CN104534216A - Drainage pipeline and inspection well connection water stop structure - Google Patents
Drainage pipeline and inspection well connection water stop structure Download PDFInfo
- Publication number
- CN104534216A CN104534216A CN201510005578.0A CN201510005578A CN104534216A CN 104534216 A CN104534216 A CN 104534216A CN 201510005578 A CN201510005578 A CN 201510005578A CN 104534216 A CN104534216 A CN 104534216A
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- Prior art keywords
- drainage pipe
- anchor bar
- concrete
- inspection shaft
- water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/12—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe using attaching means embracing the pipe
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
The invention relates to a drainage pipeline and inspection well connection water stop structure. A drainage pipeline is arranged a reserved hole of an inspection well, and the space between the outer circumferential wall of the drainage pipeline and the inner circumferential wall of the reserved hole of the inspection well is compactly filled with expansion concrete; the inner end of the drainage pipeline stretches out of the reserved hole to form an inner end stretching-out segment, and a water expansion water stop ring is arranged on the inner end stretching-out segment in a sleeeving mode; a plurality of anchor bars are arranged on the inner surface of the well wall on the periphery of the reserved hole, an annular reinforcing mesh is arranged on the periphery of the inner end stretching-out segment of the drainage pipeline and fixedly connected to the anchor bars, concrete is poured to the annular reinforcing mesh and the anchor bars so that external wrapping concrete can be formed, and the external wrapping concrete is compactly combined with the inspection well and the drainage pipeline. The drainage pipeline and inspection well connection water stop structure is reasonable in structural design and can effectively solve the problems that the joint of the drainage pipeline and the inspection well is prone to pull cracks, disconnection, leakage and the like, the drainage pipeline and the inspection well can be connected reliably and stably, and normal operation of a drainage pipeline network is guaranteed.
Description
Technical field
The present invention relates to the connection measure of drainage pipe and inspection shaft, specifically a kind of concrete drain pipeline is connected water sealing structure with inspection shaft, belongs to municipal drainage pipeline technical field of construction.
Background technique
In municipal engineering, the live and work of drainage pipe and people is closely bound up, bears the critical function such as urban sewage, storm-water drainage.Inspection shaft is the important component part of drainage pipeline networks, and it plays the effect connecting main pipe and arm, the clear and coherent maintenance construction of pipeline.The connection of pipeline and inspection shaft, particularly with the connection of steel concrete well, can be divided into according to the gap choke material of pipeline and inspection shaft hole to be provided and be rigidly connected and flexibly connect, when gap adopt spunyarn, slush or spunyarn-asbestos cement filling and tamping time, can think that both are rigidly connected; When hole to be provided adopts the pre-buried steel collar, and when using seal with elastometic washer between collar inwall and tubing, can think that both flexibly connect.But when pipeline and inspection shaft are in quicksand soil layer or soft layer, because being subject to the reasons such as physical environment, hydraulics and upper stressor layer change after pipe network comes into operation, the connection part of pipeline and inspection shaft is made to occur being out of shape and produce the phenomenon such as drawing crack, disconnection, underground water inside and outside well is made to be entrained with the soil body of pipeline surrounding and silt particle pours in well, flow away with sewage, if things go on like this cause vicious circle, finally cause the sinking on above ground structure and road surface to destroy.
Summary of the invention
The object of the invention is to overcome above-mentioned drainage pipe is connected measure deficiency with inspection shaft, connection and the water sealing structure of a kind of drainage pipe and inspection shaft are provided, its reasonable in design, can effectively solve drainage pipe and inspection shaft joint easily produces the problems such as drawing crack, disconnection, seepage, drainage pipe is connected with inspection shaft reliable and stable, ensures the normal operation of drainage pipeline networks.
According to technological scheme provided by the invention: drainage pipe is connected water sealing structure with inspection shaft, it is characterized in that: comprise expansive concrete, anchor bar, steel hoop net, water-swellable water-stop ring and external wrapping concrete, described drainage pipe is arranged in the reserved opening of inspection shaft, closely knit filling expansive concrete between drainage pipe periphery wall and inspection shaft reserved opening inner circle wall; Described drainage pipe the inner is stretched out and is formed the inner section of stretching out in reserved opening, and described water-swellable water-stop ring is sleeved in this inner section of stretching out; The borehole wall internal surface of reserved opening periphery is provided with some anchor bars, described steel hoop net is arranged on the section of the stretching out periphery, the inner of drainage pipe, steel hoop net and anchor bar are connected and fixed, on described steel hoop net and anchor bar, concreting forms external wrapping concrete, and described external wrapping concrete is combined closely with inspection shaft and drainage pipe simultaneously.
As a further improvement on the present invention, described expansive concrete adopts expansive concrete.
As a further improvement on the present invention, described anchor bar is equidistantly evenly arranged along reserved opening circumferential annular, and anchor bar is established inside and outside two-layer altogether, and anchor bar and the outer field anchor bar mutual dislocation of internal layer are arranged.
As a further improvement on the present invention, the circumferential distance between the adjacent anchor bar in described internal layer anchor bar, outer anchor bar is 350mm, and the radial spacing between internal layer anchor bar and outer anchor bar is 200mm.
As a further improvement on the present invention, the borehole wall internal surface of described reserved opening periphery is drilled with fixed hole, described anchor bar to be plugged in fixed hole and to be fixed by anchoring adhesive gluing.
As a further improvement on the present invention, described anchor bar employing diameter is Φ 12mm, strength grade is the Twisted Steel of HRB400, and the length of anchor bar is 440mm, and the aperture of described fixed hole is 18mm, and the hole depth of fixed hole is 180mm.
As a further improvement on the present invention, described steel hoop net adopts the plain bar that diameter is Φ 8mm, strength grade is HPB300 to make, and steel hoop net and anchor bar colligation are connected and fixed; Steel hoop net establishes two pieces altogether, and the axial spacing between two pieces steel hoop net is 200mm.
As a further improvement on the present invention, described water-swellable water-stop ring is ring seal circle, and water-swellable water-stop ring is installed in the annular groove that the inner section of the stretching out periphery wall of drainage pipe is provided with; Water-swellable water-stop ring meets expansion rate of water absorption >=250% after water, elongation percentage >=350%.
As a further improvement on the present invention, the thickness of described external wrapping concrete is 300mm, and assuring length is 300mm.
As a further improvement on the present invention, described external wrapping concrete adopts slightly expanded concrete to build and forms, the strength grade of slightly expanded concrete is C35, slightly expanded concrete cement used adopts 42.5 grades of ordinary Portland cements, expansive agent dosage in slightly expanded concrete is 10% ~ 14% of cement consumption, limited expansion rate >=0.015% of slightly expanded concrete, curing time is no less than 14 days.
compared with the prior art the present invention, has the following advantages:
(1), reasonable in design of the present invention, drainage pipe the inner is stretched out and is formed the inner section of stretching out in reserved opening, this the inner section of stretching out arranges external wrapping concrete assure, external wrapping concrete and the borehole wall adopt bar planting method to be connected, it is large that whole linkage structure has rigidity, it is strong that resistance to deformation and tension take off ability, long service life, the advantages such as constructing operation is simple, can effectively solve drainage pipe and inspection shaft joint easily produces drawing crack, disconnect, the problems such as seepage, be specially adapted to connection sealing and the leakage proof of concrete drain pipeline and concrete walling, drainage pipe is connected reliable and stable with inspection shaft, ensure the normal operation of drainage pipeline networks.
(2), the present invention arranges water-swellable water-stop ring between external wrapping concrete and the inner section of stretching out of drainage pipe, and between drainage pipe periphery wall and inspection shaft reserved opening inner circle wall closely knit filling expansive concrete, enhance the ability of the anti-leakage of drainage pipe and inspection shaft joint.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention drainage pipe is connected water sealing structure elevational schematic view with inspection shaft.
Fig. 2 is embodiment of the present invention drainage pipe is connected water sealing structure generalized section with inspection shaft.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1, the drainage pipe in embodiment is connected water sealing structure and forms primarily of expansive concrete 3, anchor bar 5, steel hoop net 6, water-swellable water-stop ring 7 and external wrapping concrete 8 with inspection shaft.
