CN111913212A - Portable transverse wave excitation device - Google Patents
Portable transverse wave excitation device Download PDFInfo
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- CN111913212A CN111913212A CN202010932627.6A CN202010932627A CN111913212A CN 111913212 A CN111913212 A CN 111913212A CN 202010932627 A CN202010932627 A CN 202010932627A CN 111913212 A CN111913212 A CN 111913212A
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- vibration
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- conduction mechanism
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/143—Generating seismic energy using mechanical driving means, e.g. motor driven shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/04—Details
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- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a portable transverse wave excitation device, and relates to the technical field of seismic exploration; the vibration plate comprises a mounting plate, an embedded part, a first vibration conduction mechanism, a second vibration conduction mechanism and a knocking base plate; the embedded part is arranged on the bottom surface of the mounting plate and is vertically embedded into the soil body; the mounting plate is vertical to the embedded part; the first vibration conduction mechanism is arranged on the top surface of the mounting plate; the second vibration conduction mechanism is arranged on the top surface of the mounting plate and is connected with the first vibration conduction mechanism; the knocking base plate is arranged on the second vibration conduction mechanism. The embedded part is vertically embedded into the stratum, the mounting plate is parallel to the ground, the base plate is knocked by hammering, vibration is transmitted into a soil body sequentially through the second vibration transmission mechanism, the first vibration transmission mechanism, the base plate and the embedded part, transverse waves can be generated through the embedded part, the vibration transmission effect is good, heavy objects do not need to be stacked on the upper part of the base plate, the base plate is convenient to carry and is convenient to construct continuously on site, the construction efficiency is improved, and safety accidents are avoided.
Description
Technical Field
The invention relates to the technical field of seismic exploration, in particular to a portable transverse wave excitation device.
Background
Seismic exploration is widely applied in engineering exploration as a traditional geophysical exploration means, and is mainly used for finding out the thickness and layering of a fourth-series covering layer, bedrock burial depth and bedrock surface morphology, the position, scale, attitude, trend and the like of an existing unfavorable geological structure. The seismic exploration comprises longitudinal wave exploration and transverse wave exploration, wherein shallow transverse wave velocity in the transverse wave exploration is 1/5-3/5 of longitudinal wave velocity, and the shallow transverse wave has high resolution due to the advantages of low velocity, short wavelength and the like.
In the seismic exploration technology, the shallow transverse wave seismic exploration method can find out the position of shallow fracture, divide different engineering geological partitions on a section, determine the geological structure of the upper unconsolidated layer of the fourth system, provide reliable geological basis for urban earthquake-proof planning, seismic safety evaluation, architectural engineering site selection, foundation treatment and the like, and is an effective method for shallow geological exploration and other engineering geological exploration in cooperation with drilling. Shallow shear waves are generated by shear stress, and therefore the excitation shear wave should try to generate such shear stress.
There are many existing transverse wave excitation means used in engineering investigation, such as pressing a heavy automobile on a wood board embedded in a ground groove, and transversely knocking two ends of the wood board to generate transverse shearing force to excite transverse waves; or a heavy object with the weight of more than 100KG is arranged on the ground, and the transverse wave is knocked and excited; or a person stands on a heavy object or an iron block and is hammered transversely to generate transverse waves.
In the mode, the automobile or the human body needs to be pressed on a hammered object, or a heavy object needs to be hammered directly, so that the field continuous construction operation is not facilitated, and the construction efficiency is low; moreover, the human body is used for excitation, and safety accidents are easy to occur under the condition of continuous multi-point operation.
Disclosure of Invention
The invention aims to provide a portable transverse wave excitation device, which solves the problems that the existing excitation mode is not beneficial to field continuous construction operation, the construction efficiency is low, and safety accidents are easy to occur.
