CN105714768A - Application method of wall protecting fluid to pile foundation construction - Google Patents
Application method of wall protecting fluid to pile foundation construction Download PDFInfo
- Publication number
- CN105714768A CN105714768A CN201610133210.7A CN201610133210A CN105714768A CN 105714768 A CN105714768 A CN 105714768A CN 201610133210 A CN201610133210 A CN 201610133210A CN 105714768 A CN105714768 A CN 105714768A
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- China
- Prior art keywords
- retaining wall
- hole
- wall liquid
- pile foundation
- viscosity
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0045—Composites
Abstract
The invention belongs to the technical field of municipal bridge pile foundation construction and particularly relates to an application method of a wall protecting fluid to pile foundation construction. The method comprises steps as follows: (1) a stirring tank and a slurry storage tank are constructed; (2) the wall protecting fluid is prepared: (2.1) a sodium hydroxide solution is prepared; (2.2) an air compressor is started for ventilation, and powdery polyacrylamide is evenly added after the sodium hydroxide solution in the stirring tank is stirred; (2.3) viscosity detection is performed; (3) holes are drilled and the wall protecting fluid is pumped by a slurry pump for wall protection; (4) a reinforcement cage is lowered, and underwater concrete pouring is performed; (5) the wall protecting fluid is pumped to the slurry storage tank and is recycled. The method overcomes defects in the prior art and has the advantages that construction is simple, hole forming time is short, secondary hole cleaning is not required and the like.
Description
Technical field
The invention belongs to municipal administration Bridge Pile Foundation Construction technical field, be specifically related to a kind of retaining wall liquid application process in pile foundation construction.
Background technology
In bored pile construction process, often clear hole is not thorough, and stake week of being everlasting forms interlayer, is forming " cushion " at the bottom of stake.Cast-in-situ bored pile also exists the problem such as mud skin and pile bottom sediment thickness around pile body, had a strong impact on the bearing capacity of bored concrete pile.At present, pile foundation construction of the prior art bentonite slurry wall protecting method routinely is constructed, bentonite+Caustic soda+cellulose etc. is mainly adopted to prepare mud, three indexs of mud and relative density, sand factor and viscosity, index behind its clear hole is difficult to predict, sediment is often unsatisfactory, clear hole time charge duration.
The shortcoming of prior art mainly has: 1, sediment thickness is big；2, sand factor is high；3, mud skin depth；4, the clear hole time is long；5, produce mud amount big, increase slurry transportation ability；6, sediment thickness size not only affects the performance of end resistance, and the mudcake thickness of stake side also affects the performance of the frictional resistance of a side；7, civilized construction environment is poor.
Such as, application number be 201310370342.8 Chinese patent literature disclose a kind of Wall protection mud for super-deep underground diaphragm wall, calculate according to parts by weight and include component: bentonite 80-160 part；Soda 1-10 part；Carboxymethyl cellulose 0.5-8 part；Blanc fixe 10-50 part；Water 800-1200 part.Although this slurry coat method is in use, minimum can maintenance 120 hours, does not cave in, and the longest can keep 168 hours, can meet the construction requirement of ultra-deep underground continuous wall.But when if its shortcoming is to be used in pile foundation construction, it is easy to causing the index behind clear hole to be difficult to predict, sediment is often unsatisfactory, the problem of clear hole time charge duration.
Summary of the invention
It is an object of the invention to for the deficiencies in the prior art, it is provided that a kind of construct simple, the pore-forming time is short, without application process in pile foundation construction of the retaining wall liquid of secondary pile hole cleaning.
This invention address that the technical scheme of problem is: a kind of retaining wall liquid application process in pile foundation construction, comprise the steps:
(1) stirring pool and pulp storage tank construction；
(2) preparation retaining wall liquid, including:
(2.1) preparation sodium hydroxide solution: use pH reagent paper to test the pH value at the water source in stirring pool, the making concentration that is dissolved in the water by the sodium hydroxide of lamellar is the sodium hydroxide solution of 20%, described water source adds described sodium hydroxide solution and stirs 30 minutes, being adjusted to 8～9 with the pH value by described water source, water temperature controls at 20～30 DEG C；
(2.2) starting the polyacrylamide being uniformly added into powdery after the sodium hydroxide solution in stirring pool is stirred by air compressor ventilation, be stirred at least 2 hours by the serosity that mix is formed, mixing speed is 200 revs/min；
(2.3) viscosity detection: with engineering funnel viscosity meter inspection viscosity, viscosity controls within the scope of 20s～25s, if viscosity is more than 25s, direct dilute；If viscosity is less than 20s, extending mixing time, if viscosity not enough, is supplemented with polyacrylamide, be stirred for 1 hour, until the serosity in stirring pool meets formation retaining wall liquid after viscosity requires, the retaining wall liquid after completing uses after static 30 minutes；
(3) hole and extract retaining wall liquid retaining wall with slush pump: utilizing slush pump to take out retaining wall liquid to hole while boring, after having holed, shelve 30～60 minutes, then fish for sediment；
(4) transferring steel reinforcement cage, underwater gliders: transferred to hole by steel reinforcement cage, steel reinforcement cage is transferred after putting in place and installing conduit, carries out underwater gliders immediately；
(5) retaining wall liquid extracts to pulp storage tank: in step (4) while perfusion by hole in unnecessary retaining wall liquid draw back pulp storage tank, pulp storage tank adopts three grades of precipitations, clears up the boring mud in overfall.
