CN103669422A - Waterproof construction method of pile head of anchor rod static pressure pile - Google Patents
Waterproof construction method of pile head of anchor rod static pressure pile Download PDFInfo
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Abstract
The invention discloses a waterproof construction method of a pile head of an anchor rod static pressure pile. The method comprises the following steps that a base plate cushion layer is constructed; steel plate waterproof casing pipes are embedded; a waterproof system is constructed; base plate reinforcing steel bars are bundled, concrete is poured, so that a structural base plate is formed, and a pile pressing hole is reserved; after the concrete strength of the structural base plate meets the requirement, the static pressure pile is pressed to be constructed to a projected depth; pile splicing construction of the static pressure pile is carried out; pile breaking and sealing construction of the static pressure pile is conducted; after the pile end of the static pressure pile is completely closed, a base plate top face waterproof layer is constructed. By means of the waterproof construction method of the pile head of the anchor rod static pressure pile, the technical problem of waterproof construction at the joint of the subsurface structure self-waterproofing base plate and the pile head of the anchor rod static pressure pile is solved, due to design of the steel plate waterproof casing pipes, additional arrangement of a waterproof paint layer, optimization of the mode of the pile pressing hole and the like, a foundation is reinforced, watertightness is also strongly guaranteed, operation is simple in the constructing process, construction is convenient and fast, constructing efficiency can be improved, meanwhile, structural attractiveness is guaranteed, and the popularization and application prospect is wide.
Description
Technical field
The invention belongs to underground space engineering base plate waterproof field, specifically, relate to a kind of anchor rod static pressure pile head waterproof construction method.
Background technology
Because most municipal engineering are the comprehensive pivot buildings that integrate track traffic, Public Transport Junction, social parking lot and elevated road, service load complexity can cause uneven settlement of foundation, and underground space engineering construction area is larger, the local geological conditions that can run into extreme difference, therefore, after the sole plate of its supporting underground construction has been constructed, need to carry out local foundation reinforcement for the position of geological condition extreme difference.Because local ground reinforcing construction is just to carry out after sole plate completes, so large-scale machinery does not possess working space, can only adopt the form of anchor jacked pile to carry out local ground reinforcing construction.Anchor jacked pile machinery is simple, easy to operate, have noise little, shockproof, without spoir and mud contamination, the feature such as mobile flexible, can under place and space-constrained condition, construct, but also can operation when not interrupting engineering progress.
In addition, have the important power equipment rooms such as high-voltage transforming chamber, switchgear house, power and lighting control room due to underground space engineering, so underground space engineering waterproofing grade is strict, structure does not allow infiltration.Underground space engineering base plate waterproof comprises: the waterproof roll layer above the bed course of base plate bottom surface, base plate self-waterproof concrete layer, plate top surface waterproofing course three road waterproof.But after local foundation reinforcement anchor rod static pressure pile driving construction completes; waterproof roll layer below, the two-layer waterproof of base plate self-waterproof concrete layer lost efficacy; only surplus uppermost plate top surface waterproofing course is brought into play function, so usually there will be infiltration phenomenon in pile crown position.Tracing it to its cause is in the middle of construction, to have ignored the waterproof of anchor rod static pressure pile head Nodes, although architecture basics has obtained reinforcement, waterproof but goes wrong, so that the use function of structure is caused to harmful effect.Therefore need to study a kind of construction method of anchor rod static pressure pile head waterproof, with guarantee piling complete after the waterproof construction effect of anchor rod static pressure pile head reach drawing and code requirement.
