CN-117947785-B - Directional grouting plugging system

CN117947785BCN 117947785 BCN117947785 BCN 117947785BCN-117947785-B

Abstract

The invention discloses a directional grouting plugging system which comprises a plurality of anchor rods capable of grouting reinforcement in a slope body, wherein grouting flow channels are axially formed in the anchor rods, one ends of the anchor rods are inserted into the slope body and are provided with output ports for enabling slurry to be directionally injected into cracks in the slope body through the grouting flow channels, and the other ends of the anchor rods are provided with input ports for enabling the slurry to be input into the grouting flow channels. When the anchor rod is inserted on the slope body, the anchor rod and the slope body are locked and fixed through the positioning device, the invention adopts the positioning device additionally arranged on the anchor rod, the locking and fixing between the anchor rod inserted on the slope and the slope can be conveniently and efficiently realized, time and labor are saved, and the influence on the construction process of directional grouting to block the cracks in the slope is avoided.

Inventors

Zha Xiandong
ZHANG WEI
QIN FUGANG
WANG ZHIXIANG
WANG XINJIAN
WANG LIANG
CHENG JINLIANG
DAI TAO
Ben Shilian
CHEN YANG

Assignees

安徽省煤田地质局水文勘探队

Dates

Publication Date: 20260508
Application Date: 20240222

Claims (6)

1. The directional grouting plugging system is characterized by comprising a plurality of anchor rods capable of grouting and reinforcing a slope body, wherein grouting flow channels are axially formed in the anchor rods, one ends of the anchor rods are inserted into the slope body and are provided with output ports for enabling slurry to be directionally injected into cracks in the slope body through the grouting flow channels, and the other ends of the anchor rods are provided with input ports for enabling the slurry to be input into the grouting flow channels; The positioning device comprises a first cylinder body sleeved on the outer side of the anchor rod, one end of the first cylinder body is open, the other end of the first cylinder body is closed, at least one first butt joint rod is axially arranged, and a first butt joint groove is formed in the slope surface of the slope body; The first cylinder body is provided with an action mechanism, and when the first cylinder body is pressed on the slope body, the action mechanism can guide the first butt joint rod to be in threaded connection with the first butt joint groove; The action mechanism comprises a second limit groove axially arranged in the annular wall of the first cylinder body, a second limit block is slidably clamped in the second limit groove, a plug rod perpendicular to the moving direction of the second limit block is slidably inserted in the second limit block, a second cylinder body is rotatably inserted in the first cylinder body, the first butt joint rod is slidably clamped at one end of the second cylinder body, a second connecting rod is inserted at the other end of the second cylinder body, a third limit block is arranged outside the second connecting rod, a third limit groove which is in a spiral shape and is slidably clamped and matched with the third limit block is axially formed in the inner side wall of the second cylinder body, and a slot for inserting the plug rod is formed in one end of the second connecting rod; the action mechanism further comprises a first limit groove arranged in the first cylinder body, a first limit block is slidably clamped in the first limit groove, a first connecting rod perpendicular to the inserting rod is rotatably inserted into the first limit block, and one end of the inserting rod is rotatably sleeved at one end of the first connecting rod; The first limiting groove comprises a radial section, an arc section and an axial section which are connected in sequence, and the radial section is positioned at one side of the first limiting groove far away from the slope surface; a swing rod is rotatably arranged in the first cylinder, a fourth limiting groove is axially formed in the outer side of the swing rod, a fourth limiting block is slidably clamped in the fourth limiting groove, and the fourth limiting block is rotatably sleeved on the outer side of the first connecting rod; the outer side of the first cylinder body is sleeved with a ring body through threads, a third connecting rod is radially arranged on the inner side of the ring body, a rack axially parallel to the first cylinder body is arranged at the centripetal end of the third connecting rod, and a gear matched with the rack is concentrically fixed at the swinging center of the swinging rod; the swing rod and the gear are inserted and fixed on the same worm, a third cylinder is radially inserted in the inner peripheral side of the first cylinder in a rotating way, a second butt joint rod is slidably clamped at the centripetal end of the third cylinder, a second butt joint groove in threaded connection with the second butt joint rod is formed in the outer side wall of the anchor rod in advance, and a worm wheel matched with the worm is arranged at the centrifugal end of the third cylinder.
2. The directional grouting plugging system of claim 1, wherein the slope is pre-formed with anchor holes for the insertion of the anchor rods.
3. The directional grouting plugging system of claim 1, wherein the other end of the anchor rod is provided with a protective sleeve which closes the grouting flow path inlet.
4. A directional grouting plugging system according to claim 3, wherein the bolt is threadably connected to the protective sleeve.
5. The directional grouting plugging system of claim 1, wherein a first spring is disposed between the first butt joint rod end and the second barrel inner wall.
6. The directional grouting plugging system of claim 1, wherein the plug rod is inserted into the slot by guiding the first limiting block to move on the first limiting groove from one end far away from the slope to the other end, and then the slot is driven to move together towards the slope by the plug rod.

