CN102226698B - Weight-type inclinometer - Google Patents
Weight-type inclinometer Download PDFInfo
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- CN102226698B CN102226698B CN201110078883A CN201110078883A CN102226698B CN 102226698 B CN102226698 B CN 102226698B CN 201110078883 A CN201110078883 A CN 201110078883A CN 201110078883 A CN201110078883 A CN 201110078883A CN 102226698 B CN102226698 B CN 102226698B
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Abstract
A weight-type inclinometer relates to a measuring device for bore hole inclination, and especially a measuring device for bore hole inclination in high-pressure grouting cutoff wall construction. The invention comprises an inclinometer pedestal and a weight, and the key technology is that a wall-protecting sleeve is connected to the bottom end of the inclinometer pedestal; a balance supporter is mounted at the upper end of the inclinometer pedestal; a centering disc is mounted at the upper end of the balance supporter; a center hole is opened at the center of the centering disc; a measuring rope passes through the center hole; one end of the measuring rope is wound on a hoist, and the other end is attached to a top center of the weight; the weight is located in the inclinometer. The device of the invention has simple structure, low cost, strong operationality during construction, simple and rapid process for inclination measurement, and is applicable to large-scale utilization. The device is not influenced by groundwater in the hole, hole size, or hole depth, has an inclination measurement precision of up to thousandth, is applicable to inclination measurement for deep holes, provides reliable guarantee for hole inclination measurement of deep holes in high-pressure grouting construction, and is completely suitable for requirements of construction with super strength and high difficulty.
Description
Technical field:
A kind of Weight type tiltmeter relates to a kind of boring hole deviation surveying instrument, the boring hole deviation surveying instrument in the especially high spray impervious wall construction.
Background technology:
In height spray impervious wall construction; The control of high spray boring hole deviation is the emphasis of restriction construction quality; The integral body that hole deviation is directly connected to high spray cut-off wall connects; Be into the key point of wall, will cause occurring between pile body serious consequences such as jag can't effectively overlap, so hole deviation control is one of emphasis of high spray impervious wall construction quality as hole deviation control is not in place.
The measurement of high at present spray boring hole deviation mainly contains two kinds of means, diamagnetic interference tiltmeter deviational survey and cursory deviational survey, but all there is following shortcoming in they:
1, diamagnetic interference tiltmeter, its advantage be the achievement data accurately and reliably, but the cost input is too high.Big for height spray impervious wall construction zone, the engineering that the duration is tight must a plurality of construction surface be carried out deviational survey work simultaneously; As do not increase the deviational survey instrument and will directly influence construction effect and progress, but every in diamagnetic interference deviational survey instrument purchases valency and surpasses 150,000, need once drop into procurement payment 90～1,200,000 yuan; And applying working condition is required high; Handle with care, maintenance rate is high, so diamagnetic interference tiltmeter is unfavorable for that large tracts of land is used in the high spraying construction in cofferdam.
2, but though cursory tiltmeter deviational survey data precision is reliable and large-area applications; But it is applicable to that shallow bore hole is dark, the large-diameter borehole deviational survey, and because of cursory deviational survey adopts " method of falling to hang down " principle, cursory the moving with the center, aperture with the deviational survey weight in its aperture becomes inverted triangle; By maximum deflection 1%; Calculate with managing and protecting wall casing inner diameter Ф 128mm, its can only measure hole depth be 7m with interior zone, use limitation bigger.So cursory tiltmeter can not adapt to big hole depth (more than maximum hole depth 50m), small-bore (as being Ф 128mm with managing and protecting the wall casing inner diameter) drillhole inclination survey.
Summary of the invention:
The problem that the present invention will solve exactly to above deficiency and provide a kind of simple in structure, cost is low, the tiltmeter that drillhole inclination survey adaptability is extensive.Its technical scheme is following:
It comprises tiltmeter base and weight, and its gordian technique is that tiltmeter base lower end connects protection casing, and balance bracket is installed in tiltmeter base upper end; The centering disk is installed in the balance bracket upper end; Have center pit in the centering disc centre, center pit has lining rope to pass, and lining rope one end is wrapped on the windlass; The other end ties up to the center, top of weight, and weight is positioned at tiltmeter.
