Design aspects of deep water distribution shafts

被引：0

作者：

Allahverdi, N. ^{[1
]}

Nasri, V. ^{[2
]}

机构：

[1] New York City Coll Technol, Brooklyn, NY 11201 USA

[2] AECOM, New York, NY USA

来源：

PROCEEDINGS OF THE ITA-AITES WORLD TUNNEL CONGRESS 2023, WTC 2023: Expanding Underground-Knowledge and Passion to Make a Positive Impact on the World | 2023年

关键词：

D O I：

10.1201/9781003348030-50

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper covers aspects of planning and designing of deep shafts with reference to two water distribution shafts under construction in New York City. The new shafts will be sunk into soil and rock to a depth to connect to existing Queens-Brooklyn tunnel section of City Tunnel No. 3 (CT3). The inside diameter of the upper parts of both shafts is 14.9 meter. Artificial ground freezing is specified as preferred method of excavation support for the entire stretch in soil. Excavation in competent rock will be performed using drill and blast technique preceded by a pre-excavation grouting program. Membrane waterproofing with sectioning is prescribed to limit groundwater infiltration to dry chambers.

引用

页码：411 / 418

页数：8

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