CN204753558U - Foundation ditch horizontal displacement monitoring devices - Google Patents

Abstract

The utility model provides a foundation ditch horizontal displacement monitoring devices, includes the metab of cuboid shape, and the upper surface of metab is equipped with the scale along its length direction, and the scale is equipped with on the metab and follows the gliding slider of its length direction at zero graduation department and metab fixed connection, is equipped with the cross wire that is used for confirming the sight direction on the slider. The utility model discloses beneficial effect: the utility model overcomes tradition detection method inefficiency, need shortcoming such as interior work calculation, rational in infrastructure, work efficiency is high, uses safe and reliable, can carry out horizontal displacement's detection fast, and the commonality is strong, has reduced the measurement cost, has guaranteed construction safety to has accurate nature.

Description

A horizontal displacement monitoring device for a foundation pit

technical field

The utility model belongs to the civil construction industry, and relates to a horizontal deformation monitoring device of a civil engineering foundation pit, in particular to a horizontal displacement monitoring device of a foundation pit.

Background technique

The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. In order to ensure the safety during the foundation pit construction, the displacement monitoring of the foundation pit is required. The common method is the method of measuring small angles. The working base point A is selected at a certain distance from the monitoring area. The layout of the horizontal displacement monitoring points should be as close as possible to the working base point. Select a control point B at a certain distance (outside the scope of construction influence) as the zero direction. Place a target board at point B, observe the horizontal angle, measure the angle change value between the observation point and the reference point and the zero direction within a period of time, and calculate it by measuring the distance between each measuring point and the base point A and the included angle of the reference line The horizontal displacement of each point. The existing measurement method has complex procedures and low construction efficiency, which affects the quality of the project.

Utility model content

The technical problem to be solved by the utility model is to provide a foundation pit horizontal displacement monitoring device, which solves the existing problems in the foundation pit horizontal displacement detection in the civil engineering industry, reduces operating procedures, and improves construction efficiency and engineering quality.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a horizontal displacement monitoring device for a foundation pit, comprising a metal base in the shape of a cuboid, the upper surface of the metal base is provided with a scale along its length direction, and the scale is at zero scale The metal base is fixedly connected with the metal base, the metal base is provided with a slide block that can slide along its length direction, and the slide block is provided with a cross wire for determining the direction of sight.

The length of metal base described in the utility model is 15cm.

The scale ruler described in the utility model is an indium steel ruler.

The beneficial effects of the utility model are: the utility model places the horizontal displacement monitoring device of the foundation pit at the measuring point where the horizontal deformation needs to be measured, slides the slider to align the cross wire in the slider with the reference line provided by the total station, and reads The horizontal deformation reading on the steel ruler overcomes the shortcomings of traditional detection methods such as low efficiency and the need for in-house calculations. The structure is reasonable, the work efficiency is high, the use is safe and reliable, and the horizontal displacement can be detected quickly. The cost ensures the construction safety and accuracy.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Marks in the figure: 1. Metal base, 2. Scale, 3. Slider, 4. Cross hair, 5. Zero scale.

Detailed ways

As shown in Figure 1, a foundation pit horizontal displacement monitoring device comprises a metal base 1 in the shape of a cuboid. 1 is fixedly connected, the metal base 1 is provided with a slider 3 that can slide along its length direction, and the slider 3 is provided with a cross wire 4 for determining the direction of sight.

The length of metal base 1 is 15cm.

Scale 2 is an indium steel ruler.

When measuring the horizontal displacement of the foundation pit, use the line-of-sight method to measure, set a reference line through a total station or theodolite along the edge of the foundation pit to be measured, and set several monitoring points on the reference line along the edge of the foundation pit as needed.

Place the foundation pit horizontal displacement monitoring device at the monitoring point where the horizontal deformation needs to be measured, slide the slider 3 to align the crosshair 4 in the slider 3 with the reference line provided by the total station, and read the horizontal deformation reading on the scale 2, The difference from the initial reading is the horizontal deformation of the pit.

The horizontal displacement monitoring device of the foundation pit can not only be used for the horizontal displacement of the foundation pit of civil engineering, but also can monitor the horizontal deformation of the slope retaining wall of civil engineering, dam, etc., can quickly measure the horizontal deformation, the measurement cost is low, and no internal work is required Calculated, the promotion prospect is good.

Claims (3)

1. A horizontal displacement monitoring device for a foundation pit, characterized in that: it includes a metal base (1) in the shape of a cuboid, the upper surface of the metal base (1) is provided with a scale (2) along its length direction, and the scale (2) The zero scale (5) is fixedly connected with the metal base (1), the metal base (1) is provided with a slider (3) that can slide along its length, and the slider (3) is provided with a the reticle (4). 2. A monitoring device for foundation pit horizontal displacement according to claim 1, characterized in that: the length of the metal base (1) is 15cm. 3. The horizontal displacement monitoring device of a foundation pit according to claim (1), characterized in that: the scale (2) is an indium steel ruler.