinder body A11; preferably, the steel ring body a12 is provided with two and they are respectively positioned at two ends of the steel cylinder body a11, so that water resistance can be performed from the two ends, and the steel ring body a12 can be integrally formed (by bending) with the steel cylinder body a11 or can be welded on the steel cylinder body a 11;
The water-stopping steel ring B2 is of a circular flat plate structure and is coaxially arranged with the steel cylinder A11, and the water-stopping steel ring B2 is fixed on the inner wall of the steel cylinder A11 and extends into the ring beam 8; the water-stopping steel ring B2 is equivalent to a steel sheet extending along the radial direction of the steel cylinder A11, and therefore, also extends along the radial direction of a joint of the end well side wall 9 and the ring beam 8, is coaxial with the steel ring A12 and the steel cylinder A11, and can realize water resistance on the outer side and the inner side of the steel cylinder A11 through the cooperation of the water-stopping steel ring B2 and the steel ring A11;
the water-stopping steel ring C3 is pre-buried on a segment 71 of the shield tunnel 7, the water-stopping steel ring C3 comprises a steel ring body C31 and a steel cylinder body C32, the steel ring body C31 is of a circular flat plate structure and is coaxially arranged with the shield tunnel 7, the steel ring body C31 is positioned at a joint of the ring beam 8 and the segment 71 of the shield tunnel 7, the steel cylinder body C32 is of a cylindrical structure and is coaxially arranged with the steel ring body C31, and the steel cylinder body C32 is fixed on one side, close to the segment 71, of the steel ring body C31 and extends into the segment 71 of the shield tunnel 7; the steel cylinder C32 extends along the segment 71 side of the shield tunnel 7; preferably, the steel cylinder body C32 is provided with two steel cylinder bodies and located at the inner edge and the outer edge of the steel ring body C31 respectively, and the steel cylinder body C32 and the steel ring body C31 can be integrally formed (through bending) or welded on the steel ring body C31;
The water-stopping steel ring D4 is of a cylindrical structure and is coaxially arranged with the shield tunnel 7, one end of the water-stopping steel ring D4 is welded to one side, close to the ring beam 8, of the water-stopping steel ring C3, and the water-stopping steel ring D4 is located in the ring beam 8. The water-stopping steel ring D4 and the steel cylinder body C32 are of cylindrical structures, are arranged perpendicular to the joint of the ring beam 8 and the duct piece 71 of the shield tunnel 7, and can be matched with the steel ring body C31 and the steel cylinder body C32 to realize water prevention at the joint.
Further, the invention also comprises a grouting pipe A6 with one end extending into the ring beam 8 for grouting towards the joint of the end well side wall 9 and the ring beam 8, and a grouting pipe C5 with one end extending into the ring beam 8 for grouting towards the joint of the ring beam 8 and the segment 71 of the shield tunnel 7. When water permeates into the joint, the joint can be plugged by injecting slurry, and the joint can be sealed by the method. The proper grouting time can be selected to perform grouting after the concrete curing is finished. The leak-off seam can also be made permanently sealed in this way.
Further, a stainless steel water receiving groove 72 is also included, and the stainless steel water receiving groove 72 is arranged beside the joint of the ring beam 8 and the primary segment 71 of the shield tunnel 7 so as to realize water receiving.
Further, a water stop glue 10 is arranged at the joint of the water stop steel ring C3 and the pipe piece 71, and the water stop glue 10 is arranged at the joint of the water stop steel ring A1 and the end well side wall 9.
The water stop steel rings, the water stop glue 10 and the grouting pipes are respectively arranged on the ring beam 8 and the end well side wall 9 and the ring beam 8 and the shield tunnel 7, and meanwhile, the stainless steel water receiving grooves 72 are arranged at the joints, so that multiple waterproof effects are achieved.
According to another aspect of the invention, the construction method of the waterproof structure of the interface between the subway station and the shield tunnel 7 is also provided, and comprises the following steps:
1) A water stop steel ring A1 is pre-buried in an end well side wall 9 of the subway station;
2) Pre-burying a water stop steel ring C3 at one side of the primary segment 71 of the shield tunnel 7 close to the ring beam 8; the water stop steel ring C3 is pre-buried when the primary segment 71 is prefabricated;
3) The water stop steel ring B2 is welded with the water stop steel ring A1, the water stop steel ring D4 is welded with the water stop steel ring C3, meanwhile, water stop glue 10 is arranged at the joint of the water stop steel ring C3 and the pipe piece 71, the water stop glue 10 is arranged at the joint of the water stop steel ring A1 and the end well side wall 9, and a grouting pipe A6 for grouting towards the joint of the end well side wall 9 and the ring beam 8 and a grouting pipe C5 for grouting towards the joint of the ring beam 8 and the pipe piece 71 of the shield tunnel 7 are arranged;
4) After the construction of the ring beam 8 is completed, a stainless steel water receiving groove 72 is arranged beside the joint of the ring beam 8 and the segment 71 of the shield tunnel 7.
