CN211174083U - Penetration test equipment and penetration test recorder thereof - Google Patents
Penetration test equipment and penetration test recorder thereof Download PDFInfo
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- CN211174083U CN211174083U CN201922187451.1U CN201922187451U CN211174083U CN 211174083 U CN211174083 U CN 211174083U CN 201922187451 U CN201922187451 U CN 201922187451U CN 211174083 U CN211174083 U CN 211174083U
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Abstract
The embodiment of the application relates to the technical field of geological exploration in-situ testing, in particular to penetration test equipment and a penetration test recorder thereof. The penetration test recorder comprises a test depth measuring device for measuring the test depth, a penetration measuring device for measuring the penetration of each hammering, a penetration measuring device for measuring the hammering number and a data acquisition device; the test depth measuring device, the penetration measuring device and the penetration number measuring device are in signal connection with the data acquisition device, acquired measuring signals are input into the data acquisition device, and the data acquisition device processes and stores the measuring signals. The penetration test recorder can automatically record the test depth, the penetration degree and the penetration impact number, overcomes the defects of long test depth measurement time consumption, low data acquisition efficiency, low data accuracy, high labor cost and the like in the prior art, and improves the intelligent level of penetration test data acquisition in geological exploration.
Description
Technical Field
The application relates to the technical field of geological exploration in-situ testing, in particular to penetration test equipment and a penetration test recorder thereof.
Background
In field geological exploration, a penetration test (mainly comprising a standard penetration test and a dynamic penetration test) is often used for obtaining the physical and mechanical property indexes of foundation soil. In the penetration test process, a penetrating device with a certain specification is driven into soil at the bottom of a drilling hole by utilizing a hammering function (a certain mass of hammer weight freely falls for a fixed distance), and parameters such as compactness, foundation bearing capacity, deformation indexes and the like of foundation soil can be obtained through test comparison and relevant analysis. The standard penetration test is commonly used for general cohesive soil, silty soil and sandy soil, and the dynamic penetration test is commonly used for sandy soil and gravel soil. The parameters needing to be recorded in the penetration test comprise test depth, penetration and penetration impact number, and the three parameters are usually obtained by manual measurement and recording of field personnel, so that the penetration test has the problems of long measurement time consumption, low data acquisition efficiency, low data accuracy and high labor cost.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a penetration test device and a penetration test recorder thereof, and the penetration test recorder can automatically record test depth, penetration degree and penetration impact number, solves the defects of long test depth measurement time consumption, low data acquisition efficiency, low data accuracy, high labor cost and the like in the prior art, and improves the intelligent level of penetration test data acquisition in geological exploration.
According to a first aspect of embodiments of the present application, there is provided a penetration test recorder including a test depth measuring device for measuring a test depth, a penetration measuring device for measuring a penetration of each hammering, a penetration measuring device for measuring a hammering count, and a data collecting device;
the test depth measuring device, the penetration measuring device and the penetration number measuring device are in signal connection with the data acquisition device and input the acquired measurement signals into the data acquisition device, and the data acquisition device processes and stores the measurement signals.
Preferably, the penetration measuring device comprises a laser instrument and a laser reflecting plate which are oppositely arranged along the vertical direction;
the laser instrument is in signal connection with the data acquisition device and inputs the time difference between the emission and the reception of the laser into the data acquisition device;
and the data acquisition device calculates the penetration according to the time difference.
Preferably, the laser reflecting plate is an annular reflecting plate.
Preferably, the penetration number measuring device comprises a stress strain gauge in signal connection with the data acquisition device;
and the data acquisition device records the hammering number according to the stress value of the stress strain gauge.
Preferably, the penetration number measuring device comprises a resistance strain gauge in signal connection with the data acquisition device;
and the data acquisition device records the hammering number according to the resistance value of the resistance strain gauge.
Preferably, the test depth measuring device is a detector for detecting the stress wave and the reflected wave thereof.
Preferably, the data acquisition device comprises a positioning component for acquiring the position information of the test point
Preferably, the Positioning component is a Beidou locator or a GPS (Global Positioning System) locator.
In addition, according to a second aspect of the embodiment of the application, the penetration test equipment is further provided, and comprises a penetration rod and any penetration test recorder provided by the technical scheme;
the top of the feeler lever is provided with a hammer pad;
the test depth measuring device, the penetration measuring device and the penetration number measuring device are all fixedly arranged on the feeler lever.
