CN111878126B - Combined water stop system for hole outlet of pipe jacking well - Google Patents
Combined water stop system for hole outlet of pipe jacking well Download PDFInfo
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- CN111878126B CN111878126B CN202010783191.9A CN202010783191A CN111878126B CN 111878126 B CN111878126 B CN 111878126B CN 202010783191 A CN202010783191 A CN 202010783191A CN 111878126 B CN111878126 B CN 111878126B
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- wall
- well
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000004429 Calibre Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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Classifications
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- 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
- 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
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a combined water stopping system for a pipe jacking well to go out of a hole.A wall-penetrating large-caliber sleeve is arranged in a hole opening of the pipe jacking well and is embedded and fixed with concrete of a well wall through a circumferentially arranged triangular rib plate; the wall-penetrating small-caliber sleeve is sleeved on the large-caliber sleeve and extends out of the well wall, and the end part of the wall-penetrating small-caliber sleeve is provided with a triangular rib plate connected with the flange ring; an adjustable water stopping device is arranged between the flange ring and the outer water stopping baffle. If the large-caliber sleeve and the small-caliber sleeve have a small quantity of seepage points when meeting the reinforcement of a soil body at the outer opening of the well, silt flows into the well, and the silt is blocked from further flowing when gathered at a small opening through the arrangement of the sleeve structure with the large outer part and the small inner part, so that the purpose of seepage prevention is achieved by self-fastening; the adjustable water stopping device can extrude the sealing rubber strip at the lower part through the annular adjusting bolt under the condition that the front channel is waterproof and has leakage, thereby preventing the water seepage from further flowing in. According to the invention, two water stopping structures are added behind the original water stopping device, so that the waterproof and anti-seepage quality in the process of pushing the jacking pipe out of the hole can be effectively ensured to meet the requirements.
Description
Technical Field
The invention relates to a pipe jacking construction water stopping system, in particular to a combined water stopping system for a pipe jacking well to go out of a hole.
Background
The jacking pipe is used as a non-excavation underground passage construction technology, the requirement on water stop of a working well portal in construction is very high, the water stop effect is good and bad, the construction safety is related, and meanwhile, the jacking pipe also has direct influence on the construction quality, ground settlement, pushing jacking force and the like. However, only one water stopping measure is usually arranged in the construction process, and only one water stopping device can not meet the construction requirements for the situations that water cannot be completely stopped and the water stopping effect is poor. Meanwhile, a gap inevitably exists between the traditional sleeve and the hole, and when water seepage occurs at the hole, mud sand and water can enter the gap, so that the potential water seepage hazard exists, and an effective measure is not provided for solving the problem at present.
Disclosure of Invention
The invention aims to provide a combined water stop system for the hole outlet of a pipe jacking well according to the blank of the prior art, and the combined water stop system can block the further flow of silt when the silt is gathered at a small hole through the arrangement of a sleeve structure with a large outer part and a small inner part, and can achieve the purpose of preventing seepage by self-fastening.
In order to achieve the purpose, the invention adopts the technical scheme that: a combined water stopping system for a pipe jacking well to go out of a hole comprises a wall-penetrating large-caliber sleeve, a wall-penetrating small-caliber sleeve, an adjustable water stopping device, a flange ring and an outer water stopping baffle, wherein the wall-penetrating large-caliber sleeve is arranged in the hole of the pipe jacking well and is embedded and fixed with well wall concrete through a triangular rib plate arranged annularly; the wall-penetrating small-caliber sleeve is sleeved on the large-caliber sleeve and extends out of the well wall, and a triangular rib plate is arranged at the end part of the wall-penetrating small-caliber sleeve and is connected with the flange ring; an adjustable water stopping device is arranged between the flange ring and the outer water stopping baffle.
Furthermore, the outer diameter of the wall-penetrating large-caliber casing pipe is 50cm larger than that of the jacking pipe.
Furthermore, the outer diameter of the wall-penetrating small-caliber casing pipe is 10cm larger than that of the jacking pipe.
Furthermore, the outer water stop baffle is connected with the flange ring through a split bolt.
