"Guangdong-hong kong-macao greater bay area underground space conference and the fifth (shenzhen) urban underground space and integrated pipe corridor technology innovation forum" will be held in shenzhen from December 5 to 6, 2019. Leaders of shenzhen municipal housing and construction bureau, academician zhou fulin of Chinese academy of engineering, academician wang fuming and guests of relevant enterprises attended the forum.

On March 31, shenzhen rail transit line 14, ao da interval (ao bei station - dayun station) left line shield tunnel, baobao interval (baohe station - baolong station) left line shield tunnel successfully started on the same day.

On April 2, shenzhen metro line 12, the "pioneer wu" shield tunnel machine from the line 12 science and technology station shield tunnel receiver well broken out of the wall. This marks the smooth connection of the right line and the first shield tunnel section of the whole line of the kohai section (science and technology museum station - east station of the ocean garden). This is also the longest shield tunnel interval in the fourth phase of shenzhen rail transit project.