CN217359097U

CN217359097U - Geotechnical engineering reconnaissance sampling device

Info

Publication number: CN217359097U
Application number: CN202221095033.5U
Authority: CN
Inventors: 陈鸿志; 邱昕; 骆庆龙; 蒋汶成
Original assignee: Sichuan Ji'ao Metallurgical Geological Engineering Co
Current assignee: Sichuan Ji'ao Metallurgical Geological Engineering Co
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-09-02
Anticipated expiration: 2032-05-09

Abstract

A geotechnical engineering investigation sampling device relates to the technical field of geotechnical engineering equipment. The device includes the platform, the platform lower part is equipped with at least three scalable landing leg, be provided with the air level on the platform, the platform center is equipped with vertical through-hole, be equipped with the drilling rod that passes the through-hole simultaneously, the drilling rod can slide in the through-hole, drilling rod one end is equipped with the drill bit, the drilling rod comprises for curved gasket for the circular body and a cross-section that contain the arc breach by a cross-section, a cross-section is circular shape drilling rod for body and gasket component, the gasket both ends are equipped with the slider, it corresponds, the arc breach department of circular body is equipped with the spout that corresponds with the slider, it is provided with the several sampling chamber to go back the interval in the drilling rod, arc breach department is located to the opening of sampling chamber. Through setting up the circular body and the cross-section of cross-section for containing the arc breach for curved gasket, set up the sampling chamber that the arc breach department was located to the opening simultaneously, can comparatively accurately acquire the regional soil sample of target, can not receive the interference of all the other regional soil samples.

Description

Geotechnical engineering reconnaissance sampling device

Technical Field

The utility model relates to a range finding technical field, concretely relates to geotechnical engineering reconnaissance sampling device.

Background

The geotechnical engineering investigation refers to finding and analyzing the activities of geology, environmental characteristics and geotechnical engineering conditions of a target site according to requirements, and the first task is to sample the geotechnical engineering during the geotechnical engineering investigation. The ground kind is various, wherein, comparatively common kind during soft soil class stratum, soft soil class stratum has the easy destroyed characteristics of structure, consequently, should not adopt common electronic sample drill bit to take a sample, for example chinese patent CN212693294U discloses a portable sampling device is used in geotechnical engineering investigation, it is through setting up a both hands grab handle, the main pole body, the mode of two geotechnical sampling poles is taken a sample to the soft soil, but its problem that exists is, because its sample flume exposes externally completely, when the sample, the soil sample on upper strata can get into in the sample flume, be difficult to get the sample of target reservoir. Meanwhile, when soft soil at different depths is sampled, the distance from the taken soft soil to the horizontal plane is difficult to determine, and the taken soil sample is easily interfered by other soil layers.

SUMMERY OF THE UTILITY MODEL

In view of this, do not solve above-mentioned at least one problem, the utility model aims to provide a geotechnical engineering reconnaissance sampling device, its can be more accurate acquire the regional soil sample of target, and the soil sample of acquireing can not receive the interference of all the other soil layers.

The technical proposal provided by the utility model is that a geotechnical engineering investigation sampling device comprises a platform, the lower part of the platform is provided with at least three telescopic supporting legs, the platform is provided with a level bubble, the center of the platform is provided with a vertical through hole, meanwhile, a drill rod penetrating through the through hole is arranged, the drill rod can slide in the through hole, the diameter of the drill rod is the same as the inner diameter of the through hole, one end of the drill rod is provided with a drill bit, the drill rod consists of a circular body with an arc-shaped gap on the cross section and a sealing sheet with an arc-shaped cross section, the body and the sealing sheet form a drill rod with a circular section, two ends of the sealing sheet are provided with sliding blocks, correspondingly, the arc-shaped notch of the circular body is provided with a sliding groove corresponding to the sliding block, a plurality of sampling chambers are arranged in the drill rod at intervals, and openings of the sampling chambers are arranged at the arc-shaped notch.

The utility model discloses an embodiment lies in, scalable landing leg comprises last landing leg and lower landing leg, it connects to go up the landing leg the platform, just go up the landing leg with be equipped with corresponding screw thread on the lower landing leg, it is adjustable through the screw thread scalable landing leg's height.

The utility model discloses an embodiment lies in, the lower landing leg is kept away from the one end of going up the landing leg is equipped with prevents the pad of toppling, prevent that the pad of toppling is rigid material, just prevent that the size of toppling and filling up does lower landing leg cross sectional dimension's 3 at least times.

The utility model discloses an embodiment lies in, be equipped with the several sample storage box on the platform.