Through test and contrast, the present invention has following beneficial effect:
1, apparatus of the present invention are simple in structure, with low cost, and it is workable in construction, and the deviational survey process is simple and efficient, are suitable for extensive use.
2, apparatus of the present invention are not influenced by underground water in the hole, aperture and hole depth; Its deviational survey precision can be up to per mille; Be applicable to deep hole deviational survey (more than the maximum hole depth 50m); For the measurement and the control of the high spraying construction hole deviation of deep hole provides reliable guarantee, be applicable to super-strength, highly difficult construction requirement fully.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a balance bracket structural representation of the present invention;
Fig. 3 is a weight structural representation of the present invention;
Fig. 4 is a weight vertical view of the present invention;
Fig. 5 is a tiltmeter understructure synoptic diagram of the present invention;
Fig. 6 is a protection casing structural representation of the present invention;
Fig. 7 is a tiltmeter deviational survey synoptic diagram of the present invention;
Fig. 8 is an aperture of the present invention offset distance instrumentation plan;
Fig. 9 is a hole deviation schematic diagram calculation of the present invention.
Embodiment:
Referring to Fig. 1-Fig. 6, the present invention includes tiltmeter base 2 and weight 3, its gordian technique is that tiltmeter base 2 lower ends connect protection casing 1; Balance bracket 5 is installed in tiltmeter base 2 upper ends, and centering disk 7 is installed in balance bracket 5 upper ends, has center pit 6 at centering disk 7 centers; Center pit 6 has lining rope 8 to pass; Lining rope 8 one ends are wrapped on the windlass 9, and the other end ties up to the center, top of weight 3, and weight 3 is positioned at tiltmeter.
The diameter of said centering disk 7 is 130-150mm, and thickness is 8-10mm, and the diameter of centering disk 7 is consistent with the external diameter of protection casing 1 and tiltmeter base 2.
Said lining rope 8 is the tiny steel cable of diameter 1-2mm, and its effect is to connect weight 3.
Said weight 3 is symmetrical hollow type module foundry goods, and the bleeder vent 11 of 4 symmetries is established on the top, transfers bleeder vent diameter 15-25mm smoothly fast to guarantee it; The length of weight 3 is 150-170mm, and weight internal diameter 70-80mm, weight radius are slightly less than tiltmeter base 2 radius 2.5mm, weight wall thickness 20-25mm.Guiding lining rope 8 is drawn in acting as of weight, and traction lining rope 8 to designation hole deep-seated is put,
Said balance bracket 5 is made up of the Ф 22mm round steel that six roots of sensation length equates, is divided into three groups, and every component is two parts up and down, and by leveling nut 4 two parts connection up and down, three groups of balance bracket equal angles are installed between tiltmeter base 2 and the centering disk 7; Leveling nut 4 two ends are provided with screw thread 10, and retractable is regulated its length, and its effect is an adjustment support local height, makes tiltmeter straight down, and lining rope and weight are regulated between two parties.
The lower end inner chamber of said tiltmeter base 2 is provided with internal sealing plug 12, and protection casing 1 upper end outer wall is provided with external sealing plug 13, and internal sealing plug 12 is complementary with external sealing plug 13, makes tiltmeter base 2 connect protection casings 1, and fixing tiltmeter.
Said windlass 9 connects and control lining rope 8 is transferred, for lining rope provides fulcrum.
During " Weight type " tiltmeter was connected and fixed on behind the protection casing deviational survey weight transferred, weight 3 traction lining ropes 8 overhang the center, aperture, make the center E point of tiltmeter centering disk 7 and center, aperture A point be connected to form straight line, guarantee that EA is perpendicular to ground.Adopt the silk mouth to be rigidly connected between tiltmeter base and the protection casing 1, the protection casing wall thickness reaches 6mm, adopts two button circular arc screw threads to be rigidly connected, and is straight line basically after whole sleeve pipe connects.Deviational survey process and principle are following:
1, when weight traction lining rope was transferred at the bottom of the hole along protection casing, lining rope is exceptionally straight be the straight line (see figure 7), and E is a centering disc centre point, and ED is the center line in vertical hole, the lining rope draught line when EC deflection occurs for holing.
