Calculations regarding the application of isolating and retaining seals with culverts

Mining of Sustainable Development

生态环境科学

Kleta, H.^1

Silesian University of Technology, Faculty of Mining and Geology, 2 Akademicka Street, Gliwice

44-100, Poland^1

关键词: Applied materials;    Binding materials;    Binding time;    Bingham plastic;    Formwork;    Numerical calculation;    Water drainage;    Water pressures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/261/1/012018/pdf
DOI  :  10.1088/1755-1315/261/1/012018

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The paper presents the calculations pertaining to the application of isolating and retaining seals with culverts, allowing to control the flow of water, protecting the water drainage dip heading against uncontrolled ingress of water accumulated in the neighbouring post-exploitation workings. The binding material used in the construction of the isolating and retaining seal with a culvert is a Bingham plastic which exerts hydrostatic pressure on the wall of the steel culvert during binding. During that time, the culvert constitutes an internal formwork. Due to the above, the calculations regarding the isolating and retaining seal were divided into two stages. In the first stage, the required length and strength of the seal were determined based on analytical and numerical calculations, depending on the expected maximal water pressure. In the second stage of calculations, the necessity to apply the binding material onto the seal in stages was exhibited, due to hydrostatic pressure exerted on the culvert pipe by the Bingham plastic. The thickness of each of the layers of the binding material has been specified based on static analyses of the culvert pipe, considering the binding time of the applied material.