CN220202631U

CN220202631U - Penetration measuring device for standard penetration test

Info

Publication number: CN220202631U
Application number: CN202321679854.8U
Authority: CN
Inventors: 侯英杰; 唐海峰; 郭京平; 贾昊明; 陈玉芹; 寇祎凡; 安泽普; 刘静
Original assignee: Hebei Tianbo Construction Technology Co ltd
Current assignee: Hebei Tianbo Construction Technology Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-12-19
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a penetration measuring device for a standard penetration test, which comprises: the drill rod penetrates through the indication bracket; the indicating buckle is detachably arranged on the drill rod; the scale device is arranged on the indication bracket and used for indicating scales. According to the utility model, the detachable indicating buckle is arranged on the drill rod for recording the test hit number, and the five scale rings on the indicating support are sequentially separated from each other by 15cm, 10cm and 10cm from top to bottom to indicate scales, so that a worker does not need to mark by using ruler to mark, the test data precision is high, the test efficiency is high, the balance bubble is centered by adjusting the supporting legs, the test device is horizontal, the test is accurate, the stainless steel indicating support and the detachable indicating buckle are wear-resistant and not easy to be covered by soil, the definition is influenced, in addition, the indicating support can also ensure the centering of the drill rod, the worker can not hold the drill rod during the test, and the potential safety hazard is reduced.

Description

Penetration measuring device for standard penetration test

Technical Field

The utility model relates to the technical field of measuring equipment, in particular to a penetration measuring device for a standard penetration test.

Background

In geotechnical engineering investigation and foundation detection, a standard penetration test is often used, and after a marker is required to be penetrated into the soil for 15cm, the number of hammers which are penetrated into the soil for 10cm each time is recorded, and the accumulated number of hammers which are penetrated into the soil for 30cm each time is recorded. But the drilling equipment in the current engineering has no test device for the standard penetration test. In the test operation process, a driller usually adopts stones or engine oil to mark on a drill rod, scale marks are often smeared or flushed and are not easy to distinguish, so that the recorded hammering number is inaccurate, and potential quality hazards exist; because the interval between the drill rod and the drilled hole is very large, workers often hold the drill rod by hand in order to ensure the centering of the drill rod, and potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide a penetration measuring device for a standard penetration test, which solves the technical problems in the prior art, can avoid marking operation by a worker through scale drawing, ensures high precision of test data and ensures high test efficiency.

The utility model provides a penetration measuring device for a standard penetration test, which comprises:

the indication bracket is hollow;

the drill rod is arranged in the indication bracket in a penetrating way;

the indicating buckle is detachably arranged on the drill rod;

the scale device is arranged on the indication bracket and used for indicating scales.

In the technical scheme of this embodiment, first boring to soil layer position that awaits measuring, the drilling center position department of boring is placed at the drilling of probing to the instruction support, and the drilling rod is inserted and is established inside the instruction support, and the scale device on the instruction support is used for instructing fixed scale, omits manual measurement, and the instruction is detained and is used for showing the decline degree of depth of drilling rod, and the instruction is detained and is had certain thickness and hardness, can not be covered by earth at hammering in-process, avoids reading error.

Preferably, the scale device comprises a first scale ring, a second scale ring, a third scale ring, a fourth scale ring and a fifth scale ring.

Preferably, the first scale ring is disposed at the top end of the indication bracket, and the fifth scale ring is disposed at the bottom end of the indication bracket.

Preferably, the first scale ring is spaced from the second scale ring by 15cm, the second scale ring is spaced from the third scale ring by 10cm, the third scale ring is spaced from the fourth scale ring by 10cm, and the fourth scale ring is spaced from the fifth scale ring by 10cm.

Preferably, a balance table extending outwards is arranged at the bottom of the indication bracket, and balance bubbles are arranged on the balance table.

Preferably, the balancing stand is provided with outwardly extending legs in a horizontal direction for adjusting centering of the balancing bubbles.

Preferably, a through hammer is arranged at the upper end of the drill rod, and a hammer pad is arranged below the through hammer.

Preferably, the bottom of the drill rod is provided with a through marker.

