CN108195748B

CN108195748B - Test device and method for treating effect of yin-yang slope

Info

Publication number: CN108195748B
Application number: CN201810042275.XA
Authority: CN
Inventors: 孙斌祥; 杨丽君; 张昌扬; 潘述平; 詹培敏
Original assignee: Shaoxing University Yuanpei College
Current assignee: Shaoxing University Yuanpei College
Priority date: 2018-01-17
Filing date: 2018-01-17
Publication date: 2023-08-15
Anticipated expiration: 2038-01-17
Also published as: CN108195748A

Abstract

The invention mainly relates to a test device for treating yin and yang slope effects, which comprises a sample box and a permeable wall ventilation pipe, wherein a plurality of ventilation holes are formed in the permeable wall ventilation pipe, and ventilation pipes are arranged in the permeable wall ventilation pipe. The design has few variables and convenient experiment in the experimental process, can prevent the generation of redundant variables, and ensures the high efficiency of the experimental process and the accuracy of the experimental result.

Description

Test device and method for treating effect of yin-yang slope

Technical Field

The invention relates to a test device and a method for treating yin and yang slope effects, in particular to a test device and a method for treating yin and yang slope effects of a permeable wall ventilation pipe.

Background

In the frozen soil area of the Qinghai-Tibet plateau, the road can cause uneven distribution of the roadbed along a transverse temperature field due to the difference of the trend and solar radiation at two sides of the roadbed, and uneven settlement of the frozen soil layer under the embankment is further caused, which is a so-called yin-yang slope effect. The yin-yang slope effect brings great engineering hazard, so that a special ventilation pipe roadbed form is urgently needed to be researched at present to meet the engineering requirement.

Disclosure of Invention

In order to solve the problems, the invention provides the test device and the test method for treating the effect of yin-yang slope, and the method has few variables in the test process and is convenient to test, the generation of redundant variables can be prevented, and the high efficiency of the test process and the accuracy of the test result are ensured.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a test device for treating yin-yang slope effect comprises a sample box and a permeable wall ventilation pipe, wherein a plurality of ventilation holes are formed in the permeable wall ventilation pipe, and a ventilation pipe is arranged in the permeable wall ventilation pipe.

The wall-penetrating ventilation pipe is a plastic hollow pipe with the diameter of 5-12 cm and the length of 0.8-1.5 m.

The ventilation pipe is characterized in that a plurality of ventilation holes with the distance of 2-4 cm are uniformly formed in the ventilation pipe, and the diameter of each ventilation hole is 0.5-1.5 cm.

The permeable wall ventilation pipe is wrapped with a layer of stainless steel wire mesh.

The ventilation pipe is a plastic hollow pipe, the outer diameter of the ventilation pipe is the same as the inner diameter of the ventilation pipe 1, the ventilation pipe is shorter than the ventilation pipe, and the length of the ventilation pipe is 0.7-1.3 m.

A test method for treating yin-yang slope effect comprises the following steps:

step one, filling sandy soil or broken stone filler in a sample box;

wrapping a layer of stainless steel wire mesh on the outer side of the permeable wall ventilation pipe, and burying the permeable wall ventilation pipe into the filler;

step three, inserting a ventilation pipe into the ventilation pipe with the permeable wall;

step four, arranging a temperature sensor in the sample box according to test requirements;

and fifthly, placing the sample box into a temperature control box to start the test and recording.

The invention has the following beneficial effects:

1. a test device for treating yin-yang slope effect comprises a sample box and a permeable wall ventilation pipe, wherein a plurality of ventilation holes are formed in the permeable wall ventilation pipe, and a ventilation pipe is arranged in the permeable wall ventilation pipe. The design has few variables and convenient experiment in the experimental process, can prevent the generation of redundant variables, and ensures the high efficiency of the experimental process and the accuracy of the experimental result.

2. The stainless steel wire mesh is wrapped outside the permeable wall ventilation pipe, so that the permeable wall ventilation pipe can play a good role in protection.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a perspective view of a sample box of the present invention.

Reference numerals in the drawings: 1. a wall penetrating ventilation tube; 2. a ventilation pipe; 3. a vent hole; 4. a wire netting; 5. sample box.