An embodiment of the utility model is that the drill rod top still is equipped with the handle.

The utility model discloses the technical effect who plays is: by arranging the telescopic supporting legs and the leveling bubble, the platform can be leveled, so that the drilling direction of the drill rod is vertical downward, and a required soil sample can be taken out at a more accurate position; by arranging the circular body with the arc-shaped section and the sealing sheet with the arc-shaped section and arranging the sampling chamber with the opening arranged at the arc-shaped notch, the soil sample in a target area can be accurately obtained without being interfered by the soil samples in other areas; through setting up a plurality of sampling chambers, can acquire the soil sample of the different degree of depth simultaneously, efficiency is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of a section B-B in FIG. 2;

fig. 4 is a schematic structural view of the telescopic leg.

In the figure, 1 is a platform, 2 is a drill rod, 3 is a sampling chamber, 4 is a telescopic supporting leg, 5 is an anti-overturning pad, 6 is a leveling bubble, 7 is a sampling chamber, 8 is a handle, 9 is a sealing sheet, 10 is a sliding block, and 11 is a body;

201 is a drill bit, 401 is an upper leg, and 402 is a lower leg.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Referring to fig. 1 to 3, a geotechnical engineering investigation sampling device comprises a platform 1, at least three telescopic legs 4 are arranged at the lower part of the platform 1, a level bubble 6 is arranged on the platform 1, a vertical through hole is arranged at the center of the platform 1, a drill rod 2 penetrating through the through hole is arranged at the same time, the drill rod 2 can slide in the through hole, the diameter of the drill rod 2 is the same as the inner diameter of the through hole, a drill bit 201 is arranged at one end of the drill rod 2, the drill rod 2 comprises a circular body 11 with an arc-shaped notch on the cross section and a sealing sheet 9 with an arc-shaped cross section, the body 11 and the sealing sheet 9 form the drill rod 2 with the circular cross section, sliding blocks 10 are arranged at two ends of the sealing sheet 9, correspondingly, sliding grooves corresponding to the sliding blocks 10 are arranged at the arc-shaped notch of the body 11, a plurality of sampling chambers 3 are further arranged at intervals in the drill rod 2, the opening of sampling chamber 3 is located arc breach department.

Specifically, through setting up scalable landing leg 4 and air level 6, can be with platform 1 leveling: when the air bubble is not arranged at the center of the level bubble 6, the level bubble 6 can be adjusted by adjusting the length of each telescopic supporting leg 4, and then the platform 1 is leveled. In this embodiment, the platform 1 needs to be leveled because the distance from the sampling point to the earth surface needs to be calculated during sampling, and if the platform 1 is not kept horizontal, the drill rod 2 is difficult to vertically drill, which causes inaccurate distance calculation, thereby affecting subsequent judgment.

The drill rod 2 is the main sampling tool, and in the present embodiment, sampling is performed manually using the drill rod 2. Wherein, 2 one end of drilling rod passes the vertical through-hole at platform center, and 2 one end of drilling rod is equipped with a conical drill bit 201, through drill bit 201, can effectively reduce the resistance of drilling down when sampling. Referring to fig. 2 and 3, the drill rod 2 is composed of a circular body 11 with an arc-shaped notch in cross section and a sealing sheet 9 with an arc-shaped cross section, the sealing sheet 9 and the body 11 are matched to form the drill rod 2 with a circular cross section, and meanwhile, the sealing sheet 9 can slide on the body 11: through set up a slider 10 at gasket 9 both ends, set up the spout that corresponds with this slider 10 in the breach department of drilling rod 2 simultaneously, match through slider 10 and spout for gasket 9 can slide from top to bottom on body 11.

A plurality of sampling chambers 3 are further provided at intervals at one end of the drill rod 2 close to the drill bit 201, in this embodiment, the sampling chambers 3 are substantially cavities formed in the drill rod 2, and the cavities have various shapes, such as a sector, a rectangular irregular pattern, and the like, for example, the cross section of the cavities can be a sector, a rectangular irregular pattern, and the like, but the openings of the sampling chambers 3 must be provided at the arc-shaped notches of the body 11. When the lower end of the sealing sheet 9 is contacted with the lower end of the body 11, the sealing sheet 9 seals the openings of all the sampling chambers 3; when the sealing sheet 9 is removed, the opening of the sampling chamber 3 is opened, and therefore, sampling can be performed at a formation of a certain target depth.

