steel shot concrete 中文意思是什麼
steel shot concrete
解釋
鋼砂混凝土-
Combined with the real example of monitoring pressure on the supporting system in the long span underground space of dk7 + 692 section at jiao - xin line of chongqing light railway, it is set forth the methods about choosing the support system and its parameter, digging methods of underground space, measuring and testing methods for the stress of the support system ; the testing results and variation pattern were analyzed for the stress of the initial supporting i - steel axial stress of bolt, stress of shot - concrete, supporting pressure of temporary i - steel and stress of steel of the second lining, then, the reason for deformation of the support system induced by sharp increase of i - steel was determined
摘要結合重慶市輕軌較新線大坪車站大跨度地下空間dk7 + 692斷面施工支護體應力監測的工程實例，闡述了該大跨度地下空間支護結構的參數選擇、地下空間的開挖方法、支護體結構的應力量測方法及測試手段；分析了支護體初期支護工字鋼拱應力、錨桿軸力、噴射混凝土內應力、臨時工字鋼支撐應力、二次襯砌鋼筋應力等測試結果和變化規律；確定了工字鋼拱應力急劇增大而可能引起支護體系失穩的原因。 -
The supporting mechanism of pre - stress anchor is given in following sentences in this paragraph : make full use of sectional stability, put - up steel - net shot concrete to the stratified earth as the trench is being excavated, and by this means, the little liding of soil layers and small broken slumps of rock slopes can be avoided
預應力錨板的支護機理：充分利用巖土層自身或預處理的局部的穩定性，隨基坑開挖分層掛鋼筋網噴射砼，以避免土層幫片及巖石邊坡小的節理破碎滑塌，並把土壓力傳給錨板，由錨桿集中受力，通過錨桿的錨固力平衡土壓力。 -
Furthermore, the pressure of soil can be exerted on anchor boards, so the stressed anchor can balance the pressure of soi1 through the anchoring. before the trench displaces, the anchoring pressure begins to work through the exertion of pre - stress. meanwhile, the stress pressure of anchor changes and is adjusted through shot concrete and its stressed steel. so the whole supporting system, which is similar with the pile - anchor supporting system, is finally formed, and it can limit the displacement of trenches
錨桿的錨固力在基坑出現位移前，通過雨應力的施加即得以發揮作用，錨桿的受應生變化並通過噴射硅及其中的受力筋得以調整，從而形成一個與樁一錨結構近似的整體支護系統，起到限制基坑位移的作用。 -
Meanwhile, it does not need a extra time to be carried out. it can continuously work during the excavation of trenches, so whole work cycle can be reduced. anchors and layers of shot concrete have replaced the traditional steel frames and piles, including concrete piles, steel piles, and they can largely economize construction materials, such as steel and concrete, reduce the amount of soil that would be excavated out, and improve work conditions
錨桿施工機械及設備作業空間小，可為各種地形及場地使用，同時，它不獨占工期，而隨基坑開挖同步、流水進行，節約工期;用錨桿及噴射硅面層代替傳統的鋼支撐和樁（硅樁、鋼板樁） ，能夠大量節省鋼材、硅等建材，減少土方開挖量且能改善施工條件;其次錨桿的預加應力可以通過抗拔實驗來獲得。
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