The invention provides a novel waterproof structure for a station and shield tunnel 7 interface, which well solves the problems of water leakage and the like of the interface in the traditional method, and has the advantages of reliable quality, convenience in construction, safety and economy. The method has good effects on planning, mature construction and risk control, and is simple and easy to implement.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The waterproof structure of the interface between the subway station and the shield tunnel is characterized by comprising a water-stopping steel ring A, a water-stopping steel ring B, a water-stopping steel ring C and a water-stopping steel ring D, wherein,
The water-stopping steel ring A is embedded in the end well side wall, the water-stopping steel ring A comprises a steel cylinder body A and a steel ring body A, the steel cylinder body A is coaxially arranged with the ring beam and is positioned at the joint of the ring beam and the end well side wall, the ring beam is arranged at one end of the shield tunnel close to the end well side wall and is coaxially arranged with the shield tunnel, the steel ring body A is of a circular flat plate structure and is coaxially arranged with the steel cylinder body A, and the steel ring body A is fixed on the outer wall of the steel cylinder body A and stretches into the end well side wall;
The water-stopping steel ring B is of a circular flat plate structure and is coaxially arranged with the steel cylinder A, and is fixed on the inner wall of the steel cylinder A and extends into the ring beam;
The water-stopping steel ring C is pre-buried on a segment of the shield tunnel, the water-stopping steel ring C comprises a steel ring body C and a steel cylinder body C, the steel ring body C is of a circular flat plate structure and is coaxially arranged with the shield tunnel, the steel ring body C is positioned at a joint of a ring beam and the segment of the shield tunnel, the steel cylinder body C is of a cylindrical structure and is coaxially arranged with the steel ring body C, and the steel cylinder body C is fixed on one side, close to the segment, of the steel ring body C and stretches into the segment of the shield tunnel;
The water-stopping steel ring D is of a cylindrical structure and is coaxially arranged with the shield tunnel, one end of the water-stopping steel ring D is welded on one side, close to the ring beam, of the water-stopping steel ring C, and the water-stopping steel ring D is positioned in the ring beam;
The steel ring body A is provided with two steel ring bodies and is respectively positioned at two ends of the steel cylinder body A;
The steel cylinder C is provided with two and they are located at the inner and outer edges of the steel ring body C, respectively.
2. The waterproof structure of the subway station and shield tunnel interface according to claim 1, further comprising a grouting pipe A with one end extending into the ring beam for grouting into a joint of the end well side wall and the ring beam.
3. The waterproof structure of the subway station and shield tunnel interface according to claim 1, further comprising a grouting pipe C with one end extending into the ring beam for grouting into the joint of the ring beam and the segment of the shield tunnel.
4. The waterproof structure of a subway station and shield tunnel interface according to claim 1, further comprising a stainless steel water receiving tank, wherein the stainless steel water receiving tank is arranged beside a joint of the ring beam and a primary segment of the shield tunnel.
5. The waterproof structure of the subway station and shield tunnel interface according to claim 1, wherein water stop glue is arranged at the joint of the water stop steel ring C and the duct piece.
6. The waterproof structure of the subway station and shield tunnel interface according to claim 1, wherein water stop glue is arranged at the joint of the water stop steel ring A and the end well side wall.
7. The construction method of the subway station and shield tunnel interface waterproof structure according to any one of claims 1 to 6, which is characterized by comprising the following steps:
1) A water stop steel ring A is pre-embedded in the end well side wall of the subway station;
2) Pre-burying a water stop steel ring C at one side of a primary segment of the shield tunnel, which is close to the ring beam;
3) The method comprises the steps of welding a water-stop steel ring B with a water-stop steel ring A, welding a water-stop steel ring D with a water-stop steel ring C, arranging water-stop glue at the joint of the water-stop steel ring C and a pipe piece, arranging water-stop glue at the joint of the water-stop steel ring A and a tip well side wall, arranging a grouting pipe A for grouting towards the joint of the tip well side wall and a ring beam and arranging a grouting pipe C for grouting towards the joint of the ring beam and the pipe piece of a shield tunnel;
4) After the construction of the ring beam is completed, a stainless steel water receiving tank is arranged beside the joint of the ring beam and the segment of the shield tunnel.
8. The construction method according to claim 7, wherein the water stop steel ring C is pre-buried when the primary segment is prefabricated.
Priority Applications (1)
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| CN201910316319.8A CN110005450B (en) | 2019-04-19 | 2019-04-19 | Waterproof structure for subway station and shield tunnel interface and construction method |
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| CN201910316319.8A CN110005450B (en) | 2019-04-19 | 2019-04-19 | Waterproof structure for subway station and shield tunnel interface and construction method |
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| CN110005450B true CN110005450B (en) | 2024-05-03 |
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| CN113389225A (en) * | 2021-05-18 | 2021-09-14 | 中铁五局集团有限公司 | Waterproof structure of side wall and tunnel in subway main structure |
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| Title |
|---|
| 盾构隧道管片钢环加固技术;胡俊楠;;铁道建筑技术;20150320(03);全文 * |
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| Publication number | Publication date |
|---|---|
| CN110005450A (en) | 2019-07-12 |
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