Deep foundation pit excavation slope deformation monitoring device

Abstract

The utility model discloses a deep foundation pit excavation slope deformation monitoring device, and relates to the deep foundation pit monitoring technology field, the deep foundation pit excavation slope deformation monitoring device comprises a base plate, a support shell and a conductive positioning cone, the two sides of the base plate are symmetrically provided with horizontal rulers, the bottom end of the base plate is symmetrically provided with two groups of connecting sleeves, the inner parts of the connecting sleeves are movably provided with second guide rods in a penetrating manner, and the second guide rods are connected with the conductive positioning cone. Mounting frames are arranged at the two ends of the second guide rod, second threaded rods are arranged in the mounting frames in a threaded penetrating mode, and inserting rods are arranged at the bottom ends of the second threaded rods. Through the arrangement of parts such as the second threaded rods, the second threaded rods are in threaded penetrating connection with the mounting frame, the second threaded rods can be conveniently rotated to adjust the needed use length, the insertion rods can be inserted into the ground of the deep foundation pit, and therefore the deep foundation pit can be conveniently adjusted according to the condition of the ground in the deep foundation pit. The use length of the second threaded rod is flexibly adjusted, the installation and use stability of the bottom plate can be observed through a horizontal ruler, and use of the monitoring device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of deep foundation pit monitoring, in particular to a deep foundation pit excavation slope deformation monitoring device. Background Art

[0002] The foundation pit is a soil pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the situation of nearby buildings on site, and waterproofing and drainage work should be done well. If the excavation is not deep, the side slope can be used to stabilize the soil slope. The slope size is determined according to the relevant construction project regulations. For deeper excavations and nearby buildings, foundation pit wall support methods and shotcrete wall protection methods can be used. Large foundation pits can even use underground continuous walls and column-type bored pile interlocking methods to prevent the outer soil layer from collapsing. For those with no impact on nearby buildings, the well point method can be used to lower the groundwater level, and slope open excavation can be used. In cold areas, natural cold air freezing method can be used for excavation, etc. Deep foundation pit monitoring is an important link in foundation pit construction. It refers to various observations and monitoring of the rock and soil properties of deep foundation pits, the displacement of support structures and changes in surrounding environmental conditions during deep foundation pit excavation and underground engineering construction.

[0003] At present, when monitoring the deformation of deep foundation pits, the bottom support plate of the monitoring device is mostly flat. Due to the diversity of the deep foundation pit ground, the interior of the deep foundation pit is mostly uneven, which makes it difficult to install the monitoring device and inconvenient to adjust the stability of the monitoring device during installation. To this end, we provide a deep foundation pit excavation slope deformation monitoring device to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The utility model aims to make up for the deficiencies of the prior art and provides a deep foundation pit excavation slope deformation monitoring device.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep foundation pit excavation slope deformation monitoring device, comprising a base plate, a support shell and a conductive positioning cone, a level ruler is symmetrically arranged on both sides of the base plate, two groups of connecting sleeves are symmetrically arranged at the bottom end of the base plate, a No. 2 guide rod is movably penetrated inside the connecting sleeve, mounting frames are arranged at both ends of the No. 2 guide rod, a No. 2 threaded rod is penetrated through the internal thread of the mounting frame, and an insertion rod is arranged at the bottom end of the No. 2 threaded rod.

[0008] Furthermore, a detection seat is arranged at the top of the bottom plate, a mounting hole is opened inside the detection seat, and a conductive sleeve is arranged on the inner wall of the mounting hole.

[0009] Furthermore, a mounting groove is provided on the top of the detection seat, and the mounting groove is located in front of the mounting hole, a battery is arranged inside the mounting groove, and a protective plate is detachably arranged on the top of the mounting groove.

[0010] Furthermore, a support shell is arranged on the top of the bottom plate, and the support shell is located outside the detection seat, two groups of observation plates are symmetrically arranged on both sides of the support shell, and the observation plates are movably connected to the support shell at fixed points.

