CN110485479A - Composite water-proof structure and its construction method at deep basal pit anti-float anchor rod node - Google Patents
Composite water-proof structure and its construction method at deep basal pit anti-float anchor rod node Download PDFInfo
- Publication number
- CN110485479A CN110485479A CN201910671477.5A CN201910671477A CN110485479A CN 110485479 A CN110485479 A CN 110485479A CN 201910671477 A CN201910671477 A CN 201910671477A CN 110485479 A CN110485479 A CN 110485479A
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- Prior art keywords
- hole
- waterproof
- reinforcing bar
- anchor
- water
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
Abstract
The invention discloses composite water-proof structure and its construction method at a kind of deep basal pit anti-float anchor rod node, the sub-surface set gradually including anchor pole, from top to bottom, concrete cushion, waterproof protective layer, bottom plate are extended in bottom plate from sub-surface on anchor pole；The junction of anchor pole and waterproof protective layer opens up a through-hole, and setting one penetrates through concrete cushion and protrudes into the anchor hole of sub-surface below through-hole, and anchor hole cross section is less than the cross section of through-hole；Slurries are poured into anchor hole and form injecting cement paste, and a supplement waterproof layer is formed in through-hole；The anchor pole includes anchoring body and the reinforcing bar that is fixed on anchoring body; the anchoring body soil layer located underground; reinforcing bar extends in bottom plate from sub-surface; a connector is socketed on the reinforcing bar; the connector includes the steel loop covered on reinforcing bar, the water-swellable ring being bonded in below steel loop; gap weldig between the steel loop and reinforcing bar seals to form a weld part, and the upper surface of the steel loop and the lower surface of waterproof protective layer are concordant.
Description
Technical field
The present invention relates to waterproofs at anti-float anchor rod node, in particular to composite water-proof structure at deep basal pit anti-float anchor rod node
And its construction method.
Background technique
Anti-float anchor rod is one kind of architectural engineering underground structure measure of anti float.Anti-float anchor rod tensional element, one end are anchored at
Building bottom plate, the other end are anchored in the supporting course of ground, loading process be first by anchoring body reinforcing bar and injecting cement paste it
Between effect uplift force is reached on injecting cement paste；It then will be suffered by injecting cement paste by the frictional force between injecting cement paste and periphery soil layer
To power reach in the stable soil body around, thus formed have certain breakout capacity anti-float anchor rod, play anti-float anchor rod
Anti-floating effect.
Since anchor bar steel influential point of tendons passes through waterproof outside bottom plate, corresponding supplement waterproof measure will do it.Existing waterproof construction
As the anti-float anchor rod waterproofing node for the patent disclosure that notification number is CN206986886U, including reinforced concrete floor and anti-
The main stress muscle of drogue bar, the anti-float anchor rod protrudes into the reinforced concrete floor, the reinforced concrete floor and institute
The junction for stating anti-float anchor rod is equipped with a funnel-shaped recesses makes, and the reinforced concrete floor lower section is described in addition to being equipped with waterproof layer
Groove is also successively arranged waterproof mortar course and waterproofing unction filled layer, anchor pole pile crown waterproof reinforced layer, mortar levelling from top to down
Layer；The waterproofing node of the anti-float anchor rod of the utility model is additionally arranged funnel-shaped recesses makes on anti-float anchor rod top, has performed waterproof roll
After material, the waterproofing unction of certain altitude is first filled out, then with waterproof mortar filling and levelling.
This mode is irregular due to rebar surface, and capillary water, which easily rises along the gap of body of rod outer wall, to be caused to seep water.
Summary of the invention
In view of the deficienciess of the prior art, the first object of the present invention is to answer at a kind of deep basal pit anti-float anchor rod node
Waterproof construction is closed, waterproof effect is promoted.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of deep basal pit anti-float anchor rod section
Composite water-proof structure at point, the sub-surface set gradually including anchor pole, from top to bottom, concrete cushion, waterproof protective layer, bottom
Plate is extended in bottom plate from sub-surface on anchor pole；The junction of anchor pole and waterproof protective layer opens up a through-hole, sets below through-hole
It sets a perforation concrete cushion and protrudes into the anchor hole of sub-surface, anchor hole cross section is less than the cross section of through-hole；It is poured into anchor hole
Slurries form injecting cement paste, and a supplement waterproof layer is formed in through-hole；The anchor pole includes anchoring body and the steel that is fixed on anchoring body
Muscle, the anchoring body soil layer located underground, reinforcing bar extend in bottom plate from sub-surface, and a connector is socketed on the reinforcing bar,
The connector includes the steel loop covered on reinforcing bar, the water-swellable ring being bonded in below steel loop, between the steel loop and reinforcing bar
Gap weldig seal to form a weld part, the upper surface of the steel loop and the lower surface of waterproof protective layer are concordant.