As for the telescopic legs 4, a conventional telescopic rod may be applied to the present embodiment, such as a damping telescopic rod, a telescopic rod using an external fastener, and the like. However, these common telescopic rods have a problem of low adjustment precision, and for this reason, a telescopic leg 4 is proposed in the present embodiment: this scalable landing leg 4 comprises upper leg 401 and lower landing leg 402, and upper leg 401 one end fixed connection platform 1, upper leg 401 other end connect lower landing leg 402, wherein, through threaded connection between upper leg 401 and the lower landing leg 402, through the screw thread, the height of the scalable landing leg 4 of regulation that can be more accurate, and then make platform 1 level.

Through above structure, can realize taking a sample to target weak soil reservoir: place platform 1 in waiting to take a sample the point, whether the observation platform 1 is level through air level 6, if the platform is 1 slope, the accessible is adjusted the length of scalable landing leg 4 and is said platform 1 leveling, after the leveling, the one end that is equipped with drill bit 201 with drilling rod 2 inserts the vertical through-hole on the platform 1, later insert drilling rod 2 in the soft soil layer, wait after drilling rod 2 and bore certain degree of depth, take out gasket 9 on drilling rod 2, the soil sample of target degree of depth can be taken out to rotatory drilling rod 2 afterwards, after taking out the soil sample, insert gasket 9, it can to later pull out drilling rod 2.

In some cases, for some special soft soil formations, such as formations with high water content, when the platform 1 is placed on the formation, the platform 1 is prone to sinking, which results in inaccurate distance measurement and difficulty in ensuring the level of the platform 1, therefore, an anti-tilting pad 5 is further disposed at one end of the lower leg 402 away from the upper leg 401, the anti-tilting pad 5 is substantially a rigid plate with an area larger than the cross-sectional area of the lower leg 402, and by disposing the anti-tilting pad 5, the contact area between the lower leg 402 and the formation can be increased, so that the pressure applied to the soft soil formations can be reduced, and sinking of the platform 1 can be effectively prevented. However, to achieve the function of the platform 1, the area of the anti-toppling pad 5 needs to be limited, generally speaking, the size of the anti-toppling pad 5 should be 3 times larger than the cross-sectional size of the lower leg 402, and the larger the area of the anti-toppling pad 5 is, the better the effect is, but when the area reaches a certain degree, the anti-toppling pad is difficult to carry, so the relation between the anti-toppling performance and the size needs to be considered comprehensively.

To geotechnical engineering, the soil sample of taking out adopts the sealing bag to carry usually, but the sealing bag has easy damaged problem in carrying the in-process, consequently, still is provided with several sample storage box 6 on platform 1, takes out the soil sample the back, place in sample storage box 6 can, portable is difficult to receive external environmental pollution simultaneously.

For the drilling rod 2, after drilling into the soft soil layer, the drilling rod 2 is relatively labor-consuming, therefore, the handle 8 is further arranged at the top of the drilling rod 2, and the handle 8 is horizontally arranged, so that the drilling rod 2 can be pushed into the soft soil layer more labor-saving.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiment of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A geotechnical engineering investigation sampling device is characterized by comprising a platform, wherein the lower part of the platform is provided with at least three telescopic supporting legs, the platform is provided with a level bubble, the center of the platform is provided with a vertical through hole, meanwhile, a drill rod penetrating through the through hole is arranged, the drill rod can slide in the through hole, the diameter of the drill rod is the same as the inner diameter of the through hole, one end of the drill rod is provided with a drill bit, the drill rod consists of a circular body with an arc-shaped gap on the cross section and a sealing sheet with an arc-shaped cross section, the body and the sealing sheet form a drill rod with a circular section, two ends of the sealing sheet are provided with sliding blocks, correspondingly, the arc-shaped notch of the circular body is provided with a sliding groove corresponding to the sliding block, a plurality of sampling chambers are arranged in the drill rod at intervals, and openings of the sampling chambers are arranged at the arc-shaped notch.

2. The apparatus of claim 1, wherein the telescoping legs comprise an upper leg and a lower leg, the upper leg being connected to the platform and the upper leg and the lower leg having corresponding threads thereon, the height of the telescoping legs being adjustable by the threads.

3. The apparatus of claim 2, wherein an end of the lower leg remote from the upper leg is provided with an anti-toppling pad, the anti-toppling pad is made of a rigid material, and the size of the anti-toppling pad is at least 3 times the cross-sectional size of the lower leg.

4. The apparatus of claim 1, wherein the platform comprises a plurality of sample storage cartridges.

5. The apparatus of claim 1, wherein the drill rod top is further provided with a handle.