Piston-type cementing anchoring device for drilling multi-point displacement meter
An anchoring device and displacement meter technology, applied in the field of geotechnical engineering, can solve the problems of easy deformation of drilling holes, discounted anchoring effect, complex structure, etc., and achieve the effects of enhancing anchoring effect, avoiding waste of resources, and large storage space
Active Publication Date: 2020-02-07
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The grouting type anchoring device uses the grouting method to fix the anchoring device and the surrounding rock mass. After the grouting is completed, the anchoring end and the rock mass can be completely cemented to form a whole. However, the anchoring effect of this anchoring form is limited by the fullness of the grouting. Issues and Environmental Factors
The anchoring device of the shrapnel type, that is, the inverted claw structure, has the advantages of simple process and low manufacturing cost. However, the anchoring force provided by the contact between the shrapnel and the rock mass is limited, and the drilling hole is easily deformed during long-term testing, which makes the anchoring effect Great discount, resulting in unreliable measurement data
The hydraulic anchoring device has good anchoring effect and is not restricted by the environment, but its structure is complex, installation is difficult, and it requires high manufacturing technology, making the test cost much higher than other anchoring forms
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] like figure 1 and figure 2 As shown, a piston-type cemented anchoring device for a drilling multi-point displacement meter includes an outer cylinder assembly, the outer cylinder assembly includes an outer cylinder 1, and a sealing ring is set at both ends of the outer cylinder, the sealing ring is an annular rubber ring 7, The annular rubber ring is vertically sleeved on the side of the outer cylinder, and the outer diameter of the annular rubber ring after fixing is 2-4 mm larger than the diameter of the drilling hole. Ensure that the annular rubber ring is in full contact with the drilling surface, so that the rubber ring, the side of the outer cylinder and the drilling surface form a closed space to avoid leakage after the adhesive in the inner cavity is discharged. A piston 7 is arranged inside the outer cylinder, and the piston 7 is installed on a hollow tie rod. The hollow tie rod is a hollow tie rod 3. The hollow tie rod passes through the pull rod through hol...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A piston-type cementing anchoring device for a drilling multi-point displacement meter comprises an outer cylinder component that includes an outer cylinder, wherein sealing rings are sleeved at two ends of the outer cylinder, a piston is arranged in the outer cylinder and is installed on a hollow pull rod, the hollow pull rod protrudes from the end of the outer cylinder and is connected to a steel wire, the end of the outer cylinder corresponding to the steel wire is provided with a glue injection hole that is provided with a glue injection hole cover, several glue discharge holes are uniformly arranged around the outer cylinder, a glue discharge holes cover is disposed on the glue discharge holes, and a reset device is provided between the glue discharge hole cover and the outer cylinder. The piston-type cementing anchoring device is simple in structure, low in cost, high in anchoring strength, and is not easy to be restricted by the environment.
Description
technical field [0001] The invention belongs to the technical field of geotechnical engineering, and is suitable for in-situ measurement of the displacement of deep rock formations in rock mass engineering, and specifically relates to an anchoring device of a multi-point displacement meter for drilling, which provides accurate information for on-site construction and monitoring and early warning. Background technique [0002] Borehole multi-point displacement gauge is widely used in geotechnical engineering, and it is an in-situ measuring device for monitoring the movement and displacement of rock and soil inside the borehole. The multi-point displacement gauge for drilling is mainly composed of anchoring device in the hole, measuring line and monitoring device outside the hole. During the on-site measurement test, first connect the anchoring device to the measuring line and use the push rod to send it into the designated position in the borehole for anchoring. Movement rul...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01B21/02
CPCG01B21/02
Inventor 石艳柯侯荣彬张多新许雷阁
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER