公开(公告)号：US11599692B2

公开(公告)日：2023-03-07

申请号：US17023385

申请日：2020-09-17

Applicant: Southwest Jiaotong University ,  SOUTHWEST JIAOTONG UNIVERSITY CHENGDU DESIGN INSTITUTE CO., LTD.

Inventor： Zhixiang Yu ,  Liru Luo ,  Yuntao Jin ,  Liping Guo ,  Hu Xu ,  Xin Qi ,  Lei Zhao ,  Shichun Zhao

IPC: G06F30/20 ,  G06F111/10 ,  E01F7/04 ,  E02D17/20

Abstract: A calculation method of limit load, deformation and energy dissipating of a ring net panel of a flexible protection net, includes step (1): determining geometrical parameters of the ring net, connection type of steel rings, and diameter of steel wires; step (2): determining a loading rate, a loaded region and a boundary condition of the ring net panel; step (3): obtaining basic mechanical parameters of materials through tests, and establishing a critical damage criterion of the ring net panel; step (4): establishing an equivalent calculation model of a ring net panel based on a fiber-spring unit; and step (5): calculating a puncturing displacement, a puncturing load and energy dissipating of the ring net panel. The method adopts a calculation assumption of load path equivalence.

公开(公告)号：US11414821B2

公开(公告)日：2022-08-16

申请号：US17009783

申请日：2020-09-02

Applicant: Southwest Jiaotong University

Inventor： Zhixiang Yu ,  Liru Luo ,  Yuntao Jin ,  Liping Guo ,  Hu Xu ,  Xin Qi ,  Lei Zhao ,  Shichun Zhao

IPC: E01F7/04 ,  E04H17/02

Abstract: An expandable modular energy-dissipation protection net unit group includes support columns each provided at each of two ends of each support column with a first horizontal longitudinal rotation reversing device on the left side, a second horizontal longitudinal rotation reversing device on the right side and a transverse rotation reversing device on the bottom; a transverse endless support rope, a longitudinal endless support rope and connectors. The transverse endless support rope is wound on the transverse rotation reversing device. The longitudinal endless support rope is wound on the first horizontal longitudinal rotation reversing device and the second horizontal longitudinal rotation reversing device adjacent. A metal net panel is tied by the plurality of connecting members and hung on the transverse endless support rope and the longitudinal endless support rope.

公开(公告)号：US12146281B2

公开(公告)日：2024-11-19

申请号：US17200924

申请日：2021-03-15

Applicant: Southwest Jiaotong University

Inventor： Zhixiang Yu ,  Lijun Zhang ,  Liru Luo ,  Yuntao Jin ,  Lei Zhao ,  Xin Qi ,  Shichun Zhao

IPC: E01F7/04

Abstract: A throwing toughness buffer mesh unit for a rockfall protection and a design method of a critical throwing angle thereof are provided. The throwing toughness buffer mesh unit includes a cable column, wherein the cable column is provided with a sliding device on a top end and connected to a foundation structure via a hinged support at a bottom; a support rope, wherein the support rope is connected to the sliding device on the cable column in a sliding way and provided with a spring buffer on an end, wherein the spring buffer is obliquely anchored to a rock mass base near a protection structure; a protection net, which is obliquely hung on the support rope via a connector. A pavement inclination angle of the protection net is adjusted to a critical throwing angle by adjusting a height difference between cable columns to control a throwing track of falling rocks.

公开(公告)号：US12104338B2

公开(公告)日：2024-10-01

申请号：US17485427

申请日：2021-09-26

Applicant: Southwest Jiaotong University

Inventor： Zhixiang Yu ,  Lijun Zhang ,  Gaohong Ye ,  Liru Luo ,  Xu Hu ,  Xin Qi ,  Lei Zhao ,  Shichun Zhao

IPC: E01F7/04 ,  E02D17/20 ,  E04H17/04

CPC classification number: E01F7/045 ,  E02D17/202 ,  E04H17/05

Abstract: A combined type flexible glass net system used for protection against full-particle falling rocks on plank roads in scenic spots includes a supporting layer, an intercepting throwing layer and a flexible glass net isolating layer, wherein the supporting layer is longitudinally arranged above a protective area along a mountain, and includes a supporting steel frame and an oscillating type supporting rod; the intercepting throwing layer is supported on the supporting layer, and includes metal meshes, an along-cross-slope lower connecting rope, an along-cross-slope upper connecting rope, an along-slope connecting rope and a reinforcing rope; and the flexible glass net isolating layer includes glass plates, glass net supporting cables and a hoop type hinged piece, wherein the glass plates are connected to the glass net supporting cables through the hoop type hinged piece, and the glass net supporting cables are hung below the supporting steel frame.

公开(公告)号：US10908178B1

公开(公告)日：2021-02-02

申请号：US17008666

申请日：2020-09-01

Applicant: Southwest Jiaotong University

Inventor： Zhixiang Yu ,  Hu Xu ,  Linxu Liao ,  Xin Qi ,  Lei Zhao ,  Shichun Zhao

IPC: G01P15/00 ,  G01P3/00 ,  B33Y80/00 ,  B64C39/02 ,  G01B11/24

Abstract: An arbitrary-shaped fabricated test block for a high-steep slope rolling stone test includes a connecting square barrel and test block bodies. The connecting square barrel is formed by enclosing steel plates, the steel plates are provided with connecting grooves on a periphery of the steel plates, and the connecting grooves are provided with connecting groove bolt holes. The test block bodies are printed on printing bases by 3D printing technology, connecting plates are fixedly arranged on the printing bases, connecting plate bolt holes are formed in the connecting plates, and high-strength bolts penetrate through the connecting groove bolt holes and the connecting plate bolt holes to connect the test block bodies to the connecting square barrel. A sensor box is fixedly arranged on an inner side of the connecting square barrel, and a sensor is arranged in the sensor box.