Z section sheet piles(MMZ16-1 ,MMZ16-2,MMZ17-1,MMZ17-2, MMZ17-3, MMZ17-4,MMZ17-5,MMZ17-6)

Port is a conventional word Z section sheet piles MMZ16-1 which includes a typical MMZ16-2 conflict MMZ17-1 between human act ion MMZ17-2 and environment. Port and environment are of influence each other. Port programming, design and operation constructed must adapt to these factors in the future. At present, both domestic and foreign ports have respectively proposed the notions of "eco-ports", "green ports", "environment-friendly ports" and others concepts of green ports, and actively MMZ 16-1 conduct green port construction, MMZ 16-2 which have aroused public concern. But it has not reached an authoritative MMZ 17-1 and detailed definition MMZ 17-2 of green port.

Land degradation has MMZ 17-3 drastically changed Icelandic ecosystems since the country was settled in the 9th century. The MMZ 17-4 degradation was mainly caused by a combination of cold and MMZ 17-5 moist climate together with MMZ 17-6 unsustainable land use, highly erodible volcanic soil and severe erosion (Arnalds 2005). The degradation processes often result in sparsely vegetated land with shallow and poor soils or barren land (desert) with low organic matter in the soil (Arnalds and Kimble 2001).

There sheet pile MMZ17-3 is great impressive MMZ17-4 influence on the MMZ17-5 environment in the MMZ17-6 development of port. Nowadays, Prevention and protection of environment influence is having improved by many countries. Environmental risk identification, which means the process of identifying the existence of environmental risk and specifying its properties, is to identify all kinds of dangerous factors and major hazard installations in the construction and manufacture of project. Environmental risk exists with diverse forms in the construction and manufacture of project so that it is difficult to identify the potential environmental risk. Taking some specific methods to identify it, and determining the categories and direct factors of the cause of accidents, the process above is called environmental risk identification.