This programme positions steel loop by water-swellable ring, later by steel loop and reinforcement welding, due to steel loop and steel
Muscle welding, therefore capillary water will not up be flowed along reinforcing bar；And it is upper due to waterproof layer lower surface and steel loop and injecting cement paste
Face seal connection, therefore capillary water can not be between anchor hole inner wall be between waterproof layer lower surface and injecting cement paste upper surface
Clearance flow goes out, therefore ensure that its whole waterproof effect (water cannot from from anchor hole overflow).
Further, the upper surface of the steel loop opens up a holding tank, the connection for accommodating trench bottom and opening up a perforation
Hole, the connecting hole are connected to water-swellable ring.
It can so be filled the water out of steel loop holding tank, so that water-swellable ring water swelling abuts reinforcing bar outer wall, from outer
Portion's end-on water expansion loop water spray is easy to cause water to enter in anchor hole, influences to construct.
Further, the weld part and water-swellable central spacer are arranged.
High temperature can be generated when welding, and end-on water expansion loop is avoided to impact.
Further, the supplement waterproof layer includes waterproof coating, waterproof roll and waterproofing unction filled layer from bottom to top.
By three layers of waterproof of waterproof coating, waterproof roll and waterproofing unction filled layer, it is further ensured that its waterproof performance.
Further, form the waterproof jacket that passes through for reinforcing bar on the waterproof roll, after the waterproof jacket hot melt with reinforcing bar
Bonding.
Waterproof roll is heated so that its is in a molten state Nian Jie with reinforcing bar cooling.
Further, it is arranged a steel bushing outside the waterproof jacket, the bottom of the steel bushing is abutted with the upper surface of waterproof roll.
The setting of steel bushing after waterproof jacket hot melt by steel bushing so that be limited between reinforcing bar and reinforcing bar.
Further, the opening of the steel bushing is gradually reduced from top to bottom.
In this way, entering in steel bushing convenient for heat-fused portion.
The second object of the present invention is to provide composite water-proof construction method at a kind of deep basal pit anti-float anchor rod node,
Good water-proof effect.
Composite water-proof construction method at deep basal pit anti-float anchor rod node, includes the following steps: 1) self waterproofing protective layer
Punching downwards protrudes into sub-surface across concrete cushion and forms anchor hole, forms through-hole to reaming is carried out at waterproof protective layer；
2) recrement in anchor hole and through-hole is removed using pressure-air until feel is without dust, to avoid until the wind that aperture is returned out
Sediment in anchor hole and through-hole exists；
3) anchor pole is put into anchor hole and anchor pole will be kept vertical in anchoring body partial insertion sub-surface；
4) connector is inserted on reinforcing bar, mobile connection body makes steel loop upper surface concordant with anchor hole upper surface, in holding tank
Water filling is so that steel loop positions, and by steel ring welding on reinforcing bar, later by connecting hole and holding tank welded seal；
5) carry out slip casing by pressure, by the way of the reversed slip casting of bottom hole, Grouting Pipe insertion away from anchor hole bottom 30cm at, slurries are from slip casting
Pipe inwardly pours into, and gas is expelled directly out；
6) coating waterproof coating, laying water-proof coiled material process are successively carried out after injecting cement paste solidification；
7) steel bushing is covered outside waterproof jacket, waterproof jacket is heated so that being bonded after waterproof jacket hot melt with reinforcing bar；
8) waterproofing unction is injected above the waterproof roll in through-hole form waterproofing unction filled layer；
9) reinforcing bar upper end is bent；
10) bottom plate is poured.
Reinforcing bar is fixed in water-swellable ring, and when to steel ring welding, heat can make in water-swellable ring
Part water evaporation；Later again in anchor hole inject slurries when, water-swellable ring expands herein, can effectively prevent water from
Steel loop side wall flows up.
In conclusion the invention has the following advantages: this programme is effectively promoted at deep basal pit anti-float anchor rod node
Waterproof effect.
Detailed description of the invention
Fig. 1 is the schematic diagram of embodiment；
Fig. 2 is the portion the A enlarged drawing of Fig. 1.