Preferably, the test depth measuring device is adhered to the feeler lever.
Adopt the penetration test equipment that provides in this application embodiment and penetration test record appearance thereof, have following beneficial effect:
the penetration test recorder comprises a test depth measuring device for measuring the test depth, a penetration measuring device for measuring the penetration of each hammering, a penetration measuring device for measuring the hammering number and a data acquisition device, wherein the test depth is measured by the test depth measuring device, the penetration of each hammering is measured by the penetration measuring device, the hammering number is measured by the penetration measuring device, the measurement signals of the test depth measuring device, the penetration measuring device and the penetration measuring device are obtained by the data acquisition device, the test depth, the penetration and the penetration are automatically recorded by the data acquisition device, manual field measurement or recording is not needed, the influence of human factors such as time consumption caused by manual measurement and easy error recording is avoided, and a technician is not needed to be equipped for each unit, therefore, by adopting the penetration test recorder, the defects of long test depth measurement time consumption, low data acquisition efficiency, low data accuracy, high labor cost and the like in the prior art can be overcome, and the intelligent level of penetration test data acquisition in geological exploration is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a penetration test apparatus according to an embodiment of the present application.
Reference numerals:
1-penetration test equipment; 2-the ground;
11-feeler lever; 12-a sounding test recorder; 13-punching hammer; 21-drilling;
111-hammer pads; 121-test depth measuring device; 122-penetration measuring device; 123-penetration number measuring device; 124-data acquisition means; 125-a cable; 1221-laser instrument; 1222 laser reflector.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the embodiment of the application, the test depth refers to the depth of implementing the penetration test; the penetration degree refers to the length of the penetration device driven into the hole bottom soil of the drilled hole; the penetration number refers to the number of hammering times when the penetration device is driven into the hole bottom soil layer of the drilled hole for a certain length.
The embodiment of the application provides a penetration test device 1 and a penetration test recorder 12 for the penetration test device 1, and as shown in the structure of fig. 1, the penetration test device 1 comprises a penetration rod 11, the penetration test recorder 12 and force application devices such as a penetrating hammer 13 arranged at the top of the penetration rod 11; the top of the feeler lever 11 is provided with a hammer pad 111; when the penetration test equipment 1 is used for carrying out penetration test, the penetrating hammer 13 is positioned at the upper part of the penetration rod 11, one part of the penetration rod 11 is positioned in the drill hole 21 of the ground 2, the other part of the penetration rod is exposed out of the ground 2, the bottom of the penetration rod 11 is provided with a penetration device or a penetration probe (not shown in the figure), the penetrating hammer 13 freely falls down to hammer the hammer pad 111, the penetrating hammer 13 applies a hammering force along the vertical direction to the penetration rod 11, the penetration rod 11 transmits the hammering force of the penetrating hammer 13 to the penetration device or the penetration probe at the bottom of the penetration rod 11, and the penetration device or the penetration probe is driven into the soil layer at the bottom of the drill hole 21; the penetration degree of the penetrometer or the penetration probe can be determined according to the actual needs of the test.
The penetration test recorder 12 used in the penetration test apparatus 1 described above can be implemented by the following specific structure:
as shown in the structure of fig. 1, the penetration test recorder 12 includes a test depth measuring device 121 for measuring a test depth, a penetration measuring device 122 for measuring a penetration of each hammering, a penetration measuring device 123 for measuring a hammering number, and a data collecting device 124; the test depth measuring device 121, the penetration measuring device 122 and the penetration number measuring device 123 are all fixedly mounted on the feeler lever 11; the test depth measuring device 121 may be adhered to the feeler lever 11; the test depth measuring device 121, the penetration measuring device 122 and the penetration number measuring device 123 are all in signal connection with the data acquisition device 124, and input the acquired measurement signals to the data acquisition device 124, and the data acquisition device 124 processes and stores the measurement signals.
The penetration test equipment 1 comprises a penetration rod 11, a penetrating hammer 13 and a penetration test recorder 12, wherein the penetration test recorder 12 comprises a test depth measuring device 121 for measuring the test depth, a penetration measuring device 122 for measuring the penetration of each hammering, a penetration measuring device 123 for measuring the hammering number and a data acquisition device 124, the test depth is measured by the test depth measuring device 121, the penetration of each hammering is measured by the penetration measuring device 122, the hammering number is measured by the penetration measuring device 123, the measurement signals of the test depth measuring device 121, the penetration measuring device 122 and the penetration measuring device 123 are acquired by the data acquisition device 124, the test depth, the penetration and the penetration are automatically recorded by the data acquisition device 124, manual field measurement or recording is not needed, and the problems that the consumed time is long due to manual measurement, the penetration is not needed, and the penetration is not needed to be manually measured are avoided, The manual recording is easy to be influenced by human factors such as errors and the like, and a technician is not required to be equipped for each unit.
