CN203603173U - Pile head joint waterproof processing device - Google Patents

Pile head joint waterproof processing device Download PDF

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Publication number
CN203603173U
CN203603173U CN201320735459.7U CN201320735459U CN203603173U CN 203603173 U CN203603173 U CN 203603173U CN 201320735459 U CN201320735459 U CN 201320735459U CN 203603173 U CN203603173 U CN 203603173U
Authority
CN
China
Prior art keywords
pile crown
pile head
layer
waterproof
concrete
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201320735459.7U
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Chinese (zh)
Inventor
刘强
苏德志
王强周
张新军
梁怀刚
张树应
李晓强
茅云青
王海清
郭希芹
李勇
吴英昊
孔思
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhong Tie ChengJian Group Co., Ltd
China Railway 16th Bureau Group Co Ltd
Beijing Engineering Co Ltd of China Railway Urban Construction Group Co Ltd
City Construction Development Co Ltd of China Railway 16th Bureau Group Co Ltd
Original Assignee
Beijing Rail Transit Engineering Construction Co Ltd of China Railway 16th Bureau Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Rail Transit Engineering Construction Co Ltd of China Railway 16th Bureau Group Co Ltd filed Critical Beijing Rail Transit Engineering Construction Co Ltd of China Railway 16th Bureau Group Co Ltd
Priority to CN201320735459.7U priority Critical patent/CN203603173U/en
Application granted granted Critical
Publication of CN203603173U publication Critical patent/CN203603173U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a pile head joint waterproof processing device which comprises a pile head. The top and the interior of the pile head are both provided with reinforcing steel bars, the reinforcing steel bars at the top of the pile head are all upward in a slant mode, the top ends of the reinforcing steel bars are horizontally outward, the lower portion of the pile head is embedded in a basement soil layer, the portion, around the pile head, of the basement soil layer is provided with a horn-shaped opening with the pile head as the center, and the portion, on the periphery of the opening, of the basement soil layer is horizontally arranged. The slope of the horn-shaped opening and the portion, on the periphery of the opening, of the horizontal basement soil layer are provided with concrete pouring layers, and the thicknesses of the parts, located on the slope of the horn-shaped opening, of the concrete pouring layers are the same. The top of the pile head, the lateral faces of the pile head and the concrete pouring layers are continuously provided with cement mortar layers, and the portions, around the pile head, of the cement mortar layers are provided with flexible waterproof material layers. The pile head joint waterproof processing device has the advantages that the prior art is improved, the pile head joint quality is improved, the earthwork excavated volume is reduced, the labor cost is saved, materials are saved, construction waste is reduced, and high economic benefits are achieved.

