Movable fault zone tunnel large-angle advanced drainage drilling device
By using a large-angle advanced drilling device, the problem of poor water drainage in tunnel construction in active fault zones has been solved, achieving efficient water drainage, reduced costs, and improved safety, and adapting to complex geological conditions.
Patent Information
- Application Number
- CN202520372610.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing technologies for tunnel construction in active fault zones suffer from poor drainage, long construction periods, and high costs, making it difficult to effectively cope with high groundwater pressure and the risk of water inrush.
It adopts a large-angle advanced drilling device, and through drilling equipment and angle adjustment device, it ensures that the drilling direction is consistent with the groundwater flow direction. The drilling angle can be adjusted to 45°. It is equipped with an angle control system to automatically adjust the drilling angle and achieve efficient water drainage.
It effectively reduces groundwater pressure, minimizes water inrush accidents, improves construction safety, lowers construction costs, and adapts to different geological conditions, especially suitable for active fault zones.
Smart Images
Figure CN223676339U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of tunnel drilling, and particularly relates to a large-angle advanced drainage drilling device for a tunnel in an active fracture zone. BACKGROUND
[0002] At present, the advanced small catheter construction mainly adopts the following two methods:
[0003] 1. Conventional advanced drilling drainage:
[0004] The small-angle advanced drilling drainage has a small drilling angle and limited drainage range, and it is difficult to effectively reduce the large-range groundwater pressure.
[0005] Due to the small drilling angle and limited drilling length, the drainage effect is poor, especially in the active fracture zone where the groundwater pressure is large, and the conventional drainage measures cannot meet the demand. In particular, at the vault position, it is difficult to effectively reduce the groundwater outflow after drilling, greatly increasing the construction safety risk.
[0006] 2. Grouting water plugging:
[0007] The groundwater is blocked by grouting, but the grouting material has a high cost and a long construction period, and in the active fracture zone, the grouting effect is unstable and repeated water gushing is prone to occur.
[0008] The grouting water plugging can only temporarily alleviate the water gushing problem and cannot fundamentally reduce the groundwater pressure, and there is a risk of slurry loss during the grouting process, affecting the construction quality.
[0009] 3. Drainage pipe drainage:
[0010] The drainage pipe is used for drainage, but the arrangement of the drainage pipe is limited by the tunnel structure and cannot be arranged before the tunnel excavation construction and cover a large range of groundwater area, and the maintenance cost of the drainage pipe is high and easy to block.
[0011] In summary, the existing drainage measures have the problems of poor drainage effect, long construction period, high cost, etc. in the active fracture zone tunnel construction, and it is difficult to effectively deal with the high groundwater pressure and water gushing risk. UTILITY MODEL CONTENTS
[0012] Therefore, in order to solve the above problems, the utility model provides a large-angle advanced drainage drilling device for a tunnel in an active fracture zone, which mainly solves the problems of large groundwater pressure and high water gushing risk in the active fracture zone tunnel construction. Through large-angle advanced drilling drainage, the groundwater pressure in the tunnel construction is effectively reduced, the occurrence of water gushing accidents is reduced, the construction safety is improved, and the construction cost is reduced.
[0013] The utility model discloses a kind of active fracture zone tunnel large-angle advanced drainage drilling devices, it is characterized by;The main structure of the patent includes drilling equipment and angle adjusting device;
[0014] Drilling equipment is installed on angle adjusting device, drilling angle can be adjusted according to construction demand, ensure that drilling direction is consistent with groundwater flow direction, improve drainage effect;
[0015] The upper end of angle adjusting device is drilling equipment carrier, rear lower end is stable base, pin hole control angle is set between the two, and strip hole is set in the front lower end of angle adjusting device to adjust height.
[0016] According to the active fracture zone tunnel large-angle advanced drainage drilling device described in the application, characterized by;Drilling equipment adopts large-angle drilling equipment (YQ-100 down-the-hole drill), drilling angle is adjustable, and the maximum angle can reach 45°, which can cover a larger range of groundwater area.
[0017] According to the active fracture zone tunnel large-angle advanced drainage drilling device described in the application, characterized by;Drilling equipment is equipped with angle control system, which can automatically adjust drilling angle according to geological conditions, to ensure the accuracy and effectiveness of drilling.
[0018] The utility model has the following advantages: (1) efficient drainage: through large-angle advanced drilling, water on the vault can be effectively drained to the tunnel bottom, effectively reducing groundwater pressure and reducing the risk of vault water gushing. (2) Construction safety: drainage measures can significantly reduce groundwater pressure during tunnel construction, reduce the occurrence of water gushing accidents and improve construction safety. (3) Reduce cost: compared with traditional measures such as grouting and water plugging, the drainage measures of the patent have short construction period, low cost and simple maintenance, which can effectively reduce construction cost. (4) Strong adaptability: the drilling angle of the patent can be adjusted to meet the drainage needs of different geological conditions, especially for complex geological conditions such as active fracture zone. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 It is the overall implementation schematic diagram of the application;
[0020] Fig. 2 It is the internal end implementation structure schematic diagram of the application;
[0021] Fig. 3 It is the external end implementation structure schematic diagram of the application.
