CN220486562U

CN220486562U - Substrate resilience device and foundation pit identification system

Info

Publication number: CN220486562U
Application number: CN202321891058.0U
Authority: CN
Inventors: 陈春霞; 王亨林; 孙诚; 孙龙才; 陈海东; 胡宇; 彭文丹; 左磊; 杨江波; 吴云; 郑慧; 杨苗林
Original assignee: China Southwest Architectural Design and Research Institute Co Ltd
Current assignee: China Southwest Architectural Design and Research Institute Co Ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-02-13
Anticipated expiration: 2033-07-18

Abstract

The utility model relates to the field of substrate rebound equipment, in particular to a substrate rebound device and a foundation pit identification system, which comprises a connecting rod, wherein a plurality of adjacent connecting rods are connected end to form a drill rod, the bottom of the drill rod is abutted with a positioning ball, the outside of the drill rod is provided with an isolating layer, the positioning ball is made of iron, the accuracy of measured values is ensured by a mode of placing the positioning ball, the measured values and the actual elevation error are not large due to the fact that the shape of the positioning ball can be kept unchanged for a long time, the positioning ball is placed in a drill hole and then vertically placed in the drill rod, and in this step, in order to facilitate constructors to directly observe the elevation through the length of the drill rod buried in the drill hole, an isolating layer is sleeved outside the drill rod, and soil is prevented from being stuck by soil caused by the contact of soil and the drill rod, so that rebound data are affected.

Description

Substrate resilience device and foundation pit identification system

Technical Field

The utility model relates to the field of foundation pit rebound deformation measuring equipment, in particular to a substrate rebound device and a foundation pit identification system.

Background

In the deep foundation pit excavation process, the stress of surrounding soil is redistributed due to the fact that the dead weight of the soil is excavated and unloaded, and deformation can be generated inside the foundation pit. The deformation often causes the stress state of the soil body at the bottom of the foundation pit to change, thereby causing the foundation rebound phenomenon.

The foundation rebound refers to that in the construction process, the original foundation is subjected to the load actions in different directions and sizes, so that the foundation is deformed to a certain extent, and when the load disappears, the foundation is restored to the original shape, and the restored deformation is the foundation rebound.

Currently, in order to address the possible effects of foundation rebound on surrounding buildings and underground structures, it is necessary to measure and monitor them. However, the current detection means can only measure the foundation rebound quantity of the whole foundation pit bottom, and cannot effectively monitor the deformation condition of the soil body at the lower layer of the foundation pit bottom. In addition, the detection means is complex in operation, high in cost and easy to be influenced by a field complex construction environment, so that the practical application has certain limitation, and in addition, the conventional device for measuring the depth of the foundation pit through the drill rod can cause the change of rebound data if the drill rod is mixed with surrounding soil during measurement, so that the measurement is inaccurate.

Disclosure of Invention

The utility model aims at: aiming at the problem that in the prior art, if a drill rod is mixed with surrounding soil during measurement of the drill rod, rebound data can be changed, so that measurement is inaccurate, the foundation rebound device is provided, and a foundation pit identification system is also provided.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a basement resilient means, includes the connecting rod, a plurality of is adjacent the connecting rod end to end constitutes the drilling rod, drilling rod bottom butt has the locating ball, the drilling rod outside is equipped with the isolation layer, just the locating ball material is iron.

The utility model relates to a substrate rebound device, which is characterized in that a foundation pit elevation is measured on site usually, wherein a plurality of measuring tools and equipment are used, the measuring result of the foundation pit elevation directly influences the construction and the construction of the foundation pit, so that the foundation pit elevation is required to be cautiously and accurately measured, the positioning ball is made of iron, and can be kept undeformed for a long time, and is placed on the foundation pit elevation position, so that a measurer can be helped to accurately judge the position and the height of the foundation pit elevation, the accuracy and the reliability of the measuring result are improved, a drill rod is arranged at the upper end of the positioning ball, so that the constructor can intuitively see the height change of the drill rod, the elevation of the foundation pit is known, an isolating layer is arranged outside the drill rod, the drill rod is isolated from soil of the foundation pit through the isolating layer, the occurrence of adhesion between the soil and the drill rod is avoided, the condition that the measurement of the foundation pit elevation is influenced, the drill rod is formed by a plurality of connecting rods, and the stability and the safety of the structure of the drill rod can be improved.

As a preferable scheme of the utility model, each connecting rod is provided with a bolt part and a threaded connection part, and the bolt parts and the threaded connection parts are oppositely arranged and matched with each other, so that the connection between the drill rods is tighter and more stable.

As a preferable scheme of the utility model, the inner diameter of the isolation layer is the same as the outer diameter of the drill rod, and the inner diameter of the isolation layer is smaller than the diameter of the positioning ball, so that the isolation layer is connected with the drill rod.

As the preferable scheme of the utility model, the isolating layer body is a PVC sleeve, and the isolating layer is sleeved with the drill rod, so that the measuring precision is improved.

As the preferable scheme of the utility model, the bolt part is a trapezoid boss with a small upper part and a large lower part, and is provided with external threads, so that the strength and the reliability of connection are improved, and the safety and the stability of the structure are ensured.

As a preferable mode of the utility model, the threaded connection part is a groove structure provided with internal threads, and the threaded connection part is matched with the bolt part.

The foundation pit identification system comprises the substrate rebound device and further comprises a foundation pit for burying the elevation device.

As a preferable scheme of the utility model, a drilling hole is drilled on the foundation pit, and a positioning ball is arranged at the bottom of the foundation pit.

As the preferable scheme of the utility model, the warning box is arranged at the drill hole, and covers the drill hole, thereby improving the safety.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. the utility model relates to a foundation rebound device and a foundation pit identification system, wherein a drilling hole is formed in the end face of a foundation pit, a positioning ball is placed in the drilling hole, so that the measurement of the elevation of the foundation pit usually needs to be carried out on site, a plurality of measuring tools and devices are used, the measurement result of the elevation of the foundation pit directly influences the construction and the construction of the foundation pit, the foundation pit is required to be cautious and accurate when the measurement is carried out, the positioning ball can be kept undeformed for a long time, the positioning ball is placed at the elevation position of the foundation pit, the positioning ball can help a measurer to judge the position and the height of the elevation of the foundation pit more accurately, the accuracy and the reliability of the measurement result are improved, a drill rod is arranged at the upper end of the positioning ball, the positioning ball is arranged to facilitate the constructor to intuitively see the elevation change of the drill rod, so that the elevation of the foundation pit is known, and an isolating layer is arranged outside the drill rod to isolate the soil of the foundation pit, so that the soil is contacted with the drill rod through the isolating layer, and the soil of the foundation pit is prevented from being adhered, and the measurement of the elevation is influenced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the drill pipe structure of the present utility model;

FIG. 3 is a schematic illustration of a specific structure of the connection of the connecting rod and the positioning ball of FIG. 2A;

FIG. 4 is a schematic view of the connecting rod connection structure of the present utility model;

FIG. 5 is a schematic cross-sectional view of a connecting rod of the present utility model.

Icon: 1-a foundation pit; 2-isolating layer; 3-a drill rod; 4-a warning box; 5-positioning balls; 11-drilling; 31-connecting rods; 32-bolt part; 33-threaded connection.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

The substrate rebound device shown in fig. 1 and fig. 2 comprises a connecting rod 31, a plurality of adjacent connecting rods 31 are connected end to form a drill rod 3, one end of the drill rod 3 is abutted against a positioning ball 5, an isolating layer 2 is arranged outside the drill rod 3, the precision of measured values is ensured by a mode of placing the positioning ball 5, and the measured values and an actual elevation error are not large because the positioning ball 5 can keep a shape unchanged for a long time, the positioning ball 5 is abutted against the drill rod 3, the elevation can be directly observed by constructors through the length of the drill rod 3 buried in a foundation pit 11, and an isolating layer 2 is sleeved outside the drill rod 3 to prevent soil from being stuck on the drill rod 3 due to the fact that soil is contacted with the drill rod 3, so that rebound data are affected;

further, each of the connection rods 31 is of the same length so that it can be observed by counting the number of connection rods 31 buried in the borehole 11 when observing the length of the drill rod 3 buried in the borehole 11.

As described above, each connecting rod 31 is provided with a bolt portion 32 and a threaded connection portion 33, and the bolt portions 32 are disposed opposite to and cooperate with the threaded connection portions 33 so that disassembly is possible when such a long drill rod 3 is not required for measurement, as shown in fig. 3 to 5.

The inner diameter of the isolating layer 2 is the same as the outer diameter of the drill rod 3, the inner diameter of the isolating layer 2 is smaller than the diameter of the positioning ball 5, the inner diameter of the isolating layer 2 is the same as the outer diameter of the drill rod 3, thus ensuring that the drill rod can smoothly pass through the isolating layer 2, and the inner diameter of the isolating layer 2 is smaller than the diameter of the positioning ball 5, so that the positioning ball 5 can be more stably fixed at the lower end of the isolating layer 2 in the drilling process, and unnecessary displacement or falling off is avoided.

