CN217758674U - Static pressure embedded type water and soil pressure testing device capable of being recycled - Google Patents
Static pressure embedded type water and soil pressure testing device capable of being recycled Download PDFInfo
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- CN217758674U CN217758674U CN202221937888.8U CN202221937888U CN217758674U CN 217758674 U CN217758674 U CN 217758674U CN 202221937888 U CN202221937888 U CN 202221937888U CN 217758674 U CN217758674 U CN 217758674U
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- 239000002689 soil Substances 0.000 title claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 230000003068 static effect Effects 0.000 title claims abstract description 45
- 239000011148 porous material Substances 0.000 claims abstract description 17
- 238000004064 recycling Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
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- 238000007906 compression Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a static pressure embedded type water and soil pressure testing device which can be recycled, comprising an installation component, a plurality of pressure gauges and a plurality of acquisition lines; the mounting assembly comprises a sensor fixing piece and two connectors, the connectors are connected to two ends of the sensor fixing piece, the sensor fixing piece and the connectors are in hollow fit to form a circuit channel, and external threads are formed on the connectors; a plurality of sensor mounting holes are formed on the periphery of the sensor fixing piece, and the pressure gauge is fixed in the sensor mounting holes; the collecting wire is arranged in the circuit channel in a penetrating way and is respectively connected with the pressure gauges. The utility model discloses a formula soil and water pressure testing arrangement is buryyed to static pressure of circulated use can install pore water pressure gauge and soil pressure gauge in four side directions are nimble to can reduce the disturbance to original state soil underground through the mode of static pressure, and can adopt equipment to extract it after a project measurement is accomplished, can also recycle after the demarcation.
Description
Technical Field
The utility model relates to a geotechnical engineering tests technical field, especially relates to a formula soil and water pressure test device is buryyed to static pressure of circulated use.
Background
The stability of the rock-soil mass serving as the foundation of the building and the structure is directly related to the safety of the building and the structure, and the stress state of the rock-soil mass is one of important means for evaluating the stability of the rock-soil mass. At present, a soil pressure gauge and a pore water pressure gauge are generally arranged in a rock-soil body or on an interface of an underground structure and a soil body for monitoring and acquiring the change condition of the stress state of the rock-soil body, and the reliability of a water and soil pressure device and a testing method is crucial to acquiring high-quality rock-soil body stress state data.
At present, the burying of water and soil pressure sensors in rock and soil bodies is usually realized by adopting a drilling method, wherein before the sensors are buried, a drill hole with the diameter larger than that of the sensors needs to be drilled at a corresponding position, then the sensors are fixed on a bracket and are placed in the holes, and then backfilling and protection are carried out. The problems that the rock-soil body structure in a certain range around the sensor is seriously damaged and the stress state is completely changed, the physical and mechanical parameters of a backfill material are greatly different from those of original soil, the backfill quality is difficult to control and the like mainly exist in the process of embedding by a drilling method, so that the quality of water and soil pressure test data is difficult to control. In addition, the conventional soil pressure test only carries out a stress test in one direction, the soil body is used as an anisotropic material, and the soil pressure change data in only one direction is used for evaluating the state of the soil body, so that certain limitation exists. According to the classical soil mechanics theory, the soil pressure and the excess pore water pressure need to be analyzed in a coordinated mode, the soil pressure sensor and the pore water pressure sensor are distributed in a hole dividing mode in the conventional method, certain positions can be staggered up and down even if the sensors are embedded in the same hole, the collected data are not the soil pressure and the pore water pressure in the same position in the strict sense, and therefore analysis and judgment of the data are affected. Conventional water and soil pressure sensors are disposable consumables, cannot be recycled, and do not accord with the low-carbon economy concept.
Disclosure of Invention
To not enough among the above-mentioned prior art, the utility model provides a formula soil and water pressure testing arrangement is buryyed to circulated use's static pressure can install pore water pressure gauge and soil pressure gauge in four side directions are nimble to bury the disturbance that can reduce the original state soil underground through the mode of static pressure underground, and can adopt equipment to extract it after a project measurement is accomplished, can also recycle after the demarcation.
In order to achieve the purpose, the utility model provides a static pressure embedded type water and soil pressure testing device which can be recycled, comprising an installation component, a plurality of pressure gauges and a plurality of acquisition lines; the mounting assembly comprises a sensor fixing piece and two connectors, the connectors are connected to two ends of the sensor fixing piece, the sensor fixing piece and the connectors are in hollow fit to form a circuit channel, and external threads are formed on the connectors; a plurality of sensor mounting holes are formed on the periphery of the sensor fixing piece, and the pressure gauge is fixed in the sensor mounting holes; the collecting wire penetrates through the circuit channel and is respectively connected with the pressure gauge.
Preferably, the pressure gauge comprises an earth pressure gauge and/or a pore water pressure gauge.
Preferably, the sensor fixing member is in the shape of a cube or a cylinder; when the sensor fixing piece is cubic, the four side surfaces of the sensor fixing piece are respectively provided with the sensor mounting hole; when the sensor fixing piece is a cylinder, four sensor mounting holes are uniformly formed in the side wall of the sensor fixing piece along the circumferential direction.
Preferably, when the sensor holder is cubic, the pressure gauge is circular or square; when the sensor fixing part is a cylinder, the pressure gauge is arc-shaped.
The utility model discloses owing to adopted above technical scheme, make it have following beneficial effect:
(1) The utility model discloses a static pressure of circulated use buries formula water and soil pressure test device adopts the static pressure mode to bury the mode of the original state soil body and lays, compares in the drilling method of burying underground that conventional water and soil pressure sensor adopted, and the reduction that can be great is to the disturbance of the original state soil body, and then can acquire more reliable data. In addition, the method can greatly reduce the burying cost, and avoid the problems of slurry treatment caused by burying by a drilling method, data distortion or pressure-bearing water upwelling and the like caused by improper water isolation among elements.
(2) The utility model discloses a soil and water pressure test device is buryyed to static pressure that can recycle can install the pressure gauge on the side to can install soil pressure gauge and pore water pressure gauge in a flexible way, be fit for multiple test demand. In addition, the multi-surface test can acquire the stress state change of the rock-soil body in multiple directions, and can analyze the stability of the rock-soil body more finely and the influence on the normal use and the structural safety of the building.
(3) The utility model discloses a soil and water pressure test device is buryyed to static pressure that can recycle after accomplishing corresponding test work, can retrieve with lifting equipment and recycle, great reduction the test cost to the advantage that has the low carbon environmental protection.
Drawings
Fig. 1 is a schematic structural diagram of a static pressure embedded type water and soil pressure testing device capable of being recycled according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a static pressure embedded type water and soil pressure testing device capable of being recycled according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a static pressure embedded type water and soil pressure testing apparatus capable of being recycled according to a third embodiment of the present invention;
fig. 4 is a schematic system structure diagram of a method for using a static pressure embedded type water and soil pressure testing device capable of being recycled according to an embodiment of the present invention.
Detailed Description
The following description of the preferred embodiment of the present invention will be given in detail with reference to the accompanying drawings, fig. 1 to 4, so as to better understand the functions and features of the present invention.
Referring to fig. 1 and 4, a static pressure embedded type water and soil pressure testing apparatus for recycling according to an embodiment of the present invention includes a mounting assembly 1, a plurality of pressure gauges and a plurality of collecting lines 4; the mounting assembly 1 comprises a sensor fixing piece and two connectors, the connectors are connected to two ends of the sensor fixing piece, the sensor fixing piece and the connectors are in hollow fit to form a line channel, and external threads are formed on the connectors; a plurality of sensor mounting holes are formed at the periphery of the sensor fixing piece, and the pressure gauge is fixed in the sensor mounting holes; the collecting wires 4 are arranged in the circuit channel in a penetrating way and are respectively connected with the pressure gauges.
