Patents by Inventor Ningning Zhu

Ningning Zhu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for constructing large-span station with two-wing open type half-cover excavation and half-reverse construction
    Patent number: 11959243
    Abstract: A method for constructing a large-span station by two-wing open type semi-covered excavation and semi-reverse construction, is divided into three stages of excavation. First, excavate a first-stage inner small foundation pit, then excavate a second-stage annular foundation pit within the first-stage retaining piles and outside the range of the first-stage inner small foundation pit, and finally excavate a third-stage semi-covered excavation foundation pit below the first-stage inner small foundation pit and the second-stage annular foundation pit. By setting graded retaining piles, middle upright post piles, middle top plates, local waist beams and local concrete supports in the soil-rock combination strata, so that the force transfer between the foundation pit enclosure and the station main body structures and the underlying rock layer is clear and reliable, and a stable frame structure is achieved.
    Type: Grant
    Filed: July 24, 2023
    Date of Patent: April 16, 2024
    Assignees: Beijing Urban Construction Design & Development Group Co., Limited
    Inventors: Fucai Hua, Gang Lei, Zhihui Yang, Jianye Zhu, Liang Zhang, Ning Li, Yanan Dong, Ningning Li
  • METHOD FOR CONSTRUCTING LARGE-SPAN STATION WITH TWO-WING OPEN TYPE HALF-COVER EXCAVATION AND HALF-REVERSE CONSTRUCTION
    Publication number: 20240076848
    Abstract: A method for constructing a large-span station by two-wing open type semi-covered excavation and semi-reverse construction, is divided into three stages of excavation. First, excavate a first-stage inner small foundation pit, then excavate a second-stage annular foundation pit within the first-stage retaining piles and outside the range of the first-stage inner small foundation pit, and finally excavate a third-stage semi-covered excavation foundation pit below the first-stage inner small foundation pit and the second-stage annular foundation pit. By setting graded retaining piles, middle upright post piles, middle top plates, local waist beams and local concrete supports in the soil-rock combination strata, so that the force transfer between the foundation pit enclosure and the station main body structures and the underlying rock layer is clear and reliable, and a stable frame structure is achieved.
    Type: Application
    Filed: July 24, 2023
    Publication date: March 7, 2024
    Applicants: Beijing Urban Construction Design&Development Group Co., Limited
    Inventors: Fucai HUA, Gang LEI, Zhihui YANG, Jianye ZHU, Liang ZHANG, Ning LI, Yanan DONG, Ningning LI
  • Dynamic matching method and system for improving wind power generation efficiency at medium and low wind speeds
    Patent number: 11073132
    Abstract: Disclosed is a dynamic matching method for improving wind power generation efficiency at medium and low wind speeds.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: July 27, 2021
    Inventors: Yingtang Li, Ningning Zhu, Yingyong Li, Xiaojian Zhou, Penggao Chen, Bin Song
  • DYNAMIC MATCHING METHOD AND SYSTEM FOR IMPROVING WIND POWER GENERATION EFFICIENCY AT MEDIUM AND LOW WIND SPEEDS
    Publication number: 20200309090
    Abstract: Disclosed is a dynamic matching method for improving wind power generation efficiency at medium and low wind speeds.
    Type: Application
    Filed: November 4, 2019
    Publication date: October 1, 2020
    Inventors: Yingtang Li, Ningning Zhu, Yingyong Li, Xiaojian Zhou, Penggao Chen, Bin Song