[0022] Among them: drilling equipment 1, angle adjusting device 2, stable base 3, pin hole 4, strip hole 5. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings Figs. 1-3The utility model discloses a detailed description, the technical scheme of the utility model embodiment is clearly and completely described, obviously, the described embodiment is only a part of the utility model embodiment, but not all embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.
[0024] The utility model discloses a kind of active fracture zone tunnel large-angle advanced drainage drilling device, as shown in Fig. Figs. 1-3 It can be implemented as follows; The main structure of the patent includes drilling equipment 1 and angle adjusting device 2; Drilling equipment 1 is installed on angle adjusting device 2, which can adjust the drilling angle according to the construction requirements, ensure that the drilling direction is consistent with the direction of groundwater flow, and improve the drainage effect. The upper end of the angle adjusting device 2 is a drilling equipment carrier, and the rear lower end is a stable base 3. A pin hole 4 is provided between the two to control the angle. A slot 5 is provided at the front lower end of the angle adjusting device 2 to adjust the height.
[0025] In the implementation of the present application; The drilling equipment 1 adopts a large-angle drilling equipment (YQ-100 down-the-hole drill), which can adjust the drilling angle and has a maximum angle of 45°, covering a larger range of underground water areas.
[0026] In the implementation of the present application; The drilling equipment 1 is equipped with an angle control system, which can automatically adjust the drilling angle according to the geological conditions, ensuring the accuracy and effectiveness of drilling.
[0027] In summary, the main structure of the patent includes drilling equipment and angle adjusting device, and also relates to a drainage pipe.
[0028] (1) Drilling equipment: a large-angle drilling equipment is used, which can adjust the drilling angle and has a maximum angle of 45°, covering a larger range of underground water areas. The drilling equipment is equipped with an angle control system, which can automatically adjust the drilling angle according to the geological conditions, ensuring the accuracy and effectiveness of drilling.
[0029] (2) Angle adjusting device: it can adjust the drilling angle according to the construction requirements, ensure that the drilling direction is consistent with the direction of groundwater flow, and improve the drainage effect. The angle adjusting device is easy to operate and has high adjustment precision. The operation process is as follows:
[0030] 1) Determine the drilling position at the tunnel face, install the drilling equipment and angle adjusting device.
[0031] 2) Adjust the drilling angle according to the geological exploration data to ensure that the drilling direction is consistent with the direction of groundwater flow.
[0032] 3) Start the drilling equipment and perform large-angle advanced drilling. The drilling depth is determined according to the groundwater pressure.
[0033] 4) After the drilling is completed, install the drain pipe to lead the groundwater out to the drainage system outside the tunnel.
[0034] 5) Monitor the change of groundwater pressure to ensure that the drainage effect reaches the expectation, and perform supplementary drilling if necessary.
[0035] The patent has the following advantages and beneficial effects: (1) Efficient drainage: through large-angle advanced drilling, the water on the arch top can be effectively drained to the tunnel bottom, effectively reducing the groundwater pressure and reducing the risk of arch top water gushing. (2) Construction safety: the drainage measures can significantly reduce the groundwater pressure during tunnel construction, reduce the occurrence of water gushing accidents, and improve the safety of construction. (3) Reduce costs: compared with traditional measures such as grouting and water plugging, the drainage measures of the patent have short construction period, low cost, and simple maintenance, which can effectively reduce the construction cost. (4) Strong adaptability: the drilling angle of the patent can be adjusted to adapt to the drainage needs under different geological conditions, especially suitable for complex geological conditions such as active fault zones.
[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A large-angle advanced drainage drilling device for a tunnel in an active fracture zone, characterized in that; The device structure comprises a drilling device (1) and an angle adjusting device (2); The drilling device (1) is installed on the angle adjusting device (2), which can adjust the drilling angle according to the construction requirements, ensure that the drilling direction is consistent with the direction of groundwater flow, and improve the drainage effect; The upper end of the angle adjusting device (2) is a drilling device carrier, the lower rear end is a stable base (3), a pin hole (4) is arranged between the two to control the angle, and a strip hole (5) is arranged at the lower front end of the angle adjusting device (2) to adjust the height.
2. The active fracture zone tunnel large angle advanced drainage drilling device according to claim 1, characterized in that; The drilling device (1) adopts a large-angle drilling device, the drilling angle is adjustable, the maximum angle can reach 45°, and a larger range of underground water area can be covered.
3. The active fracture zone tunnel large angle advanced drainage drilling device according to claim 1, characterized in that; The drilling device (1) is equipped with an angle control system, which can automatically adjust the drilling angle according to the geological conditions, and ensure the accuracy and effectiveness of drilling.