摘要：【中文】本发明公开了一种基于间接监测数据的设备剩余寿命不完美维护预测方法，包括如下步骤：对设备的物理结构进行分析，识别出能够对设备退化过程进行描述的关键参数；收集监测得到的关键参数退化数据；使用收集所得数据对退化模型的参数进行估计；根据估计的参数值，建立基于间接监测数据的设备剩余寿命不完美维护预测模型；依据建立的预测模型，利用收集到的退化数据对设备剩余寿命进行预测。本发明相较于传统方法降低了试验的经济成本、缩短了研究周期，并且能够更丰富、动态地反映环境对设备的影响，从而提高了考虑不完美维护实际情况下的设备剩余寿命预测的准确度。 【EN】The invention discloses a method for predicting imperfect maintenance of residual service life of equipment based on indirect monitoring data, which comprises the following steps: analyzing the physical structure of the equipment, and identifying key parameters capable of describing the equipment degradation process; collecting monitored key parameter degradation data; estimating parameters of the degradation model using the collected data; establishing an imperfect maintenance prediction model of the residual service life of the equipment based on indirect monitoring data according to the estimated parameter values; and predicting the residual life of the equipment by using the collected degradation data according to the established prediction model. Compared with the traditional method, the method has the advantages that the economic cost of the test is reduced, the research period is shortened, and the influence of the environment on the equipment can be more abundantly and dynamically reflected, so that the accuracy of the prediction of the residual service life of the equipment under the actual condition of considering the imperfect maintenance is improved.

摘要：【中文】本发明属于建筑材料技术领域，具体涉及一种低温钢筋套筒连接用灌浆料及其制备方法和应用。本发明提供了一种低温钢筋套筒连接用灌浆料，以质量份数计，包括以下组分：凝胶材料100份；骨料100份；矿物掺合料22～25份；减水剂0.5～0.8份；消泡剂0.08～0.12份；早强剂0.05～0.08份；缓凝剂0.02～0.04份；塑性膨胀剂0.03～0.05份；防冻剂0.05～0.15份。实验结果表明，本发明提供的低温钢筋套筒连接用灌浆料适用‑5～10℃的施工环境，流动性达330mm；施工固化后抗压强度达96.5MPa；3h竖向膨胀率达到0.08％，具有良好的强度和膨胀率。 【EN】The invention belongs to the technical field of building materials, and particularly relates to grouting material for low-temperature steel bar sleeve connection, and a preparation method and application thereof. The invention provides a grouting material for low-temperature steel bar sleeve connection, which comprises the following components in parts by mass: 100 parts of a gel material; 100 parts of aggregate; 22-25 parts of a mineral admixture; 0.5-0.8 part of a water reducing agent; 0.08-0.12 part of defoaming agent; 0.05-0.08 part of an early strength agent; 0.02-0.04 parts of retarder; 0.03-0.05 part of plastic expanding agent; 0.05-0.15 part of an antifreezing agent. Experimental results show that the grouting material for low-temperature steel bar sleeve connection is suitable for construction environment at-5-10 ℃, and the fluidity reaches 330 mm; the compressive strength reaches 96.5MPa after construction and solidification; the vertical expansion rate of 3h reaches 0.08%, and the composite material has good strength and expansion rate.