A ground settlement measuring device

Abstract

The application discloses a ground subsidence measuring device, which comprises an observation tube pre-embedded in a solidified ground, the observation tube is in a tubular structure with an opening arranged on the upper top surface, a porous screen plate is arranged in the observation tube and is in a gap sliding fit with the observation tube, an observation stake is fixedly installed in the middle of the porous screen plate, a sand discharge cone tip is arranged at the bottom of the porous screen plate, and a plurality of connecting rods arranged in a conical shape are arranged between the bottom surface of the sand discharge cone tip and the porous screen plate. The application can effectively prevent the observation stake from being physically impacted, and the sand can protect the stake, so that the position accuracy of the observation stake can be ensured, and the application is convenient to popularize and use.

Description

Technical Field

[0001] This invention relates to the technical field of detection equipment, specifically to the technical field of settlement observation equipment, and more specifically to a ground-embedded settlement observation pile for settlement observation. Background Technology

[0002] Ground subsidence, also known as ground sinking or ground collapse, is a localized downward movement caused by the consolidation and compression of loose underground strata under the influence of human engineering and economic activities, resulting in a decrease in the elevation of the Earth's crust surface. Currently, the common method is to pre-bury a monitoring pile in the ground. However, exposed monitoring piles are easily damaged. For example, the subway elevated section pile foundation settlement monitoring device and monitoring method disclosed by the State Intellectual Property Office on October 8, 2019 (CN201910533903.9) also measures settlement changes by pre-burying monitoring piles, but its base and glass observation cover are still designed to be exposed, making them highly susceptible to damage from external forces.

[0003] To address this issue, the State Intellectual Property Office published CN201810480365.7, which describes a retractable measuring pile for monitoring building settlement. Although the pile is designed to be internal, its overall open design means it is still susceptible to damage from external forces. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a ground settlement measurement device that effectively solves the technical problem in the background art where existing observation piles are easily damaged due to exposure or communication with the outside.

[0005] To achieve the above objectives, the present invention provides the following technical solution, comprising an observation tube pre-embedded in the solidified ground. The observation tube is a tubular structure with an opening on its top surface. Inside the observation tube is a porous sieve plate that slides with the sieve plate. An observation stake is fixedly installed in the middle of the porous sieve plate. A sand-discharging cone tip is provided at the bottom of the porous sieve plate. Several conical connecting rods are arranged between the bottom surface of the sand-discharging cone tip and the porous sieve plate. A bearing seat assembly is installed on one side of the top surface of the porous sieve plate. A screw rod concentric with the bearing seat assembly is fixedly installed in the bearing hole of the bearing seat assembly. A screw seat is fixedly installed on one side of the edge of the observation tube opening. The screw seat is screwed with the screw rod. The top of the screw rod passes through an upper cover that rotates with it and is fixedly connected to an adjustment knob.

[0006] The observation tube is filled with sand to protect the observation stake.

[0007] The top of the observation pile is stamped to form a cross mark.

[0008] A pre-embedded hook is welded and fixed to the bottom surface of the observation tube.

[0009] The top cover can be completely attached to the top surface of the observation tube.

[0010] This invention provides a ground settlement measurement device, which has the following beneficial effects:

[0011] Due to the fully pre-embedded built-in design, the observation piles can be effectively protected from damage by physical impact in the radial direction.

[0012] The telescopic structure, which can be fully extended into the observation tube, greatly improves the overall practicality without affecting the original detection effect.

[0013] After shrinkage, the sand-supported piles combined with the protective cover effectively prevent the observation piles from being damaged by physical impacts in the axial direction. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1 As shown, this specific embodiment includes an observation tube 1 pre-embedded in the solidified ground. The observation tube 1 is a tubular structure with an opening on its top surface. Inside the observation tube 1, there is a porous sieve plate 2 that slides with the gap. An observation pile 3 is fixedly installed in the middle of the porous sieve plate 2. A sand discharge cone tip 4 is provided at the bottom of the porous sieve plate 2. Several conical connecting rods 5 are arranged between the cone bottom surface of the sand discharge cone tip 4 and the porous sieve plate 2. A bearing seat assembly 6 is installed on one side of the top surface of the porous sieve plate 2. A screw rod 7 concentric with the bearing is fixedly installed in the bearing hole of the bearing seat assembly 6. A screw seat 8 is fixedly installed on one side of the opening edge of the observation tube 1. The screw seat 8 is screwed with the screw rod 7. The top of the screw rod 7 passes through the upper cover 9 that rotates with it and is fixedly connected to the adjusting knob 10.

[0017] The observation tube 1 is filled with sand to protect the observation stake 3.

[0018] The top of the observation pile 3 is stamped to form a cross mark.

[0019] A pre-embedded hook 11 is welded and fixed to the bottom surface of the observation tube 1.

[0020] The top cover 9 can be completely covered and fastened to the top surface of the observation tube 1.

[0021] The following, in conjunction with the accompanying drawings, further elaborates on the usage method and principle of the technical solution in this specific embodiment:

[0022] First, rotate the adjustment knob 10 to drive the lead screw 7 to rotate. During the rotation, the lead screw 7 uses the screw seat 8 to drive the entire porous sieve plate 2 to rise axially inside the observation tube 1 until the top of the observation pile 3 is completely exposed on the surface of the sand and is flush with the top surface of the observation tube 1. Then, the total station or prism can be set up for measurement.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ground settlement measuring device, characterized in that... It includes an observation tube (1) pre-embedded in the solidified ground. The observation tube (1) is a tubular structure with an opening on the top surface. The observation tube (1) is equipped with a porous sieve plate (2) that slides with the gap inside it. An observation pile (3) is fixedly installed in the middle of the porous sieve plate (2). A sand discharge cone tip (4) is provided at the bottom of the porous sieve plate (2). Several connecting rods (5) arranged in a cone shape are provided between the cone bottom surface of the sand discharge cone tip (4) and the porous sieve plate (2). A bearing seat assembly (6) is installed on one side of the top surface of the porous sieve plate (2). A screw rod (7) concentric with the bearing is fixedly installed in the bearing hole of the bearing seat assembly (6). A screw seat (8) is fixedly installed on one side of the mouth edge of the observation tube (1). The screw seat (8) is screwed with the screw rod (7). The top of the screw rod (7) passes through the upper cover (9) that rotates with it and is fixedly connected to the adjusting knob (10). The observation tube (1) is filled with sand to protect the observation stake (3); The top of the observation pile (3) is stamped with a cross mark in one go; A pre-embedded hook (11) is welded and fixed to the bottom surface of the observation tube (1); The top cover (9) can be completely covered and fastened to the top surface of the observation tube (1).

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