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

Consolidated grouting method for anchoring cement of bedrock contact segment

A technology of consolidation grouting and cement grouting, which is applied in the direction of basic structure engineering, construction, etc., can solve the problems of increasing project investment in the overall construction progress, increasing the amount of cement consolidation grouting concrete drilling, etc., to reduce the amount of drilling engineering, The effect of reducing input costs

Inactive Publication Date: 2009-09-23
李旺雷
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Consolidation cement grouting in the bedrock contact section to ensure that the concrete on the contact surface will not be fractured and lifted. The required grouting pressure is balanced by the weight of the concrete, so there must be sufficient concrete thickness to ensure that, which leads to a substantial increase in cement consolidation grouting The amount of concrete drilling work has become a very prominent contradiction that restricts the overall construction progress of large-scale projects, especially large-scale hydropower stations, and greatly increases project investment.

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
  • Consolidated grouting method for anchoring cement of bedrock contact segment
  • Consolidated grouting method for anchoring cement of bedrock contact segment
  • Consolidated grouting method for anchoring cement of bedrock contact segment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] (1) After the drilling rig drills through the concrete cover plate of the contact surface, one grouting hole is completed at a time.

[0015] (2) According to the segmental requirements of grouting, the process of segmental grouting from top to bottom, install the combined grouting steel pipe, fine sand bag grouting divider and filter bag type grouting segmental packer in segments, and use water filter The grouting anchoring method is to anchor the combined grouting steel pipe on the concrete weight cover plate. The combined grouting steel pipe used here is a thicker steel pipe, preferably a 2-inch pipe covering a thinner steel pipe, preferably a 1-inch steel pipe. The length of the 2-inch pipe is from the grouting hole to the contact section beyond the bedrock (the first section from the bottom of the hole is the bedrock contact section), and the device for anchoring the combined grout pipe to the concrete slab simultaneously The role of grout blocking. Install the be...

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 provides a consolidated grouting method for anchoring cement of a bedrock contact segment. The biggest characteristic of the method comprises the following steps of: anchoring the combined incoming-slurry steel pipe which can bear anchor action on the upper end and the lower end of the contact segment by applying a water-filter-type mud-jack anchoring method and a one-through pore-forming and a new technology of descending stage grouting; and balancing the upthrust force of the consolidated grouting pressure by anchor acting force generated by the combined incoming slurry, thus reducing the thickness of concrete boards, effectively solving the contradictions that large-scale engineering construction progress is restricted and the construction cost is greatly lowered, realizing the construction efficiency of multiply improving cement consolidated grouting, greatly accelerating the construction progress, and more beneficially promoting the completion of the overall construction progress plan.

Description

technical field [0001] The invention relates to an anchoring type cement consolidation grouting method for a bedrock contact section. Background technique [0002] Consolidation cement grouting in the bedrock contact section to ensure that the concrete on the contact surface will not be fractured and lifted. The required grouting pressure is balanced by the weight of the concrete, so there must be sufficient concrete thickness to ensure that, which leads to a substantial increase in cement consolidation grouting The amount of concrete drilling work has become a very prominent contradiction that restricts the overall construction progress of large-scale projects, especially large-scale hydropower stations, and greatly increases project investment. Contents of the invention [0003] In order to solve the above problems, the present invention adopts the following method to carry out the anchored cement consolidation grouting of the bedrock contact section, and its main featur...

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
IPC IPC(8): E02D15/04
Inventor 李旺雷
Owner 李旺雷
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