|Table of Contents|

Affection of soil warehouses pressure of EPB shield on ground settlement(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年01期
Page:
59-62
Research Field:
Publishing date:
2010-02-20

Info

Title:
Affection of soil warehouses pressure of EPB shield on ground settlement
Author(s):
HAN Ri-mei1; 3;  SONG Zhan-ping2; 4;  XIE Yong-li1;  WU Huan-tong4
1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. School of Civil Engineering, Xi'an Architecture and Technology University, Xi'an 710055, Shaanxi, China; 3. Xi'an Subway Co Ltd, Xi'an 710018, Shaanxi, China; 4. China Railway 13th Bureau Group Corporation, Changchun 130033, Jilin, China
Keywords:
tunnel engineering;  shield construction;  soil warehouses pressure;  surface subsidence;  numerical test
PACS:
TU443
DOI:
-
Abstract:
This paper takes the shield construction of Guangzhou Metro Line 4 as an example, carries out three dimensional numerical experiments on the ground settlement rule which causes by the soil warehouse pressure of EPB shield. The results show that: with the increase of soil pressure warehouses, the settlement behind the working face is reduced, but the front working face is increased unceasingly, and the raising often occurs in front of the general range of 10 m uplift. When the soil warehouses pressure is at the over balance condition, the raising of ground is increased, the settlement is reduced, and the settlement of the reduction is much larger than the one of raising. The settlement caused by over balance is the smallest. To increase the soil warehouse pressure is an effective method to reduce the settlement under the condition that the shield's front soil body does not be destroy. 2 tabs, 4 figs, 7 refs.

References:

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Memo

Memo:
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Last Update: 2010-02-20