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摘要本文主要内容是一某时代国际大厦基坑围护方案设计。拟建场地位于南京市栖霞区，纬地路北侧、312国道南侧。原来为丘陵、坡地的场地现在已经被基本填平了，并且有着比较平坦的地势。基坑西、北侧为水面景观最近处约15米；东侧距元化路约60米，南侧距园区道路约20米，确定基坑工程安全等级为二级。根据场地土层分布情况及周边环境，基坑开挖设计与施工应着重考虑降水排水和基坑开挖与支护。23904
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本文使用手工计算和理正F-SPW6.0软件电算，遵照《建筑基坑支护技术规程》（JGJ120-2012）进行支护体系的设计和计算。通过查询相关规范及工程实例，完成了止降水及监测方案。
关键词 基坑支护 设计计算 监测 降水排水
毕业设计说明书（毕业论文）外文摘要
Title Design of an excavation bracing system of a Times Mansion
Abstract
In this paper, the main content is a Design of an excavation bracing system of a Times Mansion. Proposed site is located in qixia district in nanjing xianlin , jiangsu weft road north, 312 national road south. Venue for hilly ~ slope, have been filled in the live, overall relatively flat terrain. North of west, foundation pit away from the water landscape about 15 meters; On the east side of yuan road, about 60 meters, the south about 20 meters away from the park road, determine the foundation pit engineering safety level to level 2. According to the situation of site soil and surrounding environment, design and construction of foundation pit excavation rainfall drainage should be considered and foundation pit excavation and supporting.
This article uses the manual calculation and the Lizheng F - SPW6.0 computer software, in accordance with the construction of foundation pit supporting technology regulation (JGJ120-2012) for design and calculation of the supporting system. By querying the related specification and the project examples,I completed check precipitation and monitoring solutions.
Keywords excavation bracing design calculate monitoring dewatering drainage
目次
1设计方案综合说明 6
1.1 概述 6
1.1.1 工程概况 6
1.1.2 基坑周边环境条件 6
1.1.3 工程水文地质条件 6
1.2 设计总说明 8
1.2.1 设计依据 8
1.2.2 支护结构方案 8
1.2.3支护方案介绍 10
1.3 基坑监测 10
2 基坑支护结构设计计算书 11
2.1 设计计算 11
2.1.1地质计算参数 11
2.1.2计算区段的划分 11
2.1.3计算方法 12
2.1.4土压力系数计算 12
2.2.1土层分布（如表4所示） 12
2.2.2土层侧向土压力计算 13
2.2.3土压力合力及作用点的计算： 14
2.2.4支撑轴力计算： 15
2.2.5桩长计算： 15
2.2.6最大弯矩计算： 15
2.2.7配筋计算 16
2.3.1土层分布（如表6所示） 17
2.3.2土层侧向土压力计算 17
2.3.3土压力合力及作用点的计算： 18
2.3.4支撑轴力计算： 18
2.3.5桩长计算： 19
2.3.6最大弯矩计算： 19
2.3.7配筋计算 19
2.4.1土层分布（表7） 20