US 11,835,508 B2
Model test device for ground collapse caused by pipeline leakage
Fei Tan, Wuhan (CN); Zhongmin Mao, Wuhan (CN); Yuyong Jiao, Wuhan (CN); Lingling He, Wuhan (CN); Jiahe Lv, Wuhan (CN); Junpeng Zou, Wuhan (CN); Yi Cheng, Wuhan (CN); and Fubin Tu, Wuhan (CN)
Assigned to CHINA UNIVERSITY OF GEOSCIENCES, Wuhan (CN)
Filed by China University Of Geosciences, Wuhan (CN)
Filed on Apr. 20, 2021, as Appl. No. 17/235,685.
Claims priority of application No. 202011408855.X (CN), filed on Dec. 3, 2020.
Prior Publication US 2022/0179122 A1, Jun. 9, 2022
Int. Cl. G01N 33/24 (2006.01); G01N 3/36 (2006.01); G01V 99/00 (2009.01)
CPC G01N 33/24 (2013.01) [G01N 3/36 (2013.01); G01V 99/005 (2013.01); G01N 2203/0067 (2013.01); G01N 2203/0286 (2013.01); G01N 2203/0641 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A model test device for ground collapse caused by pipeline leakage, comprising: a sand box (1), a pipeline water circulation device (2), a groundwater replenishment device (3), a water storage tank (4) and a water head measuring pipe group (5);
the sand box (1) comprises a sand box body (11) and a mesh sieve plate (12); the sand box body (11) is a cubic uncapped structure; there are two mesh sieve plates (12) which are both parallel to the same side of the sand box body (11); the mesh sieve plate (12) is fixedly connected to the inner wall of the sand box body (11) and divides an inner cavity of the sand box body (11) into three cavities, which are two identical penetration cavities and one test cavity, respectively; the penetration cavity is arranged on both sides of the test cavity;
the two opposite side walls of the test cavity are provided with a tunnel construction hole (14) and a plurality of pipeline mounting hole groups (15), respectively; the pipeline mounting hole groups (15) are communicated to the pipeline water circulation device (2);
one of the side walls of the test cavity is provided with a plurality of rows of water head measuring hole groups (16); each row is provided with a plurality of the water head measuring hole groups (16), the water head measuring hole groups (16) are communicated to the water head measuring pipe groups (5);
the side wall of the penetration cavity is opened and provided with a water injecting port (13), the groundwater replenishment device (3) is communicated to the penetration cavity through the water injecting port (13); components connected by the two penetration cavities are completely correspondingly arranged;
the water storage tank (4) is a cubic uncapped structure; there are two groups of the groundwater replenishment devices (3) which are communicated to the water storage tank (4), respectively; the bottom of the side of the water storage tank (4) is opened and provided with a water inlet hole, the groundwater replenishment device (3) is communicated to the water storage tank (4) through the water inlet hole.