Description

A kind of pile crown node waterproof treating apparatus
Technical field
The utility model relates to technical field of building construction, particularly relates to a kind of pile crown node waterproof treating apparatus.
Background technology
Pile crown way two in the BJ series atlas " 08BJ6-1 underground project waterproof " that architectural design standard office of existing pile crown node waterproof processing employing North China writes.By the in-depth analysis to this pile crown waterproofing node, in work progress, find to construct according to atlas way, not only single pile long construction period, labour, machinery drop into more, cannot meet progress needs, the more important thing is that node waterproof construction is loaded down with trivial details, not only waterproofing materials consumption rate is larger, the more important thing is that being rigidly connected of pile body and waterproofing node is unfavorable for guaranteeing waterproof effect quality.The subject matter occurring in work progress is as follows:
1) because polymer cement waterproof mortar belongs to rigid material, be subject to after the bearing capacity load of top at pile body, there is the hidden danger of cracking, cause waterproof effect to lose efficacy.
2) end opening adopts 20 × 30mm putty type water-swellable sealing rod and 20 thick 1:2 waterproof polymer mortars to seal, and waterproof polymer mortar constructs at twice, exists and connects a batch hidden danger of quality, and difficulty of construction is large and the duration is longer.
3) while 10 × 10mm putty type water-swellable sealing rod being installed, because material is short and small, easily there is the closed uncompacted situation of sealing rod seam, have hidden danger of quality.
4) trapezoidal shape soil excavation, the artificial amount of labour used is large, needs the amount of earth excavation larger.
5) adopt trapezoidal basic unit, not only waterproofing materials need to do extra play, and the external corner part of waterproofing materials is easily torn destruction under external force, has hidden danger of quality.
Utility model content
The purpose of this utility model is to provide a kind of pile crown node waterproof treating apparatus, to overcome prior art above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of pile crown node waterproof treating apparatus, comprise pile crown, described pile crown top and inside are equipped with reinforcing bar, the reinforcing bar at described pile crown top be all tilted to and reinforcing bar top horizontally outward, described pile crown bottom is embedded in foundation bed, described pile crown foundation bed is around provided with the horn opening centered by pile crown, the foundation bed horizontal distribution of described horn opening periphery; The horizontal substrate soil layer of the inclined-plane of described horn opening and horn opening periphery is provided with concrete lift; Top, side and the concrete lift upper surface of described pile crown are provided with cement sand bed continuously, described pile crown cement sand bed is around provided with flexible waterproof material layer, near flexible waterproof material layer upper surface cement sand bed outside and the pile crown of described pile crown side is provided with continuous urethane sealant layer, and described urethane sealant layer outside is provided with the water-swellable seal ring centered by pile crown; Described urethane sealant layer outside and flexible waterproof material layer upper surface are equipped with continuous concrete cover, and the cement sand bed top at described concrete cover top and pile crown top is provided with concrete leveling layer.
Further, to be positioned at thickness on described horn opening inclined-plane identical for described concrete lift.
Further, concrete cover, flexible waterproof material layer, cement sand bed and the concrete lift of top, described horn opening inclined-plane are all along inclined-plane levelling.
Further, the upper surface level of described concrete leveling layer, the horizontal ends of the reinforcing bar at described pile crown top is positioned at concrete leveling layer.
The construction method of above-mentioned pile crown node waterproof treating apparatus, comprises the following steps:
1), cut pile crown top to design elevation;
2), centered by pile crown, pile crown foundation bed is around excavated, dig out a horn opening;
3), make absolute altitude tower cake;
4), concreting LIFT, casting process is disposable to be completed, and checks at any time concrete thickness in casting process;
5), the root of cleaning pile crown external surface and pile crown top rebars;
6), according to the thickness of pile crown external diameter and cement sand bed, prefabricated mould, utilizes the disposable painting of mould to wipe cement sand bed;
7), brushing urethane sealant layer in the annular region centered by pile crown above the cement sand bed outside of pile crown side and flexible waterproof material layer;
8) water-swellable seal ring is installed in the angle that, is positioned at urethane sealant layer in pile crown outside;
9), lay flexible waterproof material layer;
10), above urethane sealant layer outside and flexible waterproof material layer, lay concrete cover; And
11), lay concrete leveling layer, levelling is all imbedded and completed to the reinforcing bar at pile crown top.
Further, in described step 7, the brushing of urethane sealant layer comprises the following steps:
1), smear polyurethane coating with scraper plate, keep smearing thickness consistent; And
2), after the polyurethane coating smeared of first pass solidifies, carry out second time and smear, smear in direction and step 1 to smear direction perpendicular, smearing thickness is identical with first pass.
The beneficial effects of the utility model are: by improvements over the prior art, the quality of pile crown node is improved; Reduce earthwork excavated volume, saved human cost; Save material, reduced the generation of building waste, brought great economic benefit.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of a kind of pile crown node waterproof treating apparatus described in the utility model embodiment;
