CN1122744C - In-line measurer for diameter of chemical churning pile - Google Patents
In-line measurer for diameter of chemical churning pile Download PDFInfo
- Publication number
- CN1122744C CN1122744C CN 01111567 CN01111567A CN1122744C CN 1122744 C CN1122744 C CN 1122744C CN 01111567 CN01111567 CN 01111567 CN 01111567 A CN01111567 A CN 01111567A CN 1122744 C CN1122744 C CN 1122744C
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- China
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- churning pile
- diameter
- gage beam
- hydraulic cylinder
- chemical
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The present invention relates to an in-line measurer for the diameter of a chemical churning pile which can measure the diameter of a chemical churning pile when the chemical churning pile is in course of construction. The measurer is connected with a nozzle through threads on the end of a hydraulic cylinder body 3, a control piston 1 moves up under the function of an offsetting spring 2 and a gage beam 9 retracts when in an off-working state; under the function of high-pressure fluid, the control piston 1 moves down, the gage beam 9 opens according to the diameter of the chemical churning pile under the function of a measurement spring 13, and a computer figures out the diameter of the depth chemical churning pile according to the stress of a pressure sensor 14 when in a working state; the gage beam 9 and the hydraulic cylinder body 3 can rotate relatively to prevent the gage beam from being damaged.
Description
The invention belongs to churning method ground stabilization field.
Because high-pressure rotary jet grouting pile can improve the bearing capacity of ground, and can play the water seepage prevention effect, thereby is used widely in ground stabilization, seepage control projects such as urban construction Deep Foundation Excavation, municipal pipeline, subway, highway, railway, bridge, embankment.In the construction, whether rotary churning pile stake footpath reaches designing requirement directly has influence on ground stabilization quality and stagnant water effect, therefore, in time understands the rotary churning pile stake in the construction and directly seems very important.The rotary churning pile stake footpath detection method that adopts at present is to carry out digging measure or boring and coring, these two kinds of methods all need to carry out after the rotary churning pile pile body reaches certain intensity, thereby its cycle is long, efficient is low, be subjected to geological conditions etc. to influence big, wasteful and remedy difficulty afterwards.Still there is not the report of seeing in-line measurer for diameter of chemical churning pile through patent retrieval.
The object of the present invention is to provide a kind of in-line measurer for diameter of chemical churning pile, this device can directly carry out online detection to the rotary churning pile stake in the jet grouting pile construction process, in time adjust construction parameter according to testing result, guarantees that the rotary churning pile stake directly reaches designing requirement.
The object of the present invention is achieved like this: this device is made up of measurement and computing demonstration two parts; Measurement section adopts mechanical device, is made up of gage beam, support bar, support bar sliding sleeve, measuring spring, pressure sensor or displacement transducer, back-moving spring, control piston, hydraulic cylinder etc.The computing display part is made up of signal amplification circuit, single chip microcomputer or microcomputer, carry out data amplification, read, computing, demonstration and record.Measurement section links to each other with shower nozzle by the screw thread of hydraulic cylinder end, and the hydraulic cylinder epicoele communicates with the high pressure chest of shower nozzle.During off working state, do not have high-pressure fluid in the high pressure chest because of shower nozzle, control piston is subjected to move on the action of reset spring, and gage beam is in the stowed position.When carrying out on-line measurement, by the churning drilling rod with shower nozzle and measurement section down to the pile body projected depth, and the holding wire of pressure sensor derived ground along drilling rod link to each other with signal amplification circuit, single chip microcomputer or microcomputer.After churning begins, be subjected to the effect of the high-pressure fluid in the nozzle high-voltage chamber, control piston moves down, gage beam is released from the hydraulic cylinder bottom, gage beam opens according to rotary churning pile pile body diameter under the measuring spring effect, single chip microcomputer or microcomputer calculate this degree of depth rotary churning pile pile body diameter according to the application of force of measuring spring to pressure sensor or displacement transducer.When considering to run into the higher obstruction of intensity, gage beam is damaged in the sudden change radially of the same degree of depth in rotary churning pile stake footpath, is that drilling rod is designed to and can rotates relatively with gage beam and hydraulic cylinder, prevents the damage of measurement section.
In-line measurer for diameter of chemical churning pile of the present invention is compared with detection method in the past has following superiority: the one, and become and detect afterwards to monitor in advance, rotary churning pile stake warp in can online detection Hot work in progress, and adjust construction parameter at any time according to testing result, guarantee construction quality.The 2nd, to measure accurately, in-line measurer for diameter of chemical churning pile can be along the long change curve that provides a warp of stake, and detection method detected as excavation and can only excavate out than the superficial part pile body by the geological conditions restriction in the past; Boring and coring can only verify whether this place's stake reaches through, and can't measure actual value.The 3rd, save time, detection method was excavated and detected still that boring and coring all need carry out after rotary churning pile is affixed in the past, and the stand-by period is long, influences the construction period.The 4th, cost saving, detection method was excavated and was detected still that boring and coring all needs to expend more manpower or equipment in the past, and the time that detection itself spends is long.
