Soft soil layer drainage improvement construction method

A construction method and a technology for weak soil layers, applied in soil protection, infrastructure engineering, roads, etc., can solve the problems of drainage and improvement of weak soil layers of railway roadbeds that have not been studied, and achieve shortened construction period, accelerated construction speed, The effect of saving construction cost

Pending Publication Date: 2022-04-26
中铁五局集团第二工程有限责任公司
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Problems solved by technology

[0002] In the prior art, there are many studies on the stability of subgrades in seasonal water-soaked soft soil areas, and the construction technology of filling bangtang embankments. There is no research on the drainage and improvement of the weak soil layer of the railway embankment in low-lying and poorly drained wetlands.

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  • Soft soil layer drainage improvement construction method

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0026] The present invention will be further described by taking the Mo-Wan Railway Vientiane to Vientiane South locomotive turning section project as an example.

[0027] The Vientiane to Vientiane South locomotive turning section project of the Mowan Railway is located in Hasaifeng, Vientiane, the capital of the Lao People's Democratic Republic. The line length is 5km, and the earthwork is 2.33 million m 3 , accounting for 62.6% of the earthwork works in the bidding section. The project is located in a tropical monsoon climate. The whole year is clearly divided into two seasons: the rainy season from May to October, and the dry season from Nov...

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Abstract

The invention discloses a soft soil layer drainage improvement construction method which comprises the steps that S1, field measurement is conducted on site, rechecking is conducted on designed traverse points and benchmarks, pile points are marked, and side lines are determined; s2, an intercepting ditch is excavated, and a water retaining dam is built; s3, taking the intercepting ditch as a main water collection open channel, and excavating grid longitudinal and transverse line water collection open channels according to a set interval; s4, a centralized drainage point is excavated; s5, drainage is conducted on the centralized drainage point through a pollution discharge device; s6, the turf within the digging range is cleaned, and the surface layer of the ground is dug and aired; s7, the foundation soil is improved through lime treatment soil construction; s8, detecting the bearing capacity of the base; s9, the original ground foundation is rolled; and S10, the compaction quality is inspected according to the acceptance standard. According to the method, the construction speed can be fully increased, the draining effect of the foundation is rapidly achieved, the bearing capacity of the foundation meets the design requirement rapidly, the construction cost is greatly saved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of drainage construction, and more specifically relates to a construction method for improving drainage of weak soil layers. Background technique [0002] In the prior art, there are many studies on the stability of subgrades in seasonal water-soaked soft soil areas, and the construction technology of filling bangtang embankments. There is no research on the drainage and improvement of the weak soil layer of the railway embankment in low-lying wetlands with poor drainage. Contents of the invention [0003] The purpose of the present invention is to provide a construction method for improving the drainage of weak soil layers, so as to overcome the defects in the prior art. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is as follows: [0005] A construction method for improving drainage of weak soil layers, comprising the following steps: [0006] S1....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B2/00E02D3/10
CPCE01B2/00E02D3/10
Inventor 曹东宋作栋姜龙田太平伍志光谢毅冯群忠王勇刘银华
Owner 中铁五局集团第二工程有限责任公司
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