We know a lot about hook nets now, so tell us about the role of hook nets in the application field. Today, let’s talk about how the hook net is handled in quicksand. Plastic-coated hook mesh inhibits sand flow phenomenon: foundation pit excavation drainage, assuming direct surface drainage, the soil will be driven upward, can produce sand flow phenomenon. Then the bottom of the earthwork gusher water, can not be removed deposition or other methods, direct discharge 9 well point precipitation, precipitation of all kinds of ways to artificially drop the groundwater level of well point precipitation, it not only adds pressure gradient.
Can also change tendency of groundwater activity event, though there are many sedimentary method, engineering properties should be considered, the excavation depth, soil characteristics and economic and other elements in consideration, shallow foundation pit, less than 4 per cent shallow light well point of economy, deep foundation pit should consider radiation well point, large deep foundation pit precipitation should be considered, and the deep well point.
Irrigation Wells and light as well as all kinds of improper scheme comparison, recognize the useful precipitation scheme of the seepage curtain of the seepage curtain, used to prevent or bind his groundwater seepage into the pit, the use of hook mesh stone curtain; Sometimes water and soil mixing piles with precipitation inside or outside the curtain are also needed, followed by a circle of water and soil mixing piles. The grid is a commonly used seepage prevention and water sealing structure. The water and soil retaining wall can also carry forward the achievements in holding and sealing, drilling grouting pile, pile retaining, and water and soil mixing pile sealing.
The action principle of hook mesh is similar to the slope protection system of surface layer such as spray anchor and soil nail wall. Hook mesh system features: its flexible characteristics can make the system to uniformly transfer part of the rendezvous load to the surrounding areas to give full play to the protection ability of the whole system, that is, part of the load, the role of the whole, so that hook mesh system can accept larger loads and reduce the anchorage force of a single bolt.
Post time: 22-08-22