本文選題：公路 + 邊坡��； 參考：《公路》2017年04期

【摘要】：在工程地質(zhì)條件較差、比較松軟的白堊紀(jì)粉砂巖和紅砂巖中,含砂質(zhì)、泥質(zhì)成分較高,成巖較差,軟硬互層,形成差異分化,遇水極易崩解剝落,且有膨脹性。個(gè)別區(qū)域地下水含量較高的特殊地質(zhì)條件下進(jìn)行邊坡開挖和防護(hù),成孔后,孔壁會呈現(xiàn)破壞現(xiàn)象,穿索比較難,有可能鉆孔損壞,無法下索。采用自鉆式中空預(yù)應(yīng)力錨桿技術(shù)即可很好解決該類地質(zhì)難題,自鉆式錨桿是一種新型材料,具有鉆注錨組合在一個(gè)工藝過程內(nèi)完成錨固的一套完整的錨固技術(shù)。
[Abstract]:In the relatively soft and soft Cretaceous siltstone and red sandstone with poor engineering geological conditions, there are sandiness, high muddy composition, poor diagenesis, soft and hard interbed, differential differentiation, easy disintegration and exfoliation when water is encountered, and it has expansibility. Slope excavation and protection are carried out under the special geological conditions with high groundwater content in some regions. After the hole is formed, the hole wall will present the phenomenon of destruction, it is difficult to penetrate the cable, and it may be damaged by borehole and can not be used for cable down. This kind of geological problem can be well solved by using self-drilling hollow prestressed anchor. Self-drilling anchor is a new type of material with a complete set of anchoring technology which can be combined with drilling and grouting anchor in one process.
【作者單位】： 云南云嶺高速公路集團(tuán)第十工程公司;
【分類號】：U416.14
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本文編號：2023665