Blocking device for assisting secondary grouting of anchor cable

Abstract

The utility model discloses a blocking device for assisting secondary grouting of an anchor cable, which is arranged at an orifice of an anchor cable hole and comprises a flexible backing plate and a fixing plate arranged on the flexible backing plate, a grouting pipe through hole is arranged at the center of the flexible backing plate, anchor cable through holes are arranged around the grouting pipe through hole, and a first slurry leakage hole is further arranged on the flexible backing plate; the fixing plate is provided with a center through hole and a second slurry leakage hole corresponding to the first slurry leakage hole in position, and the grouting pipe penetrating hole and the anchor cable penetrating hole are correspondingly formed in the center through hole. The anchor cable hole plugging device is ingenious in structure and low in cost, under the condition that normal work of an anchor cable and a grouting pipe is not affected, hole opening plugging of a foundation pit side slope anchor cable hole can be achieved, whether the hole is filled with cement paste or not is judged through the grout leakage hole, therefore, secondary grouting work of the anchor cable hole reaches a one-time overflow state, repeated grout supplementing work of conventional construction is avoided, and the construction efficiency is improved. The secondary grouting efficiency of the anchor cable hole is greatly improved, and the construction time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor cable construction, in particular to a blocking device for secondary grouting of auxiliary anchor cables. Background Art

[0002] In foundation pit support, prestressed anchor cables are usually installed on the slope of the foundation pit. The prestressed effect of the anchor cables can enhance the overall stability of the support structure and resist the potential impact of external forces on the foundation pit. In order to improve the anchoring effect of the anchor cables and strengthen the stability between the anchor cables and the foundation, secondary grouting is required in the anchor cable holes. Most of the above-mentioned anchor cable holes extend downward from the slope of the foundation pit. During the secondary grouting, the slurry cannot reach an overflowing state in one time and can only be level with the horizontal plane of the bottom of the hole. Therefore, after the secondary grouting is completed, it is necessary to wait for the cement slurry to initially set and then perform multiple grouting until the anchor cable hole is overflowing. The above-mentioned grouting process is time-consuming and cumbersome to operate, which has a great impact on subsequent construction. Summary of the Invention

[0003] In order to solve the above problems, the utility model provides a blocking device for auxiliary anchor cable secondary grouting, which can specifically adopt the following technical solutions:

[0004] The sealing device for secondary grouting of auxiliary anchor cables described in the utility model is arranged at the mouth of the anchor cable hole, and includes a flexible pad and a fixed plate arranged thereon. A grouting pipe perforation is provided at the center of the flexible pad, and anchor cable perforations are provided around the grouting pipe perforation. A first leakage hole is also provided on the flexible pad; a central through hole and a second leakage hole corresponding to the position of the first leakage hole are provided on the fixed plate, and the grouting pipe perforation and the anchor cable perforation are both correspondingly provided in the central through hole.

[0005] The flexible pad is a rubber plate, the diameter of which is larger than the diameter of the hole of the anchor cable.

[0006] The anchor cable holes are evenly arranged around the grouting pipe holes.

[0007] The outer diameter of the fixing plate is adapted to the diameter of the hole of the anchor cable, and the fixing plate is formed by connecting a left plate and a right plate through a locking mechanism.

[0008] The locking mechanism is provided in two sets, each set including a latch lock buckle provided on the left plate, and a socket provided on the right plate and adapted to the latch lock buckle.

[0009] The first grouting hole is arranged outside the anchor cable through-hole and is a notch structure extending to the edge of the flexible pad; the second grouting hole is arranged at the connection between the left plate and the right plate.

[0010] The sealing device for auxiliary anchor cable secondary grouting provided by the utility model has an ingenious structure and low cost. It can seal the hole opening of the anchor cable hole on the slope of the foundation pit without affecting the normal operation of the anchor cable and the grouting pipe, and judge whether the hole is filled with cement slurry through the leakage hole, so that the secondary grouting of the anchor cable hole can reach an overflowing state in one time, avoiding the multiple grouting work of conventional construction, greatly improving the efficiency of the secondary grouting of the anchor cable hole, shortening the construction time, and ensuring the smooth progress of the overall project construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] Figure 2 This is a usage state diagram of the utility model.

[0013] Figure 3 yes Figure 1 Schematic diagram of the structure of the flexible pad.

[0014] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle fixed plate. DETAILED DESCRIPTION

[0015] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented based on the technical solution of the present invention, and a detailed implementation method and specific working process are given. However, the protection scope of the present invention is not limited to the following embodiment.

[0016] like Figure 1-4 As shown, the blocking device for auxiliary anchor cable secondary grouting of the present invention is arranged at the opening of the anchor cable hole K, and includes a flexible pad 1 and a fixing plate 2 arranged thereon.

