樹根樁設計施工要點.rar
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樹根樁設計施工要點
第一節(jié) 一般規(guī)定
1. 樹根樁可用作承受垂直荷載支承樁、側(cè)向支護樁、抗?jié)B堵漏墻和托換加固。
2. 樹根樁直徑在100~300mm范圍內(nèi),樁長不超過30米,布置形式有各種排列的直樁和網(wǎng)狀結(jié)構(gòu)的斜樁。
3. 樹根樁作為承重樁時,單樁容許承載力可采用下述方法確定:
一、單樁荷載試驗。
二、參考同類工程資料。
三、查閱上海市標準《地基基礎設計規(guī)范》DBJ-11-89,樁側(cè)摩阻力取規(guī)范大值。
4. 4.樹根樁 托換加固時
Root pile design and construction elements
Section I General Provisions
1. Root pile can be used to withstand vertical load bearing piles, pile lateral support, permeability plugging the wall and underpinning.
2. Root pile diameter of 100 ~ 300mm range, the pile length not exceeding 30 meters, a variety of layout and arrangement of vertical piles inclined pile network structure.
3. Root piles as load-bearing pile, the pile bearing capacity can be used to allow the following methods:
1, pile load test.
Second, information on similar projects for reference.
Third, access to the Shanghai standard "Foundation Design Code" DBJ-11-89, take the pile shaft resistance standard large value.
4.4. When Root Piles Underpinning
