CN104452727A - Storage type piezoelectric electric detection dynamic sounding device - Google Patents
Storage type piezoelectric electric detection dynamic sounding device Download PDFInfo
- Publication number
- CN104452727A CN104452727A CN201410728655.0A CN201410728655A CN104452727A CN 104452727 A CN104452727 A CN 104452727A CN 201410728655 A CN201410728655 A CN 201410728655A CN 104452727 A CN104452727 A CN 104452727A
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- China
- Prior art keywords
- sounding device
- piezoelectric transducer
- charge amplifier
- dynamic sounding
- power transmission
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Soil Sciences (AREA)
- Analytical Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a storage type piezoelectric electric detection dynamic sounding device and relates to the field of geotechnical engineering reconnaissance and detection. The storage type piezoelectric electric measurement power sounding device is characterized in that one end of a probe shell is connected with a lock connector, the other end of the probe shell is connected with a cone head through a bearing sleeve, a top column, a power transmission medium and a piezoelectric sensor are arranged in the bearing sleeve, one end of the piezoelectric sensor is connected with a conducting wire, one end of the conducting wire penetrates through a connecting sleeve and is connected with a measuring-supporting battery pack, and a material discharging cap is arranged in the connecting sleeve. The storage type piezoelectric electric detection power sounding device has the benefits that a power transmission part, a signal acquisition part and an amplification part are integrated, a charge signal can be directly converted into dynamic resistance, the dynamic sounding starting and terminating depth at each time only needs to be recorded during the field work, the dynamic resistance can be automatically stored in a memorizer in a probe, data is directly imported into a computer through a data output port after the end of the field work, and the related bearing capacity of each soil layer can be directly obtained, so that the time for cumbersome data input and normative finding is saved, the working efficiency is improved, inaccurate data caused by various factors is avoided, and qualitative and quantitative assessment on geotechnical engineering data is realized.
Description
Technical field
The present invention relates to a kind of memory-type piezoelectricity electrical measurement dynamic sounding device, belong to geotechnical investigation detection technique field.
Background technology
The superiority that dynamic sounding has other means incomparable as a kind of in-situ testing method of geotechnical investigation, particularly for sand, gravelly soil stratum, explore through numerous engineers and technicians' years of researches, with dynamic sounding achievement can judge its compactness, determine bearing capacity, the parameter such as end resistance and angle of internal friction, dynamic sounding has become the necessary means of engineering investigation in some place.But use dynamic sounding also to there is problems and defect at present.First, dynamic sounding is unalterable for many years in test method, and not progressive, still maintain simply extensive artificial gage reading level, human factor causes result of the test deviation inevitable; Secondly, consider energy loss and long correction of bar of carrying out does not obtain satisfactory answer, the validity of result of the test so far, particularly when testing the degree of depth and exceeding Specification limits, how to revise ununified rational common recognition.
As everyone knows, static sounding can survey end resistance and the collateral resistance of read tap continuously, formation soft or hard degree can be held very accurately, and utilize this end resistance and collateral resistance determination correlation engineering parameter and index, but the static sounding scope of application is relatively narrow and small, be only applicable in cohesive soil and loose Extra-fine sand, and MTD is general more shallow, application is very restricted, and memory-type piezoelectricity electrical measurement dynamic sounding compensate for the shortcoming of quiet spy and has had larger breakthrough, not only be applicable in cohesive soil, and more superiority is highlighted to closely knit sandy soil.
Memory-type piezoelectricity electrical measurement dynamic sounding integrates the accuracy of the wider applicability of dynamic sounding and static sounding data, and there is autostore 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 cover, conehead, fore-set, power transmission medium, piezoelectric transducer, wire, adapter sleeve, blanking cover, measure supporting battery pack, charge amplifier, low pass filter, peak-holding circuit and A/D transit storage, one end of probing shell is connected with latching connector, the other end of probing shell is connected with conehead by load cover, fore-set is provided with in load cover, power transmission medium and piezoelectric transducer, one end of piezoelectric transducer is connected with wire, one end of wire is connected with the supporting battery pack of measurement through adapter sleeve, blanking cover is provided with in adapter sleeve.
As preferably, described probing shell inside is provided with charge amplifier, low pass filter, peak-holding circuit and A/D transit storage, charge amplifier, low pass filter, peak-holding circuit are connected successively with A/D transit storage, and charge amplifier is connected with piezoelectric transducer.
Beneficial effect 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, the initial sum that only need record each dynamic sounding stops the degree of depth, in the memory of dynamic resistance meeting automatic storage in probe, after field operation terminates, pass through data output, data are directly imported in computer, technician directly can obtain the relevant bearer power of each soil layer, greatly save the time that loaded down with trivial details data input and specification is searched, not only increase work efficiency, also avoid because various factors causes data inaccurate, geotechnical engineering data are made to the evaluation of qualitative, quantitative.
accompanying drawing illustrates:
For ease of illustrating, the present invention is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is internal circuit configuration schematic diagram of the present invention.