Therefore, the penetration test recorder 12 can overcome the defects of long test depth measurement time consumption, low data acquisition efficiency, low data accuracy, high labor cost and the like in the prior art, and improve the intelligent level of penetration test data acquisition in geological exploration.
In the above-mentioned contact test recorder 12, as shown in the structure of fig. 1, the penetration measuring device 122 includes a laser meter 1221 and a laser reflector 1222 which are arranged opposite to each other in the vertical direction; the laser instrument 1221 is fixedly arranged on the feeler lever 11 between the hammer pad 111 and the orifice of the drill hole 21, the distance between the laser instrument 1221 and the ground 2 is not smaller than 0.5m, and the laser reflection plate 1222 is fixedly arranged on the ground 2; the laser reflector 1222 may be a ring reflector surrounding the ground 2 disposed around the circumference of the feeler lever 11; the laser 1221 is in signal connection with the data acquisition device 124, and inputs the time difference between the laser emission and the laser reception to the data acquisition device 124; the data acquisition device 124 calculates the penetration from the time difference.
The operation principle of the penetration measuring device 122 is as follows: the laser instrument 1221 in the penetration measuring device 122 is fixed on the probe rod, the laser reflector 1222 is fixed on the ground 2 around the drill hole 21, when the penetrating hammer 13 freely falls down to hammer the hammer pad 111, the laser instrument 1221 is excited to vertically emit laser downwards, the laser meets the laser reflector 1222 and then reflects, the reflected light is received by the laser instrument 1221, the laser instrument 1221 can be connected with the data acquisition device 124 through the cable 125, the data acquisition device 124 can calculate the ground clearance of the hammer penetration measuring device 122 each time according to the time difference between the laser emission and the laser reception of the laser instrument 1221 and the propagation speed of the laser, and the height difference between the front and the back ground clearances is the penetration.
Because above-mentioned penetration measuring device 122 adopts laser instrument 1221 and the laser reflecting plate 1222 of relative setting to carry out the measurement of penetration, laser instrument 1221 and laser reflecting plate 1222 have the fast characteristics of response speed, not only can replace the manual work to measure through laser instrument 1221 and laser reflecting plate 1222, have moreover that measuring speed is fast, measuring accuracy is high and measure the characteristics that realize intellectuality.
As shown in the structure of fig. 1, the penetration measuring device 123 is mounted on the feeler lever 11 between the pad 111 and the opening of the borehole 21, and the penetration measuring device 123 may include a stress strain gauge or a resistance strain gauge in signal connection with the data acquisition device 124; the stress strain gauge or the resistance strain gauge can be directly adhered to the feeler lever 11; the data acquisition device 124 records the hammering number according to the stress value of the stress strain gauge or the resistance value of the resistance strain gauge.
The penetration measuring device 123 has the following working principle: the stress strain gauge or the resistance strain gauge used as the penetration number measuring device 123 may be directly attached to the feeler lever 11 under the hammer pad 111; the stress strain gauge or the resistance strain gauge can be connected with the data acquisition device 124 through a cable 125; the long axis direction of the stress strain gauge is parallel to the extending direction of the feeler lever 11 and is used for measuring axial strain; when the stress strain gauge is adopted, the stress strain gauge converts a hammering signal of the penetrating hammer 13 into a force signal, when the penetrating hammer 13 hammers the hammer pad 111 at the top of the feeler lever 11, the strain measured by the stress strain gauge is maximum, the larger the converted force peak value is, and the data acquisition device 124 records the hammering number by recording the force peak value signal; when the resistance strain gauge is adopted, the resistance strain gauge converts a hammering signal of the penetrating hammer 13 into a resistance signal, when the penetrating hammer 13 hammers the hammer pad 111 at the top of the feeler lever 11, the maximum strain measured by the resistance strain gauge is larger, the larger the peak value converted into the resistance is, and the data acquisition device 124 records the hammering number by recording the peak value signal of the resistance, so that the measurement of the hammering number is realized.
