CN117211774A - Mechanical testing device applied to fourth-line stratum engineering investigation and application method thereof - Google Patents
Mechanical testing device applied to fourth-line stratum engineering investigation and application method thereof Download PDFInfo
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- CN117211774A CN117211774A CN202311084090.2A CN202311084090A CN117211774A CN 117211774 A CN117211774 A CN 117211774A CN 202311084090 A CN202311084090 A CN 202311084090A CN 117211774 A CN117211774 A CN 117211774A
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- 238000012360 testing method Methods 0.000 title claims abstract description 300
- 238000011835 investigation Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 claims abstract description 119
- 238000013480 data collection Methods 0.000 claims abstract description 33
- 238000013500 data storage Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000035515 penetration Effects 0.000 description 12
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A90/30—Assessment of water resources
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Abstract
The invention discloses a mechanical testing device applied to fourth-line stratum engineering investigation, and relates to the technical field of engineering drilling testing. The device comprises an in-hole test device and an out-hole device; the upper part of the in-hole testing device is connected with the drill rod, the lower part of the in-hole testing device is connected with the drilling tool, and the in-hole testing device comprises a through round hole and an annular cavity; the annular cavity is internally provided with a data collection, storage and trigger control system, a test mechanical system and a power supply; the data collection, storage and trigger control system comprises a data collection system, a storage system and a trigger control system; the out-of-hole device is a surface clock system. The invention is convenient to operate and master, has low equipment cost, greatly reduces the labor intensity and time consumption of drilling test, has high reliability of collected data, and has the advantages of high efficiency, economy, accuracy and wide application range. Has important significance for the investigation and test of the fourth series stratum. The invention also relates to a using method of the mechanical testing device applied to fourth-line stratum engineering investigation.
Description
Technical Field
The invention relates to the technical field of engineering drilling tests, in particular to a mechanical testing device applied to fourth-system stratum engineering investigation. The invention also relates to a using method of the mechanical testing device applied to fourth-line stratum engineering investigation.
Background
At present, in the field of engineering geological investigation, in-situ mechanical testing of formation drilling of the fourth system mainly comprises: standard penetration, dynamic sounding, static sounding, side pressure test, etc.
The static sounding needs to provide counter force, generally adopts a medium truck as a base and a carrier, is greatly influenced by site conditions, has limited depth, and is easy to break a probe rod or has insufficient counter force when the test depth exceeds 30 m.
The side pressure test requires special equipment and special testers to test, has high requirements on the integrity of the borehole wall, and requires special cable laying during the test.
The standard penetration and the dynamic detection are stratum testing methods commonly used in drilling work, wherein a standard penetration device (or a dynamic probe) is connected with a drill rod and is lowered into the bottom of a drilling hole, a standard penetration hammer is adopted to strike the ground, and the standard penetration number of 30cm (or 10 cm) is tested; the test method has the following main defects: 1) The tester and the drill rod are connected with the bottom of the lower hole for testing, the tester is lifted to the ground after the test is finished, and when the drilling depth is large, the time for loading and unloading the drill rod is long, and the labor intensity is high; 2) The standard penetration hammer is adopted to strike the ground, the weight of the standard penetration hammer is 63.5kg, the core bar is added with about 80kg, and the carrying is difficult, and particularly in the places with poor traffic conditions, 2-3 people are required to lift the ground difficultly; 3) The impact of factors such as rod length and drill rod joints is large in consumption of hammering energy on the drill rod, and the hammer energy is not easy to accurately determine, so that errors are large even though the methods such as rod length correction are used for carrying out reduction; 4) The depth is limited, the buried depth of the stratum is generally smaller than 20m, and the maximum depth of the standard penetration rod length correction which is clear in the relevant national specifications is 21m.
Therefore, the mechanical testing device which is used for fourth-line stratum engineering investigation and has the advantages of simple use method, easy familiarity of drilling operators and wide application range is needed.
