Gravel bed foundation deep-cement-mixing pile impervious wall construction method

A technology of cement-soil mixing pile and construction method, which is applied in sheet pile wall, foundation structure engineering, soil protection and other directions, can solve the problem of difficult filling with cement slurry, affecting the quality of cement-soil mixing pile anti-seepage wall, difficult soil drilling In order to reduce the workload of subsequent drilling and grouting, ensure the compactness and integrity, and improve the quality

Inactive Publication Date: 2020-02-04
湖北盛达泰水利水电工程有限公司
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Problems solved by technology

[0003] Generally, the gravel layer is often located in the middle and lower part of the anti-seepage reinforcement stratum of the embankment, but compared with the soft soil layers such as plain fill, clayey soil, silt, sandy soil, etc., the gravel layer is squeezed by its adjacent soil layers under natural conditions. Compaction, during th

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  • Gravel bed foundation deep-cement-mixing pile impervious wall construction method
  • Gravel bed foundation deep-cement-mixing pile impervious wall construction method
  • Gravel bed foundation deep-cement-mixing pile impervious wall construction method

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[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] refer to figure 1 and figure 2 , is a method for constructing an anti-seepage wall of deep cement-soil mixing piles on a gravel layer foundation disclosed by the present invention, comprising the following steps: leveling the ground S1 → excavating guide grooves S2 → measuring and setting out lines S3 → leveling pile drivers in place S4 → drilling Advance preparation S5→drilling in soft soil layer S6→drilling in gravel layer S7→drilling through the gravel layer S8→lifting and mixing the sprayed grout until the piles are formed on the ground S9→leveling the position of the pile mover S10→multiple piles into the wall S11.

[0046] Site leveling S1: Clear the dregs on the foundation surface to ensure the levelness of the work site. Step S1 can ensure that there is no excessive garbage and sundries on the surface of the foundation, effectively ensuring ...

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Abstract

The invention relates to a gravel bed foundation deep-cement-mixing pile impervious wall construction method, and relates to the technical field of cement mixing pile impervious wall construction. Thegravel bed foundation deep-cement-mixing pile impervious wall construction method sequentially comprises the following steps of levelling a ground, excavating a guide slot, surveying and setting out,placing a pile machine in position and levelling, preparing for drilling, drilling a soft soil layer, drilling a gravel bed, drilling after penetrating through the gravel bed, and lifting, spouting and stirring until forming a pile on the ground. According to the gravel bed foundation deep-cement-mixing pile impervious wall construction method provided by the invention, aiming at a foundation with the gravel bed, a soil body can be smoothly drilled, cut and stirred, and a cement grout is quickly fully-filled in a clearance of the gravel bed, so that the quality of a finally formed cement mixing pile impervious wall is further improved.

Description

technical field [0001] The invention relates to the technical field of construction of an anti-seepage wall of cement-soil mixing piles, in particular to a construction method for an anti-seepage wall of cement-soil mixing piles deep in a gravel layer foundation. Background technique [0002] The deep mixing technology with cement slurry as the main curing agent has been widely used in the water conservancy industry for the anti-seepage reinforcement of dams and their foundations with plain fill, clay, silt, and sand as the main stratum, and for the silt soil Soil and silt are used as foundation reinforcement for small and medium-sized sluices and pumping stations in the main strata. However, since the construction sites of hydraulic structures such as dykes, dams, gates, and stations are located on river banks or riverbeds, in addition to the backfill soil of dykes and dams, the engineering geological conditions of the undisturbed foundations are affected by alluvial sedime...

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Application Information

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IPC IPC(8): E02D5/46E02D3/00
CPCE02D3/00E02D5/46
Inventor 黄泽均吴克辉晏海林刘礼喆杨梦琴
Owner 湖北盛达泰水利水电工程有限公司
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