Since the penetration number measuring device 123 uses the stress strain gauge or the resistance strain gauge to measure the penetration number, both the stress strain gauge or the resistance strain gauge can quickly reflect the hammering action of the through hammer 13, and can accurately reflect the hammering number through the force signal or the resistance signal, therefore, the penetration number measuring device 123 using the stress strain gauge or the resistance strain gauge also has the characteristics of high measuring speed, high measuring accuracy and intelligentized measurement.
In the above-mentioned contact test recorder 12, the test depth measuring device 121 is a detector for detecting the stress wave and the reflected wave thereof, and as shown in the structure of fig. 1, the detector serving as the test depth measuring device 121 is mounted on the contact rod 11 between the pad 111 and the hole of the borehole 21, and may be directly adhered to the contact rod 11 below the pad 111.
The working principle of the test depth measuring device 121 is as follows: when the penetration test recorder 12 is used to start a penetration test, the penetrating hammer 13 freely falls down to hammer the pad 111, the feeler lever 11 will generate a downward-propagating stress wave, when the stress wave propagates to the bottom of the borehole 21, an upward reflected wave will be generated due to the difference between the physical properties of the foundation soil and the feeler lever 11, the detector can detect the stress wave and the reflected wave, and is connected with the data acquisition device 124 through the cable 125, a detection signal is sent to the data acquisition device 124, and the data acquisition device 124 can calculate the test depth of a test point according to the time difference between the downward stress wave and the reflected wave detected by the detector and the propagation wave velocity of the stress wave in the feeler lever 11.
On the basis of the above-mentioned various embodiments, the data acquisition device 124 may further include a positioning component (not shown in the figure) for acquiring the position information of the test point; the positioning component can be a Beidou positioner or a GPS positioner.
Above-mentioned locating component such as big dipper locator or GPS locator can directly set up in data acquisition device 124 for gather the locating information of test point, in order to avoid appearing the phenomenon by porous use with an original data, further improve the accuracy and the reliability of penetration test result.
The data acquisition device 124 can be implemented by a microprocessor, a microcomputer, a single chip microcomputer, and a P L C (Programmable L analog Controller).
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A penetration test recorder is characterized by comprising a test depth measuring device for measuring test depth, a penetration measuring device for measuring penetration of each hammering, a penetration measuring device for measuring hammering number and a data acquisition device;
the test depth measuring device, the penetration measuring device and the penetration number measuring device are in signal connection with the data acquisition device and input the acquired measurement signals into the data acquisition device, and the data acquisition device processes and stores the measurement signals.
2. The penetrometer of claim 1 wherein said penetration measuring means comprises a laser and a laser reflector disposed vertically opposite each other;
the laser instrument is in signal connection with the data acquisition device and inputs the time difference between the emission and the reception of the laser into the data acquisition device;
and the data acquisition device calculates the penetration according to the time difference.
3. The penetrometer of claim 2 wherein said laser reflector is an annular reflector.
4. The penetrometer of claim 1 wherein said penetration shot measurement device comprises a strain gage in signal communication with said data acquisition device;
and the data acquisition device records the hammering number according to the stress value of the stress strain gauge.
5. The penetrometer of claim 1 wherein said penetration rate measuring device comprises a resistance strain gauge in signal communication with said data acquisition device;
and the data acquisition device records the hammering number according to the resistance value of the resistance strain gauge.
6. The sounding test recorder according to claim 5, wherein the test depth measuring device is a geophone for detecting stress waves and their reflected waves.
7. The sounding test recorder according to any one of claims 1 to 6, wherein the data acquisition device comprises a positioning assembly for acquiring positional information of the test site.
8. The sounding test recorder according to claim 7, wherein the positioning component is a Beidou locator or a GPS locator.
9. A penetration test apparatus comprising a penetration rod and a penetration test recorder as claimed in any one of claims 1 to 8;
the top of the feeler lever is provided with a hammer pad;
the test depth measuring device, the penetration measuring device and the penetration number measuring device are all fixedly arranged on the feeler lever.
10. The penetration test apparatus of claim 9, wherein the test depth measuring device is affixed to the feeler lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922187451.1U CN211174083U (en) | 2019-12-09 | 2019-12-09 | Penetration test equipment and penetration test recorder thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922187451.1U CN211174083U (en) | 2019-12-09 | 2019-12-09 | Penetration test equipment and penetration test recorder thereof |
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| CN211174083U true CN211174083U (en) | 2020-08-04 |
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