CN113884426A - Single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage - Google Patents

Single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage Download PDF

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Publication number
CN113884426A
CN113884426A CN202111319308.9A CN202111319308A CN113884426A CN 113884426 A CN113884426 A CN 113884426A CN 202111319308 A CN202111319308 A CN 202111319308A CN 113884426 A CN113884426 A CN 113884426A
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China
Prior art keywords
probe
test box
main body
measuring
water pressure
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CN202111319308.9A
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Chinese (zh)
Inventor
陈继彬
冯世清
罗益斌
沈攀
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China Southwest Architectural Design and Research Institute Co Ltd
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China Southwest Architectural Design and Research Institute Co Ltd
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Priority to CN202111319308.9A priority Critical patent/CN113884426A/en
Publication of CN113884426A publication Critical patent/CN113884426A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082—Investigating permeability by forcing a fluid through a sample
    • G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage, which comprises a test box device and a probe device, wherein the probe device is connected with the test box device, the probe device comprises a probe main body, a water pressure gauge group and a probe top device are arranged on the probe main body, the probe top device comprises a probe top block and a guide cone, the probe top block is connected with the top of the probe main body, the guide cone is connected with the probe top block, a top connector and a top adapter are arranged on the probe top block, the top connector is positioned at the end part of the probe top block, and the top adapter is positioned on the circumferential surface of the probe top block. The water pressure meter group comprises a water pressure meter in the probe cavity and a water pressure meter in the measuring hole. The test box device comprises a test box main body, a test box cover and a measuring and reading instrument, wherein the water pressure meter in the probe cavity and the water pressure meter in the measuring hole are respectively electrically connected with the measuring and reading instrument, and data measured by the water pressure meter in the probe cavity and the water pressure meter in the measuring hole are displayed by the measuring and reading instrument.

Description

Single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage
Technical Field
The invention belongs to the technical field of geological exploration, and particularly relates to a single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage.
Background
In the process of surveying a deep stratum at present, a lateral pressure test is one of in-situ testing means widely applied in geotechnical engineering, a drill hole is formed in a tested stratum by utilizing a drill rod, a lateral pressure device is placed in the drill hole, the lateral pressure device is pressurized to transversely expand, a volume-pressure or stress-strain relation curve of transverse expansion of the drill hole can be obtained according to the reading of the test, accordingly, the lateral pressure or stress-strain relation curve can be used for estimating the bearing capacity of a foundation, measuring the strength parameter, the deformation parameter and the foundation bed coefficient of soil, and estimating the foundation settlement, the bearing capacity of a single pile and the settlement.
At present, the lateral pressure instrument comprises a pre-drilling type, a self-drilling type and a press-in type, and the pre-drilling type is mainly used in the market. The structure of the existing lateral pressure instrument probe causes high manufacturing and installation cost and later maintenance cost, and consumes long time. And the water level cannot be accurately measured during the investigation.
Disclosure of Invention
The invention aims to solve the problems and provide a single-cavity high-pressure pre-drilling type lateral pressure instrument which can accurately measure the water level and simultaneously measure the water level and the seepage flow during exploration.
In order to solve the technical problems, the technical scheme of the invention is as follows: a single-cavity high-pressure pre-drilling type lateral pressure instrument capable of measuring water level and seepage simultaneously comprises a test box device and a probe device, wherein the probe device is connected with the test box device and comprises a probe main body, a water pressure gauge group and a probe top device are installed on the probe main body, the probe top device comprises a probe top block and a guide cone, the probe top block is connected with the top of the probe main body, the guide cone is connected with the probe top block, a top connector and a top adapter are arranged on the probe top block, the top connector is located at the end part of the probe top block, and the top adapter is located on the circumferential surface of the probe top block; the water pressure meter group comprises a probe cavity water pressure meter and a measuring hole water pressure meter, the measuring hole water pressure meter is located at the bottom of the probe main body, the probe cavity water pressure meter is located at the middle of the probe main body, the test box device comprises a test box main body, a test box cover and a measuring and reading instrument, the probe main body is installed inside the test box main body, the test box cover is located on the test box main body, the measuring and reading instrument is installed on the test box cover, the probe cavity water pressure meter and the measuring hole water pressure meter are respectively electrically connected with the measuring and reading instrument, and data measured by the probe cavity water pressure meter and the measuring hole water pressure meter are displayed through the measuring and reading instrument.
Preferably, the probe head block is a hollow solid of revolution structure.
Preferably, the guide cone has a trapezoidal cross section.
Preferably, the top connector is NC11/26-bit drill rod joint with top adapter NC11/26 teeth to M36 joints.
Preferably, the test box main body fixing part is installed inside the test box main body, and the test box main body fixing part is connected with the probe main body and used for fixing the probe main body.
Preferably, the bottom of the test box main body is provided with test box rollers.
Preferably, the test box cover is rotatably connected with the test box main body, a test box cover supporting piece is arranged on the test box main body, the test box cover supporting piece is of an arc-shaped structure, and the test box cover supporting piece is used for supporting the test box cover.
Preferably, the test box main body is provided with a test box main body door, and the test box main body door is rotatably connected with the test box main body.
The invention has the beneficial effects that: the single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring the water level and the seepage can accurately measure the water level during the investigation period according to the arranged water pressure gauge in the probe cavity and the water pressure gauge in the measuring hole. Meanwhile, the structure is simple, the operation is convenient, and the manufacturing cost is low.
Drawings
FIG. 1 is a schematic structural diagram of a single-cavity high-pressure pre-drilling type lateral pressure instrument capable of measuring water level and seepage simultaneously according to the invention;
FIG. 2 is a schematic view of the construction of the probe apparatus of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of an open structure of the test chamber cover according to the present invention.
Description of reference numerals: 1. a test box device; 2. a probe device; 10. a test box main body; 11. testing the box cover; 12. a measuring and reading instrument; 13. a test box main body fixing piece; 14. a test box roller; 15. a test chamber cover support; 16. a test box main body door; 21. a water pressure gauge group; 22. a probe tip device; 211. a water pressure gauge in the probe cavity; 212. measuring a water pressure meter in the hole; 221. a probe tip block; 222. a guide cone; 223. a top connector; 224. a top adapter.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments:
as shown in fig. 1 to 4, the single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage provided by the invention comprises a test box device 1 and a probe device 2, wherein the probe device 2 is connected with the test box device 1, the probe device 2 comprises a probe main body, a water pressure gauge group 21 and a probe top device 22 are installed on the probe main body, the probe top device 22 comprises a probe top block 221 and a guide cone 222, the probe top block 221 is connected with the top of the probe main body, the guide cone 222 is connected with the probe top block 221, a top connector 223 and a top adapter 224 are arranged on the probe top block 221, the top connector 223 is positioned at the end part of the probe top block 221, and the top adapter 224 is positioned on the circumferential surface of the probe top block 221. The water pressure gauge group 21 comprises a probe cavity water pressure gauge 211 and a measuring hole water pressure gauge 212, the measuring hole water pressure gauge 212 is positioned at the bottom of the probe main body, and the probe cavity water pressure gauge 211 is positioned in the middle of the probe main body. The test box device 1 comprises a test box main body 10, a test box cover 11 and a measuring and reading instrument 12, wherein the probe main body is installed inside the test box main body 10, the test box cover 11 is located on the test box main body 10, the measuring and reading instrument 12 is installed on the test box cover 11, a probe cavity water pressure meter 211 and a measuring hole water pressure meter 212 are respectively electrically connected with the measuring and reading instrument 12, and data measured by the probe cavity water pressure meter 211 and the measuring hole water pressure meter 212 are displayed through the measuring and reading instrument 12.
In this embodiment, the probe chamber hydraulic gauge 211 and the in-bore hydraulic gauge 212 are both prior art devices for measuring data related to hydraulic pressure changes. The data of the probe intracavity water pressure meter 211 are two and are symmetrically distributed in the probe main body. The probe main body is of a cylindrical structure, a probe main body hole is formed in the middle of the probe main body, the water pressure meter 211 in the probe cavity is located in the middle of the probe main body hole, and the water pressure meter 212 in the measuring hole is located at the bottom of the probe main body hole and used for measuring corresponding water pressure data.
The probe top block 221 is a hollow solid of revolution structure, and the bottom of the probe top block 221 is inserted into the probe body for fixation. The probe body is connected with external equipment through a top connector 223 and a top adapter 224 on the probe top block 221, so that the application range of the probe body is enlarged, and meanwhile, the probe body can also be fixed.
The guide cone 222 has a trapezoidal cross-section, and the guide cone 222 is annularly distributed between the probe head block 221 and the top of the probe body.
Top connector 223 is NC11/26-bit drill pipe connection head, top adapter 224 NC11/26 teeth to M36 joints. In the actual use process, the corresponding model can be adopted according to the design requirement so as to increase the practicability of the invention.
The test box main body fixing part 13 is installed inside the test box main body 10, and the test box main body fixing part 13 is connected with the probe main body and used for fixing the probe main body. The test box main body fixing member 13 is an open fixing device for fixing the probe main body. The test box main body fixing member 13 is an existing fixing device, and any device capable of fixing the probe main body can be used.
In this embodiment, the probe main part is current mature technology equipment, through the probe intracavity water pressure gauge 211 and survey interior water pressure gauge 212 that set up in probe main part inside, can be in probe main part use, through the respective pressure difference data of probe intracavity water pressure gauge 211 and survey interior water pressure gauge 212, carries out accurate survey to the water level that the probe main part contacted.
The data measured by the probe intracavity water pressure meter 211 and the water pressure meter 212 in the measuring hole are transmitted to the measuring and reading instrument 12 through the conducting wire in real time for displaying, so that an operator can master the measured data in real time. The meter 12 is a prior art device for displaying data measured by the probe intracavity water pressure meter 211 and the in-bore water pressure meter 212.
The bottom of the test box main body 10 is provided with the test box rollers 14, in this embodiment, the number of the test box rollers 14 is four, and the test box rollers 14 can be set to be a universal wheel structure, so that an operator can conveniently move the device provided by the invention.
The test box main body 10 is also provided with two test box main body handles which are symmetrically distributed on the test box main body 10. The structure of the test box main body handle is U-shaped, so that the test box is convenient for operators to carry.
The test box cover 11 is rotatably connected with the test box main body 10, the test box cover supporting piece 15 is arranged on the test box main body 10, the test box cover supporting piece 15 is of an arc-shaped structure, and the test box cover supporting piece 15 is used for supporting the test box cover 11, so that the safety of the test box cover 11 is ensured.
The test box main body 10 is provided with a test box main body door 16, and the test box main body door 16 is rotatably connected with the test box main body 10. The probe device 2 is placed inside the test box body 10, and the probe device 2 is taken out by opening the test box body door 16, thereby facilitating the operator to perform the related work. After the probe device 2 is used up, the test case body door 16 is opened, and the probe device 2 is placed.
In the using process of the invention, the probe body is taken out, and before the probe body is put down, the probe body is pre-filled with water, namely, a certain water pressure exists. In the process of gradually lowering the probe body, after the initial water level is met, the water pressure gauge 211 in the probe cavity and the water pressure gauge 212 in the measuring hole can know the depth of the initial water level by measuring the change of the water pressure inside and outside the probe, measure the change condition of the water pressure at different depths in the test process, measure and calculate the permeability coefficient of a test layer according to the water level change in the test period, and obtain related data so as to facilitate subsequent related operation.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.