Disclosure of Invention
A first object of the present invention is to overcome the above-mentioned drawbacks of the related art, and to provide a mechanical testing device for fourth-line formation engineering investigation.
The second object of the invention is to provide a method for using the mechanical testing device applied to fourth-line formation engineering investigation.
The third object of the present invention is to provide a method for using a mechanical testing device for testing a specific stratum and applied to fourth-line stratum engineering investigation.
In order to achieve the first object, the technical scheme of the invention is as follows: be applied to mechanics testing arrangement of fourth system stratum engineering investigation, its characterized in that: the method comprises the steps of in-hole testing equipment and out-hole equipment; the upper part of the in-hole testing equipment is connected with the drill rod, the lower part of the in-hole testing equipment is connected with the drilling tool, the in-hole testing equipment is cylindrical, and the in-hole testing equipment comprises a through round hole in the center and an annular cavity between the shell of the in-hole testing equipment and the through round hole;
the annular cavity is internally and sequentially provided with a data collection, storage and trigger control system from top to bottom, a test mechanical system connected with the data collection, storage and trigger control system, and a power supply connected with the test mechanical system;
the test mechanical system is two parallel, telescopic and reversely arranged micro feelings;
the data collection, storage and trigger control system comprises a data collection system, a storage system and a trigger control system;
the out-hole equipment is an earth surface clock system capable of carrying out a plurality of timing reminding functions.
In the technical scheme, the diameter of the through round hole is the same as the inner diameter of the drill rod, and the outer diameter of the in-hole testing equipment is the same as the outer diameter of the drilling tool.
In the above technical scheme, the annular cavity bottom is provided with the charging power interface.
In the technical scheme, a data interface, a time setting button and a display screen are arranged at the top of the annular cavity.
In order to achieve the second object, a method for using a mechanical testing device applied to fourth-system stratum engineering investigation is characterized by comprising the following steps:
step 1: assembling the in-hole testing equipment between the drill rod and the drilling tool;
step 2: according to the drilling depth, setting proper starting test trigger time and test trigger time completion for the in-hole test equipment through a trigger control system in the data collection, storage and trigger control system;
meanwhile, setting an interval of timing reminding time outside the hole, wherein the set test starting time outside the hole is 0.5-1 min earlier than the start test triggering time set by the test equipment inside the hole, and the set test completion time outside the hole is 0.5-1 min later than the test triggering time of the test equipment inside the hole;
step 3: the in-hole testing equipment, the drill rod and the drilling tool are integrally arranged in a drilling hole;
step 4: starting drilling;
step 5: when a drilling operator receives a test start prompt set outside the hole, stopping drilling, and enabling the drill rod and the drilling tool to be in a static state; when the in-hole test equipment starts to test and trigger for a set time, two micro-feelings of the test mechanical system are inserted into a hole wall soil layer, the feelings resistance is transmitted into the storage system by using the mechanical sensor, and the data collection system collects detection data according to the extension length of the micro-feelings, and each 1cm or 0.5cm of detection data is collected for 1 time;
the micro feelings are used for fully extending out, and the test is finished after the last data acquisition is carried out; after the test is completed, the two micro feelings retract into the test equipment in the hole to wait for the next triggering;
step 6: the drilling operator records the test number, time and hole depth on the drilling report;
step 7: when the drilling operator receives the reminding of the test ending time set outside the hole, the test equipment in the hole completes the test and data collection and resets;
step 8: repeating the step 4-7 to finish the drilling of the round; lifting in-hole test equipment, a drill rod and a drilling tool out of the ground; unloading the in-hole test equipment, and transmitting test data to a USB flash disk, a mobile hard disk or a computer through a data interface; or after one drilling or a plurality of drilling is finished, the test data is transmitted to a USB flash disk, a mobile hard disk or a computer through a data interface;
step 9: and forming complete test data according to the combination of the report recorded by the drilling operator and the test record of the in-hole test equipment, wherein the complete test data comprises a drilling hole number, a test serial number, a drilling depth, cone tip resistance of micro penetration and side wall friction.
