Pile foundation concrete hydration and frozen soil temperature change testing device
By introducing a stainless steel barrel, a polyurethane top cover, a heat-protecting sleeve, and a positioning component into the traditional testing apparatus, the problems of inaccurate sensor placement and deformation were solved, achieving accurate sensor positioning and improved measurement precision.
Patent Information
- Application Number
- CN202422755934.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-12
AI Technical Summary
In traditional testing setups, the temperature sensors are not precisely positioned and are prone to deformation when inserted into concrete, making it impossible to guarantee verticality and resulting in inaccurate measurement results.
A pile foundation concrete hydration and frozen soil temperature change testing device is adopted, including a stainless steel bucket, a polyurethane top cover and a protective sleeve, and is equipped with a positioning component and a plastic protective sleeve to ensure the accurate positioning and stability of the sensor.
This achieved accurate sensor positioning and position stabilization, improved measurement accuracy, and ensured the temperature stability of the test environment and the accuracy of the measurement results.
Smart Images
Figure CN223827599U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to frozen soil temperature test technical field especially relates to pile foundation concrete hydration and frozen soil temperature change testing arrangement. BACKGROUND
[0002] The engineering construction in permafrost zone will inevitably encounter the world problem of frozen soil, the state's investment in the engineering construction in permafrost zone is increasing, and the bridges, pile foundations, culverts and other projects in the permafrost zone of cold region are increasing. As the most widely used foundation form, the pile foundation has carried out a large number of indoor and field test research work at home and abroad. Among them, the research on the influence of concrete hydration heat on the frozen soil around the pile based on thermal balance is the most critical.
[0003] In the traditional test device, the arrangement of the temperature sensor has always been a challenge. In the past, the concrete was poured into a stainless steel barrel first, then the distance and insertion depth of the sensor from the barrel wall were measured, and then the sensor was vertically inserted by hand. Although this method is simple, the positioning is not accurate enough, and the main problem is that the sensor is easy to deform when inserted into the concrete, and the verticality cannot be guaranteed. In order to solve the above problems, the pile foundation concrete hydration and frozen soil temperature change testing device is needed to solve the above problems. UTILITY MODEL CONTENT
[0004] The utility model aims at: in order to solve the arrangement of the temperature sensor in the traditional test device has always been a challenge. In the past, the concrete was poured into a stainless steel barrel first, then the distance and insertion depth of the sensor from the barrel wall were measured, and then the sensor was vertically inserted by hand. Although this method is simple, the positioning is not accurate enough, and the main problem is that the sensor is easy to deform when inserted into the concrete, and the verticality cannot be guaranteed. In order to solve the above problems, the pile foundation concrete hydration and frozen soil temperature change testing device is needed to solve the above problems.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: the pile foundation concrete hydration and frozen soil temperature change testing device, including stainless steel barrel, the top of stainless steel barrel is provided with polyurethane top cover, the outside of stainless steel barrel is provided with polyurethane temperature protection sleeve, a plurality of hooks are fixedly installed on the inner wall of the bottom surface of stainless steel barrel, the upper surface of stainless steel barrel is provided with installation positioning assembly, the second temperature measuring assembly is arranged in the installation positioning assembly, the second temperature measuring assembly includes second thermometer and plastic protective sleeve, the outside of second thermometer is sleeved with plastic protective sleeve.
[0006] Further description of the above technical scheme:
[0007] The bottom of the second thermometer is fixedly installed with a connecting steel wire, and the bottom end of the connecting steel wire is tightly connected with the hook.
[0008] As a further description of the above technical solutions:
[0009] The installation positioning assembly comprises a horizontal positioning plate, which is fixedly installed on the top surface of the stainless steel barrel through positioning bolts.
[0010] As a further description of the above technical solutions:
[0011] The horizontal positioning plate is internally provided with a plurality of positioning holes, and the plastic protective sleeve is arranged inside the positioning holes.
[0012] As a further description of the above technical solutions:
[0013] The hot rod is tightly connected with the hook through the bottom hanging ring fixedly installed at the bottom of the hot rod.
