基坑变形监测方案

摘 要本设计主要针对某深基坑工程施工过程中基坑变形及引起周边环境变形进行监测得方法及相关数据处理方案得设计与分析。主要监测内容对基坑壁进行水平位移监测与沉降监测;内支撑格构柱进行沉降监测;周边临近基坑受基坑影响得建筑物作沉降监测;周边建筑沉降超预警值后要求进行倾斜观测。采纳监测方法为精密二等水准、极坐标法、投点法，并对其可行性进行做了精度分析。关键字:沉降观测；水平位移观测;倾斜观测;二等水准；极坐标 Ab ｔ ractThis de ｓ i ｇ n i ｓ mainly f ｏｒ a deep f ｏ unda ｔ ion p ｉ t during ｔｈe c ｏｎｓ tru ｃ tio ｎ ｏ f fou ｎ d ａ tion pit de ｆ ormation ａｎ d cau ｓｅ the deform ａ tion of t ｈｅ ｓ u ｒ roun ｄ in ｇ e ｎ viro ｎ m ｅ nt mon ｉ t ｏ r ｉng meth ｏ d ｓ and ｄ ata pr ｏ ce ｓ si ｎ g ｐ rogra ｍ ｄ esi ｇ n and ana ｌ yｓ is、The ｍ ain ｍ on ｉ toring co ｎｔ ent of th ｅ ｆｏ undati ｏ n p ｉ t wal ｌ for monit ｏ rin ｇ h ｏ ri ｚｏ ntal di ｓ pl ａ ce ｍ e ｎ t and ｓ ettl ｅ m ｅｎｔ ｍｏ nitorin ｇ;In supp ｏ rt of ｌａ t ｔ i ｃ e column fo ｒ ｓｕ b ｓｉd ｅｎ c ｅ monitoring; near ａ n e ｘ ca ｖａ t ｉｏ n f ｏ u ｎｄ ation pit surroun ｄｉ n ｇ b ｙ eff ｅ ct of ｂ u ｉｌ dings fo ｒ ｓ u ｂ sid ｅ nce monitｏ ring;The s ｕ r ｒ ound ｉ n ｇ building ｓｅ ttlement o ｆ ｓ uper ｅａ rly warn ｉｎ g ｖ alue re ｑ uir ｅ ments of the t ｉｌ t o ｂｓ erva ｔｉ o ｎ、The mon ｉ tor ｉ ng met ｈ od ｆ or pre ｃｉｓ ion two le ｖ el, the pola ｒ ｃ oord ｉnate method, poin ｔ s me ｔ h ｏｄ,And its ｆ easibi ｌ ity was made p ｒ eci ｓion an ａ lysis、K ｅ yword: H ｏ r ｉ z ｏ nt ａ l displacement ｏ b ｓ erva ｔ i ｏ n; settl ｅment ｏ b ｓ er ｖ at ｉ o ｎ； tilt ｏ bs ｅ rvation; ｔ wo ｌｅ vel; pola ｒ coordinates...