Further, stagnant water device with adjustable includes adjustable bolt and two sealing rubber strip to the hoop arranges between flange ring and outer stagnant water baffle, and the adjusting bolt bottom is connected with the contact of two sealing rubber strip, by adjusting bolt extrusion sealing rubber strip, adjusts the contact surface of two sealing rubber strip and the push pipe wall of a well through elasticity adjusting bolt, reaches the stagnant water effect.
The beneficial effects of the invention are:
(1) the system has simple structure composition but remarkable water stopping effect, is very suitable for being applied to water stopping of the tunnel portal of the pipe-jacking working well, and effectively blocks potential leakage risks.
(2) The device has higher universality and flexibility, can be used for the construction of multiple types of jacking pipes with different calibers, and has strong application and popularization values.
Drawings
FIG. 1 is a schematic view of a pipe jacking well hole-exiting combined water stopping system of the invention;
FIG. 2 is a schematic view of an adjustable water stop device according to the present invention;
the labels in the figure are: 1. the wall-penetrating large-diameter casing pipe comprises a wall-penetrating large-diameter casing pipe 2, a wall-penetrating small-diameter casing pipe 3, a flange ring 4, an adjustable bolt 5, a double-channel sealing rubber strip 6, a water stop baffle 7, a triangular rib plate 7 and a well wall 8.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings.
As shown in fig. 1 to 2, the present embodiment specifically relates to a pipe jacking well hole-exiting combined water stop system, which mainly includes a wall-penetrating large-caliber casing 1, a wall-penetrating small-caliber casing 2, a flange ring 3, an adjustable bolt 4, a double-sealing rubber strip 5 and a water stop baffle 6.
As shown in fig. 1, in the embodiment, a wall-penetrating large-caliber casing 1 is arranged in a hole opening of a pipe jacking well, the outer diameter of the casing is increased by 50cm compared with that of the pipe jacking, and a triangular rib plate is annularly arranged to be embedded and fixed with well wall concrete; the large-caliber casing 1 increases the tolerance range of the deviation of the jacking pipe out of the hole, particularly increases the tolerance of the height difference in the sinking process of the open caisson, and does not need to worry that the jacking pipe goes out to knock against the well wall after the well body rotates.
As shown in fig. 1, in the embodiment, a wall-through small-caliber casing 2 is connected to a large-caliber casing and extends out of a well wall 8, the outer diameter of the casing is increased by 10cm compared with that of a top pipe, and a triangular rib plate 7 is arranged at the end part and connected with a flange ring 3; the wall-penetrating large-caliber sleeve 1 and the wall-penetrating small-caliber sleeve 2 are connected to form a structure form with a large outside and a small inside, if a small amount of seepage points exist in soil body reinforcement at a hole outside a well, silt is mixed with the structure setting with the large outside and the small inside when flowing into the well, the silt is blocked from further flowing when being gathered at a small opening, and the structure is self-fastening and reaches the purpose of seepage prevention and water stop.
As shown in fig. 1 to 2, adjustable water stopping device includes adjustable spiral shell, 4 and two sealing rubber strips 5, and the hoop arranges between flange ring 3 and outer stagnant water baffle 6, and adjusting bolt bottom extrusion sealing rubber strip adjusts the contact surface of rubber strip and the push pipe wall of a well through the elasticity bolt to reduce the wall of a well and play the stagnant water effect with the rubber strip clearance.
The combined water stopping system for the hole outlet of the pipe jacking well adopts a wall-penetrating large-caliber sleeve to be arranged in the hole opening of the pipe jacking well, and a triangular rib plate is annularly arranged on the outer diameter of the sleeve and is embedded and fixed with concrete of a well wall; the wall-penetrating small-caliber sleeve is connected with the large-caliber sleeve and extends out of the well wall, and the end part is provided with a triangular rib plate connected with the flange ring; the outer water stop baffle is connected with the flange ring through a split bolt; the adjustable water stopping device comprises adjustable bolts and double-channel sealing rubber strips, and the annular water stopping device is arranged between the flange ring and the outer water stopping baffle at equal intervals, so that a small amount of seepage points exist when the large-caliber sleeve and the small-caliber sleeve meet the reinforcement of a soil body at an outer opening of a well, and when silt is mixed to flow into the well, the silt can be blocked from further flowing when being gathered at a small opening through the arrangement of the sleeve structure with the large outer part and the small inner part, and the purpose of seepage prevention can be achieved by self-fastening; the adjustable water stopping device can extrude the sealing rubber strip at the lower part through the annular adjusting bolt under the condition that the front channel is waterproof and has leakage, thereby preventing the water seepage from further flowing in. The formed combined water stopping system is additionally provided with two water stopping structures behind the original water stopping device, so that the waterproof and anti-seepage quality of the jacking pipe in the hole outlet process is effectively ensured to meet the requirements.
