CN107794956B - Detachable field soil plug height dynamic measurement device and method - Google Patents
Detachable field soil plug height dynamic measurement device and method Download PDFInfo
- Publication number
- CN107794956B CN107794956B CN201711041739.7A CN201711041739A CN107794956B CN 107794956 B CN107794956 B CN 107794956B CN 201711041739 A CN201711041739 A CN 201711041739A CN 107794956 B CN107794956 B CN 107794956B
- Authority
- CN
- China
- Prior art keywords
- wire wheel
- soil plug
- pile
- soil
- detachable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a detachable on-site soil plug height dynamic measuring device which comprises a straight cylinder and a flat plate fixed at the lower end of the straight cylinder, wherein the straight cylinder comprises a side wall and a cavity, a reserved hole is formed in the flat plate, a through hole is formed in the side wall, a first wire wheel and a second wire wheel which rotate around the same axis are arranged in the cavity, one end of a first wire wheel shaft is connected with the first wire wheel, the other end of the first wire wheel shaft is connected with a first rotating driver, one end of a second wire wheel shaft is connected with the second wire wheel, the other end of the second wire wheel shaft is connected with a second rotating driver, a code scale is wound on the first wire wheel, one end of the code scale penetrates through the through hole and is connected with a first heavy block, a rope is wound on the second wire wheel, one end of the rope is connected with a second heavy block, or one end of the rope penetrates through the reserved hole and is connected with the second heavy block, the weight of the second heavy block is larger than that of the first heavy block, and the first wire wheel and the second wire wheel can be mutually butted and synchronously rotate. Has the advantages that: has wide application and simple use.
Description
Technical Field
The invention relates to the technical field of ocean geotechnical engineering and pile foundation engineering, in particular to a detachable on-site soil plug height dynamic measuring device and method.
Background
During the driving process of the open pile, part of soil body at the pile end is discharged out of the pile and extruded to the periphery, and part of soil body enters the pile to form a soil plug. In the piling process, the states of the soil plug are different due to different factors such as pile diameter, soil property, pile forming mode, penetration depth and the like, and the states comprise three states of complete blocking, partial blocking and complete non-blocking.
A large amount of test and field actual measurement data at home and abroad show that the existence of the soil plug has great influence on the driving capability of the pile, the vertical bearing capacity of the pile and the settlement of the pile; in addition, the transition of different soil plug states during the piling process affects the piling mode and the selection of the foundation pile design. Therefore, it is necessary to study the state of the soil plug during the piling process.
Indexes commonly used in engineering for describing the soil plug state comprise a soil Plug Length Ratio (PLR) and an soil plug increment ratio (IFR); a great deal of engineering experience indicates that the soil plug increment ratio better describes the state of development of the soil plug than the soil plug length ratio; however, it is often difficult to accurately determine the soil plug increment ratio during field testing. At present, related soil plug increment ratio testing methods are proposed, but the methods are mostly based on model tests, pipe piles need to be modified, the possibility of pile splicing and other pile driving accidents existing due to different pile diameters and different pile forming modes is not considered, and the method is difficult to be widely applied to actual engineering.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a detachable device and a method for dynamically measuring the height of a soil plug in a field, which are widely applicable and simple to use.
The embodiment of the invention provides a detachable on-site dynamic soil plug height measuring device which comprises a straight cylinder and a flat plate fixed at the lower end of the straight cylinder, wherein the straight cylinder comprises a side wall and a cavity surrounded by the side wall, a reserved hole communicated with the outside and the cavity is formed in the flat plate, a through hole communicated with the outside and the cavity is formed in the side wall, a first wire wheel and a second wire wheel rotating around the same axis are arranged in the cavity, one end of a first wire wheel shaft is connected with the first wire wheel, the other end of the first wire wheel shaft is connected with a first rotating driver, one end of a second wire wheel shaft is connected with the second wire wheel, the other end of the second wire wheel shaft is connected with a second rotating driver, a code scale is wound on the first wire wheel, one end of the code scale penetrates through the through hole to be connected with a first weight, a rope is wound on the second wire wheel, one end of the rope is connected with a second weight block, the second weight is larger than the weight of the first weight, and the first wire wheel and the second wire wheel can rotate synchronously in butt joint with the second weight.
