CN212201968U - In-situ soil sample collecting device based on rope coring drilling tool - Google Patents
In-situ soil sample collecting device based on rope coring drilling tool Download PDFInfo
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- CN212201968U CN212201968U CN202020772701.8U CN202020772701U CN212201968U CN 212201968 U CN212201968 U CN 212201968U CN 202020772701 U CN202020772701 U CN 202020772701U CN 212201968 U CN212201968 U CN 212201968U
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Abstract
The utility model discloses an in-situ soil sample collecting device based on a rope core drill, which is arranged on an inner pipe joint of the rope core drill and comprises an extension pipe, a cutting ring fixing pipe joint, a cutting ring fixing pipe and a soil cutting guide cutter which are sequentially sleeved and connected; a one-way valve group which is communicated from the inside to the outside of the pipe in a one-way is arranged in the cutting ring fixing pipe joint; a plurality of cutting rings are sequentially arranged between the lower end of the cutting ring fixing pipe joint and the upper end of the soil cutting guide cutter in the cutting ring fixing pipe. The in-situ soil sample collecting device based on the rope core drilling tool provided by the utility model has the advantages of convenient use and good interchangeability; zero disturbance before the sample is tested on the machine is realized, the soil sample is not damaged before the test, the real condition of the original soil layer is reflected by the test data, and the test data is not distorted.
Description
Technical Field
The utility model relates to a technical field of geological exploration specifically is a normal position soil sample collection system based on rope coring drilling tool.
Background
Geological exploration is required in the building construction process, and the mechanical properties of a soil layer are obtained through an indoor soil shearing experiment and are used for calculating the bearing capacity and evaluating the stability of a foundation. The existing method comprises the steps of drilling, collecting a soil sample, packaging the sample, transporting the sample to a laboratory, disassembling the sample in the laboratory, cutting the soil sample required by a test instrument with a standard specification (size and thickness) and convenient to test by using a cutting ring, and performing a machine experiment. The process is multiple, and the sample is heavy, inconvenient to operate, time-consuming and labor-consuming; particularly, different processes greatly disturb the sample, and the original structure and properties of the soil sample are changed, so that finally obtained experimental data cannot reflect the real situation of the original soil layer.
Therefore, there is a need to solve the above technical problems.
Disclosure of Invention
The utility model provides an original position soil sample collection device based on the rope core drill, aiming at the technical problems, the device is directly arranged on the inner pipe joint of the rope core drill, the use is convenient, and the interchangeability is good; the cutting ring of system appearance in with the laboratory is integrated to collection system in, directly uses the cutting ring fixed tube both ends of installation cutting ring to install the sealed encapsulation soil sample of plastics additional, realizes zero disturbance before the experiment of the sample computer, guarantees that the soil sample is not destroyed before the experiment and the true condition of original soil layer of experimental data reflection, ensures that experimental data is undistorted promptly.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides an in situ soil sample collection system based on rope coring drilling tool, its installs on the inner tube head of rope coring drilling tool, includes:
one end of the extension pipe is sleeved on the inner pipe joint;
one end of the cutting ring fixing pipe joint is sleeved with the other end of the extension pipe;
one end of the cutting ring fixing pipe is sleeved with the other end of the cutting ring fixing pipe joint;
the ring cutters are sequentially arranged in the ring cutter fixing pipe; and
and the soil cutting guide knife is sleeved in the other end of the cutting ring fixing pipe.
The collecting device is arranged on the inner pipe joint of the rope core drill through the extension pipe, and is convenient to use and good in interchangeability. The cutting ring is integrated in the cutting ring fixing pipe, so that the collecting device can sample, the sample preparation process is completed, the working time is saved, and the use is convenient.
The one-way valve group is arranged in the pipe of the connecting end of the cutting ring fixing pipe joint and the extension pipe and conducts the cutting ring fixing pipe joint from the inside to the outside in one way.
In the sampling process of the collecting device, the check valve group is conducted to discharge air and slurry in the pipe; in the sampling end salvage collection device process, the check valve group is closed, the soil sample is guaranteed not to drop, air and slurry outside the pipe cannot be mixed into the soil sample, and the sample cannot be damaged.
Further the check valve block includes:
the one-way valve cover is provided with a valve cover through hole and a valve cover step surface;
the one-way valve seat is hollow in the middle, the upper part of the one-way valve seat is provided with a valve cover fixing hole, the side surface of the one-way valve seat is provided with a plurality of side through holes, and the bottom of the one-way valve seat is a valve hole; and
stainless steel balls;
the stainless steel ball is arranged in the valve hole, the one-way valve cover is fixed in the valve cover fixing hole, the step surface of the valve cover is pressed on the end surface of the one-way valve seat, and a pipe wall hole communicated with the side through hole is formed in the pipe wall corresponding to the fixed one-way valve seat.
In the sampling process of the collecting device, the stainless steel ball opens the valve hole under the thrust action of air or slurry in the upper pipe of the soil sample, and the air or slurry is discharged out of the pipe through the valve hole, the side through hole and the pipe wall hole; meanwhile, the stainless steel ball floats upwards to abut against the lower part of the valve cover through hole of the one-way valve cover. When the sampling is finished and the collecting device is fished, the stainless steel ball is pressed by the air or slurry on the upper part of the one-way valve cover and outside the pipe to close the valve hole.
And the cutting ring fixing pipes are provided with different lengths according to the number of the cutting rings. And installing a proper number of cutting rings according to the experimental requirements, and further arranging cutting ring fixing pipes with different lengths.
Furthermore, the cut end of the soil cutting guide knife is a conical surface. The incision end of the conical surface is beneficial to the drilling of the soil cutting guide knife in the soil layer.
Further the soil cutting guide knife is provided with a clamp spring. The clamp spring is used for clamping a soil sample entering the collecting device, the soil sample can only enter the collecting device, sampling failure caused by the fact that the soil sample slides out when the sampling device is lifted is mainly aimed at plastic clay, and a soil cutting guide knife without the clamp spring is adopted for sandy soil or soil which is low in plasticity and is broken when the sampling device is lifted; the soil cutting guide knife with the clamp spring is used for sampling plastic clay.
In the collection system sampling process, when the soil layer is more closely knit, if the pure static pressure can not be pressed down, the outer tube assembly can be rotated at a proper low speed to help to press in, and the soil sample collection system does not rotate along with the drill bit assembly due to the bearing arranged on the drill bit assembly, or the drill bit can not be pressed down due to the collapse of the hole wall, and the resistance at the drill bit can be eliminated through proper rotation so as to press in, so that the purpose of rotation is smooth pressing in.
The in-situ soil sample collecting device based on the rope core drilling tool completes sampling and sample preparation at one time, saves the procedures of collecting samples, packaging the samples, and disassembling and preparing the samples in a laboratory, reduces the working hours, improves the working efficiency and lightens the labor intensity of operators; the plastic sealing cover is additionally arranged at two ends of the cutting ring fixing pipe for directly installing the cutting ring to package the soil sample, so that overlarge volume and overweight of the sample are avoided, excessive laboratory space is occupied, zero disturbance before the sample is operated on a machine for experiment is realized, the soil sample is not damaged before the experiment, the real condition of the original soil layer is reflected by the experiment data, and the undistorted experiment data is ensured.
Compared with the prior art, the utility model have following technical advantage:
1. the collecting device is arranged on an inner pipe joint of the rope core drill through the extension pipe, so that the use is convenient, and the interchangeability is good;
2. the application of the check valve group in the sampling process of the collecting device enables the sampling process to be carried out smoothly, the sample cannot be damaged by external air or slurry, and the check valve group is closed in the process of salvaging the collecting device after sampling is finished, so that the soil sample is prevented from falling;
3. the cutting ring of system appearance in with the laboratory is integrated to collection system, directly uses the cutting ring fixed tube both ends of installation cutting ring to install the sealed encapsulation soil sample of plastics additional, realizes zero disturbance before the experiment of the sample computer, guarantees that the soil sample is not destroyed before the experiment and the true condition of original soil layer of experimental data reflection, has ensured that experimental data is undistorted.
Drawings
FIG. 1 is a block diagram of a wireline core drill drilling configuration;
FIG. 2 is a structural diagram of the sampling state of the collecting device of the present invention;
FIG. 3 is a structural view of a soil cutting guide knife with a clamp spring;
fig. 4 is an exploded view of the collecting device of the present invention;
FIG. 5 is a block diagram of a sample after packaging;
fig. 6 is a complete structural view of the wireline core drill.
Detailed Description
The invention will be described in further detail with reference to embodiments shown in the drawings.
As shown in fig. 2/4, the in-situ soil sample collection device based on the rope core drill is arranged on an inner pipe joint B of the rope core drill and comprises an extension pipe 1, a cutting ring fixing pipe joint 3, a check valve group 2, a cutting ring fixing pipe 4, a plurality of cutting rings 5 and a soil cutting guide cutter 6. One end of the extension pipe 1 is sleeved on the inner pipe joint, and the other end of the extension pipe is sleeved in one end of the cutting ring fixing pipe joint 3; a check valve group 2 is fixed in the end pipe of the cutting ring fixing pipe joint 3; the other end of the cutting ring fixing pipe joint 3 is sleeved in one end of the cutting ring fixing pipe 4; the other end of the cutting ring fixing tube 4 is sleeved on one end of the soil cutting guide knife 6; the other end of the soil cutting guide knife 6 is a cut end which is a conical surface; a plurality of cutting rings 5 are sequentially arranged between the lower end of the cutting ring fixing pipe joint 3 and the upper end of the soil cutting guide cutter 6 in the cutting ring fixing pipe 4, and the cutting ring fixing pipe 4 is provided with different lengths according to the number of the cutting rings 5. The collecting device is arranged on an inner pipe joint of the rope core drill through the extension pipe, so that the use is convenient, and the interchangeability is good.
As shown in fig. 4, the check valve block 2 includes a check valve cover 21, a stainless steel ball 22, and a check valve seat 23. Wherein the one-way valve cover 21 has a valve cover through hole 212 and a valve cover stepped surface 211. The one-way valve seat 23 is hollow in the middle, the upper part is provided with a valve cover fixing hole 231, the side surface is provided with a plurality of side through holes 232, and the bottom is provided with a valve hole 233. The stainless steel ball 22 is arranged in the valve hole 233; the one-way valve cover 21 is fixed in the valve cover fixing hole 231, the valve cover step surface 211 is pressed on the end surface of the one-way valve seat 23, the one-way valve seat 23 is fixed in the pipe of the cutting ring fixing pipe joint 3, and the pipe wall corresponding to the side through hole 232 is provided with a pipe wall hole 31 communicated with the side through hole.
In the sampling process of the collecting device, the check valve group is conducted to discharge air and slurry in the pipe; in the sampling end salvage collection device process, the check valve group is closed, the soil sample is guaranteed not to drop, air and slurry outside the pipe cannot be mixed into the soil sample, and the sample cannot be damaged. The specific action is that the stainless steel ball opens the valve hole under the thrust action of air or slurry in the upper pipe of the soil sample, and the air or slurry is discharged out of the pipe through the valve hole, the side through hole and the pipe wall hole; meanwhile, the stainless steel ball floats upwards to abut against the lower part of the valve cover through hole of the one-way valve cover. When the sampling is finished and the collecting device is fished, the stainless steel ball is pressed by the air or slurry on the upper part of the one-way valve cover and outside the pipe to close the valve hole.
The soil cutting guide knife 6 is suitable for sampling sandy soil or soil layers broken as soon as the plasticity is lower. When the soil layer is plastic clay, a clamp spring needs to be arranged in the soil cutting guide cutter 6, as shown in fig. 3, the clamp spring is used for clamping a soil sample entering the collecting device, the soil sample is guaranteed to only enter but not exit, and sampling failure caused by the fact that the soil sample slides out when the sampling device is lifted is avoided.
The collection method of the in-situ soil sample collection device based on the rope core drill comprises the following steps as shown in figure 1/2/5:
1) drilling a hole by using the rope coring drilling tool to the depth of the soil sample to be collected, and lifting the drill bit D away from the hole bottom for a certain distance to break the core sample, wherein the distance from the drill bit D to the hole bottom is greater than the distance from the soil sample collecting device to the drill bit D;
2) the inner pipe assembly with the rope core drill filled with the core sample is lifted out of the hole by a fishing tool carried by the drilling machine;
3) removing the part below an inner pipe joint B on an inner pipe assembly of the rope core drill, which comprises an inner pipe C and associated unnecessary parts;
4) mounting the pre-assembled acquisition device on an inner pipe joint B through an extension pipe 1;
5) putting the soil sample collecting device replaced in the previous step into a hole or feeding the soil sample collecting device into the hole by using a drilling machine with a fishing tool, wherein the soil sample collecting device passes through a drill bit D left in the hole and is positioned in the outer pipe A by using the existing positioning mechanism of the wire line core drill;
6) the drilling machine oil cylinder is used for supplying pressure, the drilling machine power head drives the drill rod and the outer pipe assembly to move downwards, force is transmitted to the collecting device through the positioning mechanism on the upper part of the inner pipe joint, and the soil sample collecting device is driven to carry out in-situ soil cutting and sampling; in the sampling process, according to the strength of soil, the drill rod and the outer pipe assembly can be driven to rotate by simple static pressure or increased rotation action of the power head;
7) after the soil sample is fully taken, the oil cylinder of the drilling machine is lifted to break the sample;
8) fishing the collecting device by using a fishing tool carried by the drilling tool;
9) the assembly comprising the cutting ring fixing pipe 4 is disassembled from the collecting device, and then the soil cutting guide knife 6 is disassembled;
10) and (3) cleaning redundant waste soil at two ends of the cutting ring fixing pipe, respectively covering plastic sealing covers 8 for sealing, sticking labels, and then sending to a laboratory.
As shown in fig. 6, the elastic catch stopper F abuts against the elastic catch G, that is, the inner tube assembly moves upward and is positioned, so that the inner tube assembly does not retreat when the core enters the inner tube C during the drilling process, and when the core of the inner tube is full and the fishing spear E is pulled by the fishing device, the elastic catch G contracts inward and is separated from the elastic catch stopper F, so that the inner tube assembly can be lifted to the ground; the seat ring I supports the suspension ring H, so that the inner pipe assembly does not move downwards any more, namely the inner pipe assembly is positioned downwards.
In the sampling process, when the soil layer is more compact, if the pure static pressure can not be pressed down, the outer pipe assembly can be rotated at a proper low speed to help to press in, and the soil sample collecting device does not rotate along with the drill bit assembly due to the bearing arranged on the drill bit assembly or the hole wall collapses to block the situation that the drill bit can not press down, and also can be rotated properly to eliminate the resistance at the drill bit so as to press in, and the purpose of rotation is to smoothly press in.
According to the in-situ soil sample collection method based on the rope core drill, sampling and sample preparation are completed at one time, so that the processes of collecting samples, packaging the samples, disassembling the samples in a laboratory and preparing the samples are saved, the working hours are reduced, the working efficiency is improved, and the labor intensity of operators is reduced; the plastic sealing cover is additionally arranged at two ends of the cutting ring fixing pipe for directly installing the cutting ring to package the soil sample, so that overlarge volume and overweight of the sample are avoided, excessive laboratory space is occupied, zero disturbance before the sample is operated on a machine for experiment is realized, various physical indexes of the soil sample are not damaged before the experiment, the real condition that the experiment data reflect the original soil layer is ensured, and the undistorted experiment data is ensured.
To sum up, the present invention, as described in the specification and the drawings, is made into a practical sample and tested by multiple use, and from the test result, it is proved that the utility model can achieve the intended purpose, and the practicability is undoubted. The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; any person skilled in the art can make local changes or modifications without departing from the scope of the present invention and the technical features and similar features disclosed in the present invention, and all equivalent embodiments using the technical content disclosed in the present invention belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides an in situ soil sample collection system based on rope coring drilling tool, its installs on the interior pipe connector of rope coring drilling tool, its characterized in that includes:
an extension pipe (1) one end of which is sleeved on the inner pipe joint;
one end of the cutting ring fixing pipe joint (3) is sleeved with the other end of the extension pipe (1);
one end of the cutting ring fixing pipe (4) is sleeved with the other end of the cutting ring fixing pipe joint (3);
the ring cutters (5) are sequentially arranged in the ring cutter fixing pipe (4); and
and the soil cutting guide knife (6) is sleeved in the other end of the cutting ring fixing pipe (4).
2. The in-situ soil sample collection device of claim 1, further comprising:
and the check valve group (2) is arranged in the pipe at the connecting end of the cutting ring fixing pipe joint (3) and the extension pipe (1) and conducts the cutting ring fixing pipe joint (3) from the inside to the outside in a one-way mode.
3. The in situ soil sample collection device of claim 2 wherein said check valve block (2) comprises:
a one-way valve cover (21) having a valve cover through hole (212) and a valve cover stepped surface (211);
the one-way valve seat (23) is hollow in the middle, the upper part of the one-way valve seat is provided with a valve cover fixing hole (231), the side surface of the one-way valve seat is provided with a plurality of side through holes (232), and the bottom of the one-way valve seat is provided with a valve hole (233); and
a stainless steel ball (22);
the stainless steel ball (22) is arranged in the valve hole (233), the one-way valve cover (21) is fixed in the valve cover fixing hole (231), the valve cover step surface (211) is pressed on the end surface of the one-way valve seat (23), and a pipe wall hole (31) communicated with the side through hole (232) is formed in the pipe wall corresponding to the fixed one-way valve seat (23).
4. The in-situ soil sample collection device of the wireline-based core drill as claimed in claim 1, wherein the cutting ring fixing tube (4) is provided with different lengths according to the number of the cutting rings (5).
5. The in-situ soil sample collection device of the wireline-based core drill as defined in claim 1, wherein the cut end of the soil cutting guide cutter (6) is a conical surface.
6. The in-situ soil sample collection device of the wireline-based core drill as claimed in claim 1, wherein the soil cutting guide cutter (6) is provided with a clamp spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020772701.8U CN212201968U (en) | 2020-05-11 | 2020-05-11 | In-situ soil sample collecting device based on rope coring drilling tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020772701.8U CN212201968U (en) | 2020-05-11 | 2020-05-11 | In-situ soil sample collecting device based on rope coring drilling tool |
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| CN212201968U true CN212201968U (en) | 2020-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472705A (en) * | 2020-05-11 | 2020-07-31 | 珠海市英格尔特种钻探设备有限公司 | In-situ soil sample collecting device and method based on rope core drilling tool |
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2020
- 2020-05-11 CN CN202020772701.8U patent/CN212201968U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472705A (en) * | 2020-05-11 | 2020-07-31 | 珠海市英格尔特种钻探设备有限公司 | In-situ soil sample collecting device and method based on rope core drilling tool |
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Address after: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee after: Guangdong Engel Geological Equipment Technology Co.,Ltd. Address before: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee before: ZHUHAI EGR SPECIAL DRILLING EQUIPMENT Co.,Ltd. |