CN100370082C - Construction method for installing plastic sounding pipe - Google Patents
Construction method for installing plastic sounding pipe Download PDFInfo
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- CN100370082C CN100370082C CNB2004100667365A CN200410066736A CN100370082C CN 100370082 C CN100370082 C CN 100370082C CN B2004100667365 A CNB2004100667365 A CN B2004100667365A CN 200410066736 A CN200410066736 A CN 200410066736A CN 100370082 C CN100370082 C CN 100370082C
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- sound detecting
- pipe
- detecting pipe
- reinforcing cage
- sound measuring
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Abstract
The present invention discloses a construction method for installing a plastic sound measuring pipe, which comprises the following steps: firstly, a sound measuring pipe in the same length of each of steel bar cages is fixedly connected with a main bar of each steel bar cage; secondly, a sealed head piece is glued at a sound measuring tube end part at the lowest section via glue agents, one end of a connecting piece is glued at the end part of the other end of the sound measuring tube via glue agents, and then, a hole is drilled on a hole drilling pile, one steel bar cage is put down, and the sound measuring tube is filled with water; thirdly, the second section of the steel bar cage is put down, the steel bar cage is fixed with the previous section of the steel bar cage, the sound measuring tube is connected with the sound measuring tube in the previous section of the steel bar cage via the connecting piece by the glue agents, and then, the sound measuring tube is fully filled with clear water, and the rest can be deduced by analogy, after the last section of sound measuring tube is fully filled with clear water, the sealed head piece uses the glue agents to glue the top end of the sound measuring tube; finally, concrete is poured and pugged. The present invention has the advantages of simple construction technology, low strength of worker construction, low cost, etc. and can be widely used for installaing a plastic sound measuring tube of a filling pile.
Description
Technical field:
The present invention relates to the building field job practices, specifically, is a kind of construction method of installation of castinplace pile being carried out the sound detecting pipe that ultrasound examination uses.
Background technology:
The supersonic sounding technology of castinplace pile integrity detection is to utilize the very high ultrasonic wave of frequency (20～500KHz) as information carrier, the method that concrete component is surveyed, because of its frequency height that adopts, wavelength weak point,, extremely sensitive to the reaction of defective so the resolution ratio of this method is high.Sound detecting pipe is the passage that castinplace pile carry out ultrasound examination time probe enters pile body inside, it is the important component part of castinplace pile ultrasonic wave detecting system, its pre-buried mode and arrangement form on the pile body cross section thereof in stake directly affects the quality of testing result.
Sound detecting pipe commonly used at present has steel pipe, steel bellows, plastic pipe.Adopt the steel sound detecting pipe that following shortcoming is arranged: sound detecting pipe construction technology complexity; Because steel pipe weight is heavier, workman's construction intensity is big; And steel pipe is unfavorable for the transmission of sound wave, the poor accuracy of test; From considering the cost height economically.And the sound detecting pipe of employing nonmetals such as plastic production, then can overcome the above-mentioned defective of steel sound detecting pipe, but exist with concrete caking ability low, easily pressurized and the shortcoming that buckles etc. and to be difficult for overcoming etc., adopt conventional method to install, even adopt conventional method to install, can not reach sounding effect preferably, therefore in bored pile, seldom be used.
Therefore, study a kind of construction method of installation of sound detecting pipe of plastic production, be construction sector very expectation.
Summary of the invention:
Technical problem to be solved by this invention is to disclose a kind of construction method for installing plastic sounding pipe, to satisfy the needs of construction sector.
Construction method for installing plastic sounding pipe of the present invention comprises the steps:
(1) at first will fixedly connected with the main muscle of reinforcing cage with long plastic sounding pipe with reinforcing cage; Thereby guarantee the sound detecting pipe position accurately be connected synchronously with reinforcing cage;
Plastic sounding pipe is selected a kind of in PVC, UPVC, the polypropylene for use.