Summary of the invention
What the present invention will solve is that underground structure is from the technical problem of waterproof base plate and anchor rod static pressure pile head joint waterproof construction quality, a kind of anchor rod static pressure pile head waterproof construction method is provided, avoid static pressed pile piling operation imperfection and the piling that causes complete after pile crown infiltration.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
An anchor rod static pressure pile head waterproof construction method, this construction method is carried out in accordance with the following steps:
(1) bottom cushion construction, determines piling point position, the bed course section in reserved piling hole;
(2) pre-embedded steel slab water string, described steel plate water string is the four vertical steel plate and four sleeve structures that the horizontal steel plate that is positioned at outside surrounds that are positioned at inner side, four vertical steel plate the latter halfs described in when pre-buried in steel plate water string are inserted in the bed course section in piling hole, and simultaneously four blocks of horizontal steel plates in steel plate water string ride on the bottom cushion of bed course section surrounding in piling hole;
(3) perform waterproof system:
A. the part brushing self-closing polymer waterproof coating material layer more than horizontal steel plate at four horizontal surface of steel plate of described steel plate water string and four vertical steel plate external surfaces;
B. on described self-closing polymer waterproof coating material layer, perform waterproof roll enhancement Layer and waterproof roll layer, described waterproof roll enhancement Layer and described waterproof roll layer are laid on four horizontal surface of steel plate and four vertical steel plate external surfaces position more than horizontal steel plate of described steel plate water string, and this position is the height and position that base plate fish tail and waterproof layer top mark height returns the width place of slow swollen type water-swellable sealing adhesive tape downwards;
C. four vertical steel plate peripheries at described steel plate water string arrange the slow swollen type water-swellable sealing adhesive tape of a circle, and described slow swollen type water-swellable sealing adhesive tape is by waterproof roll enhancement Layer and waterproof roll layer end-blocking;
D. the surface concreting of the described waterproof roll layer on described bottom cushion until with described slow swollen type water-swellable sealing adhesive tape upper surface flush, as base plate fish tail and waterproof layer, described steel plate water string is fixed simultaneously;
(4) base plate steel bar binding concreting form structure base slab, reserve the floor section in described piling hole, and the floor section vertical cross-section in described piling hole is that end opening is upper greatly young trapezoidal;
(5) concrete strength until structure base slab 4 reaches after requirement, by static pressed pile 7 pressing pile constructions to projected depth;
(6) static pressed pile 7 pile connection constructions;
(7) static pressed pile 7 broken piles, envelope pile driving construction;
(8) 7 ends of static pressed pile all perform plate top surface waterproofing course 5 after sealing.
The invention has the beneficial effects as follows:
The present invention is by the research to local foundation reinforcement anchor jacked pile work progress, solved the technical problem of underground structure from waterproof base plate and anchor rod static pressure pile head joint waterproof construction, by designing steel plate water string and setting up waterproof coating layer, and optimization piling well format etc., formed a set of complete technical scheme, anchor rod static pressure pile head waterproof construction method is provided, the perfect construction method of anchor jacked pile as basic reinforcement, not only machinery is simple to make anchor jacked pile technology, easy to operate, noise is little, shockproof, without spoir and mud contamination, mobile place and the spatial limitation of being subject to flexibly and not, and ground stabilization quality is guaranteed, waterproof effect can meet design requirement and use functional requirement, compare with other foundation reinforcing construction method employings have advantages of incomparable.This technical operation is simple, constructs convenient, can improve efficiency of construction, and not only basis has obtained reinforcement, and waterproof also obtains strong guarantee, guarantees that structure is attractive in appearance simultaneously, and popularizing application prospect is extensive.
Accompanying drawing explanation
Fig. 1 is the construction schematic diagram of anchor rod static pressure pile head waterproof construction method provided by the present invention;
Fig. 2 is the partial enlarged drawing of A part in Fig. 1;
Fig. 3 is the structural representation of steel plate water string provided by the present invention;
Fig. 4 is the 1-1 sectional view of Fig. 3.
In figure: 1, bottom cushion; 2, piling hole; 3, steel plate water string; 4, structure base slab; 5, plate top surface waterproofing course; 6, micro expansive concrete; 7, static pressed pile; 8, stone bolt; 9, base plate fish tail and waterproof layer; 10, self-closing polymer waterproof coating material layer; 11, waterproof roll enhancement Layer; 12, waterproof roll layer; 13, slow swollen type water-swellable sealing adhesive tape.
The specific embodiment
Below the present invention is described in further detail, following examples can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.
