Shield geological probe
By designing a shield geological detection head that combines a conical body with a spiral guide channel, the problems of limited detection coverage and signal penetration capability of traditional detection heads under complex geological conditions have been solved, achieving efficient detection in complex geological environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国水利水电第七工程局有限公司
- Filing Date
- 2025-06-17
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional shield tunneling geological detection heads are difficult to adapt to complex and ever-changing geological conditions, have a small detection coverage area and limited signal penetration ability, which affects construction efficiency and safety.
A shield tunneling geological detection head was designed, which combines a conical body with a spiral guide channel. The inner cavity is equipped with pores and detection modules. It is customized by 3D printing technology. The conical body reduces path deviation, the spiral guide channel reduces siltation and blockage, and the pores enhance signal coverage and penetration.
Maintaining the tunneling direction in complex geological environments reduces siltation and blockage, enhances the coverage and penetration of detection signals, adapts to complex geological conditions, and improves construction efficiency and safety.
Smart Images
Figure CN224149643U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of geological exploration technology, and more specifically, relates to a shield tunneling geological exploration head. Background Technology
[0002] As a core technology in modern tunnel construction, the shield tunneling method's construction safety and efficiency are highly dependent on the accurate detection of geological conditions ahead. Therefore, geological detection heads are often installed in shield tunneling equipment to detect and obtain geological information ahead.
[0003] In related technologies, due to the complex geological environment, such as uneven hardness and fault zones, traditional probes are often unable to adapt to these complex and variable geological conditions. At the same time, the detection coverage is small and the signal penetration capability is relatively limited, which affects the detection efficiency and urgently needs to be improved. Utility Model Content
[0004] In view of the deficiencies or improvement needs of the existing technology, this application provides a shield tunneling geological detection head that can adapt to complex geological environments and has a large detection coverage and good signal penetration capability.
[0005] This application provides a shield tunneling geological exploration head, specifically comprising a conical body, wherein:
[0006] The outer circumferential surface of the conical body is provided with a spiral guide groove that extends spirally from the bottom of the conical body to the tip of the conical body;
[0007] The conical body has an inner cavity and a through-hole, and a detection module for detecting geological information is installed in the inner cavity of the conical body.
[0008] As a further preferred embodiment, the bottom diameter of the conical body is 100mm-150mm, the axial length is 150mm-200mm, and the tip angle is 30 degrees-45 degrees.
[0009] As a further preferred embodiment, the spiral angle of the spiral guide groove is 15 degrees to 20 degrees.
[0010] As a further preferred embodiment, the spiral guide groove has a groove width of 5mm and a groove depth of 3mm.
[0011] As a further preferred embodiment, the pores are distributed in an array on the bottom surface of the conical body and are arranged to penetrate along the axial direction of the conical body.
[0012] As a further preferred embodiment, the pore diameter of the conical body is 2mm-5mm, and the porosity is 30%-40%.
[0013] As a further preferred embodiment, the detection module includes an acoustic wave transmitter and / or an electromagnetic wave transmitter.
[0014] As a further preferred embodiment, the detection module is detachably disposed within the conical body.
[0015] As a further preferred embodiment, the bottom surface of the conical body is provided with a connection interface for connecting to the tunnel boring machine.
[0016] As a further preferred embodiment, the connection interface has a through internal channel that communicates with the inner cavity of the conical body.
[0017] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:
[0018] The probe head of this application adopts a unique structural design. The conical body can be customized by 3D printing. The conical contour design of the body helps maintain the tunneling direction during shield tunneling operations and reduces path deviation, especially performing excellently in complex geological environments. The spiral guide channel on the surface of the body can guide soil and water to flow out along the spiral path, reducing soil accumulation, blockage and compaction around the probe head, thereby improving the penetration of the detection signal. The set pores not only serve as transmission channels for the detection module, enhancing the signal coverage, but also reduce the weight of the probe head. This allows this shield tunneling geological probe head to adapt to complex geological environments, with a large detection coverage and strong signal penetration capability. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a shield tunneling geological detection head provided in an embodiment of this application;
[0020] Figure 2 This is a cross-sectional view of a shield tunneling geological detection head provided in an embodiment of this application;
[0021] Figure 3 This is a schematic diagram of the bottom structure of a shield tunneling geological exploration head provided in an embodiment of this application.