Below in conjunction with Figure of description in-line measurer for diameter of chemical churning pile is described further.
Accompanying drawing is the sectional drawing of in-line measurer for diameter of chemical churning pile.
As shown in the figure, this device is made up of measurement and computing demonstration two parts.Measurement section adopts mechanical device, by control piston 1, back-moving spring 2, hydraulic cylinder 3, lower piston 4, sealing ring 5, snap ring 6, piston rod 7, rotating ring 8, gage beam 9, support bar 10, bearing pin 11, support bar sliding sleeve 12, measuring spring 13, pressure sensor 14, adjust nut 15, protection 16 etc. and form; The computing display part is made up of signal amplification circuit, single chip microcomputer or microcomputer.The screw thread of hydraulic cylinder 3 upper ends is used for linking to each other with shower nozzle, and hydraulic cylinder 3 epicoeles communicate with the high pressure chest of shower nozzle.During off working state, do not have high-pressure fluid in the high pressure chest because of shower nozzle, control piston 1 is used by back-moving spring 2 to move, and gage beam 9 is in the stowed position.When carrying out on-line measurement, by the churning drilling rod with shower nozzle and measurement section down to the pile body projected depth, and the holding wire of pressure sensor 14 derived ground along drilling rod link to each other with signal amplification circuit, single chip microcomputer or microcomputer.After churning begins, be subjected to the effect of the high-pressure fluid in the nozzle high-voltage chamber, control piston 1 moves down, gage beam 9 is released from hydraulic cylinder 3 bottoms, gage beam 9 opens under measuring spring 13 effects, because be subjected to around the rotary churning pile the not pressure of the pile soil body, gage beam 9 open radiuses are identical with rotary churning pile pile body radius size.Measuring spring 13 is used to provide the pressure of gage beam 9 open power and balance rotary churning pile surrounding soil, gage beam 9 open radiuses are more little, measuring spring 13 is stressed big more, gage beam 9 open radiuses are big more, measuring spring 13 is stressed more little, single chip microcomputer or microcomputer calculate this degree of depth rotary churning pile pile body diameter, the demonstration of the line data of going forward side by side and record according to the application of force of 13 pairs of pressure sensors of measuring spring or displacement transducer 14.Gage beam 9 is fixed on the rotating ring 8 by bearing pin 11, can rotate relatively between rotating ring 8 and the hydraulic cylinder 3, prevents to run into the higher obstruction of intensity, rotary churning pile stake footpath when radially the sudden change of the same degree of depth, the damage of measurement section.After churning finished, because of the effect of no high-pressure fluid in the nozzle high-voltage chamber, control piston 1 moved under back-moving spring 2 effects, and gage beam 9 is packed up under hydraulic cylinder 3 lower reaction, so that measurement section is proposed from boring.
Claims (1)
- In-line measurer for diameter of chemical churning pile; it is characterized in that: this device has one to be used for the hydraulic cylinder (3) that links to each other with the churning shower nozzle; control piston (1) is arranged in the hydraulic cylinder (3); back-moving spring (2); lower piston (4) and outwardly directed piston rod (7); rotating ring (8) and protection head (16) are installed on the piston rod (7); mechanical measurement arm (9) is installed on the rotating ring (8); support bar (10); support bar sliding sleeve (12); measuring spring (13); pressure sensor (14) and adjustment nut (15), pressure sensor (14) links to each other with computer by signal amplification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01111567 CN1122744C (en) | 2001-03-24 | 2001-03-24 | In-line measurer for diameter of chemical churning pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01111567 CN1122744C (en) | 2001-03-24 | 2001-03-24 | In-line measurer for diameter of chemical churning pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1376838A CN1376838A (en) | 2002-10-30 |
| CN1122744C true CN1122744C (en) | 2003-10-01 |
Family
ID=4659119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01111567 Expired - Fee Related CN1122744C (en) | 2001-03-24 | 2001-03-24 | In-line measurer for diameter of chemical churning pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1122744C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803346A (en) * | 2017-09-23 | 2018-03-16 | 南京律智诚专利技术开发有限公司 | A kind of workpiece automatic sorting device with PLC technology |
| CN110685594A (en) * | 2018-07-05 | 2020-01-14 | 中国矿业大学(北京) | Automatic drill carriage for coal mine rock roadway and construction method thereof |
| CN110376643B (en) * | 2019-07-26 | 2021-02-19 | 北京中岩大地科技股份有限公司 | Micro-seismic effect data processing method for jet grouting pile diameter detection |
| CN114472193B (en) * | 2022-01-06 | 2022-11-25 | 山东润通齿轮集团有限公司 | Bevel gear conveying and quality testing integrated device and using method thereof |
-
2001
- 2001-03-24 CN CN 01111567 patent/CN1122744C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1376838A (en) | 2002-10-30 |
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