The pressure gauges include an earth pressure gauge 2 and/or a pore water pressure gauge 3.
In this embodiment, the sensor fixing member is cubic; a sensor mounting hole is formed on each of the four side surfaces of the sensor fixing piece; the pressure gauge is circular.
The embodiment of the utility model provides a but a cyclic use static pressure burys formula soil and water pressure test device 5 buries each part function that the in-process relates to underground as follows:
a static pressure embedded type water and soil pressure testing device 5 which can be recycled;
the hollow connecting compression rod 6 is in threaded connection with the recyclable static pressure embedded type water and soil pressure testing device 5, the connecting compression rod 6 can be spliced, the recyclable static pressure embedded type water and soil pressure testing device 5 can be conveniently conveyed to the depth of a soil layer to be tested by the static pressure device, and the collecting line 4 can penetrate out of the hollow inner pipe in the splicing process.
And the conical head 7 with the internal thread is arranged below the bottommost static pressure embedded type water and soil pressure testing device 5 capable of being recycled and mainly used for reducing the bottommost soil embedding resistance in the static pressure embedding process.
And an acquisition line bundle 8 formed by collecting the plurality of acquisition lines 4.
The rock-soil mass 9 needs to be subjected to water and soil pressure tests.
The protection piece 10 of the water and soil pressure test hole site position ground surface department, the main effect is to prevent that external disturbance from causing the collection line 4 of device to produce the damage.
The utility model discloses a static pressure of circulated use buries formula soil and water pressure test device 5's application method based on this embodiment, including the step:
s1: determining the number of the recyclable static pressure embedded type water and soil pressure testing devices 5 according to testing requirements, and the type and number of the pressure gauges, the measuring range of the pressure gauges and the length of the acquisition line 4 which are embedded in each recyclable static pressure embedded type water and soil pressure testing device 5;
s2: if the pore water pressure gauge 3 is needed, the pore water pressure gauge 3 needs to be saturated according to the standard requirements before embedding, and the water permeable stones of the pore water pressure gauge 3 are ensured to be in a water overflowing state by binding a water bag at the outer side of the pore water pressure gauge 3 before embedding;
s3: according to the number and the depth of the recyclable static pressure embedded type water and soil pressure testing devices 5 which need to be embedded in each hole site, preparing a plurality of recyclable static pressure embedded type water and soil pressure testing devices 5, a plurality of hollow connecting compression rods 6 and a conical head 7 which are matched in number;
s4: determining a hole position to be embedded on site, and if a hard terrace is arranged on the ground surface, breaking the hard terrace;
s5: the method comprises the following steps of firmly connecting a conical head 7 with internal threads with a lower end connector of a recyclable static pressure embedded type water and soil pressure testing device 5 to be embedded at the lowest part, then installing connecting compression rods 6 on the upper part of the recyclable static pressure embedded type water and soil pressure testing device 5 section by section and pressing the connecting compression rods into rock and soil bodies 9 at hole sites by using a static pressure device, and ensuring that each recyclable static pressure embedded type water and soil pressure testing device 5 is correct at the splicing position of the connecting compression rods 6 if a plurality of recyclable static pressure embedded type water and soil pressure testing devices 5 need to be pressed; when each static pressure embedded type water and soil pressure testing device 5 capable of being recycled is sent to the hole site, the water binding bag bound on the pore water pressure gauge 3 is untied; in the process of installing and pressing the connecting compression rod 6, the collection line 4 is always kept to penetrate out of the connecting compression rod 6 and the internal line channel of the static pressure embedded type water and soil pressure testing device 5 which can be recycled;
s6: when all the connecting compression rods 6 and the static pressure embedded type water and soil pressure testing device 5 which can be recycled are subjected to static pressure to the designed depth, the top of the topmost connecting compression rod 6 is ensured to be lower than the ground surface by a certain height, a protection piece 10 is arranged on the ground surface, the protection piece 10 consists of a protection barrel on the lower part and a protection cover on the top, the protection barrel is made of concrete, hard PVC (polyvinyl chloride) pipes or steel pipes, the diameter of the protection barrel is slightly larger than that of the connecting compression rods 6, the protection cover is matched with the protection barrel in size, holes are formed in the protection cover, and the size of the holes can ensure that all the acquisition lines 4 of the current hole site can penetrate out of the protection barrel;
s7: the acquisition line 4 is connected with an automatic acquisition box 11, and the automatic acquisition box 11 realizes automatic acquisition and wireless transmission of data;
s8: after the data acquisition is finished, the connecting pressure rod 6 and the recyclable static pressure embedded type water and soil pressure testing device 5 are pulled out and recovered by a pulling device, and calibration and quality inspection are carried out for subsequent reuse.
