CN2599574Y - Soil layer resistance electric measuring sensor - Google Patents
Soil layer resistance electric measuring sensor Download PDFInfo
- Publication number
- CN2599574Y CN2599574Y CNU032116551U CN03211655U CN2599574Y CN 2599574 Y CN2599574 Y CN 2599574Y CN U032116551 U CNU032116551 U CN U032116551U CN 03211655 U CN03211655 U CN 03211655U CN 2599574 Y CN2599574 Y CN 2599574Y
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- hammer
- sleeve
- lining
- probe
- column sleeve
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to an electric measuring sensor for a soil stratum, which is used to dynamically measure resistance of the soil stratum. The sensor comprises a guide pole of a drop hammer, a hammer bearing part and a probe connected to a lower end of a probe pole. A jacking strut inserted in an internal cavity of a lining, a gasket, and a piezoelectric sensor element at a lower end of a hammer bearing seat coordinating with the hammer bearing part along an axial direction of the probe pole. A drogue fits into an external wall of the lining and is connected to the hammer-bearing seat. A lower end of the external wall of the lining is connected to one end of a connecting sleeve, while a stepped column sleeve is connected to an internal wall of the other end of the connecting sleeve. A bearing plate is installed between a top end of the column sleeve and a boss of the internal wall of the connecting sleeve, and the other piezoelectric sensor is connected with the bearing plate. A tail end of the column sleeve is connected with the probe pole through a lock joint. The utility model is characterized in the accurate measuring value, the stable and reliable performance and so on. Moreover, with the measuring sensor, dynamic measuring of the soil stratum in a geological survey for a project is realized, and continuous measuring under the complicated geological conditions can be done.
Description
Technical field the utility model relates to a kind of electrometric sensor, and especially a kind of being used for surveyed the soil layer resistance electrometric sensor that geology soil layer resistance is carried out kinetic measurement in engineering geology.
Background technology is in engineering geological investigation experiments such as dynamic sounding that geology soil layer resistance is carried out former detection examination and standard injection, usually adopt free gravity drop hammer to impact feeler lever, thereby will move and visit conehead or penetrator is squeezed into soil layer, and come qualitatively analyze to judge the character of soil layer according to the hammering number and the degree of depth of squeezing into soil layer.Because the resulting test result of above-mentioned work, influenced by human factor such as getting sth into one's head of operator, so its reliability is relatively poor, can't obtain accurate soil property index.
The summary of the invention the purpose of this utility model provides a kind of measurement numerical value soil layer resistance electrometric sensor accurately.
For achieving the above object, the utility model soil layer resistance electrometric sensor comprises the probe that free-falling hammer guide rod, hammer hold part and be connected with the feeler lever lower end, axially be provided with fore-set, cushion block, the piezoelectric sensor that is plugged on the lining inner chamber successively holding the hammer bearing lower end edge feeler lever that part cooperates with hammer, the outer wall of lining is socketed with tapered sleeve, and this tapered sleeve is connected with the hammer bearing; Outer wall lower end at described lining is connected with an end of adapter sleeve, and stair-stepping column sleeve is connected with the inwall of the adapter sleeve other end, between the top of this column sleeve and the adapter sleeve inwall boss support plate is installed, and another piezoelectric sensor is connected with support plate; The end of column sleeve is connected with feeler lever by latching connector.
Adopt above-mentioned standard injection electrical measurement structure, the hammer force that produces that drops hammer when carrying out standard injection electrical measurement is passed to two piezoelectric sensors successively, directly be converted to the electric signal that is directly proportional and is directly proportional with hammer force with acceleration, and be transported to measuring instrument and registering instrument, draw value, transient acceleration value and the change curve separately of hammer force.
