CN113482065A - Device and method for measuring soil disturbance transverse pressure in pile pipe mud entering process - Google Patents
Device and method for measuring soil disturbance transverse pressure in pile pipe mud entering process Download PDFInfo
- Publication number
- CN113482065A CN113482065A CN202110784824.2A CN202110784824A CN113482065A CN 113482065 A CN113482065 A CN 113482065A CN 202110784824 A CN202110784824 A CN 202110784824A CN 113482065 A CN113482065 A CN 113482065A
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- soil
- pressure cell
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- soil pressure
- dowel bar
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- 239000002689 soil Substances 0.000 title claims abstract description 138
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000011241 protective layer Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims description 7
- 238000009530 blood pressure measurement Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Soil Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a device and a method for measuring soil disturbance transverse pressure in a pile pipe mud entering process, which comprises the following components: a bearing plate and a fixed sleeve; the first end of the hollow dowel bar is fixedly connected with the bearing plate, the second end of the hollow dowel bar is fixedly connected with the fixing sleeve, and the hollow dowel bar and the fixing sleeve are provided with threading holes for accommodating soil pressure cell signal wires; the soil pressure cell is fixed on the soil pressure cell fixing plate, the soil pressure cell fixing plate is arranged in the fixing sleeve, and a data acquisition unit is arranged in the soil pressure cell and used for measuring opposite soil body pressure and transmitting the soil body pressure to the controller through the signal line. The device can effectively prevent the soil pressure cell from generating displacement in the soil body extrusion disturbance process to cause inaccurate data.
Description
Technical Field
The invention relates to a device and a method for measuring soil disturbance transverse pressure in a pile pipe mud entering process, and belongs to the technical field of piling.
Background
Pile pipe pile driving income mud in-process can carry out the disturbance to the soil body around, if there are foundation structure such as other pile pipes or other pile foundations around the pile pipe scene of pile driving, then the soil body disturbance in the operation process must lead to the fact certain influence to current basis. The magnitude of this effect needs to be concluded by experimental testing.
The method is important for measuring soil disturbance in the test process of installing and piling, and is related to the comparison condition of theoretical data and actual data. A reasonable distribution measurement mode is selected, so that the condition that the pile pipe cannot be influenced greatly in the pile driving process can be ensured, and data can be acquired within an effective influence range.
Disclosure of Invention
Aiming at the outstanding problems, the invention provides a device and a method for measuring the soil body disturbance transverse pressure in the process of pile pipe entering mud, the method can effectively measure the soil body disturbance condition in the process of pile pipe entering mud, avoids the abnormal conditions of the soil pressure box such as deflection or falling of the soil pressure box and the like, and can effectively prevent the soil pressure box from generating displacement in the process of soil body extrusion disturbance to cause inaccurate data.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a stake pipe is gone into soil body disturbance lateral pressure measuring device of mud in-process, includes following part:
a bearing plate and a fixed sleeve;
the first end of the hollow dowel bar is fixedly connected with the bearing plate, the second end of the hollow dowel bar is fixedly connected with the fixing sleeve, and the hollow dowel bar and the fixing sleeve are provided with threading holes for accommodating soil pressure cell signal wires;
the soil pressure cell comprises a soil pressure cell and a soil pressure cell fixing plate, wherein the soil pressure cell is fixed on the soil pressure cell fixing plate, the soil pressure cell fixing plate is arranged in the fixing sleeve, and a data acquisition unit is arranged in the soil pressure cell and used for measuring opposite soil body pressure and transmitting the soil pressure to the controller through a soil pressure cell signal line.
The device for measuring the soil disturbance transverse pressure in the process of the pile pipe entering the mud is preferably characterized in that the fixing sleeve is of a circular cup-shaped structure, and the threading hole is formed in one end, connected with the second end of the hollow dowel bar, of the fixing sleeve.
The device for measuring the soil disturbance transverse pressure in the process of putting the pile pipe into the mud is characterized in that preferably, the threading hole is formed in the first end of the hollow dowel bar, and the hollow dowel bar is configured to accommodate the soil pressure cell signal wire to penetrate through the hollow dowel bar.
The device for measuring the soil disturbance transverse pressure in the process of the pile pipe entering the mud is characterized in that a waterproof protective layer is coated on the outer surface of the soil pressure box.
The device for measuring the soil disturbance transverse pressure in the process of the pile pipe entering the mud is characterized in that the waterproof protective layer is preferably a resin protective layer.
