Improved structure of rectangular underground passage

• Main Authors: ZHANG XIAPENG, CHEN XIAOJIAN, LI RUI, GUO KAI, CHEN LIANG, CUI GUIBO, ZHANG JINGUI, LIU ZHANHUA, HU XIAO, CHENG ZHIHENG
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2022
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

The utility model discloses a rectangular underground passage improved structure which comprises a top plate, a bottom plate and side walls, the top plate, the bottom plate and the side walls form a rectangular frame structure, two sides of the bottom plate are provided with bottom plate widening sections, the bottom plate widening sections protrude out of the side walls, and the thickness of the bottom plate widening sections is the same as that of the bottom plate. The upper surface and the lower surface of the bottom plate are flush with the upper surface and the lower surface of the bottom plate widening section respectively. On the basis that the size of the rectangular section of the underground passage is not changed, the width of the bottom plate is increased by arranging the bottom plate widening section, that is, the two ends of the bottom plate are expanded outwards by a certain width with the position of an original side wall as a base point, a frame structure shaped like a Chinese character'vesse