# US 2017/0254041 A1 · Triangle unit assembly block and method using same of building landslide preventing draining retaining wall > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0254041 A1 - Document ID: US20170254041A1 - Status: Published application - Kind: A1 - Application number: 15/506,748 - Filed: 2015-09-02 - Published: 2017-09-07 - Earliest claimed: 2014-09-02 - Inventors: Heung Sik YU; Sung Kyun JIN - Web page: https://patentgrep.com/patent/US20170254041A1 ## CPC - E02D 29/02: Retaining or protecting walls (piers or quay walls E02B3/06) - E02D 17/20: Securing of slopes or inclines {(by soil E02D3/12; protection against snowslides or avalanches E01F7/04, E01F15/00; securing banks or like surfaces facing on bodies of water E02B3/12)} - E02D 17/205: {with modular blocks, e.g. pre-fabricated} - E02D 29/025: {made up of similar modular elements stacked without mortar} - E02B 3/14: Preformed blocks {or slabs for forming essentially continuous surfaces}; Arrangements thereof {(preassembled to constitute flexible mats E02B3/122; pavements E01C5/00)} - Y02A 10/11: Hard structures, e.g. dams, dykes or breakwaters - Y02A 10/23: Dune restoration or creation; Cliff stabilisation - Y02A 50/00: in human health protection, e.g. against extreme weather - E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)} - E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## Abstract A triangle unit assembly block comprises a body portion comprising mutually facing first and second side surfaces and mutually facing third and fourth side surfaces between a upper surface and a lower surface; a first fastening protrusion formed on the first side surface of the body portion; a second fastening protrusion formed on the second side surface of the body portion; a first fastening groove formed on the third side surface of the body portion; and a second fastening groove formed on the fourth side surface of the body portion, wherein the first and second fastening protrusions are disposed to correspond to each other and protrude in mutually opposite directions, and the first and second fastening grooves are disposed to be misaligned with one another to be concave in mutually facing directions. ## Claims ### Claim 1 A triangle unit assembly block comprising: a body portion comprising mutually facing first and second side surfaces and mutually facing third and fourth side surfaces between a upper surface and a lower surface; a first fastening protrusion formed on the first side surface of the body portion; a second fastening protrusion formed on the second side surface of the body portion; a first fastening groove formed on the third side surface of the body portion; and a second fastening groove formed on the fourth side surface of the body portion, wherein the first and second fastening protrusions are disposed to correspond to each other and protrude in mutually opposite directions, and the first and second fastening grooves are disposed to be misaligned with one another to be concave in mutually facing directions. ### Claim 2 (depends on 1) The triangle unit assembly block of claim 1, wherein the area of the first side surface of the body portion is equal to the area of the second side surface of the body portion, and is larger or smaller than the area of the third or fourth side surface of the body portion. ### Claim 3 (depends on 1) The triangle unit assembly block of claim 1, wherein the first and second fastening protrusions are formed on both sides respectively from the upper surface to the lower surface of the body portion, and a hemispherical protrusion line protruding in a perpendicular direction to the third side surface or the fourth side surface of the body portion is formed. ### Claim 4 (depends on 1) The triangle unit assembly block of claim 1, wherein the first and second fastening grooves are formed along both inner sides respectively from the upper surface to the lower surface of the body portion, and a hemispherical groove line recessed in a perpendicular direction to the first side surface or the second side surface is formed. ### Claim 5 (depends on 1) The triangle unit assembly block of claim 1, wherein the areas of the first and second fastening grooves are larger than the first and second fastening protrusions. ### Claim 6 (depends on 1) The triangle unit assembly block of claim 1, wherein the first and second protrusions are fastened to a first fastening groove or second fastening groove of an adjacent assembly block. ### Claim 7 (depends on 1) The triangle unit assembly block of claim 1, wherein a plurality of convex portions are formed to be disposed at regular intervals on the upper surface of the body portion. ### Claim 8 (depends on 7) The triangle unit assembly block of claim 7, wherein, a plurality of convex portions are formed on the upper surface of the body part, and the upper and lower surfaces of the body portion are flat planes, and the side surface of the convex portion is an inclined surface. ### Claim 9 (depends on 8) The triangle unit assembly block of claim 8, wherein between adjacent convex portions, the first and second fastening grooves are disposed. ### Claim 10 Method of building a landslide preventing draining retaining wall using a triangle unit assembly block comprising first and second fastening protrusions disposed to correspond to side surfaces mutually facing each other, and first and second fastening grooves disposed to be misaligned on side surfaces mutually facing each other, wherein the method comprises: forming a triangle unit assembly by inserting a first fastening protrusion of a first assembly block into a first fastening groove of a second assembly block, inserting a second fastening protrusion of a second assembly block into a first fastening groove of a third assembly block, and inserting a first protrusion of the third assembly block into a second fastening groove of the first assembly block; forming a horizontal assembly by connecting at least two triangle unit assemblies in a horizontal direction; and forming a structure while stacking adjacent triangle unit assemblies to be misaligned with each other, by stacking at least two horizontal assemblies in a vertical direction.