As further improvement of the utility model, between probe and feeler lever, be connected with stepped column sleeve one end by latching connector along the lower axial end of feeler lever, the other end of this column sleeve is connected with the inwall of adapter sleeve, support plate is installed between adapter sleeve inwall boss and the column sleeve, and piezoelectric sensor is connected with support plate; The other end inwall of adapter sleeve is plugged with lining, the fore-set that the inner chamber of this lining is equipped with piezoelectric sensor, cushion block successively and contacts with the probe inner wall at end, and popping one's head in is connected with the tapered sleeve that is socketed in the lining outer wall is terminal.Adopt this dynamic sounding electrical measurement structure, when carrying out the dynamic sounding electrical measurement when bearing hammering, the soil layer resistance is passed to two piezoelectric sensors between probe and the feeler lever, and directly be converted to the electric signal that soil layer resistance and acceleration be directly proportional and be delivered to measuring instrument and registering instrument, draw the numerical value and the change curve of soil layer resistance and acceleration.
The utility model has the advantages that: compact conformation, numerical measuring accurately, realized dynamic test to the geology soil layer.Meet the GB50021-2001 relevant regulations, can avoid the influence of complicated geological environment and temperature variation preferably test job, stable and reliable for performance; Because adopt the integrally closed structure, waterproof and dampproof property is good.
The structural representation that description of drawings Fig. 1 carries out standard injection work for the utility model soil layer resistance electrometric sensor.
Structural representation when Fig. 2 carries out the dynamic sounding test for the utility model soil layer resistance electrometric sensor.
Embodiment such as Fig. 1 show, the utility model soil layer resistance electrometric sensor comprises that free-falling hammer guide rod 11, hammer hold the probe 1 that part 10 reaches the standard penetrometer that is connected with feeler lever 14 lower ends, holding hammer bearing 9 lower end edge feeler levers 14 axial fore-set 8, cushion block 5, the piezoelectric sensors 2 that are plugged on lining 6 inner chambers that are provided with successively that part 10 cooperates with hammer, the outer wall of lining 6 is socketed with tapered sleeve 7, and this tapered sleeve 7 is connected with hammer bearing 9 inner threads; Outer wall lower end at described lining 6 is connected with the threaded one end of adapter sleeve 4, stair-stepping column sleeve 12 is connected with the inner thread of adapter sleeve 4 other ends, between the top of this column sleeve 12 and the adapter sleeve 4 inwall boss support plate 3 is installed, another piezoelectric sensor 2 is threaded with support plate 3; The end of column sleeve 12 is connected with feeler lever 14 by latching connector 13.
When carrying out standard injection electrical measurement, free-falling hammer impacts hammer through free-falling hammer guide rod 11 and holds part 10, acting force is passed to piezoelectric sensor 2 and directly is converted to the electric signal that is directly proportional with hammer force through hammer bearing 9, fore-set 8, cushion block 5 and is delivered to measuring instrument and registering instrument through cable, obtains the value and the change curve of hammer force; Acting force is passed to the piezoelectric sensor 2 in the column sleeve 12 and directly is converted to the electric signal that is directly proportional with acceleration through lining 6, adapter sleeve 4, support plate 3 more simultaneously, be delivered to measuring instrument and registering instrument through cable, obtain the numerical value and the change curve of transient acceleration.
Show as Fig. 2, on the basis of above-mentioned standard injection electrical measurement structure, between probe 1 and feeler lever 14, be connected with stepped column sleeve 12 1 ends by latching connector 13 along the lower axial end of feeler lever 14, the other end of this column sleeve 12 is connected with the inner thread of adapter sleeve 4, support plate 3 is installed between adapter sleeve 4 inwall boss and the column sleeve 12, and piezoelectric sensor 2 is threaded with support plate 3; The other end inner thread of adapter sleeve 4 is connected with lining 6, the fore-set 8 that the inner chamber of this lining 6 is equipped with piezoelectric sensor 2, cushion block 5 successively and contacts with probe 1 inner wall at end, and popping one's head in 1 is connected with the end thread of the tapered sleeve 7 that is socketed in lining 6 outer walls.