In the above technical solution, in step 2, the time interval between the test start time and the test completion time set outside the hole is 3-5 minutes.
In the above technical solution, in step 5, when the resistance of the cone tip of the micro-probe reaches 50N, test data is recorded, and the micro-probe is retracted into the inside of the in-hole test device.
In the above technical solution, in step 2, the time interval between the start test trigger time and the completion test trigger time of the in-hole test device should be greater than the time consumed for drilling and less than the time consumed for drilling back, so as to ensure that the test site is located within the depth range of the stratum to be detected.
In order to achieve the third object, a method for using a mechanical testing device for fourth-system formation engineering investigation is characterized by comprising the following steps:
step 1: the in-hole testing equipment, the drill rod and the drilling tool are integrally arranged in a drilling hole; according to the drilling depth, setting proper starting test trigger time and test trigger time completion for the in-hole test equipment through a trigger control system in the data collection, storage and trigger control system; meanwhile, setting an interval of timing reminding time outside the hole, wherein the set test starting time outside the hole is 0.5-1 min earlier than the start test triggering time set by the test equipment inside the hole, and the set test completion time outside the hole is 0.5-1 min later than the test triggering time of the test equipment inside the hole;
step 2: the in-hole testing equipment is positioned in the stratum depth to be measured, and a ground clock system waits for timing reminding;
step 3: when a drilling operator receives a test start prompt set outside the hole, the drill rod and the drilling tool are in a static state; when the in-hole test equipment sets the starting test trigger time, two micro-feelings of the test mechanical system are inserted into the hole wall soil layer, the feelings resistance is transmitted into the storage system by using the mechanical sensor, and the data collection system collects detection data according to the extension length of the micro-feelings, and each 1cm or 0.5cm is collected for 1 time;
the micro feelings are used for fully extending out, and the test is finished after the last data acquisition is carried out; after the test is completed, the two micro feelings retract into the test equipment in the hole to wait for the next triggering;
step 4: the drilling operator records the test number, time and hole depth on the drilling report;
step 5: when the drilling operator receives the reminding of the test ending time set outside the hole, the test equipment in the hole completes the test and data collection and resets;
step 6: repeating the steps 3-5, and lifting the in-hole testing equipment, the drill rod and the drilling tool out of the ground; unloading the in-hole test equipment, and transmitting test data to a USB flash disk, a mobile hard disk or a computer through a data interface; transmitting the test data to a USB flash disk, a mobile hard disk or a computer through a data interface;
step 7: and forming complete test data according to the combination of the report recorded by the drilling operator and the test record of the in-hole test equipment, wherein the complete test data comprises a drilling hole number, a test serial number, a drilling depth, cone tip resistance of micro penetration and side wall friction.
Compared with the prior art, the invention has the following advantages:
1) The invention adopts a time synchronization scheme to solve the problem of triggering of the in-hole testing device and matching of ground drilling operators.
2) The invention is convenient to operate and master, has low equipment cost, greatly reduces the labor intensity and time consumption of drilling test, has high reliability of collected data, and has the advantages of high efficiency, economy, accuracy and wide application range. Has important significance for the investigation and test of the fourth series stratum.
3) The in-hole testing equipment adopted by the invention is used for drilling together with the drill rod and the drilling tool, and only the drilling is stopped during testing, so that additional lifting and running are not needed, and the efficacy is greatly improved.
4) The invention does not need drill rod to transfer force, has low energy loss and ensures the reliability of test data.
5) The invention adopts automatic collection and storage of test data, has high data accuracy and low probability of dislocation.
6) The invention is not limited by the drilling depth and has wide application.
7) The method is simple and easy to be mastered by drilling operators.
8) The invention can test a specific stratum and is flexible and convenient to use.
Drawings
FIG. 1 is a diagram of the connection of an in-hole testing apparatus, drill pipe and drilling tool.
FIG. 2 is a schematic diagram of the structure of the in-hole testing apparatus.
Fig. 3 is a cross-sectional view at A-A in fig. 2.
