CN106896418A - A kind of detection method of underground utilities - Google Patents
A kind of detection method of underground utilities Download PDFInfo
- Publication number
- CN106896418A CN106896418A CN201710039212.4A CN201710039212A CN106896418A CN 106896418 A CN106896418 A CN 106896418A CN 201710039212 A CN201710039212 A CN 201710039212A CN 106896418 A CN106896418 A CN 106896418A
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- China
- Prior art keywords
- underground utilities
- open caisson
- detection method
- foundation pits
- underground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention discloses a kind of detection method of underground utilities, wherein, including step：A, smooth treatment is carried out to the place to be constructed；B, micro foundation pits are dug out in advance in the top in underground utilities location；C, open caisson is positioned in micro foundation pits；D, make well sinking to required position by soil digging；E, open caisson is rectified a deviation, make open caisson both sides parallel；F, trend and buried depth that underground utilities are determined by the exposed line conditions of above test pit at two.Detection method provided by the present invention, by miniature open caisson come accurately detecting depth of underground pipelines, its process is simple, easy to operate, construction volume is small, low cost.
Description
Technical field
The present invention relates to field of civil engineering, more particularly to a kind of detection method of underground utilities.
Background technology
As expanding economy and the progress of science and technology, urban underground space have become utility line net, it includes
Phone, electricity, gas, cable television, optical fiber, traffic signals, street lighting circuit, draining and flood protection device, water main and sewage
Pipe.And in some critical positions, big oil pipe and tracheae, national defense communication circuit, public transport and railway and vcehicular tunnel
Competition lower ground space.
When needs are in utility line（Underground utilities）Position build and during repaired item, then cause public utilities pipe
The destroyed risk of line is improved.Because the position of utility line or depth are inaccurate, record is typically poor.Some lifes
Service living is not all appeared in utility line plan even.This means physically scene determines the position of underground utilities service
Put, property and depth with reduce excavation and construction period to be not intended to the ability of the risk and consequence damaged be crucial.Current
In engineering construction, the pipeline for land burial often occur digs disconnected event by cruelty construction.Although national correlation department has
Clear and definite standard requirement, excavates to engineering construction particularly pipeline and proposes clear and definite specification and requirement, it is contemplated that China
The quality of the complete situation of the engineering data of various regions and construction party, the barbarous event excavated of pipeline still often occurs.
In the prior art, in urban geology exploration, investigating the method for underground utilities has the various conduit line maps of collection, scene to look into
See pipeline mark, physical prospecting investigation, etc. method.Because pipeline species is more, the multiple different ownership units of category collect buried pipe line chart
Difficulty is big, and most conduit line maps are old, and pipeline position is inaccurate or without new pipe laying line position.In many pipeline safety accidents,
The pipeline of destruction is in conduit line map and unmarked.Usual pipeline mark is fewer, and different pipeline marks are different, and some settings are hidden
It is secret to be difficult to find, have without mark, it is impossible to effectively investigate pipeline.
Art methods have following multiple defects in implementation process：Pipeline stake is in complicated job site
It is difficult to recognize the trend of pipeline, and is not easy to preserve good state for a long time.For going out the mark of earth's surface, it is necessary to take one
Fixed space, and increased construction volume and construction costs.The underground utilities vertical position precision of current Detection Techniques detection
Relatively low, detection of magnetic field can only roughly determine position, and for the region of the intensive intertexture of pipeline, detection of magnetic field effect is very undesirable.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of detection method of underground utilities, purport
Solving, existing detection method is great in constructing amount, cost is high, the low problem of precision.
Technical scheme is as follows：
A kind of detection method of underground utilities, wherein, including step：
A, smooth treatment is carried out to the place to be constructed；
B, micro foundation pits are dug out in advance in the top in underground utilities location；
C, open caisson is positioned in micro foundation pits；
D, make well sinking to required position by soil digging；
E, open caisson is rectified a deviation, make open caisson both sides parallel；
F, trend and buried depth that underground utilities are determined by the exposed line conditions of above test pit at two.
The detection method of described underground utilities, wherein, also include after the step F：
H, the quantity for indicating underground utilities, buried depth and purposes.
The detection method of described underground utilities, wherein, in the step A, smooth scope 1 ~ 3m bigger than open caisson lateral surface.
