Soft foundation treatment construction method

A construction method and soft foundation treatment technology, which can be used in infrastructure engineering, soil protection, construction, etc., can solve the problems of gap between pile boots and cannula, easy extrusion of soil into cannula, etc., so as to shorten the consolidation time. , to ensure the effect of the quality of the plug board

Active Publication Date: 2020-04-17
CHENGTONG KAISHENG ECOLOGICAL CONSTR CO LTD
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Problems solved by technology

[0004] However, when the intubation tube sinks and encounters a relatively hard soil layer, it is affected by the up and down vibration force of the vibrating hammer, resulting in a local gap between the spud can and the i

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] refer to figure 1 , a construction method for soft foundation treatment:

[0040] S1. Clean up the working face: Use an excavator to remove surface attachments or excavate non-applicable materials before leveling, and build a certain cross slope to facilitate drainage;

[0041] Paving working cushion 1: Working cushion 1 is made of strongly weathered shale, the maximum particle size is not greater than 10cm, and the paving thickness is not greater than 1.0m. When paving the working cushion layer 1, excavators shall be used for excavation, and qualified soil materials shall be transported to the construction site by way of truck transportation, and shall be paved and leveled by earth pilers to form a transverse slope greater than 1% to facilitate drainage;

[0042] Lay gravel cushion 2: After the construction of working cushion 1, lay gravel cushion 2...

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Abstract

The invention discloses a soft foundation treatment construction method. The method comprises the steps that S1, a working surface is cleaned, a working cushion layer is laid, and then a gravel cushion layer is laid; S2, the pile position of a plastic drainage plate is measured, and a plate inserting machine enters the field; S3, the plastic drainage plate is installed; S4, the plastic drainage plate is inserted; S5, the plastic drainage plate is cut off, moved and then inserted; and S6, a roadbed is detected, and surface vertical and horizontal displacement is carried out. The method has thefollowing advantages and effects that a soft foundation can be cured through the arrangement of the plastic drainage plate, and meanwhile, the consolidation time of the soft foundation can be greatlyshortened; on the other hand, through the structural design of a prefabricated shoe head and the plastic drainage plate, the retreating distance of the plastic drainage plate can be reduced during plate insertion, sand therefore the quality of plate insertion is ensured.

Description

technical field [0001] The invention relates to the technical field of foundation construction methods, in particular to a construction method for soft foundation treatment. Background technique [0002] The definition of soft soil foundation in my country's road industry standards refers to weak soil layers with low strength and high compression, most of which contain certain organic substances. Due to the low strength and large amount of subsidence of soft soil, it is easy to bring great harm to road engineering. If it is not handled properly, it is easy to cause a great impact on the construction and use of roads. Therefore, it is usually necessary to strengthen the soft soil foundation before foundation construction. [0003] The vertical plastic drainage board is used to treat the soft foundation, which is to use the plastic drainage board to drain the water in the foundation, so as to increase the effective stress acting on the soil particles to accelerate the consoli...

Claims

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Application Information

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IPC IPC(8): E02D3/10
CPCE02D3/10E02D3/103
Inventor 李伟平王亮戎久杰孙鲁君
Owner CHENGTONG KAISHENG ECOLOGICAL CONSTR CO LTD
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