Construction Technology for Tunnel Invert in Swelling Soil

Tunnel Construction ›› 2010, Vol. 30 ›› Issue (5): 582-585.

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Construction Technology for Tunnel Invert in Swelling Soil

CHEN Hong1, HONG Da-Xin2

1. The Second Engineering Co., Ltd. of China Railway Tunnel Group, Sanhe 065201, Hebei, China;
2. Beijing Branch, Quality and Safety Supervision Station, Ministry of Railways, Beijing 100860, China

Received:2010-01-18 Revised:2010-07-09 Online:2010-10-15 Published:2010-10-27

Abstract

Abstract:

The invert in the swelling soil section of Tuanshanzi tunnel on the northeast ring railway of Shenyang railway terminal is subject to heaving. The analysis on the stress of the invert, the effect of bolting to control the heaving of the floor in swelling soil and the techniques and design for the construction of the invert are presented. Proposal is made on the construction of the invert of tunnels in swelling soil. This paper can provide reference for similar projects in the future.

Key words: swelling soil, invert, selfdrilling anchor bolt, floor heave

CHEN Hong, HONG Da-Xin. Construction Technology for Tunnel Invert in Swelling Soil[J]. Tunnel Construction, 2010, 30(5): 582-585.

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Construction Technology for Tunnel Invert in Swelling Soil

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