Compared with the prior art, the utility model is arranged on the drill rod through the detachable indicating buckle for recording the test hit number, and the scale is indicated through the five scale rings on the indicating bracket at intervals of 15cm, 10cm and 10cm from top to bottom in sequence, so that the worker can dispense with marking operation by ruler depiction, the precision of test data is ensured to be high, the test efficiency is ensured to be high, the balance bubble is centered through adjusting the supporting leg, the test device is enabled to be horizontal, the test is ensured to be accurate, the stainless steel indicating bracket and the detachable indicating buckle are wear-resistant and not easy to be covered by soil, the definition is influenced, in addition, the indicating bracket can also ensure the centering of the drill rod, the worker can not hold the drill rod during the test, and the potential safety hazard is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view showing the structure of a stent in the present utility model;

fig. 3 is a schematic structural view of the indicating button in the present utility model.

Reference numerals illustrate:

1. a core penetrating hammer; 2. a hammer pad; 3. a drill rod; 4. an indication buckle; 5. an indication bracket; 6. a through mark device; 7. a scale device; 71. a first scale ring; 72. a second scale ring; 73. a third scale ring; 74. a fourth scale ring; 75. a fifth scale ring; 8. a balancing stand; 9. a support leg; 10. the bubbles are balanced.

Detailed Description

Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1, an embodiment of the present utility model provides a penetration measuring apparatus for a standard penetration test, including: the indication bracket 5 is hollow, the indication bracket 5 is made of stainless steel, can be reused and has low cost; the drill rod 3 is arranged in the indication bracket 5 in a penetrating way; the indicating buckle 4 is detachably arranged on the drill rod 3, when the through mark test is carried out, the indicating buckle 4 is arranged at the appointed position of the drill rod 3, so that the experiment can be carried out, and as the use environment of each through mark test is different, the indicating buckle 4 needs to be designed into a detachable structure, so that the indicating buckle 4 is convenient to be arranged at the appointed position, and the accuracy of test data is ensured; in this embodiment, see fig. 3, instruct knot 4 can be staple bolt structure, through bolt and drilling rod 3 detachably installation together, play fixed effect with the instruction, and instruct knot 4 to adopt stainless steel material, durable, because the general more earth of standard penetration test service environment, adopt stainless steel material can increase of service life, and it has certain thickness, be convenient for find its position that descends in the test process, scale device 7 sets up on instructing bracket 5, be used for the instruction scale, traditional through mark experiment is through marking the scale with the pen on drilling rod 3, easily the sign is unclear under the cover of earth, cause data error, adopt fixed scale device 7 sign scale, can make test data more accurate, and scale device 7 sets up to have certain thickness, the protrusion is in the surface of instructing bracket 5, be convenient for observe.

In this embodiment, the scale device 7 includes a first scale ring 71, a second scale ring 72, a third scale ring 73, a fourth scale ring 74 and a fifth scale ring 75, the scale device 7 is set to a plurality of scale rings, the scale rings protrude out of the outer surface of the indication bracket 5, so that the observation in the test process is facilitated, and the plurality of scale rings and the indication bracket 5 are integrally formed and serve as reference devices for measurement, so that the measurement is more accurate.

As another embodiment of the application, the first scale ring 71 is arranged at the top end of the indication bracket 5, the fifth scale ring 75 is arranged at the bottom end of the indication bracket 5, and since the through mark test is to start recording the number of hammers of 10cm each time after the injector is driven into the soil by 15cm, and record the accumulated number of hammers of 30cm each time, the first scale ring 71 is arranged at the top end of the indication bracket 5, the test requirement can be met by the fifth scale ring 75 arranged at the bottom end of the indication bracket 5, and the top end and the bottom end of the indication bracket 5 are convenient for the use and observation of the testers, and have more visual indication function compared with other positions.

The first scale ring 71 is spaced 15cm from the second scale ring 72, the second scale ring 72 is spaced 10cm from the third scale ring 73, the third scale ring 73 is spaced 10cm from the fourth scale ring 74, and the fourth scale ring 74 is spaced 10cm from the fifth scale ring 75;

when the drill rod 3 is used, the indicating buckle 4 is arranged at the position overlapped with the first scale ring 71, in the test process, the drill rod 3 is hammered into the soil layer, the indicating buckle 4 moves downwards from the first scale ring 7 along with the increase of the standard penetration test hit number until reaching the position overlapped with the second scale ring 72, no measurement is needed at this time, only visual observation is needed, the drill rod 3 is lowered by 15cm, hammering is continued at this time, the hammer number of the indicating buckle 4 is read and respectively lowered to the positions overlapped with the third scale ring 73, the fourth scale ring 74 and the third scale ring 75, the test can be stopped, a tester can know the specific lowered scale by only observing the respective overlapped positions of the indicating buckle 4 and the scale device 7 in the whole test process, the reading is simple, the identification is convenient, and the recorded hammer number is accurate and quick.

