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Rapid solidification construction method for sea mud on large-area coastal beach

A rapid solidification and construction method technology, applied in infrastructure engineering, soil protection, construction, etc., can solve the problems of complex vacuum preloading process, large resource investment, and difficulty in implementation, so as to improve the pore structure of sea mud and construction The effect of high quality and fast construction progress

Active Publication Date: 2018-08-31
GEZHOUBA ZHONGGU TECH CO LTD
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AI Technical Summary

Problems solved by technology

The replacement and filling method is mainly suitable for projects with small treatment area and small engineering volume, and the original soil is easy to excavate, load and transport, and the backfill source is close; dynamic compaction treatment is mainly suitable for foundation reinforcement projects such as port reclamation, and low saturation It is difficult to implement foundations such as silt and clay, collapsible loess, plain fill and miscellaneous fill for dredging tidal flats with high saturation and low bearing capacity; the vacuum preloading method is complicated in process, large in resource investment, and slow in effect

Method used

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Embodiment Construction

[0027] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0028] A construction method for rapid solidification of sea mud on large-area coastal beaches, specifically comprising the following steps:

[0029] S100. Construction zoning: In order to meet the needs of construction machinery and equipment and materials entering the site, arrange construction roads in the site, and combine construction work surface layout, division of acceptance units, and reasonable utilization of equipment, use construction roads to make grid units for large-area sites The plane size of the acceptance unit is 160m×160m. Considering that the effective working radius of the backhoe of the construction equipment is 5.0m, after the test, two backhoes are arranged to relay excavation and backfilling on a single working face, and the constructio...

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Abstract

The invention relates to a rapid solidification construction method for sea mud on a large-area coastal beach. The rapid solidification construction method specifically comprises the following steps of performing construction partition, performing mud excavation, mud piling and draining, spreading an HAS sea mud curing agent, stirring the HAS sea mud curing agent and the sea mud uniformly, performing enclosing material solidification on the mixed soil to obtain a sea mud consolidated body and performing layered and blocked / segmented backfilling and compaction on the sea mud consolidated body.The method has the beneficial effects that the foundation bearing capacity, compaction degree, deflection value and the like after the sea mud is cured by the HAS sea mud curing agent in situ can meetcorresponding standards, uneven settlement can be reduced after layered backfilling, the foundation bearing capacity can reach more than 110 kPa, and common foundation requirements such as field-leveling foundation, building foundation and road subgrade can be met.

Description

technical field [0001] The invention relates to the technical field of soft foundation treatment, in particular to a construction method for rapid solidification of large-area beach mud. Background technique [0002] The coastal flats are generally weak bases with a lot of sea mud, and the construction has the characteristics of low bearing capacity, high water content, difficult mechanical construction, and large later settlement. [0003] Common methods for sea mud treatment on coastal beaches are replacement, dynamic compaction or vacuum preloading. The replacement and filling method is mainly suitable for projects with small treatment area and small engineering volume, and the original soil is easy to excavate, load and transport, and the backfill source is close; dynamic compaction treatment is mainly suitable for foundation reinforcement projects such as port reclamation, and low saturation It is difficult to implement foundations such as silt and clay, collapsible lo...

Claims

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Application Information

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IPC IPC(8): E02D3/12E02D3/10
CPCE02D3/10E02D3/12
Inventor 匡丕桩肖林洪军汪洋秦琪皓
Owner GEZHOUBA ZHONGGU TECH CO LTD
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