[0022] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:
[0023] 1. Conical body; 2. Spiral guide groove; 3. Pore; 4. Detection module; 5. Connection interface; 5-1. Inner channel; 6. Seal. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0025] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.
[0026] This application discloses a shield tunneling geological detection head. (Refer to...) Figure 1 and Figure 2 The shield tunneling geological detection head includes a conical body 1, wherein: the outer circumferential surface of the conical body 1 is provided with a spiral guide groove 2 extending spirally from the bottom of the conical body 1 to the tip of the conical body 1; the conical body 1 is provided with an inner cavity and a through hole 3, and a detection module 4 for detecting geological information is provided in the inner cavity of the conical body 1.
[0027] Under this design, the conical profile of the probe head helps maintain the tunneling direction during shield tunneling operations and reduces path deviation, especially performing exceptionally well in complex geological environments. The spiral guide channel 2 guides soil and water flow along the spiral path to discharge, reducing soil accumulation, blockage, and compaction around the probe head, thereby improving the penetration of the detection signal. The pores 3 not only serve as the transmission channel for the detection module 4, enhancing the signal coverage, but also reduce the weight of the probe head. This allows the shield tunneling geological probe head to adapt to complex geological environments and provides strong detection coverage and signal penetration capabilities.
[0028] Furthermore, in some embodiments, the material of the conical body 1 is a high-strength engineering plastic (such as PEEK, polyether ether ketone) or a metal matrix composite (such as aluminum-based carbon fiber composite), and the conical body 1 is preferably integrally formed by 3D printing technology.
[0029] Preferably, the bottom diameter of the conical body 1 is 100mm-150mm, the axial length (i.e. the height when the conical body 1 is placed vertically) is 150mm-200mm, and the angle of the tip is 30 degrees-45 degrees. The conical body 1 with this size design can greatly reduce soil resistance and ensure the smooth progress of the detection operation. At the same time, this size design is conducive to the compatibility of this detection head with conventional shield tunneling equipment.
[0030] If the bottom diameter of the conical body 1 is too small (e.g., less than 100 mm) and the axial length is too short (e.g., less than 150 mm), the slag discharge space of the probe will be insufficient, which may cause the spiral guide channel 2 to become blocked. If the bottom diameter of the conical body 1 is too large (e.g., greater than 150 mm) and the axial length is too long (e.g., greater than 200 mm), the contact area between the conical body 1 and the stratum will be large, the frictional resistance will increase significantly, the propulsion energy consumption will increase, and it may cause excessive stratum disturbance in soft soil strata.
[0031] If the sharp angle of the tip of the conical body 1 is less than 30 degrees, the tip will be too sharp. Although it has strong penetrating power, it is prone to wear or breakage (especially in gravel-bearing strata), and the manufacturing process is difficult. If the sharp angle of the tip of the conical body 1 is greater than 45 degrees, the conical body 1 will be too blunt, which may lead to increased propulsion resistance and require higher thrust during use.
[0032] Furthermore, in some embodiments, the spiral guide groove 2 has a groove width of 5mm, a groove depth of 3mm, a spiral angle of 15 degrees to 20 degrees, and a smooth inner surface.
[0033] With this design, the size of the spiral guide channel 2 is more suitable, the soil and water flow are discharged well along the spiral path, and the soil around the probe is less likely to become compacted or blocked due to the excavation and squeezing force of the probe, thus improving the penetration of the detection signal.
[0034] Furthermore, in some embodiments, the probe head is internally formed with multiple pores 3 using 3D printing technology. The pores 3 are distributed in an array on the bottom surface of the conical body 1 and extend through the axial direction of the conical body 1. The array distribution scheme includes, but is not limited to, a honeycomb array, a matrix array, or a circular array.
[0035] Preferably, the aperture of the pore 3 in the probe is 2mm-5mm and the porosity is about 30%-40%. The probe with this design has good strength and can keep the weight of the probe low, which can be controlled between 1.5kg and 2kg.
