CN210037508U - Simple and easy testing tool of ground body moisture content - Google Patents
Simple and easy testing tool of ground body moisture content Download PDFInfo
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- CN210037508U CN210037508U CN201821807736.XU CN201821807736U CN210037508U CN 210037508 U CN210037508 U CN 210037508U CN 201821807736 U CN201821807736 U CN 201821807736U CN 210037508 U CN210037508 U CN 210037508U
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Abstract
The utility model provides a simple and easy measuring tool of ground body moisture content, the long-term monitoring of the inside moisture migration process of specially adapted earthen ruins or sandstone grotto. This instrument is nested formula structure, and the outer tube is the hollow cylindrical timber that the texture is even, and the inner core is the solid cylindrical stainless steel of taking the bolt, has easy processing, and is with low costs, and the installation is little to the soil mass destructiveness, need not the power supply, can realize advantages such as indoor or open-air long-term continuous monitoring. The defects of low efficiency, high destructiveness and high operation cost of high-end testing equipment/instruments adopted in the traditional drying method are overcome. The water content in the site rock-soil body is converted according to the water content of the wood sleeves at different depths, and the method is simple and high in accuracy. The utility model discloses the survey that the different grade type soil shallow layer moisture content distributes equally is applicable to, provides the powerful support in order to formulate calamity/harm preventive measure for the research moisture migration law.
Description
Technical Field
The utility model relates to a be suitable for long-term monitoring of inside moisture migration process of earthen ruins or sandstone grotto belongs to soil moisture monitoring technology field, concretely relates to simple and easy testing tool of ground body moisture content.
Background
The earthen ruins are precious vestiges taking soil as a main building material, the sandstone grottos are grottos dug on the sandstone cliff wall, and the sandstone grottos are reserved in the development process of human historical civilization, so that the earthen ruins have important historical, artistic and scientific values. However, due to the action of water, the weathering of the soil body and sandstone in the site is increased, even partial areas collapse, shortenine or armor raising occurs on the wall paintings and statues in the cave, and the storage condition is continuously deteriorated. Therefore, in order to effectively prevent the occurrence and development of the site diseases and delay the degradation of the site, the method is of great importance for measuring the water content distribution in the soil body or the sandstone of the site and monitoring the water migration process for a long time. At present, the water content testing approach of soil at home and abroad mainly comprises: the traditional drying method of the sample and the determination by using the soil moisture sensor are two methods.
(1) The traditional drying method of the sample comprises the following steps: the method comprises the steps of loading a sample collected on site in an aluminum box, drying the sample in an oven to constant weight, and finally determining the water content of the soil body according to the mass change of the sample before and after drying. The method is simple to operate and accurate in result, but in the measuring process, the sample drying needs longer time, and the efficiency is lower. In addition, because the measurement needs to be carried out by taking a sample, the destructiveness to the site soil body or sandstone is also high, and frequent monitoring cannot be carried out.
(2) Sensor assay: the moisture content distribution is determined by laying sensors in the soil, for example: time Domain Reflectometry (TDR), frequency domain reflectometry/frequency domain methods (FDR/FD method), resistivity method, capacitance method, microwave method, neutron method, infrared remote sensing, ground penetrating radar, gamma ray method, nuclear magnetic resonance method, and the like. The method mainly utilizes the relation between the dielectric constant, the magnetic conductivity or the capacitance of the soil sample and the water content of the soil sample to indirectly obtain the water content of the soil body. Although the laying/burying of the instrument/equipment can be completed at one time, the measuring speed is fast, but the data acquisition and the post-processing are complex. In addition, under the condition of difficult field power supply or extreme climate, the defect that instruments/equipment cannot normally operate exists, and the instruments/equipment also need to be regularly maintained, and if the moisture content change of the soil body is continuously measured for a long time, the operation cost is high.
SUMMERY OF THE UTILITY MODEL
To the defect that prior art exists, the utility model provides a simple and easy testing tool of ground body moisture content. The tool is of a nested structure, damage to the site body during installation is small, the tool can adapt to various severe weather changes, and the tool is simple to operate and low in processing cost. The tool can meet the requirement of testing the water content in rock-soil bodies at different depths by increasing and decreasing the number of the outer sleeves and the length of the metal inner core. The distribution of the moisture content of the rock-soil mass in a certain period can be reflected by the change of the moisture content of the outer sleeve, and the calculation method is simple and has high accuracy.
One of the purposes of the utility model is to provide a simple and easy testing tool of ground body moisture content, its characterized in that: this testing tool uses inner core 2 as the installation pole, and testing arrangement is a plurality of outer pipe casings 1, and outer pipe casing 1 is hollow form, nests in proper order on inner core 2, threaded rod 7 movable mounting on the inner core 2 through it is on carrying pole 3.
Further, the inner core 2 is preferably stainless steel.
Further, the outer jacket 1 is preferably a wood material having a uniform texture.
The bottom end of the inner core 2 is provided with a fixed bolt head 4 for limiting the outer sleeve 1.
The threaded rod 7 is fitted with a nut 5 and a washer 6 which define the outer sleeve 1.
Another object of the utility model is to provide a use method based on simple and easy testing tool of ground moisture content, the use step is as follows:
step 1: before testing, numbering each section of outer sleeve 1 and weighing initial quality;
step 2: according to the sequence of the numbers from big to small, the outer sleeve is sleeved on the inner core 2 from the top in sequence and is fixed by a nut 5;
and step 3: during testing, holes are drilled at the testing position, the hole diameter is slightly larger than the outer diameter of the outer sleeve, and the hole depth is the testing depth.
And 4, step 4: the bottom end of the tool is inserted downwards into the test hole, the top nut 5 is exposed out of the surface of the soil body, and the peripheral gap is filled with original soil and compacted.
And 5: after a certain period, taking out the testing tool, weighing the mass of each section of the outer sleeve 1 after moisture absorption, and calculating the water content of the outer sleeves at different depths according to the mass change of the outer sleeves before and after testing.
The utility model has the advantages that: 1. the utility model has the advantages of easy processing and low cost, and solves the defect of high operating cost of continuously using high-end test equipment/instruments;
2. the utility model has the advantages of simple installation, easy operation and less damage to the site soil body;
3. the utility model does not need power supply, and is suitable for monitoring the change of the water content inside the indoor and outdoor ancient sites;
4. the utility model provides a method according to outer tube moisture content calculation ground body moisture content, the computational process is simple, the degree of accuracy is high, can be used to the internal moisture content of analysis certain period ground change and moisture migration law.
Drawings
FIG. 1 is a schematic view of the installation structure of the present invention;
FIG. 2 is an exploded view of the mounting structure of the present invention;
the main parts in the figures are numbered: the device comprises an outer sleeve 1, an inner core 2, a lifting rod 3, a fixed bolt head 4, a nut 5, a gasket 6 and a threaded rod 7.
Detailed Description
Example 1
The invention will now be further described with reference to the following examples and drawings:
fig. 1 and 2 show the installation structure of the present invention, the outer sleeve 1 is made of wood with uniform texture, each section has a height of 10cm, and the shape is a hollow cylinder. The inner core 2 is made of stainless steel and is shaped like a solid cylinder, the diameter size of the inner core is 1-2mm smaller than the inner diameter of the outer sleeve 1, and the bottom end of the inner core is provided with a fixed bolt head 4. The length of the fixed bolt head 4 is the same as the outer diameter of the outer sleeve 1, and no extra obstruction is generated in the process of penetrating into the rock soil. The top end of the inner core 2 is provided with a threaded rod 7, and the threaded rod 7 can be movably nested in the lifting rod 3. The lifting rod 3 is an operating handle. Meanwhile, after the outer sleeve 1 is nested on the inner core 2, the outer sleeve needs to be fixed by a nut 5 and a gasket 6 to prevent the outer sleeve from moving. During processing, the inner diameter and the outer diameter of the outer sleeve 1 can be properly increased according to the increase of the test depth, and the length of the stainless steel inner core 2 is 10cm higher than the test depth.
Test tool usage: before testing, each outer sleeve 1 is numbered and the initial mass m is weighed1(ii) a Then, according to the sequence of the numbers from big to small, the outer sleeve is sleeved into the inner core 2 from the top in sequence, and finally, the outer sleeve is fixed by the bolt 3. When the test is started, firstly, drilling a hole at a test position, wherein the hole diameter is slightly larger than the outer diameter of the outer sleeve, and the hole depth is the test depth; then, inserting the bottom end of the tool into the testing hole downwards, and exposing the top nut out of the surface of the soil body; finally, the peripheral gap is filled with original soil and compacted. After a certain period (1 month, 1 quarter, etc.), taking out the test tool, and weighing the mass m of each outer sleeve after moisture absorption2And then, calculating the water content of the outer sleeves at different depths according to the mass change of the outer sleeves before and after the test.
The method for measuring the water content of the rock-soil mass comprises the following steps: firstly, in the process of measuring position drilling, taking a soil sample every 10cm, and measuring the water content of original rock-soil bodies at different depths and the water content of an outer sleeve in the original rock-soil sample by adopting a drying method in a laboratory; then, determining the correlation between the water content of the outer sleeve and the water content of the original rock-soil body through regression analysis; and finally, converting the measured water content of the outer sleeve into the water content of rock-soil bodies at different depths according to the incidence relation between the measured water content and the outer sleeve, and further analyzing the water migration rule.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a simple and easy testing tool of ground body moisture content which characterized in that: this testing tool uses the inner core as the installation pole, and testing arrangement is a plurality of outer pipe casings, and the outer pipe casing is hollow form, nests in proper order on the inner core, threaded rod movable mounting through on it on the inner core is on carrying the pole.
2. The simple testing tool for water content of rock-soil mass according to claim 1, characterized in that: the inner core is made of stainless steel materials.
3. The simple testing tool for water content of rock-soil mass according to claim 1, characterized in that: the outer sleeve is made of wood with uniform texture.
4. The simple testing tool for water content of rock-soil mass according to claim 1, characterized in that: the bottom end of the inner core is provided with a fixed bolt head for limiting the outer sleeve.
5. The simple testing tool for water content of rock-soil mass according to claim 1, characterized in that: a nut and a washer are mounted on the threaded rod to define an outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807736.XU CN210037508U (en) | 2018-11-05 | 2018-11-05 | Simple and easy testing tool of ground body moisture content |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807736.XU CN210037508U (en) | 2018-11-05 | 2018-11-05 | Simple and easy testing tool of ground body moisture content |
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| Publication Number | Publication Date |
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| CN210037508U true CN210037508U (en) | 2020-02-07 |
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| CN201821807736.XU Active - Reinstated CN210037508U (en) | 2018-11-05 | 2018-11-05 | Simple and easy testing tool of ground body moisture content |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443976A (en) * | 2018-11-05 | 2019-03-08 | 敦煌研究院 | A kind of Rock And Soil moisture content easily-testing tool and method |
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2018
- 2018-11-05 CN CN201821807736.XU patent/CN210037508U/en active Active - Reinstated
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443976A (en) * | 2018-11-05 | 2019-03-08 | 敦煌研究院 | A kind of Rock And Soil moisture content easily-testing tool and method |
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