Tel Aviv built on Sand

 

Tel Aviv is built on sand and sandstone, and the recent winter rains have washed away much of its substrate. A big hole has appeared at the crossing of Ibn Gvirol and Kaplan streets (pic). Tel Aviv was built in a hurry and did not develop organically over centuries like old European cities. I wonder how this process can be stopped and reversed. Maybe improving the subterranean drainage system could help? Or injecting some kind of synthetic glue? Refilling the open spaces under the pavement?