In order to solve the technical problems, the invention provides a portable transverse wave excitation device, which has the following specific technical scheme:
a portable transverse wave excitation device comprises a mounting plate, an embedded part, a first vibration conduction mechanism, a second vibration conduction mechanism and a knocking base plate; the embedded part is arranged on the bottom surface of the mounting plate and is vertically embedded into the soil body; the mounting plate is vertical to the embedded part and is parallel to the ground; the first vibration conduction mechanism is arranged on the top surface of the mounting plate; the second vibration conduction mechanism is arranged on the top surface of the mounting plate and is connected with the first vibration conduction mechanism; the knocking base plate is arranged on the second vibration conduction mechanism.
Furthermore, the first vibration conduction mechanism comprises a plurality of first vibration transmission plates which are arranged in parallel, and two adjacent first vibration transmission plates are connected with each other or arranged at intervals.
Further, the thickness of the first shock-absorbing plate gradually increases from one end far away from the mounting plate to one end close to the mounting plate.
Furthermore, a through hole for the rope to pass through is formed in the first vibration transmission plate.
Furthermore, the second vibration conduction mechanism comprises two second vibration transmission plates which are respectively arranged at two opposite ends of the mounting plate and connected with the first vibration conduction mechanism; the two knocking base plates are correspondingly arranged on the two second vibration transmission plates one by one.
Further, the second vibration transmission plate is obliquely arranged on the mounting plate towards the first vibration transmission mechanism.
Furthermore, an included angle formed by the second vibration transmission plate and the mounting plate is 45-65 degrees.
Further, the embedded part comprises a plurality of ground grabbing nails arranged at intervals.
Further, grab the ground nail and be the multirow, the multirow grab ground nail even interval and set up, and every one row is a plurality of grab ground nail even interval and set up.
Further, still include hammering mechanism, hammering mechanism with strike the backing plate adjacent or install on the mounting panel, and be used for hammering strike the backing plate.
According to the portable transverse wave excitation device provided by the invention, after the installation is finished, the embedded part is vertically embedded into the stratum, the installation plate is vertical to the embedded part and is parallel to the ground, the vibration is transmitted to the soil body sequentially through the second vibration transmission mechanism, the first vibration transmission mechanism, the base plate and the embedded part by hammering and knocking the base plate, transverse waves can be quickly generated through the vertical embedded part, the vibration transmission effect is good, a heavy object does not need to be piled on the upper part, the portable transverse wave excitation device is convenient to carry and is convenient for continuous construction on site, the construction efficiency is improved, and safety accidents are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a portable transverse wave excitation device according to an embodiment of the present invention;
FIG. 2 is a bottom view of a portable shear wave excitation device provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an installation process of the portable transverse wave excitation device according to an embodiment of the present invention;
fig. 4 is a schematic diagram (one) of transverse wave excitation of the portable transverse wave excitation device according to the embodiment of the present invention;
fig. 5 is a schematic diagram (two) of transverse wave excitation of the portable transverse wave excitation device according to the embodiment of the present invention.
Icon:
1-mounting a plate;
2-an embedded part; 21-ground grabbing nails;
3-a first vibration conduction mechanism; 31-a first seismic plate; 311-a via hole;
4-a second vibration conduction mechanism; 41-a second seismic plate;
and 5, knocking the backing plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the present embodiment provides a portable transverse wave excitation device, which includes a mounting plate 1, an embedded portion 2, a first vibration conduction mechanism 3, a second vibration conduction mechanism 4, and a knocking pad 5; the structure preferably adopts metal or alloy materials with good seismic transmission effect, for example, high-grade steel plates are adopted.
The embedded portion 2 of this embodiment is installed in mounting panel 1 bottom surface to with mounting panel 1 mutually perpendicular, embedded portion 2 inserts in the soil body perpendicularly, so that produce the transverse wave, combine shown in figure 3, when the installation, the embedded portion 2 of this embodiment is embedded into the stratum through hammering (or other modes), embedded portion 2 and mounting panel 1 are preferred to be welded or integrated into one piece, make connection stability and vibrations transmission effect between them obtain guaranteeing.
The first vibration conduction mechanism 3 and the second vibration conduction mechanism 4 of the present embodiment are both installed on the top surface of the installation plate 1, and the installation mode can also be welding; the second vibration conduction mechanism 4 of the present embodiment is connected to the first vibration conduction mechanism 3 by welding, and the first vibration conduction mechanism 3 can be understood as a stable structure of the second vibration conduction mechanism 4. The strike plate 5 of this embodiment is mounted on the second shock conducting mechanism 4 by welding or by integral attachment.
When exciting the transverse wave, strike backing plate 5 through the hammering will shake and transmit the soil body by second vibrations conduction mechanism 4, first vibrations conduction mechanism 3, backing plate and embedded portion 2 in proper order in, because embedded portion 2 inserts the soil body perpendicularly, can produce the transverse wave rapidly. The structure has a good shock transmission effect, the upper part of the structure does not need to be piled with heavy objects, the weight of the device is light, the structure is convenient to carry and can be continuously constructed on site, the construction efficiency is low, and the safety accidents are avoided.
Referring to fig. 1, the first vibration conduction mechanism 3 includes a plurality of first vibration plates 31 arranged in parallel, and two adjacent first vibration plates 31 are connected or spaced from each other, and preferably two adjacent first vibration plates 31 are connected to each other to improve the conduction performance.
As a preferred embodiment of the present embodiment, in order to improve the structural strength and the vibration transmission performance of the mounting plate 1, the thickness of the first vibration transmission plate 31 of the present embodiment is gradually increased from the end far away from the mounting plate 1 to the end near to the mounting plate 1, that is, the cross-sectional shape of the first vibration transmission plate 31 is a trapezoid, and specifically, may be an isosceles trapezoid.
As a preferred embodiment of this embodiment, the portable transverse wave excitation device of this embodiment may further include a rope (not shown in the drawings), and correspondingly, the first vibration plate 31 of this embodiment is provided with a plurality of through holes 311 for the rope to pass through, and the number of the through holes 311 may be a plurality of the through holes 311, so that the rope can form a closed structure by passing through the through holes 311, so as to be used for transporting the portable transverse wave excitation device of this embodiment, thereby improving the portability of the device.
As a preferred embodiment of the present embodiment, the second vibration conduction mechanism 4 of the present embodiment includes two second vibration transmission plates 41, the two second vibration transmission plates 41 are respectively installed at two opposite ends of the mounting plate 1, wherein one second vibration transmission plate 41 is connected to one end of the first vibration conduction mechanism 3, that is, to one end of the plurality of first vibration transmission plates 31; another second vibration transmission plate 41 is connected to the other end of the first vibration transmission mechanism 3, that is, to the other ends of the plurality of first vibration transmission plates 31; the two knock-up base plates 5 are mounted on the two second shock transmitting plates 41 in one-to-one correspondence.
As shown in fig. 4 and 5, the second vibration conduction mechanism 4 with such a structure can respectively excite the transverse waves in two directions 180 degrees apart from each other, and respectively generate two S waves 180 degrees out of phase, so as to improve the excitation efficiency.
As a preferred embodiment of the present embodiment, the second vibration transmission plate 41 of the present embodiment is obliquely installed on the mounting plate 1 toward the direction of the first vibration transmission mechanism 3, so that an included angle can be formed between the second vibration transmission plate 41 and the mounting plate 1, and the included angle is determined through experiments according to the compactness of the stratum; and the two second vibration transmission plates 41 are made to be of a symmetrical structure.
As a preferred embodiment of this embodiment, the inventor finds, through experiments, that when the included angle formed between the second seismic transmitting plate 41 and the mounting plate 1 is 45 ° to 65 °, the second seismic transmitting plate can adapt to most of the stratums and has good applicability.
As a preferred embodiment of the present embodiment, the embedded part 2 of the present embodiment includes a plurality of ground-grasping nails 21 arranged at intervals, in order to ensure the stability of installation and the uniformity of conduction, the ground-grasping nails 21 of the present embodiment are in a plurality of rows (for example, three rows in the drawing), the plurality of ground-grasping nails 21 of the plurality of rows are arranged at regular intervals, and the plurality of ground-grasping nails 21 of each row are arranged at regular intervals.
Of course, the structure of the embedded part 2 of the present embodiment is not limited to this, and for example, holes may be drilled in the mounting plate 1, and the whole device may be fixed to the ground by long nails (this structure is not shown in the present embodiment).
Based on the above structure, the portable transverse wave excitation device of the present embodiment further includes a hammering mechanism (not shown in the figure), which is separated from and adjacent to the hammering cushion plate 5, or is directly mounted on the mounting plate 1, and is used for hammering the hammering cushion plate 5; the structural style of the hammering mechanism of this embodiment can imitate the hammering structure of the existing pile driver and design, and the motor or the oil cylinder drives the hammer body to act, and this embodiment will not be described too much.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A portable transverse wave excitation device is characterized by comprising a mounting plate, an embedded part, a first vibration conduction mechanism, a second vibration conduction mechanism and a knocking base plate;
the embedded part is arranged on the bottom surface of the mounting plate and is vertically embedded into the soil body;
the mounting plate is vertical to the embedded part and is parallel to the ground;
the first vibration conduction mechanism is arranged on the top surface of the mounting plate;
the second vibration conduction mechanism is arranged on the top surface of the mounting plate and is connected with the first vibration conduction mechanism;
the knocking base plate is arranged on the second vibration conduction mechanism.
2. The portable shear wave excitation device of claim 1, wherein said first vibration conduction mechanism comprises a plurality of first vibration conduction plates disposed in parallel, and two adjacent first vibration conduction plates are connected to each other or spaced apart from each other.
3. The portable shear wave excitation device of claim 2, wherein said first seismic plate has a thickness that gradually increases from an end distal to said mounting plate to an end proximal to said mounting plate.
4. The portable transverse wave excitation device of claim 2, wherein the first vibration plate is provided with a through hole for a rope to pass through.
5. The portable transverse wave excitation device according to claim 1, wherein the second vibration conduction mechanism includes two second vibration transmission plates, the two second vibration transmission plates are respectively installed at opposite ends of the installation plate and connected to the first vibration conduction mechanism; the two knocking base plates are correspondingly arranged on the two second vibration transmission plates one by one.
6. The portable shear wave excitation device of claim 5, wherein said second vibration transmission plate is mounted on said mounting plate obliquely to the direction of said first vibration transmission mechanism.
7. The portable transverse wave excitation device according to claim 6, wherein the angle formed by the second vibration transmission plate and the mounting plate is 45 ° to 65 °.
8. The portable shear wave excitation device of claim 1, wherein said embedded portion comprises a plurality of ground-engaging spikes spaced apart.
9. The portable shear wave excitation device of claim 8, wherein said ground-grasping nails are arranged in a plurality of rows, said plurality of rows of ground-grasping nails are evenly spaced, and a plurality of said ground-grasping nails of each row are evenly spaced.
10. A portable shear wave excitation device according to any one of claims 1 to 9 further comprising a hammering mechanism adjacent to or mounted on the mounting plate for hammering the strike plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010932627.6A CN111913212A (en) | 2020-09-08 | 2020-09-08 | Portable transverse wave excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010932627.6A CN111913212A (en) | 2020-09-08 | 2020-09-08 | Portable transverse wave excitation device |
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| Publication Number | Publication Date |
|---|---|
| CN111913212A true CN111913212A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010932627.6A Pending CN111913212A (en) | 2020-09-08 | 2020-09-08 | Portable transverse wave excitation device |
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| CN (1) | CN111913212A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987093A (en) * | 2021-02-07 | 2021-06-18 | 陕西省水利电力勘测设计研究院勘察分院 | Single-hole shear wave testing method |
| 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 |
-
2020
- 2020-09-08 CN CN202010932627.6A patent/CN111913212A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987093A (en) * | 2021-02-07 | 2021-06-18 | 陕西省水利电力勘测设计研究院勘察分院 | Single-hole shear wave testing method |
| 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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