CN210395466U

CN210395466U - Foundation pit horizontal displacement alarm device

Info

Publication number: CN210395466U
Application number: CN201920561229.0U
Authority: CN
Inventors: 曹海莹; 杜量; 张书恒
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-04-24
Anticipated expiration: 2029-04-24

Abstract

Foundation ditch horizontal displacement alarm device, including A casing (1), hollow cylinder hole groove (2), A baffle (3), B baffle (4), spout (5), B casing (6), adjustable length's solid cylinder pole (7), quick lime (8), water (9), power (10), wire (11), thermistor (12), signal transmission device (13), signal receiver (14), solar cell panel (15), warning light (16) part, the utility model discloses whether the principle that has utilized mechanical energy to turn into heat energy detects foundation ditch horizontal displacement and has reached alert value to a simple and easy alarm device has been provided, the problem of can't directly perceivedly judge whether foundation ditch horizontal displacement reaches alert value in the engineering has been solved. The device has simple principle, easy operation and low requirement on operators.

Description

Foundation pit horizontal displacement alarm device

Technical Field

The utility model relates to a foundation ditch horizontal displacement alarm device is applicable to the geotechnical engineering field.

Background

In the excavation construction process of the foundation pit, the supporting structure can deform and move under the action of the horizontal pressure of the soil body, and a heavy person has the risk of collapsing. At present, a large foundation pit and a deep foundation pit are the mainstream of future development, and the traditional foundation pit horizontal displacement monitoring method comprises the following steps: the line-of-sight method, the small angle measuring method, the front intersection method and the like can reveal the deformation trend and the law only after data processing, and can not reflect and judge whether the displacement of the foundation pit reaches an alarm value in time. In order to avoid casualties and economic losses caused by collapse of a supporting structure under the action of horizontal pressure of a soil body, an efficient and visual alarm device is required to monitor the displacement of a foundation pit in real time, and early warning can be carried out under dangerous conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a use cost is low, easy operation, and easily observation result's foundation ditch horizontal displacement alarm device.

The utility model discloses a A casing (1), hollow cylinder hole groove (2), A baffle (3), B baffle (4), spout (5), B casing (6), solid cylinder pole (7) of adjustable length, quick lime (8), water (9), power (10), wire (11), thermistor (12), signal transmission device (13), signal receiver (14), solar cell panel (15), warning light (16) part, its characterized in that: the components (1) - (13) are buried at the lower part of the soil body. The hollow cylindrical hole groove (2) is welded on the right side face of the A shell (1), the solid cylindrical rod (7)) with adjustable length is welded on the right side face of the B shell (6), the A partition plate (3) is welded on the upper half portion of the A shell (1), the B partition plate (4) is welded on the lower surface of the A partition plate (3) and the upper surface below the A shell (1), quicklime (8) is placed at the left end portion of the hollow cylindrical hole groove (2), and water (9) is placed on the left side of the B partition plate (4). The sliding groove (5) is respectively welded on the lower surface of the A partition plate (3) and the upper surface of the lower surface of the A shell (1), and the conductor power supply (8), the thermosensitive element (9) and the signal transmitting device (10) are placed on the upper surface of the A partition plate (3). The components (14) - (16) are placed on the upper part of the earth mass. The signal receiving device (14), the solar cell panel (15) and the warning lamp (16) are connected together through a lead (11).

Compared with the prior art, the utility model have following advantage:

1. the material is easy to obtain and the manufacturing cost is low;

2. the principle is simple, the operation is easy, and the device can be used in a large range;

3. the device has light weight, small volume, convenience and practicability;

4. the measuring result is convenient to observe, and the alarm state of the foundation pit displacement can be fed back in time

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic view of a measuring device;

FIG. 4-schematic view of an alarm device;

Detailed Description

The utility model discloses divide into underground part device and aboveground part device. The underground part is provided with parts (1) - (13), and the above-ground part is provided with parts (14) - (16). The horizontal displacement of the foundation pit is related to the horizontal pressure of the soil body, so that the underground part device is buried at the soil body of the supporting structure which is subjected to the maximum horizontal pressure when in use. When the horizontal pressure of the soil body is increased, the soil body can extrude the shell B (6) under the action of the horizontal pressure so as to move to the shell A (1), and meanwhile, the solid cylindrical rod (7) which is welded on the shell B (6) and can adjust the length moves along the hollow cylindrical hole groove (2) welded on the shell A (1). When the soil pressure is about to reach the early warning value, the solid cylindrical rod (7) with adjustable length can bump the quick lime which is placed on one side of the hollow cylindrical hole groove (2) in advance into the water (9) which is placed in the A shell (1) in advance. The quicklime (8) and the water (9) react to release a large amount of heat, so that the heat is sensed by a heat-sensitive element (12) which is placed on the A partition plate (3) in advance. After sensing a large amount of heat, the thermosensitive element enables the connected signal emitter (13) to emit an early warning signal to the upper part of the soil body due to the change of the resistance. When the early warning signal is received by a signal receiver (14) which is placed on the upper part of the soil body in advance, the danger is early warned through a warning lamp (16). The solar panel is used as a power supply to provide long-term clean energy. In order to make this utility model can be better adapt to different soil bodies and operating mode condition, fix solid pole adoption of B casing (6) be adjustable length's solid cylinder pole (7), come to carry out the early warning to the foundation ditch horizontal displacement that causes when soil body horizontal pressure is too big through the length of adjusting solid pole.

Claims

1. Foundation ditch horizontal displacement alarm device, including A casing (1), hollow cylinder hole groove (2), A baffle (3), B baffle (4), spout (5), B casing (6), solid cylinder pole (7) of adjustable length, quick lime (8), water (9), power (10), wire (11), thermistor (12), signal emission device (13), signal receiver (14), solar cell panel (15), warning light (16) part, its characterized in that: the part A shell (1), the hollow cylindrical hole groove (2), the A partition plate (3), the B partition plate (4), the sliding groove (5), the B shell (6), the solid cylindrical rod (7) with adjustable length, quick lime (8), water (9), a power supply (10), a lead (11), a thermosensitive element (12) and a signal transmitting device (13) are buried in the lower part of a soil body; the device comprises a shell A, a shell B, a hollow cylindrical hole groove (2), a solid cylindrical rod (7) with adjustable length, a partition plate A (3), a partition plate B (4), lime (8) and water (9), wherein the hollow cylindrical hole groove (2) is welded on the right side face of the shell A (1), the solid cylindrical rod (7) with adjustable length is welded on the right side face of the shell B (6), the partition plate A (3) is welded on the upper half portion of the shell A (1), the partition plate B (4) is welded on the lower surface of the partition plate A (3) and the upper surface below the shell A (1), the lime (; the sliding chute (5) is respectively welded on the lower surface of the A clapboard (3) and the upper surface of the lower surface of the A shell (1), and the lead (11), the thermosensitive element (12) and the signal transmitting device (13) are placed on the upper surface of the A clapboard (3); the signal receiving device (14), the solar cell panel (15) and the warning lamp (16) are placed on the upper portion of the soil body; the signal receiving device (14), the solar cell panel (15) and the warning lamp (16) are connected together through a lead (11).