As depicted in figs. 1 and 2, the present embodiment discloses a kind of anchor rod static pressure pile head waterproof construction method, specifically carries out in accordance with the following steps:
(1) bottom cushion 1 construction, determines piling point position.
First build bottom cushion 1, in conjunction with meter ruler, determine piling central point, piling hole 2 center superpositions that piling central point must reserve with needs, finally carry out piling centre mark with reinforcing bar mark.
When building bottom cushion 1, size according to piling hole 2 reserved locations and 2 end of piling hole mouth installs template, to reserve the bed course section in piling hole 2 at bottom cushion 1 building after bottom cushion 1 completes, concrete strength reaches the bed course section that stripping after requirement forms piling hole 2.
(2) pre-embedded steel slab water string 3.
As shown in Figure 3 and Figure 4, steel plate water string 3 comprises four blocks of vertical steel plates and four sleeve structures that horizontal steel plate surrounds, and wherein four blocks of vertical steel plates are positioned at inner side, four blocks of horizontal steel plates are positioned at outside, and head and the tail welding forms in turn respectively.
Four vertical steel plate external dimensions in steel plate water string 3 are consistent with the bed course section opening size in piling hole 2, so that four vertical steel plate the latter halfs in steel plate water string 3 can be inserted in the bed course section in piling hole 2, simultaneously in steel plate water string 3, four blocks of horizontal steel plates ride on the bottom cushion 1 of bed course section surrounding in piling hole 2, and bottom cushion 1 is as the support of steel plate water string 3.
Steel plate water string 3 machines outside field, to guarantee size and the welding quality of steel plate water string 3.While burying underground, draw and establish cross hairs, guarantee position level and with piling hole 2 centerings.Steel plate water string 3 is the first line of defences of static pressed pile pile crown waterproof, is also most important defence line, and technician need control said process all-the-way tracking.
(3) perform waterproof system.
First, at steel plate water string 3 outside coating self-closing polymer waterproof coating material layers 10, concrete brushing is the part more than horizontal steel plate at four horizontal surface of steel plate and four vertical steel plate external surfaces, and self-closing polymer waterproof coating material layer 10 extends to bottom cushion 1 surface of four horizontal steel plate peripheries.
Secondly; on self-closing polymer waterproof coating material layer 10, perform waterproof roll enhancement Layer 11 and waterproof roll layer 12; waterproof roll enhancement Layer 11 and waterproof roll layer 12 are laid on four horizontal surface of steel plate and four vertical steel plate external surfaces and return 3cm position to base plate fish tail and waterproof layer 9 top mark relative superiority or inferiority more than horizontal steel plates, to guarantee follow-up construction waterproof effect.Waterproof roll enhancement Layer 11 extends to outside the self-closing polymer waterproof coating material layer 10 on bottom cushion 1 surface, and waterproof roll layer 12 extends to outside the waterproof roll enhancement Layer 11 on bottom cushion 1 surface, to form the state of outer lamination internal layer.
Then, in four vertical steel plate peripheries of steel plate water string 3, the slow swollen type water-swellable sealing adhesive tape 13 of a circle is set, this slow swollen type water-swellable sealing adhesive tape 13 is for carrying out end-blocking to waterproof roll enhancement Layer 11 and waterproof roll layer 12.
Finally, concreting on the waterproof roll layer 12 on bottom cushion 1 top until with slow swollen type water-swellable sealing adhesive tape 13 upper surface flush, as base plate fish tail and waterproof layer 9, steel plate water string 3 is also fixed immediately.
(4) base plate steel bar binding and concreting, when base plate steel bar binding, reserve the floor section in piling hole 2, the floor section vertical cross-section in piling hole 2 is that end opening is greatly upper young trapezoidal, thereby guarantee the sealing of hole concrete compaction of second pouring, avoid causing due to base plate counter-force the phenomenon of concrete cracking.
