CN114753337B - Static sounding test monitoring device and method suitable for rock-soil environment - Google Patents
Static sounding test monitoring device and method suitable for rock-soil environment Download PDFInfo
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- CN114753337B CN114753337B CN202210484267.7A CN202210484267A CN114753337B CN 114753337 B CN114753337 B CN 114753337B CN 202210484267 A CN202210484267 A CN 202210484267A CN 114753337 B CN114753337 B CN 114753337B
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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
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
Abstract
The invention discloses a static cone penetration test monitoring device and method suitable for a rock-soil environment, comprising a power assembly, wherein the power assembly comprises static cone penetration equipment, the static cone penetration equipment is communicated with an oil pressure part, the oil pressure part is electrically connected with an operating platform, and the oil pressure part has an oil pressure monitoring function; the static sounding assembly comprises a sounding rod, the sounding rod is detachably connected with static sounding penetrating equipment, the static sounding penetrating equipment has the function of recording penetrating depth of the sounding rod, a probe is mounted on the sounding rod and communicated with a cable, an inclination sensor is arranged in the sounding rod and communicated with the cable, and the inclination sensor is located at one end, close to the probe, of the sounding rod. The device measures whether the probe rod is inclined in the penetrating process through the inclination angle sensor, the oil pressure sensor is used for recording the oil pressure in the penetrating process, the authenticity of the data of the mechanical depth recorder is verified, and the condition of data fake is reduced.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering investigation equipment, in particular to a static sounding test monitoring device and method suitable for a geotechnical environment.
Background
Static sounding is a survey means, and is also an in-situ test method for dividing soil layers, judging soil liquefaction and certain basic physical and mechanical properties by measuring penetration resistance, side resistance, pore water pressure and the like.
Nowadays, more parameters can be obtained through a multifunctional probe, the application range is wider and wider, the development is quicker, but most of static sounding depth is obtained by using a stay wire encoder and a depth encoder before the static sounding monitoring is almost stopped, and in recent years, new invention patents are also available for measuring the depth, but common diseases exist, namely errors (data falsification) caused by human factors cannot be eliminated, and on-site supervision is needed, but labor force is increased; and because the modern engineering has high requirements on the static penetration depth, the probe is easy to incline in the penetration engineering, so that the measured data deviation is large, the detection efficiency is low, and when the penetration process inclines, the probe and the probe rod are easy to crack to damage equipment, and the probe is manufactured again, so that the process is complex and the cost is high. Therefore, the problems of real-time monitoring of the depth fidelity of static sounding and simple and convenient acquisition of verticality are required to be solved.
Disclosure of Invention
The invention aims to provide a static cone penetration test monitoring device and method suitable for a geotechnical environment, so as to solve the problems of the prior art, monitor the accuracy of depth data recorded by static cone penetration, and reduce the situation that a probe and a probe rod are broken due to inclination.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a static sounding test monitoring device and method adapting to a rock-soil environment, which are characterized by comprising the following steps:
the power assembly comprises static penetration equipment, the static penetration equipment is communicated with an oil pressure part, the oil pressure part is electrically connected with an operating table, and the oil pressure part has an oil pressure monitoring function;
the static sounding assembly comprises a sounding rod, the sounding rod is detachably connected with static sounding penetrating equipment, the static sounding penetrating equipment records the function of penetrating depth of the sounding rod, a probe is mounted on the sounding rod and is communicated with a cable, an inclination sensor is arranged in the sounding rod and is communicated with the cable, and the inclination sensor is located on the sounding rod and is close to one end of the probe.
Preferably, the oil pressure part comprises an oil pipe, the oil pipe is communicated with the static penetration equipment, and one end, far away from the static penetration equipment, of the oil pipe is communicated with an oil press.
Preferably, the oil pipe is provided with a three-way connecting pipe, any port of the three-way connecting pipe is provided with an oil pressure sensor, and the oil pressure sensor is electrically connected with a data acquisition box.
