CN215180927U - Ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test - Google Patents
Ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test Download PDFInfo
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- CN215180927U CN215180927U CN202121712436.5U CN202121712436U CN215180927U CN 215180927 U CN215180927 U CN 215180927U CN 202121712436 U CN202121712436 U CN 202121712436U CN 215180927 U CN215180927 U CN 215180927U
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Abstract
The utility model discloses a ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test, which comprises a winged excitation plate groove, a pad plate fixer, a pad plate, a detector fixing groove and a detector; the winged shock excitation plate groove is a cuboid without a top cover at the upper part, and comprises a pair of main plates in the length direction, a bottom plate and two side plates in the width direction, wherein the two side plates extend downwards to form two side wing plates with isosceles triangle-shaped lower parts and protruding out of the bottom surface of the bottom plate; the pad plate fixer consists of a round rod, a spring sleeved on the round rod and a clamping plate, wherein a spring limiting head fixed at one end of the round rod is fixed at the other end of the round rod; the detector fixing groove is fixed on the center of the bottom plate in the excitation plate groove with the wings, and the detector is fixed on the detector fixing groove in a coupling mode. The problem that the excitation board is not tightly attached to the ground in the original method is solved, and the problem of weight in single-hole wave velocity tests in complex terrain fields such as mountainous areas is solved.
Description
Technical Field
The utility model relates to a geotechnical engineering reconnaissance field, in particular to a bayonet non-ballast transverse wave excitation device in ground for haplopore wave speed test.
Background
In the field of geotechnical engineering investigation, single-hole wave velocity testing is a commonly used in-situ testing means for testing transverse wave velocity of a rock-soil layer. According to the requirements of relevant specifications, in the process of the construction project in the previous exploration, a single-hole wave velocity test is carried out to measure the transverse wave (shear wave) velocity of the rock-soil stratum, the equivalent shear wave velocity of the site is calculated according to the transverse wave velocity values of the rock-soil layers, the site category is further judged, and a parameter basis is provided for building earthquake resistance analysis and checking calculation.
The single-hole method wave speed test adopts a board weight tapping method, namely, a square strip-shaped board is horizontally placed on the ground surface, the connecting line of the center of the board and an orifice is kept vertical to the length direction of the board, then a heavy object (more than 500kg) is pressed on the board, or a vehicle is used for pressing wheels of the board on the board, then a hammer is used for tapping two ends of the board, so that the board is rubbed with the ground, and the soil layer is excited to vibrate to generate transverse waves. The difficulty of the transverse wave excitation mode is mainly the realization of the weight and the effective guarantee of the close fit of the excitation batten and the ground. If the test drilling hole is located in a mountainous area with complex terrain, the weight is difficult to realize, and the overlong batten is inconvenient to carry. Particularly, due to the ground condition, the wood board is not tightly attached to the ground, so that sufficient transverse waves with energy cannot be obtained, and the test effect and the test capability are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a bayonet non-ballast transverse wave excitation device in ground for haplopore wave speed test is provided, improves the excitation effect of transverse wave and increases the effective energy of transverse wave, solves the ballast problem in the complicated place haplopore method wave speed test of topography such as mountain area simultaneously.
In order to solve the technical problem, the utility model discloses a technical scheme is: a ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity testing comprises a winged excitation plate groove, a pad plate fixer, a pad plate, a detector fixing groove and a detector; the winged shock excitation plate groove is a cuboid without a top cover at the upper part, and comprises a pair of main plates in the length direction, a bottom plate and two side plates in the width direction, wherein the two side plates extend downwards to form two side wing plates with isosceles triangle-shaped lower parts and protruding out of the bottom surface of the bottom plate; the pad plate fixer consists of a round rod, a spring sleeved on the round rod and a clamping plate, wherein a spring limiting head fixed at one end of the round rod is fixed at the other end of the round rod; the number of the pad fixing devices is 4, the round rods penetrate through the circular holes in the wing plates to penetrate through the wing plates, the clamping plates are located on the outer sides of the wing plates, the spring and the limiting heads of the spring are located inside the wing-provided vibration exciting plate grooves, two pad plates are respectively clamped on the outer sides of the wing plates at two ends of the wing-provided vibration exciting plate grooves through the telescopic round rods when telescopic use is achieved, the detector fixing grooves are fixed in the centers of the bottom plates in the wing-provided vibration exciting plate grooves, and the detectors are fixed on the detector fixing grooves in a coupling mode.
The detector is fixed on the detector fixing groove in a screwing or sticking mode in a coupling mode.
The excitation plate groove with the wings and the backing plate fixer are made of steel, and the backing plate is made of wood or rubber.
The spring limiting head and the clamping plate are welded on the round rod.
The clamping plate is welded on the round rod, and the spring limiting head is screwed on the round rod through threads.
