CN211144576U - Drilling arrangement structure for fitting outer contour section of tunnel structure - Google Patents
Drilling arrangement structure for fitting outer contour section of tunnel structure Download PDFInfo
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- CN211144576U CN211144576U CN201922240655.7U CN201922240655U CN211144576U CN 211144576 U CN211144576 U CN 211144576U CN 201922240655 U CN201922240655 U CN 201922240655U CN 211144576 U CN211144576 U CN 211144576U
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- tunnel
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- inclinometer
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- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000009933 burial Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model discloses a drilling arrangement structure for section fitting of tunnel structure outline relates to the tunnel that awaits measuring, its characterized in that: the drilling arrangement structure comprises at least three detection drill holes located on the same detection section, the detection section is perpendicular to the axis of the tunnel or intersected with the axis of the tunnel at a large angle, an inclinometer is arranged in the detection drill holes, an orthogonal guide groove is formed in the inner wall of the inclinometer, and an inclinometer capable of moving along the orthogonal guide groove is arranged in the inclinometer. The utility model has the advantages that this drilling arrangement structure is on the basis is touched in the probing, through having increased survey hole slope measurement and section projection process, greatly reduced detection error has improved the detection precision, forms the fit section through a plurality of drilling simultaneously, has overcome single drilling and has laid the unable not enough of fit tunnel outline of drilling at random, finally acquires accurate position, profile and the deformation of underground tunnel structure.
Description
Technical Field
The utility model relates to an underground structures detects technical field, concretely relates to drilling arrangement structure for section fitting of tunnel structure outline.
Background
For a large-buried-depth tunnel, conventional ground penetrating radar, seismic wave method and other nondestructive detection technologies can only detect the approximate position of the tunnel, certain errors exist, and the accurate buried depth and plane position of the tunnel are difficult to obtain. However, in practical application, due to the existence of many uncontrollable factors such as uneven ground softness, difficulty in accurately leveling a drilling machine and the like, the actual probe rod is difficult to reach a completely vertical state. When the buried depth is larger, the drill rod can even generate spiral distortion in the soil body, and at the moment, the actual length of the probe rod is obviously larger than the actual buried depth of the structure. Therefore, the depth of the buried part is judged only by the depth of the drill rod, the error of the depth of the buried part is uncontrollable, and the accurate position of the underground structure such as a tunnel is difficult to obtain. Meanwhile, single drilling or drilling which is not randomly arranged according to the section can not perform section fitting on the outer contour of the tunnel structure, and the fine deformation and displacement conditions of the tunnel structure can not be obtained.
Disclosure of Invention
The utility model aims at providing a drilling arrangement structure for tunnel structure outline section fitting according to above-mentioned prior art's weak point, this drilling arrangement structure is through arranging on the outline in the tunnel that awaits measuring that it is located same detection drilling and deviational survey pipe on detecting the section, combines drilling deviational survey and section projection, eliminates because the degree of depth error that drilling rod distortion and slope brought to realize the fitting of tunnel structure outline from the section, realize the meticulous detection to the tunnel deformation and the displacement condition.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a drilling arrangement structure for section fitting of tunnel structure outline, relates to the tunnel that awaits measuring, its characterized in that: the drilling arrangement structure comprises at least three detection drill holes located on the same detection section, the detection section is intersected with the axis of the tunnel, an inclinometer is arranged in the detection drill holes, an orthogonal guide groove is formed in the inner wall of the inclinometer, and an inclinometer capable of moving along the orthogonal guide groove is arranged in the inclinometer.
The bottom of the detection borehole is located on the structural outer surface of the tunnel.
The bottom of the inclinometer pipe is in contact with the outer surface of the tunnel structure.
The detection borehole is arranged within + -50 cm of a projection line from the detection cross-section to the ground.
One of the detection drill holes is arranged between +/-50 cm from the axis of the tunnel to the ground projection line, and the rest of the detection drill holes are respectively arranged on two sides of the axis of the tunnel.
The included angle between the detection section and the axis of the tunnel is 80-90 degrees.
The utility model has the advantages that: this drilling arrangement structure is on the probing basis, through the slope volume and the section projection process that have increased the measurement inspection hole, greatly reduced detection error has improved the detection precision, forms the fit section through a plurality of drilling simultaneously, has overcome the not enough of the unable fit tunnel outline of single drilling, has acquireed accurate position, profile and the deformation of underground tunnel structure.
Drawings
Fig. 1 is a schematic view of a drilling arrangement in embodiment 1 of the present invention;
fig. 2 is a schematic view of a drilling arrangement in embodiment 2 of the present invention;
fig. 3 is a schematic view of a drilling arrangement according to an embodiment of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:
referring to fig. 1-3, the labels 1-6 in the figures are: the device comprises the ground 1, a detection drill hole 2, an inclinometer pipe 3, a tunnel 4, a detection section 5 and an inclinometer 6.
Example 1: as shown in fig. 1 and fig. 3, the embodiment specifically relates to a drilling arrangement structure for fitting the outer contour section of the tunnel structure, the drilling arrangement structure comprises five detection drill holes 2 located on the same detection section 5, an inclinometer 3 is correspondingly arranged in each detection drill hole 2, an inclinometer 6 for inclinometer is arranged in each inclinometer 3, depth errors caused by the distortion and the inclination of a drill rod are eliminated by combining the drilling inclinometer and the section projection, the fitting of the outer contour of the tunnel structure is realized from the section, and the fine detection of the tunnel deformation and the displacement condition is realized.
As shown in fig. 1 and 3, the tunnel 4 in this embodiment is a target tunnel suspected of being deformed or damaged and requiring detection of an external contour state; the detection section 5 is a vertical plane perpendicular to the axis of the tunnel 4. Each detection borehole 2 is arranged near a projection line from the detection section 5 to the ground and is controlled to be within +/-50 cm, the bottom of each detection borehole 2 is drilled on the outer surface of the structure of the tunnel 4, it should be noted that, among the five detection boreholes 2, one detection borehole 2 is arranged right above the axis of the tunnel 4, and the rest detection boreholes 2 are symmetrically distributed on two sides and are respectively 1.675m and 3.35m away from the axis.
As shown in fig. 1 and 3, an inclinometer 3 is correspondingly arranged in each detection borehole 2, the bottom of the inclinometer 3 is arranged on the outer surface of the structure of the tunnel 4 to be contacted, and an orthogonal guide groove is formed in the inner wall surface of the inclinometer 3 to be matched with an inclinometer 6, so that the inclinometer 6 can move in the inclinometer 3.
As shown in fig. 1 and fig. 3, the precise detection of the outer surface profile of the tunnel 4 is realized by using the drilling arrangement structure in the embodiment, which specifically includes the following steps:
(1) the object to be detected in the embodiment is a tunnel 4, the outer diameter of the tunnel 4 is 6.7m, a detection section 5 is arranged on the ground above the tunnel 4, and the arrangement direction of the detection section 5 is perpendicular to the trend of the tunnel 4;
(2) five detection drill holes 2 are arranged on the detection section 5 at intervals, wherein the middle detection drill hole 2 is positioned right above the axis of the tunnel 4, the detection drill holes 2 at two sides are positioned at the positions 1.675m and 3.35m away from the axis, and drilling equipment is adopted to drill the outer surface of the tunnel 4 at the positions of the detection drill holes 2, as shown in figure 1;
(3) the inclinometer 3 is placed in the detection drill hole 2, after the inclinometer 3 is placed, the bottom end of the inclinometer 3 is ensured to be just in contact with the outer wall surface of the tunnel 4, and meanwhile, the total length from the orifice of the detection drill hole 2 to the bottom of the hole of the inclinometer 3 is recorded;
(4) placing an inclinometer 6 in the inclinometer 3, measuring deflection values of different depth points of the inclinometer 3, and calculating a three-dimensional space track of the inclinometer 3;
(5) projecting the three-dimensional space tracks of the inclinometers 3 in all the detection drill holes 2 onto a detection section 5, and fitting the outer structure contour of the tunnel 4 according to the depths of the bottoms of the five inclinometers 3 projected onto the detection section and the projected plane positions;
(6) besides, according to the outer contour data obtained by fitting, the deviation of the actual position of the tunnel 4 from the designed position in the vertical direction and the transverse direction can be obtained, and the deformation condition of the tunnel 4 can also be obtained.
The detection method in the embodiment can be applied to tunnel detection, and can also be applied to other underground pipelines or structures with large burial depth and certain detection working surfaces, and the detected parameters can be plane positions or deformation conditions except for top burial depth.
Example 2: as shown in fig. 2 and 3, the embodiment is different from the first embodiment in that the number of the detection boreholes 2 is different, only three detection boreholes 2 are used for detection, and in step (2), 3 detection boreholes 2 are arranged on the detection section 5, wherein the middle detection borehole 2 is positioned right above the axis of the tunnel 4, the detection boreholes 2 on the two sides are positioned at a distance of 1.675m from the axis, and the rest of the structure and the steps are the same.
The detection method in the embodiment can be applied to tunnel detection, and can also be applied to other underground pipelines or structures with large burial depth and certain detection working surfaces, and the detected parameters can be plane positions or deformation conditions except for top burial depth.
Claims (6)
1. The utility model provides a drilling arrangement structure for section fitting of tunnel structure outline, relates to the tunnel that awaits measuring, its characterized in that: the drilling arrangement structure comprises at least three detection drill holes located on the same detection section, the detection section is intersected with the axis of the tunnel, an inclinometer is arranged in the detection drill holes, an orthogonal guide groove is formed in the inner wall of the inclinometer, and an inclinometer capable of moving along the orthogonal guide groove is arranged in the inclinometer.
2. A drilling arrangement for cross-sectional fitting of an outer profile of a tunnel structure according to claim 1, wherein: the bottom of the detection borehole is located on the structural outer surface of the tunnel.
3. A drilling arrangement for cross-sectional fitting of an outer profile of a tunnel structure according to claim 1, wherein: the bottom of the inclinometer pipe is in contact with the outer surface of the tunnel structure.
4. A drilling arrangement for cross-sectional fitting of an outer profile of a tunnel structure according to claim 1, wherein: the detection borehole is arranged within + -50 cm of a projection line from the detection cross-section to the ground.
5. A drilling arrangement for cross-sectional fitting of an outer profile of a tunnel structure according to claim 1, wherein: one of the detection drill holes is arranged between +/-50 cm from the axis of the tunnel to the ground projection line, and the rest of the detection drill holes are respectively arranged on two sides of the axis of the tunnel.
6. A drilling arrangement for cross-sectional fitting of an outer profile of a tunnel structure according to claim 1, wherein: the included angle between the detection section and the axis of the tunnel is 80-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240655.7U CN211144576U (en) | 2019-12-14 | 2019-12-14 | Drilling arrangement structure for fitting outer contour section of tunnel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240655.7U CN211144576U (en) | 2019-12-14 | 2019-12-14 | Drilling arrangement structure for fitting outer contour section of tunnel structure |
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| Publication Number | Publication Date |
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| CN211144576U true CN211144576U (en) | 2020-07-31 |
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| CN201922240655.7U Active CN211144576U (en) | 2019-12-14 | 2019-12-14 | Drilling arrangement structure for fitting outer contour section of tunnel structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485539A (en) * | 2022-01-04 | 2022-05-13 | 中铁第四勘察设计院集团有限公司 | Tunnel section deformation measuring method and device and storage medium |
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2019
- 2019-12-14 CN CN201922240655.7U patent/CN211144576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485539A (en) * | 2022-01-04 | 2022-05-13 | 中铁第四勘察设计院集团有限公司 | Tunnel section deformation measuring method and device and storage medium |
| CN114485539B (en) * | 2022-01-04 | 2024-05-03 | 中铁第四勘察设计院集团有限公司 | Tunnel section deformation measuring method, device and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Wu Inventor after: Xie Yaxiong Inventor after: Hu Rao Inventor after: Huang Yongjin Inventor after: Wang Shuiqiang Inventor after: Cai Caijun Inventor after: Yang Feng Inventor after: Zhang Wei Inventor after: Li Zhu Inventor after: Dong Guanghui Inventor before: Liu Wu Inventor before: Hu Rao Inventor before: Huang Yongjin Inventor before: Wang Shuiqiang Inventor before: Cai Caijun Inventor before: Yang Feng Inventor before: Zhang Wei |
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| CB03 | Change of inventor or designer information | ||
| CP03 | Change of name, title or address |
Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |
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| CP03 | Change of name, title or address |