CN219908869U - Foundation bearing capacity detection device - Google Patents

Foundation bearing capacity detection device Download PDF

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Publication number
CN219908869U
CN219908869U CN202321558990.1U CN202321558990U CN219908869U CN 219908869 U CN219908869 U CN 219908869U CN 202321558990 U CN202321558990 U CN 202321558990U CN 219908869 U CN219908869 U CN 219908869U
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China
Prior art keywords
rod
sleeve
bearing capacity
capacity detection
detection device
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CN202321558990.1U
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Inventor
马浩
蒋俊
何智
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Sichuan Xingye Geotechnical Engineering Testing Co ltd
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Sichuan Xingye Geotechnical Engineering Testing Co ltd
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Priority to CN202321558990.1U priority Critical patent/CN219908869U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The utility model relates to a foundation bearing capacity detection device, and belongs to the technical field of foundation bearing capacity detection. The novel hydraulic lifting device comprises a probe rod and a penetrating hammer, and further comprises an A-frame and a sleeve, wherein the sleeve is arranged at the top of the A-frame, the sleeve is sleeved outside the probe rod, a moving rod, a lifting component and a limiting component are arranged on the sleeve in a sleeved mode, the moving rod is arranged on the sleeve in a sliding mode along the vertical direction, a deflector rod is arranged at the lower end of the moving rod in a rotating mode, the lifting component is connected with the moving rod and used for driving the moving rod to move along the vertical direction, the limiting component is arranged on the moving rod and connected with the deflector rod, and the limiting component enables the deflector rod to always have a trend of rotating to be perpendicular to the moving rod and is further used for limiting and fixing the deflector rod. The utility model has the effect of reducing the labor intensity of workers.

Description

Foundation bearing capacity detection device
Technical Field
The utility model relates to the technical field of foundation bearing capacity detection, in particular to a foundation bearing capacity detection device.
Background
The bearing capacity of the foundation is the bearing potential exerted by the increase of load on the unit area of foundation soil, and the common unit Kpa is a comprehensive term for evaluating the stability of the foundation. The foundation bearing capacity detection can be divided into natural foundation bearing capacity detection and composite foundation bearing capacity detection. The natural foundation can meet the requirement of bearing all loads of the foundation in a natural state, and manual treatment is not needed. In evaluating the bearing capacity of a natural foundation and evaluating the strength and deformation parameters of foundation soil, a dynamic sounding test method is generally adopted. The dynamic sounding test is a scientific test for judging the engineering mechanical properties of a natural foundation according to the difficulty of the penetrating hammer probe with a certain specification, a certain size and a certain shape and a specific free falling distance. The dynamic sounding can be divided into light, heavy and extra heavy tests according to different soil layer conditions.
When the light-duty dynamic touch test is carried out, the penetrating hammer penetrates into the touch probe rod with the steel anvil and the hammer pad, the probe and the touch probe rod are placed on the ground at the test site, and a worker lifts the penetrating hammer to a preset height and enables the penetrating hammer to fall freely to strike the hammer pad, so that the probe is beaten into the soil.
In the process of carrying out the light-duty dynamic sounding test, the worker is required to manually lift the core through hammer to a preset height for many times, and the labor intensity of the worker is high.
Disclosure of Invention
In order to reduce the labor intensity of workers, the utility model provides a foundation bearing capacity detection device.
The utility model provides a foundation bearing capacity detection device which adopts the following technical scheme:
the utility model provides a foundation bearing capacity detection device, includes probe rod and cross the core hammer, still includes a tripod and sleeve, the sleeve sets up at the tripod top, just the sleeve cover is established outside the probe rod, be provided with movable rod, lifting unit and spacing subassembly on the sleeve, the movable rod slides along vertical direction and sets up on the sleeve, the movable rod lower extreme rotates and is provided with the driving lever, lifting unit is connected and is used for driving the movable rod and removes along vertical direction with the movable rod, spacing subassembly sets up on the movable rod and is connected with the driving lever, spacing subassembly makes the driving lever have the trend of rotation to perpendicular to movable rod all the time, just spacing subassembly still is used for carrying out spacing fixedly to the driving lever.
