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A platform for research: civil engineering, architecture and urbanism
Water-rich stratum foundation pit seepage deformation risk prediction method
The invention discloses a water-rich stratum foundation pit seepage deformation risk prediction method, which comprises the following steps of: measuring the anti-seepage cohesive force, the soil particle specific gravity, the soil porosity and the soil internal friction angle of a soil body of a water-rich stratum foundation pit by adopting a test, and calculating the anti-seepage strength of the soil body at the foundation pit; according to the specific gravity of the soil particles and the internal friction angle of the soil, the hydraulic gradient of seepage deformation of the foundation pit is calculated; and judging whether the hydraulic gradient is greater than the impervious strength of the soil body or not and whether the difference between the hydraulic gradient and the impervious strength is greater than a preset value or not, if yes, determining that the foundation pit has the seepage deformation risk, otherwise, determining that the foundation pit does not have the seepage deformation risk. According to the scheme, the seepage deformation risk is predicted through the anti-seepage strength and the hydraulic gradient, the influence of seepage on the foundation pit is comprehensively considered, and therefore the prediction accuracy is guaranteed.
本发明公开了一种富水地层基坑渗透变形风险预测方法，其包括采用试验测定富水地层基坑的土体的抗渗粘聚力、土粒比重、土体孔隙率和土体内摩擦角，并计算基坑处的土体抗渗强度；根据土粒比重和土体内摩擦角，计算基坑发生渗透变形的水力坡降；判断水力坡降是否大于土体抗渗强度，且两者之间的差异是否大于预设值，若均为是，则基坑存在渗透变形风险，否则基坑不存在渗透变形风险。本方案的通过抗渗强度与水力坡降实现对渗透变形风险进行预测，综合考虑了渗流对基坑的影响，从而保证了预测的准确性。
Water-rich stratum foundation pit seepage deformation risk prediction method
The invention discloses a water-rich stratum foundation pit seepage deformation risk prediction method, which comprises the following steps of: measuring the anti-seepage cohesive force, the soil particle specific gravity, the soil porosity and the soil internal friction angle of a soil body of a water-rich stratum foundation pit by adopting a test, and calculating the anti-seepage strength of the soil body at the foundation pit; according to the specific gravity of the soil particles and the internal friction angle of the soil, the hydraulic gradient of seepage deformation of the foundation pit is calculated; and judging whether the hydraulic gradient is greater than the impervious strength of the soil body or not and whether the difference between the hydraulic gradient and the impervious strength is greater than a preset value or not, if yes, determining that the foundation pit has the seepage deformation risk, otherwise, determining that the foundation pit does not have the seepage deformation risk. According to the scheme, the seepage deformation risk is predicted through the anti-seepage strength and the hydraulic gradient, the influence of seepage on the foundation pit is comprehensively considered, and therefore the prediction accuracy is guaranteed.
本发明公开了一种富水地层基坑渗透变形风险预测方法，其包括采用试验测定富水地层基坑的土体的抗渗粘聚力、土粒比重、土体孔隙率和土体内摩擦角，并计算基坑处的土体抗渗强度；根据土粒比重和土体内摩擦角，计算基坑发生渗透变形的水力坡降；判断水力坡降是否大于土体抗渗强度，且两者之间的差异是否大于预设值，若均为是，则基坑存在渗透变形风险，否则基坑不存在渗透变形风险。本方案的通过抗渗强度与水力坡降实现对渗透变形风险进行预测，综合考虑了渗流对基坑的影响，从而保证了预测的准确性。
Water-rich stratum foundation pit seepage deformation risk prediction method
富水地层基坑渗透变形风险预测方法
HAN FENG (author) / RONG SHUWEI (author) / HAN XIWANG (author) / LI XIAOGE (author) / CHEN SHICAI (author) / WANG JINGCHEN (author)
2024-05-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
G06N
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
,
Rechnersysteme, basierend auf spezifischen Rechenmodellen
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