Fig. 4 is a cross-sectional view at B-B of fig. 2 with the micro-probe retracted inside the in-well test device.
Fig. 5 is a cross-sectional view at B-B in fig. 2 when a micro-penetration is inserted into the borehole wall soil layer.
Fig. 6 is a cross-sectional view at C-C in fig. 2.
Fig. 7 is a cross-sectional view at D-D in fig. 2.
The device comprises a 1-hole internal test device, a 2-drill rod, a 3-drilling tool, an 11-through round hole, a 12-annular cavity, a 121-charging power interface, a 122-data interface, a 123-time setting button and a display screen, a 13-data collecting, storing and triggering control system, a 14-test mechanical system, a 141-micro sounding system, a 142-micro motor and a 15-power supply.
Detailed Description
The following detailed description of the invention is, therefore, not to be taken in a limiting sense, but is made merely by way of example. While the advantages of the invention will become apparent and readily appreciated by reference to the following description.
As can be seen with reference to the accompanying drawings: the mechanical testing device applied to fourth-line stratum engineering investigation comprises an in-hole testing device 1 and an out-hole device; the upper part of the in-hole testing equipment 1 is connected with the drill rod 2, the lower part of the in-hole testing equipment 1 is connected with the drilling tool 3, the in-hole testing equipment 1 is cylindrical, and the in-hole testing equipment 1 comprises a through round hole 11 positioned at the center and an annular cavity 12 positioned between the outer shell of the in-hole testing equipment 1 and the through round hole 11;
the annular cavity 12 is internally and sequentially provided with a data collection, storage and trigger control system 13 from top to bottom, a test mechanical system 14 connected with the data collection, storage and trigger control system 13, and a power supply 15 connected with the test mechanical system 14;
the test mechanical system 14 is two parallel, telescopic and reversely arranged micro feelers 141; the in-hole testing device 1 tests the mechanical property of the soil body of the hole wall of the drill hole, the electric energy is provided by the power supply 15, the micro motor 142 is adopted to drive the two micro feelers 141 which are arranged in parallel in the device to be inserted into the soil layer of the hole wall, and the feeler resistance is transmitted into the storage system by the mechanical sensor; after the test is completed, the two micro feelers 141 are reset, enter the inside of the test equipment 1, and are used for the next triggering.
The data collection, storage and trigger control system 13 comprises a data collection system, a storage system and a trigger control system;
the out-hole equipment is an earth surface clock system capable of carrying out a plurality of timing reminding functions.
As shown in fig. 1, the diameter of the through round hole 11 is the same as the inner diameter of the drill rod 2, so that the smooth circulation pipeline of drilling flushing fluid is ensured; the outer diameter of the in-hole testing device 1 is the same as the outer diameter of the drilling tool 3, and is generally 110mm;
the bottom of the annular cavity 12 is provided with a charging power interface 121.
The top of the annular cavity 12 is provided with a data interface 122, a time setting button and a display screen 123.
