JP3138225B2 - Penetration test equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the degree of softness or tightness of a ground, that is, the strength of ground support, by penetrating a penetration test rod into the ground and measuring the penetration resistance at the time of the penetration. The present invention relates to an apparatus for performing a penetration test called a Swedish sounding test.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional Swedish sounding test apparatus. In this figure, 1 is a handle, 2 is a weight, and two 10 kg and three 25 kg are used. Reference numeral 3 denotes a loading clamp having a weight of 5 kg. 4 is a bottom plate, 5 is a 1 m long rod for attaching the handle 1, the weight 2 and the loading clamp 3, 6 is a 0.8 m long screw point rod having a scale P every 25 cm. It is adapted to be connected to a rod 5, and a conical screw point 7 is connected to the tip of the rod.

The Swedish sounding test using the above-mentioned apparatus is performed in the following operation sequence.

(1) First, in a state where the weight 2 is not attached, a 5 kg loading clamp 3 is fixed at a position 50 cm from the position of the screw point 7, and the rod 5 and the rod 5 are connected to the survey point through the bottom plate 4. The screw point rod 6 is supported upright. Here, a reference plane for measurement is provided near the ground surface.

(2) It is checked whether or not the rod 6 penetrates into the ground as it is, and if it does penetrate, measure the length from the reference plane when the penetration stops to the next graduation line of the rod 6. Determine the amount of penetration and record the amount of penetration for a load of 5 kg.

(3) Next, the weight 2 of 100 kg is placed on the loading clamp 3 and the same operation as in (2) is performed to record the penetration amount of 15 kg.

(4) Then, the load is increased one after another,
Repeat step (3). The loading stages are 5kg, 15kg,
25kg, 50kg, 75kg, 100kg, but mainly 5kg
The penetrations at 0 kg, 75 kg and 100 kg are measured.

(5) When the loading clamp 3 reaches the bottom plate 4, the weight 2 is removed, and if the rod 6 is not enough, the loading clamp 3 is extended, and the loading clamp 3 is pulled up by 50 cm and fixed.
Perform the above operations.

(6) If the penetration of the rod 6 stops at 100 kg, the amount of penetration is measured, the handle 1 is attached as it is, and the handle 1 is rotated so that no vertical force is applied to it. Record the number of half revolutions required to penetrate to the scale line. The measurement after this is 25cm (scale P)
Do it every time. The direction of rotation of the handle 1 is clockwise, and the direction in which the handle 1 temporarily stops every half turn is counted as one time.

(7) When the screw point 7 hits a large stone or the like and the rotational repulsion of the handle 1 becomes extremely large, the measurement is stopped. When the measurement is completed, the weight 2 is lowered, all the rods 5 and 6 are pulled out by a pulling-out device, the number is checked, and the screw point 7 is checked for abnormality.

[0011]

As described above, in the use of the Swedish sounding test with the conventional device, individual labor of measured persons appeared in reading of measured values and judgment of self-sinking due to severe physical labor. . That is, in the conventional test apparatus, the lifting and lowering of the weight 2 of 10 kg and 25 kg has to be performed every time when the weight 2 penetrates 50 cm.
For example, when it penetrates into the ground of 10m, it is necessary to raise and lower the weight 2 20 times. Therefore, one worker at a time
10 × 2 × 20 × 2 + 25 × 3 × 20 × 2 = 3800kg because 9kg is lifted and lowered by 2 pieces and 25kg by 3 pieces.
I had to work to lift up to 3,800 kg in weight, which is 152 in weight. In addition, since the penetration, the penetration speed, the number of revolutions, and the like of the rod are visually observed and recorded in the measurement, there is a possibility that the measurement data varies depending on the operator.

The present invention eliminates the need for physically demanding work when conducting a Swedish sounding test, and allows a penetration test device capable of performing an accurate measurement with minimum occurrence of individual differences. The task is to provide

[0013]

According to a first aspect of the present invention, there is provided a penetration test apparatus comprising: a clamp section for clamping a penetration test rod; a rotation drive section for rotationally driving the penetration test rod; It includes a governor weight stand 8, and a predetermined weight of loading portion 15 which is vertically movably supported, the switching
A fluid lifting cylinder 17 for lifting a rod, which is detachably connected to the loading part 15 by a connecting means 16 operated by a releasing hydraulic cylinder 33 to lift the loading part 15 to a predetermined height, and a plurality of weights 2 And a measuring unit 19 for measuring the amount of penetration of the penetration test rod 12 are provided on the apparatus main body 10. Things.