[0014] As a further description of the above technical solutions:
[0015] The third thermometer is fixedly installed on one side of the outer wall of the hot rod, the first thermometer is fixedly installed on one side of the inner wall of the stainless steel barrel, and the top ends of the first thermometer, the second thermometer and the third thermometer are provided with data lines, and one end of the data line is connected with a data collector.
[0016] As described above, due to the adoption of the above technical solutions, the beneficial effects of the present application are:
[0017] 1、The device can be used for measuring the hydration of pile foundation concrete and the temperature change of frozen soil, and the installation positioning assembly is provided, which can effectively complete the positioning and installation of the thermometer, ensure the accurate position of each sensor, maintain the shape and position of the sensor during pouring, and improve the use effect of the overall device.
[0018] 2、The polyurethane top cover and the polyurethane temperature protection sleeve are provided, the polyurethane material can provide thermal insulation effect, ensure the stability of the test environment temperature, ensure the test accuracy of the equipment, and the plastic protective sleeve is arranged outside the second thermometer, which can prevent the temperature sensor from being deviated due to the lateral pressure of the freshly mixed concrete during the pouring of the concrete, and ensure the use effect of the overall device. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 The utility model provides a pile foundation concrete hydration and frozen soil temperature change test device's three-dimensional structure schematic diagram;
[0020] Figure 2 The utility model provides a pile foundation concrete hydration and frozen soil temperature change test device another angle's three-dimensional structure schematic diagram;
[0021] Figure 3 The explosion three-dimensional structure schematic view of the pile foundation concrete hydration and frozen soil temperature change testing device provided by the utility model;
[0022] Figure 4 The explosion three-dimensional structure schematic view of the installation positioning assembly and the thermal rod in the pile foundation concrete hydration and frozen soil temperature change testing device provided by the utility model;
[0023] Figure 5 The explosion three-dimensional structure schematic view of the second temperature measuring assembly in the pile foundation concrete hydration and frozen soil temperature change testing device provided by the utility model.
[0024] Legend:
[0025] 1, thermal rod; 2, polyurethane top cover; 3, polyurethane temperature protection sleeve; 4, first thermometer; 5, second temperature measuring assembly; 51, second thermometer; 52, connecting steel wire; 53, plastic protective sleeve; 6, installation positioning assembly; 61, horizontal positioning plate; 62, positioning hole; 63, positioning bolt; 7, third thermometer; 8, stainless steel barrel; 9, bottom hanging ring. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0027] Please refer to Figures 1-5 The utility model provides a technical scheme: pile foundation concrete hydration and frozen soil temperature change testing device, including stainless steel barrel 8, the top of stainless steel barrel 8 is provided with polyurethane top cover 2, the outside of stainless steel barrel 8 is provided with polyurethane temperature protection sleeve 3, a plurality of hooks are fixedly installed on the inner wall of the bottom surface of stainless steel barrel 8, the upper surface of stainless steel barrel 8 is provided with installation positioning assembly 6, second temperature measuring assembly 5 is arranged in installation positioning assembly 6, second temperature measuring assembly 5 includes second thermometer 51 and plastic protective sleeve 53, the outside of second thermometer 51 is sleeved with plastic protective sleeve 53, the bottom of second thermometer 51 is fixedly installed with connecting steel wire 52, the bottom end of connecting steel wire 52 is closely connected with the hook;
[0028] A third thermometer 7 is fixedly installed on one side of the outer wall of the heat rod 1, and a first thermometer 4 is fixedly installed on one side of the inner wall of the stainless steel barrel 8. Data cables are provided at the top of the first thermometer 4, the second thermometer 51 and the third thermometer 7, and one end of the data cable is connected to a data acquisition device.
[0029] The specific implementation method is as follows: the first thermometer 4 and the third thermometer 7 are installed in the designated position, the second thermometer 51 is passed through the plastic protective sleeve 53, and then the plastic protective sleeve 53 is passed through the positioning hole 62 of the horizontal positioning plate 61 until it reaches the hook at the bottom, so that the second thermometer 51 is tightly connected to the hook through the bottom end of the connecting wire 52.
