论文部分内容阅读
笔者认为,原文中对可灌比值物理意义等方面的分析,对灌浆设计和施工是很有益的.现提出几点意见如下: (一)原文中可灌比值仅表明被灌地层和灌注材料间的几何尺寸关系。若设想与其他灌浆参数(压力、浆液流变性、设计标准等)结合起来,则对判明地层可灌性不仅在理论上,而且在实践上更具有实际意义。以往用可灌比值表示地层有效灌注的有:美国约翰逊认为N>25,苏联阿达莫维奇N>5,国内工程N=4-10,原文建议N=10—15等。笔者认为,其差别较大的原因,就在于N值并未包括影响可灌性的所有重要因素。若要较全面地反映地层的可灌性,则它至少是下面这些因素的函
The author believes that the analysis of the physical meaning of the irrigation ratio in the original text is very useful for the design and construction of grouting. Several points are now proposed as follows: (1) The ratio of irrigation in the original text only indicates that the irrigated layer and the infusion material The relationship of geometric dimensions. If combined with other grouting parameters (pressure, slurry rheology, design criteria, etc.), it is more practical than just theoretical and practical. In the past, the use of irrigation ratio to express the effective perfusion of the strata: US Johnson believes that N>25, Adolfovich N>5, the domestic project N = 4-10, the original proposal N = 10-15 and so on. The author believes that the reason for the large difference is that the N value does not include all the important factors affecting the irrigability. To more fully reflect the irrigability of the formation, it is at least the letter of the following factors