(2) end socket spare is adhered to by bonding agent descends joint sound detecting pipe end most, an end of connector is adhered to the other end end of sound detecting pipe by bonding agent;
(3) to the drilled pile cleaning bottom of hole, the end that cage under the reinforcing cage, sound detecting pipe have connector makes progress, and fills with clear water in sound detecting pipe;
Cage under (4) the second joint reinforcing cages is fixed reinforcing cage and last joint reinforcing cage, and sound detecting pipe utilizes by connector that sound detecting pipe is connected in the bonding and last joint reinforcing cage of bonding agent, then fills with clear water in sound detecting pipe; After the final section sound detecting pipe is filled with clear water, end socket is bondd with bonding agent and sound detecting pipe top.
To compare steel pipe relatively poor because of the ring stiffness of sound detecting pipe tube material, do not accomplish in time to pour water during as construction, will cause the distortion of sound detecting pipe because external and internal pressure is big, so material is whenever transferred a joint reinforcing cage, after installing pvc pipe, must fill with clear water immediately, poor with the balance external and internal pressure.
(5) casting and compacting of concrete.
Owing to adopt as above technical scheme, it is as follows that the present invention and existing sound detecting pipe construction method of installation are compared beneficial effect:
(1) the sound detecting pipe construction technology is easy, connects to adopt special joint and glue special, and directly socket joint just can use, and the engineering time is short, and is favourable to the construction quality of drilled pile.
(2) because the present invention adopts plastic pipe to replace conventional steel as sound detecting pipe, compare light weight with steel pipe, workman's construction intensity can reduce greatly; Plastic pipe is compared with steel pipe and is helped the sound wave transmission, improves the accuracy of test; Compare with steel pipe, greater advantage is arranged on the economic indicator, can improve the market competitiveness.
(3) the present invention takes the method for pouring water in work progress, balance the plastic pipe external and internal pressure, in castinplace pile, exist as sound detecting pipe thereby solved plastic pipe, low with concrete caking ability, pressurized and shortcomings such as flexural deformation easily.
Description of drawings
Fig. 1 is a single-unit reinforcing cage structural representation of the present invention
Fig. 2 is a sound detecting pipe connector structural representation of the present invention
Fig. 3 is a sound detecting pipe end socket spare structural representation of the present invention
Fig. 4 is the A-A sectional view of Fig. 1
Fig. 5 is a reinforcing cage syndeton schematic diagram of the present invention
The specific embodiment:
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing
Consider that conventional plastic pipe uses under pressure-less state, use as sound detecting pipe, and guarantee that the degree of depth about 50 meters is not destroyed under water, must have enough intensity and toughness to satisfy.The present invention adopts the special UPVC reinforced pipe of internal diameter 50 in the specific embodiment, 9 meters of standard pipe ranges, and thickness of pipe wall 3mm is as sound detecting pipe.Certainly plastic pipe of the present invention is not limited to the UPVC plastic pipe.
Construction method for installing plastic sounding pipe of the present invention comprises the steps:
(1), will fixedly connected with the main muscle 2 of reinforcing cage with long plastic sounding pipe 3 with reinforcing cage 1 referring to Fig. 1, Fig. 4; The colligation of every joint reinforcing cage is 3 sound detecting pipes 3, the uniform reinforcing cage inside circumference that is fixed on of sound detecting pipe, and every sound detecting pipe is connected with the reinforcing cage master muscle of relevant position, and it is firm to adopt about 2 meters at every interval to prick the iron hook colligation with iron wire.Need guarantee to be parallel to each other between the sound detecting pipe or are substantially parallel, if the sound detecting pipe over-tilting will have a strong impact on the quality of detection.If when testing result need be made assessment to the concrete intensity of each test point, the nonparallelism between the sound detecting pipe should be controlled at below 1%, and puts into a Kong Shiying at reinforcing cage and be strictly on guard against the phenomenon that is distorted.