Appended drawing reference: 1, sub-surface；2, concrete cushion；31, waterproof coating；32, waterproof roll；33, waterproof jacket；
34, waterproof protective layer；35, steel bushing；36, waterproofing unction filled layer；4, bottom plate；5, anchor pole；51, anchoring body；52, reinforcing bar；6, steel
Ring；61, holding tank；62, connecting hole；7, water-swellable ring；8, weld part；91, through-hole；92, anchor hole.
Specific embodiment
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Composite water-proof structure, such as Fig. 1-2 at a kind of deep basal pit anti-float anchor rod node, including anchor pole 5, successively set from top to bottom
Sub-surface 1, concrete cushion 2, waterproof protective layer 34, the bottom plate 4 set are extended in bottom plate 4 from sub-surface 1 on anchor pole 5.
Anchor pole 5 includes anchoring body 51 and the reinforcing bar 52 being welded on anchoring body 51, and reinforcing bar 52 is arranged three, and anchoring body 51 is in
Cone shape soil layer 1 located underground, reinforcing bar 52 extend in bottom plate 4 from sub-surface 1.
The junction of anchor pole 5 and waterproof protective layer 34 opens up a through-hole 91, one perforation concrete mats of setting below through-hole 91
Layer 2 and the anchor hole 92 for protruding into sub-surface 1,92 cross section of anchor hole are less than the cross section of through-hole 91, pour into slurries shape in anchor hole 92
At injecting cement paste.A supplement waterproof layer is formed in through-hole 91, supplement waterproof layer includes waterproof coating 31, waterproof roll 32 from bottom to top
With waterproofing unction filled layer 36.31 lower surface of waterproof coating is concordant with 91 lower end surface of through-hole, 36 upper surface of waterproofing unction filled layer
It is concordant with 91 upper surface of through-hole.The waterproof jacket 33 passed through integrally formed with formation for reinforcing bar 52 on waterproof roll 32, waterproof jacket 33
It is arranged a steel bushing 35 outside, the bottom of steel bushing 35 is abutted with the upper surface of waterproof roll 32, and steel bushing 35 is in shaped hollow round table, steel bushing 35
Opening be gradually reduced from top to bottom；35 height of steel bushing is lower than the height of waterproof jacket 33, and waterproof jacket 33 is viscous with reinforcing bar 52 after heating
33 height of waterproof jacket is lower than 35 height of steel bushing after knot and hot melt.
A connector is socketed on reinforcing bar 52, connector includes the steel loop 6 covered on reinforcing bar 52, is bonded in below steel loop 6
Water-swellable ring 7, the gap weldig between steel loop 6 and reinforcing bar 52 seal to form a weld part 8, weld part 8 and water-swellable ring 7
In vertical direction, there are differences in height.The upper surface of steel loop 6 is concordant with the lower surface of waterproof protective layer 34.It opens the upper surface of steel loop 6
If a holding tank 61,61 bottom of holding tank opens up the connecting hole 62 of a perforation, and connecting hole 62 is connected to water-swellable ring 7.
Waterproof protective layer 34 can be water-proof concrete.Water-swellable ring 7 is identical as water expandable waterstop material.
Above structure constructs to be formed using following methods: composite water-proof structure construction side at deep basal pit anti-float anchor rod node
Method includes the following steps: that the 1) punching downwards of self waterproofing protective layer 34 protrudes into the formation anchor hole of sub-surface 1 across concrete cushion 2
92, through-hole 91 is formed to reaming is carried out at waterproof protective layer 34；
2) recrement in anchor hole 92 and through-hole 91 is removed using pressure-air, until the wind that aperture is returned out, until feel is without dust,
The sediment in anchor hole 92 and through-hole 91 is avoided to exist；
3) anchor pole 5 is put into anchor hole 92 and will keeps anchor pole 5 vertical in 51 partial insertion sub-surface 1 of anchoring body；
4) connector is inserted on reinforcing bar 52, mobile connection body makes 6 upper surface of steel loop concordant with 92 upper surface of anchor hole, accommodating
Water filling in slot 61 later welds connecting hole 62 and holding tank 61 so that steel loop 6 positions, and steel loop 6 is welded on reinforcing bar 52
Sealing；
5) carry out slip casing by pressure, by the way of the reversed slip casting of bottom hole, Grouting Pipe insertion away from 92 bottom 30cm of anchor hole at, slurries are from note
Slurry pipe inwardly pours into, and gas is expelled directly out；
6) coating waterproof coating 31,32 process of laying water-proof coiled material are successively carried out after injecting cement paste solidification；
7) by 35 sets of steel bushing outside waterproof jacket 33, waterproof jacket 33 is heated so that waterproof jacket 33 bonds after heating with reinforcing bar 52；
8) waterproofing unction is injected above the waterproof roll 32 in through-hole 91 form waterproofing unction filled layer 36；
9) 52 upper end of reinforcing bar is bent；
10) bottom plate 4 is poured.