According to a second aspect, in the penetration test apparatus according to the first aspect, the weight supply mechanism 18 is supported by a vertical guide means G3 so as to be able to move up and down, and is driven up and down by a hydraulic cylinder 38 for driving up and down. A plurality of weight transfer underframes supported so as to be able to move horizontally by a frame 39 and horizontal guide means G4 provided in a plurality of upper and lower stages on the elevating frame 39, and formed to hold the weight 2. 40 and the respective underframes 40 are moved from the standby position to the weight feeding position on the weight mounting table 8 so that the weight 2 gripped by the underframe 40 is fed into the weight mounting table. And an underframe moving hydraulic cylinder 41.

According to a third aspect of the present invention, in the penetration test apparatus according to the first or second aspect, the piston rod 17a of the hydraulic cylinder 17 for lifting the rod is provided with a vertical guide means G.
2, the linking means 16 is operatively connected to an elevating frame 30 which is supported to be able to move up and down.
This connecting means 16 connects one end of a rotating lever 32 rotatable about a horizontal support shaft 31 to a hydraulic cylinder 33 for rotation, and engages a locking portion 34 provided at the tip of the rotating lever 32. The hydraulic cylinder 33 is adapted to be disengaged from the locked part 35 provided on the loading part 15 by the expansion and contraction operation of the hydraulic cylinder 33.

According to a fourth aspect of the present invention, in the penetration test apparatus according to any one of the first to third aspects, each weight 2 is formed in a short columnar shape and has an annular groove 2a on its outer peripheral surface. The transfer frame 40 has a fork 47 which can be inserted into and removed from both sides of the annular groove 2a of each weight 2 by inserting and removing the fork 47 into the annular groove 2a. At the weight feeding position, the weight is fed onto the weight mounting table 8.

According to a fifth aspect of the present invention, there is provided the penetration test apparatus according to any one of the first to fourth aspects, wherein the apparatus main body 10 is provided with a traveling drive means 11 so that the apparatus main body 10 can run on its own.

[0018]

FIG. 1 is a plan view showing the entire penetration test apparatus of the present invention, and FIG. 2 is a side view thereof. In these figures, reference numeral 10 denotes an apparatus main body, which is composed of an endless track belt. Self-propelled by the driving means 11. A horizontal base 20 is provided on the apparatus main body 10, and on this horizontal base 20, a chuck portion 13 for clamping the penetration test rod 12, and the penetration test rod 12 clamped by this is rotationally driven. A loading unit 15 having a predetermined weight, which is constituted by a rotation driving unit 14 and the like;
6, a hydraulic cylinder 17 for lifting the rod, which is detachably connected to the loading section 15 to lift the loading section 15 to a predetermined height, and a plurality of weights 2 for each of the weight mounts of the loading section 15 described above. Weight feeding mechanism 1 for feeding on 8
8 and a measuring unit 19 for measuring the amount of penetration of the penetration test rod 12. Further, on the horizontal base 20, a rod lifting fluid pressure cylinder 17 and a loading portion 1 are provided.
5, a vertical frame 21 is vertically provided on one side. Reference numeral 21a denotes a support frame for backing up the vertical frame 21.

As can be seen from FIG. 3 to FIG.
Has a lifting frame 22, and a hydraulic chuck section 13 for clamping the penetration test rod 12 in a vertical position is provided below the lifting frame 22, and the chuck section 13 is located above the hydraulic chuck section 13.
A rotary drive unit 14 including a hydraulic motor 23 for rotating and driving the penetration test rod 12 clamped by the motor, a gear mechanism 24, and the like is provided, and a cam clutch 54 is provided between the rotary drive unit 14 and the chuck unit 13. A weight mounting table 8 is provided above the hydraulic motor 23, and a weight locking projection 9 is protruded from the center of the upper surface of the weight mounting table 8. . The cam clutch 54 enables the chuck portion 13 to rotate in one direction when the rotation drive portion 14 is in a non-operating state, and the rod 12 held by the chuck portion 13 is rotated by the spiral portion of the screw point 7. It is intended to be able to self-sink.
The elevating frame 22 includes a pair of guide rails 26 vertically arranged along the vertical frame 21, and a plurality of sliders mounted on the elevating frame 22 and slidably held by the guide rails 26. 27 so as to be able to move up and down by the vertical guide means G1. The loading unit 15 has a weight of 5
It is set to be 0kg. In addition, the lifting frame 2
A shock absorber 25 is provided at the lower end of one side of 2.