Further, the first line wheel is to the protruding butt joint portion that is equipped with in direction at second line wheel place, be equipped with the spline in the butt joint portion, second line wheel is equipped with the recess along its axis direction indent, recess edge is equipped with the keyway, the recess be used for with butt joint portion butt joint, the keyway be used for with the spline meshing.
Furthermore, the first rotary driver and the second rotary driver are symmetrically positioned at the outer side of the side wall, two limiting holes are formed in the side wall, and the first reel shaft and the second reel shaft can respectively rotatably penetrate through the two limiting holes to be connected with the first rotary driver and the second rotary driver.
Furthermore, the first spool shaft and the second spool shaft are rotatably limited in the corresponding limiting holes through axial locking devices respectively, and after the axial locking devices are loosened, the first spool and the second spool shaft can be connected or separated through axial movement of the first spool shaft and/or the second spool shaft.
Further, the first rotation driver and the second rotation driver are a first handle and a second handle, respectively.
Furthermore, a guide wheel support is arranged on the outer side face of the side wall corresponding to the through hole, a guide wheel is mounted on the guide wheel support, and the guide wheel is located between the through hole and the first weight block to support the code ruler.
Further, the straight cylinder is a steel pipe, the flat plate is a steel plate, and the rope is a steel cable.
The embodiment of the invention provides a method for dynamically measuring the height of a field soil plug, which utilizes the detachable device for dynamically measuring the height of the field soil plug and comprises the following steps:
step 1: ensuring the first wire wheel and the second wire wheel to be separated, enabling the code scale to pull the first weight to be at the initial position, and recording the scale h on the code scale at the moment 0 The second weight is made to reach the highest position;
and 2, step: the detachable field soil plug height dynamic measuring device is installed on the open pile, the second block is placed downwards to be just in contact with soil in the open pile, and the rope is in a straightening state;
and 3, step 3: the first wire wheel is connected with the second wire wheel in a matched mode, external load is transmitted to the open pile through the detachable field soil plug height dynamic measuring device, or the external load is directly applied to the open pile to carry out driving operation of the open pile, and when the depth of the open pile penetrating into the soil plug reaches H, the scale H on the code scale is read 1 And the increment of the soil plug in the open pile is h, h = | h 1 -h 0 | obtaining the increment ratio of the soil plug, h = | h 1 -h 0 | obtaining the soil plug increment ratio: x100%.
Further, step 4: dividing the process of the open pile into a plurality of stages, wherein the total depth of the open pile into the soil plug is H in each stage, and reading the scale H on the code scale when each stage begins n-1 At the end of each stage, reading the scale h on the code scale n N is a natural number greater than 0, and when the open pile is driven to a specified elevation position or the soil plug increment ratio = |, h n -h n-1 When the total number of the processes of the three continuous penetration is 0 and n is a natural number larger than zero, the detachable field soil plug height dynamic measuring device is taken down, and then the rest engineering is carried out according to the pile foundation engineering specification.
Further, in the process of step 4, if the interior of the open pile is already filled with the soil plug or is about to be filled with the soil plug and pile splicing is needed, the detachable field soil plug height dynamic measuring device is taken down, and after pile splicing is completed, the steps 1 to 4 are continued until the open pile is driven into a specified elevation position or the soil plug increment ratio is constantly 0 in three continuous injection processes.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: (1) When the detachable field soil plug height dynamic measuring device is used for measuring the soil plug increment ratio of the open pile, the shape and the structure of the open pile do not need to be changed, and the detachable field soil plug height dynamic measuring device can be rapidly detached and is simple and convenient to operate when pile splicing or other pile driving accidents exist. (2) Through setting up the length of side of flat board with the diameter of preformed hole, can carry out the soil stopper increment ratio measurement of opening stake in certain diameter range, and need not be to different devices of different stake footpaths design, save the spending. (3) The first reel and the second reel are separated, so that the positions of the first weight and the second weight can be independently adjusted, and the condition that the first weight and/or the second weight reach the limit position or the measurement is inconvenient can be well handled. (4) Simple structure, convenient operation can be applied to in the actual engineering well.