[0030] The installation positioning component 6 includes a horizontal positioning plate 61, which is fixedly installed on the top surface of the stainless steel barrel 8 by positioning bolts 63. The horizontal positioning plate 61 has multiple positioning holes 62 inside, and the plastic protective sleeve 53 is set inside the positioning holes 62. A heat rod 1 is embedded in the positioning hole 62, and the heat rod 1 is tightly connected to the hook by a bottom hanging ring 9 fixedly installed at its bottom.
[0031] The specific implementation method is as follows: After installation, fresh concrete is poured. After pouring the fresh concrete, the plastic protective sleeve 53 is slowly pulled out. After pulling out the plastic protective sleeve 53, the upper part of the stainless steel bucket 8 is immediately covered with the polyurethane top cover 2 to ensure the insulation effect of the upper part. During the testing process, the data is transmitted to an external data acquisition instrument. The data acquisition instrument can be powered by a portable power supply, allowing it to operate normally outdoors. Data is collected continuously for two to three days, and then the acquisition instrument is connected to a computer for comprehensive data analysis.
[0032] Working principle: Install the first thermometer 4 and the third thermometer 7 in the designated positions. Then, pass the second thermometer 51 through the plastic protective sleeve 53, and then pass the plastic protective sleeve 53 through the positioning hole 62 of the horizontal positioning plate 61 until it reaches the hook at the bottom. Ensure that the second thermometer 51 is tightly connected to the hook via the bottom end of the connecting wire 52. After installation, pour fresh concrete. After pouring the concrete, slowly pull out the plastic protective sleeve 53. Immediately after pulling out the plastic protective sleeve 53, cover the upper part of the stainless steel bucket 8 with the polyurethane top cover 2 to ensure the insulation effect of the upper part. During the testing process, data is transmitted to an external data acquisition instrument. The data acquisition instrument can be powered by a portable power supply, allowing it to operate normally outdoors. Collect data continuously for two to three days, and then connect the acquisition instrument to a computer for comprehensive data analysis.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A testing device for hydration of pile foundation concrete and temperature change of frozen soil, comprising a stainless steel bucket (8), characterized in that: The stainless steel barrel (8) is provided with a polyurethane top cover (2) and a polyurethane heat-protecting sleeve (3) on the outside of the stainless steel barrel (8). Multiple hooks are fixedly installed on the inner wall of the bottom surface of the stainless steel barrel (8). An installation positioning component (6) is provided on the upper surface of the stainless steel barrel (8). A second temperature measuring component (5) is provided inside the installation positioning component (6). The second temperature measuring component (5) includes a second thermometer (51) and a plastic protective sleeve (53). The second thermometer (51) is fitted with a plastic protective sleeve (53).
2. The pile foundation concrete hydration and frozen soil temperature change testing device according to claim 1, characterized in that, A connecting wire (52) is fixedly installed at the bottom of the second thermometer (51), and the bottom end of the connecting wire (52) is tightly connected to the hook.
3. The pile foundation concrete hydration and frozen soil temperature change testing device according to claim 2, characterized in that, The installation positioning component (6) includes a horizontal positioning plate (61), which is fixedly installed on the top surface of the stainless steel barrel (8) by positioning bolts (63).
4. The pile foundation concrete hydration and frozen soil temperature change testing device according to claim 3, characterized in that, The horizontal positioning plate (61) has multiple positioning holes (62) inside, and the plastic protective sleeve (53) is set inside the positioning holes (62).
5. The pile foundation concrete hydration and frozen soil temperature change testing device according to claim 4, characterized in that, A heat rod (1) is fitted into the positioning hole (62), and the heat rod (1) is tightly connected to the hook through a bottom hanging ring (9) fixedly installed at its bottom.
6. The pile foundation concrete hydration and frozen soil temperature change testing device according to claim 5, characterized in that, A third thermometer (7) is fixedly installed on one side of the outer wall of the heat rod (1), and a first thermometer (4) is fixedly installed on one side of the inner wall of the stainless steel barrel (8). Data cables are provided at the top of the first thermometer (4), the second thermometer (51) and the third thermometer (7), and one end of the data cable is connected to a data acquisition device.