Fig. 2 is the partial enlarged drawing at the place of A shown in Fig. 1.
In figure:
1, pile crown; 2, reinforcing bar; 3, concrete lift; 4, cement sand bed; 5, flexible waterproof material layer; 6, urethane sealant layer; 7, water-swellable seal ring; 8, concrete cover; 9, concrete leveling layer.
The specific embodiment
As shown in Figure 1-2, a kind of pile crown node waterproof treating apparatus described in the utility model embodiment, comprise pile crown 1, described pile crown 1 top and inside are equipped with reinforcing bar 2, the reinforcing bar 2 at described pile crown 1 top be all tilted to and top horizontally outward, described pile crown 1 bottom is embedded in foundation bed, and described pile crown 1 foundation bed is around provided with the horn opening centered by pile crown 1, the foundation bed horizontal distribution of described opening periphery; The horizontal substrate soil layer of the inclined-plane of described horn opening and opening periphery is provided with concrete lift 3, and it is identical that described concrete lift 3 is positioned at thickness on horn opening inclined-plane; Top, side and concrete lift 3 upper surfaces of described pile crown 1 are provided with cement sand bed 4 continuously, and described pile crown 1 cement sand bed 4 is around provided with flexible waterproof material layer 5; Near flexible waterproof material layer 5 upper surface cement sand bed 4 outsides of described pile crown 1 side and pile crown 1 are provided with continuous urethane sealant layer 6; Described urethane sealant layer 6 outsides are provided with the water-swellable seal ring 7 centered by pile crown 1; Described urethane sealant layer 6 outsides and flexible waterproof material layer 5 upper surface are equipped with continuous concrete cover 8; Cement sand bed 4 tops at described concrete cover 8 tops and pile crown 1 top are provided with concrete leveling layer 9, the upper surface level of described concrete leveling layer 9, and the horizontal ends of the reinforcing bar 2 at described pile crown 1 top is positioned at concrete leveling layer 9.Concrete cover 8, flexible waterproof material layer 5, cement sand bed 4 and the concrete lift 3 of top, described horn opening inclined-plane are all along inclined-plane levelling.
The construction method of the pile crown node waterproof treating apparatus described in the utility model embodiment, comprises the following steps:
1), cut pile crown 1 top to design elevation, and qualified by inspection;
2), according to design drawing, centered by pile crown 1, within the scope of pile crown 1 φ 800mm, dig out a horn opening, the hypotenuse of horn opening below extends to a limit, the opening degree of depth is 300mm;
3), make absolute altitude tower cake, between tower cake, do floating screed, spacing 1.5m;
4), concreting LIFT 3, casting process is disposable to be completed, and checks at any time concrete thickness in casting process, concrete lift 3 thickness 100mm, and along inclined-plane levelling;
5), the root of cleaning pile crown 1 external surface and pile crown 1 top rebars 2, should keep clean, without scum silica frost, dust, reinforcing bar 2 should guarantee vertically in order to cover water-swellable seal ring 7.
6), according to the thickness of pile crown 1 external diameter and cement sand bed 4, prefabricated mould, adopts φ X(X=pile body+depth of plastering) construction of customization steel mould, guarantee that facade plane is without connecing raft, utilize the disposable painting of mould to wipe cement sand bed 4;
7), brushing urethane sealant layer 6 in the annular region centered by pile crown 1 above cement sand bed 4 outsides of pile crown 1 side and flexible waterproof material layer 5.Smear scope pile crown 1 and around within the scope of 250mm, brushing amount is not less than 1.5kg/ ㎡, thickness is not less than 1.0mm.Brushing process makes two bites at a cherry, and for the first time, smears polyurethane coating with scraper plate, keeps smearing thickness consistent, and applying amount is advisable with 0.6~0.8kg/m2, and brushing scope is within the scope of stake inner corner trim facade, plane 100mm; For the second time, the polyurethane coating smeared is for the first time smeared after solidifying for the second time, smear in direction and step 1 to smear direction perpendicular, smearing thickness is identical with first pass.
8) water-swellable seal ring 7 is installed in the angle that, is positioned at urethane sealant layer 6 in pile crown 1 outside; Water-swellable seal ring 7 adopts the water-swellable seal ring 7 with 20 × 30mm putty type water-swellable sealing rod same specification, installs smooth, firm.
9), lay flexible waterproof material layer 5;
10), above urethane sealant layer 6 outsides and flexible waterproof material layer 5, build the C20 pea gravel concreten topping 8 that 50mm is thick;
11), concrete leveling layer 9, levelling is all imbedded and completed to the reinforcing bar 2 at pile crown 1 top.
Work progress is complete.Install after 20 × 30mm water-swellable seal ring at pile body 1, carry out the laying of flexible waterproof material layer 5, and build in time the C20 pea gravel concreten topping 8 that 50mm is thick and construct.Flexible waterproof material layer 5 will be laid smooth, in laying flexible waterproof material layer 5, and concreting topping 8 at any time, casting method is constructed with concreting LIFT 3.
The construction method of a kind of pile crown node waterproof treating apparatus that the utility model embodiment proposes is further improvement of existing technologies, and concrete improvement is as follows:
1) hidden danger of quality of solution rigid material binding site increases brushing urethane sealant layer 6 within the scope of pile body and flexible waterproof material layer 5 inner corner trim 100mm.
