Less than 6 mm groundwater rebound average ground settlement in Shanghai

Was informed that the new

in Shanghai on 11 May, a reporter from the 11 held a "National City Water Saving Publicity Week" Shanghai week, Shanghai grew at an average annual rate of land subsidence in 2003 from more than 10 millimeter control in 2013 to less than 6 mm.

according to the introduction, Shanghai current groundwater management increasingly strict, from 2003 onwards gradually strict management system of groundwater, groundwater exploitation amount of compression in 10 years 92%, the quantity of deep well compressed 76%.

Shanghai began the exploitation of groundwater from 1860, over exploitation of groundwater has been regarded as the cause of this city is one of the main causes of ground settlement. According to local media reports, Shanghai 1921 in leveling found the ground subsidence phenomenon, settling on century 50 time evening has obvious. From 1921 to Cheap soccer jerseys country 1965, Shanghai accumulated settlement of about 1.69 meters.

The

from 1965 onwards, Shanghai to control groundwater exploitation. The approach taken is to aquifer recharge water, the underground water level elevation, soil, to restore the elasticity of ground subsidence control objective.

data shows, from 2009 to 2013, Shanghai city construction and reconstruction of 25 emergency water supply (and return) deep, and at the same time as the facilities for prevention and control of ground settlement of artificial recharge. cheap NBA Jerseys In July 1, 2013, "started the implementation of control and management regulations" of the land subsidence in Shanghai City, Cheap Beanies Shanghai City, Cheap college basketball jerseys groundwater exploitation of total amount control of Cheap shirts legal support.

Introduction

Shanghai water department, Shanghai since 2011 since the implementation of groundwater recharge amount greater than the amount of groundwater exploitation, the sharp rebound, the annual average ground settlement is less than 6 mm.

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(less than 6 mm annual ground subsidence in Shanghai city Shanghai original title: Water Saving Publicity Week:

)