(2), an end of connector 4 is adhered to an end end of sound detecting pipe by bonding agent referring to Fig. 2, Fig. 3; Connector 4 adopts the special spigot-and-socket casing joint of 8cm length, 3mm wall thickness, thereby has guaranteed the density of interface.It is bonding to descend most joint sound detecting pipe end to pass through bonding agent with end socket spare 5, adopts the special spigot-and-socket cover channel closure of 4cm length, 3mm wall thickness, seals descending most the joint sound detecting pipe.End socket spare 5 directly bonds with the bonding employing PVC plastics adhesive special of connector 4 with sound detecting pipe, as adopts the green rich board bonding agent of sea green rich plastic cement Co., Ltd, and the bonding time of glue guaranteed binding strength between 10～15 minutes.When reinforcing cage connects, weld sound detecting pipe place reinforcing bar earlier, bonding again sound detecting pipe connector welds other part reinforcing bars at last.
(3) to the drilled pile cleaning bottom of hole, the aperture hole deviation of drilled pile will have influence on transferring of sound detecting pipe, thus require before descending reinforcing cage, to carry out one time cleaning bottom of hole again, and carry out the test of aperture hole deviation, under the prerequisite that test meets design requirement, carry out the following cage of reinforcing cage again.Under the reinforcing cage during cage, an end that has a connector 4 upwards, smoothness when guaranteeing sounding.In sound detecting pipe, fill with clear water then;
Cage under (4) the second joint reinforcing cages, reinforcing cage and the welding of last joint reinforcing cage is fixing, two joint reinforcing cages carry out when welding fixedly as follows, the first reinforcing cage at the fixedly connected sound detecting pipe of welding place, it is mutually bonding then the other end of sound detecting pipe connector in an end of another identical plastic sounding pipe in the second joint reinforcing cage and the last joint reinforcing cage to be passed through bonding agent; Tack time will be fixed away from other position reinforcing cages of sound detecting pipe place between 10 to 15 minutes again.So both avoided the destruction of reinforcing cage welding, guaranteed cohering the time of sound detecting pipe again sound detecting pipe.To compare steel pipe relatively poor because of the ring stiffness of pvc pipe material, the welding quality of reinforcing cage and straight degree will have influence on transferring of sound detecting pipe, therefore the reinforcing cage welding is taked to carry out symmetrically and evenly, its verticality of first instrument detecting before the welding, proofreading and correct the back is welding, thereby guarantee the straight degree after the welding, the following cage (comprise sound detecting pipe transfer) of reinforcing cage is carried out smoothly.
Then in sound detecting pipe, fill with clear water.According to about 50 meters the degree of depth, by 1.3 mud balance, pressure is about 6.5 kilograms, and the pressure of sound detecting pipe is about 1.5 kilograms after the balance.
To be banded with cage under the reinforcing cage of sound detecting pipe successively, under every joint reinforcing cage during cage, all to guarantee its directionality, an end that both had been connected with connector makes progress, all play cage up to the reinforcing cage that satisfies the castinplace pile degree of depth, after the final section sound detecting pipe is poured water, with end socket 5 usefulness bonding agents and sound detecting pipe top bonding, adopt the special spigot-and-socket cover channel closure of 4cm length, 3mm wall thickness, sound detecting pipe is sealed.
(5) casting and compacting of concrete.Control the concrete speed of smashing of watering, accomplish that duty tears conduit open, the dismounting quantity that guarantees each conduit guarantees the drop of conduit inner concrete and drilled pile inner concrete about 3 joints, reduce amplitude and frequency that conduit spurs up and down, may be thereby reduce to the destroying infection of sound detecting pipe generation.
