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

Tunnel secondary lining concrete construction simulation system and simulation method

A technology of secondary lining and simulation system, applied in the direction of tunnel lining, tunnel, wellbore lining, etc., to achieve the effect of ensuring durability performance, comprehensive evaluation indicators, and ensuring normal operation

Pending Publication Date: 2021-12-28
LANZHOU UNIVERSITY OF TECHNOLOGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems existing in the evaluation of secondary lining concrete in the prior art, and provide a tunnel secondary lining concrete construction simulation system and simulation method.

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
  • Tunnel secondary lining concrete construction simulation system and simulation method
  • Tunnel secondary lining concrete construction simulation system and simulation method
  • Tunnel secondary lining concrete construction simulation system and simulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: A test was carried out with medium-fluidity lining concrete, and the concrete slump was 22.5 cm.

[0045] A tunnel secondary lining concrete construction simulation method, comprising the following steps:

[0046] Step 1: Brush a layer of oil or release agent inside the inner arch formwork 2 and the outer arch formwork 1, and then fasten the inner and outer formworks with bolts and nuts.

[0047] Step 2: Divide the concrete into two parts. After one part is mixed, the arch waist pouring stage is performed, and timing is performed. During pouring, pouring is performed from the pouring port 4 of the outer arch formwork 1 .

[0048] Step 3. After the pouring is completed, record the pouring time of the arch waist pouring stage, (such as Figure 5 ) and turn on the attached micro-vibrator 7 to vibrate the concrete, and observe the flow of the concrete from the observation port 5, stop vibrating when the concrete liquid level reaches the Figure 6 ).

[0049] Ste...

Embodiment 2

[0052] Example 2: A test was carried out using traditional lining concrete, and the concrete slump was 17cm.

[0053] The steps are the same as the above steps. After the concrete pouring is completed, export the data of the data collector, close the data collector, and obtain the pressure changes of the templates at each test point during the pouring process through data processing. ( Figure 8 , Figure 10 , Figure 12 )

[0054] Topographic photographs of conventionally lined concrete surfaces (e.g. Figure 14 , Figure 15 , Figure 16 , Figure 19 ),right Figure 19 Perform binarization analysis. (Such as Figure 20 )

[0055] The pouring and vibrating time, the pressure change of the lining formwork and the surface appearance of the lining concrete after hardening were used to evaluate the flow and filling effect of the lining concrete at different positions of the vault and the arch waist in the inner arch formwork 2 Performance of secondary lining concrete. ...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Slumpaaaaaaaaaa
Slumpaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of road building materials, and discloses a tunnel secondary lining concrete construction simulation system and simulation method. The technical problems existing in secondary lining concrete evaluation in the prior art are solved. The tunnel secondary lining concrete construction simulation system comprises an inner-layer arched formwork, an outer-layer arched formwork, a pouring opening, an observation opening, a gravity sensor, a micro vibrator, a data collector and a transformer. According to the method, the flowing condition and the filling effect of lining concrete in different positions such as an arch crown and a haunch in the formwork in the pouring process can be accurately simulated. According to the method, the construction performance of the lining concrete in the pouring construction process is evaluated through the three indexes of the pouring and vibrating time, the lining formwork pressure intensity change and the surface appearance of the hardened lining concrete, the evaluation indexes are comprehensive and verified mutually, and an evaluation result is accurate and reliable. The tunnel secondary lining concrete construction simulation system and simulation method have important theoretical significance and practical value for tunnel secondary lining concrete construction performance evaluation and pouring construction quality control.

Description

technical field [0001] The invention relates to the technical field of road building materials, in particular to a tunnel secondary lining concrete construction simulation system and simulation method. Background technique [0002] In recent years, with the rapid development of my country's economy and the continuous implementation of the strategy of building a strong country in transportation, the demand for railway and highway transportation construction is increasing day by day. my country's mountainous area is vast, and tunnel engineering occupies a large proportion in transportation construction. During the secondary lining construction of mountain tunnels, the tunnel full-section lining formwork trolley is used to pour concrete by pumping. The side walls on both sides are pumped through the pouring holes in the spandrel of the trolley. The pouring hole on the top of the car is pumped upwards. In both methods, the construction personnel vibrate through the vibrating wi...

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): E21D11/10
CPCE21D11/102Y02E10/20
Inventor 南雪丽李荣洋姬建瑞王毅陈浩陈广钊李梅
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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