Grouting anchor rod for geotechnical engineering construction
A technology of grouting bolts and geotechnical engineering, which is applied to the installation of bolts, earthwork drilling, mining equipment, etc., can solve the problems of affecting the stability of grout blocks, affecting the reinforcement effect of bolts, and the leakage of grout, so as to prevent Good seepage and use effect, increase anti-seepage effect, increase sealing effect
Inactive Publication Date: 2021-02-12
胡胜召
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Problems solved by technology
[0002] During the construction process of underground engineering, mining engineering, foundation pit and slope engineering involved in geotechnical engineering, in order to prevent the formation from deforming, collapsing or destabilizing and endangering safety, it is necessary to reinforce the formation. Grouting bolts use the high-strength tensile capacity of the grouting bolts installed in the formation, and the solid combination between the bolt body and the grouting body around the bolt body and the formation is used to strengthen the formation. Improve the integrity of the formation, control the deformation of the formation, and make it reach a stable and safe state; however, when the existing grouting bolt is used, especially in the process of grouting, due to the high pressure of the grout, it is easy to appear The situation of extravasation affects the reinforcement effect of the anchor rod, and when the existing grouted anchor rod is in use, the structure of the anchor head at the anchor end is relatively simple, thus affecting the stability of the connection between it and the grout block; therefore , in order to solve the above problems, it is necessary to develop a grouting bolt for geotechnical engineering construction with good anti-seepage and good use effect and high overall stability.
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[0018] Example: such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, a grouting anchor for geotechnical engineering construction includes an anchor head 1 and a hollow anchor body 2. One end of the anchor head 1 is tapered, and the other end is threaded on the hollow anchor body 2 and is located in the anchor hole. On the outside of one end of the anchor head 1, the middle position of the anchor head 1 is evenly provided with a plurality of draw-in slots 11 in a ring shape. The draw-in slots 11 are provided with a block 12. The block 12 is fan-shaped, and the two sides at the center are both A rotating shaft is fixedly arranged, and is connected with the inner groove wall of the card slot 11 through the rotating shaft; the outer surface of the hollow anchor rod body 2 is provided with threads, and the outer surface at one end of the anchor hole is uniformly provided with injection holes along its length direction. Grouting holes 21 and grouting pipes 2...
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The invention relates to a grouting anchor rod for geotechnical engineering construction. One end of an anchor head is conical, the other end of the anchor head is arranged on the outer portion of a hollow anchor rod body in a threaded sleeving manner, multiple clamping grooves are annularly and evenly formed in the anchor head, and clamping blocks are rotationally arranged in the clamping grooves. Threads are arranged on the outer surface of the hollow anchor rod body, grouting holes are formed in the outer surface of the end, located in an anchor hole, of the hollow anchor rod body, the outer surface of the end, located on the outer portion of the anchor hole, of the hollow anchor rod body is sequentially sleeved with a grout stopping plug, a fixed plate, a base plate and a fixed nut, the grout stopping plug is made of a rubber material and is integrally in a circular table shape, the fixed plate is located on the outer side of the grout stopping plug and is located on the outer portion of the anchor hole, a clamping ring is fixedly arranged in the center of the side, close to the grout stopping plug, of the fixed plate, and an adjusting nut is fixedly arranged in the center of the other side of the fixed plate and is in threaded connection with the hollow anchor rod body. The base plate is located on the outer side of the fixed plate, a groove is formed in the center of thebase plate, and the fixed nut is located on the outer side of the base plate and is in threaded connection with the hollow anchor rod body. The grouting anchor rod has the advantages of good anti-seepage effect and using effect and high overall stability.
Description
technical field [0001] The invention belongs to the technical field of geotechnical engineering support construction, and in particular relates to a grouting anchor rod for geotechnical engineering construction. Background technique [0002] During the construction process of underground engineering, mining engineering, foundation pit and slope engineering involved in geotechnical engineering, in order to prevent the formation from deforming, collapsing or destabilizing and endangering safety, it is necessary to reinforce the formation. Grouting bolts use the high-strength tensile capacity of the grouting bolts installed in the formation, and the solid combination between the bolt body and the grouting body around the bolt body and the formation is used to strengthen the formation. Improve the integrity of the formation, control the deformation of the formation, and make it reach a stable and safe state; however, when the existing grouting bolt is used, especially in the pro...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21D21/00E21D20/02
CPCE21D20/02E21D21/0026
Inventor 胡胜召李龙许伟杰王志合
Owner 胡胜召