CN114575392A - Deformation early warning observation device for large sandbag cofferdam - Google Patents
Deformation early warning observation device for large sandbag cofferdam Download PDFInfo
- Publication number
- CN114575392A CN114575392A CN202210032762.4A CN202210032762A CN114575392A CN 114575392 A CN114575392 A CN 114575392A CN 202210032762 A CN202210032762 A CN 202210032762A CN 114575392 A CN114575392 A CN 114575392A
- Authority
- CN
- China
- Prior art keywords
- detection line
- line
- sandbag
- pile
- spring
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 112
- 238000006073 displacement reaction Methods 0.000 claims abstract description 46
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 239000004746 geotextile Substances 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 2
- 239000004576 sand Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
- E02D2300/0034—Steel; Iron in wire form
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0054—Including fibers made from plastic
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0054—Including fibers made from plastic
- E02D2300/0057—PE
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0068—Including fibers made from carbon
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0085—Geotextiles
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)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
A deformation early warning observation device for a large sandbag cofferdam comprises a first fixed pile, a second fixed pile and a detection line, wherein the detection line penetrates through the bottom of the bottommost sandbag in the cofferdam in a stretched state, one end of the detection line is fixed on the first fixed pile, the other end of the detection line is movably connected to the second fixed pile, or two ends of the detection line are respectively movably connected to the first fixed pile and the second fixed pile, and the deformation of the sandbag is calculated and an early warning is given by detecting the moving distance of the two ends of the detection line relative to the first fixed pile and the second fixed pile; the detection line is movably connected to the first fixing pile or the second fixing pile through a displacement monitoring assembly or a tape measure, and the displacement monitoring assembly comprises a pulley, a connecting line and a spring. The deformation of the filled sandbag is monitored by detecting the displacement of the detection line, so that the monitoring and early warning effects are achieved, the influence on the geotextile and the whole cofferdam is avoided, the structure is simple, and the implementation is easy.
Description
Technical Field
The invention relates to the technical field of geotechnical construction, in particular to a deformation early warning observation device for a large sandbag cofferdam.
Background
The large sandbag cofferdam is generally formed by piling and piling geotextile filling bags, the advantages of isolation and drainage of geotextile, strong adaptability to soft soil foundation, good integral continuity, high construction speed, low manufacturing cost and the like can be fully utilized, but the sandbag is easy to deform under the action of gravity and the like, and particularly the deformation is more serious due to foundation settlement when the cofferdam is constructed on a loose foundation, such as the thick silt soft soil layer of the river, the sea and the like, the bearing capacity is low, and the foundation is easier to settle; when the foundation is loaded rapidly, the foundation settlement is uneven, and the geotextile or sandbag is tensioned and deformed more easily. The sand bags or the geotextile deform mainly by vertical settlement, the stress of the sand bags or the geotextile at the lower layer is increased continuously from top to bottom, the stress deformation of the sand bags or the geotextile at the lower layer is particularly obvious, and when the tension exceeds a certain degree, the cofferdam is broken even by snapping to cause the defects of the cofferdam and even collapse, so that the construction quality and safety are influenced, the deformation monitoring of the geotextile cofferdam is particularly important, and the purpose of preventing and early warning is achieved through monitoring. And some existing methods often damage the surface of the geotextile, reduce the stability and influence the quality of the cofferdam.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the large sandbag cofferdam deformation early warning observation device which is simple in structure and convenient to implement and can monitor the deformation of the geotextile in real time.
The invention is realized by the following technical scheme:
the utility model provides a big sand bag cofferdam deformation early warning observation device, includes first spud pile, second spud pile and detection line, first spud pile and second spud pile set up respectively at the both ends of the cofferdam that is piled up by multilayer geotextile sand bag, after the detection line is the bottom that the state level of stretching out passed bottom sand bag in the cofferdam, one end is fixed on first spud pile, and other end movably connects on the second spud pile, calculates the deflection of the sand bag that the detection line level passed through the distance that detects the detection line and remove for the second spud pile, when the deflection exceeded the predetermined value, gave early warning information. The preset value is calculated and designed according to the deformation performance of the sandbag material, the geotextile is mainly made of synthetic fiber materials such as polypropylene, olefin, terylene, nylon and acrylonitrile fiber, the tensile strength, the tensile rate, the tear strength and the like of different materials are different, and the processing method can influence the performances. For example, when the deformation amount exceeds a critical value (such as 2%, 5% or 10%) of the total length of the sandbag respectively, a corresponding level of alarm information is given respectively. Or the detection line adopts a form that two ends are movably connected, namely the detection line penetrates through the bottom of the bottommost sandbag in the cofferdam in a stretched straight state, the two ends of the detection line are movably connected to the first fixing pile and the second fixing pile respectively, the total displacement of the detection line is obtained by the movement distance of the two ends of the detection line relative to the first fixing pile and the second fixing pile respectively, the sum of the movement distances of the two ends is the total displacement of the detection line, the deformation of the two sandbags penetrated by the detection line is calculated by the total displacement of the detection line, the total displacement of the detection line is the total deformation of the sandbag, and when the deformation exceeds a preset value, early warning information is given.
Further, the detection line passes through displacement monitoring subassembly movably to be connected on the second spud pile, the displacement monitoring subassembly includes pulley, connecting wire and spring, the pulley sets up on the second spud pile, the one end of spring is fixed, the other end with the connecting wire is connected, connecting wire one end and spring coupling walk around behind the pulley, the other end with the detection line links to each other, monitors the displacement of the end of detection line for the second spud pile through the elongation that detects the spring to detect the deflection of sand bag.
Further, when the end of the detection line and the first fixing pile are movably connected, the first fixing pile is movably connected with the detection line through a displacement monitoring assembly, the displacement monitoring assembly comprises a pulley, a connecting line and a spring, the pulley is arranged on the first fixing pile, one end of the spring is fixed, the other end of the spring is connected with the connecting line, one end of the connecting line is connected with the spring, the other end of the connecting line is connected with the detection line after the pulley is wound, and the displacement of the end of the detection line relative to the first fixing pile is monitored through the elongation of the detection spring.
Further, the displacement monitoring subassembly still includes scale mark or scale, scale mark or scale set up in on the second spud pile for detect the elongation of spring.
Further, the connecting line is a steel wire rope.
Furthermore, one end of the detection line is movably connected to the second fixed pile through a tape measure, or two ends of the detection line are respectively movably connected to the first fixed pile and the second fixed pile through tape measures; the measuring tape comprises a measuring tape and a measuring spring which are connected with each other, the measuring tape is fixed on the first fixing pile and the second fixing pile, the end of the detection line is connected with the free end of the measuring tape, and the displacement of the end of the detection line is measured by the extension amount of the measuring tape.
Furthermore, the detection line is made of a flexible material which is not easy to stretch and deform, is a flexible line, can bend along with the deformation of the sandbag, is not easy to stretch and deform, and is not easy to influence the real reflection of the detection line on the deformation of the sandbag due to the stress elongation and deformation.
Further, the detection line is an ultrahigh molecular weight polyethylene fiber line, a carbon plastic line or a steel wire line.
Furthermore, the outside of the part of the detection line, which is positioned at the bottom of the sandbag, is provided with a silica gel sleeve, and the outside of the silica gel sleeve is distributed with fiber hairs, which can be inserted into the sandbag, so that the contact area is increased, and the induction sensitivity is improved.
Furthermore, the detection line is coated with a sponge layer outside the part, located at the bottom of the sandbag, so that the effect of the sandbag on the detection line is increased, and the sensitivity of the detection line on the deformation of the sandbag is improved.
According to the invention, the detection line is embedded at the bottom of the sandbag or the geogrid, the deformation of the filled sandbag is monitored by detecting the displacement of the detection line, and when the displacement reaches a preset value, the deformation of the sandbag also reaches the early warning degree, corresponding measures are required to be taken, so that the adverse effect of deformation on the quality of the cofferdam is avoided, and the detection and monitoring can not affect the quality of the geotextile and the whole cofferdam; the displacement of the detection line can be quantitatively detected through components such as pulleys and springs or the existing measuring tape, and the detection line is simple in structure and easy to implement; the fiber wool is arranged on the detection line, so that the contact area between the detection line and the geotextile is increased, the effect between the geotextile and the detection line is enhanced, the deformation of the geotextile can be sensitively reflected to the detection line, and the detection sensitivity is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is another schematic structural diagram according to an embodiment of the present invention.
