Orifice outburst prevention device for anchor rod and anchor cable construction below underground water level line
Through the orifice anti-protrusion devices of the fixed plate group, sealing plate group and positioning plate group, the problem of protrusion on the outer side of the casing in the water-rich sand layer is solved, and the safety and stability of anchor cable construction are achieved.
Patent Information
- Application Number
- CN202422426010.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-09
AI Technical Summary
When the anchor cable construction is carried out in the water-rich sand formation, bursts are prone to occur on the outside of the casing, resulting in deformation of the ground and surrounding structures. The existing technology lacks effective control measures.
The orifice anti-protrusion device of the fixed plate group, the sealing plate group and the positioning plate group is used to connect to the ground connection wall through the fixed plate group, the sealing plate plate is in contact with the sleeve, and the positioning plate group is fixed to form a sealing structure to prevent water and sand from gushing outwards on the sleeve.
Effectively prevent water and sand from gushing out of the casing during drilling, avoid deformation of the ground and surrounding structures, and reduce formation losses.
Smart Images
Figure CN223151176U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of anchor rod and anchor cable construction, in particular to the field of anchor rod and anchor cable construction below the groundwater level line, and more specifically to an orifice anti-burst device for anchor rod and anchor cable construction below the groundwater level line. Background Technique
[0002] In the existing anchor rod and anchor cable construction below the groundwater level line, when drilling construction is carried out by full casing following, basically, the casing is directly passed through the embedded hole of the diaphragm wall and other retaining structures for drilling. If the construction stratum is a water-rich sand layer, a large amount of media in the stratum will gush out from the gap between the casing and the embedded hole along with the water, which is likely to cause the deformation of the ground and surrounding structures and endanger their safety. However, in the current construction process, no measures are taken to control the gushing outside the casing.
[0003] It can be seen that for strata prone to gushing such as water-rich sand layers, when drilling with casing following in the anchor rod and anchor cable construction process, how to control the gushing outside the casing and minimize the stratum loss is the key to construction control.
[0004] Therefore, it has become an urgent problem in the industry to provide an orifice anti-burst device for anchor rod construction below the groundwater level line that can prevent orifice gushing and avoid the deformation of the ground and surrounding structures caused by drilling water and sand gushing. Content of the Utility Model
[0005] Aiming at the above problems, one of the purposes of the utility model is to provide one that can prevent orifice gushing and reduce stratum loss.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] The utility model provides an orifice anti-burst device for anchor rod and anchor cable construction below the groundwater level line, which includes: a fixed plate group, a sealing plate and a positioning plate group. Among them, the fixed plate group includes a first end plate fixed on the diaphragm wall, a first connecting plate connected to the top end of the first end plate and extending outward, a second connecting plate connected to the bottom end of the first end plate and extending outward, and a second end plate connected between the first connecting plate and the second connecting plate. The length of the first connecting plate is less than the length of the second connecting plate. The sealing plate is arranged on the outer surface of the second end plate. The positioning plate group is pressed on the outer edge of the sealing plate and fixed on the second end plate by bolts. A first through hole is opened in the center of the first end plate, a second through hole is opened in the center of the second end plate, and a central through hole is opened in the center of the sealing plate, so that the outer casing sequentially passes through the central through hole, the second through hole and the first through hole and enters the ground.
[0008] In some embodiments, a sealing cushion plate is clamped between the first end plate and the diaphragm wall.
[0009] In some embodiments, the first end plate is connected to the diaphragm wall by expansion bolts.
[0010] In some embodiments, the included angle between the first end plate and the second end plate is set to 15 to 25 degrees.
[0011] In some embodiments, the diameter of the central through hole is smaller than the diameter of the outer sleeve, and the diameters of the first through hole and the second through hole are larger than the diameter of the outer sleeve.
[0012] In some embodiments, the positioning plate group includes a plurality of pressing plate pieces, and each pressing plate piece is disposed around the outer edge of the sealing plate.
[0013] In some embodiments, both the first end plate and the second end plate are steel plates.
[0014] In some embodiments, the first end plate and the second end plate are provided with bolt holes.
[0015] In some embodiments, the sealing plate is a rubber plate.
[0016] In some embodiments, the sealing cushion plate is a rubber plate or a polyurethane plate.
[0017] Due to the adoption of the above technical solutions, the present utility model has at least obtained the following technical effects: during the underwater anchor rod drilling construction, through the orifice anti-burst device for the anchor cable construction below the groundwater level line of the present utility model, the anti-burst and gushing outside the casing is realized, and the deformation of the ground and surrounding structures caused by the water and sand gushing outside the casing during drilling is avoided. Description of the Drawings
[0018] Figure 1 A side sectional view of the orifice anti-burst device for the anchor cable construction below the groundwater level line of the present utility model is shown;
[0019] Figure 2 A front view of the orifice anti-burst device for the anchor cable construction below the groundwater level line of the present utility model is shown;
[0020] Description of the Reference Numerals:
[0021] 1 - fixing plate group, 11 - first end plate, 110 - first through hole, 12 - second end plate, 120 - second through hole, L1 - first connecting plate, L2 - second connecting plate, 2 - sealing plate, 20 - central through hole, 3 - positioning plate group, 30 - pressing plate piece, 4 - sealing cushion plate, P - expansion bolt, Q - bolt, W - diaphragm wall, T - outer sleeve, S - underground. Detailed implementation manners
[0022] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the above components. Without further statement, the above terms have no special meaning and cannot be construed as indicating or implying relative importance.
[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0025] As a non-limiting implementation manner, as Figure 1 and Figure 2 shown, the orifice anti-burst device for underground anchor cable construction below the groundwater level line provided by the present utility model includes: a fixing plate group 1, a sealing plate 2, and a positioning plate group 3.