The detection method of described underground utilities, wherein, in the step B, using successively excavating from top to bottom, cut the earth suitable
Sequence is to dig periphery after first digging centre.
The detection method of described underground utilities, wherein, in the step C, the length of side of the side ratio open caisson of micro foundation pits
Big 10cm.
Beneficial effect：Detection method provided by the present invention, by miniature open caisson come accurately detecting depth of underground pipelines, its
Process is simple, easy to operate, construction volume is small, low cost.
Brief description of the drawings
Fig. 1 is structural representation when micro foundation pits are excavated in the present invention.
Fig. 2 is structural representation when open caisson is placed in the present invention.
Fig. 3 is caisson structure in the present invention and inner support welding schematic diagram.
Fig. 4 is the structural representation of open caisson inner support steel plate in the present invention.
Fig. 5 in the present invention the outer steel plate of open caisson overlap schematic diagram up and down.
Fig. 6 is structural representation when pipeline is detected in the present invention.
Specific embodiment
The present invention provides a kind of detection method of underground utilities, to make the purpose of the present invention, technical scheme and effect more
Clear, clear and definite, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used to
The present invention is explained, is not intended to limit the present invention.
A kind of detection method preferred embodiment of underground utilities provided by the present invention, it includes step：
S101, smooth treatment is carried out to the place to be constructed；
Smooth scope is greater than 1 ~ 3m of open caisson lateral surface, i.e., smooth place scope is bigger than open caisson, and each side spacing is 1 ~ 3m, example
2m is such as controlled to, unwrapping wire positioning is carried out after the leveling of place, positioning needs accurate.
S102, micro foundation pits are dug out in advance in the top in underground utilities location；
As shown in figure 1, excavating original miscellaneous soil in the top in underground utilities location 100, micro foundation pits 110 are dug out in advance；It is miniature
Using successively being excavated with pick and/or spade from top to bottom, meeting hard soil or bulk boulder can use the borehole mode of foundation ditch 110
Hammer and/or pricker are broken, and excavation sequence is to dig periphery after first digging centre.The soil dug out in hole is using lifting means vertical transport to ground
Face, is stacked into appointed place, prevents from polluting environment.Micro foundation pits 110 are shaped as tetragonal body structure, and open caisson below is also four
Cube structure.In Excavation Process, draining is carried out with reference to catch pit using gutter, to ensure foundation pit construction the need for.
After excavation of foundation pit terminates, can making sand bedding course again, sand bedding course thickness can be 2 meters, and sand bedding course can backfill using medium coarse sand, time
Filling out can be layered making by every layer of 50cm, plate vibration jolt ramming be used in watering by the water content of 15% percentage, in reaching
It is close, dry density is tested with core cutter method, dry density can be more than 1.56t/m3, compacting factor reaches 0.96.
S103, open caisson is positioned in micro foundation pits；
As shown in Fig. 2 open caisson 120 is positioned in the micro foundation pits 110 that step S102 is excavated.The length of side of micro foundation pits 110
It is bigger than the length of side of open caisson 120 10 centimetres respectively.With reference to shown in Fig. 2 to Fig. 4, the open caisson 120 includes the steel plate 121 of surrounding,
And the inner support between relative both sides steel plate 121 is disposed therein, welding side is passed through between the inner support and steel plate 121
Formula is connected, and the inner support includes the fixture 122 being arranged on both sides steel plate 121 and is connected between fixture 122
Connector 123.As shown in figure 5, the steel plate 121 is welded by reinforcing bar 124.Steel plate 121 has enough strength and stiffness, whole
The requirement of the tight not spillage of body stability and gap.Open caisson template should have enough strength and stiffness, resistance to overturning and seam
The requirement of the tight not spillage of gap, inner support can use groined type structure, and be aided with timber wedge and hold out against, and be easy to form removal.Specifically can be with
φ 14mm fix open caisson template to wearing bolt.
S104, make well sinking to required position by soil digging；
After the completion of open caisson 120 is in place, open caisson 120 is set steadily to sink by soil digging, if the insufficient height of open caisson 120, can connect next section
Open caisson 120 continues soil digging, so for example finds the underground utilities 130 of the position until open caisson 120 sinks to required position repeatedly
Position, as shown in Figure 6.