Claims (8)
1. composite water-proof structure at a kind of deep basal pit anti-float anchor rod node, the underground set gradually including anchor pole (5), from top to bottom
Soil layer (1), concrete cushion (2), waterproof protective layer (34), bottom plate (4) extend to bottom plate from sub-surface (1) on anchor pole (5)
(4) in；The junction of anchor pole (5) and waterproof protective layer (34) opens up a through-hole (91), and one perforation of setting is mixed below through-hole (91)
Solidifying soil padding (2) and the anchor hole (92) for protruding into sub-surface (1), anchor hole (92) cross section are less than the cross section of through-hole (91)；Anchor
Slurries are poured into hole (92) and form injecting cement paste, a supplement waterproof layer are formed in through-hole (91), it is characterized in that: the anchor pole (5) wraps
The reinforcing bar (52) for including anchoring body (51) and being fixed on anchoring body (51), the anchoring body (51) soil layer located underground (1), reinforcing bar
(52) it is extended in bottom plate (4) from sub-surface (1), a connector is socketed on the reinforcing bar (52), the connector includes set
In the steel loop (6) on reinforcing bar (52), the water-swellable ring (7) that is bonded in below steel loop (6), the steel loop (6) and reinforcing bar (52)
Between gap weldig seal to be formed a weld part (8), the lower surface of the upper surface of the steel loop (6) and waterproof protective layer (34)
Concordantly.
2. composite water-proof structure at deep basal pit anti-float anchor rod node according to claim 1, it is characterized in that: the steel loop
(6) upper surface opens up a holding tank (61), and holding tank (61) bottom opens up the connecting hole (62) of a perforation, the connection
Hole (62) is connected to water-swellable ring (7).
3. composite water-proof structure at deep basal pit anti-float anchor rod node according to claim 1, it is characterized in that: the weld part
(8) it is arranged with water-swellable ring (7) interval.
4. composite water-proof structure at deep basal pit anti-float anchor rod node according to claim 1, it is characterized in that: the supplement is anti-
Water layer includes waterproof coating (31), waterproof roll (32) and waterproofing unction filled layer (36) from bottom to top.
5. composite water-proof structure at deep basal pit anti-float anchor rod node according to claim 4, it is characterized in that: the waterproof roll
The waterproof jacket (33) passed through for reinforcing bar (52) is formed on material (32), is bonded after waterproof jacket (33) hot melt with reinforcing bar (52).
6. composite water-proof structure at deep basal pit anti-float anchor rod node according to claim 5, it is characterized in that: the waterproof jacket
(33) it is arranged a steel bushing (35) outside, the bottom of the steel bushing (35) is abutted with the upper surface of waterproof roll (32).
7. composite water-proof structure at deep basal pit anti-float anchor rod node according to claim 6, it is characterized in that: the steel bushing
(35) opening is gradually reduced from top to bottom.