[0026] Specifically, the fixing plate group 1 includes: a first end plate 11, a second end plate 12, a first connecting plate L1, and a second connecting plate L2. The first end plate 11 is firmly connected to the diaphragm wall W through an expansion bolt P. The first connecting plate L1 is welded to the top of the first end plate 11 and extends outward. The second connecting plate L2 is welded to the bottom of the first end plate 11 and extends outward. The second end plate 12 is welded between the first connecting plate L1 and the second connecting plate L2, as Figure 1As shown, the length of the first connecting plate L1 is less than that of the second connecting plate L2, so that an angle is formed between the first end plate 11 and the second end plate 12, thus achieving the effect of obliquely inserting the outer sleeve and obliquely stretching the anchor cable of the bolt. In this non-limiting embodiment, the first connecting plate L1 and the second connecting plate L2 can be steel pipes or steel plates.
[0027] As Figure 1 and Figure 2 shown, a sealing plate 2 made of a rubber plate is disposed on the outer surface of the second end plate 12. A positioning plate group 3 is pressed on the outer edge of the sealing plate 2 and fixed to the second end plate 12 by bolts Q. A first through hole 110 is formed in the center of the first end plate 11, a second through hole 120 is formed in the center of the second end plate 12, and a central through hole 20 is formed in the center of the sealing plate 2, so that the outer sleeve T can sequentially pass through the central through hole 20, the second through hole 110, and the first through hole 120 and enter the ground S.
[0028] In this non-limiting embodiment, in order to prevent water and sand gushing between the first end plate 11 and the diaphragm wall W, a sealing cushion plate 4 made of a rubber plate or a polyurethane plate is clamped between the first end plate 11 and the diaphragm wall W.
[0029] In order to prevent the mud and sediment underground from gushing out from the outer wall of the outer sleeve, the diameter of the central through hole 20 of the present utility model is smaller than the diameter of the outer sleeve T, so that the central through hole 20 can tightly hoop the outer wall of the outer sleeve T by using the elasticity of the sealing plate itself.
[0030] As another non-limiting embodiment, as Figure 2 described, the positioning plate group 3 includes a plurality of pressing plate pieces 30. Each pressing plate piece 30 is disposed around the outer edge of the sealing plate 3 and then fixed to the second end plate 12 by bolts, so as to achieve the fixing effect of the sealing plate 3.
[0031] Therefore, when using the orifice anti-burst device for anchor cable construction below the groundwater level provided by the present utility model, first, the first end plate 11 is firmly connected to the diaphragm wall W by expansion bolts. A sealing cushion plate 4 made of a rubber plate or a polyurethane plate is used for sealing between the first end plate 11 and the diaphragm wall W. The second end plate 12 is inclined at an angle of 20 degrees with the first end plate through the first connecting plate L1 and the second connecting plate L2. Align the central through hole 20 of the sealing plate 2 with the second through hole 120 of the second end plate 12, and then sequentially pass the outer sleeve T through the central through hole 20, the second through hole 120, and the first through hole 110 until it reaches the ground S. Then, press each pressing plate piece 30 on the sealing plate 2 and fix it to the second end plate 12 by bolts Q, thus completing the entire installation process.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. An orifice anti-burst device for the construction of anchor rods and anchor cables below the groundwater level line, characterized in that, Comprising: A fixed plate group, a sealing plate and a positioning plate group. Among them, the fixed plate group includes a first end plate fixed to the diaphragm wall, a first connecting plate connected to the top end of the first end plate and extending outward, a second connecting plate connected to the bottom end of the first end plate and extending outward, and a second end plate connected between the first connecting plate and the second connecting plate. The length of the first connecting plate is less than the length of the second connecting plate. The sealing plate is arranged on the outer surface of the second end plate. The positioning plate group is pressed on the outer edge of the sealing plate and fixed to the second end plate. A first through hole is opened at the center of the first end plate, a second through hole is opened at the center of the second end plate, and a central through hole is opened at the center of the sealing plate, so that the outer sleeve pipe passes through the central through hole, the second through hole and the first through hole in sequence and enters the ground.
2. The orifice anti-burst device for the construction of anchor rods and anchor cables below the groundwater level line according to claim 1, characterized in that, A sealing cushion plate is clamped between the first end plate and the diaphragm wall.
3. The orifice anti-burst device for the construction of anchor rods and anchor cables below the groundwater level line according to claim 1, characterized in that, The first end plate is connected to the diaphragm wall by expansion bolts.
4. The orifice anti-burst device for the construction of anchor rods and anchor cables below the groundwater level line according to claim 1, characterized in that, The included angle between the first end plate and the second end plate is set to 15 to 25 degrees.
5. The orifice anti-burst device for the construction of anchor rods and cables below the groundwater level line according to claim 1, characterized in that, The diameter of the central through hole is smaller than the diameter of the outer sleeve pipe, and the diameters of the first through hole and the second through hole are larger than the diameter of the outer sleeve pipe.
6. The orifice anti-burst device for construction of anchor rods and anchor cables below the groundwater level line according to claim 1, characterized in that, The positioning plate group includes a plurality of pressing plates, and each pressing plate is arranged around the outer edge of the sealing plate.
7. The orifice anti-burst device for construction of anchor rods and cables below the groundwater level line according to claim 1, characterized in that, Both the first end plate and the second end plate are steel plates.
8. The orifice anti-burst device for construction of anchor rods and cables below the groundwater level line according to claim 1, characterized in that, The sealing plate is a rubber plate.
9. The orifice anti-burst device for construction of anchor rods and cables below the groundwater level line according to claim 2, characterized in that, The sealing cushion plate is a rubber plate or a polyurethane plate.