[1]张登亮,吴晓飞,姜一楠.板桥河闸扩建工程深基坑施工降排水研究[J].江苏水利,2016,(11):60-64.
　ZHANG Dengliang,WU Xiaofei,JIANG Yinan.Research on construction draining water of deep foundation pit in Banqiaohe sluice extension project[J].JIANGSU WATER RESOURCES,2016,(11):60-64.
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板桥河闸扩建工程深基坑施工降排水研究()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2016年11期
页码:
60-64
栏目:
工程建设
出版日期:
2016-11-15

文章信息/Info

Title:
Research on construction draining water of deep foundation pit in Banqiaohe sluice extension project
文章编号:
1007-7839（2016）11-0060-05
作者:
张登亮1; 吴晓飞1; 姜一楠2
1. 南京振高建设有限公司 , 江苏 南京 211300 ;
2. 南京市雨花台区水利工程建设处，江苏 南京 210017
Author(s):
ZHANG Dengliang1 ;  WU Xiaofei1 ;  JIANG Yinan2
1. Nanjing Zhengao Construction Co., Ltd, Nanjing 211300, Jiangsu;
2. Water Conservancy Project Construction Division of Yuhuatai District, Nanjing 210017, Jiangsu
关键词:
复杂地质; 水闸扩建; 基坑降排水; 导渗减压降排水施工装置; 施工工法
Keywords:
complex geological;  lock expansion;  foundation pit draining;  guide seepage pressure drop drainage construction unit;  construction method
分类号:
TV551.4+1
文献标志码:
B
摘要:
复杂地质条件下的水闸扩建工程，在原水闸拆除及深基坑降排水施工方案编制时，既应考虑老闸拆除对保留部分结构的影响，又要考虑深基坑开挖及施工降排水对老闸保留部分结构及周边环境的影响。本文采用减压降水井 + 减压降水导渗管组成减压降排水装置联合降排水方案，减压降水井和减压降水导渗管相连通，地下水流向减压降排水装置中，当地下水上升到控制水位时，减压降水井中的水泵自动抽水外排，使基坑底部动水力方向由向上减小为向下或持平，使深基坑基底无隆起、边坡稳定，降排水得到有效控制，老闸底部地下水位保持稳定，老闸室结构完好。
Abstract:
When the scheme of original sluices demolition and construction of deep foundation pit draining is prepared for lock expansion project under complex geological conditions, the effect of demolition on old gate structure as well as effect of the deep foundation pit excavation and drainage on the retain part of the structure and the surrounding environment should be considered. The joint draining scheme of drainage device which is composed of reducing precipitation well and reducing rainfall infiltration pipe is adopted. Reducing precipitation well is connected with reducing precipitation guide tube. When the groundwater goes up to the control water level, the water pump in the dewatering well will automatically pump out the water, so that the direction of the hydrodynamic force of the bottom of the foundation pit can be reduced from up to down or flat, so that the deep foundation pit flat, slope stability, reducing drainage is effectively controlled. The underground water level at the bottom of old gate remained stable, and lock chamber structure is intact.

参考文献/References:

[1] 南京市水利规划设计院有限责任公司. 南京市雨花台区板桥河闸扩建工程初步设计报告[R]. 南京：南京市水利规划设计院有限责任公司，2015.9.
[2] ZGGF008-2015，复杂地质条件下深基坑联合降水施工工法[S].
[3] ZGGF005-2013，复杂地质条件下深基坑预降承压水施工工法[S].
[4] 潘海防.深基坑深井降水的施工实践[J]. 科技创新导报，2011（23）.
[5] GB50497-2012，建筑基坑工程监测技术规范[S].

备注/Memo

备注/Memo:
作者简介：张登亮（1974-），男，工程师，主要从事水利工程施工建设与管理的研究工作。
更新日期/Last Update: 2016-11-15