Drawings
FIG. 1 is a schematic view of a detachable dynamic field soil plug height measuring device of the present invention in use;
FIG. 2 is a perspective view of the detachable dynamic field soil plug height measuring device of the present invention;
FIG. 3 is a cross-sectional top view of FIG. 2;
fig. 4 a is a cross-sectional view of the second reel in fig. 2, fig. b is a cross-sectional view of the first reel, and the directions of the cross-sectional views in fig. a and b are orthogonal to each other.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a detachable dynamic field soil plug height measuring device 2, which is used for dynamically measuring the soil plug height in a field, and mainly includes: a straight cylinder 10 and a flat plate 9 fixed at the lower end of the straight cylinder 10.
Referring to fig. 1, 2 and 3, the straight tube 10 includes a side wall and a cavity surrounded by the side wall, the side wall is provided with a through hole 101 and two limiting holes communicating with the outside and the cavity, the two limiting holes are symmetrically arranged, preferably, the through hole 101 is located on a perpendicular bisector of a straight line where the two limiting holes are located, the cavity is provided with a first reel 17 and a second reel 18 rotating around the same axis, one end of the first reel 15 is connected with the first reel 17, the other end of the first reel passes through the corresponding limiting hole and is connected with the first rotary driver 14, one end of the second reel 16 is connected with the second reel 18, and the other end of the second reel passes through the corresponding limiting hole and is connected with the second rotary driver 13, that is, the first rotary driver 14 and the second rotary driver 13 are located outside the side wall and are in a visible state, in other embodiments, the side wall is provided with only the through hole 101, and the first rotary driver 14 and the second rotary driver 13 can be remotely controlled or remotely monitored by a connecting line or a wireless network, and the first rotary driver 14 and the second rotary driver 13 are in a hidden state.
Referring to fig. 1 and 2, a guide wheel bracket 7 is disposed on the side wall corresponding to the position of the through hole 101, a guide wheel 8 is mounted on the guide wheel bracket 7, and the guide wheel 8 can rotate relative to the guide wheel bracket 7. The first wire wheel 17 is wound with a code ruler 11, one end of the code ruler 11 penetrates through the through hole 101 to be connected with a first weight 5, and the guide wheel 8 is located between the through hole 101 and the first weight 5 and used for supporting the code ruler 11, so that the code ruler 11 can move upwards or downwards relative to the guide wheel 8.
Referring to fig. 1, 2 and 3, a preformed hole 19 for communicating the outside with the cavity is formed in the flat plate 9, a rope 12 is wound on the second pulley 18, one end of the rope 12 is connected to the second weight 6, and the second weight 6 can pass through the preformed hole 19, so that the second weight 6 can be stored in the cavity, in other embodiments, one end of the rope 12 passes through the preformed hole 19 to be connected to the second weight 6, and the second weight 6 can only be located outside the cavity.
Referring to fig. 2, 3 and 4, the second weight 6 has a weight greater than that of the first weight 5, so as to prevent the first weight 5 from pulling the second weight 6 off the ground to lift it and suspend it. The first pulley 17 and the second pulley 18 can be butted with each other to synchronously rotate, specifically, a butting portion 171 is convexly arranged in the direction of the first pulley 17 toward the second pulley 18, a spline 172 is arranged on the butting portion 171, a groove 181 is concavely arranged on the second pulley 18 along the axis direction, a key slot 182 is arranged at the edge of the groove 181, the groove 181 is used for butting with the butting portion 171, and the key slot 182 is used for meshing with the spline 172; the first reel shaft 15 and the second reel shaft 16 are rotatably limited to the corresponding limiting holes through axial locking devices respectively, and after the axial locking devices are loosened, the first reel 17 and the second reel 18 can be butted or separated through axial movement of the first reel shaft 15 and/or the second reel shaft 16. When the first and second pulleys 17 and 18 are coupled, the key groove 182 is engaged with the spline 172, so that the first and second pulleys 17 and 172 can rotate synchronously, and when the first and second pulleys 17 and 18 are decoupled, the spline 172 is withdrawn from the key groove 182, so that the first and second pulleys 17 and 18 move independently under the driving of the corresponding first and second rotary drivers 14 and 13. Preferably, the first and second rotary drives 14, 13 are a first and second hand lever, respectively.
In order to increase the overall bearing capacity of the detachable on-site soil plug height dynamic measurement device 2, the straight cylinder 10 is a steel pipe, the flat plate 9 is a steel plate, and the rope 12 is a steel rope.
When the detachable field soil plug height dynamic measurement device 2 is used for implementing field soil plug height dynamic measurement, the method comprises the following steps:
step 1: ensuring the first reel 17 and the second reel 18 to be separated from each other, so that the combination ruler 11 pulls the first weight 5 to be at the initial position, and recording the scale h on the combination ruler 11 at the moment 0 The second weight 6 is brought to its highest position.
Specifically, before use, if the first spool 17 is not separated from the second spool 18, the axial locking device is released, so that the first spool shaft 15 and/or the second spool shaft 16 is/are axially and outwardly drawn out, and the first spool 17 and the second spool 18 are driven to move away from each other, so that the spline 172 is drawn out of the keyway 182, thereby completing separation.
And locking the axial locking device to ensure that the first reel shaft 15 and the second reel shaft 16 can only rotate relative to the limiting hole. Rotating the first handle causes the first reel 1 to be rotated via the first reel axle 157 rotates to make the code scale 11 pull the first weight 5 to be at a preset initial position corresponding to the initial position, and the scale on the code scale is h 0 . Turning the second handle turns the second reel 18 via the second reel shaft 16, bringing the second mass 6 to its uppermost position, i.e. to be retracted into the cavity.
Step 2: and (3) installing the detachable field soil plug height dynamic measuring device 2 on the open pile 3, lowering the second heavy block 6 to just contact with soil in the open pile 3, and straightening the rope 12.
Specifically, the second handle is rotated to rotate the second reel 18 in the opposite direction via the second reel shaft 16, thereby releasing the second weight 6 downward until the second weight 6 comes into contact with the soil in the open pile 3, and at this time, the rope pulling the second weight 6 is in a natural straightened state.
And step 3: the first wire wheel 17 is butted with the second wire wheel 18, external load 1 is transmitted to the open pile 3 through the detachable field soil plug height dynamic measuring device 2, or the external load 1 is directly applied to the open pile 3, the driving operation of the open pile 3 is carried out, and when the depth of the open pile 3 penetrating into the soil plug reaches H, the scale H on the code scale is read 1 The increment of the soil plug in the open pile 3 is h, h = |, h 1 -h 0 | obtaining the soil plug increment ratio: x 100%.
Specifically, the axial locking device is released, so that the first spool shaft 15 and/or the second spool shaft 16 is pushed inward along the axial direction thereof, and the first spool 17 and the second spool 18 are driven to approach each other, so that the spline 172 extends into the key groove 182 and is engaged with the key groove 182, thereby completing the butt joint. At this time, the first reel 17 and the second reel 18 are in a linked state and move synchronously, and the first weight 5 and the second weight 6 are connected to each other through the first reel 17 and the second reel 18 which are in butt joint. Since the second weight 6 is heavier than the first weight 5, the falling force of the first weight 5 on the second weight 6 is pulledThen, keep the scale h 0 。
When a driving-in pile forming mode is adopted, external load 1 can be transmitted to the open pile 3 through the detachable field soil plug height dynamic measuring device 2; when the press-in pile forming method is adopted, an external load 1 can directly act on the open pile 3.
The open pile 3 sinks downwards to penetrate into the soil layer with a certain depth under the indirect acting force or the direct acting force of the external load 1, because the pile is an open pile, as the open pile 3 drills into the soil layer, soil in the soil layer can then drill upwards into the open pile 3 from the bottom end of the open pile 3, so that the height of a soil plug in the open pile 3 is increased, namely the increase of the soil plug height is the increase of the soil plug amount, as the soil plug amount is increased, the second weight 6 which is previously contacted with the soil in the open pile 3 can be upwards jacked up by the upwards-growing soil plug, the rope 12 connected with the second weight 6 is immediately in a pre-loose state, the pulling force of the second weight 6 on the first weight 5 is reduced, the first weight 5 moves downwards under the action of the self gravity, the first reel 15 and the second reel 16 which are butted are driven to rotate, and the rope 12 is rolled up, so that the rope 12 is always in a tensile state. Thus, the soil plug in the open pile 3 increases in height to be equal to the height of the first weight 5 which is lowered by the downward vertical movement.
