Soft soil deep foundation pit settlement monitoring equipment

Abstract

The utility model relates to the technical field of soft soil deep foundation pit settlement monitoring equipment, in particular to soft soil deep foundation pit settlement monitoring equipment which comprises a base, a contraction groove is formed in the bottom of the base, multiple sets of springs are arranged on the two sides of the contraction groove, and the bottoms of the springs are connected with telescopic plates. Rake nails are arranged on the outer side of the screw shaft, a connecting column is arranged on the inner side of the screw shaft, and the bottom of the connecting column is connected with a jacking block; the soft soil deep foundation pit settlement monitoring equipment has the beneficial effects that when the soft soil deep foundation pit settlement monitoring equipment is used for monitoring soft soil deep foundation pit settlement, the base is firstly pushed to a detection point through rollers at the bottom, then a knob is screwed, and the knob drives a screw shaft to rotate, so that a jacking block connected with a connecting column on the inner side of the screw shaft is separated from jacking of a telescopic plate, and the telescopic plate is pushed to the detection point; and the springs drive the telescopic plates at the bottoms and the rollers at the bottoms of the telescopic plates to contract into the contraction grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of settlement monitoring equipment for soft soil deep foundation pits, and particularly relates to a settlement monitoring equipment for soft soil deep foundation pits. Background Technique

[0002] A soft soil deep foundation pit refers to a foundation pit with a relatively large excavation depth in soft soil layers. A foundation pit is an earthen pit excavated at the design position of a foundation according to the base elevation and the foundation plane dimensions. Before construction, it is necessary to monitor the settlement amount of these foundation pits to determine whether the settlement amount of the foundation pits is within the specified range, so as to avoid foundation subsidence, collapse, etc. when constructing a building.

[0003] After retrieval, a Chinese patent document with the authorization announcement number of CN 220084002 U discloses a foundation pit settlement monitoring device, including a base, a vertical plate, a horizontal plate, and a settlement amount monitoring mechanism. The base is fixedly installed on the ground beside the foundation pit, the vertical plate is fixedly installed on the top of the base, the horizontal plate is fixedly installed on the left side wall of the vertical plate, and the settlement amount monitoring mechanism is arranged on the horizontal plate. The settlement amount monitoring mechanism is used to monitor and measure the settlement amount inside the foundation pit. The settlement amount monitoring mechanism includes a first fixed pulley, a second fixed pulley, a sliding seat, a winch, a first steel wire rope, a first gravity block, a second steel wire rope, a second gravity block, a fixing plate, and a vertical measuring rod.

[0004] Although the above-mentioned existing settlement monitoring equipment can meet the basic requirements of automatically winding and unwinding the steel wire rope, in actual operation, the span of the foundation pit is large, and the settlement monitoring equipment needs to be detected at different positions of the foundation pit respectively. However, the base of the foundation pit settlement monitoring equipment is fixed, and it is very inconvenient to move, seriously affecting the detection efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a settlement monitoring equipment for soft soil deep foundation pits to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a base, a contraction groove is opened at the bottom of the base, multiple groups of springs are arranged on both sides of the contraction groove, and the bottom of the springs is connected with a telescopic plate; and a screw shaft, a harrow nail is arranged on the outer side of the screw shaft, a connecting column is arranged on the inner side of the screw shaft, and the bottom of the connecting column is connected with a supporting block.

[0007] Preferably, a support column is arranged on the top of the base, a support plate is arranged at the front bottom of the top end of the support column, a motor is arranged on one side of the support plate, and a roller shaft is inserted at the bottom of the motor, and the motor can control the roller shaft to rotate.

[0008] Preferably, a steel tape rope is wound around the roller shaft, scale lines are provided on the steel tape rope, a gravity block is connected to the bottom end of the steel tape rope, and the motor can control the rotation of the roller shaft to unwind the steel tape rope so that the gravity block at the bottom end of the steel tape rope reaches the bottom surface of the foundation pit.

[0009] Preferably, rollers are provided around the bottom of the telescopic plate. The rollers can move the base, and the spring in the contraction groove can retract the telescopic plate and the rollers at the bottom of the telescopic plate into the contraction groove through the contraction force.

[0010] Preferably, two groups of knobs are provided on the side of the base. The bottom of the knob is connected to a screw shaft, and rakes are provided on the outside of the screw shaft. By screwing the knob, the screw shaft can drive the rakes to extend out of the protruding groove at the bottom of the telescopic plate and insert into the soil to fix the base.

