Study on the stratum-grouting control according to the evolution of additional strain of shaft lining

Zhou, Guoqing; Guo-fan, Zhao; Liu, Zhiqiang; Liang, Hengchang; Xu, Jingru; Feng, Xuewu; Guo-qing, Dong

doi:10.1201/9780203022528.ch70

Cited by 2 publications

(2 citation statements)

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“…After the destruction of the shaft lining more or less still bear the additional force, called residual additional force. Through the grouting strengthening and improvement the nature of the aquifer, it not only inhibits and weakens the additional force generation and growth, but also grouting process will slow release the stress of the vertical shaft [2][3].…”

Section: The Principle Of Ground Grouting Reinforcement To Prevent Th...mentioning

confidence: 99%

Research on the Prevention of Shaft Lining Fracturing in the Special Strata Based on the Monitoring Information

Liu

2012

AMR

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The method of cement grouting in surrounding soil can be used to fundamentally prevent and cure the shaft lining rapture by its dual effects of release and restraint vertical addition force. The results show that this technique can effectively improve the stress condition of shaft lining and the vertical additional stress of the shaft lining can be released and restrained. The stress release effect is most evident in the deep of the shaft lining and changes in a descending order from the deep to the top. In grouting process, the cement grouting parameters should be adjusted according to the stress state of shaft lining that is monitored , it can ensure the safety of the shaft and reach the reinforcement effect. So this technique can prevent and cure the rupture and ensure safety of shaft lining by means of postponing the rupture time.

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Section: The Principle Of Ground Grouting Reinforcement To Prevent Th...mentioning

confidence: 99%

Research on the Prevention of Shaft Lining Fracturing in the Special Strata Based on the Monitoring Information

Liu

2012

AMR

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“…To avoid further destruction, the stratum grouting method is used to prevent the shaft lining from fracture as follows [11][12][13].…”

Section: Process Control During Stratum Grouting For Ensuring the Safmentioning

confidence: 99%

Measurement of Additional Strains in Shaft Lining Using Differential Resistance Sensing Technology

Guo-fan

Pei

Liang

2013

International Journal of Distributed Sensor Networks

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As is well known, shaft lining fracture is the main disaster resulting in a large amount of fatalities and property loss. Thus, the additional strain is a key parameter to evaluate the safety condition of existing shaft linings. In this study, a new type of safety monitoring system based on differential resistance sensing technology is developed to measure the additional strain in shaft linings. In this paper, the theatrical study, the working principle, and the function of the newly developed monitoring system are fully presented. To investigate the reliability and effectiveness of the monitoring system, the differential resistance sensors are used to measure the horizontal and vertical strains at different elevations in a shaft lining during reinforcing the fracture inside the shaft lining. It can be found that from the test results the monitoring system based on differential resistance sensing technology can measure the deformation of the existing wall lining during stratum grouting. Therefore, it can be concluded that the newly developed monitoring system is significant for fracture warning and reinforcement engineering.

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Study on the stratum-grouting control according to the evolution of additional strain of shaft lining

Cited by 2 publications

References 0 publications

Research on the Prevention of Shaft Lining Fracturing in the Special Strata Based on the Monitoring Information

Research on the Prevention of Shaft Lining Fracturing in the Special Strata Based on the Monitoring Information

Measurement of Additional Strains in Shaft Lining Using Differential Resistance Sensing Technology

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