[0036] Preferably, in some embodiments, a filter structure is provided at the opening of the pore 3. The filter structure includes, but is not limited to, using a hydrophobic nanomembrane or a fine-pore filter screen. The filter structure can intercept sediment and allow sound waves and electromagnetic waves to pass through.
[0037] Furthermore, in some embodiments, the detection module 4 includes an acoustic wave transmitter and / or an electromagnetic wave transmitter. That is, the detection module 4 includes at least one of an acoustic wave transmitter and an electromagnetic wave transmitter.
[0038] Preferably, the detection module 4 is fixed to the axis of the conical body 1 by bolts, and its signal transmission direction is parallel to the axis of the conical body 1, so as to realize the synchronous transmission of sound waves and electromagnetic waves and obtain multi-parameter geological information.
[0039] Furthermore, in some embodiments, the cone-shaped body 1 has a connection interface 5 on its cone bottom surface for connecting with a tunnel boring machine.
[0040] Preferably, the connection interface 5 adopts a standardized design to adapt to different models of tunnel boring machines. The connection interface 5 is preferably fixed by a spiral locking or quick snap fastener to improve the convenience and stability of installation.
[0041] The connection interface 5 includes, but is not limited to, snap-fit interfaces (such as snap-fit locking rings), threaded interfaces (such as M30 threaded interfaces), or pin-type quick-install interfaces. The connection interface 5 is preferably connected to the front support of the tunnel boring machine.
[0042] In some embodiments, such as Figure 3 As shown, the connection interface 5 is a threaded interface, which is in the form of a threaded tube; the bottom of the conical body 1 is provided with a threaded hole that communicates with the inner cavity of the conical body 1, and the threaded interface is threadedly connected to the threaded hole. More preferably, a sealing element 6 (such as an embedded sealing rubber ring) is provided between the outer periphery of the threaded interface and the threaded hole to ensure that the probe is installed firmly and the joint is waterproof, adapting to the high humidity underground environment.
[0043] Furthermore, in some embodiments, the connection interface 5 has a through inner channel 5-1, and the inner channel 5-1 communicates with the inner cavity of the conical body 1. The inner channel 5-1 is adapted to allow a transmission cable to pass through so that the detection module 4 can be connected to an external signal processing system via the transmission cable.
[0044] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.
[0045] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0048] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A shield tunneling geological detection head, characterized in that, Includes a conical body (1), wherein: The outer circumferential surface of the conical body (1) is provided with a spiral guide groove (2) that extends spirally from the bottom of the conical body (1) to the tip of the conical body (1); The conical body (1) is provided with an inner cavity and a through hole (3), and a detection module (4) for detecting geological information is provided in the inner cavity of the conical body (1).
2. The ground-penetrating sonde of claim 1, wherein, The bottom diameter of the conical body (1) is 100mm-150mm, the axial length is 150mm-200mm, and the tip angle is 30 degrees-45 degrees.
3. The ground-penetrating sonde of claim 1, wherein, The spiral angle of the spiral guide groove (2) is 15 degrees to 20 degrees.
4. The ground-penetrating sonde of claim 1, wherein, The spiral guide groove (2) has a groove width of 5mm and a groove depth of 3mm.
5. The ground-penetrating sonde of claim 1, wherein, The pores (3) are arranged in an array on the bottom surface of the conical body (1) and are arranged to penetrate along the axial direction of the conical body (1).
6. The ground-penetrating sonde of claim 1, wherein, The diameter of the pores (3) in the conical body (1) is 2mm-5mm, and the porosity is 30%-40%.
7. The ground-penetrating sonde of claim 1, wherein, The detection module (4) includes an acoustic wave transmitter and / or an electromagnetic wave transmitter.
8. The ground-penetrating sonde of claim 1, wherein, The detection module (4) is detachably installed inside the conical body (1).
9. A ground-penetrating sonde according to any one of claims 1-8, wherein, The bottom surface of the conical body (1) is provided with a connection interface (5) for connecting with the tunnel boring machine.
10. The ground-penetrating sonde of claim 9, wherein, The connection interface (5) has a through inner channel (5-1), and the inner channel (5-1) is connected to the inner cavity of the conical body (1).