CN203081294U - Drilling tool of trenchless rig for guided construction in silty soil layer - Google Patents
Drilling tool of trenchless rig for guided construction in silty soil layer Download PDFInfo
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- CN203081294U CN203081294U CN 201320110495 CN201320110495U CN203081294U CN 203081294 U CN203081294 U CN 203081294U CN 201320110495 CN201320110495 CN 201320110495 CN 201320110495 U CN201320110495 U CN 201320110495U CN 203081294 U CN203081294 U CN 203081294U
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- drill bit
- drill
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Abstract
The utility model discloses a drilling tool of a trenchless rig for the guided construction in a silty soil layer. The drilling tool comprises a drill rod and a drill bit mounted on the bottom of the drill rod, wherein the drill bit comprises a drill bit body and a wedge-shaped drill bit plate, the drill bit plate is mounted on the bottom of the drill bit body, the drill bit body is a hollow steel pipe, a detector for locating the position and trend of the drill bit is mounted inside the drill bit body, the drill bit plate is provided with a plurality of slurry jet holes for jetting the slurry, and the inclination angle of the drill bit plate is 25 DEG. By improving the drill bit of a common drilling tool and increasing the mounting angle and size of the drill bit plate, the resistance of the drilling tool in passing through the silt seam is increased so as to enhance the deflection ability of the drilling tool in the silty soil to ensure smooth proceeding of the crossing tunneling engineering.
Description
Technical field
The utility model relates to a kind of drilling tool that is used for non-digging drill in the construction of silt soil strata guiding.
Background technology
Along with urban construction is constantly accelerated, newly-built in large quantities, reconstruction that municipal pipeline needs, excavate the influence that cause society on the road surface in order to reduce as far as possible, the application of no-excavation construction method on the town road pipe engineering more and more widely, wherein the guiding method of creeping into be one of a kind of non-excavation laying pipeline construction method with fastest developing speed.As everyone knows, the guiding construction technology is one of key factor of the small-sized trenchless pipelaying success or not of decision.In general, guide track is smooth-going more, helps the trenchless pipelaying construction more.But in practice of construction, often, must break the normal procedure and carry out the construction of limit curved guide owing to be subjected to the influence of on-the-spot landform, landforms, geological condition and original underground utilities branch.
In general soil layer, advance one meter with the interior beaming limit that can reach used drilling tool substantially, but when silt soil strata is passed through in boring, because the soil property deflecting ability is relatively poor, even the crooked requirement when advancing a drilling rod still can't satisfy design can't be by former planned course completion if at this moment still carry out the blindness construction.
The utility model content
For solving the deficiencies in the prior art, the utility model purpose is to provide a kind of drilling tool non-digging drill, that be suitable for the construction of silt soil strata guiding that is used for, and makes rig can finish the work that guiding is crept into smoothly in soft mud.
The utility model is that the technical scheme that the technical solution problem is adopted is:
A kind of drilling tool that is used for non-digging drill in the construction of silt soil strata guiding, the drill bit that comprises drilling rod and be installed in the drilling rod bottom, described drill bit comprises the drill bit plate of drill main body and wedge shape, the drill bit plate is installed in the bottom of drill main body, described drill main body is hollow steel pipe, drill main body inside is equipped with the probe that is used to locate bit location and trend, and described drill bit plate is provided with a plurality of gunniting holes that are used to spray mud, and the angle of inclination of described drill bit plate is 25 degree.The function of drill bit plate is to cut a duct that allows follow-up drilling rod to pass through in soil layer, so that finish the operation of pilot hole.Along with the action of drill power head, the corresponding action that drill bit can carry out: if dynamic head main spindle also advanced when both being rotated, drill bit can advance according to predetermined rectilinear direction substantially; If dynamic head main spindle does not rotate, advance bit body to advance by drilling rod, owing to be subjected to acting on the external force effect on the drill bit plate, the drill bit plate can carry out the change of angle according to the clock face that stops, thereby gets out curve or deflecting hole.Because the soil property of mud soil is softer, the support force of drill bit in soil is little, so be difficult to change direction in the process of deflecting hole.In the technical program, strengthen the deflecting ability of soft mud by the way that strengthens the resistance between drill bit and earth, the angle of inclination of current drill bit plate mostly is 15 degree greatly, and the angle of inclination of drill bit plate of the present utility model is 25 degree, and adopt large-sized drill bit plate, with this contact area that increases drill bit and earth, the resistance of drill bit in drilling process and between the earth increased.
