Underground diaphragm wall anchor rod reserved sleeve structure

Abstract

The utility model discloses an underground diaphragm wall anchor rod reserved casing pipe structure which comprises a reserved casing pipe, the reserved casing pipe is fixedly arranged in an underground diaphragm wall reinforcement cage, a water stop ring is fixedly arranged on the outer side of the reserved casing pipe, an anchor rod body is movably arranged in the reserved casing pipe, and a sealing plate is welded to the outer side of the bottom end of the reserved casing pipe. A limiting plug is welded to the top end of the reserved sleeve, a through hole is formed in the limiting plug, an anchor rod body is movably arranged in the through hole, an upper grouting pipe is welded to the side, facing upwards, of the reserved sleeve, a lower grouting pipe is welded to the side, facing downwards, of the reserved sleeve, and the upper grouting pipe and the lower grouting pipe both communicate with the interior of the reserved sleeve. The upper grouting pipe and the lower grouting pipe are both arranged to be in an L shape. By arranging the upper grouting pipe and the lower grouting pipe, after anchor rod construction is completed, the reserved sleeve can be fully filled with cement paste, then the anchor rod can be placed in a closed space, and water is effectively prevented from invading a gap between the anchor rod and a hole wall.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of anchor rod reserved sleeve, and particularly relates to an underground continuous wall anchor rod reserved sleeve structure. BACKGROUND

[0002] In the process of engineering construction, anchor rods are widely used as an important reinforcing means; anchor rods usually need to pass through soil or rock mass and be anchored in stable strata to provide tension to maintain the stability of the structure.

[0003] In many cases, these engineering parts are below the groundwater level or may be affected by rainwater and groundwater infiltration, and the strata through which the anchor rods pass may have abundant groundwater; if the connecting part between the anchor rod and the surrounding soil or rock mass does not have good waterproof performance, groundwater will penetrate into the small gap between the anchor rod and the hole wall, which may cause adverse changes in the mechanical properties of the soil or rock mass, such as softening and strength attenuation, ultimately weakening the anchoring efficiency of the anchor rod and the stability of the overall structure. SUMMARY

[0004] The utility model aims at providing an underground continuous wall anchor rod reserved sleeve structure to solve the problems raised in the background.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an underground continuous wall anchor rod reserved sleeve structure, which comprises: a reserved sleeve fixedly arranged inside a steel reinforcement cage of an underground continuous wall, a water stop ring fixedly arranged outside the reserved sleeve, an anchor rod body movably arranged inside the reserved sleeve, a sealing plate welded to the outside of the bottom end of the reserved sleeve, and a limiting plug welded to the top end of the reserved sleeve, wherein the limiting plug is provided with a through hole, and the anchor rod body is movably arranged inside the through hole; wherein one side of the reserved sleeve facing upwards is welded with an upper grouting pipe, one side of the reserved sleeve facing downwards is welded with a lower grouting pipe, the upper grouting pipe and the lower grouting pipe are both connected with the inside of the reserved sleeve, the upper grouting pipe and the lower grouting pipe are both provided in an L shape, and the upper grouting pipe and the lower grouting pipe are symmetrically arranged.

[0006] In a preferred embodiment, the central axis of the reserved sleeve coincides with the central axis of the anchor rod body, the upper grouting pipe and the lower grouting pipe each comprise a first pipe segment perpendicular to the central axis of the reserved sleeve and a second pipe segment parallel to the central axis of the reserved sleeve, and the second pipe segment extends to the outside of the steel reinforcement cage.

[0007] In a preferred embodiment, a connecting assembly is fixedly arranged outside the reserved sleeve, and the connecting assembly comprises: a connecting seat movably arranged outside the reserved sleeve, and a locking assembly fixedly arranged outside the connecting seat.

[0008] In a preferred embodiment, the connecting assembly further comprises a first threaded cylinder and a first internal hexagonal bolt, the first threaded cylinder is fixedly arranged inside one side of the connecting base, the first internal hexagonal bolt is arranged inside the first threaded cylinder through threaded connection, and the end of the first internal hexagonal bolt is tightly attached to the outside of the reserved sleeve.

[0009] In a preferred embodiment, the locking assembly comprises a locking base, a second threaded cylinder, a second internal hexagonal bolt and a control block, the locking base is fixedly arranged outside the connecting base, the second threaded cylinder is fixedly arranged inside one side of the locking base, the second internal hexagonal bolt is arranged inside the second threaded cylinder through threaded connection, the control block is slidingly arranged inside the locking base, the control block and the end of the second internal hexagonal bolt are rotationally connected, and the control block is arranged in the shape of an isosceles trapezoid.