Preferably, the oil pressure sensor is fixedly connected to the base fixing frame.
Preferably, the static penetration equipment is provided with a mechanical depth recorder, the probe rod is abutted to the mechanical depth recorder, the probe rod is fixedly connected with a connecting pipe, one end of the connecting pipe, which is far away from the probe rod, is fixedly connected with the probe, and the inclination sensor is positioned in the connecting pipe.
Preferably, the probe rod is fixedly connected with the connecting pipe through a connector, and the connecting pipe is fixedly connected with the probe through threads.
Preferably, the sensor module is fixedly connected with the connecting pipe, a clamping groove is formed in the sensor module, the inclination sensor is fixedly connected with the clamping groove, the clamping groove is fixedly connected with the sealing cover, the sensor module is provided with a first through hole, and the cable penetrates through the first through hole.
Preferably, the outer edge of the sensor module is provided with threads, the inner edge of the connecting pipe is provided with threads, and the sensor module is fixedly connected in the connecting pipe through threads.
Preferably, the inner edge of the connecting pipe is in threaded connection with a fixed disc, the fixed disc is located at the top of the sensor module, the fixed disc is in butt joint with the sensor module, a second through hole is formed in the fixed disc, and the first through hole and the second through hole are correspondingly formed.
The application method of the static cone penetration test monitoring device suitable for the rock-soil environment comprises the following steps:
step one, installing the static penetration equipment on a test site, and communicating the static penetration equipment with the oil pressure part;
step two, connecting the cable with the inclination sensor, installing the inclination sensor in the probe rod, connecting the probe with the probe rod, and installing the probe rod in the static penetration equipment;
starting the oil pressure part, enabling the static penetration equipment to start working, reading data of the inclination sensor through equipment on the ground, and recording penetration depth of the static penetration equipment and oil pressure data of the oil pressure part;
and step four, when the penetration depth reaches the requirement, the probe rod is pulled out.
The invention discloses the following technical effects: the static sounding penetrating equipment is used for providing power for the probe rod to be pressed into the soil, the oil pressure part can record the oil pressure of the probe rod in the process of pressing the probe rod into the soil, the static sounding penetrating equipment can record the depth of the probe rod into the soil, the inclination angle of the probe can be monitored in real time by the inclination angle sensor, the data are transmitted to the equipment on the ground through the cable, the probe rod and the probe can be prevented from being broken due to inclination before penetrating, the probe rod for static sounding penetrates into the soil at constant speed through the oil pressure, the oil pressure required by penetrating into different soil layers is different, the oil pressure of the oil pressure part is different according to different soil layer hardness degrees, the oil pressure part records different data, and the authenticity of the data recorded by the static sounding penetrating equipment can be verified through the recorded oil pressure data. The device measures whether the probe rod is inclined in the penetrating process through the inclination sensor, records oil pressure data in the penetrating process by the oil pressure part, verifies the authenticity of the depth data of the probe rod recorded by the static penetration equipment, and reduces the condition of data fake.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a static cone penetration test monitoring device and method adapted to a geotechnical environment;
FIG. 2 is a schematic view of a connecting pipe structure according to the present invention;
FIG. 3 is a schematic diagram of a sensor module according to the present invention;
FIG. 4 is a schematic view of the oil pressure part structure of the present invention;
FIG. 5 shows oil pressure data for different soil layers according to the present invention;
FIG. 6 is a graph showing probe tilt angle data for different depths of the present invention;
wherein, 1, static penetration equipment; 2. a hydraulic unit; 3. an operation table; 4. an oil pressure sensor; 5. a mechanical depth recorder; 6. a probe rod; 7. a probe; 8. an inclination sensor; 9. a cable; 10. an oil pipe; 11. a three-way connecting pipe; 12. a data acquisition box; 13. a base fixing frame; 14. a connecting pipe; 15. a connector; 16. a sensor module; 17. a clamping groove; 18. sealing cover; 19. a first through hole; 20. and fixing the disc.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-4, the invention provides a static sounding test monitoring device adapting to a rock-soil environment, comprising:
the power assembly comprises static penetration equipment 1, the static penetration equipment 1 is communicated with an oil pressure part 2, the oil pressure part 2 is electrically connected with an operating platform 3, and the oil pressure part 2 has an oil pressure monitoring function.