Detailed Description

The invention will be explained in more detail by the following embodiments:

as shown in fig. 1, 2 and 3, the invention provides a test device for treating yin and yang slope effect, which comprises a sample box 5 and a permeable wall ventilation pipe 1, wherein a plurality of ventilation holes 3 are formed in the permeable wall ventilation pipe 1, and a ventilation pipe 2 is arranged in the permeable wall ventilation pipe 1. The design has few variables and convenient experiment in the experimental process, can prevent the generation of redundant variables, and ensures the high efficiency of the experimental process and the accuracy of the experimental result.

The permeable wall ventilation pipe 1 is a plastic hollow pipe with the diameter of 5-12 cm and the length of 0.8-1.5 m.

A plurality of ventilation holes 3 with the interval of 2-4 cm are uniformly formed in the ventilation pipe 1, and the diameter of each ventilation hole 3 is 0.5-1.5 cm.

The stainless steel wire mesh 4 is wrapped outside the permeable wall ventilation pipe 1, so that the permeable wall ventilation pipe can play a good role in protection.

The vent pipe 2 is a plastic hollow pipe, the outer diameter of the vent pipe 2 is the same as the inner diameter of the permeable wall vent pipe 1, the vent pipe 2 is shorter than the permeable wall vent pipe 1, the length of the vent pipe 2 is 0.7-1.3 m, the pipe wall thickness is as thin as possible, and the flow of air in the pipe is not influenced.

The test tool is used for testing the effect of treating the yin-yang slope, and the test method comprises the following steps:

embodiment one:

step one, filling sand or broken stone filler in the sample box 5.

And step two, wrapping a layer of stainless steel wire mesh 4 on the outer side of the permeable wall ventilation pipe 1, and burying the permeable wall ventilation pipe 1 into the filler.

Step three, the ventilation pipe 2 is inserted into the ventilation pipe 1.

And step four, arranging a temperature sensor in the sample box 5 according to test requirements.

And fifthly, placing the sample box 5 into a temperature control box to start the test and recording.

In the third step, after the ventilation pipe 2 is inserted into the through-wall ventilation pipe 1 for test, part of the opening of the through-wall ventilation pipe 1 for test is covered by the ventilation pipe 2, which plays a role in simulating the opening mode of part of the opening of the through-wall ventilation pipe 1.

In the test process, only the length of the ventilation pipe 2 extending into the ventilation pipe 1 of the permeable wall is required to be changed, and the ventilation pipe of the permeable wall used in the test is not required to be replaced. Therefore, the state of the filler is not changed, and the generation of variables affecting the accuracy of the test result is prevented.

Embodiment two:

the length of the ventilation pipe used in the test is 0.9m, and the length of the ventilation pipe of the permeable wall is 1.05m;

length of extended ventilation pipe	Temperature sensor monitoring value
		0cm	The temperature difference of soil mass under the sunny slope and the cloudy slope is about 1.2 ℃ on average
30cm	The soil temperature difference under the sunny slope and the cloudy slope is about 0.75 ℃ on average
		45cm	The soil temperature difference under the sunny slope and the cloudy slope is about 0.42 ℃ on average
55cm	The temperature difference of soil mass under the sunny slope and the cloudy slope is about 0.15 ℃ on average

Summary of effects: along with the continuous penetration of the ventilation pipe 2 into the ventilation pipe 1 with the permeable wall, the temperature difference between the soil layers under the shade slope and the sunny slope is gradually reduced, and the effect of the shade slope is gradually relieved, which indicates that the test method can effectively research the specific effect of the non-uniform perforated ventilation pipe on treating the effect of the shade slope.

Claims

1. The test method for treating the effect of yin-yang slope is characterized by comprising the following steps of:

step one, filling sandy soil or broken stone filler in a sample box;

the wall-penetrating ventilation pipe is a plastic hollow pipe with the diameter of 5-12 cm and the length of 0.8-1.5 m; a plurality of ventilation holes with the distance of 2-4 cm are uniformly arranged on the ventilation pipe with the diameter of 0.5-1.5 cm;

the ventilation pipe is a plastic hollow pipe, the outer diameter of the ventilation pipe is the same as the inner diameter of the ventilation pipe with a permeable wall, the ventilation pipe is shorter than the ventilation pipe with a permeable wall, and the length of the ventilation pipe is 0.7-1.3 m;