CN1010801B - Measuring method and apparatus for the sediment in a stake hole by electrolyzing rate - Google Patents
Measuring method and apparatus for the sediment in a stake hole by electrolyzing rateInfo
- Publication number
- CN1010801B CN1010801B CN85108258A CN88108554A CN1010801B CN 1010801 B CN1010801 B CN 1010801B CN 85108258 A CN85108258 A CN 85108258A CN 88108554 A CN88108554 A CN 88108554A CN 1010801 B CN1010801 B CN 1010801B
- Authority
- CN
- China
- Prior art keywords
- sediment
- hole
- analyzer
- deposit
- measurer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention relates to a measuring apparatus, and is used for measuring the thickness of deposit in a post hole by an electrolysis rate method. The present invention is composed of a measurer and a secondary meter, wherein the measurer comprises a measuring probe and a vibration generator. The secondary meter comprises a display for displaying the position of a deposit surface, and a driving power supply of the vibration generator. When the measuring probe contacts the deposit surface, the values of electrolysis rates are obviously and greatly changed so as to know whether the measuring probe contacts the deposit surface or not. The measurer vibrates as sinks, and reaches the bottom of the hole. The depth values of the measurer when the measurer reaches the deposit surface and enters the bottom of the deposit are recorded by length marks on conducting wires in order to calculate the thickness of the deposit. The present invention can accurately, rapidly and conveniently measure the thickness of deposit in various post holes.
Description
The invention belongs to electricity, magnetism method is the measuring method that is used for metering depth, thickness of feature, is specially adapted to the measurement of sediment thickness at the bottom of the priming concrete pile hole.
When foundation pile of building adopted mechanical hole building, frequent remaining sediment at the bottom of the hole thickly sometimes reached one meter.These sediments are essential to be removed, and can meet design requirement with the load-bearing capacity that guarantees pile foundation.The method of sediment is to adopt measuring staff or plummet directly to measure at the bottom of the inspection hole at present, because the stake hole depth is bigger, is difficult to survey accurate.In recent years, domestic have a kind of determination of resistivity instrument to occur, as the CZ-II type sediment analyzer of Metallurgical Research Institute, Department of Architecture development in 1986.
This determination of resistivity instrument is to utilize stake inner hole deposition slag mud to have different resistivity with underground water, when the probe of analyzer has very big change by the water surface, resistance value when touching sediment mud surface, thereby go deep into the absolute altitude that the degree of depth in the hole is determined the sediment surface according to probe; Utilize the deadweight of probe to sink in the sediment,, think to arrive at the bottom of the hole, learning that thus probe sinks to the absolute altitude of sediment bottom, calculate the elevation difference of bottom, promptly try to achieve sediment thickness from the sediment surface to sediment when sinking to action when stopping.The employing of this method, it is the deadweight that relies on probe at the bottom of sinking to the hole, therefore the accuracy of measuring still has some shortcomings.
The objective of the invention is to propose a kind of electrical measurement new method, promptly utilize the electrolyzing rate method to carry out sediment thickness and measure, propose a kind of determinator simultaneously, to record sediment thickness exactly.
The present invention is according to electrical principles, and when the relative position between geometric configuration, size and the pole plate of a pair of pole plate fixedly the time, its electric capacity will be proportional to the specific inductive capacity of medium, i.e. the electrolyzing rate of medium.Because different media has different electrolyzing rates, therefore, can judge the difference of medium according to the difference of electric capacity.Test findings shows that the electrolyzing rate of air, water, sediment has evident difference.The present invention utilizes this principle to measure position, sediment surface, and makes the sediment determinator.
Electrolyzing rate stake of the present invention hole sediment determinator is connect by analyzer and secondary instrument and is formed with lead.Analyzer is formed by measuring probe, vibrator and coniform shell.Measure probe and be the pair of metal pole plate, be installed in an end of shell, and receive on the secondary instrument, be carved with the length dimension mark on the lead with connecting wire.Vibrator is installed the other end in the enclosure, also is wired on the secondary instrument.Secondary instrument is made up of sediment surface location automatic display and vibrator driving power.Sediment surface location automatic display is made up of oscillator, frequency to voltage converter, voltage comparator, voltage divider and pilot lamp.From the electric capacitance change signal of measuring the probe output terminal (changing generation) by electrolyzing rate, change into frequency change through oscillator, convert voltage signal to through frequency to voltage converter then and change, and export to an input end of voltage comparator.The other end of voltage comparator is received the output terminal of voltage divider, and voltage divider is made up of potentiometer, resistance and voltage source, produces adjustable voltage given value.When the voltage signal of frequency to voltage converter output was lower than the set-point of potentiometer, the output terminal of voltage comparator was a noble potential, and pilot lamp is bright.Otherwise the voltage comparator output terminal is an electronegative potential, and pilot lamp goes out.Because the capacitance on sediment surface is lower than the capacitance of water and air, when the magnitude of voltage of setting by potentiometer is between sediment surface and the corresponding magnitude of voltage of water and air, when test probe touched the sediment surface, pilot lamp was bright, thereby realized the automatic demonstration of sediment surface location.Because the sediment of different soil properties can produce different voltage signals, therefore, can set different voltage given values by potentiometer, to adapt to different soil property situations.