Principle adopts similar water supply and sewerage pipeline through-flooring principle, and pile body and flexible waterproof material layer 5 and cement sand bed 4 are rigid material, be subject to vertical force do the used time at pile body, are prone to crack between rigid material, occur hidden danger of quality.By changing the angle of pile body and flexible waterproof material layer 5 inner corner trim, be controlled in 90 °, the characteristic that recycling polyurethane waterproof coating is flexible material, brushing is within the scope of inner corner trim, part material stream pendant collects to inner corner trim place simultaneously, form flexible closed circle, just in time solved the hidden danger of quality in rigidity crack.
2) solution polymer cement mortar connects the construction Difficulties of raft, utilizes the toughness of polymer mortar, adopts shaper.
According to stake footpath and depth of plastering, custom mold, assurance screed has once been constructed.Guarantee that polymer cement mortar processing nothing connects raft, stops hidden danger of quality.
3) solve the inc mass defect of water-swellable sealing rod.
The principle of utilizing the processing of water-swellable sealing rod through engineering approaches, is directly processed into water-swellable seal ring by water-swellable sealing rod in factory, fundamentally solves sealing rod and connects hidden danger of quality not in place.
4) technology of 45 ° of external corners that the solution stake limit earthwork, bed course produce, cancels extra play.
According to stressed relation, external corner waterproof roll under external force, easily first damages, and therefore, changes the angle of external corner, reduces external corner and concentrates stressed the produced destruction to waterproof roll itself.Therefore the mode that adopts soil excavation to be less than 30 °, solves this problem.
5) solve the caused time-consuming problem of artificial soil excavation
The mode that adopts soil excavation to be less than 30 °, is directly excavated to a limit, no longer adopts trapezoidal shape soil excavation, hand excavation is measured and greatly reduce.
The main beneficial effect that the utility model brings is as follows:
(1) economic benefit
1) artificial earthwork excavated volume greatly reduces, and efficiency is improved, and has shortened the duration simultaneously.
According to Beijing's quota, artificial soil excavation is 2m3/ working day.Before φ 800 single pile optimizations, earthwork excavated volume is 0.494m3, and on 4/working day per capita, after optimizing, excavated volume is 0.051m3.40/working day per capita.
2) material is saved, and has saved cost.Take φ 800 single piles as example, relate to material in table 1 material contrast table:
New departure effect consumable material contrast table after table 1 prior art and optimization
Be 2953.95 yuan/according to expense before upper list stake optimization, 1628.80 yuan/of expenses after optimizing, material and labour cost are saved 1325.15 yuan/.This engineering φ 800 castinplace piles amount to 674, amount to 893151.1 yuan of cost savings.Effect of optimization is very obvious.
(2) quality and benifit
The emphasis of optimizing is to guarantee waterproof quality how, and the quality assurance effect after optimization is very obvious.Be analyzed as follows:
1) change soil excavation angle, bed course, leveling layer generation Angulation changes thereupon, and the angle that makes waterproof roll tiling run into external corner diminishes, but there is not significant change in horn-like pile body structure, has but reduced the destruction of vertical to external corner waterproof.Reduce the destruction hidden danger of waterproof roll, guaranteed construction quality.
2) putty type water-swellable sealing rod is made into the water-swellable seal ring finished product of the same specification of batch production processing, fundamentally solved sealing rod and connected inc hidden danger.
3) the thick 1:2 polymer cement waterproof of pile body 20mm screed adopts the mould of φ 840, has effectively guaranteed polymer cement waterproof mortar construction quality, guarantees that pile crown polymer cement mortar processing nothing connects raft simultaneously, has once constructed, and has guaranteed construction quality.
4) increase brushing polyurethane water-proof, to optimize one of emphasis, bed course root and pile body become bed course by original 45 ° of horn-like chamferings and pile body exists an inner corner trim, brushing polyurethane water-proof after waterproof coiled material construction completes, this material belongs to flexible material, has part material stream pendant and collect to inner corner trim place after brushing, forms flexible closed circle, effectively solve rigidity material material inner corner trim and receive under External Force Acting as generation crack, can the stressed rigidity crack of bringing of shutoff.More guarantee pile body waterproof quality.
(3) social benefit
1) in the quality policy of " quality comes first in our mighty construction plan ", guarantee that workmanship is the most important thing of engineering construction, and be the waterproof quality in order effectively to guarantee pile crown node for the emphasis of optimizing, be the attitude responsible to engineering.
2) the situation is tense in the situation that, how controlling construction environmental protection at environment, reduce the impact on environment, is the social responsibility that building people must have, and how to reduce the impact on environment, is that the every little bit from work progress is done.This project is the optimization to pile crown node only, and the material of saving just relates to the multiple materials such as concrete, waterproof roll, mortar, therefore, in the saving of material, also reduces building waste, this build just people strengthen environmental consciousness one embody.
3) optimization of filling pile head waterproofing node also has popularizing action, and such as anti-float anchor rod stake etc. can adopt similar construction method construction, to meet the needs of duration, quality, environmental protection and saving material.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.

