CN104060634B - Water-stopping method and the structure of push pipe work well reserving hole - Google Patents

Water-stopping method and the structure of push pipe work well reserving hole Download PDF

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Publication number
CN104060634B
CN104060634B CN201410308294.4A CN201410308294A CN104060634B CN 104060634 B CN104060634 B CN 104060634B CN 201410308294 A CN201410308294 A CN 201410308294A CN 104060634 B CN104060634 B CN 104060634B
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China
Prior art keywords
reserving hole
push pipe
water
concrete slab
described
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CN201410308294.4A
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Chinese (zh)
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CN104060634A (en
Inventor
刘瑞安
李碧青
游金泉
彭传相
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国家电网公司
国网福建省电力有限公司
国网福建省电力有限公司经济技术研究院
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Priority to CN201410308294.4A priority Critical patent/CN104060634B/en
Publication of CN104060634A publication Critical patent/CN104060634A/en
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Abstract

The present invention relates to a kind of water-stopping method and structure of push pipe work well reserving hole, this water-stopping method comprises the following steps: (1), after jacking construction completes, respectively posts the slow type water-swellable sealing rod that rises of multiple tracks along its circumferencial direction at jacking pipe joints outer wall, reserving hole inwall; (2) adopt microdilatancy pea gravel concreten to fill the space between jacking pipe joints outer wall and reserving hole inwall; (3) around push pipe exposure pipeline section and near the borehole wall, build an armoured concrete slab, to seal microdilatancy pea gravel concreten. The present invention adopt the slow type water-swellable sealing rod that rises, microdilatancy pea gravel concreten and after water armoured concrete slab the reserving hole of push pipe work well carried out to sealing, armoured concrete slab has good being connected with the borehole wall, jacking pipe joints respectively, possesses good stagnant water effect.

Description

Water-stopping method and the structure of push pipe work well reserving hole

Technical field

The present invention relates to a kind of water-stopping method and structure of push pipe work well reserving hole.

Background technology

Adopt the transmission of electricity pipeline of jacking construction to require to arrange push pipe work well, be divided into jacking active well and receive two kinds of active wells, wherein in order to reduce earthwork excavated volume, push pipe work well generally adopts open caisson, open caisson construction technique generally supports → stands internal mold → peace wire-tie → stand external mold → perfusion open caisson concrete and health → take out pad → sinking → substrate cleaning → back cover → partition wall and top board and build and carry out by measuring setting-out → excavation of foundation pit → place mat → installations, then jacking construction, needs the reserving hole of the borehole wall to carry out sealing after jacking construction.

Summary of the invention

The object of the present invention is to provide a kind of simple in structure, connect water-stopping method and structure reliable and the push pipe work well reserving hole that stagnant water effect is good.

To achieve these goals, technical scheme one of the present invention is: a kind of water-stopping method of push pipe work well reserving hole, comprises the following steps:

(1), after jacking construction completes, respectively post the slow type water-swellable sealing rod that rises of multiple tracks along its circumferencial direction at jacking pipe joints outer wall, reserving hole inwall;

(2) adopt microdilatancy pea gravel concreten to fill the space between jacking pipe joints outer wall and reserving hole inwall;

(3) around push pipe exposure pipeline section and near the borehole wall, build an armoured concrete slab, to seal microdilatancy pea gravel concreten.

Further, in step (3), the described borehole wall is provided with pre-doweling, before building, first annular girder is connected on pre-doweling, then annular girder is built in armoured concrete slab.

Further, in step (3), the borehole wall to be built, the interface of push pipe exposure pipeline section be in dabbing and after cleaning up, the thick cement based penetration crystallization type water proofing paint of brushing 1mm so that its with after water armoured concrete slab and be reliably connected.

Further, in step (1), described jacking pipe joints outer wall, reserving hole inwall respectively post the slow type water-swellable sealing rod that rises of 4 road 30mm × 30mm along its circumferencial direction.

Further, in step (3), the thickness of described armoured concrete slab is 200mm.

To achieve these goals, technical scheme two of the present invention is: a kind of water sealing structure of push pipe work well reserving hole, described push pipe work well comprises the borehole wall, base plate and top board, the described borehole wall is provided with the reserving hole for jacking construction, described reserving hole inwall and jacking pipe joints outer wall respectively post the slow type water-swellable sealing rod that rises of multiple tracks along its circumferencial direction, space between described reserving hole inwall and jacking pipe joints outer wall is filled with microdilatancy pea gravel concreten, described push pipe exposure pipeline section is around built near the borehole wall to seal the armoured concrete slab of microdilatancy pea gravel concreten.

Further, the described borehole wall is provided with pre-doweling, and described pre-doweling is connected with the annular girder of building in armoured concrete slab.