Optionally, the movable rods are arranged on two sides of the sleeve, and the two movable rods are opposite to handles on two sides of the through hammer respectively.
Optionally, the lifting assembly comprises a rodless electric cylinder, the rodless electric cylinder is vertically arranged on the sleeve, and the movable rod is connected and arranged on a sliding table of the rodless electric cylinder.
Optionally, spacing subassembly includes pivot, torsional spring, retaining member and unblock piece, the chamber of holding has been seted up to the carriage release lever lower extreme, the fixed middle part that sets up in holding the chamber of pivot, the driving lever rotates through the pivot and sets up in the carriage release lever, the torsional spring cover is established in the pivot and is connected with the driving lever, the torsional spring makes the driving lever have the trend of rotating to the perpendicular to carriage release lever all the time, retaining member and unblock piece all set up on the inner wall that holds the chamber, the retaining member is used for spacing fixedly to the carriage release lever, the unblock piece is used for releasing the spacing of retaining member to the carriage release lever.
Optionally, the retaining member includes steel ball and cutting ferrule, offer the locking groove that the cross-section is right trapezoid on holding the lateral wall in chamber, the distance of locking groove upper end diapire to the driving lever is greater than the distance of locking groove lower extreme diapire to the driving lever, the cutting ferrule is the annular sleeve that both ends are connected with the slide bar, the steel ball joint is in the cutting ferrule, the cutting ferrule slides along the direction that is on a parallel with locking groove diapire and sets up between the both sides wall of locking groove, one side of steel ball remains all the time and contradicts with locking groove bottom wall, the unlocking member is used for driving the steel ball and upwards moves along locking groove diapire.
Optionally, a spring is arranged on the clamping sleeve, and the other end of the spring is connected with the top side wall of the locking groove.
Optionally, the unlocking piece comprises an electromagnet, and the electromagnet is embedded at the top of the locking groove.
Optionally, a groove opposite to the handle of the through hammer is formed in the deflector rod.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. when a light dynamic sounding test is carried out, the probe rod is arranged at a foundation to be detected, the triangular bracket is arranged outside the probe rod, the lifting assembly drives the moving rod to move downwards, so that the deflector rod is contacted with handles on two sides of the through hammer and moves downwards along with the moving rod, and the deflector rod rotates until the deflector rod moves to the position below the handles of the through hammer; at the moment, the shifting rod is kept perpendicular to the moving rod under the action of the limiting assembly, and the limiting assembly limits and fixes the moving rod at the current position; the lifting assembly drives the moving rod to move upwards, so that the penetrating hammer above the deflector rod is driven to move upwards, the limiting assembly releases limiting fixation of the deflector rod after the penetrating hammer moves to the designed height, and the penetrating hammer drives the deflector rod to rotate under the action of gravity and then freely falls down to hammer the probe rod to complete one-time hammering; repeating the flow, hammering the probe rod for a plurality of times, and completing a dynamic sounding test;
2. the hammering evaluation rate of the through hammer can be adjusted by adjusting the moving speed of the moving rod driven by the lifting assembly, so that the hammer is suitable for different detection test requirements;
3. the torsion spring enables the deflector rod to always have a trend of rotating to be perpendicular to the moving rod, and at the moment, the side face of the deflector rod is in contact with the steel ball; when the driving lever moves to the lower part of the handle of the through hammer, the moving lever moves upwards at the moment, the driving lever has a trend of rotating downwards towards the moving lever under the action of the gravity of the through hammer, at the moment, the driving lever drives the two steel balls to move downwards, a gap between the two steel balls has a reduced trend, the driving lever is clamped and fixed by the two steel balls, the driving lever can drive the through hammer to move upwards, and accordingly lifting is facilitated by driving the through hammer through the driving lever.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
Fig. 2 is a schematic view for showing a structure of a movable bar in an embodiment of the present utility model.
