Device for treating residual water in complex stratum
By combining drill bits, casings, and vibration impact equipment, the problem of residual water treatment in complex formations has been solved, achieving efficient and flexible drainage, and is suitable for residual water treatment in complex formations.
Patent Information
- Application Number
- CN202520147221.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-22
AI Technical Summary
When constructing horizontal wells in complex formations, residual water treatment is difficult to carry out effectively, especially in the case of alternating sand and gravel formations or gravel formations with high sand content. Existing equipment is prone to clogging, resulting in difficult and inefficient drilling.
The system employs a combination of drill bit, casing, drain pipe, and vibration impact equipment. The drill bit is funnel-shaped, the casing has through holes and fixing grooves, and the drain pipe is detachably connected. The vibration impact equipment advances the casing and extracts residual water, while the combination of a mesh screen and a vacuum pump improves the drainage effect.
It enables efficient and flexible residual water treatment in confined spaces, avoids hole collapse, and improves construction efficiency and drainage effect.
Smart Images
Figure CN223753361U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a geotechnical engineering technical field, especially relate to a device for treating residual water of complex stratum. BACKGROUND
[0002] With the development of society, the city ground construction density is more and more big, and the utilization and development of underground space are more and more, such as subway tunnel, municipal pipeline dark burying, power pipeline into ground etc. Because the increase of underground depth will be affected by underground water, need to carry out underground water treatment, the conventional water stop method used in underground space subsurface engineering is grouting, but due to the comprehensive reasons such as stratum and construction quality, the complete water stop effect cannot be achieved, and most of them adopt the method of dewatering to treat the underground water of subsurface engineering.
[0003] During the dewatering process, residual water will inevitably appear at the stratum junction due to stratum interaction and permeability, and the treatment of residual water is another difficulty, according to the lithology of aquifer, the spiral rod drill or handheld drill can be used to drill and pump for fine particle stratum such as sand layer, and the down-the-hole hammer drill pipe can be used to drill and pump for coarse particle such as gravel. However, in the case of interaction between sand layer and gravel or high sand content in gravel stratum, during the construction of horizontal well for pre-pumping at the working face, due to the angle (horizontal or negative angle), the water flows by itself with the sand, and the sand will block the down-the-hole hammer when changing the drill rod or casing, causing difficulty in hole drilling, and it is difficult to operate in the narrow space in the hole, and the efficiency is low. UTILITY MODEL CONTENTS
[0004] The utility model mainly aims at providing a device for treating residual water of complex stratum to solve the above problems.
[0005] To achieve the above purpose, the utility model provides a device for treating residual water of complex stratum, which comprises:
[0006] A drill bit;
[0007] A casing, the first end of the casing is detachably connected with the drill bit, and a through hole coaxial with the casing is arranged on the casing;
[0008] A drain pipe, the drain pipe is sleeved in the through hole and is in sliding connection with the through hole;
[0009] A vibration impact device for hammering the casing.
[0010] Further, the second end of the casing is detachably connected with a hammering sheath.
[0011] Further, the drill bit is funnel-shaped, and the open end of the drill bit is provided with an annular retaining wall.
[0012] Further, the inner wall of the drill bit is uniformly distributed with a plurality of fixed pins, and the side wall of the casing is provided with a plurality of fixed grooves matched with the fixed pins.
[0013] Further, the fixed groove is L-shaped, and one end of the fixed groove close to the drill bit is communicated with the outside.
[0014] Further, the drain pipe is wound with a gauze screen.
[0015] Further, the casing is provided with a plurality of casings connected end to end.
[0016] The utility model has the following beneficial effects:
[0017] The utility model has the advantages of small construction operation area, high flexibility, all-directional construction, convenient operation in narrow space, avoidance of hole collapse under complex geological conditions, and ensured construction efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a whole schematic view of the device for treating residual water in complex stratum.
[0019] Figure 2 It is a drill bit schematic view of the device for treating residual water in complex stratum. Figure One ;
[0020] Figure 3 It is a drill bit schematic view of the device for treating residual water in complex stratum. Figure Two ;
[0021] Figure 4 It is a casing schematic view of the device for treating residual water in complex stratum.
[0022] In the figure, 1 is a drill bit, 2 is a casing, 3 is a drain pipe, 4 is a hammering sheath, 5 is a fixed pin, and 6 is a fixed groove. DETAILED DESCRIPTION
[0023] In order to achieve the above purposes and effects, the utility model adopts the technical means and structure, and the features and functions are described in detail in combination with the preferred embodiments of the utility model with reference to the drawings.
[0024] As shown in the accompanying drawings, Figures 1-4 The utility model provides a device for treating residual water in complex stratum, which comprises:
[0025] a drill bit 1;
[0026] a casing 2, the first end of the casing 2 is detachably connected with the drill bit 1, and the casing 2 is provided with a through hole coaxial with the casing 2;
[0027] The drain pipe 3 is sleeved in the through hole and is in sliding connection with the through hole;
[0028] The vibration impact device is used for hammering the casing 2.
[0029] Specifically, the drill bit 1 is funnel-shaped, and the open end of the drill bit 1 is provided with an annular retaining wall. The first end of the casing 2 extends into the funnel of the drill bit 1 and abuts against the inner wall of the drill bit 1.
[0030] Specifically, the drain pipe 3 can be a plastic flower pipe, and a gauze net is wound on the plastic flower pipe.
[0031] In actual use, the worker first installs the casing 2 on the drill bit 1, then inserts the drill bit 1 into the soil layer, and then hammers the end of the casing 2 away from the drill bit 1 by the vibration impact device, so that the drill bit 1 and the casing 2 are pushed into the soil layer. After being pushed into place, the hammering is stopped, the drain pipe 3 is inserted into the through hole on the casing 2, the drain pipe 3 extends into the soil layer, then the casing 2 is disassembled from the drill bit 1 and taken out of the soil layer, so that the drain pipe 3 is in contact with the soil layer, and the residual water in the soil layer is drained through the drain pipe 3.
[0032] Specifically, the drill bit 1 is located in the pebble layer and is close to the lower clay layer.
[0033] Specifically, the vibration impact device can be a pneumatic pick or an electric pick.
[0034] Specifically, during drainage, if the drainage effect is not good, a vacuum pump can be used to suck the drain pipe 3 to improve the drainage effect.
[0035] In this embodiment, the second end of the casing 2 is detachably connected with a hammering sheath 4. Thus, the casing 2 is protected by the hammering sheath 4, and damage of the casing 2 by the vibration impact device is avoided.
[0036] In another embodiment, a plurality of fixing pins 5 are uniformly distributed on the inner wall of the drill bit 1 in the circumferential direction, and a plurality of L-shaped fixing grooves 6 corresponding to the fixing pins 5 are arranged on the side wall of the casing 2. The end of the fixing groove 6 close to the drill bit 1 is in communication with the outside. When the drill bit 2 and the casing 2 are connected, the worker can insert the fixing pin 5 into the fixing groove 6 and rotate the casing 2 or the drill bit 1, so that the fixing pin 5 is rotated to the other end of the fixing groove 6, and the drill bit 1 and the casing 2 are relatively fixed and cannot approach or move away from each other. When the drill bit 1 is pushed into the soil layer to the position, the worker can rotate the casing 2 to change the position of the fixing pin 5 in the fixing groove 6, and then pull the casing 2 outwards to separate the casing 2 from the drill bit 1.
[0037] Specifically, the protecting tubes 2 can be arranged in sequence according to actual needs, the protecting tubes 2 are detachably connected, the drill bit 1 and the hammering sheath 4 are respectively located at two ends of the whole connected by the protecting tubes 2, and the length of the drain pipe 3 is adapted to the whole, so that the soil layers of different depths are drained.
[0038] The above merely describes the preferred embodiments of the present application, not all the embodiments, and anyone should know that the structural changes made under the inspiration of the present application, any technical solution with the same or similar to the present application, belongs to the protection scope of the present application.
Claims
1. An apparatus for treating residual water in a complex formation, comprising: The utility model relates to a drilling device, which comprises: a drill bit (1); a casing (2) with a first end detachably connected to the drill bit (1), the casing (2) being provided with a through hole coaxial with the casing (2); a drain pipe (3) sleeved in the through hole and in sliding connection with the through hole; a vibration impact device for hammering the casing (2).
2. The apparatus for treating residual water in a complex formation according to claim 1, wherein, A hammering sheath (4) is detachably connected to a second end of the casing (2).
3. The apparatus of claim 1, wherein, The drill bit (1) is funnel-shaped, and the open end of the drill bit (1) is provided with an annular protective wall.
4. The apparatus of claim 3, wherein, Multiple fixing pins (5) are uniformly distributed on the inner wall of the drill bit (1), and the side wall of the casing (2) is provided with multiple fixing grooves (6) adapted to the fixing pins (5).
5. A device for treating residual water in a complex formation as claimed in claim 4, characterized in that, The fixing grooves (6) are L-shaped, and one end of the fixing grooves (6) close to the drill bit (1) is in communication with the outside.
6. The apparatus of claim 1, wherein, A gauze is wound on the drain pipe (3).
7. The apparatus of claim 1, wherein, Multiple casings (2) are provided, and the multiple casings (2) are connected end to end.