Further, in described step (3), in the process of boring, ensure that in hole, the liquid level of mud is higher than more than casing base opening 0.5m；The handling speed of drill bit is reduced when drill bit comes in and goes out the aperture 5m degree of depth.
Further, in described step (3), in the later stage of boring, slow down rate of penetration from design hole depth 2～3m place.
Further, in described step (4), keeping plumbness during described steel reinforcement cage hand-hole, alignment position, hole is put down gently slowly；After each joint steel reinforcement cage is transferred and put in place, all hole depth is measured.
Further, in described step (4), transferring before steel reinforcement cage in hole, by the degree of depth measuring fathom metering-orifice, the degree of depth in the hole measured transfers steel reinforcement cage when reaching the degree of depth of design.
Further, described in described step (3), the power of slush pump is 7.5kW.
The action principle of retaining wall liquid of the present invention is:
Polyacrylamide (PAM) is high molecular polymer, and for the Slurry confection of process of driving piles, Main Function is in that the soil, sand and other impurity that produce in the stable of protection stake eye four wall and flocculation drilling process.Polyacrylamide has good water dissolution, particularly in take 8～9 pH value lysate time, its PAM can make the material of suspension pass through charge neutrality, bridge formation adsorption, play flocculation, this surface adsorption and bridge joint act on meeting doing the trick when creeping into, ensure stablizing of surrounding formation, simultaneously, this effect also can help the drilling cuttings that mud is bonding under being cut to greatest extent, making drill bit easily can take drilling cuttings out of from boring, being also effectively reduced the frictional resistance of fluid, thus improving efficiency of construction.
The invention have the benefit that
1, it is easily mixed configuration, easy construction；
2, maximizing raising drilling ability, improve rate of penetration, the pore-forming time is short；
3, pressure is provided to hole wall, it is ensured that borehole stability；
4, the bearing capacity of stake is increased；
5, without sediment, it is not necessary to 2 clear holes；
6, recovery utilization rate is high, saves construction cost；
7, environment friendly and pollution-free, greatly reduce civilized construction expense.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of retaining wall liquid of the present invention application process in pile foundation construction.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As it is shown in figure 1, the application process that a kind of retaining wall liquid is in pile foundation construction, comprise the steps:
(1) stirring pool and pulp storage tank construction；
(2) preparation retaining wall liquid, including:
(2.1) preparation sodium hydroxide solution: use pH reagent paper to test the pH value at the water source in stirring pool, the making concentration that is dissolved in the water by the sodium hydroxide of lamellar is the sodium hydroxide solution of 20%, described water source adds described sodium hydroxide solution and stirs 30 minutes, being adjusted to 8～9 with the pH value by described water source, water temperature controls at 20～30 DEG C；
(2.2) starting slow after the sodium hydroxide solution in stirring pool is sufficiently stirred for by air compressor ventilation, to be uniformly added into powdery polyacrylamide, be stirred at least 2 hours by the serosity that mix is formed, mixing speed is 200 revs/min；
(2.3) viscosity detection: with engineering funnel viscosity meter inspection viscosity, viscosity controls within the scope of 20s～25s, if viscosity is more than 25s, direct dilute；If viscosity is less than 20s, extending mixing time, if viscosity not enough, is supplemented with polyacrylamide, be stirred for 1 hour, until the serosity in stirring pool meets formation retaining wall liquid after viscosity requires, the retaining wall liquid after completing uses after static 30 minutes；
(3) hole and extract retaining wall liquid retaining wall with slush pump: utilizing slush pump to take out retaining wall liquid to hole while boring, hole wall is cemented to entirety with the addition of retaining wall liquid simultaneously, ensures that in hole, the liquid level of mud is higher than more than casing base opening 0.5m in the process of boring；Rig personnel puies forward, puts the handling speed of drill bit reduction drill bit when drill bit comes in and goes out the aperture 5m degree of depth, accomplishes gently to carry, put down gently, so can be prevented effectively from the generation of collapse hole accident；In the later stage of boring, namely from design hole depth 2～3m place, rate of penetration should be slowed down, so can sediment in effectively thorough cleaning hole；The power of described slush pump is 7.5kW；
The staff of rig notes the height keeping retaining wall liquid liquid level the moment, gives in time in hole and mends serosity, in addition it is also necessary to often measures the diameter of drill bit, and the size to ensure drill bit cannot be less than design aperture, but avoid reaming as far as possible；