As shown in Figure 1 and Figure 2, described drainage pipe 2 is arranged in the reserved opening of inspection shaft 1, closely knit filling expansive concrete 3 between drainage pipe 2 periphery wall and inspection shaft 1 reserved opening inner circle wall; Described drainage pipe 2 the inner is stretched out and is formed the inner section of stretching out 2.1 in reserved opening, and described water-swellable water-stop ring 7 is sleeved in this inner section of stretching out 2.1; The borehole wall internal surface of reserved opening periphery is provided with some anchor bars 5, the inner section of stretching out 2.1 that described steel hoop net 6 is arranged on drainage pipe 2 is peripheral, steel hoop net 6 and anchor bar 5 are connected and fixed, along reserved opening periphery installation form, on described steel hoop net 6 and anchor bar 5, concreting forms external wrapping concrete 8, and described external wrapping concrete 8 is combined closely with inspection shaft 1 and drainage pipe 2 simultaneously.
In the embodiment of the present invention, described expansive concrete 3 preferably adopts expansive concrete, is conducive to the anti-leakage ability strengthening drainage pipe 2 and inspection shaft 1 joint like this.
As shown in Figure 1 and Figure 2, in the embodiment of the present invention, described anchor bar 5 is equidistantly evenly arranged along reserved opening circumferential annular, and anchor bar 5 is established inside and outside two-layer altogether, and anchor bar 5 and outer field anchor bar 5 mutual dislocation of internal layer are arranged; Circumferential distance a between adjacent anchor bar 5 in described internal layer anchor bar 5, outer anchor bar 5 is 350mm, and the radial spacing b between internal layer anchor bar 5 and outer anchor bar 5 is 200mm.
As shown in Figure 1 and Figure 2, in the embodiment of the present invention, described anchor bar 5 adopts that diameter is Φ 12mm, strength grade is the Twisted Steel of HRB400.Anchor bar 5 is fixed by embedding re-bar technique, bar planting operation is specific as follows: on the borehole wall internal surface of reserved opening periphery, be drilled with fixed hole 4, aperture blowing or hole flushing is carried out after having holed, then in fixed hole 4, inject chemical powerful anchoring adhesive, anchor bar 5 to be plugged in fixed hole 4 and to be fixed by anchoring adhesive gluing.Anchor bar 5 length in embodiment is 440mm, and the aperture of fixed hole 4 is 18mm, and the hole depth L1 of fixed hole 4 is 180mm.
As shown in Figure 1 and Figure 2, in the embodiment of the present invention, described steel hoop net 6 adopts the plain bar that diameter is Φ 8mm, strength grade is HPB300 to make, and steel hoop net 6 and anchor bar 5 colligation are connected and fixed; Steel hoop net 6 establishes two pieces altogether, and the axial spacing c between two pieces steel hoop net 6 is 200mm.
As shown in Figure 1 and Figure 2, in the embodiment of the present invention, described water-swellable water-stop ring 7 is ring seal circle, and water-swellable water-stop ring 7 is installed in the annular groove that the drainage pipe 2 the inner section of stretching out 2.1 periphery wall is provided with; Water-swellable water-stop ring 7 should be in place before concreting; Water-swellable water-stop ring 7 meets expansion rate of water absorption >=250% after water, elongation percentage >=350%.
As shown in Figure 1 and Figure 2, in the embodiment of the present invention, the thickness h of described external wrapping concrete 8 is 300mm, and assuring length L2 is 300mm.Described external wrapping concrete 8 preferably adopts slightly expanded concrete to build and forms, the strength grade of slightly expanded concrete is C35, slightly expanded concrete cement used adopts 42.5 grades of ordinary Portland cements, expansive agent dosage in slightly expanded concrete is 10% ~ 14% of cement consumption, limited expansion rate >=0.015% of slightly expanded concrete, curing time is no less than 14 days.
Claims (10)
1. drainage pipe is connected water sealing structure with inspection shaft, it is characterized in that: comprise expansive concrete (3), anchor bar (5), steel hoop net (6), water-swellable water-stop ring (7) and external wrapping concrete (8), described drainage pipe (2) is arranged in the reserved opening of inspection shaft (1), closely knit filling expansive concrete (3) between drainage pipe (2) periphery wall and inspection shaft (1) reserved opening inner circle wall; Described drainage pipe (2) the inner is stretched out and is formed the inner section of stretching out (2.1) in reserved opening, and described water-swellable water-stop ring (7) is sleeved in this inner section of stretching out (2.1); The borehole wall internal surface of reserved opening periphery is provided with some anchor bars (5), the inner section of stretching out (2.1) that described steel hoop net (6) is arranged on drainage pipe (2) is peripheral, steel hoop net (6) and anchor bar (5) are connected and fixed, form external wrapping concrete (8) described steel hoop net (6) and the upper concreting of anchor bar (5), described external wrapping concrete (8) is combined closely with inspection shaft (1) and drainage pipe (2) simultaneously.