Pre-buried fixedly pile press stone bolt 8 used after reinforcing bar binding completes, stone bolt 8 adopts annular anchor slab pre-buried, and stone bolt 8 plugs are welded on annular anchor slab thoroughly, and stone bolt 8 tops adopt reinforcing bar cross weld to position; Then concreting, as structure base slab 4, reserves the floor section in piling hole 2.
(5) after the concrete strength of structure base slab 4 reaches requirement, carry out pressing pile construction, static pressed pile 7 adopts the mode of static pressure, take Stress Control as main, and the stake compression distance of take is controlled as auxiliary.
The strict piling speed of controlling during piling.Early stage, pile driving pressure was not excessive, and Slow loading avoids early stage pile driving pressure excessive, causes unstability.Piling process should continue, and must not pause midway, if essential pause midway, pile top should rest on soft stratum, and the dead time must not be over 24 hours.When static pressed pile 7 reaches projected depth.After holding lotus 5min, finish pressing pile construction.In piling process, carry out piling record.
(6) static pressed pile 7 pile connection constructions, whether stake end place adopts and to be welded to connect, and should carefully check pile crown cleaning situation before welding, and checks that two sections of stakes are whether on same axis, vertical, just can welding after meeting the demands.During welding, by two welders welding simultaneously in the both sides of stake, make both sides stressed evenly, reduce distortion; After welding finishes, should check welding quality, inadequate to solder skip or weld bead height, should carry out in time repair welding.
(7) static pressed pile 7 broken piles, envelope pile driving construction, after piling finishes, static pressed pile 7 pile crowns arrive design elevations, seals stake and process, and do not reach design elevation, but reach design pile driving pressure, carry out sealing after broken pile processing again.End-blocking concrete adopts micro expansive concrete 6 perfusions, guarantees to vibrate quality during perfusion, guarantees concrete self-waterproof system.
(8) plate top surface waterproofing course 5 constructions.At 7 ends of static pressed pile, all after sealing, perform last plate top surface waterproofing course 5, last backfilling of earthwork.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make the concrete conversion of a lot of forms, within these all belong to protection scope of the present invention.
Claims (1)
1. an anchor rod static pressure pile head waterproof construction method, is characterized in that, this construction method is carried out in accordance with the following steps:
(1) bottom cushion construction, determines piling point position, the bed course section in reserved piling hole;
(2) pre-embedded steel slab water string, described steel plate water string is the four vertical steel plate and four sleeve structures that the horizontal steel plate that is positioned at outside surrounds that are positioned at inner side, four vertical steel plate the latter halfs described in when pre-buried in steel plate water string are inserted in the bed course section in piling hole, and simultaneously four blocks of horizontal steel plates in steel plate water string ride on the bottom cushion of bed course section surrounding in piling hole;
(3) perform waterproof system:
A. the part brushing self-closing polymer waterproof coating material layer more than horizontal steel plate at four horizontal surface of steel plate of described steel plate water string and four vertical steel plate external surfaces;
B. on described self-closing polymer waterproof coating material layer, perform waterproof roll enhancement Layer and waterproof roll layer, described waterproof roll enhancement Layer and described waterproof roll layer are laid on four horizontal surface of steel plate and four vertical steel plate external surfaces position more than horizontal steel plate of described steel plate water string, and this position is the height and position that base plate fish tail and waterproof layer top mark height returns the width place of slow swollen type water-swellable sealing adhesive tape downwards;
C. four vertical steel plate peripheries at described steel plate water string arrange the slow swollen type water-swellable sealing adhesive tape of a circle, and described slow swollen type water-swellable sealing adhesive tape is by waterproof roll enhancement Layer and waterproof roll layer end-blocking;
D. the surface concreting of the described waterproof roll layer on described bottom cushion until with described slow swollen type water-swellable sealing adhesive tape upper surface flush, as base plate fish tail and waterproof layer, described steel plate water string is fixed simultaneously;
(4) base plate steel bar binding concreting form structure base slab, reserve the floor section in described piling hole, and the floor section vertical cross-section in described piling hole is that end opening is upper greatly young trapezoidal;
(5) concrete strength until structure base slab reaches after requirement, by static pressed pile pressing pile construction to projected depth;
(6) static pressed pile pile connection construction;
(7) static pressed pile broken pile, envelope pile driving construction;
(8) static pressed pile stake end all performs plate top surface waterproofing course 5 after sealing.