The utility model has the advantages that: the utility model discloses a device mainly is steel material processing, and excitation plate length, width can be according to site conditions and convenient to carry needs, and the adjustment size is added man-hour in the preparation, and pterygoid lamina length and awl point angle also can be according to the reasonable adjustment of surface soil layer condition. The device is of a driving type, the problem that an original method is not tight in attaching of an excitation wood board and the ground is solved, and the problem of heaving in single-hole wave velocity tests of terrain complex sites such as mountainous areas is solved. Therefore, the effect of transverse wave excitation is improved, the energy of the transverse wave is enhanced, and the problem of weight is solved. The device is used for multiple times in practical projects, and the effect is good.
Drawings
Fig. 1 is a schematic perspective view of the ground-inserted non-ballast transverse wave excitation device for single-hole wave velocity testing of the present invention.
Fig. 2 is a three-dimensional schematic view of a winged excitation plate groove of the ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity testing of the present invention.
Fig. 3 is a structural plan view of the ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity testing of the present invention.
Fig. 4 is a three-dimensional schematic view of the pad fixer of the ground-insertion type non-ballast transverse wave excitation device for single-hole wave velocity testing of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-4, the ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test of the present invention comprises a winged excitation plate groove 1, a backing plate fixer 2, a backing plate 3, a detector fixing groove 4 and a detector 5; the winged vibration exciting plate groove 1 is a cuboid without a top cover at the upper part, and comprises a pair of main plates 11 in the length direction, a bottom plate 14 and two side plates in the width direction, wherein the two side plates extend downwards to form two side wing plates 12 with isosceles triangle-shaped lower parts and protruding out of the bottom surface of the bottom plate 14, and two round holes 13 are formed at two ends of the lower parts of the two side wing plates 12 in the winged vibration exciting plate groove 1; the backing plate fixer 2 consists of a round rod 21, a spring 22 sleeved on the round rod, a spring limiting head 23 fixed at one end of the round rod and a clamping plate 24 fixed at the other end of the round rod; the number of the pad fixing devices 2 is 4, the round rod 21 penetrates through the wing plate through the round hole 13 on the wing plate, the clamping plate 24 is located on the outer side of the wing plate 12, the spring 22 and the spring limiting head 23 are located inside the wing excitation plate groove 1, when the telescopic application is realized, the two pad plates 3 are respectively clamped on the outer sides of the wing plates 12 at two ends of the wing excitation plate groove through the telescopic round rod 21, the detector fixing groove 4 is fixed on the center of the bottom plate in the wing excitation plate groove 1, and the detector 5 is fixed on the detector fixing groove 4 in a coupling mode.
The detector 5 is fixed on the detector fixing groove 4 in a coupling mode in a screwing or sticking mode.
The winged vibration exciting plate groove 1 and the backing plate fixer 2 are made of steel, and the backing plate 3 is made of wood or rubber.
The spring limiting head 23 and the clamping plate 24 are welded on the round rod 21. Or the clamping plate 24 is welded on the round rod 21, and the spring limiting head 23 is screwed on the round rod 21.
When the wing-mounted vibration excitation plate trough is used, the wing-mounted vibration excitation plate trough 1 is transversely arranged on the ground, the tip part of the wing plate 12 is vertically downward, and the wing plate 12 is inserted into the ground in a hammering or static pressure mode. Then the backing plates 3 on the backing plate fixing devices 2 at the two ends of the wing excitation plate groove are hammered, so that the wing plates 12 can excite the ground soil body to generate transverse waves to be transmitted in the stratum. The detector fixing groove 4 is used for fixing the detector 5 in the test process, and the detector 5 can vibrate to generate signals when base plates at two ends of the vibration exciting plate are knocked, so that the triggering and timing effects are achieved.
In the embodiment, the plate body of the excitation plate with the wings is in a groove shape, the lower part of the wing plate is in an isosceles triangle shape and can be formed by welding steel plates with the thickness of 5mm +/-5 mm, the length of the plate body of the excitation plate groove 1 with the wings is controlled within the range of 1.0-2.0 m, and the width of the plate body is controlled within the range of 20cm +/-5 cm; the width of the wing plate is matched with the width of the plate body, and the height of the triangle of the wing plate is controlled to be 30cm +/-5 cm.
The backing plate fixer 2 consists of a round rod 21, a spring 22, a clamping plate 24 and a spring limiting head 23, wherein the round rod 21 penetrates through the wing plate 12 through a round hole 13 on the wing plate to realize extension, the round hole 13 is positioned at two ends of the wing plate in the width direction in the groove of the excitation plate, and the backing plate (made of wood or rubber) is clamped at two ends of the excitation plate with the wings through the round rod when the backing plate fixer is used.
The round rod is a steel rod piece with the diameter of about 1.0cm, and the spring penetrates through the rod piece and is arranged on the inner side of the wing plate of the excitation plate with the wings; the pad plate fixer clamp plate is welded on the round bar by a steel plate with the thickness of 10cm multiplied by 5cm multiplied by 0.5cm (which can be properly adjusted), and is arranged outside the excitation plate groove with the wings; the spring limiting head is a circular steel plate, is welded in the spring rod, and has a diameter slightly thicker than that of the spring rod.
The backing plate is made of wood or rubber, the size of the plate can be 40cm multiplied by 10cm multiplied by 1.0cm (can be properly adjusted), the backing plate is positioned between the wing plate of the excitation plate with the wing and the clamping plate of the backing plate fixing device, and the backing plates at two ends of the excitation plate with the wing are knocked when transverse waves are excited, so that the excitation effect is enhanced, and the impact noise is reduced.
The utility model discloses the inseparable problem of excitation plank and ground laminating in the device main solution original method to solve the heavy difficult problem of topography complicated place excitation board such as mountain area. This device is bayonet non-ballast transverse wave excitation device in ground, and the pterygoid lamina that will take wing excitation board during the use is downward towards ground, adopts hammering or static pressure mode to insert the pterygoid lamina into ground, makes it closely laminate with the foundation soil, then installs the wave detector on the wave detector fixed slot, uses plank or rubber slab as the backing plate afterwards, fixes it between backing plate fixer splint and the wing excitation board pterygoid lamina of taking the wing. After the device is installed stably, a tester stands on the winged vibration plate driven into the soil, and the iron hammer is used for knocking the base plates at the two ends of the winged vibration plate, so that the wing plates drive the soil layer to vibrate and generate transverse waves. The device is mainly processed for steel material, and excitation plate length, width can be according to site conditions and convenient to carry needs, and the size is adjusted during processing in the preparation, and pterygoid lamina length and awl point angle also can be rationally adjusted according to surface soil layer condition.
The utility model discloses the device is the bayonet non-ballast transverse wave excitation device in ground, and this device is for driving into the formula, squeezes the device into the soil layer when using promptly, and the inseparable problem of unable assurance excited vibration board and the ground laminating of avoiding like this also need not a large amount of ballast and can accomplish the test, has solved the ballast problem in complicated places of topography such as mountain area.
The above-mentioned embodiments are only used for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, the scope of the present invention should not be limited by the embodiment, that is, all equivalent changes or modifications made by the spirit of the present invention should still fall within the scope of the present invention.
Claims (5)
1. A ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity testing is characterized by comprising a winged excitation plate groove (1), a backing plate fixer (2), a backing plate (3), a detector fixing groove (4) and a detector (5); the winged excitation plate groove (1) is a cuboid without a top cover at the upper part, and comprises a pair of main plates (11) in the length direction, a bottom plate (14) and two side plates in the width direction, wherein the two side plates extend downwards to form two side wing plates (12) with isosceles triangle-shaped lower parts and protrude out of the bottom surface of the bottom plate (14), and two round holes (13) are formed at two ends of the lower parts of the two side wing plates (12) in the winged excitation plate groove (1); the pad plate fixer (2) consists of a round rod (21), a spring (22) sleeved on the round rod, a spring limiting head (23) fixed at one end of the round rod and a clamping plate (24) fixed at the other end of the round rod; the number of the pad fixing devices (2) is 4, the round rod (21) penetrates through the wing plate through the round hole (13) in the wing plate, the clamping plate (24) is located on the outer side of the wing plate (12), the spring (22) and the spring limiting head (23) are located inside the wing-provided vibration exciting plate groove (1), when telescopic use is achieved, the two pad plates (3) are respectively clamped on the outer sides of the wing plates (12) at the two ends of the wing-provided vibration exciting plate groove through the telescopic round rod (21), the detector fixing groove (4) is fixed in the center of the bottom plate in the wing-provided vibration exciting plate groove (1), and the detector (5) is fixed on the detector fixing groove (4) in a coupling mode.
2. The ground-insertion-type non-ballast transverse wave excitation device for the single-hole wave velocity test according to claim 1, wherein the detector (5) is fixed on the detector fixing groove (4) in a coupling manner in a screwing or sticking manner.
3. The ground-insertion-type non-ballast transverse wave excitation device for the single-hole wave velocity test according to claim 1, wherein the winged vibration excitation plate groove (1) and the backing plate fixer (2) are made of steel, and the backing plate (3) is made of wood or rubber.
4. The ground-insertion-type non-ballast shear wave excitation device for the single-hole wave velocity test according to claim 3, wherein the spring stopper (23) and the clamping plate (24) are welded on the round bar (21).
5. The ground-insertion-type non-ballast transverse wave excitation device for the single-hole wave velocity test according to claim 3, wherein the clamping plate (24) is welded on the round bar (21), and the spring limiting head (23) is screwed on the round bar (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121712436.5U CN215180927U (en) | 2021-07-26 | 2021-07-26 | Ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test |
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| CN202121712436.5U CN215180927U (en) | 2021-07-26 | 2021-07-26 | Ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433586A (en) * | 2021-07-26 | 2021-09-24 | 中水北方勘测设计研究有限责任公司 | Ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433586A (en) * | 2021-07-26 | 2021-09-24 | 中水北方勘测设计研究有限责任公司 | Ground insertion type non-ballast transverse wave excitation device for single-hole wave velocity test |
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