After one or more times of piling, when the depth of the soil plug in the open pile 3 reaches H, reading the scale on the code scale 11 corresponding to the first weight 5 at the moment to be H 1 The variable of the height of said first weight 5 is | h 1 -h 0 | so the increment of the soil plug in the open pile 3 is h, h = |, h 1 -h 0 ∣。
And 4, step 4: dividing the process of the open pile 3 penetrating into the soil plug into a plurality of stages, wherein the total depth of the open pile 3 penetrating into the soil plug is H in each stage, and reading the scale H on the code scale when each stage begins n-1 At the end of each stage, the scale h on the code scale 11 is read n N is a natural number greater than 0, and when the open pile is driven to a specified elevation position or the soil plug increment ratio = |, h n -h n-1 When the continuous penetration process of | H is 0, the detachable on-site soil plug height dynamic measuring device 2 is taken down, and then the rest project is carried out according to the pile foundation project specification.
In the process of step 4, if the interior of the open pile 3 is filled with soil plugs or is about to be filled with soil plugs and pile splicing is needed, the detachable field soil plug height dynamic measuring device 2 is taken down, after pile splicing is completed, the steps 1 to 4 are continued, and the open pile is driven to a specified elevation position or when the soil plug increment ratio is constant to 0. As shown in fig. 1, two adjacent open piles 3 are connected by welding seams 4.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: (1) When the detachable field soil plug height dynamic measuring device 2 is used for measuring the soil plug increment ratio of the open pile 3, the shape and the structure of the open pile 3 do not need to be changed, and when pile splicing or other pile driving accidents exist, the detachable field soil plug height dynamic measuring device can be rapidly detached and is simple and convenient to operate. (2) By setting the side length of the flat plate 9 and the diameter of the preformed hole 19, the soil plug increment ratio of the open pile in a certain diameter range can be measured, different devices are not required to be designed for different pile diameters, and expenditure is saved. (3) By separating the first and second wire wheels 17, 18, an independent adjustment of the position of the first and second weights 5, 6 is achieved, which is a good way of dealing with extreme positions of the first and/or second weights 5, 6 or measurement inconveniences. (4) Simple structure, convenient operation can be applied to in the actual engineering well.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a high dynamic measurement device of on-spot soil plug of detachable, its characterized in that: the straight drum comprises a straight drum and a flat plate fixed at the lower end of the straight drum, the straight drum comprises a side wall and a cavity surrounded by the side wall, a reserved hole communicated with the outside and the cavity is formed in the flat plate, a through hole communicated with the outside and the cavity is formed in the side wall, a first wire wheel and a second wire wheel rotating around the same axis are arranged in the cavity, one end of a first wire wheel shaft is connected with the first wire wheel, the other end of the first wire wheel shaft is connected with a first rotating driver, one end of a second wire wheel shaft is connected with the second wire wheel, the other end of the second wire wheel shaft is connected with a second rotating driver, a code ruler is wound on the first wire wheel, one end of the code ruler penetrates through the through hole to be connected with a first heavy block, a rope is wound on the second wire wheel, one end of the rope is connected with a second heavy block, the second heavy block can penetrate through the reserved hole, one end of the rope penetrates through the reserved hole to be connected with the second heavy block, the weight of the second heavy block is larger than the heavy block of the first wire wheel and the second wire wheel and the first wire wheel and the second wire wheel can be butted with the second heavy block to rotate synchronously;
the first rotary driver and the second rotary driver are symmetrically positioned at the outer side of the side wall, two limiting holes are formed in the side wall, and the first reel shaft and the second reel shaft can respectively rotatably penetrate through the two limiting holes to be connected with the first rotary driver and the second rotary driver;
the first reel shaft and the second reel shaft are rotatably limited in the corresponding limiting holes through axial locking devices respectively, and after the axial locking devices are loosened, the first reel and the second reel shaft can be connected or separated through axial movement of the first reel shaft and/or the second reel shaft;
the first line wheel is to the protruding butt joint portion that is equipped with in direction at second line wheel place, be equipped with the spline in the butt joint portion, second line wheel is equipped with the recess along its axis direction indent, groove edge is equipped with the keyway, the recess be used for with butt joint portion butt joint, the keyway be used for with the spline meshing.