The static sounding assembly comprises a sounding rod 6, the sounding rod 6 is detachably connected with the static sounding penetrating equipment 1, the static sounding penetrating equipment 1 has the function of recording the penetrating depth of the sounding rod 6, a probe 7 is installed on the sounding rod 6, the probe 7 is communicated with a cable 9, an inclination sensor 8 is arranged in the sounding rod 6 and is communicated with the cable 9, and the inclination sensor 8 is located at one end, close to the probe 7, of the sounding rod 6.
The oil pressure portion 2 provides power for the static sounding penetrating equipment 1, the oil pressure portion 2 is operated through the operation panel 3, the oil pressure portion 2 has the function that can real-time supervision oil pressure to can record oil pressure data, install probe 7 on the probe rod 6, the static sounding penetrating equipment 1 is pressed the probe rod 6 into soil, the probe 7 bottom surface is conical, be favorable to probe 7 to get into soil, the penetration depth of probe rod 6 can be recorded to the static sounding penetrating equipment 1, according to the principle that probe rod 6 oil pressure at different depths is different, the authenticity of probe rod 6 depth data recorded by the static sounding penetrating equipment 1 is verified to the oil pressure data that oil pressure portion 2 recorded. The static sounding has the defect that the detection depth of workers is false in actual work, and does not truly punch, because the sounding rod 6 of the static sounding penetrates into soil at constant speed through oil pressure, the oil pressure required for penetrating into different soil layers is different, the oil pressure of the oil pressure part 2 is different according to the different soil layer hardness degree, the oil pressure of the oil pressure part 2 can record different data, the authenticity of the mechanical depth recorder 5 can be monitored according to the working oil pressure of the static sounding penetrating equipment 1, the output pressure of the oil pressure of the different soil layers is different, as shown in reference to fig. 5, I is the miscellaneous fill, II is the sticky silt, III is the silt-in-paper clay, IV is the powdery clay, V is the clay, VI is the fine sand and the middle fine sand layer.
The inclination angle sensor 8 can monitor the inclination angle of the probe in real time, so that the probe 7 for static sounding can keep a vertical downward angle before penetrating, the end resistance and the side friction resistance measured by the probe 7 have practical reference significance, and errors are reduced. The inclination sensor 8 is connected with equipment on the ground through a cable 9, and the inclination angle of the probe 7 can be output to the equipment on the ground (not shown in the figure) in real time, so that the purpose of monitoring verticality in real time is achieved, and the skewness between a touch hole and the vertical line can be set, and according to the standard of geotechnical engineering investigation Specification GB50021-2001 (2009 edition): the deflection of the first 5 probe rods per meter is smaller than 0.5mm, the rest is smaller than 1mm, an early warning value is set, once the early warning value is exceeded, ground equipment (not shown in the figure) can give an alarm, and static sounding work can be stopped immediately. The inclination sensor 8 is a professional attitude angle measurement module, and by reading the original data such as the triaxial acceleration and the triaxial angular velocity of the sensor and applying an attitude dynamics core algorithm and combining a high dynamic Kalman filtering fusion algorithm, the real-time stable triaxial attitude angle at the settlement position can accurately output angles in environments containing noise, vibration and motion, and errors caused by interference are greatly eliminated, so that the sensor can be applied to various static detection environments, the output data is directly connected to ground equipment (not shown in the figure) through a cable 9, the ground equipment (not shown in the figure) can directly display angles, alarm values can be set, and when the probe inclination exceeds the angle values, data acquisition can be stopped immediately, and alarm sounds are emitted. The inclination angle sensor 8 monitors the angle of the probe 7 in real time in the penetrating process, can set an alarm angle to be 8 degrees, and prevents the joint between the probe 7 and the probe rod 6 from being broken due to overlarge torque caused by overlarge deviation angle of the probe 7 in the penetrating process; as the depth increases, the inclination angle of the probe 7 is as shown with reference to fig. 6.