The application method of the mechanical testing device applied to fourth-system stratum engineering investigation is characterized by comprising the following steps of:
step 1: assembling the in-hole testing device 1 between the drill rod 2 and the drilling tool 3;
step 2: according to the drilling depth, setting proper start test trigger time and completion test trigger time for the in-hole test equipment 1 through a trigger control system in the data collection, storage and trigger control system 13;
meanwhile, setting an interval of timing reminding time outside the hole, wherein the set test starting time outside the hole is 0.5-1 minute earlier than the start test triggering time set by the test equipment 1 in the hole, and the set test finishing time outside the hole is 0.5-1 minute later than the test triggering time set by the test equipment 1 in the hole;
step 3: the in-hole testing device 1, the drill rod 2 and the drilling tool 3 are integrally arranged in the drilling hole, so that the in-hole testing device 1 is in a reset state before starting to drill
Step 4: starting drilling;
step 5: when a drilling operator receives a test set outside the hole and starts reminding, stopping drilling, wherein the drill rod 2 and the drilling tool 3 are in a static state, and the drilling work is in a stagnation state, namely the drill rod 2 is in a forbidden state, and no up-down displacement and rotation are caused; when the in-hole test equipment 1 starts the test triggering time, the two micro feelers 141 of the test mechanical system 14 are inserted into the hole wall soil layer, the feeler resistance is transmitted into the storage system by using the mechanical sensor, and the data collection system collects detection data according to the extending length of the micro feelers 141, and each 1cm or 0.5cm of detection data is collected for 1 time;
the micro feeler 141 is fully extended, and the test is finished after the last data acquisition is carried out; after the test is completed, the two micro feelers 141 retract into the in-hole test equipment 1 to wait for the next triggering;
step 6: the drilling operator records the test number, time and hole depth on the drilling report;
step 7: when the drilling operator receives the reminding of the test ending time set outside the hole, the in-hole test equipment 1 finishes the test and data collection and resets;
step 8: repeating the step 4-7 to finish the drilling of the round; lifting the in-hole testing equipment 1, the drill rod 2 and the drilling tool 3 to the ground; unloading the in-hole test equipment 1, and transmitting test data to a USB flash disk, a mobile hard disk or a computer through a data interface 122; or after one or a plurality of drilling holes are completed, the test data are transmitted to a USB flash disk, a mobile hard disk or a computer through the data interface 122;
step 9: and forming complete test data according to the combination of the report recorded by the drilling operator and the test record of the in-hole test equipment 1, wherein the complete test data comprises a drilling hole number, a test serial number, a drilling depth, cone tip resistance of the micro penetration probe 141 and side wall friction resistance.
In the step 2, the time interval between the test starting time and the test finishing time which are set outside the hole is 3-5 minutes.
In step 5, when the tip resistance of the micro-probe 141 reaches 50N, test data is recorded, and the micro-probe 141 is retracted inside the in-hole test device 1.
In step 2, the time interval between the start test trigger time and the completion test trigger time of the in-hole test device 1 should be greater than the time consumed for drilling and less than the time consumed for drilling back, so as to ensure that the test part is located within the depth range of the stratum to be detected.
The application method of the mechanical testing device applied to fourth-system stratum engineering investigation comprises the following steps if a specific stratum needs to be tested:
step 1: the in-hole testing device 1, the drill rod 2 and the drilling tool 3 are integrally arranged in a drilling hole; according to the drilling depth, setting proper start test trigger time and completion test trigger time for the in-hole test equipment 1 through a trigger control system in the data collection, storage and trigger control system 13; meanwhile, setting an interval of timing reminding time outside the hole, wherein the set test starting time outside the hole is 0.5-1 minute earlier than the start test triggering time set by the test equipment 1 in the hole, and the set test finishing time outside the hole is 0.5-1 minute later than the test triggering time set by the test equipment 1 in the hole;
step 2: the in-hole testing equipment 1 is positioned in the stratum depth to be measured, and a ground clock system waits for timing reminding;
step 3: when the drilling operator receives a test start prompt set outside the hole, the drill rod 2 and the drilling tool 3 are in a static state, for example, the running vibration of the ground power system has an influence on the test and the test should be stopped, but in order to prevent the buried drilling, the slurry circulation system can normally run; when the in-hole test equipment 1 sets the starting test trigger time, the two micro feelers 141 of the test mechanical system 14 are inserted into the hole wall soil layer, the feeler resistance is transmitted into the storage system by using the mechanical sensor, and the data collection system collects detection data according to the extending length of the micro feelers 141, and each 1cm or 0.5cm of detection data is collected for 1 time;
the micro feeler 141 is fully extended, and the test is finished after the last data acquisition is carried out; after the test is completed, the two micro feelers 141 retract into the in-hole test equipment 1 to wait for the next triggering;
step 4: the drilling operator records the test number, time and hole depth on the drilling report;
step 5: when the drilling operator receives the reminding of the test ending time set outside the hole, the in-hole test equipment 1 finishes the test and data collection and resets;
step 6: repeating the steps 3-5, and lifting the in-hole testing equipment 1, the drill rod 2 and the drilling tool 3 to the ground; unloading the in-hole test equipment 1, and transmitting test data to a USB flash disk, a mobile hard disk or a computer through a data interface 122; transmitting the test data to a USB flash disk, a mobile hard disk or a computer through a data interface 122;
step 7: and forming complete test data according to the combination of the report recorded by the drilling operator and the test record of the in-hole test equipment 1, wherein the complete test data comprises a drilling hole number, a test serial number, a drilling depth, cone tip resistance of the micro penetration probe 141 and side wall friction resistance.
