CN104452727B - A kind of memory-type piezoelectricity electrical measurement dynamic sounding device - Google Patents
A kind of memory-type piezoelectricity electrical measurement dynamic sounding device Download PDFInfo
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- CN104452727B CN104452727B CN201410728655.0A CN201410728655A CN104452727B CN 104452727 B CN104452727 B CN 104452727B CN 201410728655 A CN201410728655 A CN 201410728655A CN 104452727 B CN104452727 B CN 104452727B
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- piezoelectric transducer
- charge amplifier
- conehead
- probing shell
- wire
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
Abstract
The invention discloses a kind of memory-type piezoelectricity electrical measurement dynamic sounding device, it relates to geotechnical engineering investigation detection field, probing shell one end is connected with latching connector, the probing shell other end is connected with conehead by load set, it is provided with fore-set, power transmission medium and piezoelectric transducer in load set, one end of piezoelectric transducer is connected with wire, and wire one end is connected through adapter sleeve with measuring supporting set of cells, is provided with blanking cover in adapter sleeve.Force-transmitting part, signals collecting and amplifier section are integrated in one by it, charge signal can be converted into dynamic resistance, when field process, only need to record each dynamic sounding initiate and terminate the degree of depth, dynamic resistance can automatic storage in probe in memorizer, after field operation terminates, pass through data output, data are introduced directly into computer, each soil layer relevant bearer power can be directly obtained, save the input of loaded down with trivial details data and the time of specification lookup, improve work efficiency, avoid, because various factors causes data inaccurate, Geotechnical Engineering data being made qualitative, quantitative evaluation.
Description
Technical field
The present invention relates to a kind of memory-type piezoelectricity electrical measurement dynamic sounding device, belong to geotechnical engineering investigation detection technique field.
Background technology
Dynamic sounding has the incomparable superiority of other means as a kind of in-situ testing method of geotechnical engineering investigation, especially for sand, gravelly soil stratum, explore through numerous engineers and technicians' years of researches, can determine that its degree of compaction by dynamic penetration test achievement, determine the parameters such as bearing capacity, end resistance and internal friction angle, dynamic sounding has become the necessary means of engineering investigation in some place.But currently used dynamic penetration test there is also problems and defect.First, dynamic sounding is the most unalterable in test method, the most progressive, remains within the most extensive artificial gage reading level, and anthropic factor causes result of the test deviation inevitable；Secondly, it is considered to energy loss and the bar length correction that carries out the most does not obtains satisfactory answer, the effectiveness of result of the test, particularly when testing the degree of depth beyond Specification limits, how to revise unified rational common recognition.
It is known that, static sounding can survey end resistance and the collateral resistance of read tap continuously, stratum soft or hard degree can be held the most accurately, and utilize this end resistance and collateral resistance to determine correlation engineering parameter and index, but the static sounding scope of application is the narrowest and small, it is only applicable in cohesive soil and loose Extra-fine sand, and MTD is the most shallower, application is very restricted, and memory-type piezoelectricity electrical measurement dynamic sounding compensate for the shortcoming of quiet spy and had bigger breakthrough, it is not only applicable in cohesive soil, and closely knit sandy soil is more highlighted superiority.
Memory-type piezoelectricity electrical measurement dynamic sounding integrates the wider array of suitability of dynamic sounding and the accuracy of static sounding data, and have and automatically store function, more can provide Geotechnical Parameter accurately by quantitative and qualitative, in the near future, memory-type piezoelectricity electrical measurement dynamic sounding, by the once innovation to Geotechnical Engineering art, becomes ground zero, new wind vane.
Summary of the invention
For the problems referred to above, the technical problem to be solved in the present invention is to provide a kind of memory-type piezoelectricity electrical measurement dynamic sounding device.