Claims (4)

1. a pile crown node waterproof treating apparatus, comprise pile crown (1), described pile crown (1) top and inside are equipped with reinforcing bar (2), it is characterized in that: the reinforcing bar (2) at described pile crown (1) top be all tilted to and reinforcing bar top horizontally outward, described pile crown (1) bottom is embedded in foundation bed, described pile crown (1) foundation bed is around provided with the horn opening centered by pile crown (1), the foundation bed horizontal distribution of described horn opening periphery; The horizontal substrate soil layer of the inclined-plane of described horn opening and horn opening periphery is provided with concrete lift (3); Top, side and concrete lift (3) upper surface of described pile crown (1) is provided with cement sand bed (4) continuously, described pile crown (1) cement sand bed (4) is around provided with flexible waterproof material layer (5), near flexible waterproof material layer (5) upper surface cement sand bed (4) outside and the pile crown (1) of described pile crown (1) side is provided with continuous urethane sealant layer (6), and described urethane sealant layer (6) outside is provided with the water-swellable seal ring (7) centered by pile crown (1); Described urethane sealant layer (6) outside and flexible waterproof material layer (5) upper surface are equipped with continuous concrete cover (8), and cement sand bed (4) top at described concrete cover (8) top and pile crown (1) top is provided with concrete leveling layer (9).
2. a kind of pile crown node waterproof treating apparatus according to claim 1, is characterized in that: it is identical that described concrete lift (3) is positioned at thickness on described horn opening inclined-plane.
3. a kind of pile crown node waterproof treating apparatus according to claim 1, is characterized in that: concrete cover (8), flexible waterproof material layer (5), cement sand bed (4) and the concrete lift (3) of top, described horn opening inclined-plane are all along inclined-plane levelling.
4. a kind of pile crown node waterproof treating apparatus according to claim 1, is characterized in that: the upper surface level of described concrete leveling layer (9), the horizontal ends of the reinforcing bar (2) at described pile crown (1) top is positioned at concrete leveling layer (9).
CN201320735459.7U 2013-11-19 2013-11-19 Pile head joint waterproof processing device Withdrawn - After Issue CN203603173U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572786A (en) * 2013-11-19 2014-02-12 中铁十六局集团北京工程有限公司 Pile head joint waterproof processing device and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103572786A (en) * 2013-11-19 2014-02-12 中铁十六局集团北京工程有限公司 Pile head joint waterproof processing device and construction method thereof
CN103572786B (en) * 2013-11-19 2015-12-16 中铁城建集团北京工程有限公司 A kind of pile crown node waterproof treating apparatus and construction method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: BEIJING ENGINEERING COMPANY LIMITED OF CHINA RAILW

Free format text: FORMER NAME: CHINA RAIWAY 16TH BUREAU GROUP BEIJING ENGINEERING CO., LTD.

CP03 Change of name, title or address

Address after: 100018, No. 2, building 2, North Court, North Korean pine garden, Beijing, Chaoyang District 8

Patentee after: BEIJING ENGINEERING COMPANY LIMITED OF CHINA RAILWAY URBAN CONSTRUCTION GROUP

Address before: 100015 Beijing City, Chaoyang District, China Railway sixteen Bureau of Road No. 2

Patentee before: China Railway 16th Bureau Group Beijing Engineering Co., Ltd.

C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: CHINA RAILWAY CONSTRUCTION ENGINEERING BUREAU NO.1

Effective date: 20150515

TR01 Transfer of patent right

Effective date of registration: 20150515

Address after: 100018, No. 2, building 2, North Court, North Korean pine garden, Beijing, Chaoyang District 8

Patentee after: BEIJING ENGINEERING COMPANY LIMITED OF CHINA RAILWAY URBAN CONSTRUCTION GROUP

Patentee after: China Railway Construction Engineering Bureau No.16 Group Corp., Ltd.

Patentee after: CHINA RAILWAY 16TH BUREAU GROUP URBAN CONSTRUCTION DEVELOPMENT CO., LTD.

Patentee after: Zhong Tie ChengJian Group Co., Ltd

Address before: 100018, No. 2, building 2, North Court, North Korean pine garden, Beijing, Chaoyang District 8

Patentee before: BEIJING ENGINEERING COMPANY LIMITED OF CHINA RAILWAY URBAN CONSTRUCTION GROUP

C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20140521

Effective date of abandoning: 20151216