多向圆锥动力触探和标准贯入技术研究

Research of Multi-directional Dynamic Penetration Test(DPT)and Standard Penetration Test(SPT)

为克服圆锥动力触探和标准贯入试验中完全受重力场控制的弱点,从而提高其在非水平探测面中的适用性,提出了用设备动力代替部分重力做功的思路,从原理上分析了其合理性与等效性,并根据设备做功相等的原则提出了锤击数的修正公式。然后,着重以轻型动力触探为例,考虑到实际应用中可操作性和便捷性,对相关技术参数具体取值进行了探讨,在此基础上设计了新的多向轻型动力触探设备的详图,提出了设备操作要点。最后对多向圆锥动力触探和标准贯入设备的研究与应用前景进行了概要小结。

In order to overcome the shortcomings of DPT and SPT that the acting is entirely controlled by gravity field,so as to improve their applicability on non-horizontal detecting plane,an idea in which the equipment power is utilized for acting partially instead of gravity is proposed,then its rationality and equivalence is analyzed theoretically. According to the principle of equivalent acting,the modified formula of driving number is put forward. Then taking the portable cone sounding test as an example( PCST),considering its operability and convenience in practical application,the value taking of related technical parameters is discussed,upon which detailed drawing of an novel PCST equipment is deigned,basis of design detailing new multiway light dynamic penetration test equipment,equipment operation points is proposed. At the end of the multi cone dynamic penetration test and standard penetration equipment research and application summary.