Claims (8)

1. The utility model provides a can measure water level and seepage's single-chamber formula high pressure side pressure appearance of boring in advance which characterized in that: the water pressure measuring device comprises a test box device (1) and a probe device (2), the probe device (2) is connected with the test box device (1), the probe device (2) comprises a probe main body, a water pressure gauge group (21) and a probe top device (22) are installed on the probe main body, the probe top device (22) comprises a probe top block (221) and a guide cone (222), the probe top block (221) is connected with the top of the probe main body, the guide cone (222) is connected with the probe top block (221), a top connector (223) and a top adapter (224) are arranged on the probe top block (221), the top connector (223) is located at the end part of the probe top block (221), and the top adapter (224) is located on the circumferential surface of the probe top block (221); the water pressure meter group (21) comprises a probe cavity water pressure meter (211) and a measuring hole water pressure meter (212), the measuring hole water pressure meter (212) is located at the bottom of a probe main body, the probe cavity water pressure meter (211) is located in the middle of the probe main body, the test box device (1) comprises a test box main body (10), a test box cover (11) and a measuring and reading instrument (12), the probe main body is installed inside the test box main body (10), the test box cover (11) is located on the test box main body (10), the measuring and reading instrument (12) is installed on the test box cover (11), the probe cavity water pressure meter (211) and the measuring hole water pressure meter (212) are respectively and electrically connected with the measuring and reading instrument (12), and data measured by the probe cavity water pressure meter (211) and the measuring hole water pressure meter (212) are displayed through the measuring and reading instrument (12).
2. The single-cavity high-pressure pre-drilling type bypass pressure instrument capable of measuring water level and seepage simultaneously according to claim 1, is characterized in that: the probe top block (221) is of a hollow revolution body structure.
3. The single-cavity high-pressure pre-drilling type bypass pressure instrument capable of measuring water level and seepage simultaneously according to claim 1, is characterized in that: the section of the guide cone (222) is of a trapezoidal structure.
4. The single-cavity high-pressure pre-drilling type bypass pressure instrument capable of measuring water level and seepage simultaneously according to claim 1, is characterized in that: the top connector (223) is an NC11/2-6 tooth drill rod connector, and the top adapter (224) is an NC11/2-6 tooth adapter M36 connector.
5. The single-cavity high-pressure pre-drilling type bypass pressure instrument capable of measuring water level and seepage simultaneously according to claim 1, is characterized in that: the test box comprises a test box main body (10), wherein a test box main body fixing piece (13) is installed inside the test box main body (10), and the test box main body fixing piece (13) is connected with a probe main body and used for fixing the probe main body.
6. The single-cavity high-pressure pre-drilling type bypass pressure instrument capable of measuring water level and seepage simultaneously according to claim 1, is characterized in that: and a test box roller (14) is arranged at the bottom of the test box main body (10).
7. The single-cavity high-pressure pre-drilling type bypass pressure instrument capable of measuring water level and seepage simultaneously according to claim 1, is characterized in that: the test box cover (11) is rotatably connected with the test box main body (10), a test box cover supporting piece (15) is arranged on the test box main body (10), the test box cover supporting piece (15) is of an arc-shaped structure, and the test box cover supporting piece (15) is used for supporting the test box cover (11).
8. The single-cavity high-pressure pre-drilling type bypass pressure instrument capable of measuring water level and seepage simultaneously according to claim 1, is characterized in that: the test box is characterized in that a test box main body door (16) is installed on the test box main body (10), and the test box main body door (16) is rotatably connected with the test box main body (10).
CN202111319308.9A 2021-11-09 2021-11-09 Single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage Pending CN113884426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111319308.9A CN113884426A (en) 2021-11-09 2021-11-09 Single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111319308.9A CN113884426A (en) 2021-11-09 2021-11-09 Single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage

Publications (1)

Publication Number Publication Date
CN113884426A true CN113884426A (en) 2022-01-04

Family

ID=79016844

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111319308.9A Pending CN113884426A (en) 2021-11-09 2021-11-09 Single-cavity high-pressure pre-drilling type lateral pressure instrument capable of simultaneously measuring water level and seepage

Country Status (1)

Country Link
CN (1) CN113884426A (en)

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