Further, described probe is built-in with and is used for the wireless launcher of transmitting site information earthward.Wireless launcher can pass the stratum and send a kind of special electromagnetic wave, rest on the ground receiver and can accept these signals, and after treatment, allow the rig operator in time understand the present position of drill bit, the information that shows comprises drill bit trend, the degree of depth, build angle rate and towards signals such as angles so that in time adjust the orientation of drill bit, guarantees that drill bit creeps into according to the track that designs.Described probe exists in the seal member, prevents that mud from entering the probe inner chamber, causes probe malfunctioning, influences work.
Further, in the described drill bit pressure sensor that is used to detect slurry flows pressure is installed.The detected data of pressure sensor are sent to the brill hydraulic coupling table of rig by data wire, and the pressure registration changes with the size of flow velocity and drilling tool top nozzle.If too high, may illustrate that the gunniting hole of drill bit plate has blocked fully at the reading that bores on the hydraulic coupling table.
The utility model provides a kind ofly is used for non-digging drill and at the beneficial effect of the drilling tool of silt soil strata guiding construction is: by improving the drill bit of common drilling tool, increase the angle of inclination and the size of drill bit plate, drilling tool suffered resistance when passing through mud is increased, thereby strengthen the deflecting ability of drilling tool in the mud soil property, guarantee that crossing construction can carry out smoothly.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is described further.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
With reference to Fig. 1, a kind of drilling tool that is used for non-digging drill in the construction of silt soil strata guiding that the utility model provides, the drill bit 2 that comprises drilling rod 1 and be installed in the drilling rod bottom, described drill bit 2 comprises the drill bit plate 22 of drill main body 21 and wedge shape, drill bit plate 22 is installed in the bottom of drill main body 21, described drill main body 21 is hollow steel pipe, drill main body 21 inside are equipped with the probe 23 that is used to locate bit location and trend, described drill bit plate 22 is provided with a plurality of gunniting holes 24 that are used to spray mud, and the angle of inclination of described drill bit plate 23 is 25 degree.The function of drill bit plate 23 is to cut a duct that allows follow-up drilling rod 1 to pass through in soil layer, so that finish the operation of pilot hole.Along with the action of drill power head, the corresponding action that drill bit 2 can carry out: if dynamic head main spindle also advanced when both being rotated, drill bit 2 can advance according to predetermined rectilinear direction substantially; If dynamic head main spindle does not rotate, advance bit body to advance by drilling rod, owing to be subjected to acting on the external force effect on the drill bit plate, drill bit plate 22 can carry out the change of angle according to the clock face that stops, thereby gets out curve or deflecting hole.Because the soil property of mud soil is softer, the support force of drill bit 2 in soil is little, so be difficult to change direction in the process of deflecting hole.In the technical program, improve the deflecting ability of soft mud by the way that strengthens resistance between drill bit 2 and earth, the angle of inclination of current drill bit plate 22 mostly is 15 degree greatly, and the angle of inclination of drill bit plate 22 of the present utility model is 25 degree, and adopt large-sized drill bit plate, with this contact area that increases drill bit 2 and earth, the resistance of drill bit 2 in drilling process and between the earth increased.
Described probe 23 is built-in with and is used for the wireless launcher of transmitting site information earthward.Wireless launcher can pass the stratum and send a kind of special electromagnetic wave, rest on the ground receiver and can accept these signals, and after treatment, allow the rig operator in time understand the present position of drill bit, the information that shows comprises drill bit trend, the degree of depth, build angle rate and towards signals such as angles so that in time adjust the orientation of drill bit 2, guarantees that drill bit 2 creeps into according to the track that designs.Described probe 23 exists in the seal member, prevents that mud from entering probe 23 inner chambers, causes probe 23 malfunctioning, influences work.