As shown in FIGS. 3 and 4, the hydraulic cylinder 17 for lifting the rod is composed of a hydraulic cylinder, and is installed in a downwardly U-shaped underframe 29 erected on a horizontal base 20. The piston rod 17a projects from the top plate 29a. The piston rod 17a is linked to an elevating frame 30 supported by the vertical guide means G2 so as to be able to move up and down. The connecting means 16 is provided on the elevating frame 30. This connecting means 16
The piston rod 3a of the hydraulic cylinder 33 for rotation is connected to one end of a rotation lever 32 rotatable about a horizontal support shaft 31.
And a locking roller 34 (locking portion) pivotally attached to the tip of the rotating lever 32.
5 is adapted to be disengaged from a flange 35 (locked portion) provided at an upper end portion by the expansion and contraction operation of the hydraulic cylinder 33. The vertical guide means G2 includes a pair of guide rails 36 disposed along the vertical frame 21 and a plurality of sliders 37 attached to the elevating frame 30 and slidably held by the guide rails 36. Consists of

Accordingly, as shown in FIG. 3, the connecting lever 16 is rotated by the contraction operation of the rotating hydraulic cylinder 33 so that the rotating lever 32 is rotated counterclockwise in FIG. 34 (locking portion) is locked to the flange 35 (locked portion) on the loading portion 15 side, and connects the rod lifting fluid pressure cylinder 17 and the loading portion 15. In this connection state, the loading portion 15 is raised by the rod lifting fluid pressure cylinder 17 performing a predetermined stroke extension operation, and when the rotating hydraulic cylinder 33 is extended, the loading portion 15 is extended.
As shown by the solid line in FIG.
The rod 15 is detached from the flange 35 on the fifth side, and the connection between the rod lifting fluid pressure cylinder 17 and the loading portion 15 is released, whereby the loading portion 15 is lowered from its raised position by its own weight.

The weight 2 is placed on the weight mounting table 8 of the load portion 15 described above.
As shown in FIGS. 3 and 5, the weight supply mechanism 18 is supported by a vertical guide means G3 so as to be able to move up and down, and is moved up and down by a fluid cylinder 38 for driving up and down. Two upper and lower weight transfer underframes 40 which are horizontally movably supported by horizontal guide means G4 provided in two upper and lower stages on the frame 39 and are formed so as to grip the weight 2; The transfer frame 40 is moved from the standby position to the feeding position on the weight placing table 8, and the weight 2 gripped by the frame 40 is sent to the weight placing table 8. And a fluid pressure cylinder 41. The horizontal guide means G4
May be provided on the elevating frame 39 at three or more stages, and three or more weight transfer underframes 40 may be provided on these, and three or more weights 2 may be provided. Since the weight becomes excessively large, the upper and lower sides are usually used as in this embodiment.
It is preferable to use a step type.

The vertical guide means G3 includes a horizontal base 20
A pair of guide rails 43 disposed along a vertical frame 42 erected adjacent to the vertical frame 21 above, and attached to the elevating frame 39 and slidably held by the guide rails 43, 43. And a plurality of sliders 44, each of which is provided with
As can be seen from FIG. 3, the guide rail 45 is horizontally mounted on the elevating frame 39, and includes two sliders 46 slidably held by the guide rail 45.

Each weight 2 has a weight of 25 kg and has a short cylindrical shape as shown in FIGS. 3 and 4, and has an annular groove 2a formed on the outer peripheral surface thereof. At the center of the lower surface of each weight 2, a concave portion 2 b that can be engaged with the locking projection 9 of the weight mounting table 8 is provided. Each weight transfer underframe 40 has a U-shaped fork 47 in a plan view, which is inserted into the annular groove 2a of each weight 2 from both sides so as to be freely inserted into and removed from the annular groove 2a. The weight 2 is gripped by being inserted, and is fed onto the weight placing table 8 at the weight feeding position.

The measuring unit 19 for measuring the amount of elevation of the penetration test rod 12, that is, the penetration depth of the penetration test rod 12 descending integrally with the lifting frame 22 is provided in the apparatus main body 10.
Is provided. The measuring unit 19 is a well-known device using a proximity switch, and as shown schematically in FIGS. 4 and 5, a long strip-shaped signal generating plate 19a provided vertically along the inner side surface of the vertical frame 21 and , This signal generating plate 19
a corresponding to the sensor portion 19b provided on the lifting frame 22 of the loading portion 15, and the signal generating plate 19a is formed with a concavo-convex portion continuously in a sawtooth shape along the longitudinal direction thereof,
The penetration depth of the penetration test rod 12 is measured by the sensor unit 19b that moves in proximity to this.

