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Method for measuring deep sedimentation deformation of foundation by using wireless conduction water pressure meter

A foundation settlement and conduction technology, which is applied in the field of foundation testing in civil engineering, can solve the problems of large impact of testing work, inability to carry out deep settlement, and inability to carry out measurement work, and achieve great application value, stable readings, and external environment. little interference effect

Inactive Publication Date: 2011-06-22
SOUTHEAST UNIV
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Problems solved by technology

[0006] 3) In traffic engineering, the measurement of deep settlement cannot be carried out during the later stage of road construction and after opening to traffic;
[0007] 4) The measurement work cannot be carried out under bad weather conditions, and the test work is greatly affected by the external environment

Method used

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  • Method for measuring deep sedimentation deformation of foundation by using wireless conduction water pressure meter
  • Method for measuring deep sedimentation deformation of foundation by using wireless conduction water pressure meter
  • Method for measuring deep sedimentation deformation of foundation by using wireless conduction water pressure meter

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Embodiment Construction

[0029] The wireless conductive water pressure instrument includes a first wireless signal transmitter 21, a second wireless signal transmitter 22, a first wireless signal receiver 31, a second wireless signal receiver 32, a pore water pressure sensor 4, and a data acquisition instrument 5 , data processor 6 and underground water level pipe 7. The first wireless signal transmitter 21 and the first wireless signal receiver 31 are connected to the pore water pressure sensor 4 .

[0030] When installing on site, first use a drilling rig to drill a hole to 0.5m above the subsidence position of the deep layer to be tested, and use the drill pipe of the drilling rig to press the pore water pressure sensor with the first wireless signal transmitter and the first wireless signal receiver into the deep layer to be tested at the sinking position. Backfill the borehole to the ground surface with bentonite. After the wireless conduction water pressure meter is installed in place, test th...

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Abstract

The invention relates to a method for measuring the sedimentation deformation of a foundation by using a wireless conduction water pressure meter based on a measuring system. The measuring system comprises a first wireless signal transmitter (21), a first wireless signal receiver (31) and a pore water pressure sensor (4) which are positioned in the foundation (1), and a second wireless signal transmitter (22) and a second wireless signal receiver (32) which are positioned outside the foundation (1), wherein the signal output end of the second wireless signal receiver (32) is connected with a data acquisition instrument (5); and the signal output end of the data acquisition instrument (5) is connected with a data processor (6). The meter is easy to install and operate and has high accuracy and stability, so that the deep deformation of the foundation can be deeply known and mastered, and the method can be more favorable for guiding the dynamic construction of civil engineering.

Description

technical field [0001] The invention relates to a method for testing foundation settlement, which belongs to the technical field of foundation testing in civil engineering. Background technique [0002] In civil engineering construction, foundation deformation under building load is a hot spot in the construction process, and it is also one of the key indicators of construction control. Especially in the construction process of highways, high-speed railways and other traffic projects on soft soil foundations, settlement problems Often directly control the construction progress of the project and the service level of the road during the operation period. Therefore, in order to control the settlement of the soft soil roadbed and guide the construction of buildings on the soft soil roadbed, it is necessary to implement dynamic monitoring of the foundation settlement during the building construction process to guide the construction process. [0003] At present, in the construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/00
Inventor 章定文刘松玉朱小丹
Owner SOUTHEAST UNIV
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