1-probing shell; 2-latching connector; 3-load cover; 4-conehead; 5-fore-set; 6-power transmission medium; 7-piezoelectric transducer; 8-wire; 9-adapter sleeve; 10-blanking cover; 11-measures supporting battery pack; 12-charge amplifier; 13-low pass filter; 14-peak-holding circuit; 15-A/D transit storage.
detailed description of the invention:
As shown in Figure 1-2, this detailed description of the invention by the following technical solutions: it comprises probing shell (1), latching connector (2), load cover (3), conehead (4), fore-set (5), power transmission medium (6), piezoelectric transducer (7), wire (8), adapter sleeve (9), blanking cover (10), measure supporting battery pack (11), charge amplifier (12), low pass filter (13), peak-holding circuit (14) and A/D transit storage (15), one end of probing shell (1) is connected with latching connector (2), the other end of probing shell (1) is connected with conehead (4) by load cover (3), is provided with fore-set (5) in load cover (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 with the supporting battery pack of measurement (11) through adapter sleeve (9), is provided with blanking cover (10) in adapter sleeve (9)
As preferably, described probing shell (1) inside is 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) are connected successively with A/D transit storage (15), and charge amplifier (12) is connected with piezoelectric transducer (7).
The operating principle of this detailed description of the invention: power is delivered to conehead (4) by weight, conehead (4) under gravity, in the soil layer that injection is different, according to the principle of active force and reaction force, reaction force passes to power on piezoelectric transducer (7) by fore-set (5) and power transmission medium (6) etc., piezoelectric transducer (7) converts the charge signal that sensor exports to voltage signal by charge amplifier (12), the signal that charge amplifier (12) exports after low pass filter (13) by unwanted high-frequency interferencing signal filtering, 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), store and export.
This detailed description of the invention reasonable in design, simple to operate, easy to use, there is autostore function, directly accurately provide parameter, intuitively can evaluate rock-soil engineering parameters.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; 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 all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a memory-type piezoelectricity electrical measurement dynamic sounding device, is characterized in that: it comprises probing shell (1), latching connector (2), load cover (3), conehead (4), fore-set (5), power transmission medium (6), piezoelectric transducer (7), wire (8), adapter sleeve (9), blanking cover (10), measure supporting battery pack (11), charge amplifier (12), low pass filter (13), peak-holding circuit (14) and A/D transit storage (15), one end of probing shell (1) is connected with latching connector (2), the other end of probing shell (1) is connected with conehead (4) by load cover (3), is provided with fore-set (5) in load cover (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 with the supporting battery pack of measurement (11) through adapter sleeve (9), is provided with blanking cover (10) in adapter sleeve (9).
2. a kind of memory-type piezoelectricity electrical measurement dynamic sounding device according to claim 1, it is characterized in that: described probing shell (1) inside is 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) are connected successively with A/D transit storage (15), and charge amplifier (12) is connected with piezoelectric transducer (7).
3. a kind of memory-type piezoelectricity electrical measurement dynamic sounding device according to claim 1, it is characterized in that: its operating principle: by weight, power is delivered to conehead (4), conehead (4) under gravity, in the soil layer that injection is different, according to the principle of active force and reaction force, reaction force passes to power on piezoelectric transducer (7) by fore-set (5) and power transmission medium (6) etc., piezoelectric transducer (7) converts the charge signal that sensor exports to voltage signal by charge amplifier (12), the signal that charge amplifier (12) exports after low pass filter (13) by unwanted high-frequency interferencing signal filtering, 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), store and export.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 true CN104452727A (en) | 2015-03-25 |
| CN104452727B CN104452727B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839608A (en) * | 2016-03-28 | 2016-08-10 | 铁道第三勘察设计院集团有限公司 | Hammering method for dynamic penetration test and in-hole hammering device thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468539B (en) * | 2018-03-29 | 2021-08-24 | 东南大学 | Drill bit pressure real-time measuring device during construction of cement soil mixing pile |
Citations (5)
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|---|---|---|---|---|
| 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 |
| CN201605569U (en) * | 2010-02-01 | 2010-10-13 | 陈怀峰 | Dual-bridge static sounding large-range probe head |
| CN102094410A (en) * | 2009-12-15 | 2011-06-15 | 杨砚儒 | Static/dynamic sounding apparatus |
| 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 |
-
2014
- 2014-12-05 CN CN201410728655.0A patent/CN104452727B/en active Active
Patent Citations (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 |
Non-Patent Citations (1)
| Title |
|---|
| 程骁，张凤祥: "《土建注浆施工与效果检测》", 31 January 1998, article "记忆式三功能静力触探仪" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839608A (en) * | 2016-03-28 | 2016-08-10 | 铁道第三勘察设计院集团有限公司 | Hammering method for dynamic penetration test and in-hole hammering device thereof |
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| CN104452727B (en) | 2016-08-24 |
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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. |