一、前言地基中各层土的压缩量,是研究土体在荷载作用下需要获得的重要数据之一,同时也是检验软基加固效果的重要依据。目前国内测量土体分层沉降主要使用单点深层沉降标,按层分别钻孔埋设,工作量较多。有时,因为沉降杆与保护管间的摩擦力过 I. INTRODUCTION The amount of soil compression in every layer of foundation is one of the most important data to study under soil loading. It is also an important basis for testing the reinforcement effect of soft ground. At present, the main measurement of soil subsidence in China is the use of single-point deep subsidence subsurface, which is bored separately by layer, which requires more workload. Sometimes, because of the friction between the sinking rod and the protective tube