In a further optimization scheme, the oil pressure part 2 comprises an oil pipe 10, the oil pipe 10 is communicated with the static penetration equipment 1, and an oil press (not shown in the figure) is communicated with one end, away from the static penetration equipment 1, of the oil pipe 10; an oil press (not shown in the figure) supplies oil pressure to the static penetration apparatus 1, and the oil flows into the static penetration apparatus 1 through the oil pipe 10.
In a further optimization scheme, a three-way connecting pipe 11 is arranged on the oil pipe 10, an oil pressure sensor 4 is arranged at any port of the three-way connecting pipe 11, and the oil pressure sensor 4 is electrically connected with a data acquisition box 12; the oil pressure sensor 4 is used for measuring oil pressure data in the process that the probe rod 6 penetrates into soil, the oil pressure sensor 4 is connected to the oil pipe 10 through the three-way connecting pipe 11, the oil pressure in the oil pipe 10 can be accurately measured, and the data acquisition box 12 is used for recording and collecting the oil pressure data.
Further optimizing scheme, oil pressure sensor 4 fixed connection improves the security of oil pressure sensor 4 on base mount 13, prevents oil pressure sensor 4 because of other object inflation damage.
In a further optimized scheme, the static penetration equipment 1 is provided with a mechanical depth recorder 5, the probe rod 6 is abutted against the mechanical depth recorder 5, the probe rod 6 is fixedly connected with a connecting pipe 14, one end, away from the probe rod 6, of the connecting pipe 14 is fixedly connected with the probe 7, and the inclination sensor 8 is positioned in the connecting pipe 14; the penetration depth of the probe rod 6 is recorded by using the mechanical depth recorder 5, the inclination sensor 8 is installed in the connecting pipe 14, the installation and the disassembly of the inclination sensor 8 are convenient, the connecting pipe 14 contains waterproof materials, and the probe 7 and the probe rod 6 with different sizes can be applied to various static sounding environments and static sounding equipment only by changing the external size and the types of upper and lower end threads of the connecting pipe 14 under different environments, and the probe rod is convenient to disassemble, simple to manufacture and low in cost. The mechanical depth recorder 5 is provided with a switch, the mechanical depth recorder 5 is switched on or off when in use, and the switch is switched on or off once for 10cm; finally, according to the relation between the output power and penetration depth of the oil pressure, the purpose of monitoring the depth fidelity in real time is achieved.
In a further optimized scheme, the probe rod 6 is fixedly connected with the connecting pipe 14 through the connector 15, and the connecting pipe 14 is fixedly connected with the probe 7 through threads; the connector 15 can improve the firmness of the connection of the probe rod 6 and the connecting pipe 14, and the connecting pipe 14 and the probe 7 are connected through threads so as to be convenient to install.
Further optimizing scheme, fixedly connected with sensor module 16 in the connecting pipe 14, the draw-in groove 17 has been seted up on the sensor module 16, inclination sensor 8 fixed connection is in draw-in groove 17, fixedly connected with sealed lid 18 on the draw-in groove 17, first through-hole 19 has been seted up to the sensor module 16, cable 9 wears to establish in first through-hole 19, prevent that cable 9 from dragging the horizontal position that influences inclination sensor 8, sensor module 16 is located draw-in groove 17, and use sealed lid 18 to seal, prevent that influence such as water, dust from damaging inclination sensor 8.
In a further optimized scheme, the outer edge of the sensor module 16 is provided with threads, the inner edge of the connecting pipe 14 is provided with threads, and the sensor module 16 is fixedly connected in the connecting pipe 14 through the threads, so that the sensor module 16 is convenient to install and detach.
In a further optimized scheme, the inner edge of the connecting pipe 14 is connected with a fixed disc 20 in a threaded manner, the fixed disc 20 is positioned at the top of the sensor module 16, the fixed disc 20 is abutted against the sensor module 16, a second through hole (not shown in the figure) is formed in the fixed disc 20, and the first through hole 19 and the second through hole (not shown in the figure) are correspondingly arranged; the fixed disk 20 can cover the sensor module 16, reducing the risk of damaging the sensor module 16, and the cable 9 passes through a second through hole (not shown).
The application method of the static sounding test monitoring device adapting to the rock-soil environment comprises the following steps:
firstly, a flatter test site is selected, static penetration equipment 1 is installed on the test site, the static penetration equipment 1 is communicated with an oil pressure part 2, the tightness of a connecting pipeline is tested through an operating platform 3, and leakage caused by overlarge oil pressure is prevented.
Step two, connecting the cable 9 with the inclination sensor 8, penetrating the cable 9 into the probe rod 6, installing the inclination sensor 8 into the probe rod 6, connecting the probe 7 with the probe rod 6, installing the probe 7 and the probe rod 6 which are connected together on the static sounding penetration equipment 1, and testing whether the mechanical depth recorder 5 can work normally after the installation is completed.
Step three, the oil pressure part 2 is started through the operation table 3, so that the static penetration equipment 1 starts to work, the static penetration equipment 1 presses the probe rod 6 into the soil, the data of the inclination sensor 8 are read through equipment (not shown in the figure) on the ground, the probe rod 6 is prevented from inclining, the data of the mechanical depth recorder 5 and the oil pressure sensor 4 are recorded, the data of the oil pressure sensor 4 can verify the authenticity of the data recorded by the mechanical depth recorder 5, the probe 7 can measure the end resistance and the side friction resistance, and the data are transmitted to equipment (not shown in the figure) on the ground through the cable 9.
And step four, after the penetration depth reaches the requirement, the probe rod 6 is pulled out in time, and after the probe rod 6 is pulled out, related equipment is cleaned and collected, so that the equipment is ready for the next sounding.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (5)
1. The utility model provides a static sounding test monitoring devices of adaptation ground environment which characterized in that includes:
the power assembly comprises static penetration equipment (1), the static penetration equipment (1) is communicated with an oil pressure part (2), the oil pressure part (2) is electrically connected with an operating table (3), and the oil pressure part (2) has an oil pressure monitoring function;
the static sounding assembly comprises a sounding rod (6), the sounding rod (6) is detachably connected with the static sounding penetrating equipment (1), the static sounding penetrating equipment (1) has the function of recording the penetrating depth of the sounding rod (6), a probe (7) is mounted on the sounding rod (6), the probe (7) is communicated with a cable (9), an inclination sensor (8) is arranged in the sounding rod (6), the inclination sensor (8) is communicated with the cable (9), and the inclination sensor (8) is located at one end, close to the probe (7), of the sounding rod (6);
the oil pressure part (2) comprises an oil pipe (10), the oil pipe (10) is communicated with the static penetration equipment (1), and one end, far away from the static penetration equipment (1), of the oil pipe (10) is communicated with an oil press;
the oil pipe (10) is provided with a three-way connecting pipe (11), any port of the three-way connecting pipe (11) is provided with an oil pressure sensor (4), and the oil pressure sensor (4) is electrically connected with a data acquisition box (12);
the static penetration equipment (1) is provided with a mechanical depth recorder (5), the probe rod (6) is in butt joint with the mechanical depth recorder (5), the probe rod (6) is fixedly connected with a connecting pipe (14), one end, far away from the probe rod (6), of the connecting pipe (14) is fixedly connected with the probe (7), and the inclination sensor (8) is positioned in the connecting pipe (14);
the probe rod (6) is fixedly connected with the connecting pipe (14) through a connector (15), and the connecting pipe (14) is fixedly connected with the probe (7) through threads;
the intelligent sensor is characterized in that a sensor module (16) is fixedly connected in the connecting pipe (14), a clamping groove (17) is formed in the sensor module (16), the inclination sensor (8) is fixedly connected in the clamping groove (17), a sealing cover (18) is fixedly connected to the clamping groove (17), a first through hole (19) is formed in the sensor module (16), and the cable (9) is arranged in the first through hole (19) in a penetrating mode.