Further, the interface between the interface between the described borehole wall and concrete slab, push pipe exposure pipeline section and armoured concrete slab is all coated with and is brushed with the cement based penetration crystallization type water proofing paint layer that 1mm is thick.

Further, described reserving hole inwall and jacking pipe joints outer wall respectively post the slow type water-swellable sealing rod that rises of 4 road 30mm × 30mm along its circumferencial direction.

Further, the thickness of described armoured concrete slab is 200mm.

The present invention has the following advantages: adopt the slow type water-swellable sealing rod that rises, microdilatancy pea gravel concreten and after water armoured concrete slab the reserving hole of push pipe work well carried out to sealing, armoured concrete slab has good being connected with the borehole wall, jacking pipe joints respectively, possesses good stagnant water effect.

Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.

Brief description of the drawings

Fig. 1 is the structural representation of the embodiment of the present invention.

Fig. 2 is the cross-sectional schematic at A-A place in Fig. 1.

In figure: the 1-borehole wall, 2-base plate, 3-reserving hole, 4-push pipe, the slow type water-swellable sealing rod that rises of 5-, 6-microdilatancy pea gravel concreten, 7-armoured concrete slab, the pre-doweling of 8-, 9-annular girder.

Detailed description of the invention

As shown in Figure 1 and 2, a kind of water-stopping method of push pipe work well reserving hole, comprises the following steps:

(1), after push pipe 4 has been constructed, respectively post the slow type water-swellable sealing rod 5 that rises of multiple tracks along its circumferencial direction at push pipe 4 tube coupling outer walls, reserving hole 3 inwalls;

(2) space that adopts microdilatancy pea gravel concreten 6 to fill between push pipe 4 tube coupling outer walls and reserving hole 3 inwalls;

(3) around push pipe 4 exposure pipeline sections and near the borehole wall 1, build an armoured concrete slab 7, to seal microdilatancy pea gravel concreten 6.

In the present embodiment, in step (3), the described borehole wall 1 is provided with pre-doweling 8, before building, first annular girder 9 is connected on pre-doweling 8, then annular girder 9 is built in armoured concrete slab 7, makes armoured concrete slab 7 be connected reliable with the borehole wall 1.

In the present embodiment, in step (3), the thick cement based penetration crystallization type water proofing paint of 1mm, in dabbing and after cleaning up, is brushed in the borehole wall 1 to be built, the interface of push pipe 4 exposure pipeline sections, so that its with after water armoured concrete slab 7 and be connected better, possess better stagnant water effect.

In the present embodiment, in step (1), described push pipe 4 tube coupling outer walls, reserving hole 3 inwalls respectively post the slow type water-swellable sealing rod 5 that rises of 4 road 30mm × 30mm along its circumferencial direction.

In the present embodiment, in step (3), the thickness of described armoured concrete slab 7 is 200mm.

As shown in Figure 1 and 2, a kind of water sealing structure of push pipe work well reserving hole, described push pipe work well comprises the borehole wall 1, base plate 2 and top board, the described borehole wall 1 is provided with the reserving hole 3 of constructing for push pipe 4, described reserving hole 3 inwalls and push pipe 4 tube coupling outer walls respectively post the slow type water-swellable sealing rod 5 that rises of multiple tracks along its circumferencial direction, space between described reserving hole 3 inwalls and push pipe 4 tube coupling outer walls is filled with microdilatancy pea gravel concreten 6, and described push pipe 4 exposure pipeline sections are around built near the borehole wall 1 to seal the armoured concrete slab 7 of microdilatancy pea gravel concreten 6.

In the present embodiment, the described borehole wall 1 is provided with pre-doweling 8, and described pre-doweling 8 is connected with the annular girder 9 of building in armoured concrete slab 7, makes armoured concrete slab 7 be connected reliable with the borehole wall 1. Interface between interface, push pipe 4 exposure pipeline sections and armoured concrete slab 7 between the described borehole wall 1 and concrete slab all can be coated with and be brushed with cement based penetration crystallization type water proofing paint layer, the preferred 1mm of thickness of described cement based penetration crystallization type water proofing paint layer, concrete thickness can be adjusted according to the size of armoured concrete slab 7.

In the present embodiment, described reserving hole 3 inwalls and push pipe 4 tube coupling outer walls respectively preferentially post the slow type water-swellable sealing rod 5 that rises of 4 road 30mm × 30mm along its circumferencial direction, slow on described reserving hole 3 inwalls type water-swellable sealing rod 5 positions of rising are upper and lower corresponding with slow type water-swellable sealing rod 5 positions of rising on push pipe 4 tube coupling outer walls and be uniformly distributed, and quantity and the position of the slow type water-swellable sealing rod that rises are not limited to this certainly. The preferred 200mm of thickness of described armoured concrete slab 7, concrete thickness can need to adjust according to practice of construction.

The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.