Other non-illustrated parts are known in the art.
Claims (9)
1. Be applied to mechanics testing arrangement of fourth system stratum engineering investigation, its characterized in that: comprises an in-hole testing device (1) and an out-hole device; the upper part of the in-hole testing device (1) is connected with the drill rod (2), the lower part of the in-hole testing device is connected with the drilling tool (3), the in-hole testing device (1) is cylindrical, and the in-hole testing device (1) comprises a through round hole (11) positioned at the center and an annular cavity (12) positioned between the outer shell of the in-hole testing device (1) and the through round hole (11);
the annular cavity (12) is internally provided with a data collection, storage and trigger control system (13) from top to bottom in sequence, a test mechanical system (14) connected with the data collection, storage and trigger control system (13), and a power supply (15) connected with the test mechanical system (14);
the test mechanical system (14) is two parallel, telescopic and reversely arranged micro feelers (141);
the data collection, storage and trigger control system (13) comprises a data collection system, a storage system and a trigger control system;
the out-hole equipment is an earth surface clock system capable of carrying out a plurality of timing reminding functions.
2. The mechanical testing device for fourth line earth engineering investigation of claim 1, wherein: the diameter of the through round hole (11) is the same as the inner diameter of the drill rod (2), and the outer diameter of the in-hole testing equipment (1) is the same as the outer diameter of the drilling tool (3).
3. The mechanical testing device for fourth line earth engineering investigation according to claim 2, wherein: the bottom of the annular cavity (12) is provided with a charging power interface (121).
4. A mechanical testing device for fourth line earth engineering investigation according to claim 3, characterized in that: the top of the annular cavity (12) is provided with a data interface (122), a time setting button and a display screen (123).
5. Use of a mechanical testing device for fourth line earth engineering investigation according to any of the claims 1-4, characterized in that it comprises the following steps:
step 1: assembling the in-hole test equipment (1) between the drill rod (2) and the drilling tool (3);
step 2: according to the drilling depth, setting proper starting test trigger time and completion test trigger time for the in-hole test equipment (1) through a trigger control system in the data collection, storage and trigger control system (13);
meanwhile, setting an interval of timing reminding time outside the hole, wherein the set test starting time outside the hole is 0.5-1 minute earlier than the start test triggering time set by the test equipment (1) in the hole, and the set test completion time outside the hole is 0.5-1 minute later than the test triggering time set by the test equipment (1) in the hole;
step 3: the in-hole testing device (1), the drill rod (2) and the drilling tool (3) are integrally arranged in a drilling hole;
step 4: starting drilling;
step 5: when a drilling operator receives a test start prompt set outside the hole, stopping drilling, wherein the drill rod (2) and the drilling tool (3) are in a static state; when the in-hole test equipment (1) starts to test and trigger for a set time, two micro feelings (141) of the test mechanical system (14) are inserted into a hole wall soil layer, the feelings resistance is transmitted into a storage system by using a mechanical sensor, and a data collection system collects detection data according to the extending length of the micro feelings (141) for 1 time every 1cm or 0.5 cm;
the micro feeler (141) is fully extended, and the test is finished after the last data acquisition; after the test is finished, the two micro feelers (141) retract into the in-hole test equipment (1) to wait for the next triggering;
step 6: the drilling operator records the test number, time and hole depth on the drilling report;
step 7: when the drilling operator receives the reminding of the set test ending time outside the hole, the test equipment (1) in the hole finishes the test and data collection and resets;
step 8: repeating the step 4-7 to finish the drilling of the round; lifting the in-hole test equipment (1), the drill rod (2) and the drilling tool (3) to the ground; unloading the in-hole test equipment (1), and transmitting test data to a USB flash disk, a mobile hard disk or a computer through a data interface (122); or after one or a plurality of drilling holes are completed, the test data are transmitted to a USB flash disk, a mobile hard disk or a computer through a data interface (122);
step 9: and forming complete test data according to the combination of the report recorded by the drilling operator and the test record of the in-hole test equipment (1), wherein the complete test data comprises a drilling hole number, a test serial number, a drilling depth, cone tip resistance of the micro feeler (141) and side wall friction resistance.