[0017] The flexible pad 1 is used to cover the anchor hole K, so its diameter is larger than the diameter of the hole of the anchor hole K. In this embodiment, the flexible pad 1 is made of a rubber plate, a grouting pipe perforation 11 is provided at the center, anchor perforations 12 are provided around the grouting pipe perforation 11, and a first grouting hole 13 is also provided on the flexible pad 1. The number of the above-mentioned anchor perforations 12 corresponds to the number of anchor cables in the anchor hole K. In this embodiment, there are three anchor cables, so three anchor perforations 12 are correspondingly provided on the flexible pad 1, and the three anchor perforations 12 are evenly distributed along the circumference. The first grouting hole 13 is provided on the outside of the anchor perforation 12 and is a notch structure extending to the edge of the flexible pad 1.

[0018] The fixing plate 2 is made of a steel plate, and its outer diameter is adapted to the diameter of the opening of the anchor hole K. After being installed on the flexible pad 1, it is clamped at the opening of the anchor hole K to fix the position of the flexible pad 1. In order to facilitate installation, the fixing plate 2 adopts a splicing structure, including a left plate 21, a right plate 22 and a locking mechanism 23 connecting the two. After the left plate 21 and the right plate 22 are spliced and connected, a circular ring structure with a gap is formed. Among them, the grouting pipe perforation 11 and the anchor perforation 12 of the flexible pad 1 are both correspondingly arranged in the central through hole of the fixing plate 2, and the first grouting hole 13 of the flexible pad 1 corresponds to the notch of the fixing plate 2. The notch of the fixing plate 2 is the second grouting hole. The above-mentioned locking mechanism 23 is two sets, each set includes a latch lock buckle arranged on the left plate 21, and a socket arranged on the right plate 22 that is adapted to the latch lock buckle.

[0019] Before performing secondary grouting, first pass the grouting pipe through the grouting pipe perforation 11 in the center of the flexible pad 1, and then pass the anchor cables in the anchor cable holes K through the anchor cable perforations 12 of the flexible pad 1 one by one. Afterwards, push the flexible pad 1 toward the anchor cable holes K until the flexible pad 1 covers the area around the anchor cable holes K. Next, place the left plate 21 and the right plate 22 of the fixing plate 2 on top of the flexible pad 1 and secure them around the anchor cables through the locking mechanism 23. The second grouting hole should correspond to the first grouting hole 13 of the flexible pad 1. Afterwards, push the fixing plate 2 toward the anchor cable hole K until it is secured to the opening of the anchor cable hole K, thereby fixing the position of the flexible pad 1. Finally, grouting is performed on the anchor hole K through the grouting pipe. During this process, attention is paid to the first leakage hole 13 and the second leakage hole. When cement slurry overflows, it indicates that the anchor hole K is filled with slurry. At this time, grouting is stopped, and then the locking mechanism 23 is released, the fixed plate 2 and the flexible pad 1 are removed, and the grouting work is completed.

[0020] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

Claims

1. A blocking device for secondary grouting of auxiliary anchor cables, characterized by: It is arranged at the mouth of the anchor hole, including a flexible pad and a fixed plate arranged thereon, a grouting pipe perforation is arranged at the center of the flexible pad, anchor perforations are arranged around the grouting pipe perforation, and a first leakage hole is also arranged on the flexible pad; a central through hole and a second leakage hole corresponding to the position of the first leakage hole are provided on the fixed plate, and the grouting pipe perforation and the anchor perforation are both correspondingly arranged in the central through hole.

2. The blocking device for secondary grouting of auxiliary anchor cables according to claim 1, characterized in that: The flexible pad is a rubber plate, the diameter of which is larger than the diameter of the hole of the anchor cable.

3. The blocking device for secondary grouting of auxiliary anchor cables according to claim 1, characterized in that: The anchor cable holes are evenly arranged around the grouting pipe holes.

4. The blocking device for secondary grouting of auxiliary anchor cables according to claim 1, characterized in that: The outer diameter of the fixing plate is adapted to the diameter of the hole of the anchor cable, and the fixing plate is formed by connecting a left plate and a right plate through a locking mechanism.

5. The blocking device for secondary grouting of auxiliary anchor cables according to claim 4, characterized in that: The locking mechanism is provided in two sets, each set including a latch lock buckle provided on the left plate, and a socket provided on the right plate and adapted to the latch lock buckle.

6. The blocking device for secondary grouting of auxiliary anchor cables according to claim 4, characterized in that: The first grouting hole is arranged outside the anchor cable through-hole and is a notch structure extending to the edge of the flexible pad; the second grouting hole is arranged at the connection between the left plate and the right plate.

Images