Heat preservation greenhouse device for carrying out in-situ water immersion test

Abstract

The utility model belongs to the technical field of water immersion tests, and provides a heat preservation greenhouse device for carrying out an in-situ water immersion test, which comprises a steel frame arranged on an on-site test pit, a plurality of support columns arranged on the steel frame and a framework arranged on the plurality of support columns, a heat preservation layer is arranged on the framework, and a greenhouse film is arranged on the heat preservation layer; a heating pipe is arranged on the steel frame and connected with a boiler. A steel frame is arranged on an on-site test pit, a heat preservation layer is arranged on the steel frame through a plurality of supporting columns and a framework, a greenhouse film is arranged on the heat preservation layer, a heating pipe is arranged on the steel frame, and the heating pipe is connected with a boiler. The stability of the greenhouse is guaranteed through the steel frame, the multiple supporting columns and the framework, the greenhouse can be suitable for the strong wind environment, the negative temperature problem in winter can be solved through warm air provided by the heat preservation layer, the greenhouse film and the boiler, and the greenhouse can well adapt to the negative temperature environment in winter and the strong wind environment.

Description

Technical Field

[0001] This utility model belongs to the field of immersion test technology, specifically relating to a heat-insulating greenhouse device for conducting in-situ immersion tests. Background Technology

[0002] Loess exhibits significant collapsibility characteristics, and engineering disasters caused by loess collapse are commonplace. Before any engineering project in loess areas, a collapsibility assessment of the loess should be conducted. The site grade and collapsibility grade obtained from the assessment directly determine the cost of foundation treatment. Large-scale in-situ immersion tests are one of the important methods for conducting collapsibility assessments. Important projects have undergone in-situ immersion tests of varying scales before construction, providing crucial data support for engineering design and construction. Previously, large-scale immersion tests were primarily conducted under suitable natural ambient temperatures, but many projects, due to time constraints, require in-situ immersion tests to be conducted in cold, windy environments.

[0003] However, conducting large-scale immersion tests on self-weight collapsible loess sites under negative winter temperatures and strong winds faces severe challenges, including freezing and frost heave of the test pit water surface and the impact of strong winds on the accuracy of settlement observation data. Current insulation measures and equipment are not well adapted to the negative winter temperatures and strong winds. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a heat-insulating greenhouse device for conducting in-situ immersion tests. This invention includes heating pipes inside the greenhouse, with an insulation layer at the top for heat preservation. This covers the entire water injection system and observation points of the field test pit, ensuring that winter field immersion test pit tests can be successfully conducted on self-weight collapsible loess sites.

[0005] According to some embodiments, this utility model provides a heat-insulating greenhouse device for conducting in-situ immersion tests, adopting the following technical solution:

[0006] A heat-insulating greenhouse device for conducting in-situ immersion tests includes a steel frame set on a test pit, multiple support columns set on the steel frame, and a skeleton set on the multiple support columns.

[0007] The frame is provided with an insulation layer, and a greenhouse film is provided on the insulation layer; heating pipes are provided on the steel frame, and the heating pipes are connected to a boiler.

[0008] Furthermore, the multiple support columns on the skeleton are evenly distributed.

[0009] Furthermore, along the center of the test pit towards the edge, the height of the multiple support columns decreases sequentially.

[0010] Furthermore, multiple support columns are set at equal intervals along the center of the test pit towards the edge.

[0011] Furthermore, the skeleton is a hemispherical structure.

[0012] Furthermore, the skeleton includes multiple straight rods arranged along the center of the field test pit towards the edge, and multiple circular rods connecting the multiple straight rods.

[0013] Furthermore, connecting strips are installed between adjacent support columns.

[0014] Furthermore, the heating pipes are evenly laid on the test pit on site.

[0015] Furthermore, steel wires are provided on the greenhouse film, with both ends of the steel wires respectively attached to the frame.

[0016] Furthermore, the insulation layer is made of rock wool insulation material.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model sets up a steel frame on the test pit, and sets up an insulation layer on the steel frame through multiple support columns and a skeleton. A greenhouse film is set on the insulation layer, and heating pipes are set on the steel frame and connected to a boiler. The steel frame, multiple support columns and skeleton ensure the stability of the greenhouse, which can be used in windy environments. The warm air provided by the insulation layer, greenhouse film and boiler can solve the problem of negative temperature in winter, and can adapt well to negative temperature and windy environments in winter.

[0019] 2. This utility model adopts the method of setting support columns on steel frame, which makes installation and disassembly convenient.