[0011] Preferably, a connecting column is provided inside the screw shaft. The connecting columns inside the two screw shafts are arranged staggered. A supporting block is provided at the bottom of the connecting column. The supporting block can support and limit the telescopic plate to prevent the spring from retracting the telescopic plate and the rollers at the bottom of the telescopic plate into the contraction groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] For a soft soil deep foundation pit settlement monitoring device proposed by the present utility model, when monitoring the settlement of a soft soil deep foundation pit, first push the base to the detection point through the rollers at the bottom, and then by screwing the knob, the knob drives the screw shaft to rotate, so that the supporting block connected to the connecting column inside the screw shaft disengages from the support of the telescopic plate, and the spring drives the telescopic plate at the bottom and the rollers at the bottom of the telescopic plate to contract into the contraction groove. At the same time, by the rotation of the screw shaft, the rakes on the outside of the screw shaft extend out of the protruding groove and insert into the soil to fix the base to prevent the base from sliding during the monitoring. Then, the motor on the side of the bottom support plate at the front end of the support column starts to control the rotation of the roller shaft to unwind the steel tape rope wound around the roller shaft, place the gravity block at the bottom of the steel tape rope on the bottom surface of the foundation pit, and straighten the steel tape rope to monitor the settlement of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a top view structural schematic diagram of the base of the present utility model;

[0016] Figure 3 is a sectional view structural schematic diagram of the base of the present utility model.

[0017] In the figure: base 1, support column 2, support plate 3, motor 4, roller shaft 5, steel tape rope 6, gravity block 7, knob 8, screw shaft 9, contraction groove 10, spring 11, telescopic plate 12, roller 13, extension groove 14, harrow nail 15, connecting column 16, top holding block 17. Specific implementation manner

[0018] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0019] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a base 1, a contraction groove 10 is opened at the bottom of the base 1, multiple groups of springs 11 are arranged on both sides of the contraction groove 10, and the bottom of the spring 11 is connected to a telescopic plate 12; and a screw shaft 9, a harrow nail 15 is arranged on the outer side of the screw shaft 9, a connecting column 16 is arranged on the inner side of the screw shaft 9, and the bottom of the connecting column 16 is connected to a top holding block 17; a support column 2 is arranged on the top of the base 1, a support plate 3 is arranged at the bottom of the front end of the top of the support column 2, a motor 4 is arranged on one side of the support plate 3, a roller shaft 5 is inserted at the bottom of the motor 4, and the motor 4 can control the rotation of the roller shaft 5; a steel tape rope 6 is wound around the roller shaft 5, scale lines are arranged on the steel tape rope 6, the bottom end of the steel tape rope 6 is connected to a gravity block 7, and the motor 4 can control the rotation of the roller shaft 5 to unwind the steel tape rope 6 so that the gravity block 7 at the bottom end of the steel tape rope 6 reaches the bottom surface of the foundation pit; rollers 13 are arranged around the bottom of the telescopic plate 12, and the rollers 13 can move the base 1, and the springs 11 in the contraction groove 10 can retract the telescopic plate 12 and the rollers 13 at the bottom of the telescopic plate 12 into the contraction groove 10 through the contraction force; two groups of knobs 8 are arranged on the side of the base 1, the bottom of the knob 8 is connected to the screw shaft 9, a harrow nail 15 is arranged on the outer side of the screw shaft 9, and by screwing the knob 8, the screw shaft 9 can drive the harrow nail 15 to extend out from the extension groove 14 at the bottom of the telescopic plate 12 and be inserted into the soil to fix the base 1; a connecting column 16 is arranged on the inner side of the screw shaft 9, the connecting columns 16 on the inner sides of the two screw shafts 9 are arranged in a staggered manner, and a top holding block 17 is arranged at the bottom of the connecting column 16, and the top holding block 17 can hold and limit the telescopic plate 12 to prevent the spring 11 from retracting the telescopic plate 12 and the rollers 13 at the bottom of the telescopic plate 12 into the contraction groove 10.

