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A platform for research: civil engineering, architecture and urbanism
In-situ monitoring method for loess fill foundation soil consolidation compression process
The invention discloses an in-situ monitoring method for the soil consolidation and compression process of a loess fill foundation. The in-situ monitoring method comprises the following steps: 1, calibrating a TDR (Time Domain Reflectometer) probe; 2, excavating an embedding pit, a wire groove and a wire conduit embedding groove; 3, a soil pressure meter and a TDR probe are installed, and soil is taken; 4, arranging the cables; 5, backfilling the burying pit, the wiring trough and the wiring tube burying groove; 6, measuring data of the installed soil pressure gauges and the TDR probes, and installing the soil pressure gauges and the TDR probes on the upper layer in the newly backfilled soil layer; seventhly, the sixth step is repeated for multiple times till the designed elevation is achieved through backfilling; 8, data are collected and recorded at fixed time intervals, the water content and the dry density of each layer of filling soil of the filling body are calculated, and then the compression coefficient, the compression modulus and the settling volume of the layer of filling soil are calculated. According to the method, the process that the soil volume is reduced and the density is increased due to the fact that the arrangement compactness degree between soil particles is increased and the porosity is reduced when the filled foundation soil is subjected to the external load effect is reflected from the angle of soil mechanics.
本发明公开了一种黄土填方地基土固结压缩过程的原位监测方法，包括步骤：一、标定TDR探头；二、开挖埋设坑、导线槽和导线管埋设槽；三、安装土压力计、TDR探头并取土；四、整理线缆；五、埋设坑、导线槽和导线管埋设槽的回填；六、测量已安装土压力计和TDR探头数据并在新回填的一层填土中安装上层的土压力计和TDR探头；七、多次重复步骤六，直至回填至设计标高；八、隔固定时间采集数据并记录，计算填筑体每一层填土的含水率和干密度，进而计算该层填土的压缩系数、压缩模量和沉降量。本发明从土力学角度反应填方地基土在受到外部荷载作用下，由于土颗粒之间的排列紧密程度增加，孔隙度减小，导致土体积缩小，密度增加的过程。
In-situ monitoring method for loess fill foundation soil consolidation compression process
The invention discloses an in-situ monitoring method for the soil consolidation and compression process of a loess fill foundation. The in-situ monitoring method comprises the following steps: 1, calibrating a TDR (Time Domain Reflectometer) probe; 2, excavating an embedding pit, a wire groove and a wire conduit embedding groove; 3, a soil pressure meter and a TDR probe are installed, and soil is taken; 4, arranging the cables; 5, backfilling the burying pit, the wiring trough and the wiring tube burying groove; 6, measuring data of the installed soil pressure gauges and the TDR probes, and installing the soil pressure gauges and the TDR probes on the upper layer in the newly backfilled soil layer; seventhly, the sixth step is repeated for multiple times till the designed elevation is achieved through backfilling; 8, data are collected and recorded at fixed time intervals, the water content and the dry density of each layer of filling soil of the filling body are calculated, and then the compression coefficient, the compression modulus and the settling volume of the layer of filling soil are calculated. According to the method, the process that the soil volume is reduced and the density is increased due to the fact that the arrangement compactness degree between soil particles is increased and the porosity is reduced when the filled foundation soil is subjected to the external load effect is reflected from the angle of soil mechanics.
本发明公开了一种黄土填方地基土固结压缩过程的原位监测方法，包括步骤：一、标定TDR探头；二、开挖埋设坑、导线槽和导线管埋设槽；三、安装土压力计、TDR探头并取土；四、整理线缆；五、埋设坑、导线槽和导线管埋设槽的回填；六、测量已安装土压力计和TDR探头数据并在新回填的一层填土中安装上层的土压力计和TDR探头；七、多次重复步骤六，直至回填至设计标高；八、隔固定时间采集数据并记录，计算填筑体每一层填土的含水率和干密度，进而计算该层填土的压缩系数、压缩模量和沉降量。本发明从土力学角度反应填方地基土在受到外部荷载作用下，由于土颗粒之间的排列紧密程度增加，孔隙度减小，导致土体积缩小，密度增加的过程。
In-situ monitoring method for loess fill foundation soil consolidation compression process
一种黄土填方地基土固结压缩过程的原位监测方法
WANG XIAOYONG (author) / LIANG BAOZHEN (author) / ZHENG JIANGUO (author) / YU YONGTANG (author) / RONG XUEWEN (author) / REN LIJUN (author) / LEI WEI (author) / YANG SHAOFEI (author) / YANG WENDONG (author) / ZHUANG JIA (author)
2024-12-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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