The isolation layer 2 body is a PVC sleeve, and the isolation layer 2 is sleeved with the drill rod 3, and the PVC sleeve has the properties of corrosion resistance, acid and alkali resistance and the like, so that soil or other substances in the foundation pit 1 can be effectively isolated, and the risk that the drill rod is stuck or corroded to lose efficacy in the measuring process is avoided.

As described above, the bolt portion 32 is a trapezoidal boss with a small upper part and a large lower part, and the bolt portion 32 is provided with external threads, as shown in fig. 5.

The threaded connection portion 33 has a groove structure with an internal thread, and the threaded connection portion 33 is matched with the bolt portion 32.

The utility model relates to a substrate rebound device, which is characterized in that a drilling hole 11 is formed in the end face of a foundation pit 1, a positioning ball 5 is placed in the drilling hole 11, so that the measurement of the elevation of the foundation pit 1 usually needs to be carried out on site, a plurality of measuring tools and devices are used, the measurement result of the elevation of the foundation pit 1 directly influences the construction and the construction of the foundation pit 1, the positioning ball 5 can be kept undeformed for a long time, the positioning ball 5 is placed at the elevation position of the foundation pit 1, the measuring staff can be helped to judge the position and the elevation of the foundation pit 1 more accurately, the accuracy and the reliability of the measurement result are improved, a drill rod 3 is arranged at the upper end of the positioning ball 5, the positioning ball is arranged to facilitate the constructor to intuitively see the change of the elevation of the drill rod 3, the elevation of the foundation pit 1 is known, an isolation layer 2 is further arranged outside the drill rod 3, the drill rod 3 is isolated from soil of the foundation pit 1 through the isolation layer 2, and the occurrence of adhesion between the soil and the drill rod 3 is avoided, and the elevation of the foundation pit 1 is influenced by the measurement.

Example 2

The foundation pit elevation system shown in fig. 1 comprises a substrate rebound device in embodiment 1, wherein the foundation pit 1 is embedded with an elevation device.

The end face of the foundation pit 1 is provided with a drilling hole 11, a positioning ball 5 is placed at the bottom of the drilling hole 11, the positioning ball 5 is required to be placed after the inside of the drilling hole 11 is cleaned, and the drill rod 3 is placed after the positioning ball 5 is placed.

The drill hole 11 is provided with a warning box 4, and the warning box 4 covers the drill hole 11;

furthermore, the warning box 4 is bright and eye-catching in color or shape, and can be provided with devices such as a flashing lamp, etc., because the warning box 4 is directly covered above the drill hole 11, the devices such as color, sign and flashing lamp can draw attention of constructors on the construction site, remind them that the area is at risk or special construction measures are needed, and because the warning box 4 covers the drill hole 11, sundries or garbage can be effectively prevented from falling into the drill hole 11, and the drill hole 11 is protected from being polluted or blocked, as shown in fig. 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a basement resilient means, includes connecting rod (31), its characterized in that, a plurality of is adjacent connecting rod (31) end to end constitutes drilling rod (3), drilling rod (3) bottom butt has locating ball (5), drilling rod (3) outside is equipped with isolation layer (2), just locating ball (5) material is iron.

2. A substrate rebound device as claimed in claim 1, wherein each of said connecting rods (31) is provided with a bolt portion (32) and a screw connection portion (33), and said bolt portion (32) is disposed opposite to and cooperates with said screw connection portion (33).

3. A substrate rebound device as claimed in claim 1, wherein the inner diameter of the isolation layer (2) is the same as the outer diameter of the drill rod (3), the inner diameter of the isolation layer (2) being smaller than the diameter of the positioning ball (5).

4. A substrate rebound device as claimed in claim 1, wherein the body of the isolation layer (2) is a PVC casing, and the isolation layer (2) is sleeved with the drill rod (3).

5. A substrate rebound device as claimed in claim 2, wherein the bolt portion (32) is a trapezoidal boss having a smaller upper part and a larger lower part, and the bolt portion (32) is provided with an external thread.

6. A substrate rebound device as claimed in claim 2, wherein the threaded connection (33) is a groove structure provided with an internal thread, and the threaded connection (33) is matched with the bolt portion (32).

7. A foundation pit identification system, characterized in that it comprises a foundation rebound device according to any one of claims 1-6, and further comprises a foundation pit (1) for burying elevation means.

8. The foundation pit identification system according to claim 7, wherein a drill hole (11) is drilled on the foundation pit (1), and a positioning ball (5) is arranged at the bottom of the foundation pit (1).

9. Foundation pit identification system according to claim 8, characterized in that the drill hole (11) is provided with a warning box (4), which warning box (4) covers the drill hole (11).