CN105780829A - Device for rapidly and accurately detecting sediment thickness of cast-in-situ bored pile - Google Patents
Device for rapidly and accurately detecting sediment thickness of cast-in-situ bored pile Download PDFInfo
- Publication number
- CN105780829A CN105780829A CN201610287840.XA CN201610287840A CN105780829A CN 105780829 A CN105780829 A CN 105780829A CN 201610287840 A CN201610287840 A CN 201610287840A CN 105780829 A CN105780829 A CN 105780829A
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- China
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- cylinder body
- columnar cylinder
- piston
- guide sleeve
- cast
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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
- E02D33/00—Testing foundations or foundation structures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
Abstract
The invention particularly discloses a device for rapidly and accurately detecting a sediment thickness of a cast-in-situ bored pile. The problems that according to an existing detecting device, measuring time is long, measuring precision is low, and the cost is high are solved. The device comprises square timber and a columnar cylinder body; a guide hole is formed in the square timber, a lifting ring is arranged on the top of the columnar cylinder body, and a measuring rope is connected into the lifting ring; a balance weight iron cake is arranged at the bottom of the columnar cylinder body, a piston is arranged in the columnar cylinder body, a probe rod is arranged in the center of the piston, the upper end of the probe rod and the piston are fixed, the lower end of the probe rod penetrates out of the bottom end of the columnar cylinder body, and a U-shaped sealing guide sleeve is arranged at the bottom end of the columnar cylinder body; the upper end of the U-shaped sealing guide sleeve is provided with a clamping ring which extends inwards, an oil body with the liquid level located above the U-shaped sealing guide sleeve is arranged in the U-shaped sealing guide sleeve, and a cavity defined by the columnar cylinder body on the upper side and the lower side of the piston is an inert gas high-pressure cavity; and the device is reasonable and reliable in structural design, detection accurate precision of the bottom sediment thickness of the cast-in-situ bored pile is improved, the measuring process is convenient and rapid, and the detection efficiency can be effectively improved.
Description
Technical field
The present invention relates to foundation engineering detecting device, be specially a kind of cast-in-situ bored pile sediment thickness quick and precisely detecting device.
Background technology
Cast-in-situ bored pile is one of foundation pile form common in architectural engineering, and its effect is to be delivered in deep stability soil layer by the load of top-out structure or on lithosphere.Generally in underground or under water, operational procedure is complicated, technology requires high, difficulty of construction hole big, clear difficulty, easily occurs sediment phenomenon at the bottom of hole for bored concrete pile foundation.The thickness of sediment at the bottom of hole directly affects the bearing capacity of stake holes, and therefore sediment thickness must be measured by stake holes before concrete perfusion, it is determined that whether the sediment thickness at the bottom of stake holes reaches code requirement.
" technical code for building pile foundation " (People's Republic of China (PRC) industry standard JGJ94-2008) 6.3.9 bar specifies: after the construction of boring completes, the thickness tackling foot of hole sediment before concrete perfusion detects, its result should meet claimed below: 1, type stake is held in opposite end, not should be greater than 50mm；2, to friction type stake, not should be greater than 100mm；3, to resistance to plucking, horizontal force resistant stake, not should be greater than 200mm；Otherwise should carry out the process of clear hole.
The detection method of current sediment thickness has lining rope (weight) detection, sampling box detection and the detection of sediment instrument.
Lining rope should adopt standard lining rope, uses in front and use procedure and should often check, when occurring should changing in time when abrasion, numeral are unclear or mark numerical digit is moved；Plummet adopts weight (being typically no less than 1kg), and volume should not be too big.Sediment layer thickness at the bottom of this method detection hole is relatively directly perceived, convenient, is a kind of measuring method conventional at present, but anthropic factor impact is bigger in concrete operations.Because lacking experience in construction, hole bottom slurry proportion is relatively big, hole depth is bigger etc., and that factor easily causes measurement is inaccurate.
During sampling box detection, after clear hole is terminated, sampling box (opening can) is hung at the bottom of hole, take out before treating filling concrete, measure the dregs thickness being deposited in box.This method error is relatively big, measures the time longer, it is impossible to meet rapid construction requirement.
Sediment instrument detects, and this equipment is more advanced, should demarcate in advance before using, application in large-scale at some, key project.This kind of method puts into acquisition cost height, and the time of measuring is long, big by stake holes environmental effect.
Summary of the invention
The present invention is to solve the problem that existing detecting device exists measurement time length, certainty of measurement is relatively low and cost is high, it is provided that a kind of cast-in-situ bored pile sediment thickness quick and precisely detecting device.
The present invention adopts the following technical scheme that realization: cast-in-situ bored pile sediment thickness quick and precisely detecting device, including being arranged on the lumps of wood at stake holes top and being positioned at the columnar cylinder body of stake holes, the lumps of wood has the pilot hole being positioned at stake holes center, columnar cylinder body top is provided with suspension ring, is connected to the lining rope passing pilot hole in suspension ring；The counterweight discus that lower surface flushes it is provided with its lower surface bottom columnar cylinder body；The piston being located therein top it is provided with in columnar cylinder body, piston centre is provided with that upper end is secured to, lower end passes the feeler lever of columnar cylinder body bottom, columnar cylinder body bottom is provided with U-shaped seal guide sleeve, U-shaped seal guide sleeve upper end is provided with the snap ring extended internally, and it being provided with, in U-shaped seal guide sleeve, the oil body that liquid level is positioned above, the cavity that the columnar cylinder body of the upper and lower both sides of piston surrounds is noble gas high pressure chest.
When carrying out detection operation, first regulate feeler lever to stretch out the length of columnar cylinder body bottom and meet the depth capacity of sediment, the interim fixing lumps of wood directly over stake holes subsequently, columnar cylinder body is vertically slowly transferred along the pilot hole of the lumps of wood by lining rope, when feeler lever contacts solid rock, under feeler lever and counterweight discus self gravitation effect, feeler lever is inwardly retracted, until sediment face at the bottom of counterweight discus access hole no longer sinks, now feeler lever is no longer retracted, columnar cylinder body is slowly proposed from stake holes, measure feeler lever protruded length with steel ruler and be sediment thickness at the bottom of hole, overcoming existing detecting device, to there is the measurement time long, the problem that certainty of measurement is relatively low and cost is high.
Present configuration is reasonable in design reliably, improves the accurate precision of the detection of sediment thickness bottom drilled pile, and the advantage that it is convenient and swift to measure process, is effectively improved detection efficiency, has simple in construction, easy to process and cost is low.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure: the 1-lumps of wood, 2-columnar cylinder body, 3-pilot hole, 4-suspension ring, 5-lining rope, 6-counterweight discus, 7-piston, 8-feeler lever, 9-U type seal guide sleeve, 10-snap ring, 11-oil body, 12-gas high pressure chamber.
Detailed description of the invention
Cast-in-situ bored pile sediment thickness quick and precisely detecting device, including being arranged on the lumps of wood 1 at stake holes top and being positioned at the columnar cylinder body 2 of stake holes, having the pilot hole 3 being positioned at stake holes center on the lumps of wood 1, columnar cylinder body 2 top is provided with suspension ring 4, is connected to the lining rope 5 passing pilot hole 3 in suspension ring 4；The counterweight discus 6 that lower surface flushes it is provided with its lower surface bottom columnar cylinder body 2；The piston 7 being located therein top it is provided with in columnar cylinder body 2, piston 7 is provided centrally with that upper end is secured to, lower end passes the feeler lever 8 of columnar cylinder body 2 bottom, columnar cylinder body 2 bottom is provided with U-shaped seal guide sleeve 9, U-shaped seal guide sleeve 9 upper end is provided with the snap ring 10 extended internally, and it being provided with, in U-shaped seal guide sleeve 9, the oil body 11 that liquid level is positioned above, the cavity that the columnar cylinder body 2 of piston about 7 both sides surrounds is noble gas high pressure chest 12.
In specific implementation process, the relational implementation that feeler lever 8 bounces back between required power and the buoyancy of detecting device is utilized to detect the purpose of sediment thickness；It is 2cm that adjustment feeler lever 8 stretches out the length of columnar cylinder body 2 bottom.
Claims (1)
1. a cast-in-situ bored pile sediment thickness quick and precisely detecting device, it is characterized in that: include being arranged on the lumps of wood (1) at stake holes top and be positioned at the columnar cylinder body (2) of stake holes, the lumps of wood (1) has the pilot hole (3) being positioned at stake holes center, columnar cylinder body (2) top is provided with suspension ring (4), is connected to the lining rope (5) passing pilot hole (3) in suspension ring (4)；Columnar cylinder body (2) bottom is provided with the counterweight discus (6) that lower surface flushes with its lower surface；The piston (7) being located therein top it is provided with in columnar cylinder body (2), the feeler lever (8) of piston (7) is provided centrally with that upper end is secured to, lower end passes columnar cylinder body (2) bottom, columnar cylinder body (2) bottom is provided with U-shaped seal guide sleeve (9), U-shaped seal guide sleeve (9) upper end is provided with the snap ring (10) extended internally, and it being provided with, in U-shaped seal guide sleeve (9), the oil body (11) that liquid level is positioned above, the cavity that the columnar cylinder body (2) of piston (7) both sides up and down surrounds is noble gas high pressure chest (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287840.XA CN105780829B (en) | 2016-05-04 | 2016-05-04 | Cast-in-situ bored pile sediment thickness quick and precisely detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287840.XA CN105780829B (en) | 2016-05-04 | 2016-05-04 | Cast-in-situ bored pile sediment thickness quick and precisely detection means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105780829A true CN105780829A (en) | 2016-07-20 |
| CN105780829B CN105780829B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610287840.XA Active CN105780829B (en) | 2016-05-04 | 2016-05-04 | Cast-in-situ bored pile sediment thickness quick and precisely detection means |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528599A (en) * | 2019-07-23 | 2019-12-03 | 中建三局集团有限公司 | A kind of construction cast-in-place concrete pile sediment measuring device and its application method |
| CN113465474A (en) * | 2021-06-08 | 2021-10-01 | 上海浦江勘查工程有限公司 | Detection apparatus for foundation engineering construction sediment thickness |
| CN114705106A (en) * | 2022-03-30 | 2022-07-05 | 中国十九冶集团有限公司 | Method for detecting sediment of cast-in-situ bored pile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0849405A1 (en) * | 1988-12-29 | 1998-06-24 | Takechi Engineering Co., Ltd. | Methods of determining capability and quality of foundation piles and of designing foundation piles, apparatus for measuring ground characteristics, method of making hole for foundation pile such as cast-in-situ pile and apparatus therefor |
| CN101482385A (en) * | 2009-02-20 | 2009-07-15 | 中建七局第三建筑有限公司 | Sediment detector for filling pile |
| CN203307847U (en) * | 2013-05-30 | 2013-11-27 | 上海绿地建设(集团)有限公司 | Detection device for sediment thickness in ground foundation engineering construction |
| CN203639959U (en) * | 2013-12-20 | 2014-06-11 | 瑞和安惠项目管理集团有限公司 | Pile-hole sediment thickness detector for engineering supervision |
| CN204212189U (en) * | 2014-11-14 | 2015-03-18 | 广西建工集团第二建筑工程有限责任公司 | For pound piling with hole slurry protected sediment layer thickness determinator |
| CN205591265U (en) * | 2016-05-04 | 2016-09-21 | 中铁十七局集团第一工程有限公司 | Quick accurate detection device of drilling bored concrete pile sediment thickness |
-
2016
- 2016-05-04 CN CN201610287840.XA patent/CN105780829B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0849405A1 (en) * | 1988-12-29 | 1998-06-24 | Takechi Engineering Co., Ltd. | Methods of determining capability and quality of foundation piles and of designing foundation piles, apparatus for measuring ground characteristics, method of making hole for foundation pile such as cast-in-situ pile and apparatus therefor |
| CN101482385A (en) * | 2009-02-20 | 2009-07-15 | 中建七局第三建筑有限公司 | Sediment detector for filling pile |
| CN203307847U (en) * | 2013-05-30 | 2013-11-27 | 上海绿地建设(集团)有限公司 | Detection device for sediment thickness in ground foundation engineering construction |
| CN203639959U (en) * | 2013-12-20 | 2014-06-11 | 瑞和安惠项目管理集团有限公司 | Pile-hole sediment thickness detector for engineering supervision |
| CN204212189U (en) * | 2014-11-14 | 2015-03-18 | 广西建工集团第二建筑工程有限责任公司 | For pound piling with hole slurry protected sediment layer thickness determinator |
| CN205591265U (en) * | 2016-05-04 | 2016-09-21 | 中铁十七局集团第一工程有限公司 | Quick accurate detection device of drilling bored concrete pile sediment thickness |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528599A (en) * | 2019-07-23 | 2019-12-03 | 中建三局集团有限公司 | A kind of construction cast-in-place concrete pile sediment measuring device and its application method |
| CN113465474A (en) * | 2021-06-08 | 2021-10-01 | 上海浦江勘查工程有限公司 | Detection apparatus for foundation engineering construction sediment thickness |
| CN113465474B (en) * | 2021-06-08 | 2023-03-14 | 上海浦江勘查工程有限公司 | Detection apparatus for foundation engineering construction sediment thickness |
| CN114705106A (en) * | 2022-03-30 | 2022-07-05 | 中国十九冶集团有限公司 | Method for detecting sediment of cast-in-situ bored pile |
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| Publication number | Publication date |
|---|---|
| CN105780829B (en) | 2017-12-08 |
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