[0010] In a preferred embodiment, the locking assembly further comprises sliding blocks, fixed columns and supporting plates, the sliding blocks are slidingly arranged inside both sides of the locking base, one side of each sliding block is arranged in the shape of an inclined edge, the inclined edge of one side of each sliding block is attached to the inclined edges of both sides of the control block, the fixed columns are fixedly arranged outside the sliding blocks, the supporting plates are rotationally arranged outside the ends of the fixed columns, the supporting plates are arranged in the shape of a circular arc, the inside of each supporting plate is attached to the outside of the vertical steel bars of the reinforcement cage, and the supporting plates, the fixed columns and the sliding blocks are symmetrically arranged in two groups.

[0011] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0012] 1、The upper grouting pipe and the lower grouting pipe are arranged, cement slurry in the reserved sleeve can be fully filled after the anchor rod construction is completed, the anchor rod can be placed in a closed space, water can be effectively prevented from entering the gap between the anchor rod and the hole wall, the safety and stability of the project are ensured, the anchor rod main body and the reserved sleeve are ensured to be located on the same axis by the limiting plug, and the installation accuracy of the anchor rod is ensured.

[0013] 2、The connecting base, the first threaded cylinder and the first internal hexagonal bolt are arranged, the connecting base can be fixed at a specified position outside the reserved sleeve by the friction between the first internal hexagonal bolt and the reserved sleeve, and the locking assembly is fixed.

[0014] 3、The control block and the sliding block are arranged, when the second internal hexagonal bolt drives the control block to move through the second threaded cylinder, the control block drives the two groups of sliding blocks to move outward simultaneously by the two inclined edges, the inside of the supporting plate is attached to the outside of the vertical steel bars, the locking base can be fixed between the two groups of vertical steel bars, the reserved sleeve can be conveniently fixed inside the reinforcement cage, and the convenience of the reserved sleeve structure is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1It is the whole structure schematic view of an embodiment of the utility model.

[0016] Figure 2 It is the whole structure schematic view of another embodiment of the utility model.

[0017] Figure 3 It is the outer surface structure schematic view of the utility model's reserved sleeve.

[0018] Figure 4 It is the connection structure schematic view of the utility model's connecting assembly and locking assembly.

[0019] Figure 5 It is the internal structure schematic view of the utility model's locking seat.

[0020] Figure 6 It is the structure schematic view of the utility model's supporting plate.

[0021] Figure 7 It is the A place enlarged structure schematic view of the utility model Figure 2 .

[0022] Mark explanation:

[0023] 1, reserved sleeve;101, water stop ring;102, anchor rod main body;103, sealing plate;104, limit plug;105, upper grouting pipe;106, lower grouting pipe;107, vertical plate;2, steel reinforcement cage;201, vertical reinforcement;202, stirrup;3, connecting assembly;301, connecting seat;302, first threaded cylinder;303, first inner hexagonal bolt;4, locking assembly;401, locking seat;402, second threaded cylinder;403, second inner hexagonal bolt;404, control block;405, sliding block;406, fixed column;407, supporting plate. Specific implementation

[0024] The embodiment of the utility model is further described in detail below in combination with the drawings and examples.

[0025] Example 1:

[0026] As shown in the accompanying Figure 1 , the utility model provides an underground continuous wall anchor rod reserved sleeve structure, including reserved sleeve 1, reserved sleeve 1 is round steel pipe, and reserved sleeve 1 is fixedly arranged in the steel reinforcement cage 2, and the outer side of reserved sleeve 1 is fixedly provided with water stop ring 101, and the anchor rod main body 102 is movably arranged in the reserved sleeve 1. The outer side of the bottom end of the reserved sleeve 1 is welded with the sealing plate 103, and the top end of the reserved sleeve 1 is welded with the limit plug 104, the limit plug 104 is provided with a through hole, and the anchor rod main body 102 is movably arranged in the through hole.

[0027] In the embodiment, the upper grouting pipe 105 is welded to the side of the reserved sleeve 1 facing upward, and the lower grouting pipe 106 is welded to the side of the reserved sleeve 1 facing downward, and the upper grouting pipe 105 and the lower grouting pipe 106 are both in communication with the inside of the reserved sleeve 1, the upper grouting pipe 105 and the lower grouting pipe 106 are both arranged in L shape, and the upper grouting pipe 105 and the lower grouting pipe 106 are symmetrically arranged.

[0028] In the embodiment, as shown in Figure 1 The vertical plate 107 is welded to the top end of the reserved sleeve 1, and the peripheral end of the vertical plate 107 is welded between the vertical reinforcement 201 and the stirrup 202, the vertical plate 107 is internally provided with a through hole, and the anchor rod body 102 is arranged in the through hole, the reserved sleeve 1 can be fixed to the inside of the reinforcement cage 2 through the vertical plate 107, the vertical plate 107 can prevent water from entering the reserved sleeve 1, and the anchor rod body 102 can be arranged in a closed space.

