【摘要】 针对某公司二期填方区地基处理项目,对试验场地进行强夯振动测试。在此基础上,分析强夯振动加速度、速度随测点距离之衰减关系;强夯能级、夯击数与测点振动加速度、速度之关系;评价隔振沟的作用;依据相应规范对试验场地划分振动影响区(振动易损区,基本安全区,安全区);并结合各建筑物地基基础及结构情况,提出强夯施工及加固建议。更多还原

【Abstract】 The dynamic compaction is a common technology for ground treatment.Based on the tests on dynamic compaction vibration at test site of ground treatment project of a company’s second stage filled area,the attenuation relation between acceleration of dynamic compaction vibration and measuring point distance is analyzed.While the attenuation relation between speed of dynamic compaction vibration and measuring point distance is also analyzed.The relation between level of dynamic compaction,vibration acceleration and speed at measuring points are studied.The relation between number of compacting,vibration acceleration and speed at measuring points are also studied.The roles of vibration isolation trenches are evaluated.The test site is divided into different vibration coverage zones(vibration vulnerable zone,basic safe zone,safe zone) according to corresponding standards.The grounds and structures of buildings are combined to put forward the proposals for construction and improvement of dynamic compaction.更多还原