After having holed, shelve 30～60 minutes, then fish for sediment；
(4) transferring steel reinforcement cage, underwater gliders: transfer before steel reinforcement cage in hole, by the degree of depth measuring fathom metering-orifice, the degree of depth in the hole measured transfers steel reinforcement cage when reaching the degree of depth of design；Being transferred to hole by steel reinforcement cage, steel reinforcement cage is transferred after putting in place and installing conduit, carries out underwater gliders immediately；Keeping plumbness during described steel reinforcement cage hand-hole, alignment position, hole is slowly put down gently, it is to avoid mandatory steel reinforcement cage of transferring causes steel reinforcement cage deformation or hole wall collapse, or hangs bad hole wall and cause thicker sediment to cause very big trouble to clear hole；After putting in place under each joint steel reinforcement cage, all hole depth is measured, in case sediment exceeds standard；
(5) retaining wall liquid extracts to pulp storage tank: in step (4) while perfusion by hole in unnecessary retaining wall liquid draw back pulp storage tank；Slush pump is placed on aperture, perfusion with underwater concrete, unnecessary retaining wall liquid rises to aperture can draw back pulp storage tank, and pulp storage tank adopts three grades of precipitations, the boring mud in cleaning overfall, it is further continued for as next holes protecting wall, so, retaining wall liquid, with regard to reusable edible, greatly reduces construction cost, meanwhile, civilized construction improves.
It is layer of sand stratomere that the retaining wall liquid of the present invention application process in pile foundation construction is particularly suitable for geological conditions, is not suitable for drifting sand layer, river course and hardpan pile foundation construction.
The present invention is not limited to above-mentioned embodiment, and when without departing substantially from flesh and blood of the present invention, any deformation that it may occur to persons skilled in the art that, improvement, replacement each fall within protection scope of the present invention.
Claims (6)
1. the retaining wall liquid application process in pile foundation construction, it is characterised in that comprise the steps:
(1) stirring pool and pulp storage tank construction；
(2) preparation retaining wall liquid, including:
(2.1) preparation sodium hydroxide solution: use pH reagent paper to test the pH value at the water source in stirring pool, the making concentration that is dissolved in the water by the sodium hydroxide of lamellar is the sodium hydroxide solution of 20%, described water source adds described sodium hydroxide solution and stirs 30 minutes, being adjusted to 8～9 with the pH value by described water source, water temperature controls at 20～30 DEG C；
(2.2) starting the polyacrylamide being uniformly added into powdery after the sodium hydroxide solution in stirring pool is stirred by air compressor ventilation, be stirred at least 2 hours by the serosity that mix is formed, mixing speed is 200 revs/min；
(2.3) viscosity detection: with engineering funnel viscosity meter inspection viscosity, viscosity controls within the scope of 20s～25s, if viscosity is more than 25s, direct dilute；If viscosity is less than 20s, extending mixing time, if viscosity not enough, is supplemented with polyacrylamide, be stirred for 1 hour, until the serosity in stirring pool meets formation retaining wall liquid after viscosity requires, the retaining wall liquid after completing uses after static 30 minutes；
(3) hole and extract retaining wall liquid retaining wall with slush pump: utilizing slush pump to take out retaining wall liquid to hole while boring, after having holed, shelve 30～60 minutes, then fish for sediment；
(4) transferring steel reinforcement cage, underwater gliders: transferred to hole by steel reinforcement cage, steel reinforcement cage is transferred after putting in place and installing conduit, carries out underwater gliders immediately；
(5) retaining wall liquid extracts to pulp storage tank: in step (4) while perfusion by hole in unnecessary retaining wall liquid draw back pulp storage tank, pulp storage tank adopts three grades of precipitations, clears up the boring mud in overfall.
2. the retaining wall liquid according to claim 1 application process in pile foundation construction, it is characterised in that in described step (3), ensures that in the process of boring in hole, the liquid level of mud is higher than more than casing base opening 0.5m；The handling speed of drill bit is reduced when drill bit comes in and goes out the aperture 5m degree of depth.
3. the retaining wall liquid according to claim 1 application process in pile foundation construction, it is characterised in that in described step (3), in the later stage of boring, slows down rate of penetration from design hole depth 2～3m place.
4. the retaining wall liquid according to claim 1 application process in pile foundation construction, it is characterised in that in described step (4), keeps plumbness during described steel reinforcement cage hand-hole；After each joint steel reinforcement cage is transferred and put in place, all hole depth is measured.
