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Drilling and soil taking deviation correcting and treating method for house foundation

A technology of foundation soil and foundation, applied in the direction of foundation structure engineering, construction, etc., can solve the problems of building settlement, excessive back-tipping speed, economic loss, affecting construction period, etc.

Inactive Publication Date: 2015-04-08
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the amount of excavated soil is unreasonable, it is easy to cause problems such as excessive settlement of the building or excessive tilting speed or insignificant settlement that affects the construction period.
Sometimes improper design will lead to more corrections and deviations, which will cause huge economic losses and personal safety problems in serious cases.

Method used

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  • Drilling and soil taking deviation correcting and treating method for house foundation
  • Drilling and soil taking deviation correcting and treating method for house foundation
  • Drilling and soil taking deviation correcting and treating method for house foundation

Examples

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Embodiment Construction

[0063] In order to better illustrate a method for rectifying deviation of a house foundation by drilling and taking soil according to the present invention, a bank business building in Wuxi City is taken as an example to further describe in detail below. The bank business building has a rectangular building plan with a total building height of 18.60m and a foundation length of 16.0m. The foundation width is 14.64m. The building is a five-story frame structure, the foundation is a sheet raft foundation, the thickness of the raft slab is 0.4m, the foundation depth is 0.80m, and the external wall foundation is expanded by 2m. The building was built in 1994. During the decoration process in 2001, it was found that the building had uneven settlement, and the settlement had not yet stabilized. The house is generally inclined to the north, with a slope rate of 5.70‰, which needs to be reinforced and rectified.

[0064] The main parameters of the foundation design of each layer

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Abstract

The invention discloses a drilling and soil taking deviation correcting and treating method for a house foundation. The drilling and soil taking deviation correcting and treating method includes steps of 1, measuring and calculating settlement of a building to be corrected; 2, determining variation of soil hole ratio of the foundation according to the principle that the cross sectional area of lateral confinement soil sample before and after pressing; 3, filling all holes in the foundation after soil taking with gas, and determining soil taking amount according to the soil hole ratio; 4, determining soil taking parameters of foundation soil; 5, before correcting deviation of the building, arranging monitoring points, forming a data net by data monitored by the monitoring points, mutually linking the data and timely adjusting soil taking time according to the settlement observation results and real-time back pouring and crack propagation conditions of the observed building during soil taking; stopping soil taking when the deviation of the building is corrected, filling soil taken holes by medium-coarse sand and finishing deviation correcting.

Description

technical field [0001] The invention belongs to the technical field of uneven deformation and inclination correction of building foundations, and in particular relates to a reasonable and effective soil digging and correction control design method for buildings using anchor static pressure piles in the correction and reinforcement of building foundations. technical background [0002] With the rapid development of the national economy and the increase of infrastructure construction projects, various building forms continue to emerge, and the building scale is also increasing. Some buildings have to be located in poor geological conditions. The requirements for the design and construction of buildings are getting higher and higher. Due to the diversity of the superstructure and the uneven deformation of the foundation soil layer, etc., it often leads to uneven deformation and subsidence of the foundation of the building, resulting in damage to the stressed components of the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D35/00
CPCE02D35/00
Inventor 贺可强孙林娜潘信梅
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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