The pressure sensor 25 that is used to detect slurry flows pressure is installed in the described drill bit 2.Pressure sensor 25 detected data are sent to the brill hydraulic coupling table of rig by data wire, and the pressure registration changes with the size of flow velocity and drilling tool top nozzle.If too high, may illustrate that the gunniting hole of drill bit plate 22 has blocked fully at the reading that bores on the hydraulic coupling table.
The above is preferred embodiment of the present utility model, and the utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Claims (3)
1. one kind is used for the drilling tool that non-digging drill is constructed in the silt soil strata guiding, the drill bit (2) that comprises drilling rod (1) and be installed in drilling rod (1) bottom, described drill bit (2) comprises the drill bit plate (22) of drill main body (21) and wedge shape, drill bit plate (22) is installed in the bottom of drill main body (21), described drill main body (21) is hollow steel pipe, drill main body (21) inside is equipped with the probe (23) that is used to locate bit location and trend, described drill bit plate (22) is provided with a plurality of gunniting holes (24) that are used to spray mud, it is characterized in that: the angle of inclination of described drill bit plate (22) is 25 degree.
2. a kind of drilling tool that is used for non-digging drill in the construction of silt soil strata guiding according to claim 1, it is characterized in that: described probe (23) is built-in with and is used for the wireless launcher of transmitting site information earthward.
3. a kind of drilling tool that is used for non-digging drill in the construction of silt soil strata guiding according to claim 1 is characterized in that: the pressure sensor (25) that is used to detect slurry flows pressure is installed in the described drill main body (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110495 CN203081294U (en) | 2013-03-11 | 2013-03-11 | Drilling tool of trenchless rig for guided construction in silty soil layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110495 CN203081294U (en) | 2013-03-11 | 2013-03-11 | Drilling tool of trenchless rig for guided construction in silty soil layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081294U true CN203081294U (en) | 2013-07-24 |
Family
ID=48827145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320110495 Expired - Fee Related CN203081294U (en) | 2013-03-11 | 2013-03-11 | Drilling tool of trenchless rig for guided construction in silty soil layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081294U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356526A (en) * | 2018-11-07 | 2019-02-19 | 中国地质科学院勘探技术研究所 | A kind of continuous deflecting forming hole method of injecting type |
| CN109372431A (en) * | 2018-11-07 | 2019-02-22 | 广州海洋地质调查局 | One kind can continuous deflecting jet bit |
| CN110645033A (en) * | 2019-10-17 | 2020-01-03 | 中铁八局集团有限公司 | Device and method for deep grouting in sandy cobble stratum shield construction tunnel |
| CN112796764A (en) * | 2020-12-30 | 2021-05-14 | 龚伦 | Peripheral hole arc drilling construction method for controlling tunnel overexcavation |
-
2013
- 2013-03-11 CN CN 201320110495 patent/CN203081294U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356526A (en) * | 2018-11-07 | 2019-02-19 | 中国地质科学院勘探技术研究所 | A kind of continuous deflecting forming hole method of injecting type |
| CN109372431A (en) * | 2018-11-07 | 2019-02-22 | 广州海洋地质调查局 | One kind can continuous deflecting jet bit |
| CN109372431B (en) * | 2018-11-07 | 2024-07-05 | 广州海洋地质调查局 | Jet drill bit capable of continuously deflecting |
| CN110645033A (en) * | 2019-10-17 | 2020-01-03 | 中铁八局集团有限公司 | Device and method for deep grouting in sandy cobble stratum shield construction tunnel |
| CN112796764A (en) * | 2020-12-30 | 2021-05-14 | 龚伦 | Peripheral hole arc drilling construction method for controlling tunnel overexcavation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20190311 |