Reinforcing and treating method for water burst of soft-flow muddy stratum of foundation pit

A soft flow plastic and stratum technology, applied in the direction of infrastructure engineering, construction, etc., to achieve good reinforcement effect, wide application range, and save construction costs

Inactive Publication Date: 2015-12-16
SHANDONG UNIV
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Problems solved by technology

[0015] Aiming at the problems of empirical blindness, poor effect of the prior art and long construction period in the treatment method of water gushing in soft flow plastic strata of foundation pits in underground engineering, the present invention provides a reinforcement treatment method for water gushing in soft flow plastic strata of foundation pits. The method provided by the invention can truly solve the problem of water gushing plugging and reinforcement in soft fluid plastic formations

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  • Reinforcing and treating method for water burst of soft-flow muddy stratum of foundation pit
  • Reinforcing and treating method for water burst of soft-flow muddy stratum of foundation pit

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Embodiment Construction

[0053] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0054] A method for strengthening and treating water gushing in soft fluid plastic strata of urban underground engineering foundation pits, comprising the following steps:

[0055] (1) Comprehensive geophysical joint exploration and analysis of broken soft fluid plastic strata and water-rich areas

[0056] 1. Combining the geological survey data and excavation information of the foundation pit in the early stage of the subway project, based on the geological structure, stratum characteristics and hydrogeological data, carry out the analysis of the spatial development characteristics of the soft fluid plastic stratum containing water-conducting structures, and obtain the information of the soft fluid plastic stratum and the foundation pit The gushing water contains information on the development of water-conducting structures.

[0057] 2. Using the inte...

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Abstract

The invention discloses a reinforcing and treating method for a water burst of a soft-flow muddy stratum of a foundation pit. The method includes the following steps that firstly, the hydrogeological condition of a region is detected and a grouting treatment region is divided according to engineering requirements; secondly, when the soft-flow muddy stratum is excavated, mold bag grouting pipes are installed in the grouting treatment region at set intervals in a set arrangement mode, paste is injected in filter cloth bags in the mold bag grouting pipes, the filter cloth bags expand due to the injected paste, a surrounding soft soil stratum is then compacted, and after the paste in the filter cloth bags is hardened, a grouting stop layer is formed by the hardened paste and surrounding compacted soil jointly; and thirdly, soft soil strata located below the grouting stop layer are grouted and reinforced through grouting screen pipes of the mold bag grouting pipes.

Description

technical field [0001] The invention relates to a treatment method for water gushing in a broken zone of a soft fluid plastic stratum, belonging to the field of urban rail transit engineering. Background technique [0002] With the rapid development of my country's economy, the level of urbanization continues to increase, and many problems have gradually become prominent, mainly reflected in urban population saturation, crowded building space, overloaded living infrastructure, and traffic congestion. Among them, traffic congestion has become a common problem in most cities in my country. question. Urban rail transit projects have become an effective method to solve urban traffic congestion due to their large capacity, fast speed, safety, punctuality, environmental protection, energy saving and land use, and have been actively applied and promoted. With the improvement of the urban rail transit network, various adverse geological problems encountered in the construction of ur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/16
Inventor 李术才孙子正刘人太张庆松张乐文林春金杨为民张霄
Owner SHANDONG UNIV
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