The main body 10 includes a traveling drive unit 1.
An air-cooled four-cycle engine 48 for driving the endless orbital ring, which is 1, is mounted, and a hydraulic drive unit 49 for driving the rod lifting fluid pressure cylinder 17 and the chuck unit 13 using the output of the engine 48.
And a hydraulic drive unit 50 for driving the rotation drive unit 14. In FIG. 2, reference numeral 51 denotes a steering lever of the traveling drive means 11, reference numeral 52 denotes a rod rotation number measuring unit for counting the number of rotations of the penetration test rod 12, and reference numeral 53 denotes a soundproof generator.

In using the penetration test apparatus having the above-described configuration, first, the apparatus main body 10 is moved to a required inspection point by the traveling drive means 11, and the loading section 15 is moved to the lowered position as shown in FIG. When the rod lifting fluid pressure cylinder 17 is in the retracted operation position, the connecting means 16 is operated to lock the locking roller 34 to the flange 35 on the loading portion 15 side, so that the rod lifting fluid pressure The cylinder 17 and the loading section 15 are connected to each other, and the hydraulic cylinder 17 for lifting the rod is operated to extend a predetermined stroke, whereby the loading section 1 is moved.
5 is lifted to a predetermined height. At this position, the loading section 15
After the rod 12 for penetrating test is inserted into the hole and the screw point 7 (see FIG. 7) at the tip of the rod 12 is supported on the inspection point, the chuck portion 13 is closed and the rod 12 for penetrating test is clamped. .

After the loading section 15 has risen to a predetermined height as described above, the hydraulic cylinder 33 of the connecting means 16 is extended, and the locking roller 34 is moved from the flange 35 on the loading section 15 side via the rotating lever 32. When the loading unit 15 is detached and the connection between the loading unit 15 and the hydraulic cylinder 17 for lifting the rod is released, the penetration test rod 12 clamped by the chuck unit 13 of the loading unit 15 has the own weight of the loading unit 15.
It penetrates into the ground by a load of 0 kg, that is, self-sinks.
The amount of penetration of the penetration test rod 12 at this time is measured by the measuring unit 19.

Next, when the penetration test rod 12 does not sink into the ground due to the load of 50 kg, only one weight 2 is placed on the weight mounting table 8 of the loading portion 15 by the weight supply mechanism 18. The weight 2 of the weight 2 is supplied to the loading unit 15.
Apply a load of 5 kg. The operation of supplying the weight 2 by the weight supply mechanism 18 is as follows.

That is, referring to FIG. 3, the lifting frame 39 is first moved by the lifting / lowering driving fluid pressure cylinder 38.
The lower surface of the weight 2 gripped by the lower weight transfer frame 40 is moved to a position where the lower surface of the weight 2 is higher than the convex portion 9 on the upper surface of the weight mounting table 8. The underframe moving fluid pressure cylinder 41
After moving the lower-side weight transfer underframe 40 from the standby position to the weight-feeding position on the weight mounting table 8 by using the lifting-lowering drive fluid pressure cylinder 38, the lifting-lowering frame 39 is lowered. The weight 2 gripped by the weight transfer base frame 40 is allowed to rest on the weight rest 8, and the lower surface side recess 2 b of the weight 2 is engaged with the projection 9 of the weight rest 8. Let it. Thereafter, the elevating frame 39 is slightly lowered by the elevating drive fluid pressure cylinder 38 to cut off the edge of the weight 2 and the fork 47 inserted into the annular groove 2a. Fluid pressure cylinder 41
Then, the lower weight transfer frame 40 is moved to the standby position, and the fork 47 is removed from the lower weight 2.

As described above, the weight 2 of 25 kg is placed on the weight mounting table 8 of the loading portion 15, and thereby the loading portion 1 is mounted.
5 is subjected to a pressing load of 75 kg obtained by adding the above-mentioned load of 25 kg to its own weight of 50 kg.
No. 2 penetrates into the ground with a pressing load of 75 kg. The amount of penetration of the penetration test rod 12 at this time is measured by the measuring unit 19.

