CN110761260A - Device for observing coral sand compaction and using method - Google Patents
Device for observing coral sand compaction and using method Download PDFInfo
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- 239000004576 sand Substances 0.000 title claims abstract description 114
- 235000014653 Carica parviflora Nutrition 0.000 title claims abstract description 96
- 241000243321 Cnidaria Species 0.000 title claims abstract description 95
- 238000005056 compaction Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 170
- 239000002689 soil Substances 0.000 claims abstract description 30
- 239000004744 fabric Substances 0.000 claims description 25
- 239000004570 mortar (masonry) Substances 0.000 claims description 20
- 238000005086 pumping Methods 0.000 claims description 20
- 239000002775 capsule Substances 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 10
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
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- 230000011664 signaling Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
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- 238000005096 rolling process Methods 0.000 description 2
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- 244000132059 Carica parviflora Species 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 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
- E02D1/02—Investigation of foundation soil in situ before construction work
- E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
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Abstract
The invention discloses a device for observing coral sand compaction and a using method thereof, wherein the device comprises a loading hole, an observation area, a horizontal monitoring pipe, a camera, a vertical monitoring pipe and a signal device; the observation area is a cylindrical structure area marked on the coral sand soil layer; the loading hole is a cylindrical structure groove arranged in the central position of the observation area; one end of the horizontal monitoring pipe is connected with the loading hole, and the other end of the horizontal monitoring pipe extends into the observation area; the vertical monitoring pipe is vertically buried in the observation area, and the signal device is arranged in the vertical monitoring pipe. The device adopts the mode of burying sensor, signal device and imaging device underground in coral sand layer, has solved prior art and has need bury ground foundation pile underground, can't directly be used for coral sand body crowded densely, and only observes through the outside, and the not good problem of measurement effect has that the measuring result is accurate, and visual degree is high, can directly be used for the crowded compact relevant nature measuring characteristics of coral sand body.
Description
Technical Field
The invention relates to the field of coral sand foundation engineering construction, and particularly relates to a coral sand compaction observation device and a use method thereof.
Background
Coral sand belongs to coral reef crumbs, mainly comprises coral crumbs and other marine organism crumbs, is a special geologic body, and has the characteristics of typical looseness, porosity, low hardness and frangibility. In practical engineering, in areas with widely distributed coral sand in sea areas, coral sand is often used as a foundation, and the bearing capacity and mechanical properties of the coral sand are generally improved by compacting the coral sand. The initial compaction method is to use a large machine to carry out vibration rolling or impact rolling on the coral sand, and then in the exploration of the compaction method, a method for compacting the coral sand by using the expansion mortar is provided for saving the fund, improving the compaction effect and the like. However, as a newer method, the experimental device for the method is few, and no equipment is available for accurately and specifically monitoring the stress, deformation, displacement and other data of the coral sand under the influence of the expansion mortar.
The invention discloses a test method of offshore wind power compacted sand piles, which is characterized in that 100 sand piles are driven into an underwater sand layer in a square arrangement mode through driving test piles, a compression test is carried out through installing a reaction frame, a loading system, a reference system and a settlement measuring system, four anchor piles are used as supporting bases of a test platform and used for settlement measurement and soil pressure measurement, although the disturbance condition of the underwater compacted sand piles to a soil body can be effectively mastered, the foundation is paved through burying sand piles with large quantity, the test method is not suitable for coral sand terrain, and cannot be directly used for observing the coral sand compacted condition.
As another patent of the invention with the patent number of 'CN 103938661A', named as 'vibration immersed tube compaction pile model test device and test method', the invention is characterized in that a transparent model groove, transparent soil simulating the soil around the pile in the groove, an immersed tube with a pile shoe and a grouting pipe at the center, and a pile sinking mechanism above the transparent model groove are arranged; measuring the soil compaction effect of the vibration immersed tube compaction pile under the conditions of different pile surrounding soil body characteristics, immersed tube cross section forms, pile diameters and pile lengths by using a laser source and a digital camera which are arranged on one side outside the transparent model groove; the method has important significance for guiding the vibration immersed tube pile forming construction to influence design and construction of surrounding constructions, but lacks an expansion compaction device, is not provided with relevant observation and measurement equipment in a soil layer, only adopts an external observation mode, has poor effect, and obtains a measurement result with low accuracy.
In conclusion, it is necessary to design a device for observing coral sand compaction, which can accurately and specifically monitor the stress, deformation, displacement and other data of coral sand under the influence of the expansion mortar and provide experimental data for the improvement of the construction method and the calculation of the optimal value of the variable in the engineering.
Disclosure of Invention
The invention aims to solve the technical problem of providing a coral sand compaction observation device and a using method thereof, wherein the coral sand compaction observation device adopts a mode of embedding a sensor, a signal device and imaging equipment in a coral sand soil layer, solves the problems that foundation piles need to be embedded in the coral sand layer in the prior art, cannot be directly used for coral sand compaction, and is poor in measurement effect only through external observation, and has the characteristics of accurate measurement result, high visualization degree and capability of being directly used for coral sand compaction related property measurement.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a device for observing coral sand compaction comprises a loading hole, an observation area, a horizontal monitoring pipe, a camera, a vertical monitoring pipe and a signal device; the observation area is a cylindrical structure area marked on the coral sand soil layer; the loading hole is a cylindrical structure groove arranged in the central position of the observation area; one end of the horizontal monitoring pipe is connected with the loading hole, and the other end of the horizontal monitoring pipe extends into the observation area; the vertical monitoring pipe is vertically buried in the observation area, and the signal device is arranged in the vertical monitoring pipe.
The inner wall of the loading hole is provided with a rubber bag body with a cylindrical structure, and the outer wall of the rubber bag body is attached to the inner wall of the loading hole; the rubber capsule body can expand when being stressed.
The horizontal monitoring pipe is a telescopic straight pipe formed by connecting a plurality of hollow pipes with sequentially reduced diameters; the plurality of horizontal monitoring pipes are arranged in different directions of different horizontal planes; the horizontal monitoring tube diameter does not exceed one fifth of the loading hole depth.
The inner wall of the horizontal monitoring pipe is connected with a plurality of cameras; and at least three cameras in each horizontal monitoring pipe are arranged.
The horizontal monitoring pipe is made of organic glass materials; the lens of the camera in the horizontal monitoring pipe faces to different directions.
The vertical monitoring pipes are PVC straight pipes embedded in the observation area in the vertical direction, and the vertical monitoring pipes are embedded in different axial direction distances of the loading area.
The signal device comprises a signal generator connected to the inner wall of the vertical monitoring pipe, a pressure sensor connected to one side of the signal generator, which is close to the loading hole, and an osmometer connected to one side of the signal generator, which is far from the loading hole.
The outer side of the signal device is wrapped with waterproof cloth.
The outer sides of all lines in the horizontal monitoring pipe and the device are wrapped with carbon fiber cloth, and waterproof materials are coated at the interface of the electronic element.
The use method of the device for observing coral sand compaction comprises the following steps:
s1, calculating and determining parameters, calculating and determining the usage amount of the expansion mortar through expected load, and further determining various parameters such as a loading hole, a horizontal monitoring pipe position and a vertical monitoring pipe position;
s2, digging a loading hole at the determined position, embedding a rubber capsule body, connecting a sand pumping pipe and a high-power sand pump, pumping at the determined position, and sucking out embedding hole positions of a horizontal monitoring pipe and a vertical monitoring pipe in an observation area; stopping pumping when the depth of the pumped hole reaches the required depth, and slowly taking out the sand pumping pipe;
s3, wrapping waterproof cloth on the outer side of the signal device, wrapping carbon fiber cloth on the outer sides of the horizontal monitoring pipe and the related cable and coating waterproof materials on the outer sides of the horizontal monitoring pipe and the related cable, and electrically connecting the signal device and the camera to terminal equipment integrated with a signal receiver;
s4, connecting the camera in the horizontal monitoring pipe, connecting the signal device in the vertical monitoring pipe, then placing the horizontal monitoring pipe and the vertical monitoring pipe in the hole site which is sucked out, and stretching the horizontal monitoring pipe to a proper length;
s5, injecting quantitative expansion mortar into the loading hole, and expanding and compacting coral sand;
and S6, observing the change condition of parameters such as particle size and the like when the coral sand is compacted through a picture monitored by the camera, determining the displacement condition of each part of the coral sand observation area through the displacement of a signal source transmitted by the signal generator, collecting the whole stress data through the pressure sensor and the osmometer, and analyzing according to one or more experimental conditions.
A device for observing coral sand compaction comprises a loading hole, an observation area, a horizontal monitoring pipe, a camera, a vertical monitoring pipe and a signal device; the observation area is a cylindrical structure area marked on the coral sand soil layer; the loading hole is a cylindrical structure groove arranged in the central position of the observation area; one end of the horizontal monitoring pipe is connected with the loading hole, and the other end of the horizontal monitoring pipe extends into the observation area; the vertical monitoring pipe is vertically buried in the observation area, and the signal device is arranged in the vertical monitoring pipe. The device adopts the mode of burying sensor, signal device and imaging device underground in the coral sand soil layer, and the measuring result is accurate, and visual degree is high, can directly be used for the crowded relevant nature of coral sand soil body to measure.
In a preferred scheme, a rubber bag body with a cylindrical structure is arranged on the inner wall of the loading hole, and the outer wall of the rubber bag body is attached to the inner wall of the loading hole; the rubber capsule body can expand when being stressed. Simple structure, during the use, the internal inflation mortar that injects of rubber bag can guarantee that the mortar can not leak outward to the soil internal, carries out the crowded density to coral sand soil body on every side through the inflation of rubber bag body.
In a preferred scheme, the horizontal monitoring pipe is a telescopic straight pipe formed by connecting a plurality of hollow pipes with successively reduced diameters; the plurality of horizontal monitoring pipes are arranged in different directions of different horizontal planes; the horizontal monitoring tube diameter does not exceed one fifth of the loading hole depth. Simple structure, during the use, the level monitoring pipe is extending structure, is convenient for adjust length as required to adapt to different experimental environment, improved the suitability of device.
In a preferred scheme, the inner wall of the horizontal monitoring pipe is connected with a plurality of cameras; and at least three cameras in each horizontal monitoring pipe are arranged. Simple structure, during the use, because near the department deformation more obvious apart from the loading hole, can be comparatively intensive near the part setting in loading hole to the change of coral sand particle diameter when guaranteeing the more clear contrast of the different monitor probe images of accessible and going out crowded, to the condition that can directly excavate, the displacement condition of monitoring out different positions that can be more careful has improved the visual degree of device simultaneously.
In a preferred scheme, the horizontal monitoring pipe is made of organic glass materials; the lens of the camera in the horizontal monitoring pipe faces to different directions. The structure is simple, and when the camera is used, the organic glass ensures the waterproofness and the light transmittance, and provides a good visual field for the camera; the lens can carry out all-round monitoring to the coral sand soil body towards different directions, has improved measuring accuracy.
In an optimized scheme, the vertical monitoring pipes are PVC straight pipes which are embedded in the observation area in the vertical direction, and the vertical monitoring pipes are embedded at different distances in the axial direction of the loading area. Simple structure, during the use, many vertical monitoring pipes are buried underground to different distances, can effectively carry out the omnidirectional monitoring to observation area inside, have reduced because of the error that the measuring point is too few causes.
In a preferred scheme, the signal device comprises a signal generator connected to the inner wall of the vertical monitoring pipe, a pressure sensor connected to one side of the signal generator, which is closer to the loading hole, and an osmometer connected to one side of the signal generator, which is farther from the loading hole. The structure is simple, when the device is used, the signal generator continuously sends out position signals, the displacement of the soil body in the compaction process can be effectively mastered, the accurate value is calculated through the position variation of the signal generator, and the pressure sensor and the osmometer can measure the pressure value; the design greatly improves the observation accuracy of the device.
In a preferred scheme, waterproof cloth is wrapped on the outer side of the signal device. Simple structure, during the use, the tarpaulin can prevent that signalling device from being affected with damp or intaking from resulting in becoming invalid or damaging, has improved the durability of equipment.
In a preferred scheme, the outer sides of all lines in the horizontal monitoring pipe and the device are wrapped with carbon fiber cloth, and waterproof materials are coated at the interface of the electronic element. Simple structure, during the use, when the crowded dense deformation of coral sand body, horizontal monitoring pipe and relevant circuit probably lead to damaging because of the atress changes, wrap up the carbon cloth of high strength, can effectively protect equipment not to draw the strength damage, have improved the durability of equipment.
In a preferred scheme, the processor and the display can be selected from PC equipment; the signal generator is of a WU-T-L waterproof type, and the signal receiver is of a WIFI-U-R type; the osmometer is Jinxin JX-KYJ-30 type; the pressure sensor is selected from a model of Panasonic DP-102A.
In a preferred scheme, the use method of the device for observing coral sand compaction comprises the following steps:
s1, calculating and determining parameters, calculating and determining the usage amount of the expansion mortar through expected load, and further determining various parameters such as a loading hole, a horizontal monitoring pipe position and a vertical monitoring pipe position;
s2, digging a loading hole at the determined position, embedding a rubber capsule body, connecting a sand pumping pipe and a high-power sand pump, pumping at the determined position, and sucking out embedding hole positions of a horizontal monitoring pipe and a vertical monitoring pipe in an observation area; stopping pumping when the depth of the pumped hole reaches the required depth, and slowly taking out the sand pumping pipe;
s3, wrapping waterproof cloth on the outer side of the signal device, wrapping carbon fiber cloth on the outer sides of the horizontal monitoring pipe and the related cable and coating waterproof materials on the outer sides of the horizontal monitoring pipe and the related cable, and electrically connecting the signal device and the camera to terminal equipment integrated with a signal receiver;
s4, connecting the camera in the horizontal monitoring pipe, connecting the signal device in the vertical monitoring pipe, then placing the horizontal monitoring pipe and the vertical monitoring pipe in the hole site which is sucked out, and stretching the horizontal monitoring pipe to a proper length;
s5, injecting quantitative expansion mortar into the loading hole, and expanding and compacting coral sand;
and S6, observing the change condition of parameters such as particle size and the like when the coral sand is compacted through a picture monitored by the camera, determining the displacement condition of each part of the coral sand observation area through the displacement of a signal source transmitted by the signal generator, collecting the whole stress data through the pressure sensor and the osmometer, and analyzing according to one or more experimental conditions.
A device for observing coral sand compaction and a using method thereof comprise a loading hole, an observation area, a horizontal monitoring pipe, a camera, a vertical monitoring pipe and a signal device; the observation area is a cylindrical structure area marked on the coral sand soil layer; the loading hole is a cylindrical structure groove arranged in the central position of the observation area; one end of the horizontal monitoring pipe is connected with the loading hole, and the other end of the horizontal monitoring pipe extends into the observation area; the vertical monitoring pipe is vertically buried in the observation area, and the signal device is arranged in the vertical monitoring pipe. The device adopts the mode of burying sensor, signal device and imaging device underground in coral sand layer, has solved prior art and has need bury ground foundation pile underground, and unable direct use for coral sand body compaction, and only through outside observation, the not good problem of measurement effect has that the measuring result is accurate, and visual degree is high, can directly be used for the crowded characteristics measured of nature of coral sand body.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a front view and a side view of the horizontal monitoring tube of the present invention.
FIG. 3 is a schematic diagram of a signaling device according to the present invention.
FIG. 4 is a logic diagram of the electronic device connection of the present invention.
The reference numbers in the figures are: the device comprises a loading hole 1, a rubber capsule body 11, an observation area 2, a horizontal monitoring pipe 3, a camera 4, a vertical monitoring pipe 5, a signal device 6, a signal generator 61, a pressure sensor 62 and an osmometer 63.
Detailed Description
As shown in fig. 1-4, a device for observing coral sand compaction comprises a loading hole 1, an observation area 2, a horizontal monitoring pipe 3, a camera 4, a vertical monitoring pipe 5 and a signal device 6; the observation area 2 is a cylindrical structure area marked on the coral sand soil layer; the loading hole 1 is a cylindrical structure groove arranged in the center of the observation area 2; one end of the horizontal monitoring pipe 3 is connected with the loading hole 1, and the other end of the horizontal monitoring pipe extends into the observation area 2; the vertical monitoring pipe 5 is vertically buried in the observation area 2, and the signal device 6 is arranged in the vertical monitoring pipe 5. The device adopts the mode of burying sensor, signal device 6 and imaging device underground in the coral sand layer, and the measuring result is accurate, and visual degree is high, can directly be used for the crowded relevant nature of coral sand body to measure.
In the preferred scheme, the inner wall of the loading hole 1 is provided with a rubber capsule body 11 with a cylindrical structure, and the outer wall of the rubber capsule body 11 is attached to the inner wall of the loading hole 1; the rubber capsule body 11 can expand when being stressed. Simple structure, during the use, the inflation mortar is injected into in the rubber capsule body 11, can guarantee that the mortar can not leak outward to the soil body in, carries out the crowded density to around coral sand soil body through the inflation of rubber capsule body 11.
In a preferred scheme, the horizontal monitoring pipe 3 is a telescopic straight pipe formed by connecting a plurality of hollow pipes with sequentially reduced diameters; the plurality of horizontal monitoring pipes 3 are arranged in different directions of different horizontal planes; the diameter of the level monitoring tube 3 does not exceed one fifth of the depth of the loading hole 1. Simple structure, during the use, level monitoring pipe 3 is extending structure, is convenient for adjust length as required to the different experimental environment of adaptation has improved the suitability of device.
In the preferred scheme, the inner wall of the horizontal monitoring pipe 3 is connected with a plurality of cameras 4; the number of the cameras 4 in each horizontal monitoring pipe 3 is not less than three. Simple structure, during the use, because near department apart from loading hole 1 warp more obviously, can be comparatively intensive near the part setting of loading hole 1 to the change of coral sand particle diameter when guaranteeing the more clear contrast of the different monitor probe images of accessible goes out crowding, to the condition that can directly excavate, the displacement condition of different positions of monitoring that can be more careful has improved the visual degree of device simultaneously.
In the preferred scheme, the horizontal monitoring tube 3 is made of organic glass material; the lens of the camera 4 inside the level monitoring tube 3 is oriented in different directions. The structure is simple, and when the camera is used, the organic glass ensures the waterproofness and the light transmission, and provides a good visual field for the camera 4; the lens can carry out all-round monitoring to the coral sand soil body towards different directions, has improved measuring accuracy.
In an optimal scheme, the vertical monitoring pipes 5 are PVC straight pipes which are vertically embedded in the observation area 2, and the vertical monitoring pipes 5 are embedded at different distances in the axial direction of the loading area. Simple structure, during the use, many vertical monitoring pipes 5 are buried underground to different distances, can effectively carry out the omnidirectional monitoring to 2 insides in observation area, have reduced the error because of the measuring point is too few to cause.
In a preferred embodiment, the signal device 6 comprises a signal generator 61 connected to the inner wall of the vertical monitoring tube 5, a pressure sensor 62 connected to the side of the signal generator 61 closer to the loading hole 1, and an osmometer 63 connected to the side of the signal generator 61 farther from the loading hole 1. The structure is simple, when the device is used, the signal generator 61 continuously sends out position signals, the displacement of the soil body in the compaction process can be effectively mastered, the accurate value can be calculated through the position variation of the signal generator 61, and the pressure sensor 62 and the osmometer 63 can measure the pressure value; the design greatly improves the observation accuracy of the device.
In a preferred scheme, waterproof cloth is wrapped on the outer side of the signal device 6. Simple structure, during the use, the tarpaulin can prevent that signalling device 6 from being affected with damp or intaking from resulting in becoming invalid or damaging, has improved the durability of equipment.
In the preferred scheme, the outer sides of all lines in the horizontal monitoring pipe 3 and the device are wrapped with carbon fiber cloth, and waterproof materials are coated at the interface of an electronic element. Simple structure, during the use, when the crowded dense deformation of coral sand body, horizontal monitoring pipe 3 and relevant circuit probably lead to damaging because of the atress changes, wrap up the carbon cloth of high strength, can effectively protect equipment not pull the strength damage, have improved the durability of equipment.
In the preferred scheme, the processor and the display can be selected from PC equipment; the signal generator 61 is of a WU-T-L waterproof type, and the signal receiver is of a WIFI-U-R type; the osmometer 63 is Jinxin JX-KYJ-30; the pressure sensor 62 is selected from the loose DP-102A model.
In a preferred scheme, the use method of the device for observing coral sand compaction comprises the following steps:
s1, calculating and determining parameters, calculating and determining the usage amount of the expansion mortar through expected load, and further determining various parameters such as the positions of the loading hole 1, the horizontal monitoring pipe 3 and the vertical monitoring pipe 5;
s2, digging a loading hole 1 at a determined position, embedding a rubber capsule body 11, connecting a sand pumping pipe and a high-power sand pump, pumping at the determined position, and sucking the embedding hole positions of a horizontal monitoring pipe 3 and a vertical monitoring pipe 5 in an observation area 2; stopping pumping when the depth of the pumped hole reaches the required depth, and slowly taking out the sand pumping pipe;
s3, wrapping waterproof cloth on the outer side of the signal device 6, wrapping carbon fiber cloth on the outer sides of the horizontal monitoring pipe 3 and the related cables and coating waterproof materials, and electrically connecting the signal device 6 and the camera 4 to terminal equipment integrated with a signal receiver;
s4, connecting the camera 4 in the horizontal monitoring pipe 3, connecting the signal device 6 in the vertical monitoring pipe 5, then placing the horizontal monitoring pipe 3 and the vertical monitoring pipe 5 in the hole site which is sucked out, and stretching the horizontal monitoring pipe 3 to a proper length;
s5, injecting quantitative expansion mortar into the loading hole 1, and expanding and compacting coral sand;
s6, observing the change situation of parameters such as particle size when the coral sand is compacted through the picture monitored by the camera 4, determining the displacement situation of each part of the coral sand observation area 2 through the displacement of the signal source transmitted by the signal generator 61, collecting the whole stress data through the pressure sensor 62 and the osmometer 63, and analyzing according to one or more experimental situations.
When the device for observing coral sand compaction is installed and used, the observation area 2 is a cylindrical structure area marked on a coral sand soil layer; the loading hole 1 is a cylindrical structure groove arranged in the center of the observation area 2; one end of the horizontal monitoring pipe 3 is connected with the loading hole 1, and the other end of the horizontal monitoring pipe extends into the observation area 2; a vertical monitoring pipe 5 is vertically buried inside the observation area 2, and a signal device 6 is arranged inside the vertical monitoring pipe 5. The device adopts the mode of burying sensor, signal device 6 and imaging device underground in the coral sand layer, and the measuring result is accurate, and visual degree is high, can directly be used for the crowded relevant nature of coral sand body to measure.
When the loading device is used, the inner wall of the loading hole 1 is provided with the rubber capsule body 11 with a cylindrical structure, and the outer wall of the rubber capsule body 11 is attached to the inner wall of the loading hole 1; the rubber capsule body 11 can expand when stressed, expansion mortar is injected into the rubber capsule body 11, the mortar can be prevented from leaking into the soil body, and the surrounding coral sand soil body is compacted through expansion of the rubber capsule body 11.
When in use, the horizontal monitoring pipe 3 is a telescopic straight pipe formed by connecting a plurality of hollow pipes with the diameters decreasing in sequence; the plurality of horizontal monitoring pipes 3 are arranged in different directions of different horizontal planes; the diameter of the horizontal monitoring pipe 3 is not more than one fifth of the depth of the loading hole 1, the horizontal monitoring pipe 3 is of a telescopic structure, the length can be conveniently adjusted according to needs, so that the device is suitable for different experimental environments, and the applicability of the device is improved.
When in use, the inner wall of the horizontal monitoring pipe 3 is connected with a plurality of cameras 4; the number of the cameras 4 in each horizontal monitoring pipe 3 is not less than three, the cameras are more obviously deformed at a position close to the loading hole 1, and the cameras can be arranged more densely at a part close to the loading hole 1, so that the change of the particle size of coral sand during compaction can be clearly compared by using images of different monitoring probes, meanwhile, the displacement conditions of different positions can be more carefully monitored under the condition of direct excavation, and the visualization degree of the device is improved.
When in use, the horizontal monitoring tube 3 is made of organic glass material; the lens of the camera 4 in the horizontal monitoring tube 3 faces to different directions, and the organic glass ensures the waterproofness and the light transmittance and provides a good visual field for the camera 4; the lens can carry out all-round monitoring to the coral sand soil body towards different directions, has improved measuring accuracy.
During the use, vertical monitoring pipe 5 buries the PVC straight tube in observation area 2 for vertical direction, and many vertical monitoring pipes 5 bury in the different distance departments of loading area axial direction, and many vertical monitoring pipes 5 are buried to different distances, can effectively carry out omnidirectional monitoring to observation area 2 inside, have reduced because of the error that the measuring point led to the fact too few.
When the device is used, the signal device 6 comprises a signal generator 61 connected to the inner wall of the vertical monitoring pipe 5, a pressure sensor 62 connected to one side of the signal generator 61 close to the loading hole 1 and an osmometer 63 connected to one side of the signal generator 61 far from the loading hole 1, the signal generator 61 continuously sends out position signals, the displacement of the soil body in the compaction process can be effectively mastered, an accurate value can be calculated through the position variation of the signal generator 61, and the pressure sensor 62 and the osmometer 63 can measure the pressure value; the design greatly improves the observation accuracy of the device.
When the signal device is used, the waterproof cloth is wrapped on the outer side of the signal device 6, the waterproof cloth can prevent the signal device 6 from being affected with damp or being subjected to water to cause failure or damage, and the durability of the device is improved.
During the use, all circuit outsides all wrap up carbon cloth in horizontal monitoring pipe 3 and the device, and have coated waterproof material at the electronic component kneck, when the crowded dense deformation of coral sand soil body, horizontal monitoring pipe 3 and relevant circuit probably lead to damaging because of the atress change, wrap up high strength carbon cloth, can effectively protect equipment not to draw the strength damage, have improved the durability of equipment.
When in use, the processor and the display can be selected from PC equipment; the signal generator 61 is of a WU-T-L waterproof type, and the signal receiver is of a WIFI-U-R type; the osmometer 63 is Jinxin JX-KYJ-30; the pressure sensor 62 is selected from the loose DP-102A model.
When the device is used, firstly, parameters are calculated and determined, the usage amount of the expansion mortar is calculated and determined through expected load, and then parameters such as the positions of the loading hole 1, the horizontal monitoring pipe 3 and the vertical monitoring pipe 5 are determined; then digging a loading hole 1 at a determined position, burying a rubber capsule body 11, connecting a sand pumping pipe and a high-power sand pump, pumping at the determined position, and sucking out the burying hole positions of a horizontal monitoring pipe 3 and a vertical monitoring pipe 5 in an observation area 2; stopping pumping when the depth of the pumped hole reaches the required depth, and slowly taking out the sand pumping pipe; then wrapping waterproof cloth on the outer side of the signal device 6, wrapping carbon fiber cloth and coating waterproof materials on the outer sides of the horizontal monitoring pipe 3 and the related cables, and electrically connecting the signal device 6 and the camera 4 to terminal equipment integrated with a signal receiver; then connecting the camera 4 into the horizontal monitoring pipe 3, connecting the signal device 6 into the vertical monitoring pipe 5, then placing the horizontal monitoring pipe 3 and the vertical monitoring pipe 5 into the hole position which is sucked out, and stretching the horizontal monitoring pipe 3 to a proper length; finally, injecting quantitative expansion mortar into the loading hole 1, and expanding and compacting coral sand; the change conditions of parameters such as particle size and the like when the coral sand is compacted are observed through a picture monitored by the camera 4, the displacement conditions of all parts of the coral sand observation area 2 are determined through the displacement of a signal source transmitted by the signal generator 61, the whole stress data is collected through the pressure sensor 62 and the osmometer 63, and analysis is carried out according to one or more experimental conditions.
When the coral sand observation area 2 can be integrally excavated and backfilled, the following steps can also be adopted: firstly, preparing an excavation tool, a graduated long PVC pipe, a camera 4, carbon fiber cloth, a pressure sensor 62, a osmometer 63 and waterproof pigment; then calculating and determining parameters, digging out the whole coral sand observation area 2, dividing the coral sand observation area into a plurality of parts with different proportions according to the amount of the required detection data, and dyeing the coral sand observation area into different colors by using waterproof pigments; backfilling the dyed coral sand, and placing instruments such as a graduated monitoring pipe with a camera 4 arranged inside, a pressure sensor 62, a osmometer 63 and the like when backfilling to a required depth, wherein the camera 4 is arranged at a junction of different colors; finally, quantitative expansion mortar is placed in the loading hole 1, and the coral sand is expanded and compacted; the change condition and the displacement condition of parameters such as particle size and the like during coral sand compaction can be observed through the picture monitored by the camera 4, and the whole stress data can be collected through the pressure sensor 62 and the osmometer 63.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. A device for observing coral sand compaction and a using method thereof are characterized in that: the device comprises a loading hole (1), an observation area (2), a horizontal monitoring pipe (3), a camera (4), a vertical monitoring pipe (5) and a signal device (6); the observation area (2) is a cylindrical structure area marked on the coral sand soil layer; the loading hole (1) is a cylindrical groove arranged in the center of the observation area (2); one end of the horizontal monitoring pipe (3) is connected with the loading hole (1), and the other end of the horizontal monitoring pipe extends into the observation area (2); the vertical monitoring pipe (5) is vertically buried in the observation area (2), and the signal device (6) is arranged in the vertical monitoring pipe (5).
2. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the inner wall of the loading hole (1) is provided with a rubber bag body (11) with a cylindrical structure, and the outer wall of the rubber bag body (11) is attached to the inner wall of the loading hole (1); the rubber capsule body (11) can expand when being stressed.
3. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the horizontal monitoring pipe (3) is a telescopic straight pipe formed by connecting a plurality of hollow pipes with sequentially reduced diameters; the plurality of horizontal monitoring pipes (3) are arranged in different directions of different horizontal planes; the diameter of the horizontal monitoring pipe (3) is not more than one fifth of the depth of the loading hole (1).
4. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the inner wall of the horizontal monitoring pipe (3) is connected with a plurality of cameras (4); the number of the cameras (4) in each horizontal monitoring pipe (3) is not less than three.
5. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the horizontal monitoring pipe (3) is made of organic glass material; the lens of the camera (4) in the horizontal monitoring tube (3) faces different directions.
6. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the vertical monitoring pipes (5) are PVC straight pipes embedded in the observation area (2) in the vertical direction, and the vertical monitoring pipes (5) are embedded in the loading area (1) at different distances in the axial direction.
7. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the signal device (6) comprises a signal generator (61) connected to the inner wall of the vertical monitoring pipe (5), a pressure sensor (62) connected to the side, close to the loading hole (1), of the signal generator (61), and a osmometer (63) connected to the side, far away from the loading hole (1), of the signal generator (61).
8. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the outer side of the signal device (6) is wrapped with waterproof cloth.
9. The device for observing coral sand compaction and the use method thereof as claimed in claim 1, wherein: the outer sides of all lines in the horizontal monitoring pipe (3) and the device are wrapped with carbon fiber cloth, and waterproof materials are coated at the interface of the electronic element.
10. The use method of the coral sand compaction observation device according to any one of claims 1 to 9, comprising the steps of:
s1, calculating and determining parameters, calculating and determining the usage amount of the expansion mortar through expected load, and further determining various parameters such as the positions of a loading hole (1), a horizontal monitoring pipe (3) and a vertical monitoring pipe (5);
s2, digging a loading hole (1) at a determined position, embedding a rubber capsule body (11), connecting a sand pumping pipe and a high-power sand pump, pumping at the determined position, and sucking out embedding hole positions of a horizontal monitoring pipe (3) and a vertical monitoring pipe (5) in an observation area (2); stopping pumping when the depth of the pumped hole reaches the required depth, and slowly taking out the sand pumping pipe;
s3, wrapping waterproof cloth on the outer side of the signal device (6), wrapping carbon fiber cloth on the outer sides of the horizontal monitoring pipe (3) and the related cable and coating waterproof materials, and electrically connecting the signal device (6) and the camera (4) to the terminal equipment integrated with the signal receiver;
s4, connecting the camera (4) in the horizontal monitoring pipe (3), connecting the signal device (6) in the vertical monitoring pipe (5), then placing the horizontal monitoring pipe (3) and the vertical monitoring pipe (5) in the hole site which is sucked out, and stretching the horizontal monitoring pipe (3) to a proper length;
s5, injecting quantitative expansion mortar into the loading hole (1) and expanding and compacting coral sand;
and S6, observing the change condition of parameters such as particle size and the like when the coral sand is compacted through a picture monitored by the camera (4), determining the displacement condition of each part of the coral sand observation area through the displacement of a signal source transmitted by the signal generator (61), collecting the whole stress data through the pressure sensor (62) and the osmometer (63), and analyzing according to one or more experimental conditions.
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| CN111474052A (en) * | 2020-04-10 | 2020-07-31 | 三峡大学 | Visual test device and method for pile-surrounding coral sand crushing in pile sinking process |
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Application publication date: 20200207 Assignee: Hubei Hongzhuo Architectural Design Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980043461 Denomination of invention: Device and usage method for observing coral sand compaction Granted publication date: 20210514 License type: Exclusive License Record date: 20231019 |
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Assignee: Hubei Hongzhuo Architectural Design Co.,Ltd. Assignor: CHINA THREE GORGES University Contract record no.: X2023980043461 Date of cancellation: 20240402 |