[0020] When monitoring the settlement of a deep soft soil foundation pit, first push the base 1 to the detection point through the rollers 13 at the bottom. Then, by turning the knob 8, the knob 8 drives the screw shaft 9 to rotate, causing the holding block 17 connected to the connecting column 16 inside the screw shaft 9 to release the holding of the telescopic plate 12. The spring 11 drives the bottom telescopic plate 12 and the rollers 13 at the bottom of the telescopic plate 12 to contract into the contraction groove 10. At the same time, through the rotation of the screw shaft 9, the rake nails 15 on the outside of the screw shaft 9 extend from the extension groove 14 and are inserted into the soil to fix the base 1, preventing the base 1 from sliding during monitoring. Then, the motor 4 on the side of the bottom support plate 3 at the front end of the support column 2 starts to control the roller 5 to rotate, unwind the steel tape rope 6 wound on the roller 5, place the gravity block 7 at the bottom of the steel tape rope 6 on the surface of the bottom of the foundation pit, and straighten the steel tape rope 6 to monitor the settlement of the foundation pit. When the monitoring is completed, turn the knob 8 in the reverse direction, causing the knob 8 to drive the screw shaft 9 to reverse. The screw shaft 9 starts to drive the rake nails 15 on the outside of the screw shaft 9 to rotate, retracting the rake nails 15 into the contraction groove 10 to cancel the fixation of the base 1. At the same time, the holding block 17 connected to the connecting column 16 inside the screw shaft 9 slowly squeezes the telescopic plate 12 through rotation, causing the rollers 13 at the bottom of the telescopic plate 12 to extend from the contraction groove 10. Then, push the base 1 to move to the next monitoring point.

[0021] Although the above describes the illustrative specific embodiments of the present application for the convenience of those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all applications and creations using the concept of the present application are within the scope of protection.

Claims

1. A soft soil deep foundation pit settlement monitoring device, characterized by: Comprising: A base (1), a contraction groove (10) is formed at the bottom of the base (1), multiple groups of springs (11) are arranged on both sides of the contraction groove (10), and the bottom of the spring (11) is connected to a telescopic plate (12); and A screw shaft (9), raking nails (15) are arranged on the outer side of the screw shaft (9), a connecting column (16) is arranged on the inner side of the screw shaft (9), and the bottom of the connecting column (16) is connected to a top holding block (17).

2. The settlement monitoring device for deep soft soil foundation pit according to claim 1, wherein: A support column (2) is arranged on the top of the base (1), a support plate (3) is arranged at the bottom of the front end of the top of the support column (2), a motor (4) is arranged on one side of the support plate (3), a roller shaft (5) is inserted at the bottom of the motor (4), and the motor (4) can control the rotation of the roller shaft (5).

3. The soft soil deep foundation pit settlement monitoring device according to claim 2, characterized in that: A steel tape rope (6) is wound around the roller shaft (5), scale lines are arranged on the steel tape rope (6), the bottom end of the steel tape rope (6) is connected to a gravity block (7), and the motor (4) can control the rotation of the roller shaft (5) to unreel the steel tape rope (6) so that the gravity block (7) at the bottom end of the steel tape rope (6) reaches the bottom surface of the foundation pit.

4. A soft soil deep foundation pit settlement monitoring device according to claim 3, characterized in that: Rollers (13) are arranged around the bottom of the telescopic plate (12), the rollers (13) can move the base (1), and the springs (11) in the contraction groove (10) can retract the telescopic plate (12) and the rollers (13) at the bottom of the telescopic plate (12) into the contraction groove (10) through the contraction force.

5. A soft soil deep foundation pit settlement monitoring device according to claim 4, characterized in that: Two groups of knobs (8) are arranged on the side of the base (1), the bottom of the knob (8) is connected to the screw shaft (9), raking nails (15) are arranged on the outer side of the screw shaft (9), and by screwing the knob (8), the screw shaft (9) can drive the raking nails (15) to extend out from the extension groove (14) at the bottom of the telescopic plate (12) and be inserted into the soil to fix the base (1).

6. The settlement monitoring device for deep soft soil foundation pit according to claim 5, characterized in that: A connecting column (16) is arranged on the inner side of the screw shaft (9), the connecting columns (16) on the inner sides of the two screw shafts (9) are arranged staggeredly, a top holding block (17) is arranged at the bottom of the connecting column (16), and the top holding block (17) can hold and limit the telescopic plate (12) to prevent the spring (11) from retracting the telescopic plate (12) and the rollers (13) at the bottom of the telescopic plate (12) into the contraction groove (10).

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