When the penetration test rod 12 does not sink into the ground due to the above-mentioned load of 75 kg, the weight supply mechanism 18 again grips the upper-side weight transfer frame 40 on the upper stage. The weight 2 is placed on the weight 2 placed on the weight mounting table 8, so that a load of 50 kg, which is the weight of the upper and lower two weights, is applied to the loading portion 15. I do. The operation of the weight supply mechanism 18 in this case is as follows.
Only the upper weight transfer frame 40 is moved to the weight feeding position by the frame moving fluid pressure cylinder 41, and the upper weight 2 is moved in the same manner as the lower weight 2 described above.
Is placed on the weight 2 on the weight mounting table 8 so as to overlap. In this way, the two weights 2 are placed on the weight mounting table 8 of the loading portion 15, so that the loading portion 15 has its own weight of 50 kg.
100 kg with a load of 50 kg, which is the weight of each weight 2
Pressure load is applied, and therefore the penetration test rod 1
No. 2 penetrates into the ground by the pressing load of 100 kg. The amount of penetration of the penetration test rod 12 at this time is measured by the measuring unit 19. When the weight 2 is held by the weight transfer frame 40, the weight transfer frame 40 is
In the standby position as shown by the solid line in FIG.
The annular groove 2a of the weight 2 may be engaged with the zero fork 47.

After the penetration amount of the penetration test rod 12 is measured as described above, when the penetration test rod 12 does not penetrate any more, the rotation drive unit 14 of the loading unit 15
Is operated to rotate the penetration test rod 12 clamped by the chuck portion 13 connected to the rotation drive portion 14, and the rod 12 is penetrated into the ground, and the 25 cm (scale P) as shown in FIG. ) Is measured by the measuring unit 19, the rotation speed of the rod 12 at that time is read by a rod rotation speed counter 49, and these are recorded in a computer.

When the screw point 7 of the penetration test rod 12 hits a large stone or the like and the rotation repulsion of the rotation drive unit 14 becomes so large that the rotation is stopped, the measurement is stopped. When the measurement is over,
The chuck portion 13 of the loading portion 15 is opened to pull out the penetration test rod 12 from the loading portion 15, the number of connected rods 12 is checked, and whether or not the screw point 7 at the tip is abnormal is checked.

When the inspection of one inspection point is completed, the apparatus main body 10 is moved to the next required inspection point by the traveling drive means 11, and the penetration test can be performed in the same manner as described above. According to this penetration test apparatus, there is a great advantage that the apparatus can be easily and easily moved to a necessary investigation point to perform a penetration test.

[0036]

According to the first aspect of the present invention, there is provided a clamp portion for clamping the rod for penetration test, a rotation drive portion for rotating the rod clamped by the clamp portion, and a weight rest, which are supported vertically. a predetermined weight of loading portion that is, separating
A hydraulic cylinder for lifting the rod, which is detachably connected to the loading portion by a connecting means operated by a hydraulic cylinder for lifting, and lifts the loading portion to a predetermined height; and a weight of the loading portion, each of which includes a plurality of weights. A penetrating test apparatus is configured by providing a weight supply mechanism that supplies a load onto a mounting table and a measuring unit that measures the amount of penetration of the penetrating test rod in the apparatus main body. Severe manual labor to load the weight directly into the rod for the penetration test manually by hand during the penetration process is no longer necessary,
In addition, reading of measured values and judgment of self-sinking are automated, and can be performed extremely accurately. In addition, this penetration test device has a simple structure of the whole device, and does not require manual rotation of the rod for penetration test rod peculiar to the Swedish sounding test as in the past, and is automatically performed. Since the rotational force can be kept constant, accurate measurement can be performed with less damage to the penetration test rod.

According to the second aspect, the weight supply mechanism is supported by the vertical guide means so as to be able to move up and down, and is moved up and down by the up-and-down driving fluid pressure cylinder. A plurality of weight transfer underframes, each of which is horizontally movably supported by the provided horizontal guide means and is formed to grip the weight,
A frame moving fluid pressure cylinder that moves each of the frames from a standby position to a weight feeding position on the weight mounting table, and feeds the weight held by the frame to the weight mounting table. With this weight supply mechanism, a weight having a predetermined weight can be sequentially and reliably applied to the loading portion.

According to the third aspect of the present invention, the connecting means for connecting the rod lifting fluid pressure cylinder and the loading portion is configured such that one end of a rotating lever rotatable about a horizontal support shaft is interlocked with the rotating hydraulic cylinder. In addition to the above-described cylinder, the locking portion provided at the tip of the rotating lever is disengaged from the locked portion provided on the load portion by the expansion and contraction operation of the hydraulic cylinder. The connecting operation between the connecting means and the loading section can be performed quickly and easily, and the structure of the connecting means can be made compact, so that no space is required.

