CN117471067A - Landslide body water content in-situ monitoring device and landslide body water content in-situ monitoring method - Google Patents
Landslide body water content in-situ monitoring device and landslide body water content in-situ monitoring method Download PDFInfo
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- CN117471067A CN117471067A CN202311622852.XA CN202311622852A CN117471067A CN 117471067 A CN117471067 A CN 117471067A CN 202311622852 A CN202311622852 A CN 202311622852A CN 117471067 A CN117471067 A CN 117471067A
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 54
- 210000000476 body water Anatomy 0.000 title claims abstract description 43
- 238000012806 monitoring device Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 29
- 239000002689 soil Substances 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 230000001012 protector Effects 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000013178 mathematical model Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 3
- 239000011707 mineral Substances 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010998 test method Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 4
- 239000003673 groundwater Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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Abstract
The embodiment of the invention discloses a landslide body water content in-situ monitoring device and a landslide body water content in-situ monitoring method. The device comprises a conical barrel, a pressure detection device and an isolation protection piece; the pressure detection module is arranged in the shell; the isolation protection piece is arranged in the shell and is placed on the pressure detection module; forming a soil loading space between the conical barrel and the isolation protection piece; a plurality of water permeable holes are arranged on the side wall of the conical barrel. The device has a simple solution structure, and monitors the soil moisture content in the landslide body in real time according to the definition of the soil moisture content. Compared with the test equipment and the test method of capacitance type, ultrasonic type, electromagnetic pulse type, remote sensing type and the like, the invention does not need to establish mathematical models of the water content of the soil body and other acoustic and electric physical quantities, overcomes the deviation of water content results caused by different particle components and mineral components of the soil, is true and reliable in result, and provides powerful support for monitoring and early warning of landslide and research on landslide sliding mechanism.
Description
Technical Field
The invention relates to the technical field related to landslide monitoring, in particular to a landslide body water content in-situ monitoring device and a landslide body water content in-situ monitoring method.
Background
In order to monitor landslide disasters, the mechanism of deformation instability of landslide disasters is researched, the damage time of the landslide disasters is predicted, and further life and property loss is reduced, a large number of expert students and related staff perform landslide monitoring in a national range, and rich results are obtained. Through researches, the water content in the landslide has a great influence on landslide instability.
At present, the water content in the soil is obtained by adopting an indirect mode of ultrasonic wave, resistance and other variable quantity and a mathematical model of the water content of the soil in water content monitoring equipment adopted in landslide monitoring.
Although the method is more convenient and rapid than a drying method, the method is influenced by factors such as the particle components, mineral compositions, the pH value of groundwater and the like of soil, and particularly, the method is difficult to judge by using the same mathematical model for landslides with different lithologies or parts composed of different substances of oversized landslides in areas.
In addition, even for the soil under the same condition, the correlation coefficient of the fitted mathematical model is difficult to reach one hundred percent, and the obtained water content has a certain deviation from the actual water content.
Disclosure of Invention
Aiming at the defects of the prior art, one aspect of the invention discloses a landslide body water content in-situ monitoring device.
The landslide body water content in-situ monitoring device comprises a conical barrel, a pressure detection device and an isolation protection piece; the pressure detection device comprises a shell and a pressure detection module; the pressure detection module is arranged in the shell; the isolation protection piece is arranged in the shell and is arranged on the pressure detection module; the bottom of the conical barrel is connected with the top of the shell in a sealing way, so that a soil filling space is formed between the conical barrel and the isolation protection piece; a plurality of water permeable holes are arranged on the side wall of the conical barrel.
According to a preferred embodiment of the invention, the cone angle of the cone is a; wherein the cone angle alpha is 20-80 deg.
According to a preferred embodiment of the present invention, the cone comprises a cone-shaped barrel body and a barrel cover; the barrel cover is detachably arranged at the top of the frustum-shaped barrel body; the water permeable holes are uniformly formed in the frustum-shaped barrel body; the aperture of the water permeable hole is 0.5-1 mm.
According to a preferred embodiment of the invention, the insulation protection comprises a protection box.
According to a preferred embodiment of the present invention, the isolation protection further comprises an elastic protection film; the detection rod of the pressure detection module is connected in the protection box in a penetrating way, and the top of the detection rod is flush with the top of the protection box; the protective box is filled with lubricant. The elastic protection film is arranged on the top surface of the detection rod.
According to a preferred embodiment of the invention, the gap between the insulation protector and the housing is sealed by a sealing structure.
According to a preferred embodiment of the invention, the pressure detection module is a pressure sensor.
According to a preferred embodiment of the invention, both the cone and the insulation protection are made of a corrosion resistant material.
The invention further discloses an in-situ monitoring method for the water content of the landslide body.
The landslide body water content in-situ monitoring method comprises the following steps:
digging an installation pit on a monitored landslide body; dividing the excavated soil into the soil with the mass of m respectively 1 And m 2 Is a mixture of two parts; wherein the mass is m 1 The soil in the landslide body water content in-situ monitoring device is enough to fill the soil filling space in the landslide body water content in-situ monitoring device;
step (b), the mass is m 1 Is filled into the soil filling space in a layered manner; then, placing the landslide body water content in-situ monitoring device in the installation pit and filling the installation pit to be flat, so that the landslide body water content in-situ monitoring device is buried in the monitored landslide body; the signal power line of the pressure detection module in the landslide body water content in-situ monitoring device is led out of the ground;
step (c), the mass is as followsm 2 Weighing after drying the soil, and the mass after drying is m 2d The method comprises the steps of carrying out a first treatment on the surface of the The mass m is calculated by the formula (1) 1 Mass m of dried soil 1d ；
m 1d ＝m 1 ×m 2d /m 2 (1)；
A step (d) of measuring the real-time pressure F of the soil thereon by using the pressure detection module 1 The data are calculated through a formula (2) to obtain the real-time water content omega of the monitored landslide body;
ω＝(F 2 -m 1d ·g)/(m 1d ·g) (2)；
g in the formula (2) is gravity acceleration.
According to a preferred embodiment of the invention, in said step (b), the mass is m 1 After the soil layers are filled into the soil filling space, a gap is arranged between the top surface of the soil in the conical barrel and the top of the conical barrel.
The in-situ landslide body water content monitoring device and the in-situ landslide body water content monitoring method provided by the embodiment of the invention have at least one of the following technical effects:
1. the landslide body water content in-situ monitoring device and the landslide body water content in-situ monitoring method are based on a drying method, are accurate in data and are less affected by the outside.
2. The landslide body water content in-situ monitoring device and the landslide body water content in-situ monitoring method are simple in site construction, can be combined with drilling, pit detection and the like, and can realize remote monitoring by connecting a signal power line with a wireless transmission module.
3. The landslide body water content in-situ monitoring device and the landslide body water content in-situ monitoring method can be used for monitoring the landslide on site, and also can be used for indoor landslide physical simulation test and soil slope monitoring.
Additional features of the invention will be set forth in part in the description which follows. Additional features of part of the invention will be readily apparent to those skilled in the art from a examination of the following description and the corresponding figures or a study of the manufacture or operation of the embodiments. The features of the present disclosure may be implemented and realized in the practice or use of the various methods, instrumentalities and combinations of the specific embodiments described below.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. Like reference symbols in the various drawings indicate like elements. Wherein,
FIGS. 1, 2 and 3 are schematic structural diagrams of landslide body water content in-situ monitoring devices according to some embodiments of the present invention;
fig. 4 is a schematic diagram of the structure of a water permeable hole in an in-situ monitoring device for landslide mass water content according to some embodiments of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that if the terms "first," "second," and the like are referred to in the description of the present invention and the claims and the above figures, they are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the invention herein. Furthermore, if the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like are referred to, the indicated azimuth or positional relationship is based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Further, in the present invention, the terms "mounted," "configured," "provided," "connected," "sleeved," and the like are to be construed broadly if they relate to. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The invention discloses an in-situ monitoring device for water content of a landslide body.
As shown in fig. 1, 2 and 3, the landslide body water content in-situ monitoring device includes a tapered barrel 100, a pressure detection device 200 and an isolation protector 300.
Wherein the taper angle of the taper tub 100 is a. An angle (90-a/2) greater than the natural repose angle or internal friction angle of the monitored soil body. Therefore, on one hand, the pressure between the soil body in the barrel and the barrel wall can be reduced, the friction between the soil body in the barrel and the barrel wall is further reduced, and the system error is reduced; on the other hand, the inclined cylinder wall is beneficial to the external moisture entering the cylinder and the monitoring of the moisture content.
