公开(公告)号：US20250092627A1

公开(公告)日：2025-03-20

申请号：US18764170

申请日：2024-07-04

Applicant: SHANDONG UNIVERSITY ,  SHANDONG JIANZHU UNIVERSITY

Inventor： Peizhi ZHUANG ,  Kangxu WANG ,  He YANG ,  Jingjing YIN ,  Xiuguang SONG ,  Chaoji LI ,  Chong ZHOU ,  Yuanshun QIAN ,  Chao LI ,  Mingpeng LIU

IPC: E02D5/36 ,  E02D15/04 ,  E21B44/00 ,  G06N3/08

Abstract: The present invention relates to pile foundations and provides an intelligent construction control method and system for jet grouting piles based on stratum information inversion. This method integrates multi-source sensing components and local transmission to perceive real-time drilling information to a data integration terminal. Using engineering soil layer data as training samples, a machine learning algorithm correlates perception information with geological conditions, judging and outputting stratum conditions in real time. An XGBoost model quickly and accurately identifies soil layers at the site. Based on big data matching of a cloud platform, an optimal construction parameter database is established, and the optimal combination of parameters is acquired through algorithm matching. A variable-frequency and variable-speed pressure adjusting device links a piling machine intelligent control system with other subsystems to achieve intelligent control, reducing material consumption and improving pile quality and efficiency.

公开(公告)号：US20250137476A1

公开(公告)日：2025-05-01

申请号：US18766679

申请日：2024-07-09

Applicant: SHANDONG UNIVERSITY

Inventor： Lei LI ,  Bin ZOU ,  Jikai LIU ,  Peizhi ZHUANG ,  Chengyu LI

IPC: F15B21/00 ,  F15B13/02

Abstract: The invention relates to a hydraulic system, method, and integrated valve block for a slewing mechanism, comprising a first and second cylinder. The rod cavity of the first cylinder connects to the rodless cavity of the second cylinder through the first oil circuit, first hydraulic control check valve, and fourth oil circuit. The rodless cavity of the first cylinder connects to the rod cavity of the second cylinder through the second oil circuit, second hydraulic control check valve, and third oil circuit. The first oil circuit is connected to the directional valve through the sixth oil circuit, and the second oil circuit is connected to the directional valve through the fifth oil circuit. The directional valve is connected to the hydraulic pump and oil tank. The first hydraulic control check valve is installed between the first and fourth oil circuits, and the second hydraulic control check valve is between the second and third oil circuits. The check valves' control circuits connect to the sixth oil circuit, ensuring braking stability of the slewing mechanism.