Great achievements have been made in rock mass structure research to evaluate engineering properties of rock mass in engineering geological domain of our country , and rock mass structure cybernetics becomes the basic theory of rock mass mechanics 岩体结构是我国工程地质界在评价岩体工程性质方面取得的重要成果, “岩体结构控制论”是岩体力学的基础理论。
Considering the possibility to improve the properties of the lime - loess , certain experiments about the strength and water - stability of cement - lime - loess was done . some properties of the cement - lime - loess was developed and used in practice 考虑灰土改性的可能性,作者还做了一定数量水泥灰土的强度试验和水稳定性试验,得出水泥灰土的一些工程性质,并将之应用于工程实践。
The spreading gradation soil analyzed in the article is a cohesive coarse soil . it ' s a kind of crude soil - rook mixtures . it ' s often devided into fine material and coarse material by the save of 5mm and the charge of the two contents affects its project quality directly 本论文研究的宽级配砾质土指的是黏性粗粒土,是一种天然的土石混合料,其颗粒组成通常以5mm为界分为粗料和细料两部分,这两部分组成含量的变化直接影响到它的工程性质。
A evaluate system relative to the rock mass mechanism of the complicated rock mass was achieved finally . the result of rock mass classification reflected that the rock mass quality is relative compactly to the mechanical genesis of the complicated rock mass 论文基于岩体质量综合分级结果和岩体力学试验结合右岸的工程地质条件对右岸复杂岩体的工程性质进行了综合评价,结果表明:右岸岩体质量与复杂岩体右岸岩体力学环境的特殊性和复杂性密切相关。
The technique of cement power - sprayed piles is one of improving soft - soil roadbed technology presently . combining with the construction and field tests of nanjing - qidong railway , some research of using cement power - sprayed piles to improve soft - soil roadbed was conducted and the research includes several aspects below : 1 . the authour first introduces the formation . distribution , physical mechancial behaviour and engineering characteristic of soft soil , and clarifies the necessity of improving soft - soil roadbed 本文结合宁启铁路工程的水泥粉体喷搅桩(简称粉喷桩)复合地基的现场施工及试验,对粉喷桩加固软土路基作了研究,具体研究内容包括以下几方面: 1作者首先介绍了软土的成因和分布,软土的物理力学以及工程性质,阐明了软土加固处理的必要性及目前软土路基加固处理的方法。
In this paper , first discussed are the corresponding results in highway and dam constructions and the engineering characters of rock - fills are deeply analyzed , especially the relationships between gradation , strength and maximum dry density , long - term stability of fillers including earth - fillers and rock - fillers and some conclusions of use are drawn . by in - situ tests and researches on compacting mechanism of high - filled rock embankments , effecting factors on compaction , construction technology and shock compacting technology , obtained in this paper are the compacting technology of high - filled rock embankment and the optimal parameters of rolling compaction . by deeply research on the theory and methods of quality control of high - filled embankment , settled are the questions as quality detection method and control standard of high - filled rock embankment 本文首先总结和分析了国内外公路和坝工行业已有的相关成果,深入探讨了填石料的工程性质与最大干密度、长期稳定性等之间的关系,得到了一些有益的结论;通过现场试验路堤的试验和对高填石路堤压实机理、填石路堤压实效果影响因素、施工工艺和冲击压实技术等研究,解决高填石路堤压实工艺和最优碾压参数控制等技术问题;通过深入研究填石路堤压实质量控制原理和方法,解决高填石路堤压实质量检测方法和控制标准技术难题;解决高填石路堤沉降观测技术问题,并根据沉降观测结果研究高填石路堤地基和路堤沉降变化规律,得到了能预测沉降变化规律的“龚帕斯”成长曲线预测模型;根据工程实际,深入研究了边坡稳定性的影响因素,得到了有益的结论。
Based on the engineering geologic investigation reports of 22 buildings and the author ' s own tests in lab ( which includes 18 groups of conventional test and compression test , 8 groups of unconsolidated undrained triaxial test and 8 groups of quick direct shearing test ) , taiyuan silt is studied in the paper . firstly , the variability of silt indexes is analyzed . the analyses results show the change laws on variability , in addition , the average value and variability coefficient ranges of silt indexes are given for reference 本文以太原地区粉土为研究对象,在收集、整理了22个建筑工程场地勘察报告和作者室内试验成果( 18组常规试验和压缩试验、 8组不固结不排水三轴剪切和8组直剪快剪试验)的基础上,对太原粉土作了以下方面的分析研究:首先研究了粉土工程性质指标的变异性,得出了变异系数的变化规律,给出了各工程性质指标均值和变异系数范围的建议值。
The paper emphasizes the discuss of the problems of soil and rock engineering geology , researches the engineering characters of the soil of groundwork , analyses the subjects of the apply of the toft and the optimizing of using of the stake - base , brings forward and estimates the development direction of ning - yang county and the fitness of the development section , discusses the environment geology problem in the city and the surrounding , and suggests advices to the existing problems appearing in the engineering reconnaissance 本文着重讨论了宁阳县城区的岩土工程地质问题,研究了城区地基土的工程性质,分析了城区地基的使用和桩基础优化利用问题,提出并评价了宁阳城区的发展方向和开发区的适宜性,讨论了城区及周围的环境地质问题,并对当前岩土工程勘察存在的问题提出了建议。
The expansion soil on yangan railway roadbed cause many diseaseses , such as mud pumping , ballast pocket and settlement and extrusion , etc . when being serious there are too mud on sleeper and roadbed to walk on it , it is hard to keep the size of geometry of the track and often cause the car shaking and influence the security of the driving seriously 由于路基土质所特有的不良的工程性质。使阳安线基床病害十分严重,其中基床翻浆及下沉十分突出,它直接影响到轨道的稳定。使轨道几何尺寸难以保持,经常造成晃车,一到雨季轨道面上及道床上全是泥浆以致无法行走,行车安全受到严重威胁。
Firstly , the author has researches on basic engineering properties of soil layers in tunneling construction , especially in the relationship between the changes of matric suction ( negative pore water pressure ) and soil strength data . the results have obviously shown on the control of soil strength to matric suction in the different suction 首先对地铁隧道施工中环境土层基本工程性质进行了研究,着重研究了基质吸力(负孔隙水压力)的变化和土的强度参数的关系,研究结果表明:在不同的吸力状态下,土的强度都不同,土的强度明显地受吸力控制。