8. composite water-proof construction method at deep basal pit anti-float anchor rod node, characterized in that include the following steps: 1) self waterproofing
Protective layer (34) punching downwards protrudes into sub-surface (1) across concrete cushion (2) and forms anchor hole (92), to waterproof protective layer
(34) reaming is carried out at forms through-hole (91)；
2) recrement in anchor hole (92) and through-hole (91) is removed using pressure-air, until the wind that aperture is returned out, feel is without dust
Until, avoid the sediment in anchor hole (92) and through-hole (91) from existing；
3) anchor pole (5) is put into anchor hole (92) and will keeps anchor pole (5) perpendicular in anchoring body (51) partial insertion sub-surface (1)
Directly；
4) connector is inserted on reinforcing bar (52), mobile connection body makes steel loop (6) upper surface concordant with anchor hole (92) upper surface,
The water filling in holding tank (61) is so that steel loop (6) positions, and steel loop (6) is welded on reinforcing bar (52), later by connecting hole
(62) and holding tank (61) welded seal；
5) carry out slip casing by pressure, by the way of the reversed slip casting of bottom hole, Grouting Pipe insertion away from anchor hole (92) bottom 30cm at, slurries from
Grouting Pipe inwardly pours into, and gas is expelled directly out；
6) coating waterproof coating (31), laying water-proof coiled material (32) process are successively carried out after injecting cement paste solidification；
7) by steel bushing (35) cover waterproof jacket (33) outside, to waterproof jacket (33) heat so that waterproof jacket (33) hot melt after with reinforcing bar
(52) it bonds；
8) injection waterproofing unction forms waterproofing unction filled layer (36) above the waterproof roll (32) in through-hole (91)；
9) reinforcing bar (52) upper end is bent；
10) bottom plate (4) are poured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910671477.5A CN110485479B (en) | 2019-07-24 | 2019-07-24 | Deep foundation pit anti-floating anchor rod node composite waterproof structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910671477.5A CN110485479B (en) | 2019-07-24 | 2019-07-24 | Deep foundation pit anti-floating anchor rod node composite waterproof structure and construction method thereof |
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| CN110485479A true CN110485479A (en) | 2019-11-22 |
| CN110485479B CN110485479B (en) | 2021-05-07 |
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ID=68548127
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| CN201910671477.5A Active CN110485479B (en) | 2019-07-24 | 2019-07-24 | Deep foundation pit anti-floating anchor rod node composite waterproof structure and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142479A (en) * | 2022-08-03 | 2022-10-04 | 深圳市宏源建设工程有限公司 | Pressure type prestressing force anti-floating anchor rod waterproof construction |
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| CN202809659U (en) * | 2012-03-20 | 2013-03-20 | 苏州市能工基础工程有限责任公司 | Waterproof joint for steel strand |
| CN204112349U (en) * | 2014-08-12 | 2015-01-21 | 中国十七冶集团有限公司 | Dewatering well water-tight device |
| CN205653784U (en) * | 2016-03-23 | 2016-10-19 | 中建一局集团第二建筑有限公司 | Novel anti -floating anchor rod node waterproofing structure |
| CN205822273U (en) * | 2016-06-28 | 2016-12-21 | 中铁二院重庆勘察设计研究院有限责任公司 | External labeling type Water stop structure for the active-passive integrated sealing of construction joint |
| CN205954622U (en) * | 2016-08-27 | 2017-02-15 | 中国二十冶集团有限公司 | A sealing device for post stretching anti -floating anchor rod |
| CN207727600U (en) * | 2017-12-13 | 2018-08-14 | 中国一冶集团有限公司 | Plugging dewatering well device |
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2019
- 2019-07-24 CN CN201910671477.5A patent/CN110485479B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100879803B1 (en) * | 2007-12-13 | 2009-01-22 | 주식회사 젠트로 | Waterproof structure and constructing method of the same |
| CN202809659U (en) * | 2012-03-20 | 2013-03-20 | 苏州市能工基础工程有限责任公司 | Waterproof joint for steel strand |
| CN204112349U (en) * | 2014-08-12 | 2015-01-21 | 中国十七冶集团有限公司 | Dewatering well water-tight device |
| CN205653784U (en) * | 2016-03-23 | 2016-10-19 | 中建一局集团第二建筑有限公司 | Novel anti -floating anchor rod node waterproofing structure |
| CN205822273U (en) * | 2016-06-28 | 2016-12-21 | 中铁二院重庆勘察设计研究院有限责任公司 | External labeling type Water stop structure for the active-passive integrated sealing of construction joint |
| CN205954622U (en) * | 2016-08-27 | 2017-02-15 | 中国二十冶集团有限公司 | A sealing device for post stretching anti -floating anchor rod |
| CN207727600U (en) * | 2017-12-13 | 2018-08-14 | 中国一冶集团有限公司 | Plugging dewatering well device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115142479A (en) * | 2022-08-03 | 2022-10-04 | 深圳市宏源建设工程有限公司 | Pressure type prestressing force anti-floating anchor rod waterproof construction |
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Effective date of registration: 20210414 Address after: 225300 Suchen Town, Hailing District, Taizhou City, Jiangsu Province (Suchen) Applicant after: Jiangsu Zhengfei Construction Co.,Ltd. Address before: 213000 65 Yanshan Road, Licheng Town, Liyang City, Changzhou City, Jiangsu Province Applicant before: Jiangsu Maosheng Construction Group Co.,Ltd. |
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