Based on the soil disturbance transverse pressure measuring device in the process of entering the pile pipe into the mud, the method also provides an assembling method of the device, and the method comprises the following steps:
1) welding the supporting plate with a first end of the hollow dowel bar, and welding the fixing sleeve with a second end of the hollow dowel bar;
2) welding the soil pressure box fixing plate into the fixing sleeve according to the thickness of the soil pressure box;
3) the soil pressure cell signal wire penetrates through the threading hole in the fixed sleeve and the threading hole in the second end of the hollow dowel bar and then is electrically connected with the controller;
4) and the soil pressure box is bonded on the soil pressure box fixing plate by using an adhesive, resin is poured into the fixing sleeve, and the resin is flush with the end part of the fixing sleeve.
Based on the soil disturbance transverse pressure measuring device in the process of entering the pile pipe into the mud, the invention also provides a construction method of the device, which comprises the following steps:
1) excavating a soil layer to a depth required to be pre-buried, determining the distance from a central position to the soil pressure box, and righting the soil disturbance transverse pressure measuring device to be perpendicular to a central axis of the central position;
2) and arranging a plurality of soil disturbance transverse pressure measurement devices according to the requirement, backfilling soil to the next depth layer to be arranged, and continuously arranging the soil disturbance transverse pressure devices.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the measuring device can be prefabricated in advance, the field construction or operation period can be reduced, the machine use cost and the like can be reduced, the research and development cost is reduced, the measuring method can be embedded according to the required depth, the operability is more convenient, the measuring precision of the soil pressure cell can be greatly improved, and the data accuracy is improved.
2. The measuring method of the invention can not generate displacement due to extrusion in the measuring process, has more accurate measuring data, can be suitable for measuring the pressure of the soil body which is put under pile pipes with various specifications, and has universal adaptability.
3. The measuring device and the method can effectively measure the soil body disturbance condition in the process of the pile pipe entering the mud, avoid abnormal conditions such as the soil pressure cell is inclined or the soil pressure cell falls off, and can effectively prevent the soil pressure cell from generating displacement in the process of soil body extrusion disturbance to cause inaccurate data.
Drawings
Fig. 1 is a schematic view of a soil disturbance lateral pressure measuring device in a pile pipe mud entering process according to an embodiment of the present invention;
fig. 2 is a schematic construction process diagram of the soil disturbance lateral pressure measuring device according to the embodiment of the invention;
fig. 3 is a schematic diagram illustrating a testing principle of the soil disturbance lateral pressure measuring device according to the embodiment of the present invention;
1-epoxy resin; 2-a soil pressure cell; 3-soil pressure cell fixing plate; 4-fixing the sleeve; 5-soil pressure cell signal line; 6-hollow dowel bar; 7-a bearing plate; 8-upper surface of soil layer; 9-excavating depth; 10-central axis of pile pipe; 11-distance between the axis of the pile pipe and the soil pressure cell; 12-burying depth of the soil pressure box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the terms "first," "second," "third," "fourth," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
As shown in fig. 1, the invention provides a soil disturbance lateral pressure measuring device in a pile pipe mud entering process, which comprises the following components:
a supporting plate 7 and a fixed sleeve 4;
the soil pressure cell comprises a hollow dowel bar 6, wherein a first end of the hollow dowel bar 6 is fixedly connected with a bearing plate 7, a second end of the hollow dowel bar 6 is fixedly connected with a fixed sleeve 4, and threading holes for accommodating soil pressure cell signal wires 5 are formed in the hollow dowel bar 6 and the fixed sleeve 4;
In a preferred embodiment of the invention, the support plate 7 is a square steel plate, which is used to provide the main load-bearing capacity for the device.
In a preferred embodiment of the invention, the hollow dowel bar 6 is a prototype hollow steel pipe, and mainly has the function of providing a threading space for the soil pressure cell 2 and transmitting the stress of the soil pressure cell 2 to the bearing plate 7.
In a preferred embodiment of the present invention, the fixing sleeve 4 is a circular cup-shaped structure, and one end of the fixing sleeve connected with the second end of the hollow dowel bar 6 is provided with a threading hole to provide a protective space for the soil pressure cell.
In a preferred embodiment of the present invention, the earth pressure cell fixation plate 3 is an elongated plate-like structure that is mounted inside the fixation sleeve 4 to provide back support for the earth pressure cell 2.
In a preferred embodiment of the present invention, a first end of the hollow dowel 6 is provided with a threading hole, and the hollow dowel 6 is configured to receive the soil pressure cell signal wire 5 therethrough.
In a preferred embodiment of the present invention, the outer surface of the soil pressure cell 2 is coated with a waterproof protective layer.
In a preferred embodiment of the present invention, the waterproof protective layer is a resin protective layer.
The invention also provides an assembling method of the soil disturbance transverse pressure measuring device in the pile pipe mud entering process, which comprises the following steps:
1) welding a bearing plate 7 with a first end of a hollow dowel bar 6, and welding a fixed sleeve 4 with a second end of the hollow dowel bar 6;
2) welding the soil pressure box fixing plate 3 into the fixing sleeve 4 according to the thickness of the soil pressure box 2;
3) a soil pressure cell signal wire 5 passes through a threading hole on the fixed sleeve 4 and a threading hole at the second end of the hollow dowel bar 6 and then is electrically connected with a controller;
4) utilize gluing agent to bond soil pressure cell 2 on soil pressure cell fixed plate 3, pour into resin in the fixed sleeve 4, and the resin is parallel and level with the tip of fixed sleeve 4.
In the embodiment, the device is welded on the ground before being used, the length of the welded hollow dowel bar 6 is required to be larger than the boundary effect (the boundary effect refers to the minimum boundary which influences the pile pipe in the mud entering process, and the size of the boundary effect is generally 5 times of pipe diameter), then the soil pressure box 2 is threaded, the soil pressure box 2 is fixed, the soil pressure box 2 is filled with epoxy resin, then the device is put down to a designated position, and the pile pipe is put down to be used for soil pressure measurement.
The invention also provides a construction method of the soil disturbance transverse pressure measuring device in the pile pipe mud entering process, which comprises the following steps:
1) excavating the soil layer to the depth to be embedded, determining the distance from the central position to the soil pressure box 2, and righting the soil disturbance transverse pressure measuring device to be perpendicular to the central axis of the central position;
2) and arranging a plurality of soil body disturbance transverse pressure measurement devices according to the requirement, backfilling the soil to the next depth layer to be arranged, and continuously arranging the soil body disturbance transverse pressure devices.
In this embodiment, the pile pipe can extrude the soil body in the process of being put into the pile pipe, the soil pressure box 2 is located in a certain range of the periphery of the pile pipe, when the soil pressure and the soil body are extruded, the hollow dowel bar 6 is arranged behind the soil pressure box 2 to transmit the main acting force to the bearing plate 7, the area of the bearing plate 7 is large, and the pressure born by the soil pressure box 2 can not cause displacement or deformation. Because the position of the soil pressure cell 2 can not be changed, the measured soil body extrusion data is more accurate.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a stake pipe is gone into horizontal pressure measurement device of soil body disturbance among mud process which characterized in that, includes following part:
a bearing plate (7) and a fixed sleeve (4);
the first end of the hollow dowel bar (6) is fixedly connected with the bearing plate (7), the second end of the hollow dowel bar (6) is fixedly connected with the fixed sleeve (4), and threading holes for accommodating the soil pressure cell signal wires (5) are formed in the hollow dowel bar (6) and the fixed sleeve (4);
soil pressure cell (2) and soil pressure cell fixed plate (3), soil pressure cell (2) are fixed on soil pressure cell fixed plate (3), soil pressure cell fixed plate (3) set up in fixed sleeve (4), install the data acquisition unit in soil pressure cell (2) for measure subtend soil body pressure, and pass through soil pressure cell signal line (5) transmit to the controller.
2. The device for measuring the soil disturbance transverse pressure in the process of driving a pile pipe into mud as claimed in claim 1, wherein the fixing sleeve (4) is of a circular cup-shaped structure, and one end of the fixing sleeve connected with the second end of the hollow dowel bar (6) is provided with the threading hole.
3. The soil mass disturbance lateral pressure measuring device in the process of driving a pile pipe into mud of claim 1, characterized in that the first end of the hollow dowel bar (6) is provided with the threading hole, and the hollow dowel bar (6) is configured to accommodate the soil pressure cell signal wire (5) to penetrate through.
4. The soil body disturbance lateral pressure measuring device in the process of driving a pile pipe into mud is characterized in that the outer surface of the soil pressure box (2) is coated with a waterproof protective layer.
5. The device of claim 4, wherein the waterproof protective layer is a resin protective layer.
6. A method of assembling a device for measuring the lateral pressure of a disturbance in a soil body during the process of driving a pile pipe into the mud according to any one of claims 1 to 5, comprising the steps of:
1) welding the supporting plate (7) with a first end of the hollow dowel bar (6), and welding the fixing sleeve (4) with a second end of the hollow dowel bar (6);
2) welding the soil pressure box fixing plate (3) into the fixing sleeve (4) according to the thickness of the soil pressure box (2);
3) the soil pressure cell signal wire (5) penetrates through the threading hole in the fixed sleeve (4) and the threading hole in the second end of the hollow dowel bar (6) and then is electrically connected with the controller;
4) the soil pressure cell (2) is bonded on the soil pressure cell fixing plate (3) by using an adhesive, resin is poured into the fixing sleeve (4), and the resin is flush with the end part of the fixing sleeve (4).
7. A construction method of a soil disturbance lateral pressure measuring device in the process of entering the mud into the pile pipe according to any one of the claims 1 to 5, characterized by comprising the following steps:
1) excavating a soil layer to a depth required to be pre-buried, determining the distance from a central position to the soil pressure box (2), and righting the soil disturbance transverse pressure measuring device to be perpendicular to a central axis at the central position;
2) and arranging a plurality of soil disturbance transverse pressure measurement devices according to the requirement, backfilling soil to the next depth layer to be arranged, and continuously arranging the soil disturbance transverse pressure devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784824.2A CN113482065B (en) | 2021-07-12 | 2021-07-12 | Soil disturbance transverse pressure measuring device and method in pile pipe mud feeding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784824.2A CN113482065B (en) | 2021-07-12 | 2021-07-12 | Soil disturbance transverse pressure measuring device and method in pile pipe mud feeding process |
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| Publication Number | Publication Date |
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| CN113482065A true CN113482065A (en) | 2021-10-08 |
| CN113482065B CN113482065B (en) | 2024-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110784824.2A Active CN113482065B (en) | 2021-07-12 | 2021-07-12 | Soil disturbance transverse pressure measuring device and method in pile pipe mud feeding process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487249A (en) * | 2008-12-30 | 2009-07-22 | 中国科学院武汉岩土力学研究所 | Embedding apparatus and method for earth pressure box |
| CN207472473U (en) * | 2017-11-27 | 2018-06-08 | 山东大学 | A kind of " sandwich " formula soil pressure cell fixing device |
| CN207619965U (en) * | 2017-11-01 | 2018-07-17 | 中铁隧道集团二处有限公司 | A kind of soil pressure cell fixing device |
| CN108678036A (en) * | 2018-06-14 | 2018-10-19 | 中国建筑第八工程局有限公司 | The detecting system installation method of the lateral soil pressure of bored concrete pile |
| CN109387311A (en) * | 2017-08-02 | 2019-02-26 | 北京道冲泰科科技有限公司 | It is a kind of for measuring the on-Line Monitor Device of ground internal stress |
| CN112064635A (en) * | 2020-09-08 | 2020-12-11 | 长沙理工大学 | Anchoring structure capable of automatically feeding back stratum information and performing multiple repairs and anchoring and repairing method |
| WO2021000345A1 (en) * | 2019-07-01 | 2021-01-07 | 大连理工大学 | Horizontal continuous measuring method for soil mass parameters of soft soil site |
| CN212835321U (en) * | 2020-05-25 | 2021-03-30 | 兰州交通大学 | Settlement plate connecting rod limiting and soil pressure cell wire leading-out device |
| CN112901276A (en) * | 2021-03-11 | 2021-06-04 | 山东鲁桥建设有限公司 | Tunnel soil pressure cell burying device and using method |
| CN215211202U (en) * | 2021-07-12 | 2021-12-17 | 中国石油大学(北京) | Soil disturbance transverse pressure measuring device in pile pipe mud entering process |
-
2021
- 2021-07-12 CN CN202110784824.2A patent/CN113482065B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487249A (en) * | 2008-12-30 | 2009-07-22 | 中国科学院武汉岩土力学研究所 | Embedding apparatus and method for earth pressure box |
| CN109387311A (en) * | 2017-08-02 | 2019-02-26 | 北京道冲泰科科技有限公司 | It is a kind of for measuring the on-Line Monitor Device of ground internal stress |
| CN207619965U (en) * | 2017-11-01 | 2018-07-17 | 中铁隧道集团二处有限公司 | A kind of soil pressure cell fixing device |
| CN207472473U (en) * | 2017-11-27 | 2018-06-08 | 山东大学 | A kind of " sandwich " formula soil pressure cell fixing device |
| CN108678036A (en) * | 2018-06-14 | 2018-10-19 | 中国建筑第八工程局有限公司 | The detecting system installation method of the lateral soil pressure of bored concrete pile |
| WO2021000345A1 (en) * | 2019-07-01 | 2021-01-07 | 大连理工大学 | Horizontal continuous measuring method for soil mass parameters of soft soil site |
| CN212835321U (en) * | 2020-05-25 | 2021-03-30 | 兰州交通大学 | Settlement plate connecting rod limiting and soil pressure cell wire leading-out device |
| CN112064635A (en) * | 2020-09-08 | 2020-12-11 | 长沙理工大学 | Anchoring structure capable of automatically feeding back stratum information and performing multiple repairs and anchoring and repairing method |
| CN112901276A (en) * | 2021-03-11 | 2021-06-04 | 山东鲁桥建设有限公司 | Tunnel soil pressure cell burying device and using method |
| CN215211202U (en) * | 2021-07-12 | 2021-12-17 | 中国石油大学(北京) | Soil disturbance transverse pressure measuring device in pile pipe mud entering process |
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| CN113482065B (en) | 2024-07-23 |
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