A kind of memory-type piezoelectricity electrical measurement dynamic sounding device of the present invention, it comprises probing shell, latching connector, load set, conehead, fore-set, power transmission medium, piezoelectric transducer, wire, adapter sleeve, blanking cover, measure supporting set of cells, charge amplifier, low pass filter, peak-holding circuit and A/D transit storage, one end of probing shell connects latching connector, the other end of probing shell is connected with conehead by load set, it is provided with fore-set in load set, power transmission medium and piezoelectric transducer, one end of piezoelectric transducer is connected with wire, one end of wire is connected through adapter sleeve with measuring supporting set of cells, blanking cover it is provided with in adapter sleeve.
As preferably, described probing shell is internally provided with charge amplifier, low pass filter, peak-holding circuit and A/D transit storage, charge amplifier, low pass filter, peak-holding circuit and A/D transit storage are sequentially connected with, and charge amplifier is connected with piezoelectric transducer.
Beneficial effects of the present invention: it is by force-transmitting part, signals collecting and amplifier section are integrated in one, charge signal can be converted into dynamic resistance, when field process, only need to record the initial of each dynamic sounding and terminate the degree of depth, in dynamic resistance meeting automatic storage memorizer in probe, after field operation terminates, pass through data output, data are introduced directly in computer, technical staff can directly obtain the relevant bearer power of each soil layer, it is greatly saved the input of loaded down with trivial details data and the time of specification lookup, not only improve work efficiency, also avoid because various factors causes data inaccurate, Geotechnical Engineering data are made the evaluation of qualitative, quantitative.
Accompanying drawing illustrates:
For ease of explanation, the present invention is embodied as and accompanying drawing is described in detail by following.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the internal circuit configuration schematic diagram of the present invention.
1-probing shell；2-latching connector；3-load set；4-conehead；5-fore-set；6-power transmission medium；7-piezoelectric transducer；8-wire；9-adapter sleeve；10-blanking cover；11-measures supporting set of cells；12-charge amplifier；13-low pass filter；14-peak-holding circuit；15-A/D transit storage.
Detailed description of the invention:
nullAs shown in Figure 1-2，This detailed description of the invention is by the following technical solutions: it comprises probing shell (1)、Latching connector (2)、Load set (3)、Conehead (4)、Fore-set (5)、Power transmission medium (6)、Piezoelectric transducer (7)、Wire (8)、Adapter sleeve (9)、Blanking cover (10)、Measure supporting set of cells (11)，Charge amplifier (12)、Low pass filter (13)、Peak-holding circuit (14) and A/D transit storage (15)，One end of probing shell (1) connects latching connector (2)，The other end of probing shell (1) is connected with conehead (4) by load set (3)，Fore-set (5) it is provided with in load set (3)、Power transmission medium (6) and piezoelectric transducer (7)，One end of piezoelectric transducer (7) is connected with wire (8)，One end of wire (8) is connected through adapter sleeve (9) with measuring supporting set of cells (11)，Blanking cover (10) it is provided with in adapter sleeve (9)
As preferably, described probing shell (1) is internally provided with charge amplifier (12), low pass filter (13), peak-holding circuit (14) and A/D transit storage (15), charge amplifier (12), low pass filter (13), peak-holding circuit (14) and A/D transit storage (15) are sequentially connected with, and charge amplifier (12) is connected with piezoelectric transducer (7).
The operation principle of this detailed description of the invention: transfer force to conehead (4) by weight, conehead (4) is under gravity, in the soil layer that injection is different, principle according to active force Yu counteracting force, counteracting force passes to power on piezoelectric transducer (7) by fore-set (5) and power transmission medium (6) etc., the charge signal that sensor exports is converted into voltage signal by charge amplifier (12) by piezoelectric transducer (7), unwanted high-frequency interferencing signal is filtered after low pass filter (13) by the signal that charge amplifier (12) exports, then store after signal value being amplified by peak-holding circuit (14), the collection of data is carried out finally by A/D transit storage (15), storage and output.
