Static sounding probe

Abstract

The utility model discloses a static sounding probe. The static sounding probe comprises a probe main body, the lower end of the main body is provided with a conical head, the lower end of the conical head is provided with a conical tip, the main body is provided with a sensor module, the upper end of the main body is provided with a connector for connecting a probe rod, and the upper end of the main body is provided with a wire harness for connecting monitoring equipment; the connecting structure is used for combining the conical head and the main body; the connecting structure comprises a connecting screw rod and a connecting screw hole, the connecting screw rod is located at the lower end of the body, the connecting screw hole is located in the top of the conical head, and the connecting screw rod is matched with the connecting screw hole. The device is simple in structure and convenient to use, through the design of the detachable conical head, conical tips of different shapes and materials can be replaced according to different exploration requirements so as to adapt to different soil types and exploration depths, on-site rapid replacement is facilitated, the exploration efficiency is improved, meanwhile, only the conical head needs to be replaced when the conical head is abraded and damaged, and the cost is reduced. And the exploration cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of static cone penetration probe equipment, and specifically relates to a static cone penetration probe. Background Technique

[0002] The static cone penetration test is to press a conical probe into the soil at a constant speed under a static pressure, measure its penetration resistance (including tip resistance and sidewall friction resistance or friction ratio), and divide the soil layers according to the magnitude of the resistance it receives to determine the engineering properties of the soil. The static cone penetration test can determine the spatial distribution and engineering characteristics of various soil bodies, and the field operation is simple, convenient, and the test time is short, so it is widely used in engineering geological exploration. By measuring the penetration resistance of the soil through the measuring system, some basic physical and mechanical properties of the soil can be determined, such as the deformation modulus of the soil, the allowable bearing capacity of the soil, etc. There are three types of static cone penetration pressurization methods: mechanical, hydraulic, and manual. The static cone penetration test is carried out on site. By performing regression analysis on the specific penetration resistance (Ps) obtained from the static cone penetration and related indexes of the load test and geotechnical test, an empirical formula applicable to a certain area or a certain soil property can be obtained, and the natural foundation bearing capacity of the soil can be determined through the calculated indexes obtained from the static cone penetration.

[0003] After retrieval, the Chinese patent application number is: CN202110318563.5, which discloses a new type of static cone penetration probe, including a probe body, a horizontal plate, and a fixed shaft. Among them, the probe body includes a connecting head, a sidewall friction cylinder, and a conical tip connected in sequence from top to bottom. A laser sensor, an inclination sensor, a side resistance sensor, and an end resistance sensor are arranged in the probe body in sequence from top to bottom. The laser sensor is fixed at one end of the sidewall friction cylinder close to the connecting head. A groove is provided at the center position of the upper end surface of the conical tip for accommodating the end resistance sensor; the inclination sensor is fixed on the horizontal plate; the upper end of the fixed shaft abuts against the horizontal plate, and the lower end of the fixed shaft abuts against the conical tip and the end resistance sensor at the same time. A support pad is installed on the inner wall of the sidewall friction cylinder, and the side resistance sensor is installed in the gap between the fixed shaft and the sidewall friction cylinder. Compared with the prior art, this invention can monitor the inclination degree and the penetration depth of the probe into the soil in real time, and has the characteristics of high safety.

[0004] The above technical solutions and traditional probes are often of an integrated structure. When it is necessary to use them according to exploration requirements, different probes need to be replaced. At this time, the entire probe needs to be replaced, and the process is relatively cumbersome, and the exploration cost is increased. At the same time, when the conical tip is worn and damaged when it penetrates deep into the ground, the entire probe needs to be replaced. Therefore, we need to propose a static cone penetration probe. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a static cone penetration test probe. The device has a simple structure and is convenient to use. Through the detachable cone head design, different cone tips with different shapes and materials can be replaced according to different exploration requirements to adapt to different soil types and exploration depths, facilitating quick replacement on-site and improving exploration efficiency. At the same time, when the cone head is worn or damaged, only the cone head needs to be replaced, saving exploration costs, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] A static cone penetration test probe, comprising:

[0008] The main body of the probe;

[0009] A cone head is provided at the lower end of the main body, a cone tip is provided at the lower end of the cone head, a sensor module is installed on the main body, a connector for connecting a drill rod is provided at the upper end of the main body, and a wire harness for connecting monitoring equipment is provided at the upper end of the main body;

[0010] It further includes a connection structure for the combination between the cone head and the main body;

[0011] The connection structure includes a connection screw and a connection screw hole. The connection screw is located at the lower end of the main body, the connection screw hole is located at the top of the cone head, and the connection screw and the connection screw hole are adapted to each other.