2, suppose that at first this hole drill advances direction vertically downward, promptly accurately there is not deflection in this orientation, hole, and then the drill center line is ED (a theoretical lead straight line); Deflection occurs like boring, when lining rope is glided with protection casing by the weight traction, then form the EC (the lining rope draught line of supposition hole scattering) that constitutes certain angle with theoretical vertical drill center line, promptly lining rope changes through the position in aperture thereupon.
3, form an equilateral triangle △ EDC between the lining rope draught line behind theoretical vertical drill center line and the supposition hole scattering.
4, connect the position through the aperture of lining rope after center, aperture and the deflection and be the aperture deviation, lining rope is aperture offset distance, i.e. AB through the position and the distance between the central axis in aperture after the deflection.
5, utilize similar triangle theory, calculate the end deviation D C that portals, hole depth is a given value, thereby calculates the hole scattering rate.
Deviational survey method and step:
1, the Weight type tiltmeter is connected with protection casing 1, guarantees that the screw thread surface clean is clean and tidy, the assurance firm and reliable connection must not be rocked;
2, tiltmeter after fixing hovers weight in the center, aperture, by the verticality (making it straight down perpendicular to ground level) that leveling nut 4 is regulated tiltmeters, guarantees that weight center and center, aperture are consistent;
3, universal bevel protractor or cross being positioned over the aperture as object of reference, is initial point with cross O point, and X, Y direction are theoretical coordinate system, measures the distance of aperture lining rope in X axle and Y direction, draws the true origin A as the center, aperture with X1, Y1; The placement direction of cross X, Y axle must be consistent with prescribed direction, and guarantee that X must vertical its angle be 90 ° with Y direction; (as shown in Figure 8)
4, weight 3 traction lining ropes 8 are transferred to the prediction hole depth; Deflection occurs like boring then will change the position of lining rope through the center, aperture thereupon; With universal bevel protractor or cross is that X and the Y wheelbase of object of reference measurement lining rope in the aperture leaves, and promptly X2 and Y2 are the volume coordinate point B after deflection appears in boring.
5, will hole and (the X2 after the deflection occur; Y2) (X1 Y1) compares, and calculates the offset distance of corresponding X and Y axle with the aperture center origin; Be Δ X=X2-X1, Δ Y=Y2-Y1; Calculate the comprehensive offset distance a in aperture thus, according to " Weight type " deviational survey principle, thus offset distance (as shown in Figure 9) at the bottom of calculating hole scattering rate and the hole.
Claims (7)
1. a Weight type tiltmeter comprises tiltmeter base (2) and weight (3), it is characterized in that tiltmeter base (2) lower end connects protection casing (1); Balance bracket (5) is installed in tiltmeter base (2) upper end, and centering disk (7) is installed in balance bracket (5) upper end, has center pit (6) at centering disk (7) center; Center pit (6) has lining rope (8) to pass; Lining rope (8) one ends are wrapped on the windlass (9), and the other end ties up to the center, top of weight (3), and weight (3) is positioned at tiltmeter.
2. according to the said Weight type tiltmeter of claim 1, the diameter that it is characterized in that centering disk (7) is 130-150mm, and thickness is 8-10mm, and the diameter of centering disk (7) is consistent with the external diameter of protection casing (1) and tiltmeter base (2).
3. according to the said Weight type tiltmeter of claim 1, it is characterized in that lining rope (8) is the tiny steel cable of diameter 1-2mm.
4. according to the said Weight type tiltmeter of claim 1; It is characterized in that balance bracket (5) is made up of the round steel that six roots of sensation length equates, be divided into three groups, two parts about every component; By leveling nut (4) two parts connection up and down, leveling nut (4) two ends are provided with screw thread (10).
