Study On Foundation Trench Construction Pre-stress Anchor

With the development of high-rise buildings,More and more support deep excavation works ,Comprehensive geological conditions of Guangzhou City, in addition to the seaside with sandy soil and soft mud outside pil,Most of the relatively good geographical geotechnical conditions,But mainly weathered rock to more rock fracture,are in quite good condition,except for the sandy soil and oosl soil along sea sides But the development of rock cracks and breaking zones and unstable lamprophyre lst,so blasting is needed during constructions of foundation trenchPrestressed anchor wall is the wall plate steel rod and anchor plates and filler composition.Steel rod ends are connected with the lateral plane and end-plate connections anchored by steel rod and prestressed,Fill in the anchor buried on the friction plate to maintain the stability of the retaining wall support mechanism.Pretreatment can take full advantage of the local rock layers or the stability of their own, linked with the excavation layered reinforced concrete spraying.soil and debris to avoid the small joints broken rock slope collapses, and earth pressure anchor plate passed by the concentrated suspension bolt,bolt through the anchoring force of earth pressure balance.Bolt anchoring force in the pit appeared before displacement, can play a role that is imposed by the prestressed,Stress and jet by bolting through the concrete and reinforcement to force adjustmentthus forming an anchor piles with a similar structure as a whole support system, the role they play in restricting pit displacWall prestressed anchor support technology with economic, efficient, safe and the advantages it can provide open space for the construction.Construction excavator and improve the efficiency and quality.Anchor Construction machinery and equipment operating space, the venue for all kinds of terrain and use the same time, it does not monopolize the period.With the excavation simultaneously, flowing, saving time limit bolt and spraying concrete surface instead of the traditional steel braces and piles (concrete piles.steel sheet pile), can save a lot of steel concrete and other building...