Preferably, the taper angle a of the taper tub 100 may be set to 20 ° to 80 °.
Illustratively, the cone 100 may include a cone-shaped tub body 110 and a tub cover 120. The tub cover 120 is detachably disposed at the top of the truncated cone-shaped tub 110. For example, the tub cover 120 may be detachably disposed on the top of the truncated cone-type tub 110 by a screw connection structure or a snap connection structure.
Preferably, both the truncated cone-shaped tub body 110 and the tub cover 120 of the cone-shaped tub 100 are made of a corrosion-resistant material, so that corrosion of the monitoring device by acidic or alkaline groundwater is prevented. For example, the truncated cone-shaped tub body 110 and the tub cover 120 of the cone-shaped tub 100 are made of PVC material.
In addition, the thicknesses of the frustum-shaped barrel body 110 and the barrel cover 120 of the conical barrel 100 can be set according to the needs, so that the conical barrel 100 is ensured to have enough rigidity to ensure that the conical barrel is not easy to deform, so that the conical barrel can bear the weight of the soil body at the upper part, and the water content measurement accuracy is prevented from being influenced by the deformation of the barrel cover and the like. For example, in some embodiments, the height of the tapered bucket 100 may be set to 10-40 cm, the bottom diameter may be set to 10-40 cm, and the thickness may be set to 3-10mm.
A plurality of water penetration holes 111 are provided on the sidewall of the cone-shaped tub 100 as shown in fig. 1 and 4. Illustratively, the water permeable holes 111 may be uniformly provided on the truncated cone-shaped tub 110. By arranging the water permeable holes 111 on the inclined cylinder wall, external moisture can be facilitated to enter the cylinder, thereby facilitating the monitoring of the moisture content.
Preferably, the diameter of the water permeable hole 111 may be set to 0.5-1 mm, so that moisture is convenient to enter, and large particles can be prevented from entering the conical barrel to influence the monitoring accuracy.
The pressure detecting device 200 includes a housing 210 and a pressure detecting module 220. The pressure detection module 220 is disposed within the housing 210.
For example, the pressure detection module 220 may employ a pressure sensor.
Wherein, the isolation protector 300 is disposed in the housing 210 and placed on the pressure detection module 220. The gap between the isolation protector 300 and the housing 210 is sealed by a sealing structure. For example, the gap between the spacer protector 300 and the housing 210 may be sealed by a sealing structure formed of a sealant or a gasket, or the like.
The bottom of the tub cone 100 is hermetically connected with the top of the housing 210 such that a soil loading space is formed between the tub cone 100 and the insulation protector 300.
Illustratively, in some embodiments, the spacer protector 300 may employ a protective case 310 or plate. The gap between the protection case 310 or the protection plate and the case 210 may be sealed by a sealing structure formed of a sealant or a sealing ring, etc.
Further, in some embodiments, the isolation protection 300 may further include an elastic protection film 320.
The sensing rod 221 of the pressure sensing module 220 is penetrated in the protection box 310, and the top of the sensing rod 221 is disposed flush with the top of the protection box 310. The elastic protective film 320 is provided on the top surface of the detection bar 221 so that a protective film can be formed between the pressure sensor and the soil to prevent erosion of the pressure sensor. The elastic protective film 320 may be an elastic plastic film. In addition, the inside of the protection case 310 is filled with a lubricant 330, which functions as a waterproof and lubrication detection rod of the pressure sensor. Wherein, the lubricant can be butter or vaseline.
Preferably, the isolation protector 300 is made of a corrosion-resistant material to prevent corrosion of the monitoring device by acidic or alkaline groundwater. For example, the isolation protector 300 may be made of PVC material.
The invention also discloses an in-situ monitoring method for the water content of the landslide body.
The landslide body water content in-situ monitoring method comprises the following steps:
and a step a, digging an installation pit on the monitored landslide body. Dividing the excavated soil into the soil with the mass of m respectively 1 And m 2 Is a part of the two parts of the formula (I). Wherein the mass is m 1 Is sufficient to fill the soil-loading space in the landslide body water content in-situ monitoring device as described in any one of the above embodiments.