In this embodiment, the bottom of the indication bracket 5 is provided with an outwardly extending balance table 8, and the balance table 8 is provided with a balance bubble 10, the balance table 8 and the bottom of the indication bracket 5 are located on the same horizontal plane, and play a fixed role for the indication bracket 5, and the balance bubble 10 can be stably supported on the soil layer, is embedded in the upper surface of the balance table 8, and is used for indicating whether the device is horizontal, and the balance bubble 10 can adopt a bubble level.

The balance table 8 is provided with the landing leg 9 of outside extension along the horizontal direction, makes balance bubble 10 central through adjusting landing leg 9, guarantees that the test is accurate, and in this embodiment, landing leg 9 sets up to a plurality ofly, through stepping on landing leg 9, adjusts balance bubble 10 and is in the horizontality.

The upper end of drilling rod 3 is provided with through hammer 1, and the below of through hammer 1 is provided with hammer cushion 2, and through hammer 1 hammering the dynamics of guaranteeing hammering at every turn the same through the upper end that through hammer 1 all sets up at instruction knot 4 with hammer cushion 2, and hammer cushion 2 plays the guard action to through hammer 1.

The bottom of drilling rod 3 is provided with through mark ware 6, and through mark ware 6 is located the lower extreme that keeps away from instruction knot 4, and through mark ware 6 can go deep into the soil layer.

The using method is as follows: firstly, drilling to a soil layer to be measured, centering the center of the circle of the indication bracket 5 at the center of the drilled hole opposite to the drilling hole, and centering the balance bubble 10 by adjusting the supporting leg 9, wherein the device is in a horizontal state, and the position of the drill rod 3 entering the soil layer is ensured to be centered, then, penetrating the drill rod 3 into the indication bracket 5 and enabling the through marker 6 to penetrate into the drilled hole, installing the indication buckle 4 at the position where the drill rod 3 coincides with the first scale ring 71, and enabling a tester to lift the through hammer 1 to automatically slide down through the touch control drill rod 3 to strike the hammer pad 2 so as to hammer the through marker 6 into the soil layer to be measured 12; the standard test can be completed by firstly driving 15cm, namely the indicating buckle 4 descends to the position overlapped with the second scale ring 72, counting no hammering, then starting to record the hammering of the indicating buckle 4 at the positions overlapped with the third scale ring 73, the fourth scale ring 74 and the fifth scale ring 75 respectively, namely the hammering of 10cm each time, and accumulating and recording the hammering of 30cm each time.

The foregoing description of the preferred embodiments of the utility model should not be taken as limiting the scope of the utility model, but all changes and modifications that come within the meaning and range of equivalents of the utility model are intended to be embraced therein.

Claims

1. A penetration measuring device for a standard penetration test, comprising:

the indication bracket is hollow;

the drill rod is arranged in the indication bracket in a penetrating way;

the indicating buckle is detachably arranged on the drill rod;

2. The penetration measuring device for a standard penetration test according to claim 1, wherein: the scale device comprises a first scale ring, a second scale ring, a third scale ring, a fourth scale ring and a fifth scale ring.

3. The penetration measuring device for a standard penetration test according to claim 2, wherein: the first scale ring is arranged at the top end of the indication bracket, and the fifth scale ring is arranged at the bottom end of the indication bracket.

4. The penetration measuring device for a standard penetration test according to claim 2, wherein: the first scale ring is spaced 15cm from the second scale ring, the second scale ring is spaced 10cm from the third scale ring, the third scale ring is spaced 10cm from the fourth scale ring, and the fourth scale ring is spaced 10cm from the fifth scale ring.

5. The penetration measuring device for a standard penetration test according to claim 1, wherein: the bottom of the indication bracket is provided with an outwards extending balance table, and balance bubbles are arranged on the balance table.

6. The penetration measuring device for a standard penetration test according to claim 5, wherein: the balancing stand is provided with outwardly extending support legs along the horizontal direction for adjusting the centering of the balancing bubbles.

7. The penetration measuring device for a standard penetration test according to claim 1, wherein: the upper end of the drill rod is provided with a through hammer, and a hammer pad is arranged below the through hammer.

8. The penetration measuring device for a standard penetration test according to claim 1, wherein: and a through marker is arranged at the bottom of the drill rod.