According to the fourth aspect, each weight is formed in a short columnar shape and has an annular groove on the outer peripheral surface.
Each weight has a fork that can be inserted into and removed from both sides of the annular groove. The fork is inserted into the annular groove to grip the weight, and is sent to the weight mounting table of the loading section at the weight feeding position. With this configuration, it is easy to feed the weight on the weight mounting base from the weight transfer underframe, and to easily grip the weight on the weight transfer underframe.

According to the fifth aspect, the traveling drive means is provided in the apparatus main body, and the apparatus main body can be self-propelled, so that the apparatus can be quickly moved to the investigation point, and the investigation efficiency can be remarkably increased. .

[Brief description of the drawings]

FIG. 1 is an overall schematic plan view of a penetration test apparatus according to the present invention.

FIG. 2 is a side view of the penetration test apparatus shown in FIG.

FIG. 3 is an enlarged side view of a main part of the penetration test device shown in FIG.

FIG. 4 is an enlarged sectional view taken along line XX of FIG. 1;

FIG. 5 is an enlarged plan view of a main part of the penetration test device shown in FIG.

FIG. 6 is a side view showing a conventional penetration test apparatus.

[Explanation of symbols]

 Reference Signs List 2 weight 2a annular groove 8 weight mount 10 device main body 11 traveling drive means 12 penetration test rod 13 chuck section 14 rotation drive section 15 loading section 16 connecting means 17 rod lifting hydraulic pressure cylinder 18 weight supply mechanism 19 Measuring unit 21 Vertical frame 31 Horizontal support shaft 32 Rotating lever 33 Hydraulic cylinder 34 Piston rod (locking portion) 35 Flange (Locked portion) 38 Fluid pressure cylinder for lifting drive 39 Lifting frame 40 Weight transfer underframe 41 Underframe moving fluid pressure cylinder 42 Vertical frame 47 Fork G1 Vertical guide means G2 Vertical guide means G3 Vertical guide means G4 Horizontal guide means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-230419 (JP, A) JP-A-6-272235 (JP, A) JP-A-10-38781 (JP, A) 178042 (JP, U) Japanese Utility Model Showa 62-7341 (JP, U) Japanese Utility Model Showa 62-159544 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 1/00-1 / 08

Claims (5)

(57) [Claims] 1. A load having a predetermined weight supported by a clamp portion for clamping a penetration test rod, a rotation drive portion for rotatingly driving the penetration test rod clamped by the clamp portion, and a weight mounting table. Section and a hydraulic
A hydraulic cylinder for lifting the rod, which is detachably connected to the load part by a connection means operated by a cylinder and lifts the load part to a predetermined height, and a weight mount for the load part one by one by a plurality of weights A penetrating test apparatus comprising: a weight supply mechanism for supplying an upper part; 2. The weight supply mechanism comprises a lifting frame supported by a vertical guide means so as to be able to move up and down and driven up and down by a hydraulic cylinder for driving up and down, and horizontal guides provided on the lifting frame at a plurality of upper and lower stages. A plurality of weight transfer underframes, each of which is supported so as to be horizontally movable by means, and is formed so as to grip the weights, and the weight feeding of the respective weight frames from the standby position to the weight mounting table; The penetrating test apparatus according to claim 1, further comprising: a frame moving fluid pressure cylinder configured to move the weight gripped by the frame to a weight mount by moving the weight to the position. 3. A piston rod of the hydraulic cylinder for lifting a rod is connected to a lifting frame supported vertically by a vertical guide means, and the connecting means is provided on the lifting frame. One end of a rotating lever rotatable about a horizontal support shaft is interlocked to a hydraulic cylinder for rotation, and a locking portion provided at a tip of the rotating lever is a locked portion provided on the load portion. 2. The hydraulic cylinder according to claim 1, wherein said hydraulic cylinder is disengaged by a hydraulic cylinder.
Or the penetration test device according to 2. 4. Each of the weights is formed in a short columnar shape and has an annular groove on its outer peripheral surface, and each weight transfer underframe can be freely inserted into and removed from the annular groove of each weight from both sides. A fork to be inserted, wherein the fork is inserted into the annular groove to grasp a weight, and is fed onto the weight mounting table at the weight feeding position.
3. The penetration test device according to any one of 3. 5. The penetration test apparatus according to claim 1, wherein a traveling drive unit is provided on the apparatus main body, and the apparatus main body can be self-propelled.