2. drainage pipe as claimed in claim 1 is connected water sealing structure with inspection shaft, it is characterized in that: described expansive concrete (3) adopts expansive concrete.
3. drainage pipe as claimed in claim 1 is connected water sealing structure with inspection shaft, it is characterized in that: described anchor bar (5) is equidistantly evenly arranged along reserved opening circumferential annular, anchor bar (5) is established inside and outside two-layer altogether, and anchor bar (5) and outer field anchor bar (5) mutual dislocation of internal layer are arranged.
4. drainage pipe as claimed in claim 3 is connected water sealing structure with inspection shaft, it is characterized in that: the circumferential distance (a) between the adjacent anchor bar (5) in described internal layer anchor bar (5), outer anchor bar (5) is 350mm, and the radial spacing (b) between internal layer anchor bar (5) and outer anchor bar (5) is 200mm.
5. drainage pipe as claimed in claim 1 is connected water sealing structure with inspection shaft, it is characterized in that: the borehole wall internal surface of described reserved opening periphery is drilled with fixed hole (4), described anchor bar (5) to be plugged in fixed hole (4) and to be fixed by anchoring adhesive gluing.
6. drainage pipe as claimed in claim 5 is connected water sealing structure with inspection shaft, it is characterized in that: described anchor bar (5) employing diameter is Φ 12mm, strength grade is the Twisted Steel of HRB400, the length of anchor bar (5) is 440mm, the aperture of described fixed hole (4) is 18mm, and the hole depth (L1) of fixed hole (4) is 180mm.
7. drainage pipe as claimed in claim 1 is connected water sealing structure with inspection shaft, it is characterized in that: described steel hoop net (6) adopts the plain bar that diameter is Φ 8mm, strength grade is HPB300 to make, and steel hoop net (6) and anchor bar (5) colligation are connected and fixed; Steel hoop net (6) establishes two pieces altogether, and the axial spacing (c) between two pieces steel hoop net (6) is 200mm.
8. drainage pipe as claimed in claim 1 is connected water sealing structure with inspection shaft, it is characterized in that: described water-swellable water-stop ring (7) is ring seal circle, water-swellable water-stop ring (7) is installed in the annular groove that drainage pipe (2) the inner section of stretching out (2.1) periphery wall is provided with; Water-swellable water-stop ring (7) meets expansion rate of water absorption >=250% after water, elongation percentage >=350%.
9. drainage pipe as claimed in claim 1 is connected water sealing structure with inspection shaft, and it is characterized in that: the thickness (h) of described external wrapping concrete (8) is 300mm, assuring length (L2) is 300mm.