[0012] Preferably, the sensor module inside the main body includes a cone tip resistance sensor for measuring the contact pressure between the cone tip and the soil, a sidewall friction sensor for measuring the friction between the side of the probe and the soil, and a pore water pressure sensor for measuring the pore water pressure.

[0013] Preferably, the inside of the cone head is hollow, and a temperature sensor is installed inside the cone head for monitoring the temperature of the cone head.

[0014] Preferably, a pressure sensor is installed near the cone tip inside the cone head to directly measure the resistance received by the cone tip during the process of being pressed into the soil.

[0015] Preferably, a lower groove is opened at the top of the cone head, an upper groove is opened at the bottom of the main body, and wire holes for wires to pass through are opened at the inner bottoms of the upper groove and the lower groove.

[0016] Preferably, gaskets are placed inside both the upper groove and the lower groove, and a compression spring is placed between the two groups of gaskets.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. The utility model is provided with a connector and a wire harness at the upper end of the main body of the probe, a connecting screw at the lower end, and a connecting screw hole at the top of the conical head. The device has a simple structure and is easy to use. Through the detachable conical head design, conical tips of different shapes and materials can be replaced according to different exploration requirements to adapt to different soil types and exploration depths, facilitating quick replacement on-site and improving exploration efficiency. At the same time, when the conical head is worn or damaged, only the conical head needs to be replaced, saving exploration costs.

[0019] 2. A compression spring and a washer are arranged between the conical head and the main body. On the one hand, under the action of the compression spring, the connection between the connecting screw and the connecting screw hole is made tighter, and the problem of disengagement is not likely to occur. On the other hand, the compression spring and the washer can have a certain buffering effect, which can reduce the impact of vibration and shock on the conical head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the utility model;

[0021] Figure 2 is a schematic structural diagram of the conical head of the utility model;

[0022] Figure 3 is a schematic structural diagram of the connecting screw hole of the utility model;

[0023] Figure 4 is a schematic structural diagram of the upper groove of the utility model;

[0024] Figure 5 is a schematic structural diagram of the conical tip of the utility model.

[0025] In the figure: 1. Main body; 2. Connector; 3. Wire harness; 4. Conical head; 5. Connecting screw; 6. Connecting screw hole; 7. Conical tip; 8. Compression spring; 9. Washer; 10. Lower groove; 11. Upper groove; 12. Temperature sensor; 13. Pressure sensor; 14. Wire hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0028] A static cone penetration test probe, comprising:

[0029] The main body 1 of the probe; a tapered head 4 is provided at the lower end of the main body 1, a tapered tip 7 is provided at the lower end of the tapered head 4, a sensor module is installed on the main body 1, a connector 2 for connecting a probe rod is provided at the upper end of the main body 1, and a wire harness 3 for connecting a monitoring device is provided at the upper end of the main body 1; the sensor module inside the main body 1 includes a tapered tip 7 resistance sensor for measuring the contact pressure between the tapered tip 7 and the soil, a sidewall friction sensor for measuring the friction between the side of the probe and the soil, and a pore pressure sensor for measuring the pore water pressure.

[0030] It also includes a connection structure for the combination between the tapered head 4 and the main body 1; the connection structure includes a connection screw 5 and a connection screw hole 6, the connection screw 5 is located at the lower end of the main body 1, the connection screw hole 6 is located at the top of the tapered head, and the connection screw 5 and the connection screw hole 6 are adapted to each other.

[0031] By providing a connector 2 and a wire harness 3 at the upper end of the main body 1 of the probe, a connection screw 5 at the lower end, and a connection screw hole 6 at the top of the tapered head 4, during use, the wires of the sensors inside the tapered head 4 and the wires of the main body 1 are connected, and then they are combined through the connection screw 5 and the connection screw hole 6. After the combination is completed, they are combined with the probe rod through the connector 2 and then used in cooperation with the exploration equipment. The structure of this device is simple and easy to use. Through the detachable design of the tapered head 4, tapered tips 7 of different shapes and materials can be replaced according to different exploration requirements to adapt to different soil types and exploration depths, facilitating quick replacement on-site and improving exploration efficiency. At the same time, when the tapered head 4 is worn or damaged, only the tapered head 4 needs to be replaced, saving exploration costs.