Fig. 3 is a cross-sectional view for illustrating the structure of the spacing assembly in the embodiment of the present utility model.
Reference numerals illustrate:
1. a probe rod; 2. a core penetrating hammer; 3. a tripod; 31. a sleeve; 4. a moving rod; 41. a deflector rod; 411. a groove; 42. a receiving chamber; 43. a locking groove; 5. a rodless electric cylinder; 61. a rotating shaft; 62. a torsion spring; 63. steel balls; 64. a cutting sleeve; 65. a spring; 66. an electromagnet.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-3.
The embodiment of the utility model discloses a foundation bearing capacity detection device, referring to fig. 1, the foundation bearing capacity detection device comprises a probe rod 1 and a penetrating hammer 2, wherein the upper part of the probe rod 1 is provided with a steel anvil and a hammer pad, the penetrating hammer 2 is sleeved at the upper end of the probe rod 1, and when a light power penetration test is carried out, the penetrating hammer 2 freely falls and impacts the hammer pad to drive the probe rod 1 to be inserted into a natural foundation to be detected. The foundation bearing capacity detection device further comprises a triangular bracket 3 and a sleeve 31, wherein the sleeve 31 is arranged at the top of the triangular bracket 3, the inner diameter of the sleeve 31 is the same as the outer diameter of the upper end of the probe rod 1, and the sleeve 31 is sleeved on the probe rod 1. Install carriage release lever 4, lifting unit and spacing subassembly on sleeve 31, carriage release lever 4 slides on sleeve 31 along vertical direction, and carriage release lever 4 all has the installation in sleeve 31 both sides, and the lower extreme of two carriage release levers 4 is just right with the both sides handle of cross hammer 2 respectively. The driving lever 41 is rotatably installed at the lower end of the moving lever 4, and in a natural state, the driving lever 41 is perpendicular to the moving lever 4, and at this time, the driving lever 41 is perpendicular to handles at two sides of the hammer 2. The lifting component is connected with the moving rod 4 and used for driving the moving rod 4 to move along the vertical direction, the limiting component is installed on the moving rod 4 and connected with the deflector rod 41, the limiting component enables the deflector rod 41 to always have a trend of rotating to be perpendicular to the moving rod 4, and meanwhile the limiting component is used for limiting and fixing the deflector rod 41.
When the light-duty dynamic sounding test is carried out, the probe rod 1 is installed to the foundation to be detected, the sleeve 31 on the triangular bracket 3 is installed and sleeved to the upper end of the probe rod 1, and the probe rod 1 is fixed through the triangular bracket 3 and kept in a vertical state all the time. Simultaneously, the position of the tripod 3 is adjusted so that the two moving rods 4 on the sleeve 31 are opposite to the handles on the two sides of the penetrating hammer 2 on the probe rod 1. The lifting assembly drives the moving rod 4 to move downwards, so that the deflector rod 41 is contacted with handles on two sides of the through hammer 2, and the deflector rod 41 rotates along with the continuous downward movement of the moving rod 4 until the deflector rod 41 moves to the position below the handles of the through hammer 2. At this time, the shift lever 41 is kept perpendicular to the moving lever 4 under the action of the limiting assembly, and the limiting assembly limits and fixes the moving lever 4 at the current position. The lifting assembly drives the moving rod 4 to move upwards, so that the through hammer 2 above the deflector rod 41 is driven to move upwards, after the through hammer 2 moves to the designed height, the limiting assembly releases the limiting fixation of the deflector rod 41, and the through hammer 2 freely falls under the action of gravity and hammers the probe rod 1 to complete one-time hammering. And then repeating the process, driving the penetrating hammer 2 to hammer the probe rod 1 for a plurality of times, and adjusting the hammering evaluation rate of the penetrating hammer 2 by adjusting the speed of the lifting assembly driving the moving rod 4 to move.
Referring to fig. 1, the lifting assembly includes a rodless electric cylinder 5, a cylinder body of the rodless electric cylinder 5 is fixedly mounted on a sleeve 31, two rodless electric cylinders 5 are mounted on the sleeve 31, the cylinder bodies of the two rodless electric cylinders 5 extend downwards along the vertical direction, the two rodless electric cylinders 5 are opposite to two moving rods 4, and the moving rods 4 are fixedly connected to a sliding table of the rodless electric cylinder 5. The two rodless cylinders 5 are synchronously started, so that the two movable rods 4 are driven to synchronously move.
Referring to fig. 2 and 3, the limiting assembly includes a rotation shaft 61, a torsion spring 62, a locking member and an unlocking member, a receiving cavity 42 is formed at the lower end of the moving rod 4 towards the handle of the through hammer 2, the receiving cavity 42 penetrates through the moving rod 4, the rotation shaft 61 is fixedly mounted in the middle of the receiving cavity 42, the shifting rod 41 is rotatably mounted in the moving rod 4 through the rotation shaft 61, the length of the shifting rod 41 is smaller than that of the receiving cavity 42, and the shifting rod 41 can rotate 360 ° in the receiving cavity 42. The torsion spring 62 is sleeved at both ends of the rotating shaft 61, one end of the torsion spring 62 is fixedly connected with the moving rod 4, the other end of the torsion spring 62 is fixedly connected with the deflector rod 41, and the torsion spring 62 enables the deflector rod 41 to always have a trend of rotating to be perpendicular to the moving rod 4. The locking piece and the unlocking piece are arranged on the inner wall of the accommodating cavity 42, and the locking piece is connected with the movable rod 4 and used for limiting and fixing the movable rod 4; the unlocking member is used for releasing the limit of the locking member to the moving rod 4, so that the shift lever 41 can freely rotate.
The torsion spring 62 makes the deflector rod 41 always have a tendency of rotating to be perpendicular to the moving rod 4, so that in a normal state, the deflector rod 41 is perpendicular to the moving rod 4, and when the moving rod 4 moves downwards, the deflector rod 41 contacts with the handle of the through hammer 2 and rotates, and as the moving rod 4 continues to move downwards, the deflector rod 41 moves to be separated from the through hammer 2 and rotates to be perpendicular to the moving rod 4 under the action of the torsion spring 62, so that the through hammer 2 is conveniently driven to lift subsequently.
Referring to fig. 3, the locking member includes a steel ball 63 and a ferrule 64, and locking grooves 43 having a right trapezoid cross section are formed on both side walls of the accommodating cavity 42, and the distance from the bottom wall of the upper end of the locking groove 43 to the deflector rod 41 is greater than the distance from the bottom wall of the lower end of the locking groove 43 to the deflector rod 41, i.e. the upper end of the locking groove 43 is deep and the lower end of the locking groove 43 is shallow. The cutting ferrule 64 is the annular cover that both ends are connected with the slide bar, all offered on the both sides lateral wall of locking groove 43 with slide bar assorted bar groove, steel ball 63 joint is in cutting ferrule 64, and steel ball 63 can freely rotate can't break away from cutting ferrule 64 simultaneously, and cutting ferrule 64 slides through the bar groove of both sides and sets up between the both sides lateral wall of locking groove 43, and the length direction of bar groove is on a parallel with locking groove 43's diapire. While one side of the steel ball 63 always keeps abutting against the bottom wall of the locking groove 43. The unlocking member is used for driving the steel ball 63 to move upwards along the bottom wall of the locking groove 43.
Referring to fig. 3, a spring 65 is mounted on the ferrule 64, and an upper end of the spring 65 extends upward along a bottom wall of the locking groove 43 and is connected to a top side wall of the locking groove 43. When the spring 65 is in a natural state, the outer side of the steel ball 63 is flush with the inner wall of the accommodating chamber 42. The unlocking member includes an electromagnet 66, and the electromagnet 66 is embedded and mounted on the top side wall of the locking groove 43.
The torsion spring 62 keeps the lever 41 in a tendency to rotate perpendicular to the travel bar 4 when the side of the lever 41 abuts against the steel ball 63. At this time, when the moving rod 4 moves downward, the shift lever 41 rotates upward and toward the moving rod 4 under the blocking of the handle of the hammer 2, the shift lever 41 has a tendency to drive the steel balls 63 to move upward, and the depth of the upper end of the locking groove 43 is deep, so that the tendency between the two steel balls 63 has an increasing tendency, and the shift lever 41 can rotate freely. When the shift lever 41 moves below the handle of the through hammer 2, the moving lever 4 moves upwards at this time, the shift lever 41 has a tendency to rotate downwards towards the moving lever 4 under the action of the gravity of the through hammer 2, at this time, the shift lever 41 drives the two steel balls 63 to move downwards, and a gap between the two steel balls 63 has a tendency to decrease, so that the shift lever 41 is clamped and fixed, and the shift lever 41 can drive the through hammer 2 to move upwards. When the through hammer 2 is lifted in place, the electromagnet 66 is started, the electromagnet 66 generates an adsorption force on the steel balls 63, the steel balls 63 are driven to move upwards along the locking groove 43, at the moment, the gap between the two steel balls 63 is increased, the deflector rod 41 rotates downwards under the action of gravity of the through hammer 2, and the through hammer 2 is separated from the deflector rod 41 and falls freely.
Referring to fig. 3, a groove 411 is formed in the upper plane of the lever 41 opposite to the handle of the hammer 2. When the poking rod 41 drives the core through hammer 2 to lift up, the handle of the core through hammer 2 is positioned in the groove 411, so that the core through hammer 2 is prevented from rotating to fall off from the poking rod 41 in the lifting process.
The implementation principle of the foundation bearing capacity detection device provided by the embodiment of the utility model is as follows: when a light power penetration test is carried out, the probe rod 1 is installed at a foundation to be detected, the triangular bracket 3 is installed outside the probe rod 1, the lifting assembly drives the moving rod 4 to move downwards, so that the deflector rod 41 is in contact with handles on two sides of the through hammer 2, and the deflector rod 41 rotates along with the continued downward movement of the moving rod 4 until the deflector rod 41 moves below the handles of the through hammer 2; at this time, the shift lever 41 rotates to be perpendicular to the moving lever 4 under the action of the torsion spring, and meanwhile, the locking member limits and fixes the moving lever 4 at the current position; the rodless electric cylinder 5 drives the moving rod 4 to move upwards, so that the penetrating hammer 2 above the deflector rod 41 is driven to move upwards, after the penetrating hammer 2 moves to the designed height, the unlocking piece releases the limiting and fixing of the deflector rod 41, and the penetrating hammer 2 drives the deflector rod 41 to rotate under the action of gravity and then freely drops and hammers the probe rod 1 to complete one-time hammering; repeating the above flow, hammering the probe rod 1 for a plurality of times, and completing the dynamic sounding test.
Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a foundation bearing capacity detection device, includes probe rod (1) and cross core hammer (2), its characterized in that: still include tripod (3) and sleeve (31), sleeve (31) set up at tripod (3) top, just sleeve (31) cover is established outside probe rod (1), be provided with movable rod (4), lifting unit and spacing subassembly on sleeve (31), movable rod (4) are along vertical direction sliding setting on sleeve (31), movable rod (4) lower extreme rotation is provided with driving lever (41), lifting unit is connected and is used for driving movable rod (4) to remove along vertical direction, spacing subassembly sets up on movable rod (4) and is connected with driving lever (41), spacing subassembly makes driving lever (41) have the trend of rotation to perpendicular to movable rod (4) all the time, just spacing subassembly still is used for carrying out spacing fixedly to driving lever (41).
2. The foundation load bearing capacity detection device according to claim 1, wherein: the movable rods (4) are arranged on two sides of the sleeve (31), and the two movable rods (4) are opposite to handles on two sides of the through hammer (2) respectively.
3. The foundation load bearing capacity detection device according to claim 1, wherein: the lifting assembly comprises a rodless electric cylinder (5), the rodless electric cylinder (5) is vertically arranged on the sleeve (31), and the movable rod (4) is connected to the sliding table of the rodless electric cylinder (5).
4. The foundation load bearing capacity detection device according to claim 1, wherein: the limiting assembly comprises a rotating shaft (61), a torsion spring (62), a locking piece and an unlocking piece, wherein the lower end of the moving rod (4) is provided with a containing cavity (42), the rotating shaft (61) is fixedly arranged in the middle of the containing cavity (42), the shifting rod (41) is rotatably arranged in the moving rod (4) through the rotating shaft (61), the torsion spring (62) is sleeved on the rotating shaft (61) and is connected with the shifting rod (41), the torsion spring (62) enables the shifting rod (41) to always have a trend of rotating to be perpendicular to the moving rod (4), the locking piece and the unlocking piece are all arranged on the inner wall of the containing cavity (42), and the locking piece is used for limiting and fixing the moving rod (4) and is used for releasing the limiting of the locking piece on the moving rod (4).
5. The foundation load bearing capacity detection device of claim 4, wherein: the locking piece comprises steel balls (63) and a clamping sleeve (64), a locking groove (43) with a right trapezoid cross section is formed in the side wall of the accommodating cavity (42), the distance from the bottom wall of the upper end of the locking groove (43) to the deflector rod (41) is larger than the distance from the bottom wall of the lower end of the locking groove (43) to the deflector rod (41), the clamping sleeve (64) is an annular sleeve with sliding rods connected to the two ends, the steel balls (63) are clamped in the clamping sleeve (64), the clamping sleeve (64) is arranged between the two side walls of the locking groove (43) in a sliding mode along the direction parallel to the bottom wall of the locking groove (43), one side of the steel balls (63) is always kept in contact with the bottom wall of the locking groove (43), and the unlocking piece is used for driving the steel balls (63) to move upwards along the bottom wall of the locking groove (43).
6. The foundation load bearing capacity detection device according to claim 5, wherein: the clamping sleeve (64) is provided with a spring (65), and the other end of the spring (65) is connected with the top side wall of the locking groove (43).
7. The foundation load bearing capacity detection device of claim 6, wherein: the unlocking piece comprises an electromagnet (66), and the electromagnet (66) is embedded at the top of the locking groove (43).
8. The foundation load bearing capacity detection device according to claim 1, wherein: the deflector rod (41) is provided with a groove (411) opposite to the handle of the through hammer (2).
CN202321558990.1U 2023-06-19 2023-06-19 Foundation bearing capacity detection device Active CN219908869U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321558990.1U CN219908869U (en) 2023-06-19 2023-06-19 Foundation bearing capacity detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321558990.1U CN219908869U (en) 2023-06-19 2023-06-19 Foundation bearing capacity detection device

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CN219908869U true CN219908869U (en) 2023-10-27

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CN202321558990.1U Active CN219908869U (en) 2023-06-19 2023-06-19 Foundation bearing capacity detection device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118029350A (en) * 2024-04-11 2024-05-14 水发金水建设工程有限公司 Device and method for detecting bearing capacity of hydraulic engineering foundation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118029350A (en) * 2024-04-11 2024-05-14 水发金水建设工程有限公司 Device and method for detecting bearing capacity of hydraulic engineering foundation

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