A deep foundation pit horizontal displacement monitoring alarm device and its operating method
A technology for monitoring and alarming devices and horizontal displacement, which is applied in the direction of measuring devices, mechanical measuring devices, and mechanical devices, etc., which can solve the problems of heavy workload of measuring personnel and achieve the effect of saving labor and increasing safety
Active Publication Date: 2020-08-21
CHINA MCC17 GRP
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Doing so makes the workload of the surveyors relatively large
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] see Figure 1-3 , a deep foundation pit horizontal displacement monitoring alarm device, including a display device and an alarm device, the display device includes a PVC pipe 3, a PVC pipe holder 4 and a level 5, the PVC pipe 3 is inserted on the PVC pipe holder 4, and the PVC pipe holder 4 is One end is open and the other end is closed. The end face of the PVC pipe 3 is connected to the closed end. The PVC pipe support 4 is used to support the PVC pip...
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The invention discloses a monitoring and alarming device for horizontal displacement of a deep foundation pit and an operation method thereof. The monitoring and alarming device comprises a display device and an alarming device. The display device includes a PVC pipe, a PVC pipe holder and a spirit level. The PVC pipe is inserted into the PVC pipe holder, and the spirit level is installed in clamping grooves symmetrically formed in two sides of the PVC pipe. The alarming device includes an alarm, power supply, a steel bar and a steel ball. The steel bar is pre-embedded in a support and a crownbeam, one end of the steel bar extends into the spirit level, the steel ball is placed in a small hole formed in the spirit level, the steel ball is connected with the power supply used for providingelectricity to the alarm through an electric wire penetrating though one end of the spirit level, the power supply is connected with the alarm through an electric wire, and the alarm is connected with the steel bar through another electric wire. The distance between the steel ball and the steel bar is equal to the alarm value of 30mm, when the displacement of the support and the crown beam reaches 30mm, the steel ball rolls 30mm to be in contact with the steel bar, circuits of the alarm are connected, and the current is generated, the alarm sends alarm sound to remind construction workers, labor can be saved, and the safety of the foundation pit is increased.
Description
technical field [0001] The invention relates to a building foundation pit alarm system, in particular to a deep foundation pit horizontal displacement monitoring alarm device and an operating method thereof. Background technique [0002] When measuring the horizontal displacement in a specific direction, the collimation method, small angle method, and point projection method can be used; when measuring the horizontal displacement of the monitoring point in any direction, the distribution of the monitoring points can be seen, and the forward intersection method and the free station method can be used. , polar coordinate method, etc.; when the reference point is far away from the foundation pit, GPS measurement method or a comprehensive measurement method combining triangulation, trilateral, corner measurement and baseline method can be used. When the monitoring accuracy is relatively high, the micro-deformation measurement radar can be used for automatic all-weather real-time...
Claims
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IPC IPC(8): G01B5/04
CPCG01B5/043
Inventor 张所杰顾奎刘生强
Owner CHINA MCC17 GRP