Fig. 3 is another schematic structural diagram according to an embodiment of the present invention.
Fig. 4 is another schematic structural diagram according to an embodiment of the present invention.
Fig. 5 is an enlarged view of a structure at a in fig. 1.
Reference numerals: 1-sandbag; 2-detection line; 3-a first spud pile; 4-a second spud pile; 5-a pulley; 6-a spring; 7-connecting lines; 8-scale mark; 9-measuring tape.
Detailed Description
A deformation early warning observation device for a large sandbag cofferdam is shown in figure 1 and comprises first fixing piles 3, second fixing piles 4 and a detection line 2, wherein the first fixing piles 3 and the second fixing piles 4 are respectively arranged at two ends of a cofferdam formed by stacking a plurality of layers of geotextile sandbags 1, the detection line 2 horizontally penetrates through the bottom of the bottommost sandbag 1 in the cofferdam in a stretched state, one end of the detection line is fixed on the first fixing piles 3, the other end of the detection line is movably connected onto the second fixing piles 4, the deformation amount of the sandbag 1 penetrated by the detection line 2 is calculated by detecting the movement distance of the detection line 2 relative to the second fixing piles 4, and when the deformation amount exceeds a preset value, early warning information is given. The preset value is calculated and designed according to the deformation performance of the sandbag material, the geotextile is mainly made of synthetic fiber materials such as polypropylene, olefin, terylene, nylon and acrylonitrile fiber, the tensile strength, the tensile rate, the tear strength and the like of different materials are different, and the processing method can influence the performances. For example, when the deformation amount exceeds a critical value (such as 2%, 5% or 10%) of the total length of the sandbag respectively, a corresponding level of alarm information is given respectively.
The detection line 2 is fixed at one end and movable at the other end, as shown in fig. 2, the detection line can be movably connected at two ends, that is, after the detection line 2 horizontally penetrates through the bottom of the bottommost sandbag 1 in the cofferdam in a stretched state, two ends of the detection line 2 are movably connected to the first fixing pile 3 and the second fixing pile 4 respectively, the total displacement of the detection line 2 is obtained by detecting the distance of the two ends of the detection line 2 moving relative to the first fixing pile 3 and the second fixing pile 4 respectively, the sum of the moving distances of the two ends is the total displacement of the detection line, the total displacement of the detection line 2 is used for calculating the deformation of the two sandbags 1 penetrated by the detection line 2, and when the deformation exceeds a preset value, early warning information is given.
The detection line displacement can be obtained by directly measuring the length of the detection line retracted into the sand bag, such as the length reserved outside the sand bag at the end of the detection line is measured in advance, and the displacement of the detection line can be known by detecting the length remained outside the sand bag. For making the displacement volume of detection line present directly perceived and easily measure, as one of them embodiment, detection line 2 passes through displacement monitoring subassembly movably to be connected on second spud pile 4, the displacement monitoring subassembly includes pulley 5, connecting wire 7 and spring 6, pulley 5 sets up on the second spud pile 4, the one end of spring 6 is fixed, the other end with connecting wire 7 is connected, connecting wire 7 one end is connected with spring 6, walks around behind the pulley 5, the other end with detection line 2 links to each other, monitors the displacement volume of detection line 2 for extension second spud pile 4 through the volume of detecting spring 6. The displacement monitoring assembly can also only comprise a spring 6, one end of the spring 6 is fixed on the second fixing pile 4, the other end of the spring 6 is connected with the detection wire 2, and the displacement of the end of the detection wire 2 relative to the second fixing pile 4 is monitored by detecting the elongation of the spring 6.
As another embodiment, when the end of the testing line 2 is movably connected to the first fixing pile 3, as shown in fig. 2, the first fixing pile 3 is movably connected to the testing line 2 through a displacement monitoring assembly, the displacement monitoring assembly includes a pulley 5, a connecting line 7 and a spring 6, the pulley 5 is disposed on the first fixing pile 3, one end of the spring 6 is fixed, the other end of the spring is connected to the connecting line 7, one end of the connecting line 7 is connected to the spring 6, and after passing around the pulley 5, the other end of the connecting line is connected to the testing line 2, and the displacement of the end of the testing line 2 relative to the first fixing pile 3 is monitored by detecting the elongation of the spring 6. At this time, the sum of the displacements of the two ends of the detection line 2 is the total displacement of the detection line, that is, the total deformation of the sandbag.
In one embodiment, the displacement monitoring assembly further includes a scale mark 8 or a scale, and the scale mark 8 or the scale is disposed on the second fixing pile 4 to detect the elongation of the spring 6. The connecting wire 7 can be a steel wire rope or other flexible wires with certain tensile strength, the elongation of the connecting wire is as small as possible, and the influence of the elongation of the connecting wire on the detection result is avoided.
As another embodiment, as shown in fig. 3, one end of the testing wire 2 is movably connected to the second fixing pile 4 through a measuring tape 9, or as shown in fig. 4, two ends of the testing wire 2 are movably connected to the first fixing pile 3 and the second fixing pile 4 through measuring tapes 9 respectively; the measuring tape 9 comprises a measuring tape and a measuring spring which are connected with each other, the measuring tape 9 is fixed on the first fixing pile 3 and the second fixing pile 4, the end of the detection line 2 is connected with the free end of the measuring tape, and the displacement of the end of the detection line 2 is measured by the extension amount of the measuring tape.
In one embodiment, the detection line 2 is made of a flexible material which is not easily stretched and deformed, the detection line is a flexible line which can be bent along with the deformation of the sandbag, is not easily stretched and deformed, and is not easily subjected to force elongation deformation to influence the real reflection of the detection line on the deformation of the sandbag. The detection line 2 can be an ultrahigh molecular weight polyethylene fiber line, a carbon plastic line or a steel wire line.
As one embodiment, as shown in fig. 5, a silica gel sleeve is disposed outside a portion of the detection line 2 located in the middle of the sandbag, and fiber hairs are distributed outside the silica gel sleeve and can be inserted into the sandbag, so that the contact area is increased, and the sensing sensitivity is improved. Or the sponge layer is wrapped outside the part of the detection line positioned in the middle of the sandbag, so that the effect of the sandbag on the detection line is increased, and the sensitivity of the detection line on the deformation of the sandbag is improved.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The large sandbag cofferdam deformation early warning observation device is characterized by comprising a first fixed pile, a second fixed pile and a detection line, wherein the first fixed pile and the second fixed pile are respectively arranged at two ends of a cofferdam formed by stacking a plurality of layers of geotextile sandbags; or after the detection line horizontally penetrates through the bottom of the bottommost sandbag in the cofferdam in a stretched straight state, two ends of the detection line are movably connected to the first fixing pile and the second fixing pile respectively, the total displacement of the detection line is obtained through the movement distance of the two ends of the detection line relative to the first fixing pile and the second fixing pile respectively, the deformation of the sandbag penetrated by the detection line is obtained through the total displacement of the detection line, and when the deformation exceeds a preset value, early warning information is given.
2. The large sandbag cofferdam deformation early warning observation device as claimed in claim 1, wherein the detection line is movably connected to the second fixing pile through a displacement monitoring assembly, the displacement monitoring assembly comprises a pulley, a connecting line and a spring, the pulley is arranged on the second fixing pile, one end of the spring is fixed, the other end of the spring is connected with the connecting line, one end of the connecting line is connected with the spring, after passing around the pulley, the other end of the connecting line is connected with the detection line, and the displacement of the end of the detection line relative to the second fixing pile is monitored by detecting the elongation of the spring.
3. The large sandbag cofferdam deformation early warning observation device as claimed in claim 1, wherein when the detection line is movably connected to the first fixing pile, the detection line is movably connected to the first fixing pile through a displacement monitoring assembly, the displacement monitoring assembly comprises a pulley, a connecting line and a spring, the pulley is arranged on the first fixing pile, one end of the spring is fixed, the other end of the spring is connected to the connecting line, one end of the connecting line is connected to the spring, after passing around the pulley, the other end of the connecting line is connected to the detection line, and the displacement of the end of the detection line relative to the first fixing pile is monitored by detecting the elongation of the spring.
4. The large sandbag cofferdam deformation early warning observation device as claimed in claim 2 or 3, wherein said displacement monitoring assembly further comprises a graduated line or a graduated scale, said graduated line or graduated scale being provided on said second spud pile for detecting the elongation of the spring.
5. The large sandbag cofferdam deformation early warning observation device of claim 2 or 3, wherein the connecting line is a steel wire rope.
6. The large sandbag cofferdam deformation early warning observation device as claimed in claim 1, wherein one end of the detection line is movably connected to the second fixing pile through a tape measure, or two ends of the detection line are respectively movably connected to the first fixing pile and the second fixing pile through tape measures; the measuring tape comprises a measuring tape and a measuring spring which are connected with each other, the measuring tape is fixed on the first fixing pile and the second fixing pile, the end of the detection line is connected with the free end of the measuring tape, and the displacement of the end of the detection line is measured by the extension amount of the measuring tape.
7. The large sandbag cofferdam deformation early warning observation device of claim 1, wherein the detection line is made of a flexible material which is not easy to stretch and deform.
8. The large sandbag cofferdam deformation early warning observation device of claim 1, wherein the detection line is an ultra-high molecular weight polyethylene fiber line, a carbon plastic line or a steel wire line.
9. The large sandbag cofferdam deformation early warning observation device according to claim 1, wherein a silica gel sleeve is arranged outside the part of the detection line at the bottom of the sandbag, and fiber wool is distributed outside the silica gel sleeve and can be inserted into the sandbag to increase the contact area.
10. The large sandbag cofferdam deformation early warning observation device as claimed in claim 1, wherein the exterior of the part of the detection line at the bottom of the sandbag is wrapped with a sponge layer to increase the effect of the sandbag on the detection line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210032762.4A CN114575392A (en) | 2022-01-12 | 2022-01-12 | Deformation early warning observation device for large sandbag cofferdam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210032762.4A CN114575392A (en) | 2022-01-12 | 2022-01-12 | Deformation early warning observation device for large sandbag cofferdam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114575392A true CN114575392A (en) | 2022-06-03 |
Family
ID=81769734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210032762.4A Pending CN114575392A (en) | 2022-01-12 | 2022-01-12 | Deformation early warning observation device for large sandbag cofferdam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114575392A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0874214A1 (en) * | 1997-04-24 | 1998-10-28 | Bidim Geosynthetics S.A. | Procedure for detecting ground subsidence under a civel engineering work |
| KR101057309B1 (en) * | 2010-12-30 | 2011-08-16 | 이금석 | Apparatus for measuring convergence using fiber bragg grating sensor |
| CN103487373A (en) * | 2013-10-10 | 2014-01-01 | 江苏省交通科学研究院股份有限公司 | Slope crack monitoring device and measuring method thereof |
| CN207556617U (en) * | 2017-10-27 | 2018-06-29 | 闫磊 | A kind of hydraulic engineering Level monitor |
| CN208023626U (en) * | 2018-01-19 | 2018-10-30 | 西安高新科技职业学院 | Project Supervision foundation pit displacement measuring device |
| CN108914989A (en) * | 2018-07-22 | 2018-11-30 | 王昆 | A kind of settlement monitoring equipment under the conditions of big height difference |
| CN111105600A (en) * | 2019-12-30 | 2020-05-05 | 中国公路工程咨询集团有限公司 | Cutting slope stability dynamic monitoring and early warning system and method based on rainfall condition |
| CN213358563U (en) * | 2020-09-25 | 2021-06-04 | 浙江中咨交通科技有限公司 | Slope displacement meter embedding and mounting device |
| CN113916663A (en) * | 2021-11-29 | 2022-01-11 | 浙大城市学院 | Test device and test method for simulating drawing failure of seabed anchor plate in plane |
-
2022