5. the retaining wall liquid according to claim 1 application process in pile foundation construction, it is characterized in that, in described step (4), transfer in hole before steel reinforcement cage, by the degree of depth measuring fathom metering-orifice, the degree of depth in the hole measured transfers steel reinforcement cage when reaching the degree of depth of design.
6. the retaining wall liquid according to claim 1 application process in pile foundation construction, it is characterised in that described in described step (3), the power of slush pump is 7.5kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133210.7A CN105714768A (en) | 2016-03-09 | 2016-03-09 | Application method of wall protecting fluid to pile foundation construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610133210.7A CN105714768A (en) | 2016-03-09 | 2016-03-09 | Application method of wall protecting fluid to pile foundation construction |
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| CN105714768A true CN105714768A (en) | 2016-06-29 |
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| CN201610133210.7A Pending CN105714768A (en) | 2016-03-09 | 2016-03-09 | Application method of wall protecting fluid to pile foundation construction |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433586A (en) * | 2016-07-29 | 2017-02-22 | 中航勘察设计研究院有限公司 | Organic slurry used for hole-boring cast-in place pile wall protection, and production method thereof |
| CN110029660A (en) * | 2019-02-15 | 2019-07-19 | 中科兴创（北京）科技有限公司 | The construction technology of polymer mud retaining wall is used in a kind of rotary drilling rig work progress |
| CN112227355A (en) * | 2020-10-26 | 2021-01-15 | 中国十九冶集团有限公司 | Dado construction method for rotary digging pile |
| CN113482626A (en) * | 2021-07-08 | 2021-10-08 | 上海市基础工程集团有限公司 | Method for reinforcing soil body at entrance and exit of high-pressure-bearing underwater shield |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4219150C1 (en) * | 1992-06-11 | 1993-09-23 | Bauer Spezialtiefbau Gmbh, 86529 Schrobenhausen, De | Underground mortar column prodn. - by drilling with auger through which hardenable suspension is fed |
| CN103510507A (en) * | 2013-07-02 | 2014-01-15 | 镇江市城乡建设基础工程有限公司 | Slurry protection wall construction method with holes formed in cast-in-situ bored pile sand soil layer |
| CN103951320A (en) * | 2014-04-16 | 2014-07-30 | 长安大学 | Mix proportion design method of seawater slurry with stable wall retaining property |
| CN104120716A (en) * | 2013-04-28 | 2014-10-29 | 杨哲 | Slurry wall protection construction method for bored pile |
| CN105154043A (en) * | 2015-09-07 | 2015-12-16 | 中铁七局集团郑州工程有限公司 | Bore forming and wall protecting slurry for deep saturated sandy soil stratum bridge bored pile |
| CN105236832A (en) * | 2015-09-23 | 2016-01-13 | 苏交科集团股份有限公司 | PHP mud manufacturing method and applications of PHP mud |
-
2016
- 2016-03-09 CN CN201610133210.7A patent/CN105714768A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4219150C1 (en) * | 1992-06-11 | 1993-09-23 | Bauer Spezialtiefbau Gmbh, 86529 Schrobenhausen, De | Underground mortar column prodn. - by drilling with auger through which hardenable suspension is fed |
| CN104120716A (en) * | 2013-04-28 | 2014-10-29 | 杨哲 | Slurry wall protection construction method for bored pile |
| CN103510507A (en) * | 2013-07-02 | 2014-01-15 | 镇江市城乡建设基础工程有限公司 | Slurry protection wall construction method with holes formed in cast-in-situ bored pile sand soil layer |
| CN103951320A (en) * | 2014-04-16 | 2014-07-30 | 长安大学 | Mix proportion design method of seawater slurry with stable wall retaining property |
| CN105154043A (en) * | 2015-09-07 | 2015-12-16 | 中铁七局集团郑州工程有限公司 | Bore forming and wall protecting slurry for deep saturated sandy soil stratum bridge bored pile |
| CN105236832A (en) * | 2015-09-23 | 2016-01-13 | 苏交科集团股份有限公司 | PHP mud manufacturing method and applications of PHP mud |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433586A (en) * | 2016-07-29 | 2017-02-22 | 中航勘察设计研究院有限公司 | Organic slurry used for hole-boring cast-in place pile wall protection, and production method thereof |
| CN110029660A (en) * | 2019-02-15 | 2019-07-19 | 中科兴创（北京）科技有限公司 | The construction technology of polymer mud retaining wall is used in a kind of rotary drilling rig work progress |
| CN112227355A (en) * | 2020-10-26 | 2021-01-15 | 中国十九冶集团有限公司 | Dado construction method for rotary digging pile |
| CN113482626A (en) * | 2021-07-08 | 2021-10-08 | 上海市基础工程集团有限公司 | Method for reinforcing soil body at entrance and exit of high-pressure-bearing underwater shield |
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Application publication date: 20160629 |
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