2. The device for monitoring the static cone penetration test adapted to the rock and soil environment according to claim 1, wherein the device comprises: the oil pressure sensor (4) is fixedly connected to the base fixing frame (13).
3. The device for monitoring the static cone penetration test adapted to the rock and soil environment according to claim 1, wherein the device comprises: the outer edge of the sensor module (16) is provided with threads, the inner edge of the connecting pipe (14) is provided with threads, and the sensor module (16) is fixedly connected in the connecting pipe (14) through threads.
4. The device for monitoring the static cone penetration test adapted to the rock and soil environment according to claim 3, wherein the device comprises: the inner edge of the connecting pipe (14) is connected with a fixed disc (20) in a threaded mode, the fixed disc (20) is located at the top of the sensor module (16), the fixed disc (20) is in butt joint with the sensor module (16), a second through hole is formed in the fixed disc (20), and the first through hole (19) and the second through hole are correspondingly formed.
5. The application method of the static sounding test monitoring device adapting to the rock-soil environment is completed by adopting the static sounding test monitoring device adapting to the rock-soil environment according to claim 1, and is characterized by comprising the following steps:
firstly, installing the static penetration equipment (1) on a test site, and communicating the static penetration equipment (1) with the oil pressure part (2);
step two, connecting the cable (9) with the inclination sensor (8), installing the inclination sensor (8) in the probe rod (6), connecting the probe (7) with the probe rod (6), and installing the probe rod (6) in the static penetration equipment (1);
starting the oil pressure part (2) to enable the static penetration equipment (1) to start working, reading data of the inclination sensor (8) through ground equipment, and recording penetration depth of the static penetration equipment (1) and oil pressure data of the oil pressure part (2);
and step four, when the penetration depth reaches the requirement, the probe rod (6) is pulled out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210484267.7A CN114753337B (en) | 2022-05-06 | 2022-05-06 | Static sounding test monitoring device and method suitable for rock-soil environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210484267.7A CN114753337B (en) | 2022-05-06 | 2022-05-06 | Static sounding test monitoring device and method suitable for rock-soil environment |
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| CN114753337A CN114753337A (en) | 2022-07-15 |
| CN114753337B true CN114753337B (en) | 2023-10-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031771A (en) * | 2009-09-25 | 2011-04-27 | 铁道第三勘察设计院集团有限公司 | Deep static cone penetration test method for geotechnical engineering |
| CN111139812A (en) * | 2019-12-30 | 2020-05-12 | 山东建大工程鉴定加固研究院 | Static sounding device and method for geotechnical geological exploration |
| CN113026708A (en) * | 2021-03-25 | 2021-06-25 | 绍兴文理学院 | Novel static sounding probe |
| CN114232581A (en) * | 2022-01-11 | 2022-03-25 | 烟台三维岩土工程技术有限公司 | Seabed type chain clamping driving continuous penetration static sounding device |
-
2022
- 2022-05-06 CN CN202210484267.7A patent/CN114753337B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031771A (en) * | 2009-09-25 | 2011-04-27 | 铁道第三勘察设计院集团有限公司 | Deep static cone penetration test method for geotechnical engineering |
| CN111139812A (en) * | 2019-12-30 | 2020-05-12 | 山东建大工程鉴定加固研究院 | Static sounding device and method for geotechnical geological exploration |
| CN113026708A (en) * | 2021-03-25 | 2021-06-25 | 绍兴文理学院 | Novel static sounding probe |
| CN114232581A (en) * | 2022-01-11 | 2022-03-25 | 烟台三维岩土工程技术有限公司 | Seabed type chain clamping driving continuous penetration static sounding device |
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| CN114753337A (en) | 2022-07-15 |
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