[0032] Furthermore, please refer to Figure 5 :

[0033] The inside of the tapered head 4 is hollow, and a temperature sensor 12 is installed inside the tapered head 4. The temperature sensor 12 is used to monitor the temperature of the tapered head 4. A pressure sensor 13 is installed near the tapered tip 7 inside the tapered head 4 to directly measure the resistance received by the tapered tip 7 during the process of being pressed into the soil.

[0034] Through such a design, the working state and environmental conditions of the probe can be monitored in real time, providing data support for timely adjustment of operation strategies. At the same time, when used in cooperation with the exploration equipment, the exploration equipment can automatically adjust the pressing speed and force of the probe according to the data fed back by the sensors, avoiding damage to the probe due to excessive pressure in hard soil layers or loss of stability due to excessive penetration in soft soil layers;

[0035] Among them, the exploration equipment is built-in with an intelligent control system dominated by a processor. An overload protection mechanism is set through the exploration equipment. When the tapered head 4 receives a pressure exceeding its bearing capacity, the power source is automatically cut off or the pressing force is adjusted to prevent damage due to overload;

[0036] Set a temperature threshold through the exploration equipment. The temperature sensor 12 monitors the working temperature of the cone head 4. When the temperature exceeds the set threshold, an alarm signal is sent to prevent the material performance from deteriorating or being damaged due to high temperature.

[0037] For further details, please refer to Figures 2-4 :

[0038] A lower groove 10 is provided at the top of the cone head 4, and an upper groove 11 is provided at the bottom of the main body 1. Wire holes 14 for wires to pass through are provided at the inner bottoms of the upper groove 11 and the lower groove 10. Washers 9 are placed inside both the upper groove 11 and the lower groove 10, and a compression spring 8 is placed between the two groups of washers 9.

[0039] A compression spring 8 and washers 9 are provided between the cone head 4 and the main body 1. On the one hand, under the action of the compression spring 8, the connection between the connecting screw 5 and the connecting screw hole 6 is made tighter and less likely to become detached; on the other hand, the compression spring 8 cooperating with the washers 9 can have a certain buffering effect, which can reduce the impact of vibration and shock on the cone head 4.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A static cone penetration test probe, characterized in that, Comprising: The main body (1) of the probe; A conical head (4) is provided at the lower end of the main body (1), a conical tip (7) is provided at the lower end of the conical head (4), a sensor module is installed on the main body (1), a connector (2) for connecting a probe rod is provided at the upper end of the main body (1), and a wire harness (3) for connecting a monitoring device is provided at the upper end of the main body (1); It further includes a connection structure for the combination between the conical head (4) and the main body (1); The connection structure includes a connection screw (5) and a connection screw hole (6). The connection screw (5) is located at the lower end of the main body (1), the connection screw hole (6) is located at the top of the conical head, and the connection screw (5) and the connection screw hole (6) are adapted to each other.

2. The static cone penetration probe according to claim 1, wherein: The sensor module inside the main body (1) includes a conical tip (7) resistance sensor for measuring the contact pressure between the conical tip (7) and the soil, a sidewall friction sensor for measuring the friction between the side of the probe and the soil, and a pore pressure sensor for measuring the pore water pressure.

3. A static cone penetration test probe according to claim 1, characterized in that: The inside of the conical head (4) is hollow, and a temperature sensor (12) is installed inside the conical head (4) for monitoring the temperature of the conical head (4).

4. A static cone penetration test probe according to claim 3, characterized in that: A pressure sensor (13) is installed near the conical tip (7) inside the conical head (4) to directly measure the resistance received by the conical tip (7) during the process of being pressed into the soil.

5. A static cone penetration test probe according to claim 1, characterized in that: A lower groove (10) is formed at the top of the conical head (4), an upper groove (11) is formed at the bottom of the main body (1), and wire holes (14) for the passage of wires are formed at the inner bottoms of the upper groove (11) and the lower groove (10).

6. The static cone penetration test probe according to claim 5, characterized in that: Gaskets (9) are placed inside both the upper groove (11) and the lower groove (10), and a compression spring (8) is placed between the two groups of gaskets (9).

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