Test and acceptance criteria are as follows: the drop impact index is produced and is checked and accepted by 110 pipe standards and (reaches 2 kilograms surge, 2 meters of height of the falls, 10 hit not damaged, 1.5 kilograms of pressure greater than construction requirement), other indexs are produced and are checked and accepted by 75 pipe standards, make it to compare with the 50PVC pipe of standard, ring stiffness is strengthened greatly.Result of the test sees the following form
| Sequence number | Pilot project | Index | Assay |
| 1 | Ring stiffness (KN/m2) | ＞2 | ＞2 |
| 2 | Surface density (g/cm2) | 0.9-1.2 | 0.95 |
| 3 | Flattening test | Do not destroy, be regardless of and take off | Do not destroy, be regardless of and take off |
| 4 | Falling weight impact test | TIR＜10％ | TIR＜10％ |
| 5 | Vertical relaxation shrinkage (%) | ＜5, be regardless of and take off, do not divide | Be regardless of and take off, do not divide |
After taking above-mentioned a series of safeguard measure, through siphunculus test, the siphunculus rate is more than 95%, detects the sample testing of unit through pile foundation, and most of pipeline has reached the requirement of test, and pipeline perforation rate reaches 95%.
Following table is that drilled pile PVC sound detecting pipe and steel pipe sound detecting pipe economic indicator compare:
| Project | The steel pipe sound detecting pipe | The PVC sound detecting pipe | Difference (unit/rice) |
| Raw material unit price (unit/rice) | 3300 yuan/ton 16.1 yuan/meter | 7.5 unit/rice | 8.6 unit/rice |
| The joint unit price | Casing coupling, silk tooth connect | Glue special connects 25 yuan/kg | 4.5 unit/rice |
| (unit/only) | 0.5 yuan of 4.5 yuan of casing coupling/only, silk tooth/only, 7 yuan of joints of 2.0 yuan of raw material bands/only amount to/only | Amount to 2.5 yuan of joints/only | |
| End socket pipe unit price (unit/only) | 0.5 yuan of silk tooth of 2.8 yuan of end socket pipes/only/only, 5.3 yuan of end socket pipes of 2.0 yuan of raw material bands/only amount to/only | 3 yuan of end socket pipes of 2.8 yuan of end socket pipes/only amount to/only | 2.3 unit/rice |
| Amount to every meter unit price (unit/rice) | 16.98 unit/rice | 7.84 unit/rice | 9.14 unit/rice |
From last table data as can be seen, adopting pvc pipe to replace steel pipe is considerable as the obtained economic benefit of sound detecting pipe.
Claims (5)
1. a construction method for installing plastic sounding pipe is characterized in that, comprises the steps:
(1) will fixedly connected with the main muscle of reinforcing cage with long plastic sounding pipe with reinforcing cage;
(2) end socket spare is adhered to by bonding agent descends joint sound detecting pipe end most, an end of connector is adhered to the other end end of sound detecting pipe by bonding agent;
(3) to the drilled pile cleaning bottom of hole, the end that cage under the reinforcing cage, sound detecting pipe have connector makes progress, and fills with clear water in sound detecting pipe;
Cage under (4) the second joint reinforcing cages, reinforcing cage and last joint reinforcing cage are fixed, elder generation is near the reinforcing cage of sound detecting pipe fixedly, and is then that an end of the second joint plastic sounding pipe in the second joint reinforcing cage is mutually bonding by bonding agent with the connector of first segment reinforcing cage sound detecting pipe; To fix away from sound detecting pipe place reinforcing cage again, then in sound detecting pipe, fill with clear water; After the final section sound detecting pipe is filled with clear water, end socket spare is bondd with bonding agent and sound detecting pipe top;
(5) casting and compacting of concrete.
2. construction method for installing plastic sounding pipe according to claim 1 is characterized in that, said plastics are selected from a kind of in PVC, UPVC, the polypropylene.
3. construction method for installing plastic sounding pipe according to claim 1 is characterized in that, said step (2) comprises that also reinforcing cage connects, and welds sound detecting pipe place reinforcing bar earlier, and bonding again sound detecting pipe connector welds other part reinforcing bars at last.
4. construction method for installing plastic sounding pipe according to claim 1 is characterized in that, said connector is the spigot-and-socket casing joint.
