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摘要20世纪以来，我国经济取得了高速发展。各大城市中，高层建筑建设、地下工程建设越来越多，深基坑工程也取得了飞速的发展。为了保证地下工程施工以及基坑周边环境的安全，要对基坑侧壁以及周边环境进行支护、加固等保护措施。50885
拟建工程位于碧水兰庭东侧、大运河西侧。该工程 .00相当于黄海标高7.5m，自然地面黄海标高平均为7m，基坑面积约8000平米，基坑挖深为8.55m。
通过对拟建场地工程地质条件分析，地下水位较浅，无需考虑其影响。本着安全可靠、经济合理、技术可行、施工方便的原则，本次设计中采用钻孔灌注桩加锚杆的基坑支护结构。在本次设计中先对钻孔灌注桩加锚杆的支护形式进行了手算，后用理正软件进行了电算校核。最后，绘制基坑支护平面图、剖面图、大样图。
毕业论文关键词：深基坑；钻孔灌注桩；锚杆；基坑支护
Abstract
Since the 20th century, China's economy has achieved rapid development. In big cities, more and more high-rise building construction, underground construction, deep foundation pit engineering also has achieved rapid development. In order to ensure that underground engineering construction and the safety of the foundation pit surrounding environment, to the foundation pit side wall and the surrounding environment support, reinforcement, protection measures.
The proposed engineers located in the clear water of the proposed construction project LanTing east, the west side of the grand canal. The project. 00 is equivalent to the yellow sea elevation 7.5 meters, natural yellow sea elevation of the average ground for 7 m, foundation pit area of about 8000 square meters, digging deep foundation pit is 8.55 m.
Through to the proposed site geological condition analysis, the underground water level is shallow and need not consider the impact. In line with the safe and reliable, reasonable economy, technology feasible and convenient construction principle, the design with bored piles and foundation pit supporting structure of anchor. In the design of bored piles and first in the form of anchor supporting hand count, with Richard is after the check of computer software. Finally, drawing foundation pit support plan, section and details.
Keywords: deep foundation pit；Cast-in-place pile；anchor pile；retaining and protecting for foundation excavation
目 录
第一章 绪论 1
1.1引言 1
1.2基坑支护类型 1
1.3基坑支护的设计要求 2
1.4基坑工程的发展现状 3
1.5深基坑支护技术的发展趋势 4
第二章 基坑基本概况 5
2.1 基坑工程概况 5
2.1.1工程概况 5
2.1.2基坑周围环境 5
2.2工程地质概况 5
2.2.1地形地貌 5
2.2.2工程地质概况 5
2.2.3水文地质条件 6
第三章 基坑支护方案 7
3.1设计依据 7
3.2方案选择 8
第四章 基坑支护设计计算 9
4.1基坑支护设计参数说明 9
4.1.1 土层设计计算参数