[0020] 3. This utility model covers the surface of the insulation layer with a greenhouse film, which enhances the insulation effect. The greenhouse film is tightened by steel wire to prevent it from being blown away in strong winds. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a schematic diagram of the greenhouse structure of this utility model;

[0023] Figure 2 This is a top view of the greenhouse structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the skeleton structure of this utility model;

[0025] The components include: 1. Steel frame; 2. Support column; 3. Skeleton; 301. Straight rod; 302. Round rod; 4. Insulation layer; 5. Greenhouse film; 6. Boiler; 7. Heating pipe; 8. Connecting strip. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0028] Example 1:

[0029] like Figure 1 As shown, to avoid the impact of freezing of the submerged water surface due to negative temperatures and strong winds on the settlement deformation monitoring device, this embodiment provides a heat-insulating greenhouse device for conducting in-situ immersion tests. Its size is larger than the immersion test pit, covering it to provide good insulation and prevent the impact of strong winds on the settlement observation points; it also provides insulation for the immersion test pit, avoiding the influence of freezing and strong winds on settlement deformation data. The heat-insulating greenhouse device includes a steel frame 1 spanning the test pit, with support columns 2 on the steel frame 1. A frame 3 is installed on the top of the support columns 2 by welding or binding. An insulation layer 4 is covered on the surface of the frame 3 by bolts or binding. A greenhouse film 5 is installed outside the insulation layer 4. Heating pipes 7 are laid on the steel frame 1, and the heating pipes 7 are connected to a boiler 6.

[0030] In this embodiment, the size of the insulation greenhouse can be set according to the diameter of the test pit to ensure that the greenhouse can cover the entire water injection system and observation points of the test pit. For easy installation and disassembly, support columns 2 can be set on the steel frame 1, and the steel frame 1 and the support columns 2 can be connected by threads.

[0031] Optionally, multiple support columns 2 are arranged at equal intervals from the inside to the outside, and the height of the multiple support columns 2 decreases sequentially from the center to both sides.

[0032] Optionally, the height of the support column 2 shall not exceed 1m.

[0033] like Figure 1 As shown, one section of the insulation greenhouse contains seven support columns 2. The bottom of the support columns 2 is fixed by a steel frame 1, ensuring that the bottom of the steel frame 1 is 0.5m away from the upper surface of the filter material in the test pit. The support columns 2 are made of 100×50 galvanized steel pipes to ensure structural stability.

[0034] like Figure 2As shown, the heat-insulating shed has a circular structure, and the heat-insulating shed and the on-site test pit are arranged in concentric circles.

[0035] Optionally, the surface of the insulation layer 4 is covered with a greenhouse film 5, which is tightened by steel wire.

[0036] The insulation layer 4 uses rock wool as the insulation material, with a thickness of 50mm. The greenhouse film 5 is covered on top of the rock wool, and steel wire ropes are used to tighten the greenhouse film 5 again to prevent it from being blown away in strong winds.

[0037] Optionally, the heating pipes 7 are evenly laid inside the insulated greenhouse. The heating pipes 7 are laid on the horizontal surface of the steel frame 1, with a spacing of 1m to ensure uniform heat distribution. The main function of the heating pipes 7 is to heat the air and prevent the air temperature from dropping below 0℃, thus preventing the water in the test pit from freezing.

[0038] The boiler 6 is used to supply heat to the heating pipes 7. Optionally, the boiler 6 can be implemented using existing technology, or a non-pressurized 80-type boiler can be used, equipped with a 4.5kw booster pump, to operate continuously around the clock, ensuring that the heating pipes are not frozen and maintaining a warm environment throughout the greenhouse.

[0039] like Figure 3 As shown, optionally, connecting strips 8 are also provided between adjacent support columns 2. The structural diagram of the support columns 2 on a vertical cross-section of the insulated greenhouse shows that the support column 2 at the very center is the tallest, with the height decreasing sequentially on the other two sides, and they are symmetrically arranged. The support columns 2 on this cross-section and the frame 3 form an isosceles triangle. To make the overall support structure more robust, connecting strips 8 can be installed between two adjacent support columns 2. The connecting strips 8 are made of 50×30 galvanized steel pipe. The connecting strips 8 and the support columns 2 can be firmly connected by welding to ensure overall stability.

[0040] The frame 3 includes multiple straight rods 301 arranged from the center of the test pit to the edge, and multiple circular rods 302 connecting the multiple straight rods 301, which ensures the stability of the frame 3.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat-insulating greenhouse device for conducting in-situ immersion tests, characterized in that, It includes a steel frame set on the test pit, multiple support columns set on the steel frame, and a skeleton set on the multiple support columns; The frame is provided with an insulation layer, and a greenhouse film is provided on the insulation layer; heating pipes are provided on the steel frame, and the heating pipes are connected to a boiler.

2. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, The multiple support columns on the frame are evenly distributed.

3. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, Along the center of the test pit towards the edge, the height of the multiple support columns decreases sequentially.

4. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, Multiple support columns are set at equal intervals along the center of the test pit towards the edge.

5. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, The skeleton is a hemispherical structure.

6. The heat-insulating greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, The framework includes multiple straight rods arranged along the center of the test pit towards the edge, and multiple circular rods connecting the multiple straight rods.

7. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, Connecting strips are installed between adjacent support columns.

8. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, The heating pipes were laid evenly on the test pit.

9. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, The greenhouse film is provided with steel wires, and the two ends of the steel wires are respectively set on the frame.

10. The insulated greenhouse device for conducting in-situ immersion tests as described in claim 1, characterized in that, The insulation layer is made of rock wool insulation material.

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