Fans for general purposes-performance testing in situ 一般用途风扇.现场性能测试
Fans performance testing in situ for power boiler 电站锅炉风机现场性能试验
Industrial fans-performance testing in situ 工业用风扇.现场性能试验
Based on the study idea of the former pile else, this paper has conducted and discussed the mechanism of consolidation, settlement calculation and optimization design of the pcc pile according to the test in situ results and reasoning . it includes the followings in detail : ( 1 ) compared with the precast tube concrete pile and tube sinking concrete pile, the merits and shortages, construction machine, construction technology of the pcc pile and pcc pile composite foundation are introduced in detail to make the pcc pile be known completely by engineers 本文在借鉴其他桩型的研究的基础上,通过现场试验研究和理论推导,对pcc桩处理软基加固机理、沉降计算和优化设计等进行了较为深入的研究和探讨,具体包含以下几方面的内容:(1)在与预制管桩和沉管灌注桩等桩型比较的基础上,对pcc桩的优缺点、施工机具设备、施工工艺、技术作用机理以及pcc桩复合地基技术特点等进行了述评。