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水泥土攪拌樁室內(nèi)配合比試驗研究

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摘  要:通過對室內(nèi)水泥土配合比試驗成果數(shù)據(jù)的分析發(fā)現(xiàn),隨著水泥摻入比的增大,水泥土強度先增大而后出現(xiàn)降低;隨著養(yǎng)護齡期的增長,水泥土強度增大,但不同水泥摻入比在同一養(yǎng)護齡期段強度增大速度不同。設計施工時可根據(jù)工程實際情況及工期要求參考室內(nèi)水泥土配合比試驗結論及規(guī)律選擇合適的水泥摻入比。

關鍵詞:水泥土強度;水泥配合比;養(yǎng)護齡期;軟土地基;水泥土攪拌樁

中圖分類號:TU473.1      文獻標志碼:A          文章編號:2095-2945(2023)15-0065-04

Abstract: Through the analysis of the data of indoor cement-soil mix ratio test, it is found that with the increase of cement mixing ratio, the cement-soil strength increases at first and then decreases. With the increase of curing age, the cement-soil strength increases, but the strength increases at different rates at the same curing age. During the design and construction, the appropriate cement mixing ratio can be selected according to the actual situation of the project and the requirements of the construction period, referring to the indoor cement-soil mix test conclusion and law.

Keywords: cement-soil strength; cement mix ratio; curing age; soft soil foundation; cement-soil mixing pile

處理加固軟土的方法中,水泥土攪拌法具有原位土利用率高,施工簡單、工期短、成本低,施工中無振動、無噪聲、無泥漿水污染和無土體隆起,對周圍原有建筑物及地下溝管影響很小,根據(jù)上部結構需要可靈活采用柱狀、壁狀、格柵狀或塊狀等加固形式[1]的獨特優(yōu)點,因此在工程界得到廣泛研究與應用[2-7]。(剩余4257字)

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