The CFG pile holing without squeeze has the following advantages: multi-story buildings sited on shallow subgrade in a mountainous district can utilize the higher bearing capacity of soil between the piles sufficiently; the mechanism avoiding damage from collapse of subgrade ; outlay; piling pr.
指出了用非挤土成孔的CFG桩在以下诸多方面优势:山区浅层地基上的多层建筑充分利用桩间土较高的承载力,消除地基湿陷影响的机理、造价、成桩工艺无振动及粉尘污染、成桩质量易于保证等,是张家口市区地基处理方案的理想选择。
The variation process of pore air pressure and pore water pressure of samples at several states, such as primitive consolidation, as well as collapse state, are tested, respectively.
通过用改装的应力 -应变控制式三轴仪 ,对等应力比条件下的非饱和原状黄土进行了“分级浸水”,同时测试了试样在初始、加压固结和浸水湿陷几个状态下孔隙气压力和孔隙水压力的变化过程。
Discussion on the mechanism of loess collapsibility caused by irrigation from the aggregates stability-losing angle;
从团粒结构失稳角度探讨由灌溉引起的黄土湿陷发生机理
According to factors influencing the collapsibility of loess in this paper combined with practical work in Datong Expressway an idea is proposed that applied impact roller in collapsible loess foundation treatment.
阐述了影响黄土湿陷的原因 ,结合大同高速公路湿陷性黄土地基处理实例 ,从试验目的、试验要点、试验方法等方面 ,针对性地提出了冲击压路机处理湿陷性黄土地基的具体方法。
Through the living example with adopting lime-soil compaction piles to dispose loess foundation so as to eliminate collapsibility, improve compressibility and increase the strength of foundation, the paper discusses feasibility of compaction piles served as tall buildings foundations, and studies characteristics of foundations settlement.
介绍通过高层学生公寓利用灰土挤密桩处理黄土地基,达到消除湿陷性,改善压缩性,提高地基强度的工程实例,探讨了挤密桩用作高层建筑地基的可行性,并对基础的沉降特点进行了探讨。
Application of Lime-Soil Compaction Pile in Treatment of Collapsibility Loess Foundation of Fu-Chao Freeway;
灰土挤密桩在阜朝高速公路路基工程湿陷性黄土地基处理中的应用
Study on collapsibility and ground treatment to deep-seated loess of Taiyuan area in northern Shaanxi;
陕北台塬区深层黄土湿陷性研究及地基处理
Relationship between collapsibility and microstructure of compacted loess;
压实黄土的湿陷性与微观结构的关系
Experimental study on reinforcing collapsible loess foundation of earth dam with dynamic compaction method;
强夯法加固湿陷性黄土土坝地基试验研究
The practice of strengthening collapsible loess with dynamic compaction method;
强夯法加固湿陷性黄土地基的实践
On collapsible loess foundation processing;
湿陷性黄土地基处理浅谈
Several affecting factors determining loess coefficient of collapsibility;
影响黄土湿陷系数测定的几个因素
In this paper,the loess coefficient of collapsibility was tested by using circular knife of 30cm2 and 50cm2 in laboratory,then the difference of coefficient of collapsibility between vertical and lateral of loess was compared.
试验所用黄土试样取自西安东郊十里铺,且试样均在同一探井4m深度处取得,属Ⅲ级自重湿陷性黄土,在室内分别用面积为30cm2(小环刀)和50cm2(大环刀)的环刀进行单、双线法湿陷性试验,同时用相同含水量的黄土试样在平行于黄土的沉积方向(纵向)和垂直于黄土沉积方向(横向)进行湿陷试验,最后得出了环刀面积和黄土的各向异性对其湿陷系数影响很大的结论。
The structural strength, compression curve, coefficient of collapsibility under different water content and coefficient of consolidation of natural saturated loess and man made structural loess are measured with confined compression test in lab.
通过室内侧限压缩试验 ,对原状黄土和人工制备结构性黄土测定了不同含水量下的结构强度、压缩曲线、湿陷系数及饱和时的固结系数。