6. The method of claim 5, wherein in step 2, the time interval between the start time and the completion time of the test set outside the hole is 3-5 minutes.
7. The method of using the mechanical testing device for fourth-line formation engineering investigation according to claim 6, wherein in step 5, when the cone tip resistance of the micro-probe (141) reaches 50N, the test data is recorded, and the micro-probe (141) is retracted into the hole testing apparatus (1).
8. The method according to claim 7, wherein in step 2, the time interval between the start test trigger time and the completion test trigger time of the in-hole test device (1) is greater than the drill-down time and less than the drill-back time, so as to ensure that the test site is located within the depth range of the stratum to be detected.
9. The method of any one of claims 1-4, wherein if a specific formation is to be tested, the method comprises the steps of:
step 1: the in-hole testing device (1), the drill rod (2) and the drilling tool (3) are integrally arranged in a drilling hole; according to the drilling depth, setting proper starting test trigger time and completion test trigger time for the in-hole test equipment (1) through a trigger control system in the data collection, storage and trigger control system (13); meanwhile, setting an interval of timing reminding time outside the hole, wherein the set test starting time outside the hole is 0.5-1 minute earlier than the start test triggering time set by the test equipment (1) in the hole, and the set test completion time outside the hole is 0.5-1 minute later than the test triggering time set by the test equipment (1) in the hole;
step 2: the in-hole testing equipment (1) is positioned in the stratum depth to be measured, and a ground clock system is waited for timing reminding;
step 3: when a drilling operator receives a test start prompt set outside the hole, the drill rod (2) and the drilling tool (3) are in a static state; when the in-hole test equipment (1) sets the starting test trigger time, two micro feelings (141) of the test mechanical system (14) are inserted into a hole wall soil layer, the feelings resistance is transmitted into the storage system by using the mechanical sensor, and the data collection system collects detection data according to the extending length of the micro feelings (141) for 1 time every 1cm or 0.5 cm;
the micro feeler (141) is fully extended, and the test is finished after the last data acquisition; after the test is finished, the two micro feelers (141) retract into the in-hole test equipment (1) to wait for the next triggering;
step 4: the drilling operator records the test number, time and hole depth on the drilling report;
step 5: when the drilling operator receives the reminding of the set test ending time outside the hole, the test equipment (1) in the hole finishes the test and data collection and resets;
step 6: repeating the steps 3-5, and lifting the in-hole testing equipment (1), the drill rod (2) and the drilling tool (3) to the ground; unloading the in-hole test equipment (1), and transmitting test data to a USB flash disk, a mobile hard disk or a computer through a data interface (122); transmitting the test data to a USB flash disk, a mobile hard disk or a computer through a data interface (122);
step 7: and forming complete test data according to the combination of the report recorded by the drilling operator and the test record of the in-hole test equipment (1), wherein the complete test data comprises a drilling hole number, a test serial number, a drilling depth, cone tip resistance of the micro feeler (141) and side wall friction resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311084090.2A CN117211774A (en) | 2023-08-28 | 2023-08-28 | Mechanical testing device applied to fourth-line stratum engineering investigation and application method thereof |
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