When carrying out the dynamic sounding electrical measurement, top is subjected to the moment of hammering, the soil layer resistance through pop one's head in 1, fore-set 8, cushion block 5 be passed to lower piezoelectric sensing element 2, and directly be converted to the electric signal that the soil layer resistance is directly proportional, be delivered to measuring instrument and registering instrument through signal cable, obtain soil layer Resistance Value and change curve; Simultaneously the soil layer resistance is passed to piezoelectric sensor 2 in the column sleeve 12 through lining 6, adapter sleeve 4, support plate 3 again, and directly be converted to the electric signal that is directly proportional with acceleration, be delivered to measuring instrument and registering instrument through signal cable, draw transient acceleration value and change curve.Meanwhile the top hammer force holds part 10, hammer bearing 9, fore-set 8, cushion block 5 by hammer and is passed to piezoelectric sensor 2, and directly be converted to the electric signal that is directly proportional with hammer force and be delivered to measuring instrument and registering instrument through cable, obtain the value and the change curve of hammer force; Be passed to the piezoelectric sensor 2 in the column sleeve 12 and directly be converted to the electric signal that is directly proportional with acceleration through lining 6, adapter sleeve 4, support plate 3 again, be delivered to measuring instrument and registering instrument, measure the numerical value and the change curve of transient acceleration through cable.
Can also can use the electrical measurement structure between probe and the feeler lever separately, the numerical value of suffered soil layer resistance of measuring sonde and transient acceleration according to the concrete condition and the requirement of engineering investigation during use.The latching connector that link to each other with feeler lever this moment directly links to each other with the awl bearing.
The utlity model has compact conformation, accurate, stable and reliable for performance, the waterproof and dampproof property of numerical measuring is good Etc. characteristics. Realized the dynamic test to the geology soil layer; Can finish the follow-on test worker under the complicated geological environment Do.
Claims (2)
1, a kind of soil layer resistance electrometric sensor, comprise the probe (1) that free-falling hammer guide rod (11), hammer hold part (10) and be connected with feeler lever (14) lower end, it is characterized in that: axially be provided with fore-set (8), cushion block (5), the piezoelectric sensor (2) that is plugged on lining (6) inner chamber successively holding hammer bearing (9) the lower end edge feeler lever (14) that part (10) cooperates with hammer, the outer wall of lining (6) is socketed with tapered sleeve (7), and this tapered sleeve (7) is connected with hammer bearing (9); Outer wall lower end at described lining (6) is connected with an end of adapter sleeve (4), stair-stepping column sleeve (12) is connected with the inwall of adapter sleeve (4) other end, between top of this column sleeve (12) and adapter sleeve (4) the inwall boss support plate (3) is installed, another piezoelectric sensor (2) is connected with support plate (3); The end of column sleeve (12) is connected with feeler lever (14) by latching connector (13).
2, soil layer resistance electrometric sensor according to claim 1, it is characterized in that: the lower axial end along feeler lever (14) between probe (1) and feeler lever (14) is connected with stepped column sleeve (12) one ends by latching connector (13), the other end of this column sleeve (12) is connected with the inwall of adapter sleeve (4), support plate (3) is installed between adapter sleeve (4) inwall boss and the column sleeve (12), and piezoelectric sensor (2) is connected with support plate (3); The other end inwall of adapter sleeve (4) is connected with lining (6), the fore-set (8) that the inner chamber of this lining (6) is equipped with piezoelectric sensor (2), cushion block (5) successively and contacts with probe (1) inner wall at end, probe (1) is connected with the tapered sleeve (7) that is socketed in lining (6) outer wall is terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032116551U CN2599574Y (en) | 2003-03-01 | 2003-03-01 | Soil layer resistance electric measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032116551U CN2599574Y (en) | 2003-03-01 | 2003-03-01 | Soil layer resistance electric measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599574Y true CN2599574Y (en) | 2004-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032116551U Expired - Fee Related CN2599574Y (en) | 2003-03-01 | 2003-03-01 | Soil layer resistance electric measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599574Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879031A (en) * | 2012-09-01 | 2013-01-16 | 安徽南风环境工程技术有限公司 | Bracket |
-
2003
- 2003-03-01 CN CNU032116551U patent/CN2599574Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879031A (en) * | 2012-09-01 | 2013-01-16 | 安徽南风环境工程技术有限公司 | Bracket |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Shunya Document name: Notification of Termination of Patent Right |
|
| 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 |