Step b, the mass is m 1 Is filled into the soil filling space in a layered manner. Then, the landslide body water content in-situ monitoring device is placed in the installation pit and the installation pit is filled and leveled, so that the landslide body water content in-situ monitoring device is buried in the monitored landslide body. The signal power line 230 of the pressure detection module in the landslide body water content in-situ monitoring device is led out of the ground.
Step (c), the mass is m 2 Weighing after drying the soil, and the mass after drying is m 2d The method comprises the steps of carrying out a first treatment on the surface of the The mass m is calculated by the formula (1) 1 Mass m of dried soil 1d ；
m 2d ＝m 2 ×m 2d /m 2 (1)；
A step (d) of measuring the real-time pressure F of the soil thereon by using the pressure detection module 1 The data are calculated through a formula (2) to obtain the real-time water content omega of the monitored landslide body;
ω＝(F 1 -m 1d ·g)/(m 1d ·g) (2)；
g in the formula (2) is gravity acceleration.
Preferably, in said step (b), the mass is m 1 After the soil layers are filled into the soil filling space, a gap is arranged between the top surface of the soil in the conical barrel and the top of the conical barrel. For example, the top surface of the soil contained in the conical barrel and the bottom of the barrel cover should be kept with a space of 1cm, so that surrounding soil bodies are prevented from extruding the soil in the barrel, and the measuring result is prevented from being distorted.
Specifically, the landslide body water content in-situ monitoring method provided by the embodiment of the invention comprises the following steps:
step (a), digging a little more than the invention at the corresponding position of the landslide by using a soil digging tool according to the requirementIn the embodiment, the pit of the landslide body water content in-situ monitoring device is divided into two parts for weighing, and the mass of the soil at the embedded equipment position is m respectively 1 And m 2 Wherein the mass is m 1 Is sufficient to fill the cone;
step (b) of setting the mass as m 1 The method comprises the steps of filling soil into a conical barrel in a layered manner, covering a barrel cover, burying the landslide body water content in-situ monitoring device into a dug pit, leading out a signal power line to the ground for transmitting pressure data, and filling the pit with soil;
step (c) of setting the mass as m 2 The mass of the dried soil is m after being brought back into the room for drying 2d By the formula m 1d ＝m 2 ×m 2d /m 2 Calculating to obtain the mass m 1 Mass m of dried soil 1d ；
A step (d) of measuring the real-time pressure F of the soil thereon by using the pressure sensor 1 Data by the formula ω= (F 1 -m 2d ·g)/(m 2d G) calculating the real-time water content of the monitored landslide body; wherein g is gravity acceleration, and omega is the real-time water content of the monitored landslide body.
In addition, in order to prevent surrounding soil from squeezing the soil in the barrel, the measurement result is distorted. The top surface of the soil contained in the conical barrel can be set to reserve a clearance space of 1cm with the bottom of the barrel cover (1).
The landslide body water content in-situ monitoring device and the landslide body water content in-situ monitoring method are simple in equipment, and the soil water content in the landslide body is monitored in real time according to the definition of the soil water content. Compared with the test equipment and the test method of capacitance type, ultrasonic type, electromagnetic pulse type, remote sensing type and the like, the invention does not need to establish mathematical models of the water content of the soil body and other acoustic and electric physical quantities, overcomes the deviation of water content results caused by different particle components and mineral components of the soil, is true and reliable in result, and provides powerful support for monitoring and early warning of landslide and research on landslide sliding mechanism.
It should be noted that all of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except mutually exclusive features and/or steps.
In addition, the foregoing detailed description is exemplary, and those skilled in the art, having the benefit of this disclosure, may devise various arrangements that, although not explicitly described herein, are within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the invention is defined by the claims and their equivalents.
Claims (10)
1. The landslide body water content in-situ monitoring device is characterized by comprising a conical barrel (100), a pressure detection device (200) and an isolation protection piece (300);
the pressure detection device (200) comprises a housing (210) and a pressure detection module (220); the pressure detection module (220) is arranged in the shell (210);
the isolation protection (300) is arranged in the shell (210) and is arranged on the pressure detection module (220);
the bottom of the cone (100) is connected with the top of the shell (210) in a sealing way, so that a soil loading space is formed between the cone (100) and the isolation protection piece (300);
a plurality of water permeable holes (111) are arranged on the side wall of the conical barrel (100).
2. Landslide body water content in-situ monitoring device according to claim 1, characterized in that the cone angle of the cone-shaped barrel (100) is a;
wherein, (90-a/2) is larger than the natural repose angle or the internal friction angle of the monitoring soil body.
3. Landslide body water content in-situ monitoring device according to claim 2, characterized in that the cone angle a of the cone-shaped barrel (100) is 20-80 °.
4. The landslide mass water content in-situ monitoring device of claim 1, wherein the cone-shaped barrel (100) comprises a cone-shaped barrel body (110) and a barrel cover (120); the barrel cover (120) is detachably arranged at the top of the frustum-shaped barrel body (110);
the water permeable holes (111) are uniformly formed in the frustum-shaped barrel body (110); the aperture of the water permeable hole (111) is 0.5-1 mm.
5. The landslide mass water content in-situ monitoring device of claim 1 wherein the isolation protection member (300) comprises a protection box (310).
6. The landslide mass water content in-situ monitoring device of claim 6 wherein the isolation protector (300) further comprises an elastic protective film (320);
a detection rod (221) of the pressure detection module (220) is connected in the protection box (310) in a penetrating way, and the top of the detection rod (221) is flush with the top of the protection box (310); -a lubricant (330) is filled in the protective box (310);
the elastic protection film (320) is provided on the top surface of the detection rod (221).
7. Landslide body water content in-situ monitoring device according to claim 1, characterized in that the gap between the isolation protection (300) and the housing (210) is sealed by a sealing structure.
8. Landslide mass water content in-situ monitoring device according to claim 1, characterized in that the pressure detection module (220) is a pressure sensor;
both the cone (100) and the isolation protection (300) are made of a corrosion resistant material.
9. The in-situ monitoring method for the water content of the landslide body is characterized by comprising the following steps of:
step (a), in the monitored slideDigging out a mounting pit on the slope body; dividing the excavated soil into the soil with the mass of m respectively 1 And m 2 Is a mixture of two parts; wherein the mass is m 1 Is sufficient to fill the soil-loading space in the landslide mass water content in-situ monitoring device according to any one of claims 1 to 9;
step (b), the mass is m 1 Is filled into the soil filling space in a layered manner; then, placing the landslide body water content in-situ monitoring device in the installation pit and filling the installation pit to be flat, so that the landslide body water content in-situ monitoring device is buried in the monitored landslide body; wherein, a signal power line (230) of a pressure detection module in the landslide body water content in-situ monitoring device is led out of the ground;
step (c), the mass is m 2 Weighing after drying the soil, and the mass after drying is m 2d The method comprises the steps of carrying out a first treatment on the surface of the The mass m is calculated by the formula (1) 1 Mass m of dried soil 1d ；
m 1d ＝m 1 ×m 2d /m 2 (1)；
A step (d) of measuring the real-time pressure F of the soil thereon by using the pressure detection module 1 The data are calculated through a formula (2) to obtain the real-time water content omega of the monitored landslide body;
ω＝(F 1 -m 1d ·g)/(m 1d ·g) (2)；
g in the formula (2) is gravity acceleration.
10. The method of in-situ monitoring of water content of a landslide of claim 9 wherein in step (b) the mass is m 1 After the soil layers are filled into the soil filling space, a gap is arranged between the top surface of the soil in the conical barrel and the top of the conical barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311622852.XA CN117471067A (en) | 2023-11-30 | 2023-11-30 | Landslide body water content in-situ monitoring device and landslide body water content in-situ monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311622852.XA CN117471067A (en) | 2023-11-30 | 2023-11-30 | Landslide body water content in-situ monitoring device and landslide body water content in-situ monitoring method |
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| Publication Number | Publication Date |
|---|---|
| CN117471067A true CN117471067A (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311622852.XA Pending CN117471067A (en) | 2023-11-30 | 2023-11-30 | Landslide body water content in-situ monitoring device and landslide body water content in-situ monitoring method |
Country Status (1)
| Country | Link |
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| CN (1) | CN117471067A (en) |
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2023
- 2023-11-30 CN CN202311622852.XA patent/CN117471067A/en active Pending
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