Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a method for monitoring deep foundation pit engineering under the action of freeze-thaw cycle. Comprising the steps that a calculation model of deep foundation pit engineering under the freezing and thawing cycle effect is established through finite element numerical simulation software; establishing an actual measurement system of a foundation pit site; the relation between the internal force of the supporting structure and the frost heaving force is obtained through numerical calculation through a finite element calculation model; the relation between the external temperature and the axial force of the supporting system is obtained through an actual measurement system on the foundation pit site; calculating the change condition of the internal force of the supporting structure in the overwintering period from the perspective of simulating engineering practice; arrangement of an actual measurement system; actual measurement arrangement of temperature measurement; actual measurement arrangement of anchor rod stress-strain measurement; and actually measuring the deformation of the foundation pit. According to the method, theoretical analysis, field actual measurement and finite element simulation results are combined, new measures of the safety protection and reinforcement technology of deep foundation pit construction under the freezing and thawing cycle effect are provided, and effective deep foundation pit supporting safety guarantee measures are systematically constructed through combination of soil body dewatering and drainage, heat preservation, supporting structure system improvement and the monitoring technology.
本发明是一种冻融循环作用下深基坑工程的监测方法；包括通过有限元数值模拟软件建立冻融循环作用下深基坑工程的计算模型；建立基坑现场的实测系统；通过有限元计算模型通过数值计算得出支护结构内力与冻胀力的关系；通过基坑现场的实测系统得出外界温度与支护系统轴力的关系；从对工程实际进行模拟的角度，计算支护结构内力越冬期间的变化情况；实测系统的布置：温度测量的实测布置；锚杆应力应变测量的实测布置；基坑变形的实测。本方法结合理论分析、现场实测和有限元模拟结果，提出冻融循环作用下深基坑施工的安全防护与加固技术的新措施，从土体降排水、保温、支护结构系统改进和监测技术的结合来系统构建有效的深基坑支护安全保证措施。
The invention relates to a method for monitoring deep foundation pit engineering under the action of freeze-thaw cycle. Comprising the steps that a calculation model of deep foundation pit engineering under the freezing and thawing cycle effect is established through finite element numerical simulation software; establishing an actual measurement system of a foundation pit site; the relation between the internal force of the supporting structure and the frost heaving force is obtained through numerical calculation through a finite element calculation model; the relation between the external temperature and the axial force of the supporting system is obtained through an actual measurement system on the foundation pit site; calculating the change condition of the internal force of the supporting structure in the overwintering period from the perspective of simulating engineering practice; arrangement of an actual measurement system; actual measurement arrangement of temperature measurement; actual measurement arrangement of anchor rod stress-strain measurement; and actually measuring the deformation of the foundation pit. According to the method, theoretical analysis, field actual measurement and finite element simulation results are combined, new measures of the safety protection and reinforcement technology of deep foundation pit construction under the freezing and thawing cycle effect are provided, and effective deep foundation pit supporting safety guarantee measures are systematically constructed through combination of soil body dewatering and drainage, heat preservation, supporting structure system improvement and the monitoring technology.
本发明是一种冻融循环作用下深基坑工程的监测方法；包括通过有限元数值模拟软件建立冻融循环作用下深基坑工程的计算模型；建立基坑现场的实测系统；通过有限元计算模型通过数值计算得出支护结构内力与冻胀力的关系；通过基坑现场的实测系统得出外界温度与支护系统轴力的关系；从对工程实际进行模拟的角度，计算支护结构内力越冬期间的变化情况；实测系统的布置：温度测量的实测布置；锚杆应力应变测量的实测布置；基坑变形的实测。本方法结合理论分析、现场实测和有限元模拟结果，提出冻融循环作用下深基坑施工的安全防护与加固技术的新措施，从土体降排水、保温、支护结构系统改进和监测技术的结合来系统构建有效的深基坑支护安全保证措施。
Method for monitoring deep foundation pit engineering under action of freezing and thawing cycle
一种冻融循环作用下深基坑工程的监测方法
14.03.2023
Patent
Elektronische Ressource
Chinesisch
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
/
G06F
ELECTRIC DIGITAL DATA PROCESSING
,
Elektrische digitale Datenverarbeitung
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