Electrolyzing rate stake of the present invention hole sediment assay method is with electrolyzing rate method mensuration sediment surface location, with the vibration-sunk probe, to measure the sediment bottom position again, thereby determine sediment thickness earlier.Concrete grammar is: fixation mark point is selected on ground near the stake hole, settle secondary instrument, the mensuration probe wire of analyzer is connected on the test input of secondary instrument, analyzer is slowly put into a hole, when the mensuration probe touches the sediment surface,, on the sediment surface location automatic display significant reaction is arranged because of the electrolyzing rate value mutation of sediment, pilot lamp is bright, and the degree of depth that this moment, lead stretched into a hole is made a mark.Open the vibrator driving power, vibrator drives the analyzer vibration-sunk, screws in sediment, when the action of sinking stops, promptly arriving the sediment bottom, and this moment, lead began to continue to stretch into the degree of depth in a hole from last mark, was sediment thickness.
The present invention and existing determination of resistivity instrument relatively, when running into sediment when hard, thick, analyzer can overcome resistance, therefore vibration-sunk can accurately measure sediment thickness at the bottom of the hole.
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is electrolyzing rate stake hole sediment assay method and installation drawing thereof.
Fig. 2 is a sediment surface location automatic display schematic diagram.
As seen from the figure, make cylindrical, the long 300mm of a shell, the analyzer 1 of diameter 100mm with nylon material, two pole plates, pole plate area 40 * 10mm, polar plate spacing 13mm install in tapered place at the one end, constitute and measure probe 2, a 20W vibrator 3 is installed in the other end the inside of analyzer.The lead 4 that mensuration probe 2 usefulness is carved with length mark is connected on the sediment surface location automatic display 6 of secondary instrument 5, and sediment surface location automatic display is made up of oscillator 8, frequency to voltage converter 9, voltage comparator 10, voltage divider 11 and pilot lamp 12.Wherein voltage divider 11 is made up of potentiometer 13, resistance 14 and voltage source 15.Vibrator 3 is wired on the vibrator driving power 7.So constitute whole stake hole sediment determinator.
When measuring a certain inner hole deposition slag thickness, analyzer is put into a hole, hand-held lead is put into analyzer slowly.When entering into the sediment surface in mensuration is popped one's head in by the water that contains mud, on the sediment surface location automatic display unexpected variation is arranged, pilot lamp is bright, writes down length mark on the lead this moment.Start the vibrator driving power, the analyzer vibration-sunk when analyzer sinks to stopping, being write down the length mark on the lead again, and the length difference of mark is sediment thickness on twice lead.
Claims (2)
1, sediment assay method at the bottom of a kind of hole, when the probe contact sediment of analyzer is surperficial, write down the length at the bottom of lead stretches into the hole, analyzer is sunk, when sinking stops, writing down the length that lead stretches into again, the difference of two length is the sediment thickness of surveying, it is characterized in that utilizing the notable difference of water and sediment two media electrolyzing rate, differentiate and definite sediment surface location, it is to produce vibration-sunk power by the vibrator in it to realize that analyzer sinks to the sediment bottom.
2, sediment determinator at the bottom of a kind of hole, form by analyzer and secondary instrument, it is characterized in that, the analyzer front end is that electrolyzing rate is measured probe, the rear end is a vibrator, sediment surface location automatic display and vibrator driving power are arranged in the secondary instrument, and electrolyzing rate is measured probe and is linked to each other with sediment surface location automatic display by the lead that length mark is arranged, and vibrator links to each other with the vibrator driving power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85108258A CN1010801B (en) | 1988-12-10 | 1988-12-10 | Measuring method and apparatus for the sediment in a stake hole by electrolyzing rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85108258A CN1010801B (en) | 1988-12-10 | 1988-12-10 | Measuring method and apparatus for the sediment in a stake hole by electrolyzing rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1033415A CN1033415A (en) | 1989-06-14 |
| CN1010801B true CN1010801B (en) | 1990-12-12 |
Family
ID=4835109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85108258A Expired CN1010801B (en) | 1988-12-10 | 1988-12-10 | Measuring method and apparatus for the sediment in a stake hole by electrolyzing rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1010801B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105076161B (en) * | 2014-05-08 | 2018-05-25 | 江苏龙灯化学有限公司 | A kind of bactericidal composition |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130645B (en) * | 2017-06-06 | 2022-09-02 | 长江三峡勘测研究院有限公司（武汉） | Multifunctional vibrating type pile well sediment detector |
-
1988
- 1988-12-10 CN CN85108258A patent/CN1010801B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105076161B (en) * | 2014-05-08 | 2018-05-25 | 江苏龙灯化学有限公司 | A kind of bactericidal composition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033415A (en) | 1989-06-14 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |