CN211113567U - Vibrating wire type pore water pressure gauge embedding device - Google Patents
Vibrating wire type pore water pressure gauge embedding device Download PDFInfo
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- CN211113567U CN211113567U CN201921546026.0U CN201921546026U CN211113567U CN 211113567 U CN211113567 U CN 211113567U CN 201921546026 U CN201921546026 U CN 201921546026U CN 211113567 U CN211113567 U CN 211113567U
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- rod
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- pressure gauge
- water pressure
- pore water
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Abstract
The utility model discloses a device is buried underground to string vibration formula pore water pressure gauge, include the drilling rod, bury pole, protection tube underground and bury the rope underground, the bottom of drilling rod with bury the pole top underground and connect, bury underground the bottom of pole with the top of protection tube is connected, the bottom of burying underground the pole is provided with two openings, two the opening with bury underground the axis symmetry setting of pole, protection tube upper portion is provided with the through wires hole, the protection tube with bury underground the pole and connect the back the through wires hole with the opening overlaps, makes bury underground the rope and follow the opening passes the through wires hole, it has the scale mark to bury underground on the rope.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering ground treatment, concretely relates to string-vibrating pore water pressure gauge buries device underground.
Background
The pore water pressure gauge is used to measure the change of the pore water pressure in the stratum in a certain area and depth range in each working condition stage of the building construction process, so as to obtain the stress change parameters of the required stratum. Pore water pressure gauges can be classified into differential resistance type, vibrating wire type, piezoresistive type, resistance strain gauge and the like according to the types of instruments.
In soft soil foundations, pore water pressure gauges are generally embedded by drilling and are divided into single-hole embedding and one-time string embedding. During the pore-forming process, slurry is used to protect the wall to keep the stability of the pore wall, and after pore-forming, a pore water pressure gauge is buried in the drilled hole. Because the easy undergauge of pore diameter after the pore-forming in the soft soil, and downthehole mud also can produce buoyancy to the pore water pressure gauge of transferring and signal cable conductor, consequently there is the following problem in the quality of burying underground of pore water pressure gauge: 1) the signal cable marked with the length mark is a non-rigid scale, so that the embedding depth can be misled sometimes, and the pore water pressure gauge can not reach the set depth; 2) the pore water pressure gauge cannot be centered in the hole and cannot truly reflect the actual pore water pressure of the set soil layer. Therefore, the pore water pressure gauge embedding device which is light and handy in structure and easy to operate is designed, and the pore water pressure gauge embedding device has important engineering practice significance for improving the pore water pressure gauge embedding efficiency, protecting the pore water pressure gauge and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a device is buried underground to vibrating wire formula pore water pressure gauge, easy operation for the quality of burying underground of pore water pressure gauge improves greatly.
The utility model discloses a realize through following technical scheme: the utility model provides a device is buried underground to string-vibrating type pore water pressure gauge, includes the drilling rod, buries pole, protection tube underground and buries the rope underground, the bottom of drilling rod with bury underground the pole top and connect, bury underground the bottom of pole with the top of protection tube is connected, the bottom of burying underground the pole is provided with two openings, two the opening with bury underground the axis symmetry setting of pole, protection tube upper portion is provided with the through wires hole, the protection tube with bury underground the pole and connect the back the through wires hole with the opening overlaps, makes bury underground the rope and follow the opening passes the through wires hole, it has the scale mark to bury underground on the rope.
In the above technical solution, the buried rod is tubular.
In the above technical solution, the inner diameter of the lower portion of the burying rod is larger than the outer diameter of the upper portion of the protection pipe, and the upper portion of the protection pipe is embedded in the burying rod.
In the above technical scheme, the buried rod is in threaded connection with the drill rod.
In the technical scheme, the length of the embedded rod is 4-6 cm larger than that of the protection pipe.
In the above technical solution, the opening portion is a rectangular groove.
In the above technical solution, the diameter of the threading hole is smaller than the width of the opening part along the radial direction.
In the technical scheme, the drill rod is in a tubular shape, the diameter of the top end of the drill rod is larger than that of the bottom end of the drill rod, the bottom end of the drill rod is provided with external threads, and the top end of the drill rod is provided with internal threads.
In the technical scheme, the number of the drill rods is multiple, and the drill rods are connected with the internal thread at the top end of the lower drill rod through the external thread at the bottom end of the upper drill rod.
In the above technical scheme, the buried rope is a steel wire rope.