[0011] Furthermore, a conductive hanging rope is provided on the top inner wall of the supporting shell, a conductive positioning cone is provided on the bottom end of the conductive hanging rope, and the conductive positioning cone is located inside the conductive sleeve.

[0012] Furthermore, three groups of No. 1 guide rods are symmetrically arranged at the top of the support shell, a No. 1 threaded rod is movably arranged at a fixed point at the top of the support shell, and a rotating plate is arranged on the outer side of the No. 1 threaded rod.

[0013] Furthermore, the outer thread of the No. 1 threaded rod is movably connected to a support frame, and the support frame is movably connected to the No. 1 guide rod, a sound and light alarm is arranged on the top of the support frame, a damper is arranged on the top of the support shell, and the damper is located below the support frame.

[0014] 3) Beneficial effects:

[0015] Compared with the prior art, the deep foundation pit excavation slope deformation monitoring device has the following beneficial effects:

[0016] 1. The utility model is provided with components such as No. 2 threaded rods, and the No. 2 threaded rods are threadedly connected to the mounting frame, so that each No. 2 threaded rod can be rotated to adjust the required length of use, and the insertion rod can be inserted into the ground of the deep foundation pit, so that the use length of the No. 2 threaded rod can be flexibly adjusted according to the ground conditions inside the deep foundation pit. The stability of the installation and use of the base plate can be observed by using a level ruler to ensure the use of the monitoring device.

[0017] 2. The utility model is provided with a support frame and other components. When a rotational force is applied to a rotating plate arranged on the outer side of the No. 1 threaded rod, the No. 1 threaded rod can be rotated. The support frame is guided up and down by a No. 1 guide rod, and the use height of the support frame at the top of the support shell can be adjusted. The support frame drives the sound and light alarm to move up and down, which is convenient for adjusting the use height of the sound and light alarm to warn the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the support shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the detection seat of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of point A of the utility model.

[0022] In the figure: 1. Base plate; 2. Detection seat; 3. Mounting hole; 4. Conductive sleeve; 5. Mounting slot; 6. Battery; 7. Protection plate; 8. Support shell; 9. Observation plate; 10. Conductive hanging rope; 11. Conductive positioning cone; 12. No. 1 guide rod; 13. No. 1 threaded rod; 14. Support frame; 15. Sound and light alarm; 16. Rotating plate; 17. Damper; 18. Level ruler; 19. Connecting sleeve; 20. No. 2 guide rod; 21. Mounting frame; 22. No. 2 threaded rod; 23. Insert rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a deep foundation pit excavation slope deformation monitoring device;

[0025] It includes a base plate 1, a supporting shell 8 and a conductive positioning cone 11. Level rulers 18 are symmetrically arranged on both sides of the base plate 1. Two sets of connecting sleeves 19 are symmetrically arranged at the bottom end of the base plate 1. A No. 2 guide rod 20 is movably penetrated inside the connecting sleeve 19. Both ends of the No. 2 guide rod 20 are provided with mounting frames 21. A No. 2 threaded rod 22 is penetrated through the internal thread of the mounting frame 21. The bottom end of the No. 2 threaded rod 22 is provided with an insert rod 23.

[0026] The level ruler 18 is a measuring instrument that uses the principle of liquid level to directly display angular displacement with a level bubble to measure the deviation degree of the relative horizontal position, plumb position, and inclined position of the measured surface. The level ruler 18 is convenient for visually checking the horizontality of the base plate 1 when installing the base plate 1. The connecting sleeve 19 is installed at the bottom end of the base plate 1 through connection. The connecting sleeve 19 is movably connected with the No. 2 guide rod 20 through a through-hole, and the No. 2 guide rod 20 is provided with an installation support through the mounting frame 21. The No. 2 guide rod 20 can linearly guide the connecting sleeve 19, and is threadedly connected with the mounting frame 21 through the No. 2 threaded rod 22. According to the conditions inside the deep foundation pit, it is convenient to rotate and adjust each No. 2 threaded rod 22 to the required use length, and the insertion rod 23 can be inserted into the ground of the deep foundation pit, so as to facilitate the flexible adjustment of the use length of the No. 2 threaded rod 22 according to the ground conditions inside the deep foundation pit. The stability of the installation and use of the base plate 1 can be observed by using the level ruler 18 to ensure the use of the monitoring device.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides a technical solution: a deep foundation pit excavation slope deformation monitoring device;