This detailed description of the invention reasonable in design, simple to operate, easy to use, have and automatically store function, parameter is the most accurately provided, can intuitively evaluate rock-soil engineering parameters.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle that the present invention is simply described described in above-described embodiment and description; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (1)
- null1. a memory-type piezoelectricity electrical measurement dynamic sounding device，It is characterized in that: it comprises probing shell (1)、Latching connector (2)、Load set (3)、Conehead (4)、Fore-set (5)、Power transmission medium (6)、Piezoelectric transducer (7)、Wire (8)、Adapter sleeve (9)、Blanking cover (10)、Measure supporting set of cells (11)，Charge amplifier (12)、Low pass filter (13)、Peak-holding circuit (14) and A/D transit storage (15)，One end of probing shell (1) connects latching connector (2)，The other end of probing shell (1) is connected with conehead (4) by load set (3)，Fore-set (5) it is provided with in load set (3)、Power transmission medium (6) and piezoelectric transducer (7)，One end of piezoelectric transducer (7) is connected with wire (8)，One end of wire (8) is connected through adapter sleeve (9) with measuring supporting set of cells (11)，Blanking cover (10) it is provided with in adapter sleeve (9)，Described probing shell (1) is internally provided with charge amplifier (12)、Low pass filter (13)、Peak-holding circuit (14) and A/D transit storage (15)，Charge amplifier (12)、Low pass filter (13)、Peak-holding circuit (14) and A/D transit storage (15) are sequentially connected with，And charge amplifier (12) is connected with piezoelectric transducer (7)；Its operation principle: transfer force to conehead (4) by weight, conehead (4) is under gravity, in the soil layer that injection is different, principle according to active force Yu counteracting force, counteracting force passes to power on piezoelectric transducer (7) by fore-set (5) and power transmission medium (6), the charge signal that sensor exports is converted into voltage signal by charge amplifier (12) by piezoelectric transducer (7), unwanted high-frequency interferencing signal is filtered after low pass filter (13) by the signal that charge amplifier (12) exports, then store after signal value being amplified by peak-holding circuit (14), the collection of data is carried out finally by A/D transit storage (15), storage and output.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728655.0A CN104452727B (en) | 2014-12-05 | 2014-12-05 | A kind of memory-type piezoelectricity electrical measurement dynamic sounding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728655.0A CN104452727B (en) | 2014-12-05 | 2014-12-05 | A kind of memory-type piezoelectricity electrical measurement dynamic sounding device |
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| CN104452727A CN104452727A (en) | 2015-03-25 |
| CN104452727B true CN104452727B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468539A (en) * | 2018-03-29 | 2018-08-31 | 东南大学 | A kind of drill pressure real-time measurement apparatus when cement-soil stirring pile construction |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839608B (en) * | 2016-03-28 | 2017-10-27 | 铁道第三勘察设计院集团有限公司 | Hammering device in a kind of hammering method of dynamic penetration test and its hole |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6062090A (en) * | 1996-07-31 | 2000-05-16 | Transportation Technology Center, Inc. | Apparatus and method for determining the strength and type of soil |
| JP2004332462A (en) * | 2003-05-09 | 2004-11-25 | Nitto Seiko Co Ltd | Automatic penetration testing machine having hammering measurement function |
| CN102094410A (en) * | 2009-12-15 | 2011-06-15 | 杨砚儒 | Static/dynamic sounding apparatus |
| CN201605569U (en) * | 2010-02-01 | 2010-10-13 | 陈怀峰 | Dual-bridge static sounding large-range probe head |
| CN204282334U (en) * | 2014-12-05 | 2015-04-22 | 辽宁省建筑设计研究院岩土工程公司 | A kind of memory-type piezoelectricity electrical measurement dynamic sounding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468539A (en) * | 2018-03-29 | 2018-08-31 | 东南大学 | A kind of drill pressure real-time measurement apparatus when cement-soil stirring pile construction |
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Address after: No. 84, Heping South Street, Shenyang, Liaoning 110000 Patentee after: Liaoning architectural design and Research Institute Geotechnical Engineering Co.,Ltd. Address before: No. 84, Heping South Street, Shenyang, Liaoning 110000 Patentee before: LIAONING PROVINCIAL BUILDING DESIGN & RESEARCH INSTITUTE OF GEOTECHNICAL ENGINEERING Co. |
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