The utility model discloses an advantage and beneficial effect do:
this device is through setting up the opening underground on the pole, protection tube upper portion have with bury underground the opening complex through wires hole on the pole, have the line of burying underground of scale mark and pass opening and through wires hole, bury underground the pore water pressure timing and will bury underground the rope and fix with the protection tube, avoided because of burying underground the rope and be the condition of the buried depth of misleading for non-rigid scale. The pressure gauge is fixedly installed with the protection pipe, and is fixed with the embedding rod through embedding the rope, so that the pressure gauge is always fixed with the protection pipe and the embedding rod in the process of embedding the pressure gauge, and the embedding quality and efficiency are greatly improved. The device has the advantages of exquisite design, simple structure, lower manufacturing cost, simple operation, convenient loading and unloading and capability of effectively improving the working efficiency.
Drawings
FIG. 1 is a schematic view of the structure of the present invention during operation;
FIG. 2 is a schematic view of the connection of a drill pipe and a buried pipe;
fig. 3 is a schematic view showing a structure in which the pressure gauge is connected to the protection tube.
Wherein:
1: a drill rod, 2: burying rod, 2-1: opening, 3: void water pressure gauge, 4: burying rope, 5: protective tube, 5-1: and (6) threading holes.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.
Example one
A vibrating wire type pore water pressure gauge embedding device comprises a drill rod 1, an embedding rod 2, a protection tube 5 and an embedding rope 4, wherein the bottom end of the drill rod 1 is connected with the top end of the embedding rod 2, the bottom end of the embedding rod 2 is connected with the top end of the protection tube 5, the bottom end of the embedding rod 2 is provided with two opening parts 2-1, the two opening parts 2-1 are symmetrically arranged according to the axis of the embedding rod 2, the upper part of the protection tube 5 is provided with a threading hole 5-1, the threading hole 5-1 is overlapped with the opening part 2-1 after the protection tube 5 is connected with the embedding rod 2, so that the embedding rope 4 penetrates through the threading hole 5-1 from the opening part 2-1, the embedding rope 4 is provided with scale marks, the embedding rope 4 is a steel wire rope, the strength of the steel wire rope is high, the dead weight is light, the, is not easy to be broken off suddenly.
The using method comprises the following steps:
drilling at a position where a pore water pressure gauge 3 needs to be embedded, wherein the drilling depth of the soft soil foundation is 50cm less than the preset depth of the pore water pressure gauge 3;
step two, putting the permeable stone of the pore water pressure gauge 3 into boiled water in advance for boiling, and marking the cable conductor according to the preset embedding depth of the pore water pressure gauge 3;
step three, embedding the top end of the embedding rod 2 into the bottom of the drill rod 1;
step four, sleeving a pressure gauge 3 which is boiled in advance into a protection pipe 5, overlapping a threading hole 5-1 on the protection pipe 5 with an opening part 2-1 on the embedding rod 2, and sleeving the protection pipe 5 into the embedding rod 2;
fifthly, the embedding rope 4 penetrates through a threading hole 5-1 in the upper part of the protection pipe 5, is fixed at the end part of the protection pipe 5 and is held by hand through an opening part 2-1 of the embedding rod 2;
and step six, descending the drill rod 1 at a constant speed, and ensuring that the pore water pressure gauge 3 is lowered at a constant speed under the protection of the embedded rod 2 until the preset drilling depth is reached.
Example two
The embodiment is further optimized on the basis of the first embodiment.
Preferably, the buried rod 2 has a tubular shape, the inner diameter of the lower portion of the buried rod 2 is larger than the outer diameter of the upper portion of the protection pipe 5, and the upper portion of the protection pipe 5 is fitted into the buried rod 2. The embedding rod 2 is in threaded connection with the drill rod 1, so that the embedding rod 2 and the drill rod 1 can be freely detached, and the connection and the fastening can avoid inaccurate embedding depth caused by the fact that the embedding rod 2 is separated from the drill rod 1 in the process of embedding the pore water pressure gauge 3.
The length of burying pole 2 underground is than the length of protection tube 5 is big 4 ~ 6cm, buries the top of burying pole 2 underground and is connected with drilling rod 1, and 4 ~ 6 cm's surplus can guarantee to bury the top of burying pole 2 underground and drilling rod 1 zonulae occludens, has avoided simultaneously to lead to the fact to connect unstably because of burying pole 2 overlength underground.
EXAMPLE III
The embodiment is further optimized on the basis of the embodiment.
Preferably, the opening 2-1 is a rectangular groove, and the rectangular groove allows the bottom end of the embedding rod 2 to have tension, so that the top end of the protection pipe 5 can be embedded therein, and the protection pipe is also easily detached.
Preferably, the diameter of the threading hole 5-1 is smaller than the width of the opening 2-1 in the radial direction, and the embedded rope 4 can penetrate into the threading hole 5-1 through the opening 2-1.
Preferably, the drill rod 1 is tubular with a top end diameter larger than a bottom end diameter, the bottom end of the drill rod 1 is provided with an external thread, and the top end of the drill rod 1 is provided with an internal thread. The drilling rod 1 has a plurality ofly, and is a plurality of through the external screw thread of upper portion drilling rod 1 bottom end between the drilling rod 1 and the female connection at lower part drilling rod 1 top, the length of drilling rod 1 can freely change during threaded connection, both conveniently carries, can satisfy the requirement of different buried depth again.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.
Claims (10)
1. The utility model provides a device is buried underground to vibrating wire formula pore water pressure gauge which characterized in that: comprises a drill rod (1), an embedding rod (2), a protection pipe (5) and an embedding rope (4), the bottom end of the drill rod (1) is connected with the top end of the embedding rod (2), the bottom end of the embedding rod (2) is connected with the top end of the protection pipe (5), the bottom end of the embedding rod (2) is provided with two opening parts (2-1), the two opening parts (2-1) are symmetrically arranged along the axis of the embedding rod (2), the utility model discloses a rope protection device, including protection tube (5), protection tube (5) upper portion is provided with through wires hole (5-1), protection tube (5) with bury underground pole (2) and be connected the back through wires hole (5-1) with opening (2-1) overlap, make bury underground rope (4) follow opening (2-1) pass through wires hole (5-1), it has the scale mark to bury underground on rope (4).
2. The vibrating wire pore water pressure gauge embedding device according to claim 1, characterized in that: the embedding rod (2) is tubular.
3. The vibrating wire pore water pressure gauge embedding device according to claim 2, characterized in that: the inner diameter of the lower portion of the embedding rod (2) is larger than the outer diameter of the upper portion of the protection pipe (5), and the upper portion of the protection pipe (5) is embedded in the embedding rod (2).
4. The vibrating wire pore water pressure gauge embedding device according to claim 1, characterized in that: the embedded rod (2) is in threaded connection with the drill rod (1).
5. The vibrating wire pore water pressure gauge embedding device according to claim 1, characterized in that: the length of the embedding rod (2) is 4-6 cm larger than that of the protection pipe (5).
6. The vibrating wire pore water pressure gauge embedding device according to claim 1, characterized in that: the opening part (2-1) is a rectangular groove.
7. The burying device of a vibrating wire pore water pressure gauge according to claim 2 or 3, wherein: the diameter of the threading hole (5-1) is smaller than the width of the opening part (2-1) along the radial direction.
8. The vibrating wire pore water pressure gauge embedding device according to claim 1, characterized in that: the drill rod (1) is tubular, the diameter of the top end of the drill rod is larger than that of the bottom end of the drill rod, the bottom end of the drill rod (1) is provided with external threads, and the top end of the drill rod (1) is provided with internal threads.
9. The vibrating wire pore water pressure gauge embedding device according to claim 1, characterized in that: the drilling rods (1) are multiple, and the drilling rods (1) are connected with the internal thread at the top end of the lower drilling rod (1) through the external thread at the bottom end of the upper drilling rod (1).
10. The vibrating wire pore water pressure gauge embedding device according to claim 1, characterized in that: the embedded rope (4) is a steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921546026.0U CN211113567U (en) | 2019-09-16 | 2019-09-16 | Vibrating wire type pore water pressure gauge embedding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921546026.0U CN211113567U (en) | 2019-09-16 | 2019-09-16 | Vibrating wire type pore water pressure gauge embedding device |
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| Publication Number | Publication Date |
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| CN211113567U true CN211113567U (en) | 2020-07-28 |
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| CN201921546026.0U Active CN211113567U (en) | 2019-09-16 | 2019-09-16 | Vibrating wire type pore water pressure gauge embedding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776949A (en) * | 2022-04-13 | 2022-07-22 | 中交第一航务工程局有限公司 | Pore water pressure sensor embedding method |
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2019
- 2019-09-16 CN CN201921546026.0U patent/CN211113567U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776949A (en) * | 2022-04-13 | 2022-07-22 | 中交第一航务工程局有限公司 | Pore water pressure sensor embedding method |
| CN114776949B (en) * | 2022-04-13 | 2024-02-09 | 中交第一航务工程局有限公司 | Pore water pressure sensor burying method |
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