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Method, system and device for measuring horizontal displacement of foundation pit

A technology of horizontal displacement and measurement method, which is applied in the field of system, device, and horizontal displacement measurement method of foundation pit. It can solve the problems that the absoluteness of the reference point cannot be guaranteed and the measurement accuracy is affected, so as to ensure the real-time performance and accuracy of data and improve the measurement accuracy. Accuracy, effect of measurement process simplification

Pending Publication Date: 2021-10-19
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology

[0004] There is a common defect in the existing measurement methods, that is, the setting of the monitoring reference point is generally set on the ground. However, in the construction site, ground deformation often occurs, so as long as the reference point is set on the ground, it cannot be guaranteed. The absoluteness of the reference point, which affects the measurement accuracy

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  • Method, system and device for measuring horizontal displacement of foundation pit
  • Method, system and device for measuring horizontal displacement of foundation pit
  • Method, system and device for measuring horizontal displacement of foundation pit

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Embodiment Construction

[0033] The technical solution of the present invention will be further described in detail below in conjunction with specific examples, but the protection scope of the present invention is not limited to the following description.

[0034] A method for measuring the horizontal displacement of a foundation pit, the method comprising:

[0035] Step 1: Select multiple monitoring points around the foundation pit. The selection of monitoring points is set in layers with different depths, that is, multiple circles of monitoring points are set at different heights on the inner wall of the foundation pit. The serial number of the layer monitoring point; its distribution method can refer to figure 1 As shown, firstly select monitoring points around the foundation pit, after the selection is completed, take each monitoring point as the starting point and extend vertically downwards, and set monitoring points layer by layer on the extension line. figure 2 shown.

[0036] Step 2: Drill...

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Abstract

The invention relates to a method, a system and a device for measuring horizontal displacement of a foundation pit. Monitoring points are arranged on the inner wall of the foundation pit in a layered mode by using optical fibers, so that errors caused by reference points are eliminated, and the scheme omits a mode of using the monitoring reference points as reference points for measurement and calculation, so that the measurement process is more simplified, and meanwhile, errors caused by displacement changes of the monitoring reference points are eliminated, data conversion does not need to be conducted through the monitoring reference points, the calculation process is further saved, the inclination angles of the monitoring points are directly measured through the optical fibers, the real-time performance and accuracy of the data are guaranteed, and the measurement precision is improved.

Description

technical field [0001] The invention relates to the field of foundation pit monitoring, in particular to a method, system and device for measuring the horizontal displacement of a foundation pit. Background technique [0002] Foundation pit monitoring is an important link in the construction of foundation pit engineering. Observe and analyze the work, and feedback the monitoring results in time, predict the deformation and stable state development that will be caused by further construction, and judge the degree of impact of construction on the surrounding environment according to the prediction, to guide design and construction, and realize the so-called information construction. [0003] In foundation pit monitoring, the core is horizontal displacement monitoring, that is, monitoring whether there is subsidence in the foundation pit, so as to avoid collapse events. For now, when measuring the horizontal displacement in a specific direction, the collimation method, small a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00E02D17/02
CPCE02D33/00E02D17/02
Inventor 王作文杨昆孟晓平王梦迪罗瑾刘燕平岳磊骆阳游林李林传赵影胡飞龙吴宇航刘伯涛马洋王清
Owner SOUTHWEST PETROLEUM UNIV
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