10. drainage pipe as claimed in claim 1 is connected water sealing structure with inspection shaft, it is characterized in that: described external wrapping concrete (8) adopts slightly expanded concrete to build and forms, the strength grade of slightly expanded concrete is C35, slightly expanded concrete cement used adopts 42.5 grades of ordinary Portland cements, expansive agent dosage in slightly expanded concrete is 10% ~ 14% of cement consumption, limited expansion rate >=0.015% of slightly expanded concrete, curing time is no less than 14 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005578.0A CN104534216A (en) | 2015-01-06 | 2015-01-06 | Drainage pipeline and inspection well connection water stop structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005578.0A CN104534216A (en) | 2015-01-06 | 2015-01-06 | Drainage pipeline and inspection well connection water stop structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104534216A true CN104534216A (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510005578.0A Pending CN104534216A (en) | 2015-01-06 | 2015-01-06 | Drainage pipeline and inspection well connection water stop structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104534216A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755764A (en) * | 2018-06-04 | 2018-11-06 | 华煜建设集团有限公司 | A kind of inspection shaft and its construction method |
| CN110578341A (en) * | 2019-08-06 | 2019-12-17 | 苏州电力设计研究院有限公司 | Power cable pipe arrangement working well and construction method thereof |
| CN113445609A (en) * | 2021-07-13 | 2021-09-28 | 中国建筑第四工程局有限公司 | Well chamber prefabricated by municipal rainwater and sewage and well chamber pipe orifice plugging construction method |
| CN113818540A (en) * | 2021-09-27 | 2021-12-21 | 郑州一建集团有限公司 | Prefabricated inspection well and concrete pipeline connecting device and connecting process |
| CN114960772A (en) * | 2022-06-29 | 2022-08-30 | 华南理工大学 | A prefabricated joint for utility tunnel connects mouth |
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| US5667255A (en) * | 1994-06-28 | 1997-09-16 | Usui Kokusai Sangyo Kaisha Ltd. | Joint structure for joining a branch member to a high pressure fuel rail |
| CN202023204U (en) * | 2011-02-17 | 2011-11-02 | 广东省冶金建筑设计研究院 | Water stop device for opening of circular open caisson |
| CN102797266A (en) * | 2012-08-31 | 2012-11-28 | 天津住宅集团建设工程总承包有限公司 | Well sealing waterproof construction method for dewatering well |
| CN202899281U (en) * | 2012-11-28 | 2013-04-24 | 上海千年城市规划工程设计股份有限公司 | Connection structure for connecting newly constructed drainage pipeline into constructed well body |
| CN203145029U (en) * | 2013-04-02 | 2013-08-21 | 中国建筑第七工程局有限公司 | Plugging structure for deep foundation pit dewatering well |
| CN104060634A (en) * | 2014-07-01 | 2014-09-24 | 国家电网公司 | Water stopping method and structure for reserved hole of pipe jacking work well |
| CN204387560U (en) * | 2015-01-06 | 2015-06-10 | 无锡市政设计研究院有限公司 | Drainage pipe is connected water sealing structure with inspection shaft |
-
2015
- 2015-01-06 CN CN201510005578.0A patent/CN104534216A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5667255A (en) * | 1994-06-28 | 1997-09-16 | Usui Kokusai Sangyo Kaisha Ltd. | Joint structure for joining a branch member to a high pressure fuel rail |
| CN202023204U (en) * | 2011-02-17 | 2011-11-02 | 广东省冶金建筑设计研究院 | Water stop device for opening of circular open caisson |
| CN102797266A (en) * | 2012-08-31 | 2012-11-28 | 天津住宅集团建设工程总承包有限公司 | Well sealing waterproof construction method for dewatering well |
| CN202899281U (en) * | 2012-11-28 | 2013-04-24 | 上海千年城市规划工程设计股份有限公司 | Connection structure for connecting newly constructed drainage pipeline into constructed well body |
| CN203145029U (en) * | 2013-04-02 | 2013-08-21 | 中国建筑第七工程局有限公司 | Plugging structure for deep foundation pit dewatering well |
| CN104060634A (en) * | 2014-07-01 | 2014-09-24 | 国家电网公司 | Water stopping method and structure for reserved hole of pipe jacking work well |
| CN204387560U (en) * | 2015-01-06 | 2015-06-10 | 无锡市政设计研究院有限公司 | Drainage pipe is connected water sealing structure with inspection shaft |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755764A (en) * | 2018-06-04 | 2018-11-06 | 华煜建设集团有限公司 | A kind of inspection shaft and its construction method |
| CN110578341A (en) * | 2019-08-06 | 2019-12-17 | 苏州电力设计研究院有限公司 | Power cable pipe arrangement working well and construction method thereof |
| CN113445609A (en) * | 2021-07-13 | 2021-09-28 | 中国建筑第四工程局有限公司 | Well chamber prefabricated by municipal rainwater and sewage and well chamber pipe orifice plugging construction method |
| CN113818540A (en) * | 2021-09-27 | 2021-12-21 | 郑州一建集团有限公司 | Prefabricated inspection well and concrete pipeline connecting device and connecting process |
| CN114960772A (en) * | 2022-06-29 | 2022-08-30 | 华南理工大学 | A prefabricated joint for utility tunnel connects mouth |
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| PB01 | Publication | ||
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Application publication date: 20150422 |