Wenzhou University

Wei Qin

Jun Wang

Junfeng Ni

Ziyang Gao

Dong Wang

Ning Fan

Jinrong Zhang

Xudong Dong

Yonggang Hu

Xin Ye

Yuqi Pan

Liujun Zhang

Guoliang Dai

Chaohao Pan

The present disclosure relates to a meta-learning strategy based method for early warning of attenuation of a bearing capacity of a soft soil pile foundation. The method includes: S1, building a loop loading test device; S2, setting up a data set; S3, building and training a base model; S4, introducing a meta-learning strategy into the base model obtained in S3, inputting a pre-training data set for pre-training, and obtaining a pre-trained model; and S5, inputting a target data set into the pre-training data set for pre-training, and obtaining a model prediction result. The method constructs an intelligent early warning model with fast adaptability, such that the intelligent early warning model can make full use of existing engineering experience.

Meta-learning strategy based method for early warning of attenuation of bearing capacity of soft soil pile foundation

Disclosed is a wireless detection device for quickly positioning a throw-fill stone falling depth and long-term settlement in blasting silt-squeezing construction, including a gravity ball and a signal receiving, processing and controlling system. The gravity ball is internally provided with test mechanisms, signal collecting and transmitting apparatuses and batteries. Also disclosed is a wireless detection method implemented using the above wireless detection device. The device and the method can detect the throw-fill stone falling depth and distribution situation in a blasting silt-squeezing construction process in real time, so that the effect evaluation and quality control of blasting silt-squeezing can be monitored in real time, the situation that the falling of throw-fill stones is incomplete can be acquired in time, monitoring data support can be provided for corresponding processing measures, and long-term settlement and other monitoring can be carried out.

Wireless detection device and wireless detection method for quickly positioning throw-fill stone falling depth and long-term settlement in blasting silt-squeezing construction

The present disclosure discloses a device for centrifuge testing of a driven pile in different installation and pull-out modes, including a supporting system, a pile driving system, a pile-soil system and a measurement and acquisition system. The present disclosure further provides a method for operating the device for centrifuge testing of a driven pile in different installation and pull-out modes. The present disclosure can perform geotechnical centrifuge testing of a driven pile through penetration in different installation modes and pull-out in different pull-out modes, and provide the effective test device and method for study of a pile-soil mutual dynamic response during a whole process of penetration and a process of pull-out of the driven pile. Moreover, pile-soil deformation characteristics and the like during the processes of penetration and pull-out can be visually observed through a high-speed camera or a digital camera, and the pull-out and penetration can be tested separately.

Device for centrifuge testing of driven pile in different installation and pull-out modes and operation method therefor

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Wenzhou, China

Wei Qin