Claims (2)
1. The utility model provides a push pipe well combination formula stagnant water system that goes out of hole, includes wall-penetrating heavy-calibre sleeve pipe (1), wall-penetrating small-calibre sleeve pipe (2), adjustable watertight fittings, flange ring (3) and outer stagnant water baffle (6), its characterized in that: the wall-penetrating large-caliber casing (1) is arranged in a top pipe well opening and is embedded and fixed with concrete of a well wall (8) through a triangular rib plate (7) which is arranged annularly; the wall-through small-caliber sleeve (2) is sleeved on the large-caliber sleeve (1) and extends out of a well wall (8), and a triangular rib plate (7) is arranged at the end part of the wall-through small-caliber sleeve (2) and is connected with the flange ring (3); an adjustable water stopping device is arranged between the flange ring (3) and the outer water stopping baffle (6); the outer diameter of the wall-penetrating large-caliber casing (1) is 50cm larger than that of the jacking pipe; the outer diameter of the wall-penetrating small-caliber casing pipe (2) is 10cm larger than that of the jacking pipe; the outer water stop baffle (6) is connected with the flange ring (3) through split bolts.
2. The pipe jacking well hole-exiting combined water stopping system according to claim 1, characterized in that: adjustable watertight fittings includes adjustable bolt (4) and two sealing rubber strip (5) to the hoop arranges between flange ring (3) and outer stagnant water baffle (6), and adjusting bolt (4) bottom is connected with two sealing rubber strip (5) contact, by adjusting bolt (4) extrusion sealing rubber strip, adjusts the contact surface of two sealing rubber strip (5) and the push pipe wall of a well through elasticity adjusting bolt (4), reaches the stagnant water effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010783191.9A CN111878126B (en) | 2020-08-06 | 2020-08-06 | Combined water stop system for hole outlet of pipe jacking well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010783191.9A CN111878126B (en) | 2020-08-06 | 2020-08-06 | Combined water stop system for hole outlet of pipe jacking well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111878126A CN111878126A (en) | 2020-11-03 |
| CN111878126B true CN111878126B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010783191.9A Active CN111878126B (en) | 2020-08-06 | 2020-08-06 | Combined water stop system for hole outlet of pipe jacking well |
Country Status (1)
| Country | Link |
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| CN (1) | CN111878126B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889625B (en) * | 2016-04-13 | 2018-01-09 | 中国科学院武汉岩土力学研究所 | A kind of combined steel pipe relay well equipment and construction method for jacking construction |
| CN205743004U (en) * | 2016-07-09 | 2016-11-30 | 陕西建工第十建设集团有限公司 | A kind of hole to be provided construction mould based on assembled steel sleeve pipe |
| CN106402505B (en) * | 2016-10-13 | 2019-11-12 | 上海市基础工程集团有限公司 | Adjustable hole antipriming through walls |
| CN208236414U (en) * | 2018-04-18 | 2018-12-14 | 中铁十四局集团有限公司 | One population tube top is into hole pre-buried steel ring flat-plate and push-bench sealing and connecting device |
| CN109237134A (en) * | 2018-10-19 | 2019-01-18 | 上海宝冶建筑工程有限公司 | A kind of antipriming of jacking construction |
| CN110374640B (en) * | 2019-08-19 | 2021-07-30 | 上海市基础工程集团有限公司 | Sand-stopping and water-stopping device for head of pipe-jacking tunnel |
| CN210686018U (en) * | 2019-10-09 | 2020-06-05 | 核工业井巷建设集团有限公司 | Water stopping device for exit hole of pipe jacking construction |
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2020
- 2020-08-06 CN CN202010783191.9A patent/CN111878126B/en active Active
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| Publication number | Publication date |
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| CN111878126A (en) | 2020-11-03 |
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