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我国经济在快速发展过程当中,资源环境的压力越来越大,特别是水资源越来越短缺,导致地下水超采,地面沉降。同时,现在我们对地表水回收利用率不高,地面大量硬化,大多数地表水直接进入排水管网排掉了。我国的地下管网总长度超过了15万公里,这些地下管网都是隐蔽工程,渗漏率很高,其中,城市供水的管网渗漏率最高达到30%,这也是非常大的隐患。那么大量的水,就会通过地下管网的渗漏,通过向这些地下空间的渗漏,将大量的泥沙带走,形成安全隐患,对人类生存区间的安全构成巨大威胁。最
In the process of rapid economic development in our country, the pressure on resources and environment is getting greater and greater, especially the shortage of water resources, which leads to over-exploitation of groundwater and land subsidence. At the same time, we now have a low recycling rate of surface water and a large amount of ground hardening. Most of the surface water is drained directly into the drainage network. The total length of underground pipelines in our country exceeds 150,000 km. These underground pipe networks are all concealed works with high leakage rates. Among them, the leakage rate of urban water supply pipe network is up to 30%, which is also a very big hidden danger. So a lot of water, through the leakage of underground pipe network, through to the leakage of these underground space, a large amount of sediment away, the formation of security risks, pose a huge threat to the safety of human living range. most