Referring to fig. 2, a second embodiment of the present invention provides a recycled static pressure embedded type water and soil pressure testing apparatus, which has a structure substantially the same as that of the first embodiment, and the difference is: the earth pressure gauge 2 and/or the pore water pressure gauge 3 are square.
Referring to fig. 3, a second embodiment of the present invention provides a recycled static pressure embedded type water and soil pressure testing apparatus, which has a structure substantially the same as that of the first embodiment, and the difference is:
the sensor fixing part of the mounting component 1 is a cylinder; four sensor mounting holes are uniformly formed in the circumferential direction on the side wall of the sensor fixing piece. The soil pressure gauge 2 and/or the pore water pressure gauge 3 are curved.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (4)
1. A static pressure embedded type water and soil pressure testing device capable of being recycled is characterized by comprising a mounting assembly, a plurality of pressure gauges and a plurality of collecting lines; the mounting assembly comprises a sensor fixing piece and two connectors, the connectors are connected to two ends of the sensor fixing piece, the sensor fixing piece and the connectors are in hollow fit to form a circuit channel, and external threads are formed on the connectors; a plurality of sensor mounting holes are formed at the periphery of the sensor fixing piece, and the pressure gauge is fixed in the sensor mounting holes; the collecting wire penetrates through the circuit channel and is respectively connected with the pressure gauges.
2. The recyclable static submerged water and soil pressure testing apparatus as described in claim 1, wherein the pressure gauge comprises an earth pressure gauge and/or a pore water pressure gauge.
3. The apparatus of claim 2, wherein the sensor mount is in the form of a cube or cylinder; when the sensor fixing piece is cubic, the four side surfaces of the sensor fixing piece are respectively provided with the sensor mounting hole; when the sensor fixing piece is a cylinder, four sensor mounting holes are uniformly formed in the side wall of the sensor fixing piece along the circumferential direction.
4. The static pressure submerged soil and water pressure testing apparatus capable of recycling according to claim 3, wherein when the sensor fixing member is cubic, the pressure gauge is circular or square; when the sensor fixing piece is a cylinder, the pressure gauge is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221937888.8U CN217758674U (en) | 2022-07-25 | 2022-07-25 | Static pressure embedded type water and soil pressure testing device capable of being recycled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221937888.8U CN217758674U (en) | 2022-07-25 | 2022-07-25 | Static pressure embedded type water and soil pressure testing device capable of being recycled |
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| Publication Number | Publication Date |
|---|---|
| CN217758674U true CN217758674U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221937888.8U Active CN217758674U (en) | 2022-07-25 | 2022-07-25 | Static pressure embedded type water and soil pressure testing device capable of being recycled |
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| CN (1) | CN217758674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125929A (en) * | 2022-07-25 | 2022-09-30 | 上海勘察设计研究院(集团)有限公司 | Recyclable static pressure embedded type water and soil pressure testing device and using method thereof |
-
2022
- 2022-07-25 CN CN202221937888.8U patent/CN217758674U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115125929A (en) * | 2022-07-25 | 2022-09-30 | 上海勘察设计研究院(集团)有限公司 | Recyclable static pressure embedded type water and soil pressure testing device and using method thereof |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |