CN116005636A - Hydraulic engineering earthwork compactness detection soil sampling device and soil sampling method - Google Patents
Hydraulic engineering earthwork compactness detection soil sampling device and soil sampling method Download PDFInfo
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- CN116005636A CN116005636A CN202310254577.4A CN202310254577A CN116005636A CN 116005636 A CN116005636 A CN 116005636A CN 202310254577 A CN202310254577 A CN 202310254577A CN 116005636 A CN116005636 A CN 116005636A
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Abstract
The invention relates to the technical field of hydraulic engineering equipment, and discloses a hydraulic engineering earthwork compactness detection soil sampling device and a soil sampling method. According to the hydraulic engineering earthwork compactness detection soil sampling device and the hydraulic engineering earthwork compactness detection soil sampling method, through the form of screw thread rotation, sampling with smaller force on a soil layer with higher compactness can be achieved, and under the condition that a screw thread structure can continuously rotate, the earthwork around a sample can be taken out, so that the appearance taking a sample area as the center and taking the periphery as an annular groove is formed, the bottom of the sample is separated from the ground through a mode of wire rope cutting, the integrity of the sample and the consistency with the soil environment of the ground are guaranteed, and the detection precision of the compactness of the sample is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering equipment, in particular to a hydraulic engineering earthwork compactness detection soil sampling device and a soil sampling method.
Background
Before hydraulic engineering is constructed in the area, soil at the foundation part is required to be compacted, then the compaction degree of the earthwork of the hydraulic engineering is used for detection, so that whether the compaction degree of the earthwork at the compacted part reaches the preset strength is determined, before the compaction degree of the earthwork is detected, a soil taking device is required to be used, the soil at the foundation part is taken out and sent to a detection working chamber for strength detection, the existing hydraulic engineering earthwork compaction degree detection soil taking device mainly comprises a longitudinal rod, a grip positioned at the top end of the longitudinal rod and a soil taking sleeve positioned at the bottom of the longitudinal rod, and when the hydraulic engineering earthwork compaction degree detection soil taking device works, the grip is held by a hand, the soil taking sleeve is aligned to the ground, and the soil taking sleeve is pulled out by pedaling the soil taking sleeve, so that part of soil enters the soil sample can be taken out.
However, because above-mentioned hydraulic engineering earthwork compactness detects sampling device is when taking a sample, relies on the earth pressure that cuts into to adhere to the inside of the sleeve that fetches earth, upwards pulls out the sleeve that fetches earth again, takes out the mode of sample and takes out the sample, in actual operation, because this engineering position's earth is in order to accord with the compactness, often soil is comparatively firm, when pulling out, because soil sample side atress leads to the sample layering fracture very easily, consequently leads to sample integrality relatively poor, and then influences the degree of accuracy that detects.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the soil sampling device and the soil sampling method for detecting the compaction degree of the earthwork of the hydraulic engineering, which can realize sampling with smaller force on a soil layer with higher compaction degree by a screw thread rotation mode, and can enable the earthwork on the periphery of a sample to be taken out under the continuous rotation of a screw thread structure, thereby forming the appearance with the sample area as the center and the periphery as an annular groove, and separating the bottom of the sample from the ground by a wire rope cutting mode, thereby ensuring the integrity of the sample and the consistency with the soil environment on the ground, further improving the detection precision of the compaction degree of the sample, and solving the technical problems.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hydraulic engineering earthwork compactness detects soil sampling device, including the vertical rotary rod of rotor plate is installed on the top, set up in the bearing installation annular body in vertical rotary rod middle section, set up in the vertical rotary rod body and be located the spacing protruding structure of bearing installation annular body below and set up in vertical rotary rod in the special-shaped spacing groove that is located below the spacing protruding structure, still include fixed mounting in vertical rotary rod bottom and periphery can be when rotatory, insert the sampling structure of ground soil with the form of screw thread atress, the part that sampling structure and soil outer peripheral face contacted can be with the mode and the soil separation of sample soil of peripheral motion to soil; the interference limiting structure is sleeved in the special-shaped limiting groove part structure and can move along the axial direction of the special-shaped limiting groove, and the interference limiting structure can keep the position unchanged when being subjected to downward pressure, so that a part, which is used for being in contact with the outer circumferential surface of soil, in the upward-moving sampling structure is limited at the periphery of sample soil; and an elastic pedal structure arranged on the periphery of the limit bulge structure through a bearing.
Through the technical scheme: through the rotatory form of screw thread, can realize the soil horizon that the compactness is higher with less dynamics sample to, screw thread structure can be under continuous rotation, can make the peripheral earthwork of sample taken out, thereby form and regard sample area as the center, the periphery is the appearance of ring channel, the mode of rethread cotton rope cutting separates sample bottom and ground, thereby guaranteed the integrality of sample and with the uniformity of ground soil environment, and then improve the detection precision of sample compactness.
Preferably, the sampling structure comprises a vertical sleeve, a first semi-annular body and a second semi-annular body, a component mounting groove for fixedly mounting a bottom end structure of a longitudinal rotary rod is arranged in the center of the upper end face of the vertical sleeve, an external thread structure is arranged on the circumferential face of the vertical sleeve, a component sleeving cavity with an opening bottom end is arranged in the vertical sleeve, a first cutting opening with the structure radius gradually reduced from top to bottom is arranged at the bottom end of the vertical sleeve, an annular body formed by combining the first semi-annular body and the second semi-annular body is sleeved in the component sleeving cavity, a second cutting opening with the structure radius gradually reduced from top to bottom is arranged at the position of the bottom end of the downward protruding component sleeving cavity, the center of an annular body formed by the first semi-annular body and the second semi-annular body is provided with a columnar sampling cavity with two open ends, two insertion holes which can be respectively contacted with the top end structures of the first semi-annular body and the second semi-annular body are arranged in the top structure of the vertical sleeve, the structure radius of the cross section of the first cutting opening is of an inverted triangle structure, the outer side of the first cutting opening is of an inclined plane structure which is gradually closed from top to bottom to the central line position of the vertical sleeve, the structure radius of the cross section of the second cutting opening is of an inverted triangle structure, the outer side of the second cutting opening is of an inclined plane structure which is gradually closed from top to bottom to the central line position of the vertical sleeve, the top end of the inclined plane structure is in seamless butt joint with the bottom end of the inclined plane structure in the first cutting opening, and the inclination between the two inclined plane structures is consistent.
Through the technical scheme: can make in imbedding ground, inlay the earth at entry position and extrude to the periphery to guarantee that the compactness of sample region can not receive great influence, guarantee the integrality and the uniformity of sample.
Preferably, the interference limiting structure comprises a cylindrical limiting cover, a first pedal ring structure is arranged at the bottom periphery of the circumferential surface of the cylindrical limiting cover, a bottom end opening is formed in the cylindrical limiting cover and can be inserted into a vertical telescopic concave structure, a special-shaped limiting hole which is sleeved at the periphery of the special-shaped limiting groove and can longitudinally move along the special-shaped limiting groove is formed in the center of the upper end surface of the cylindrical limiting cover, two limiting insertion rods which can be respectively inserted into the two insertion holes are arranged at the top ends of the inner surface of the cylindrical limiting cover, when the upper end surface of the cylindrical limiting cover is in interference with the bottom of the limiting protruding structure, the bottom end of the limiting insertion rod is flush with the bottom end of the insertion hole, and when the bottom of the first pedal ring structure is level with the ground, the bottom end of the limiting insertion rod is flush with the bottom end of the first cutting hole.
Through the technical scheme: so that the columnar sample stands out in a ground forming manner, and the integrity and consistency of the columnar sample are maintained.