[0029] The upper grouting pipe 105 and the lower grouting pipe 106 are arranged, the inside of the reserved sleeve 1 can be fully filled with cement slurry after the construction of the anchor rod body 102 is completed, the anchor rod body 102 can be arranged in a closed space, water can be effectively prevented from entering the gap between the anchor rod and the hole wall, and the safety and stability of the project can be ensured.

[0030] Embodiment 2:

[0031] As Figures 2 to 7As shown in Embodiment 1, a connecting component 3 is fixedly installed on the outer side of the pre-reserved sleeve 1. The connecting component 3 includes a connecting seat 301, a first threaded cylinder 302, and a first internal hexagon bolt 303. The connecting seat 301 is movably installed on the outer side of the pre-reserved sleeve 1, and a locking component 4 is fixedly installed on the outer side of the connecting seat 301. The first threaded cylinder 302 is fixedly installed inside one side of the connecting seat 301. The first internal hexagon bolt 303 is threadedly connected inside the first threaded cylinder 302, and the end of the first internal hexagon bolt 303 is tightly fitted to the outer side of the pre-reserved sleeve 1. By providing the connecting seat 301, the first threaded cylinder 302, and the first internal hexagon bolt 303, the connecting seat 301 can be fixed at a designated position on the outer side of the pre-reserved sleeve 1 by utilizing the friction between the first internal hexagon bolt 303 and the pre-reserved sleeve 1.

[0032] Example 3:

[0033] like Figures 4 to 7 As shown, based on Embodiments 1 and 2, the locking assembly 4 includes: a locking seat 401, a second threaded cylinder 402, a second hexagon socket head cap screw 403, a control block 404, a sliding block 405, a fixing post 406, and a support plate 407. The locking seat 401 is fixedly disposed on the outside of the connecting seat 301, and the second threaded cylinder 402 is fixedly disposed inside one side of the locking seat 401. The second hexagon socket head cap screw 403 is threadedly disposed inside the second threaded cylinder 402. The control block 404 is slidably disposed inside the locking seat 401, and the control block 404 and the end of the second hexagon socket head cap screw 403 are rotatably connected, and the control block 404 is configured as an isosceles trapezoid. The sliding block 405 is slidably disposed inside both sides of the locking seat 401, and one side of the sliding block 405 is configured as a beveled structure, and the beveled side of the sliding block 405 is in contact with the beveled sides of the control block 404. The fixed column 406 is fixedly installed on the outside of the sliding block 405, and the support plate 407 is rotatably installed on the outside of the end of the fixed column 406, and the support plate 407 is set with an arc-shaped structure. The inner side of the support plate 407 is in contact with the outer side of the vertical steel bar 201, and the support plate 407, the fixed column 406, and the sliding block 405 are all symmetrically arranged in two sets. By setting the control block 404 and the sliding block 405, when the second hexagonal bolt 403 drives the control block 404 to move through the second threaded cylinder 402, the control block 404 uses its two inclined sides to drive the two sets of sliding blocks 405 to move outward at the same time; so that the inner side of the support plate 407 is in contact with the outer side of the vertical steel bar 201, thereby fixing the locking seat 401 between the two sets of vertical steel bars 201; and conveniently fixing the reserved sleeve 1 inside the steel cage 2.

[0034] The specific usage method of this embodiment is described below:

[0035] The utility model uses, places anchor rod main part 102 in the inside of reserved sleeve 1, and places spacing plug 104 in the outside of anchor rod main part 102, and respectively welds spacing plug 104 and sealing plate 103 in the both ends of reserved sleeve 1, so that spacing plug 104 limits anchor rod main part 102, makes reserved sleeve 1 and anchor rod main part 102 be located same axis. Then open hole on reserved sleeve 1, and the aperture is equivalent with the diameter of upper grouting pipe 105 and lower grouting pipe 106, then carry out careful welding operation to the contact part of upper grouting pipe 105 and lower grouting pipe 106 and reserved sleeve 1. During welding process, it is ensured that the weld is even, continuous and has no obvious porosity, crack and other defects, so that upper grouting pipe 105 and lower grouting pipe 106 are firmly connected on reserved sleeve 1, and form an integral structure. Then place connecting seat 301 in the outside of reserved sleeve 1, and tighten first inner hexagonal bolt 303, so that connecting seat 301 and locking seat 401 are fixed in the outside of reserved sleeve 1, and reserved sleeve 1 is placed in the inside of steel reinforcement cage 2 arranged in underground continuous wall in the form of inclination. Then rotate second inner hexagonal bolt 403, and second inner hexagonal bolt 403 drives control block 404 to move, and control block 404 drives two groups of sliding blocks 405 to slide outwards simultaneously by using two sides bevel, so that the inside of support plate 407 and the outside of vertical reinforcement 201 are attached, and then locking seat 401 and connecting seat 301 are fixed between two groups of vertical reinforcement 201, so that reserved sleeve 1 is fixed in the inside of steel reinforcement cage 2. By injecting cement slurry into the inside of reserved sleeve 1 through lower grouting pipe 106, when the cement slurry flows out from upper grouting pipe 105 evenly, and the flowed-out cement slurry has the consistency and flowability similar to that when pouring, it shows that the inside of reserved sleeve 1 has been filled with cement slurry fully, and a dense filling structure is formed, which effectively enhances the anchoring performance and overall stability of anchor rod main part 102, and also plays an auxiliary role of waterproofing.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A diaphragm wall anchor rod pre-cased structure, characterized by, The utility model relates to a kind of underground continuous wall steel reinforcement cage and anchor rod, including: Reserve sleeve (1) is fixedly arranged in underground continuous wall steel reinforcement cage (2) inside, water stop ring (101) is fixedly arranged outside the reserve sleeve (1), and anchor rod main body (102) is movably arranged in the reserve sleeve (1), the bottom end of the reserve sleeve (1) is welded with sealing plate (103), and the top of the reserve sleeve (1) is welded with limit plug (104), the limit plug (104) is provided with through-hole, and the anchor rod main body (102) is movably arranged in the through-hole; Wherein, the upper side of the reserve sleeve (1) towards upwards is welded with upper grouting pipe (105), and the lower side of the reserve sleeve (1) towards downwards is welded with lower grouting pipe (106), and the upper grouting pipe (105) and the lower grouting pipe (106) are connected with the inside of the reserve sleeve (1), the upper grouting pipe (105) and the lower grouting pipe (106) are all set as L-shaped, and the upper grouting pipe (105) and the lower grouting pipe (106) are symmetrically arranged.

2. The underground continuous wall anchor rod reserved sleeve structure according to claim 1, characterized in that: The central axis of the reserve sleeve (1) coincides with the central axis of the anchor rod main body (102), the upper grouting pipe (105) and the lower grouting pipe (106) all include the first pipe section perpendicular to the central axis of the reserve sleeve and the second pipe section parallel to the central axis of the reserve sleeve, and the second pipe section extends to the outside of the steel reinforcement cage (2).

3. The diaphragm wall anchor tube structure according to claim 2, wherein: The outside of the reserve sleeve (1) is fixedly provided with a connecting assembly (3), and the connecting assembly (3) comprises a connecting seat (301) movably arranged outside the reserve sleeve (1), and a locking assembly (4) fixedly arranged outside the connecting seat (301).

4. The diaphragm wall anchor tube structure according to claim 3, wherein: The connecting assembly (3) further comprises a first threaded cylinder (302) and a first inner hexagonal bolt (303), the first threaded cylinder (302) is fixedly arranged inside one side of the connecting seat (301), the first inner hexagonal bolt (303) is arranged inside the first threaded cylinder (302) through threaded connection, and the end of the first inner hexagonal bolt (303) is closely attached to the outside of the reserve sleeve (1).

5. The diaphragm wall anchor tube structure according to claim 4, wherein: The locking assembly (4) comprises a locking seat (401), a second threaded cylinder (402), a second inner hexagonal bolt (403) and a control block (404), the locking seat (401) is fixedly arranged outside the connecting seat (301), the second threaded cylinder (402) is fixedly arranged inside one side of the locking seat (401), the second inner hexagonal bolt (403) is arranged inside the second threaded cylinder (402) through threaded connection, the control block (404) is slidably arranged inside the locking seat (401), the control block (404) and the end of the second inner hexagonal bolt (403) are rotatably connected, and the control block (404) is set as isosceles trapezoidal.

6. The diaphragm wall anchor tube structure according to claim 5, wherein: The locking assembly (4) further comprises a sliding block (405), a fixed column (406) and a support plate (407), the sliding block (405) is slidingly arranged inside both sides of the locking seat (401), one side of the sliding block (405) is provided as a bevel structure, and the bevel of one side of the sliding block (405) is fitted with the bevels of both sides of the control block (404), the fixed column (406) is fixedly arranged outside the sliding block (405), the support plate (407) is rotatably arranged outside the end of the fixed column (406), the support plate (407) is provided as a circular arc structure, the inside of the support plate (407) is fitted with the outside of the vertical steel bars (201) of the reinforcement cage (2), and the support plate (407) and the fixed column (406) and the sliding block (405) are symmetrically arranged as two groups.

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