Claims (6)

1. a water-stopping method for push pipe work well reserving hole, is characterized in that, comprises the following steps:
(1), after jacking construction completes, respectively post the slow type water-swellable sealing rod that rises of multiple tracks along its circumferencial direction at jacking pipe joints outer wall, reserving hole inwall;
(2) adopt microdilatancy pea gravel concreten to fill the space between jacking pipe joints outer wall and reserving hole inwall;
(3) interface of the borehole wall to be built, push pipe exposure pipeline section is in dabbing and after cleaning up, the thick cement based penetration crystallization type water proofing paint of brushing 1mm so that its with after water armoured concrete slab and be reliably connected; Around push pipe exposure pipeline section and near the borehole wall, build an armoured concrete slab, to seal microdilatancy pea gravel concreten; The described borehole wall is provided with pre-doweling, before building, first annular girder is connected on pre-doweling, then annular girder is built in armoured concrete slab.
2. the water-stopping method of push pipe work well reserving hole according to claim 1, is characterized in that: in step (1), described jacking pipe joints outer wall, reserving hole inwall respectively post the slow type water-swellable sealing rod that rises of 4 road 30mm × 30mm along its circumferencial direction.
3. the water-stopping method of push pipe work well reserving hole according to claim 1, is characterized in that: in step (3), the thickness of described armoured concrete slab is 200mm.
4. the water sealing structure of a push pipe work well reserving hole, described push pipe work well comprises the borehole wall, base plate and top board, the described borehole wall is provided with the reserving hole for jacking construction, it is characterized in that: described reserving hole inwall and jacking pipe joints outer wall respectively post the slow type water-swellable sealing rod that rises of multiple tracks along its circumferencial direction, space between described reserving hole inwall and jacking pipe joints outer wall is filled with microdilatancy pea gravel concreten, and described push pipe exposure pipeline section is around built near the borehole wall to seal the armoured concrete slab of microdilatancy pea gravel concreten; The described borehole wall is provided with pre-doweling, and described pre-doweling is connected with the annular girder of building in armoured concrete slab; Interface between interface, push pipe exposure pipeline section and armoured concrete slab between the described borehole wall and concrete slab is all coated with and is brushed with the cement based penetration crystallization type water proofing paint layer that 1mm is thick.
5. the water sealing structure of push pipe work well reserving hole according to claim 4, is characterized in that: described reserving hole inwall and jacking pipe joints outer wall respectively post the slow type water-swellable sealing rod that rises of 4 road 30mm × 30mm along its circumferencial direction.
6. the water sealing structure of push pipe work well reserving hole according to claim 4, is characterized in that: the thickness of described armoured concrete slab is 200mm.
CN201410308294.4A 2014-07-01 2014-07-01 Water-stopping method and the structure of push pipe work well reserving hole CN104060634B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104452813B (en) * 2014-11-06 2016-08-17 国家电网公司 A kind of underground power house gate shaft protected against the effects of immersion method
CN104612720A (en) * 2014-12-22 2015-05-13 上海市政建设有限公司 Waterproof structure of rectangular ejector pipe and ejector pipe ejection construction method
CN104534216A (en) * 2015-01-06 2015-04-22 无锡市政设计研究院有限公司 Drainage pipeline and inspection well connection water stop structure
CN107989638A (en) * 2017-12-28 2018-05-04 中铁二局集团有限公司 A kind of push pipe receives water-stopping method

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JPH09287387A (en) * 1996-02-22 1997-11-04 Toyo Technos:Kk Long-distance pipe jacking method and device in method of semi-shield construction
JPH11286955A (en) * 1998-04-03 1999-10-19 Sekisui Chem Co Ltd Connecting method of propulsive pipe to manhole
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
CN203147066U (en) * 2013-03-09 2013-08-21 熊艳芳 Prepared hole waterproof structure of later-poured through-wall pipe
CN203175580U (en) * 2013-03-27 2013-09-04 国家电网公司 Portal water stopping device for power cable tunnel pipe jacking construction out of tunnel
CN204000963U (en) * 2014-07-01 2014-12-10 国家电网公司 The water-stopping structure of push pipe work well reserving hole

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Publication number Priority date Publication date Assignee Title
JPH09287387A (en) * 1996-02-22 1997-11-04 Toyo Technos:Kk Long-distance pipe jacking method and device in method of semi-shield construction
JPH11286955A (en) * 1998-04-03 1999-10-19 Sekisui Chem Co Ltd Connecting method of propulsive pipe to manhole
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
CN203147066U (en) * 2013-03-09 2013-08-21 熊艳芳 Prepared hole waterproof structure of later-poured through-wall pipe
CN203175580U (en) * 2013-03-27 2013-09-04 国家电网公司 Portal water stopping device for power cable tunnel pipe jacking construction out of tunnel
CN204000963U (en) * 2014-07-01 2014-12-10 国家电网公司 The water-stopping structure of push pipe work well reserving hole

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