Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method of implanting optical fibers for testing the internal force of cast-in-situ piles using acoustic measuring tubes

A technology of acoustic measuring tube and cast-in-place pile, which is applied in the direction of sheet pile wall, foundation structure test, construction, etc., can solve the problems of increasing the interval time of cast-in-place concrete and increasing the collapse of pile holes.

Active Publication Date: 2021-02-26
CHINA JK INST OF ENG INVESTIGATION & DESIGN
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the installation of optical fiber is often carried out during the hoisting process of cast-in-place pile construction. Specifically, when the steel cage is lowered, the optical fiber is inserted into the steel cage, laid along with the main reinforcement, and fixed at intervals. The cross effect is serious, which greatly increases the interval time from the hole formation of the cast-in-situ pile to the pouring of concrete, and increases the risk of pile hole collapse

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method of implanting optical fibers for testing the internal force of cast-in-situ piles using acoustic measuring tubes
  • A method of implanting optical fibers for testing the internal force of cast-in-situ piles using acoustic measuring tubes
  • A method of implanting optical fibers for testing the internal force of cast-in-situ piles using acoustic measuring tubes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0066] like Figure 1 to Figure 3 A method for implanting an optical fiber for testing the internal force of a cast-in-situ pile by using an acoustic measuring tube includes the following steps:

[0067] Step 1. Production of optical fiber implanter:

[0068] Step 101, connect the fiber guide rod 1, the fiber optic swivel section 2 and the bottom hammer head 3 sequentially from top to bottom; wherein, the diameter of the fiber swivel section 2 is smaller than the diameter of the fiber guide rod 1, and the fiber guide rod 1, fiber swivel section 2 and the bottom hammer head 3 are integrally formed;

[0069] Step 102, setting two symmetrically arranged guide grooves 4 on the optical fiber guide rod 1 to obtain an optical fiber implanter;

[0070] Step 2, the connection of the wire rope and the optical fiber implanter and the winding of the optical fiber:

[0071] Step 201, install the suspension ring 5 on the upper end of the fiber guide rod 1;

[0072] Step 202, install the...

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

No PUM Login to View More

Abstract

The invention discloses a method for implanting an optical fiber for testing the internal force of a cast-in-situ pile by using an acoustic measuring tube. The method includes the following steps: 1. Manufacturing an optical fiber implanter; Winding; 3. Binding of optical fibers; 4. Grouting of acoustic tubes; 5. Hanging of optical fibers; Step 6. Repeat steps 1 to 5 to complete the implantation of optical fibers in another acoustic tube. The invention is reasonable in design, has little influence on the construction of cast-in-place piles, ensures accurate strain testing of cast-in-place piles, and facilitates the analysis of the internal force of cast-in-place piles in the follow-up.

Description

technical field [0001] The invention belongs to the technical field of fiber optic implantation in cast-in-situ piles, and in particular relates to a method for implanting optical fibers for testing the internal force of cast-in-place piles by using an acoustic measuring tube. Background technique [0002] In recent years, distributed optical fiber technology has been applied to test the internal force of cast-in-situ piles. The distributed optical fiber method belongs to the line measurement method, which can obtain the strain values ​​along different depths of the pile body to obtain the internal force. Compared with the steel bar meter method, the test data is more, and it can better reflect the continuous strain change law of the pile body, and has broad application prospects. At present, the installation of optical fiber is often carried out during the hoisting process of cast-in-place pile construction. Specifically, when the steel cage is lowered, the optical fiber is...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00E02D5/34
CPCE02D5/34E02D33/00E02D2250/0023
Inventor 于永堂张龙郑建国刘争宏黄晓维
Owner CHINA JK INST OF ENG INVESTIGATION & DESIGN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com