连拱隧道衬砌病害及其处治 #br#

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Abstract The characteristics and origin of diseases in the liners of a joint arch tunnel in Yunnan Province is studied and the treatment measure is proposed. The main diseases in the liners are cracks, peeling-off and water-leakage. Cracks occur on the central wall and its basement, flank walls, arch crown as well as the inverted arch, and mostly in the central wall. Peeling-off mainly happens in the connecting part between central wall and arch crown. Water-leakage takes place mostly in the connecting part between central wall and arch crown, and partly along the cracks. The cracks may be classified into vertical, horizontal and inclined ones according to their extending directions. Distribution of the inclined cracks is closely related to the depth of the tunnel and they mostly appear in the central wall and the lower part of arch crown. Horizontal cracks distribute mainly in the arch crown. The occurrence of these diseases is related to geological condition, unreasonable design, and poor construction control. The engineering treatment measures for cracks, peeling-off, water-leakage are proposed. Since the poor geological condition such as lower roakmass quality and richer groundwater are the essential cause of leading these disease, the authors also put forward treatment measures of the ground within the tunnel.

Received: 31 March 2003

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	Articles by authors
	Su Shengrui1
	2 Zhu Hehua1 Li Guofeng3

Cite this article:

Su Shengrui1,2 Zhu Hehua1 Li Guofeng3. DISEASES IN THE LINERS OF JOINT ARCH TUNNEL AND THEIR TREATMENT[J]. , 2003, 22(S1): 2510-2515.

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https://rockmech.whrsm.ac.cn/EN/ OR https://rockmech.whrsm.ac.cn/EN/Y2003/V22/IS1/2510