5. according to the said Weight type tiltmeter of claim 1, it is characterized in that weight (3) is symmetrical hollow type module foundry goods, the bleeder vent (11) of 4 symmetries is established on the top, bleeder vent diameter 15-25mm.
6. according to the said Weight type tiltmeter of claim 1, the length that it is characterized in that weight (3) is 150-170mm, weight internal diameter 70-80mm, weight wall thickness 20-25mm.
7. according to the said Weight type tiltmeter of claim 1, it is characterized in that the lower end inner chamber of tiltmeter base (2) is provided with internal sealing plug (12), protection casing (1) upper end outer wall is provided with external sealing plug (13), and internal sealing plug (12) is complementary with external sealing plug (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110078883A CN102226698B (en) | 2011-03-30 | 2011-03-30 | Weight-type inclinometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110078883A CN102226698B (en) | 2011-03-30 | 2011-03-30 | Weight-type inclinometer |
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| CN102226698A CN102226698A (en) | 2011-10-26 |
| CN102226698B true CN102226698B (en) | 2012-10-17 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102704909B (en) * | 2012-06-28 | 2015-03-11 | 中国水利水电第七工程局成都水电建设工程有限公司 | Hole-deflection control construction method for deep hole drilling |
| CN103195107B (en) * | 2013-03-08 | 2013-10-09 | 中国地质大学（武汉） | Portable folding-type inclination survey device for precast pile with round or ring-shaped cross section |
| CN103376094B (en) * | 2013-07-03 | 2016-08-24 | 中国矿业大学(北京) | Husky survey meter and detection method are adopted in lake, river |
| CN105604103A (en) * | 2016-02-24 | 2016-05-25 | 中国地质大学（武汉） | Installing device of strain gauge inside miniature steel pipe pile and strain gauge installing method thereof |
| CN105604540B (en) * | 2016-03-24 | 2018-05-08 | 中国葛洲坝集团勘测设计有限公司 | A kind of floated weight inclinometer and measuring method |
| CN109357601A (en) * | 2018-10-29 | 2019-02-19 | 中建三局集团有限公司 | A kind of bore angle measuring device |
| CN113251930B (en) * | 2021-06-29 | 2021-10-19 | 长江空间信息技术工程有限公司(武汉) | High-precision intelligent measuring device and method for effective pipe or aperture and circle center in pipe or hole |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10195870A (en) * | 1997-01-07 | 1998-07-28 | Toa Harbor Works Co Ltd | Driving method for wedge type underground wall |
| CN200947037Y (en) * | 2006-03-08 | 2007-09-12 | 吴楠楠 | Simple level measuring instrument |
| CN101038161A (en) * | 2006-03-14 | 2007-09-19 | 上海瑞可运动器材有限公司 | Method for measuring incline angle |
| CN100572676C (en) * | 2008-01-29 | 2009-12-23 | 中国水利水电第三工程局 | Large area sawed joint cutting construction method of concrete gravity dam cross joint |
| CN201259422Y (en) * | 2008-09-05 | 2009-06-17 | 中国葛洲坝集团股份有限公司 | Free expansion type center disposer |
| CN101377412B (en) * | 2008-10-06 | 2011-08-10 | 山东科技大学 | Cage conductor shape laser detector based on double-steel wire rope orientation and detecting method thereof |
| CN101514626A (en) * | 2009-03-25 | 2009-08-26 | 钱自卫 | Dotting type clinometer |
| CN201463890U (en) * | 2009-09-04 | 2010-05-12 | 黄长金 | verticality detector |
| CN101761330B (en) * | 2010-04-01 | 2013-11-06 | 山东科技大学 | Ultrasonic logging system using self-orienting device of ultrasonic logging instrument |
| CN202008362U (en) * | 2011-03-30 | 2011-10-12 | 中国水利水电第七工程局成都水电建设工程有限公司 | Counter weight type inclinometer |
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