Construction method for penetrating existing pipeline below super shallow buried tunnel shield

A technology of tunnel shield and construction method, which is applied in tunnels, earth-moving drilling, mining equipment, etc., to achieve the effect of reasonable parameters and control of land subsidence

Active Publication Date: 2017-05-31
SHIJIAZHUANG TIEDAO UNIV
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many scholars have also conducted a lot of research on the settlement law in the tunnel construction process, but there are relatively few studies on how to reduce or even avoid construction settlement deformation during tunnel shield construction in the soft strata along the southeast coast

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
  • Construction method for penetrating existing pipeline below super shallow buried tunnel shield
  • Construction method for penetrating existing pipeline below super shallow buried tunnel shield
  • Construction method for penetrating existing pipeline below super shallow buried tunnel shield

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052]The present invention is based on the background of the construction of the Gongbei-Hengqin section of the tunnel between Zhuhai City and Zhuhai Airport Intercity Rail Transit Project, which passes through the water supply pipes for Australia. The pre-piercing construction test was carried out, and the settlement was monitored in real time to determine the optimal grouting parameters and tunneling parameters. Then, according to these parameters, the shield tunneling construction of the water supply pipeline under the water supply to Australia was carried out. During the whole process, a set of ultra-shallow buried Deformation control technology for shield tunnel passing through existing pipeline construction.

[0053] The newly built Zhuhai urban area to Zhuhai Airport intercity rail transit project Gongbei-Hengqin section shield tunnel passes through the water supply pipe for Australia. The surrounding rock of the tunnel is weak soil layer, and the concrete water pipe fo...

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 relates to a construction method for penetrating an existing pipeline below a super shallow buried tunnel shield. The construction method is characterized by including: constructing according to local settlement control standards, pre-penetrating experiment grouting parameters and construction tunneling parameters, namely reinforcing the ground surface of the existing pipeline, arranging monitoring point locations, and conducting a pre-penetrating pipeline construction experiment, wherein the pre-penetrating experiment is conducted in two steps, including step 1, conducting the pre-penetrating experiment when a notch ring reaches 73-75 rings of the pipeline to acquire reasonable grouting parameters and tunneling parameters, and step 2, conducting the pre-penetrating experiment when the notch ring reaches 76-78 rings of the pipeline to re-optimize acquired parameters to enable the same to be more reasonable; grouting before the experiment is proceeded each time.

Description

technical field [0001] The invention relates to a construction method for an ultra-shallow buried tunnel passing through an existing pipeline under a shield. Background technique [0002] With the increasing development of my country's economy, the population of large and medium-sized cities is increasing, and the traffic pressure within the city is also increasing. my country's high-speed rail network has basically met the current domestic passenger flow needs. The country's next development plan will It is the construction of urban rail transit. At present, large cities such as Beijing, Guangzhou, Shanghai, and Shenzhen have built a large number of urban rail transit lines, and some second-tier provincial capital cities such as Shijiazhuang, Taiyuan, and Harbin have also begun to plan and build subways. The subway is the window of a city. It is safe, punctual, humanistic, and technological. It plays an irreplaceable role in effectively relieving the traffic pressure in the...

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 Applications(China)
IPC IPC(8): E21D9/00E21D9/06E21D9/08
CPCE21D9/001E21D9/003E21D9/0607E21D9/08
Inventor 黄君杨旺兴杨志浩张卫国贾宁刘唐范宇张辉吴芙蓉
Owner SHIJIAZHUANG TIEDAO UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap