Impermeable type lime-soil compaction pile composite manual foundation

Abstract

The invention discloses an impermeable type lime-soil compaction pile composite manual foundation. A lime-soil compaction pile impermeable layer (1) is arranged on the periphery of a collapsibility soil layer (3) which is in a construction foundation range, a lime-soil impermeable layer (2) is arranged on the upper side of the collapsibility soil layer (3) and at the top of the lime-soil compaction pile (1); wherein the lime-soil compaction pile impermeable layer (1) and the lime-soil impermeable layer (2) can form an impermeable outer shell and the impermeable outer shell is shaped like a reversed Chinese character 'ao'. The bottom of the lime-soil compaction pile impermeable layer (1) is a non-collapsibility soil layer. The impermeable layer is arranged at the top and on the periphery of the foundation in the construction foundation range and water can be prevented from entering into a collapsibility loess layer. Collapsibility can not be conducted to the foundation and the security of upper architectural structures can be guaranteed. The impermeable type lime-soil compaction pile composite manual foundation can relatively reduce the area and the depth of foundation treatment. Construction cost is low. Treatment expense is saved and construction period is shortened.

Description

technical field [0001] The invention relates to a composite artificial foundation of a water-repellent lime-soil compaction pile. Background technique [0002] In Shaanxi Province, Qinghai Province, Gansu Province and other provinces in Northwest China, there are a large number of collapsible loess areas. The characteristics of collapsible loess collapsing when it encounters water leads to the need to treat the foundation in these areas to change the Collapsible loess has the characteristics of collapsibility when it encounters water, which ensures the safety of the superstructure. For some important buildings, the foundation treatment is usually done by using lime-soil compaction piles as a whole, and the thickness of the treatment is the entire depth of the collapsible loess layer, which can change the soil structure of the collapsible loess layer and eliminate the collapsibility of the soil; but this This treatment method has large treatment area, deep depth, high cost a...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a water-proof lime-soil compaction pile composite artificial foundation to overcome the shortcomings of the prior art such as large treatment area, deep depth, high cost and long construction period.

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