Preferably, the elastic pedal structure comprises a shaft sleeve rotatably arranged on the periphery of the bearing mounting annular body through a bearing, two horizontal supporting rods are arranged on two opposite sides of the shaft sleeve, a horizontal limiting plate is respectively arranged at the end part of each horizontal supporting rod, a longitudinal supporting rod capable of moving along the axial direction of the longitudinal supporting rod is sleeved at the center of each horizontal limiting plate, a top limiting plate is arranged at the top end of each longitudinal supporting rod, a main spiral spring is sleeved on a rod body between the top limiting plate and the horizontal limiting plate through the longitudinal supporting rod, a second pedal ring structure is arranged at the bottom end of each longitudinal supporting rod, an inserting structure is arranged at the bottom end of each second pedal ring structure, and when the bottom of each second cutting opening and the second pedal ring structure are simultaneously abutted to the ground, the main spiral spring is in a compressed state.
Through the technical scheme: the device is beneficial to being inserted into the soil, so that the external thread structure can be stably and effectively used for digging the ground, and the simplicity and efficiency of the work are improved.
Preferably, the screw thread protection structure (9) is including being used to the rotatory shell (91) of both hands, but the center cover of shell (91) rotates fixed column (92) relatively, and the center of a terminal surface of fixed column (92) is provided with and is used for overlapping main mounting hole (93) of rotor plate (2), fixed column (92) are located the periphery at fixed column (92) circumference middle part and set up two symmetrical but each other not annular and the cross section is circular structure's arc movable hole (95), the inner ring of arc movable hole (95) communicates through arc movable groove (94) with the corresponding position of fixed column (92), the inside of every arc movable hole (95) is all laid a radian less but movable block (96) of structure appearance matching arc movable hole (95) partial radian structure, the inner ring of two movable blocks (96) is through limiting block (97) and the circumference fixed column (92) fixed connection that can follow arc movable groove (94) arc length motion, two movable blocks (96) are laid one respectively and are placed at arc movable hole (95) and be in the semi-compression state's of arc movable hole (98) in symmetrical terminal surface, reset spring (98) take place in the screw thread deformation intensity in the screw thread structure (63) when the screw thread deformation of screw thread structure (63) takes place in the outside the time.
Through the technical scheme: when rotatory shell (91) of rotating, can drive rotor plate (2) rotation, and then make external screw thread structure (63) rotatory, and when external screw thread structure (63) rotatory in-process, when encountering the great phenomenon of rotation resistance, and when this rotation resistance is greater than the elastic strength of reset coil spring (98), can make reset coil spring (98) compress, and then make take place relative motion between rotating shell (91) and fixed column (92), at this moment, can indicate that moment of torsion intensity reaches the intensity when external screw thread structure (63) warp, need in time stop rotation work, thereby provide the function of protection early warning to external screw thread structure (63).
Preferably, S1: the first semi-annular body and the second semi-annular body are sleeved in the part sleeving cavity in a combined mode, and then the part sleeving cavity is aligned to the ground, and the bottom end of the second cutting opening is in contact with the ground; s2: stepping down the second pedal ring structure with feet so that the two insertion structures are fully inserted into the soil and the bottom of the second pedal ring structure is brought into contact with the ground; s3: rotating the rotating housing in a direction which enables the external thread structure to extend into the soil layer in a form of being embedded into the soil, and continuously rotating the rotating housing, and stopping rotating when the soil at the external thread structure is completely led out; s4: the second pedal ring structure is loosened, then the first pedal ring structure is trampled, the bottom of the first pedal ring structure is in contact with the ground, the longitudinal rotary rod is pulled upwards slowly, when the top end of the vertical sleeve is abutted against the top end face of the cylindrical limit cover, the first pedal ring structure is loosened, the device is taken out, at the moment, the first semi-annular body and the second semi-annular body can be retained in a ground annular groove formed by cutting of the external thread structure, and the first semi-annular body and the second semi-annular body are taken down by applying force to the periphery; s5: taking a string, winding the string around the root of the soil sample column formed by the columnar sampling cavity for one circle, and pulling the two ends of the string outwards, wherein when the string is tightened, the soil sample is separated from the ground, so that a required sample is taken out.
Compared with the prior art, the invention provides the hydraulic engineering earthwork compactness detection soil sampling device and the hydraulic engineering earthwork compactness detection soil sampling method, which have the following beneficial effects:
according to the hydraulic engineering earthwork compactness detection soil sampling device and the hydraulic engineering earthwork compactness detection soil sampling method, through the form of screw thread rotation, sampling with smaller force on a soil layer with higher compactness can be achieved, and under the condition that a screw thread structure can continuously rotate, the earthwork around a sample can be taken out, so that the appearance taking a sample area as the center and taking the periphery as an annular groove is formed, the bottom of the sample is separated from the ground through a mode of wire rope cutting, the integrity of the sample and the consistency with the soil environment of the ground are guaranteed, and the detection precision of the compactness of the sample is improved.
Drawings
FIG. 1 is a schematic diagram of the present invention in full section;
FIG. 2 is a perspective view of a longitudinal rotary rod according to the present invention;
FIG. 3 is a perspective cross-sectional view of a sampling structure according to the present invention;
FIG. 4 is a perspective cross-sectional view of the abutment stop structure of the present invention;
FIG. 5 is a schematic view of the elastic pedal structure of the present invention in full section;
fig. 6 is a schematic diagram of a thread protecting structure in full section.
Wherein: 1. a longitudinal rotary rod; 2. a rotating plate; 3. a bearing mounting annular body; 4. a limit bulge structure; 5. a special-shaped limit groove; 6. a sampling structure; 61. a vertical sleeve; 62. a component mounting groove; 63. an external thread structure; 64. a component housing cavity; 65. a first semi-annular body; 66. a second semi-annular body; 67. a columnar sampling cavity; 68. a first cut; 69. a second cut; 610. an insertion hole; 7. a collision limit structure; 71. a cylindrical limit cover; 72. a recessed structure; 73. a first pedal ring structure; 74. a special-shaped limiting hole; 75. a limit insertion rod; 8. an elastic pedal structure; 81. a shaft sleeve; 82. a horizontal support bar; 83. a horizontal limiting plate; 84. a longitudinal support bar; 85. a second pedal ring structure; 86. an insertion structure; 87. a top limit plate; 88. a main coil spring; 9. a thread protection structure; 91. rotating the housing; 92. fixing the column; 93. a main mounting hole; 94. an arc-shaped movable groove; 95. an arc movable hole; 96. a movable block; 97. a limiting block; 98. and a return coil spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a soil sampling device for detecting the compaction degree of earthwork of hydraulic engineering comprises a longitudinal rotary rod 1, a bearing installation annular body 3, a limiting convex structure 4, a special-shaped limiting groove 5, a sampling structure 6, and a sampling structure 6, wherein the top end of the longitudinal rotary rod 1 is provided with a rotary plate 2, the bearing installation annular body 3 is arranged at the middle section of the longitudinal rotary rod 1, the limiting convex structure 4 is arranged on the rod body of the longitudinal rotary rod 1 and is positioned below the bearing installation annular body 3, the special-shaped limiting groove 5 is arranged on the longitudinal rotary rod 1 and is positioned below the limiting convex structure 4, the sampling structure 6 is fixedly arranged at the bottom of the longitudinal rotary rod 1, the periphery of the sampling structure 6 can be inserted into ground soil in a threaded stressed mode when the periphery of the sampling structure is rotated, and a part, which is in contact with the outer circumferential surface of soil, can be separated from sample soil in a mode of moving towards the periphery of the soil; the interference limiting structure 7 is sleeved in a part of the structure of the special-shaped limiting groove 5 and can axially move along the special-shaped limiting groove 5, and the position of the interference limiting structure 7 can be kept unchanged when the interference limiting structure is subjected to downward pressure, so that a part, which is used for being in contact with the outer circumferential surface of soil, in the upward-moving sampling structure 6 is limited at the periphery of sample soil; and an elastic pedal structure 8 arranged on the periphery of the limit bulge structure 4 through a bearing.
Referring to fig. 3, the sampling structure 6 includes a vertical sleeve 61, a first semi-annular body 65 and a second semi-annular body 66, a component mounting groove 62 for fixedly mounting the bottom end structure of the longitudinal rotary rod 1 is provided at the center of the upper end surface of the vertical sleeve 61, an external thread structure 63 is provided on the circumferential surface of the vertical sleeve 61, a component housing cavity 64 with an open bottom end is provided in the vertical sleeve 61, a first cutting opening 68 with a gradually decreasing structure radius is provided at the bottom end of the vertical sleeve 61, an annular body composed of the first semi-annular body 65 and the second semi-annular body 66 is housed in the component housing cavity 64, a second cutting opening 69 with a gradually decreasing structure radius is provided at the bottom end of the downward protruding component housing cavity 64, the center of the ring body formed by the first semi-ring body 65 and the second semi-ring body 66 is provided with a columnar sampling cavity 67 with two open ends, two insertion holes 610 which can respectively contact the top end structures of the first semi-ring body 65 and the second semi-ring body 66 are arranged in the top structure of the vertical sleeve 61, the structure radius of the cross section of the first cutting opening 68 is an inverted triangle structure, the outer side of the first cutting opening 68 is an inclined plane structure which gradually approaches the central line part of the vertical sleeve 61 from top to bottom, the structure radius of the cross section of the second cutting opening 69 is an inverted triangle structure, the outer side of the second cutting opening 69 is an inclined plane structure which gradually approaches the central line part of the vertical sleeve 61 from top to bottom, the top end of the inclined plane structure is in seamless butt joint with the bottom end of the inclined plane structure in the first cutting opening 68, the inclination between the two is consistent, when the vertical sleeve 61 rotates along with the direction of the longitudinal rotary rod 1, the second cutting hole 69 and the first cutting hole 68 can be embedded into the ground due to the structural shape, soil at the embedded inlet portion is extruded to the periphery, so that the compactness of a sample area is not greatly affected, in the rotating process, after the external thread structure 63 is embedded into the ground soil in a thread mode, a stress in the spiral direction is formed between the external thread structure and the ground, so that the rotating force is converted into downward pressure, the ground is easily inserted, a sample enters the cylindrical sampling cavity 67, and in the rotating process, the first semi-annular body 65 and the second semi-annular body 66 can not generate a rotating state, so that the integrity and consistency of the sample are guaranteed.
Referring to fig. 4, the interference limiting structure 7 includes a cylindrical limiting cover 71, a first pedal ring structure 73 is disposed at the bottom periphery of the circumferential surface of the cylindrical limiting cover 71, a bottom end opening is disposed in the cylindrical limiting cover 71 and can be inserted into a concave structure 72 of the vertical sleeve 61, a special-shaped limiting hole 74 sleeved at the periphery of the special-shaped limiting groove 5 and capable of moving longitudinally is disposed at the center of the upper end surface of the cylindrical limiting cover 71, two limiting insertion rods 75 which can be inserted into the two insertion holes 610 are mounted at the top end of the inner surface of the cylindrical limiting cover 71 respectively, when the upper end surface of the cylindrical limiting cover 71 is in interference with the bottom of the limiting protrusion structure 4, the bottom end of the limiting insertion rod 75 is flush with the bottom end of the insertion hole 610, when the bottom of the first pedal ring structure 73 is flush with the ground, the bottom end of the limiting insertion rod 75 is flush with the bottom end of the first cut 68, and when the first pedal ring structure 73 is stepped, at this time, the longitudinal 1 is pulled upwards again, the insertion rod 75 can enable the first semi-annular body 65 and the second semi-annular body 66 to be generated to be in the upward motion, and the second semi-annular body 66 can not keep the height of the two semi-annular bodies to keep the same with the first semi-annular body 65 and the other semi-annular body, and the first annular body can be separated from the first semi-annular body 65 and the first semi-annular body and the other annular body is separated from the first semi-annular body and the first annular body and the other annular body, and the first semi-annular body is separated from the first annular body and the first semi-annular body and the cylindrical body is the cylindrical body and the cylindrical ring structure and the cylindrical body.
Referring to fig. 5, the elastic pedal structure 8 includes a shaft sleeve 81 rotatably mounted on the periphery of the bearing mounting ring 3 through a bearing, the shaft sleeve 81 is provided with two horizontal support rods 82 on opposite sides, the end of each horizontal support rod 82 is provided with a horizontal limiting plate 83, the center of each horizontal limiting plate 83 is sleeved with a longitudinal support rod 84 capable of moving along the axial direction thereof, the top end of each longitudinal support rod 84 is provided with a top limiting plate 87, the rod body between the top limiting plate 87 and the horizontal limiting plate 83 is sleeved with a main coil spring 88, the bottom end of each longitudinal support rod 84 is provided with a second pedal ring structure 85, the bottom end of each second pedal ring structure 85 is provided with an insertion structure 86, when the bottom of the second cutting opening 69 and the second pedal ring structure 85 are simultaneously abutted against the ground, the main coil spring 88 is in a compressed state, when the second pedal ring structure 85 is stepped down by feet, the two insertion structures 86 are completely inserted into the soil, and the bottom of the second pedal ring structure 85 is in contact with the ground, at this time, the main coil spring 88 can be in a compressed state, under the renting action of the elastic force, the horizontal limiting plate 83 drives the longitudinal rotary rod 1 and the second cutting opening 69 to apply pressure to the ground, and the pressure is favorable for the insertion of the horizontal limiting plate into the soil, so that the external thread structure 63 is stably and effectively used for digging the ground, and the simplicity and the efficiency of the work are improved.
In use, S1: the first semi-annular body 65 and the second semi-annular body 66 are combined and sleeved inside the component sleeved cavity 64, and then the component sleeved cavity is aligned with the ground, and the bottom end of the second cutting opening 69 is in contact with the ground; s2: stepping down the second pedal ring structure 85 with the foot so that the two insertion structures 86 are fully inserted into the soil and the bottom of the second pedal ring structure 85 is brought into contact with the ground; s3: rotating the rotary housing 91 in a direction which enables the male screw 63 to extend into the soil layer in the form of being embedded in the soil, and continuously rotating the rotary housing 91, stopping the rotation when the soil at the location of the male screw 63 is completely guided out by the same; s4: the second pedal ring structure 85 is loosened, then the first pedal ring structure 73 is stepped on, the bottom of the first pedal ring structure 73 is in contact with the ground, the longitudinal rotary rod 1 is pulled upwards slowly, when the top end of the vertical sleeve 61 is abutted against the top end face of the cylindrical limit cover 71, the first pedal ring structure 73 is loosened, the device is taken out, at the moment, the first semi-annular body 65 and the second semi-annular body 66 are retained in the ground annular groove formed by cutting of the external thread structure 63, and the first semi-annular body 65 and the second semi-annular body 66 are taken down by applying force to the periphery; s5: a string is taken, the string is wound around the root of the soil sample column formed by the columnar sampling cavity 67 for one circle, and two ends of the string are pulled outwards, when the string is tightened, the sample soil base is separated from the ground, so that a required sample is taken out.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a hydraulic engineering earthwork compactness detects soil pick-up device, installs vertical rotary rod (1) of rotor plate (2) including the top, set up in bearing installation annular body (3) in vertical rotary rod (1) middle section, set up in the body of rod of vertical rotary rod (1) and be located spacing protruding structure (4) of bearing installation annular body (3) below and set up in vertical rotary rod (1) be located special-shaped spacing groove (5) below spacing protruding structure (4), its characterized in that: the sampling structure (6) is fixedly arranged at the bottom of the longitudinal rotary rod (1) and the periphery of the sampling structure can be inserted into the ground soil in a threaded stressed mode when the sampling structure rotates, and a part, which is in contact with the outer circumferential surface of the soil, of the sampling structure (6) can be separated from the sample soil in a mode of moving towards the periphery of the soil;
the interference limiting structure (7) is sleeved in a part of the structure of the special-shaped limiting groove (5) and can axially move along the special-shaped limiting groove (5), and the interference limiting structure (7) can keep the position unchanged when being subjected to downward pressure, so that a part, which is used for being in contact with the outer circumferential surface of soil, in the upward-moving sampling structure (6) is limited on the periphery of sample soil;
an elastic pedal structure (8) arranged at the periphery of the limit bulge structure (4) through a bearing;
and a screw thread protection structure (9) which is sleeved on the circumference of the rotating plate (2) and can rotate manually.
2. The hydraulic engineering earthwork compactness detection soil sampling device as claimed in claim 1, characterized in that: the sampling structure (6) comprises a vertical sleeve (61), a first semi-annular body (65) and a second semi-annular body (66), a component mounting groove (62) for fixedly mounting a bottom end structure of a longitudinal rotary rod (1) is formed in the center of the upper end face of the vertical sleeve (61), an external thread structure (63) is arranged on the circumferential face of the vertical sleeve (61), a component sleeving cavity (64) with an opening bottom is formed in the inside of the vertical sleeve (61), a first cutting opening (68) with the structure radius gradually decreasing from top to bottom is formed in the bottom of the vertical sleeve (61), an annular body formed by combining the first semi-annular body (65) and the second semi-annular body (66) is sleeved in the inside of the component sleeving cavity (64), a second cutting opening (69) with the structure radius gradually decreasing from top to bottom is formed in the position of the bottom protruding downwards, and the annular body center formed by the first semi-annular body (65) and the second semi-annular body (66) is provided with an opening at the two ends, and the first semi-annular body (65) and the second semi-annular body (66) can be inserted into the first semi-annular body (610) and the top of the vertical sleeve (61) respectively.
3. The hydraulic engineering earthwork compactness detection soil sampling device as claimed in claim 2, characterized in that: the structure radius of the cross section of the first cutting opening (68) is an inverted triangle structure, and the outer side of the first cutting opening (68) is an inclined surface structure which gradually closes up from top to bottom to the central line part of the vertical sleeve (61).
4. A hydraulic engineering earth compaction degree detection soil sampling device according to claim 3, wherein: the structure radius of the cross section of the second cutting opening (69) is an inverted triangle structure, the outer side of the second cutting opening (69) is an inclined surface structure which gradually closes from top to bottom at the central line part of the vertical sleeve (61), the top end of the inclined surface structure is in seamless butt joint with the bottom end of the inclined surface structure in the first cutting opening (68), and the inclination between the top end and the bottom end is consistent.
5. The hydraulic engineering earthwork compactness detection soil sampling device of claim 4, characterized in that: the interference limit structure (7) comprises a cylindrical limit cover (71), a first pedal ring structure (73) is arranged on the periphery of the bottom of the circumferential surface of the cylindrical limit cover (71), a bottom end opening is formed in the cylindrical limit cover (71) and can be inserted into a concave structure (72) of the vertical sleeve (61), a special-shaped limit hole (74) sleeved on the periphery of the special-shaped limit groove (5) and capable of longitudinally moving along the special-shaped limit groove is formed in the center of the upper end surface of the cylindrical limit cover (71), and two limit insertion rods (75) which can be respectively inserted into the two insertion holes (610) are arranged on the top end of the inner surface of the cylindrical limit cover (71).
6. The hydraulic engineering earthwork compactness detection soil sampling device of claim 5, characterized in that: when the upper end face of the cylindrical limit cover (71) is abutted to the bottom of the limit protruding structure (4), the bottom end of the limit inserting rod (75) is flush with the bottom end of the inserting hole (610), and when the bottom of the first pedal ring structure (73) is level with the ground, the bottom end of the limit inserting rod (75) is flush with the bottom end of the first cutting opening (68).
7. The hydraulic engineering earthwork compactness detection soil sampling device of claim 6, characterized in that: the elastic pedal structure (8) comprises shaft sleeves (81) which can be rotatably arranged on the periphery of a bearing mounting annular body (3) through bearings, two horizontal supporting rods (82) are arranged on two opposite sides of the shaft sleeves (81), a horizontal limiting plate (83) is respectively arranged at the end part of each horizontal supporting rod (82), a longitudinal supporting rod (84) which can move along the axial direction of the horizontal limiting plate is sleeved at the center of each horizontal limiting plate (83), a top limiting plate (87) is arranged at the top end of each longitudinal supporting rod (84), a main spiral spring (88) is sleeved on a rod body between the top limiting plate (87) and the horizontal limiting plate (83), a second pedal ring structure (85) is arranged at the bottom end of each longitudinal supporting rod (84), an inserting structure (86) is arranged at the bottom of each second pedal ring structure (85), and when the bottom of each second cutting opening (69) and the second pedal ring structure (85) are simultaneously abutted to the ground, the main spiral spring (88) is in a compressed state.
8. The hydraulic engineering earthwork compactness detection soil sampling device of claim 7, characterized in that: the thread protection structure (9) comprises a rotating shell (91) capable of rotating with both hands, a relatively rotating fixed column (92) is sleeved at the center of the rotating shell (91), a main mounting hole (93) for sleeving a rotating plate (2) is formed in the center of one end face of the fixed column (92), two symmetrical arc-shaped movable holes (95) which are not communicated with each other and are of circular structures in cross section are formed in the periphery of the middle of the circumferential surface of the fixed column (92), an inner ring of each arc-shaped movable hole (95) is communicated with a corresponding part of the fixed column (92) through an arc-shaped movable groove (94), movable blocks (96) with small radian and structure appearance matched with the arc-shaped movable holes (95) are arranged in the inner ring of each arc-shaped movable hole (95), the inner rings of the two movable blocks (96) are fixedly connected with the circumferential surface of the fixed column (92) through limiting blocks (97) capable of moving along the arc length of the arc-shaped movable grooves (94), and the two movable blocks (96) are respectively arranged on the symmetrical end faces to form a reset spring (98) which is placed in the arc-shaped movable holes (95) and is in a semi-compressed state.
9. The hydraulic engineering earthwork compactness detection soil sampling device of claim 8, characterized in that: after installation, the return coil spring (98) can be deformed in the process that the external thread structure (63) is screwed into the soil, and the elastic strength of the return coil spring (98) is smaller than the strength required when the external thread structure (63) is deformed.
10. A soil sampling method for a hydraulic engineering soil compaction degree detection soil sampling device according to any one of claims 1 to 9, wherein: the method comprises the following steps:
s1: the first semi-annular body (65) and the second semi-annular body (66) are sleeved in the part sleeving cavity (64) in a combined mode, and then the part sleeving cavity is aligned to the ground, and the bottom end of the second cutting hole (69) is in contact with the ground;
s2: stepping down the second pedal ring structure (85) with the foot such that the two insertion structures (86) are fully inserted into the soil and the bottom of the second pedal ring structure (85) is brought into contact with the ground;
s3: rotating the rotating housing (91) in a direction which enables the male screw structure (63) to extend into the soil layer in the form of being embedded in the soil, and continuously rotating the rotating housing (91), stopping rotating when the soil at the position of the male screw structure (63) is completely guided out by the rotating housing;
s4: the second pedal ring structure (85) is loosened, then the first pedal ring structure (73) is stepped on, the bottom of the first pedal ring structure (73) is in contact with the ground, the longitudinal rotary rod (1) is pulled upwards slowly, when the top end of the vertical sleeve (61) is abutted to the top end face of the cylindrical limit cover (71), the first pedal ring structure (73) is loosened, the device is taken out, at the moment, the first semi-annular body (65) and the second semi-annular body (66) can be retained in a ground annular groove formed by cutting of the external thread structure (63), and the first semi-annular body (65) and the second semi-annular body (66) are taken down by applying force to the periphery;
s5: taking a string, winding the string around the root of the soil sample column body formed by the columnar sampling cavity (67) for one circle, and pulling the two ends of the string outwards, wherein when the string is tightened, the sample soil base is separated from the ground, so that a required sample is taken out.
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| CN118050198A (en) * | 2024-03-22 | 2024-05-17 | 山东工程职业技术大学 | Road bridge compactness test detection device |
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