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Collapsible loess foundation treatment method

A technology for collapsible loess and foundation treatment, applied in excavation, infrastructure engineering, and on-site preparation of building components, etc., can solve problems such as poor bonding effect, and achieve the effect of improving stability

Active Publication Date: 2021-12-07
LANHAI CONSTR GRP CO LTD
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Problems solved by technology

[0004] In view of the related technologies mentioned above, for the construction of the filling-excavation junction, usually the soil steps are excavated at the filling-excavation junction first, then the filling is layered and rolled, and a geogrid is laid on the filling-excavation junction for reinforcement. , but the combination between cut and fill is poor

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  • Collapsible loess foundation treatment method
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  • Collapsible loess foundation treatment method

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Embodiment Construction

[0038] The following is attached Figure 1-4 The application is described in further detail.

[0039] The embodiment of the application discloses a collapsible loess foundation treatment method. refer to figure 1 , the collapsible loess foundation treatment method includes the following construction steps:

[0040] S1. The operator first leveled the construction site, fixed points and lines, and determined the construction location according to the drawings;

[0041] S2. The operator uses the excavator to excavate the earthwork at the construction site to form a foundation pit, and slopes around the foundation pit;

[0042] S3. Step excavation is carried out on the slope of the excavated foundation pit to form multiple steps 1, and the operator manually or uses construction machinery to level the steps 1 to ensure that the treads and kick surfaces of the steps 1 are smooth and tidy;

[0043] S4, install connecting mechanism 2 on step 1;

[0044] S5. Select an appropriate ...

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Abstract

The invention relates to a collapsible loess foundation treatment method, which belongs to the technical field of foundation treatment. The method comprises the following steps: S1, leveling a construction site, carrying out fixed point marking and determining a construction position; S2, carrying out earth excavation to form a foundation pit, and carrying out sloping treatment; S3, carrying out step excavation on the slope to form steps; S4, installing a connecting mechanism on the step, wherein the connecting mechanism comprises a base arranged on the step, a waterproof plate arranged on the base and a driving assembly arranged in the base, an inserting pipe is installed on the waterproof plate, a positioning pipe is arranged in the inserting pipe, one end of the positioning pipe penetrates through the inserting pipe, and the other end of the positioning pipe penetrates through the waterproof plate and extends into the backfill earthwork; S5, treating the inner bottom face of the foundation pit; and S6, backfilling the earthwork in a layered mode, and carrying out tamping treatment through a tamping machine, wherein the height of each layer of backfilled earthwork is consistent with the height of the kicking face of the step on the same layer. The method has the effect of improving the combination effect between the unexcavated area and the fill.

Description

technical field [0001] The present application relates to the technical field of foundation treatment, in particular to a method for treating collapsible loess foundation. Background technique [0002] Collapsible loess refers to the soil that undergoes significant additional deformation due to the structural damage of the soil after soaking under the action of the self-weight stress of the overlying soil layer or the joint action of the self-weight stress and additional stress. It is widely distributed in the northeast, northwest, and Parts of Central China and East China. [0003] Construction personnel construct buildings in areas where collapsible loess is widely distributed. Construction personnel need to treat the foundation in advance so that the bearing capacity of the foundation can meet the design requirements. The foundation treatment methods commonly used in engineering circles include cushion method, dynamic compaction method, compaction method, pile foundation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02E02D17/04E02D31/02E02D19/16E02D5/74E04G27/00
CPCE02D17/02E02D17/04E02D31/025E02D19/16E02D5/74E04G27/00E02D2600/30
Inventor 刘雷雷刘慧娟袁志立
Owner LANHAI CONSTR GRP CO LTD
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