5. according to each described sound detecting pipe construction method of installation of claim 1 to 4, it is characterized in that every joint reinforcing cage comprises 3 sound detecting pipes, the uniform reinforcing cage inside circumference that is arranged on of sound detecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100667365A CN100370082C (en) | 2004-09-28 | 2004-09-28 | Construction method for installing plastic sounding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100667365A CN100370082C (en) | 2004-09-28 | 2004-09-28 | Construction method for installing plastic sounding pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1755016A CN1755016A (en) | 2006-04-05 |
| CN100370082C true CN100370082C (en) | 2008-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100667365A Expired - Fee Related CN100370082C (en) | 2004-09-28 | 2004-09-28 | Construction method for installing plastic sounding pipe |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851936B (en) * | 2010-06-10 | 2012-07-04 | 杭州银博交通工程材料有限公司 | Method for constructing plastic liner pulling steel tube ultrasonic detection holes |
| CN102277883A (en) * | 2011-05-10 | 2011-12-14 | 吴江市明港道桥工程有限公司 | Method for installing sound measurement tube |
| US9074473B2 (en) | 2011-06-07 | 2015-07-07 | Con-Tech Systems Ltd. | Hollow rebar for crosshole sonic logging access tubes and longitudinal concrete reinforcing in drilled shafts |
| CN102797268B (en) * | 2012-08-31 | 2014-05-07 | 机械工业勘察设计研究院 | Installation method for testing tube used for testing internal force of pre-stress tubular pile with slide micrometer |
| CN105672381B (en) * | 2016-04-12 | 2018-08-03 | 西南石油大学 | A kind of ultrasonic wave pile bottom sediment thickness detection apparatus and detection method |
| CN107419721B (en) * | 2017-09-01 | 2019-11-12 | 浙江省地矿建设有限公司 | Improve the method for the pre-buried sound detecting pipe survival rate of bored concrete pile and the Sound Surveillance System of bored concrete pile |
| CN108894259A (en) * | 2018-07-19 | 2018-11-27 | 中铁六局集团有限公司 | A kind of method of ultrasound examination subway construction of diaphragm wall quality |
| CN109853645B (en) * | 2019-04-01 | 2021-04-23 | 深圳宏业基岩土科技股份有限公司 | Construction method for preventing foundation pile from detecting acoustic pipe blockage |
| CN109826251B (en) * | 2019-04-01 | 2021-04-23 | 深圳宏业基岩土科技股份有限公司 | Prevent sounding pipe stifled foundation pile of pipe and detect construction structures |
| CN111287226B (en) * | 2020-02-24 | 2021-09-10 | 四川道诚建设工程检测有限责任公司 | A quick interfacing apparatus that is used for pile foundation quality detection pipe of large-scale bridge engineering |
| CN111719605A (en) * | 2020-07-10 | 2020-09-29 | 中国十七冶集团有限公司 | Method for enhancing resistance of deep hole bored concrete pile sounding pipe to concrete extrusion deformation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988110A (en) * | 1995-09-21 | 1997-03-31 | Mitsubishi Heavy Ind Ltd | Method of diagnosing defect of foundation pile |
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2004
- 2004-09-28 CN CNB2004100667365A patent/CN100370082C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988110A (en) * | 1995-09-21 | 1997-03-31 | Mitsubishi Heavy Ind Ltd | Method of diagnosing defect of foundation pile |
Non-Patent Citations (3)
| Title |
|---|
| 桩基础试验. 李志成，高乔明，171-172，中国林业出版社. 2001 * |
| 超声检测灌注桩混凝土质量. 洪国富.公路，第7期. 2002 * |
| 钻孔灌注桩超声波检测工作经验. 夏启星.交通科技，第3期. 2003 * |
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| CN1755016A (en) | 2006-04-05 |
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Owner name: SHANGHAI CONSTRUCTION NO.5 GROUP CO.,LTD. Free format text: FORMER NAME: SHANGHAI NO.5 BUILDING CO., LTD. |
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Address after: 200062 1000 Cao Yang Road, Shanghai Patentee after: SHANGHAI CONSTRUCTION NO.5 (Group) Co.,Ltd. Address before: 200062 1000 Cao Yang Road, Shanghai Patentee before: Shanghai No.5 Constructional Engineering Co.,Ltd. |
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