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| CN201310662689.XA CN103669422B (en) | 2013-12-06 | 2013-12-06 | Waterproof construction method of pile head of anchor rod static pressure pile |
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| CN201310662689.XA CN103669422B (en) | 2013-12-06 | 2013-12-06 | Waterproof construction method of pile head of anchor rod static pressure pile |
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| CN103669422B CN103669422B (en) | 2015-07-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284310A (en) * | 2015-05-21 | 2017-01-04 | 中天建设集团有限公司 | In the case of a kind of big flow water, stake holes is drawn water drain envelope pile construction method |
| CN107386336A (en) * | 2017-06-27 | 2017-11-24 | 中国二十冶集团有限公司 | Pile crown node waterproof processing unit and its construction method |
| CN108331034A (en) * | 2018-04-03 | 2018-07-27 | 上海建工七建集团有限公司 | Pier nose formula anti-float anchor rod waterproofing node and its construction method |
| CN113914316A (en) * | 2021-11-08 | 2022-01-11 | 山东元琅建设工程有限公司 | Foundation pile pressing technological process of numerical control precision machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201137162Y (en) * | 2007-12-20 | 2008-10-22 | 青建集团股份公司 | Bottom board anti-floating anchor rod water proof processing structure |
| KR100878342B1 (en) * | 2008-03-17 | 2009-01-14 | 장성덕 | Non-exposure type waterproof construction method |
| CN201695408U (en) * | 2010-02-02 | 2011-01-05 | 中国建筑第四工程局有限公司 | Basement baseplate integrating water-proofing and drainage functions |
| CN201915399U (en) * | 2010-12-28 | 2011-08-03 | 中国建筑第六工程局有限公司 | Rigid-flexible waterproof structure of head of prestressed pipe pile |
| CN102155026A (en) * | 2011-04-22 | 2011-08-17 | 吴兆圣 | Waterproof method for precast pile head |
-
2013
- 2013-12-06 CN CN201310662689.XA patent/CN103669422B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201137162Y (en) * | 2007-12-20 | 2008-10-22 | 青建集团股份公司 | Bottom board anti-floating anchor rod water proof processing structure |
| KR100878342B1 (en) * | 2008-03-17 | 2009-01-14 | 장성덕 | Non-exposure type waterproof construction method |
| CN201695408U (en) * | 2010-02-02 | 2011-01-05 | 中国建筑第四工程局有限公司 | Basement baseplate integrating water-proofing and drainage functions |
| CN201915399U (en) * | 2010-12-28 | 2011-08-03 | 中国建筑第六工程局有限公司 | Rigid-flexible waterproof structure of head of prestressed pipe pile |
| CN102155026A (en) * | 2011-04-22 | 2011-08-17 | 吴兆圣 | Waterproof method for precast pile head |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284310A (en) * | 2015-05-21 | 2017-01-04 | 中天建设集团有限公司 | In the case of a kind of big flow water, stake holes is drawn water drain envelope pile construction method |
| CN106284310B (en) * | 2015-05-21 | 2018-06-15 | 中天建设集团有限公司 | Stake holes, which is drawn water, in the case of a kind of big flow water drains envelope pile construction method |
| CN107386336A (en) * | 2017-06-27 | 2017-11-24 | 中国二十冶集团有限公司 | Pile crown node waterproof processing unit and its construction method |
| CN108331034A (en) * | 2018-04-03 | 2018-07-27 | 上海建工七建集团有限公司 | Pier nose formula anti-float anchor rod waterproofing node and its construction method |
| CN113914316A (en) * | 2021-11-08 | 2022-01-11 | 山东元琅建设工程有限公司 | Foundation pile pressing technological process of numerical control precision machine tool |
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| CN103669422B (en) | 2015-07-22 |
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