The study of deformations of the soil mass at construction of underground structures with advanced anchoring

Sergey Stradanchenko,Irina Kokunko,Vladimir Dmitrienko ,С А Масленников ,Yuri Chertov

doi:10.1051/matecconf/201926504016

Sergey Stradanchenko, Irina Kokunko + Show 3 more

Open Access

PDF Available

https://doi.org/10.1051/matecconf/201926504016

Copy DOI

Export

Save

Cite

Abstract
Highlights/Summary
Full-Text PDF
Similar Papers

Abstract

Listen

The development of underground space has a negative impact on the state of objects on the surface. The search of effective ways to prevent deformation of the soil mass has not lost its relevance. The study focuses on advanced anchoring. Based on the analysis of the technological and structural solutions for the construction of the dismantling chamber No. 1 of the Kalininsko-Solntsevskaya line of the Moscow Metro, and studies of stress-strain states of the marginal rock mass in the bottom hole zone by using the finite element method, the measures to ensure the stability of the surrounding rocks and the protective screen of the chamber were considered. The simulation of the stress state of the rock massif shows the weaknesses in the operation of the structures, so the solutions for reducing the surface shrinkage during hardening of the array by advanced anchoring were proposed.

Highlights

Every year, the solution of town-planning problems of large cities becomes complicated due to significant social changes and unfavorable trends in the functioning of urban infrastructure, since the centers of cities are becoming more administrative and commercial
The analysis shows that in this case relaxation processes are developed and soil displacement in the bottom hole zone is increased
The pattern of operation of the anchors of the protective screen in the roof of the chamber can be represented as a multi-span beam resting on the temporary support frames and the ground

Summary

Introduction

The solution of town-planning problems of large cities becomes complicated due to significant social changes and unfavorable trends in the functioning of urban infrastructure, since the centers of cities are becoming more administrative and commercial. This will allow placing the multifunctional underground and aboveground-underground complexes in the most necessary places, freeing the surface of the earth from numerous structures, rooms and devices which are not connected with the permanent presence of people in them, thereby increasing the areas of open, greened and watered spaces for the population [3,4,5,6]

Methods

Results

Conclusion