Description

Directional grouting plugging system Technical Field The invention relates to the technical field of grouting, in particular to a directional grouting plugging system. Background The grouting water shutoff technology has become an important and effective means for preventing and controlling water in coal mines in the 80 th century. Many coal industry groups establish specialized grouting teams for treating various water damage or poor rock mass of mines, and are used for pre-grouting and sinking, well wall or post-wall grouting, water burst blocking of well and chambers, water sealing and reinforcing of soft rock or soft soil and treatment of oversized water penetration or well flooding accidents. After water damage occurs in the coal mine, conventional grouting drilling can be constructed after water bursting points, water bursting sources and water bursting channels of the mine are known, and after aggregate is put in, the prepared slurry is pressed into gaps, cracks or tunnels of underground rock stratum to be forced to be diffused, solidified and hardened, so that the rock stratum has higher strength, compactness and water impermeability, and the functions of blocking and cutting off the water supplying sources and reinforcing the water-resisting layer are achieved. The working principle of the directional grouting plugging system is to realize the consolidation of soil or rock, reinforcement or improvement of engineering geological conditions by injecting specific grouting materials into the underground space to be filled or plugged. The grouting material may be cement slurry, polymer, resin, etc., with the specific choice depending on the desired engineering requirements and geological conditions. Before grouting, after the anchor rod is inserted into an anchor hole of a side slope, the anchor rod inserted into the anchor hole is mostly positioned and fixed on the side slope in a mode of manually screwing screws one by one so as to ensure that grouting operation is carried out on a slope body subsequently. The method is time-consuming and labor-consuming, is quite inconvenient, has lower construction efficiency, and affects the construction process of directional grouting to block cracks in the slope. Disclosure of Invention In order to solve the technical problems in the background art, the invention provides a directional grouting plugging system. The directional grouting plugging system comprises a plurality of anchor rods capable of grouting and reinforcing a slope body, wherein grouting flow channels are axially formed in the anchor rods, one ends of the anchor rods are inserted into the slope body and are provided with output ports for enabling slurry to be directionally injected into cracks in the slope body through the grouting flow channels, the other ends of the anchor rods are provided with input ports for enabling the slurry to be input into the grouting flow channels, and when the anchor rods are inserted into the slope body, the anchor rods and the slope body are locked and fixed through a positioning device. As a further improvement of the scheme, an anchor hole for inserting the anchor rod is formed in the slope body in advance. As a further improvement of the scheme, the other end of the anchor rod is provided with a protective sleeve which can seal the input port of the grouting runner. As a further improvement of the scheme, the anchor rod is connected with the protective sleeve through threads. As a further improvement of the scheme, the positioning device comprises a first cylinder body sleeved outside the anchor rod, one end of the first cylinder body is open, the other end of the first cylinder body is closed, at least one first butt joint rod is axially arranged, a first butt joint groove is formed on the slope surface of the slope body, The first cylinder body is provided with an actuating mechanism, and when the first cylinder body is pressed on the slope body, the actuating mechanism can guide the first butt joint rod to be in threaded connection with the first butt joint groove. As a further improvement of the scheme, the actuating mechanism comprises a second limit groove axially arranged in the annular wall of the first cylinder body, a second limit block is arranged in the second limit groove in a sliding manner, an inserting rod perpendicular to the moving direction of the second limit block is inserted in the second limit groove in a sliding manner, a second cylinder body is inserted in the first cylinder body in a rotating manner, the first butt joint rod is slidably clamped at one end of the second cylinder body, a second connecting rod is inserted at the other end of the second cylinder body, a third limit block is arranged outside the second connecting rod, a third limit groove which is in a spiral shape and is in sliding clamping fit with the third limit block is formed in the inner side wall of the second cylinder body along the axial direction of the second limi