- 2022-01-12 CN CN202210032762.4A patent/CN114575392A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0874214A1 (en) * | 1997-04-24 | 1998-10-28 | Bidim Geosynthetics S.A. | Procedure for detecting ground subsidence under a civel engineering work |
| KR101057309B1 (en) * | 2010-12-30 | 2011-08-16 | 이금석 | Apparatus for measuring convergence using fiber bragg grating sensor |
| CN103487373A (en) * | 2013-10-10 | 2014-01-01 | 江苏省交通科学研究院股份有限公司 | Slope crack monitoring device and measuring method thereof |
| CN207556617U (en) * | 2017-10-27 | 2018-06-29 | 闫磊 | A kind of hydraulic engineering Level monitor |
| CN208023626U (en) * | 2018-01-19 | 2018-10-30 | 西安高新科技职业学院 | Project Supervision foundation pit displacement measuring device |
| CN108914989A (en) * | 2018-07-22 | 2018-11-30 | 王昆 | A kind of settlement monitoring equipment under the conditions of big height difference |
| CN111105600A (en) * | 2019-12-30 | 2020-05-05 | 中国公路工程咨询集团有限公司 | Cutting slope stability dynamic monitoring and early warning system and method based on rainfall condition |
| CN213358563U (en) * | 2020-09-25 | 2021-06-04 | 浙江中咨交通科技有限公司 | Slope displacement meter embedding and mounting device |
| CN113916663A (en) * | 2021-11-29 | 2022-01-11 | 浙大城市学院 | Test device and test method for simulating drawing failure of seabed anchor plate in plane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Experimental study on vibration reduction by using soilbags | |
| JP2014519596A5 (en) | ||
| CN109724864B (en) | It tests the more loads of ocean engineering pile foundation-soil dynamic response and couples loading device | |
| CN111936251B (en) | Sensor-mounted metal mesh | |
| CN110714489A (en) | Distributed optical fiber sensing monitoring system for horizontal displacement of foundation pit and periphery | |
| CN106959302A (en) | A kind of pile body integrity detection system and method based on low coherence interference technology | |
| CN114575392A (en) | Deformation early warning observation device for large sandbag cofferdam | |
| Liu et al. | Experimental study on seismic response of soilbags-built retaining wall | |
| CN110346535B (en) | Soft soil site soil body parameter long-distance continuous measurement device | |
| CN101281068B (en) | Nondestructive detecting method of prestress anchoring load | |
| KR101294961B1 (en) | Apparatus for lateral loading test of pile group and lateral loading testing method using the same | |
| JP4296556B2 (en) | Filling method in soft ground and construction equipment used for the filling method | |
| Rowe et al. | The observed behaviour of a geotextile-reinforced embankment constructed on peat | |
| Rowe et al. | Geotextile strain in a full scale reinforced test embankment | |
| CN211527376U (en) | Settlement monitoring structure for slope roadbed | |
| Sastry et al. | Flexible piles in layered soil under eccentric and inclined loads | |
| JP2001082934A (en) | Dam breakage monitoring system | |
| CN209723059U (en) | A kind of cast-in-place concrete pile loading test device | |
| CN109372039B (en) | Concrete cast-in-place pile bearing capacity detection device and detection method | |
| CN221077611U (en) | Sandbag cofferdam deformation monitoring and early warning device | |
| CN110528601A (en) | PHC- steel pipe combination stake detecting of bearing capacity of a pile device and method based on Large strain | |
| Gao et al. | Large-scale model test studies on a double-layer rubber dam | |
| CN220184117U (en) | Circulating bearing capacity testing device for ocean flat anchor model foundation | |
| CN213303248U (en) | Landslide monitoring and collecting device | |
| Mirmoradi et al. | Large-scale physical model GRS walls: Evaluation of the combined effects of facing stiffness and toe resistance on performance |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230109 Address after: 523000 Building 1 and 2, No. 67, Tangxia Avenue, Tangxia Town, Dongguan City, Guangdong Province Applicant after: THE GUANGDONG NO.3 WATER CONSERVANCY AND HYDRO-ELECTRIC ENGINEERING BOARD Co.,Ltd. Applicant after: Foshan Water Conservancy Technology Center Address before: 523000 Building 1 and 2, No. 67, Tangxia Avenue, Tangxia Town, Dongguan City, Guangdong Province Applicant before: THE GUANGDONG NO.3 WATER CONSERVANCY AND HYDRO-ELECTRIC ENGINEERING BOARD Co.,Ltd. |
|
| TA01 | Transfer of patent application right |