2. A demountable on-site soil plug height dynamic measurement apparatus according to claim 1, wherein: the first rotary driver and the second rotary driver are respectively a first rocking handle and a second rocking handle.
3. A demountable on-site soil plug height dynamic measurement apparatus according to claim 1, wherein: the guide wheel support is arranged on the outer side face of the side wall corresponding to the through hole, a guide wheel is mounted on the guide wheel support, and the guide wheel is located between the through hole and the first weight block to support the code ruler.
4. A demountable in-situ soil plug height dynamic measurement apparatus according to claim 1, wherein: the straight cylinder is a steel pipe, the flat plate is a steel plate, and the rope is a steel cable.
5. A method for dynamically measuring the height of an on-site soil plug is characterized by comprising the following steps: the detachable dynamic measurement device for the soil plug height on the site using any one of claims 1 to 4, comprising the steps of:
step 1: ensuring that the first wire wheel is separated from the second wire wheel, enabling the code scale to pull the first weight block to be at the initial position, recording the scale h0 on the code scale at the moment, and enabling the second weight block to reach the highest position;
step 2: the detachable field soil plug height dynamic measuring device is installed on the open pile, the second block is placed downwards to be just in contact with soil in the open pile, and the rope is in a straightening state;
and step 3: connecting the first wire wheel with the second wire wheel, transmitting an external load to the open pile through the detachable field soil plug height dynamic measuring device, or directly applying the external load on the open pile to drive the open pile, reading a scale H1 on the code scale when the depth of the open pile penetrating into the soil plug reaches H, wherein the soil plug increment in the open pile is H, and H = | -H1-H0 |, so as to obtain a soil plug increment ratio: x 100%.
6. The method of dynamic in-situ soil plug height measurement according to claim 5, wherein: and 4, step 4: dividing the process of the opening pile into a plurality of stages, wherein the total depth of the opening pile into the soil plug is H in each stage, reading the scales hn-1 on the code scale when each stage begins, reading the scales hn on the code scale when each stage ends, wherein n is a natural number greater than 0, taking down the detachable field soil plug height dynamic measuring device when the opening pile is driven into a specified elevation position or the soil plug increment ratio = | _ hn-hn-1 |/H is constantly 0 in three continuous penetration processes, and then carrying out the rest engineering pile foundation according to the engineering specification.
7. The method of dynamic in-situ soil plug height measurement according to claim 6, wherein: in the process of step 4, if the interior of the open pile is filled with soil plugs or is about to be filled with soil plugs and pile splicing is needed, the detachable field soil plug height dynamic measuring device is taken down, and after pile splicing is completed, the steps 1 to 4 are continued until the open pile is driven to a specified elevation position or the soil plug increment ratio is constantly 0 in three continuous injection processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041739.7A CN107794956B (en) | 2017-10-31 | 2017-10-31 | Detachable field soil plug height dynamic measurement device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041739.7A CN107794956B (en) | 2017-10-31 | 2017-10-31 | Detachable field soil plug height dynamic measurement device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107794956A CN107794956A (en) | 2018-03-13 |
| CN107794956B true CN107794956B (en) | 2023-02-28 |
Family
ID=61548297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711041739.7A Active CN107794956B (en) | 2017-10-31 | 2017-10-31 | Detachable field soil plug height dynamic measurement device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107794956B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413160A (en) * | 1972-12-20 | 1975-11-05 | Shell Int Research | Method and means for load testing openended piles penetrating the soil |
| CN201935686U (en) * | 2011-01-27 | 2011-08-17 | 王红卫 | Relative-settlement observation device for large building foundation |
| CN102587423A (en) * | 2012-03-02 | 2012-07-18 | 中国石油大学(华东) | Depth testing device for driven type soil plugs of steel pipe piles of ocean platforms |
| CN103061363A (en) * | 2013-01-28 | 2013-04-24 | 河海大学 | Device for monitoring soil plug lifting height of prestressed pipe pile in hydrostatic process |
| CN105300248A (en) * | 2015-10-27 | 2016-02-03 | 衡阳纺织机械有限公司 | Measurement device of hole depth of spring tube and application method thereof |
| JP2017025570A (en) * | 2015-07-22 | 2017-02-02 | 株式会社技研製作所 | Height measurement device and method, and closed state evaluation device and method |
| CN207597453U (en) * | 2017-10-31 | 2018-07-10 | 中国地质大学（武汉） | A kind of dismountable scene soil fills in highly dynamic measuring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245558C (en) * | 2003-11-27 | 2006-03-15 | 黄强 | Pipe pile construction method and pile tip bearing capacity reinforcement equipment |
-
2017
- 2017-10-31 CN CN201711041739.7A patent/CN107794956B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1413160A (en) * | 1972-12-20 | 1975-11-05 | Shell Int Research | Method and means for load testing openended piles penetrating the soil |
| CN201935686U (en) * | 2011-01-27 | 2011-08-17 | 王红卫 | Relative-settlement observation device for large building foundation |
| CN102587423A (en) * | 2012-03-02 | 2012-07-18 | 中国石油大学(华东) | Depth testing device for driven type soil plugs of steel pipe piles of ocean platforms |
| CN103061363A (en) * | 2013-01-28 | 2013-04-24 | 河海大学 | Device for monitoring soil plug lifting height of prestressed pipe pile in hydrostatic process |
| JP2017025570A (en) * | 2015-07-22 | 2017-02-02 | 株式会社技研製作所 | Height measurement device and method, and closed state evaluation device and method |
| CN105300248A (en) * | 2015-10-27 | 2016-02-03 | 衡阳纺织机械有限公司 | Measurement device of hole depth of spring tube and application method thereof |
| CN207597453U (en) * | 2017-10-31 | 2018-07-10 | 中国地质大学（武汉） | A kind of dismountable scene soil fills in highly dynamic measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 大直径钢管桩土塞效应的判断和沉桩过程分析;刘润等;《海洋工程》;20050530(第02期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107794956A (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5908268A (en) | Method of making a hole for a foundation pile | |
| US8631627B2 (en) | Helical pole support bracket and method for supporting a pole | |
| CN108612134B (en) | Device and method for static drilling rooted pile load transfer mechanism model test | |
| WO2022021634A1 (en) | Method for removing semi-invasive pre-stressed anchor cable in supporting pile by rotary drilling rig | |
| KR101488290B1 (en) | Spud apparatus for jack-up rig | |
| CN107794956B (en) | Detachable field soil plug height dynamic measurement device and method | |
| CN114457803A (en) | Civil engineering pile foundation fixing structure and implementation method | |
| CN113251975B (en) | Pile hole sediment thickness detection device and detection method | |
| CN110106924B (en) | Pile soil plug height monitoring device and method in pile sinking process | |
| JP2007169988A (en) | Bearing pile press-in method and load testing method | |
| JPS63156110A (en) | Foundation examining method | |
| CN210031928U (en) | Prestressed concrete hollow pile length and pile extension quality detection device | |
| CN211121136U (en) | Pile foundation steel reinforcement cage length auxiliary detection device | |
| JP2002081064A (en) | Pile driving method and device | |
| CN207597453U (en) | A kind of dismountable scene soil fills in highly dynamic measuring device | |
| CN114002076A (en) | Indoor test simulation device and method for push bench construction | |
| CN210315693U (en) | Pile sinking process pipe pile soil plug height monitoring device | |
| CN209958412U (en) | Pile foundation sediment thickness detection instrument | |
| EP3351688B1 (en) | Apparatus and method for stabilizing a foundation of a building | |
| CN111024436B (en) | Coring device and method for cement mixing pile test detection | |
| CN220888767U (en) | Quick detection device for bonding strength between tubular pile filling core and tubular pile side wall | |
| KR102563963B1 (en) | Corrugated drilling device and ground reinforcement method using the same | |
| KR101516215B1 (en) | Coring system including tensiometer and Method of deciding accurate coring using the same | |
| CN114134949B (en) | Test device and method for testing negative friction resistance parameters of pile foundation in high fill of reservoir shore | |
| CN111677022B (en) | Sediment thickness detection device before bored concrete pile formation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |