CN2821597Y

CN2821597Y - Transverse wave focus collision device

Info

Publication number: CN2821597Y
Application number: CN 200520035443
Authority: CN
Inventors: 赵军; 胡庆春; 余中国; 唐小杰
Original assignee: Sichuan Petroleum Administration Bureau
Priority date: 2005-09-14
Filing date: 2005-09-14
Publication date: 2006-09-27
Anticipated expiration: 2015-09-14

Abstract

The utility model relates to a transverse wave focus collision device for the description of locality of petroleum seismic prospecting, geology locality and building engineering, which belongs to the technical field of device fabrication for exciting transverse wave focus in seismic prospecting. A heavy punch is hung on a triangular framework to collide a collision body arranged on the ground to generate collision transverse wave so as to reach the purpose of exciting the transverse wave. The utility model comprises two triangular frames, a heavy punch and a collision body arranged on the ground and solves the problem that a vehicle-mounted horizontal punch or the transverse wave controllable focus can not be used for exciting the transverse wave at mountain areas in the west. The device utilizes the heavy punch to strike the collision body to obtain the transverse wave, which efficiently solves how to interpret the descending band of speed over the ground; the utility model, which has the advantages of accurate collision directivity and controllable striking strength and has the characteristics of a few components and simple structure, is conveniently carried anywhere for construction.

Description

The shear wave source percussion device

Technical field: a kind of shear wave source percussion device, be used for oil seismic exploration, quality ore deposit and construction work description of locality, belong to the equipment manufacturing technology field that seismic prospecting excites shear wave source.

Background technology: in the prior art, before carrying out the exploration of shear wave exploration and multi-wave seismic, owing to have short texture near the ground, the material band that speed is lower, be called weathering zone, its underpart is that structure is comparatively fine and close, the rock stratum that speed is uprushed, the speed of weathering zone often is gradual change, also there is transversely speed suddenly change, when the earthquake reflection wave by following when propagating into surface layer, its velocity of propagation will be because of producing very big difference on the reflection speed that do not coexist of stratal configuration, the weathering zone and the reduction of speed band that must dock near surface when carrying out static correction are proofreaied and correct respectively, so just need get the speed of weathering zone clear, thickness, current microseismogram log or the little VSP method of generally adopting investigated the earth shallow velocity structure, and with the SH wave reflection method of shear wave exploration, its principle is to cause horizontal thrust on the direction of vertical survey line, to form the SH ripple of downward propagation, arrive ground from reflection back, interface, because of its wave mode simple, incident ray and reflected ray symmetry, help getting clear shallow velocity structure, in order to address this problem, will produce shear wave source on ground; Abroad, because the railway of current train is more, therefore in order to obtain this shear wave, often can be used in place near the earthquake borehole, be parked in train and push down sleeper on the track, the method of breaking sleeper by hammering makes the generation shear wave again, then this shear wave is noted to carry out Treatment Analysis and reach and understand the problem that ground surface reflection wave speed is fallen; At home, reason owing to road, particularly in the mountain area in western part, it is impossible using vehicle-mounted horizontal hammer or shear wave vibrator to excite shear wave, if fall the static correction problem that causes of band and just carry out the multi-wave seismic exploration not understanding face of land speed, the seismic data interpretation of acquisition will be inaccurate.

Summary of the invention: the purpose of this utility model is that a kind of triangular truss suspension weight that utilizes of design clashes into generation bump shear wave to the collision body that is subjected to that is arranged on ground, and reaches the shear wave source percussion device of shear-wave generation.

The utility model is achieved in that the utility model comprises two tripods, a weight and the collision body that is subjected to that is arranged on ground, in two tripods, one is weight support triangle frame 7, a terminal pad is arranged at the top of support triangle frame 7, three supporting legs of the following connection support triangle frame 7 of terminal pad, be provided with two suspension ring 8 that are used to hang weight 5 below terminal pad, weight 5 is hung on the suspension ring 8 by tightrope 6; Another is a traction tripod 2, a terminal pad is also arranged at traction tripod 2 tops, three supporting legs of the following connection traction tripod 2 of terminal pad, below terminal pad, be provided with a pulley 3, end at weight 5 has a link 4, hung over by rope 1 one ends on the link 4 of weight 5, another section is by the pulley 3 of traction tripod 2, and traction tripod 2 is than support triangle frame 7 height; Weight 5 is made of a plektron structure or right cylinder, the weight of weight 5 is subjected to collision body 10 to be the square cylinder structure greater than 30 kilograms, is arranged on the below of support triangle frame 7, be close to by collision body 10 and the ground that needs bump, in being subjected to collision body 10, be provided with the hole 9 of placing inductor; During operation, construct a ground in selected position earlier with an angle of 90 degrees, make and to be close to ground at vertical and two faces of bottom level by collision body 10, vertically fallen by collision body 10 is close on the level ground 12, with support triangle frame 7 be arranged on be subjected to collision body 10 above, then weight 5 is hung on the suspension ring 8 on the support triangle frame 7, make the sagging naturally position of weight 5 reach the middle and upper part that is subjected to collision body 10, then with traction rope 1 bolt on the link 4 of weight 5, set traction tripod 2, again traction rope 1 is passed the pulley 3 of traction tripod 2, inductor is placed in the hole 9 that is subjected to collision body 10 then, connect cable; After preliminary work is all finished, by manually affecting traction rope 1, after reaching constrain height, decontrol traction rope, weight 5 will directly hit along the track that draws from eminence and be subjected to collision body 10, has just excited shear wave when weight 5 hits when being subjected to collision body 10, owing to contacted with the earth by collision body 10, so the shear wave when being clashed into also can be passed to ground 11 and 12, receive this shear wave by instrument and just can obtain to be used to explain that the transformed wave of band falls in ground surface speed.

Advantage of the present utility model and beneficial effect are: when carrying out seismic prospecting in the mountain region, the shear wave that this device utilizes sledgehammer strike obtained by collision body has solved effectively explains that the problem of band falls in face of land speed, the utility model has solved the present domestic problem that does not have special-purpose shear wave that equipment takes place, it is accurate to have crash direction, can control the advantage of hitting dynamics, because this device feature is few, has only tripod, be subjected to collision body and weight, characteristics with features simple structure are convenient to be transported to Anywhere and are constructed.

Marginal data:

Fig. 1 is a scheme of installation of the present utility model.

Specific embodiments: provide embodiment of the present utility model below in conjunction with accompanying drawing: the utility model comprises support triangle frame 7 and 2 two tripods of traction tripod, and traction tripod 2 can be higher than support triangle frame 7, also can be the same high with support triangle frame 7; What the utility model comprised also that a weight 5 and one is arranged on ground is subjected to collision body 10, a terminal pad is arranged at the top of support triangle frame 7, three supporting legs of the following connection support triangle frame 7 of terminal pad, below terminal pad, be provided with two suspension ring 8, weight 5 is hung on two suspension ring 8 by two tightropes 6, a terminal pad is also arranged at traction tripod 2 tops, and three supporting legs of the following connection traction tripod 2 of terminal pad are provided with a pulley 3 below terminal pad; End at weight 5 has a link 4, rope 1 one ends is hung on the link 4 of weight 5, and another section freely lands by pulley 3 backs of traction tripod 2; Weight 5 is made of a plektron structure or right cylinder, it also can be rectangular column structure, the weight of weight 5 is greater than 30 kilograms, be subjected to collision body 10 to be arranged on the below of the support triangle frame 7 that hangs weight, be close to by collision body 10 and the ground that needs bump, in being subjected to collision body 10, be provided with the hole 9 of placing inductor; During operation, construct a ground in selected position earlier with an angle of 90 degrees, make and to be close to ground at vertical and two faces of bottom level by collision body 10, the vertical ground 11 that be adjacent to by a vertical plane of collision body 10 to construct also drops on downwards on the level ground of constructing 12, the bottom water plane that is subjected to collision body 10 is close on the ground level 12, with support triangle frame 7 be arranged on be subjected to collision body 10 above, then weight 5 is hung on two suspension ring 8 on the support triangle frame 7 by rope 6, make the sagging naturally position of weight 5 reach the middle and upper part that is subjected to collision body 10, then with traction rope 1 bolt on the link 4 of weight 5, set traction tripod 2, again traction rope 1 is passed the pulley 3 of traction tripod 2, inductor is placed in the hole 9 that is subjected to collision body 10 then, connects cable; After preliminary work is all finished, by manually affecting traction rope 1, because traction tripod 2 is than support triangle frame 7 height, so, when pulling traction rope 1, weight 5 will be raised, after reaching constrain height, decontrol traction rope, weight 5 will directly hit along the track that draws from eminence and be subjected to collision body 10, has just excited shear wave when weight 5 hits when being subjected to collision body 10, owing to contacted with the earth with the bottom water plane by the another side of the face that hit of collision body 10, so the shear wave when being clashed into also can be passed to ground 11 and 12, receive this shear wave by instrument and just can obtain to be used to explain that the SH ripple of band falls in ground surface speed.

Claims

1. a shear wave source percussion device comprises tripod, and weight and be subjected to collision body is characterized in that: described tripod comprises traction tripod and support triangle frame, and the traction tripod is higher than the support triangle frame:

A. a disk is arranged at the top of support triangle frame, and the below of disk is provided with two suspension ring, and weight is hung on two suspension ring by two tightropes, is provided with a link at an end of weight;

B. drawing the tripod top also has a disk, and the below of disk is provided with pulley;

C. be subjected to collision body to be arranged on the below of support triangle frame, be provided with the hole of placing inductor in being subjected to collision body, being subjected to collision body is the square cylinder structure.

2. a kind of shear wave source percussion device according to claim 1 is characterized in that: weight can be the plektron structure, can be cylindrical structure, also can be rectangular column structure, and the weight of weight is greater than 30 kilograms.

3. a kind of shear wave source percussion device according to claim 1 is characterized in that: described traction tripod also can be the same with the support triangle frame high.