Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Freeze-thaw cycle test method for foundation concrete influenced by underground water
The invention discloses a freezing and thawing cycle test method for foundation concrete influenced by underground water, which is characterized by comprising the following steps of: fixing a concrete test piece in a simulation box, and burying the concrete test piece in a simulation soil body material; the underground water infiltration condition is simulated by relying on infiltration water at the lower part of the simulation box; pressure is applied to the concrete test piece according to the pressure bearing size of building foundation concrete, and preparation work is completed; during the test, cold air is introduced for cooling until the permeated water body is frozen, after a period of time, the concrete test piece is heated by applying electric heat radiation above the concrete test piece until the frozen water body is unfrozen, and the freezing and thawing cycle is repeatedly formed until the end of the test time, so that the performance change of the building foundation concrete influenced by freezing and thawing is obtained. According to the invention, the freeze-thaw soil environment can be simulated more truly and reliably, and the freeze-thaw durability of the foundation concrete structure under the infiltration action of underground water is obtained; the method can be better used for building foundation safety assessment guidance, and the building safety performance in the freeze-thaw environment is improved.
本发明公开了一种受地下水影响的地基混凝土冻融循环试验方法，其特征在于，将混凝土试件固定在模拟箱内，埋设到模拟土体材料中；依靠对模拟箱下部渗入水模拟受地下水浸润情况；按照建筑物地基混凝土承压大小对混凝土试件施加压力，完成准备工作；试验时采用通入冷风冷却至渗入的水体形成冰冻，维持一段时间后，采用在混凝土试件上方施加电热辐射的方式加热至冰冻的水体完成解冻，以此重复形成冻融循环至试验时间结束，获得建筑物地基混凝土受冻融影响的性能变化。本发明能够更加真实可靠地模拟冻融土体环境，获得地基混凝土结构受地下水浸润作用情况下的冻融耐久性能；可以更好地用于建筑物地基安全评估指导，提高冻融环境建筑安全性能。
Freeze-thaw cycle test method for foundation concrete influenced by underground water
The invention discloses a freezing and thawing cycle test method for foundation concrete influenced by underground water, which is characterized by comprising the following steps of: fixing a concrete test piece in a simulation box, and burying the concrete test piece in a simulation soil body material; the underground water infiltration condition is simulated by relying on infiltration water at the lower part of the simulation box; pressure is applied to the concrete test piece according to the pressure bearing size of building foundation concrete, and preparation work is completed; during the test, cold air is introduced for cooling until the permeated water body is frozen, after a period of time, the concrete test piece is heated by applying electric heat radiation above the concrete test piece until the frozen water body is unfrozen, and the freezing and thawing cycle is repeatedly formed until the end of the test time, so that the performance change of the building foundation concrete influenced by freezing and thawing is obtained. According to the invention, the freeze-thaw soil environment can be simulated more truly and reliably, and the freeze-thaw durability of the foundation concrete structure under the infiltration action of underground water is obtained; the method can be better used for building foundation safety assessment guidance, and the building safety performance in the freeze-thaw environment is improved.
本发明公开了一种受地下水影响的地基混凝土冻融循环试验方法，其特征在于，将混凝土试件固定在模拟箱内，埋设到模拟土体材料中；依靠对模拟箱下部渗入水模拟受地下水浸润情况；按照建筑物地基混凝土承压大小对混凝土试件施加压力，完成准备工作；试验时采用通入冷风冷却至渗入的水体形成冰冻，维持一段时间后，采用在混凝土试件上方施加电热辐射的方式加热至冰冻的水体完成解冻，以此重复形成冻融循环至试验时间结束，获得建筑物地基混凝土受冻融影响的性能变化。本发明能够更加真实可靠地模拟冻融土体环境，获得地基混凝土结构受地下水浸润作用情况下的冻融耐久性能；可以更好地用于建筑物地基安全评估指导，提高冻融环境建筑安全性能。
Freeze-thaw cycle test method for foundation concrete influenced by underground water
一种受地下水影响的地基混凝土冻融循环试验方法
ZHANG KE (Autor:in) / ZHANG KAI (Autor:in) / BAO RUI (Autor:in) / ZHOU HAN (Autor:in) / YONG WEIXUN (Autor:in) / FU JUN (Autor:in) / LI SHE (Autor:in) / LIU CHANGCHENG (Autor:in) / LIU XIANGHUA (Autor:in) / LI NA (Autor:in)
20.01.2023
Patent
Elektronische Ressource
Chinesisch
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