[0028] A detection seat 2 is arranged at the top of the base plate 1, a mounting hole 3 is opened inside the detection seat 2, a conductive sleeve 4 is arranged on the inner wall of the mounting hole 3, a mounting groove 5 is opened on the top of the detection seat 2, and the mounting groove 5 is located in front of the mounting hole 3, a battery 6 is arranged inside the mounting groove 5, and a protective plate 7 is detachably arranged on the top of the mounting groove 5, a support shell 8 is arranged on the top of the base plate 1, and the support shell 8 is located outside the detection seat 2, two groups of observation plates 9 are symmetrically arranged on both sides of the support shell 8, and the observation plates 9 are movably connected to the support shell 8 at a fixed point, a conductive hanging rope 10 is arranged on the top inner wall of the support shell 8, a conductive positioning cone 11 is arranged at the bottom end of the conductive hanging rope 10, and the conductive positioning cone 11 is located inside the conductive sleeve 4.

[0029] The bottom plate 1 is the main bottom support component of the deep foundation pit excavation slope deformation monitoring device. The bottom plate 1 provides installation support for the top working component and is opened on the top of the detection seat 2 through the installation hole 3. The installation hole 3 provides installation space for the conductive sleeve 4. The top of the detection seat 2 is provided with a mounting groove 5. The battery 6 is installed inside the mounting groove 5. The battery 6 arranged inside the mounting groove 5 can be covered and protected by the protective plate 7 to ensure the stable operation of the battery 6. The bottom end of the conductive hanging rope 10 is connected to a conductive positioning cone 11. When the slope of the deep foundation pit is deformed, the support shell 8 connected to the deep foundation pit will change position with the slope. The conductive positioning cone 11 will shake and will come into contact with the conductive sleeve 4 arranged on the inner wall of the mounting hole 3. The circuit connection can make the sound and light alarm 15 continuously light up and make a sound, thereby reminding the staff that the slope here is deformed.

[0030] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a deep foundation pit excavation slope deformation monitoring device;

[0031] Three groups of No. 1 guide rods 12 are symmetrically arranged at the top of the support shell 8, a No. 1 threaded rod 13 is movably arranged at a fixed point at the top of the support shell 8, a rotating plate 16 is arranged on the outer side of the No. 1 threaded rod 13, a support frame 14 is movably connected through the outer thread of the No. 1 threaded rod 13, and the support frame 14 is movably connected with the No. 1 guide rod 12 through the thread, a sound and light alarm 15 is arranged on the top of the support frame 14, and a damper 17 is arranged on the top of the support shell 8, and the damper 17 is located below the support frame 14.

[0032] The three groups of No. 1 guide rods 12 symmetrically arranged at the top of the support shell 8 are movable through the interior of the support frame 14. The No. 1 guide rods 12 can guide the support frame 14 to move up and down, and then the No. 1 threaded rod 13 is threadedly connected to the support frame 14, and the bottom end of the No. 1 threaded rod 13 is movably connected to the top of the support shell 8. When a rotational force is applied to the rotating plate 16 arranged on the outside of the No. 1 threaded rod 13, the No. 1 threaded rod 13 can be rotated, and the use height of the support frame 14 at the top of the support shell 8 can be adjusted. The support frame 14 drives the sound and light alarm 15 to move up and down, which is convenient for adjusting the use height of the sound and light alarm 15 to warn the staff.

[0033] Working principle: Before use, the monitoring device is installed on the top surface of the slope of the deep foundation pit according to the conditions inside the deep foundation pit, and the No. 2 threaded rod 22 is threadedly connected to the mounting frame 21, so that each No. 2 threaded rod 22 can be rotated to adjust the required length of use, and the insertion rod 23 can be inserted into the ground of the deep foundation pit, so as to flexibly adjust the use length of the No. 2 threaded rod 22 according to the ground conditions inside the deep foundation pit. The level ruler 18 can be used to observe the stability of the installation and use of the base plate 1 to ensure the use of the monitoring device. When the slope of the deep foundation pit is deformed, the support shell 8 connected to the deep foundation pit will change position with the slope. When the conductive positioning cone 11 is shaken, it will come into contact with the conductive sleeve 4 arranged on the inner wall of the mounting hole 3. The circuit connection can make the sound and light alarm 15 light up continuously and make a sound, thereby reminding the staff that the slope here is deformed. When the rotating plate 16 arranged on the outer side of the No. 1 threaded rod 13 is applied with rotational force, the No. 1 threaded rod 13 can be rotated, and the No. 1 guide rod 12 is used to guide the support frame 14 up and down, and the use height of the support frame 14 at the top of the support shell 8 can be adjusted. The support frame 14 drives the sound and light alarm 15 to move up and down, which is convenient for adjusting the use height of the sound and light alarm 15 to warn the staff.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deep foundation pit excavation slope deformation monitoring device, comprising a base plate (1), a support shell (8) and a conductive positioning cone (11), characterized in that: Level rulers (18) are symmetrically arranged on both sides of the base plate (1), two groups of connecting sleeves (19) are symmetrically arranged at the bottom end of the base plate (1), a second guide rod (20) is movably penetrated inside the connecting sleeve (19), mounting frames (21) are arranged at both ends of the second guide rod (20), a second threaded rod (22) is penetrated through the internal thread of the mounting frame (21), and an insertion rod (23) is arranged at the bottom end of the second threaded rod (22).

2. A deep foundation pit excavation slope deformation monitoring device according to claim 1, characterized in that: A detection seat (2) is arranged at the top end of the bottom plate (1), a mounting hole (3) is provided inside the detection seat (2), and a conductive sleeve (4) is arranged on the inner wall of the mounting hole (3).

3. A deep foundation pit excavation slope deformation monitoring device according to claim 2, characterized in that: The top of the detection seat (2) is provided with a mounting groove (5), and the mounting groove (5) is located in front of the mounting hole (3). A storage battery (6) is arranged inside the mounting groove (5), and a protective plate (7) is detachably arranged at the top of the mounting groove (5).

4. The deep foundation pit excavation slope deformation monitoring device according to claim 1, characterized in that: A support shell (8) is arranged on the top of the base plate (1), and the support shell (8) is located outside the detection seat (2). Two groups of observation plates (9) are symmetrically arranged on both sides of the support shell (8), and the observation plates (9) are movably connected to the support shell (8) at a fixed point.

5. The deep foundation pit excavation slope deformation monitoring device according to claim 2, characterized in that: A conductive hanging rope (10) is provided on the top inner wall of the support shell (8), a conductive positioning cone (11) is provided at the bottom end of the conductive hanging rope (10), and the conductive positioning cone (11) is located inside the conductive sleeve (4).

6. The deep foundation pit excavation slope deformation monitoring device according to claim 1, characterized in that: The top of the support shell (8) is symmetrically provided with three groups of No. 1 guide rods (12), the top of the support shell (8) is movably provided with a No. 1 threaded rod (13) at a fixed point, and a rotating plate (16) is provided on the outer side of the No. 1 threaded rod (13).

7. The deep foundation pit excavation slope deformation monitoring device according to claim 6, characterized in that: The outer thread of the No. 1 threaded rod (13) penetrates and is movably connected to a support frame (14), and the support frame (14) and the No. 1 guide rod (12) penetrate and are movably connected, the top of the support frame (14) is provided with an audible and visual alarm (15), and the top of the support shell (8) is provided with a damper (17), and the damper (17) is located below the support frame (14).

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