S105, open caisson is rectified a deviation, make open caisson both sides parallel；
The correction of open caisson 120 should be according to survey data with entangling, correction is to be dug partially to lopsided opposite side soil digging partially, until both sides are flat
Row sinks.Just the heavy stage should be according to " be sunk and at most dig less " for open caisson 120, and the principle of " heavy diggings many at least " is rectified a deviation in excavation.
S106, trend and buried depth that underground utilities are determined by the exposed line conditions of above test pit at two.
The spacing of test pit is determined according to field condition, buried pipe is inferred by the exposed line conditions of above test pit at two
The information such as the substantially trend and buried depth of line 130.If manually not yet verifying underground utilities 130 in prospect pit, continue to use iron
Spade is gently cut the earth, and can be recognized until underground utilities expose.Facilitate successive projects safety construction.
Also include after the step S106：
S107, the quantity for indicating underground utilities, buried depth and purposes.
After underground utilities 130 are dug out, the important informations such as quantity, buried depth, the purposes of underground utilities 130 are indicated in detail.
It should be appreciated that application of the invention is not limited to above-mentioned citing, and for those of ordinary skills, can
To be improved according to the above description or converted, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Shield scope.
Claims (5)
1. a kind of detection method of underground utilities, it is characterised in that including step：
A, smooth treatment is carried out to the place to be constructed；
B, micro foundation pits are dug out in advance in the top in underground utilities location；
C, open caisson is positioned in micro foundation pits；
D, make well sinking to required position by soil digging；
E, open caisson is rectified a deviation, make open caisson both sides parallel；
F, trend and buried depth that underground utilities are determined by the exposed line conditions of above test pit at two.
2. the detection method of underground utilities according to claim 1, it is characterised in that also include after the step F：
H, the quantity for indicating underground utilities, buried depth and purposes.
3. the detection method of underground utilities according to claim 1, it is characterised in that in the step A, smooth scope ratio
Big 1 ~ the 3m of open caisson lateral surface.
4. the detection method of underground utilities according to claim 1, it is characterised in that in the step B, using on to
Under successively excavate, excavation sequence for first dig centre after dig periphery.
5. the detection method of underground utilities according to claim 1, it is characterised in that in the step C, micro foundation pits
The big 10cm of the length of side of side ratio open caisson.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039212.4A CN106896418A (en) | 2017-01-19 | 2017-01-19 | A kind of detection method of underground utilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039212.4A CN106896418A (en) | 2017-01-19 | 2017-01-19 | A kind of detection method of underground utilities |
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| Publication Number | Publication Date |
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| CN106896418A true CN106896418A (en) | 2017-06-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710039212.4A Pending CN106896418A (en) | 2017-01-19 | 2017-01-19 | A kind of detection method of underground utilities |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174709A (en) * | 2019-05-06 | 2019-08-27 | 四川驿都建设工程质量检测有限公司 | Reinforcing bar survey meter detects auxiliary device and its application method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202672157U (en) * | 2012-06-15 | 2013-01-16 | 鲲鹏建设集团有限公司 | Pit structure in soft deep foundation pit |
| CN104005419A (en) * | 2014-06-23 | 2014-08-27 | 洛阳城市建设勘察设计院有限公司 | Box culvert structure and construction method through sedimentation construction |
| CN105700039A (en) * | 2016-01-20 | 2016-06-22 | 广州市城市规划勘测设计研究院 | Method for detecting underground pipe in urban road exploration construction |
| CN205636753U (en) * | 2016-05-27 | 2016-10-12 | 中国电建集团铁路建设有限公司 | Subway station open cut foundation pit retaining structure |
-
2017
- 2017-01-19 CN CN201710039212.4A patent/CN106896418A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202672157U (en) * | 2012-06-15 | 2013-01-16 | 鲲鹏建设集团有限公司 | Pit structure in soft deep foundation pit |
| CN104005419A (en) * | 2014-06-23 | 2014-08-27 | 洛阳城市建设勘察设计院有限公司 | Box culvert structure and construction method through sedimentation construction |
| CN105700039A (en) * | 2016-01-20 | 2016-06-22 | 广州市城市规划勘测设计研究院 | Method for detecting underground pipe in urban road exploration construction |
| CN205636753U (en) * | 2016-05-27 | 2016-10-12 | 中国电建集团铁路建设有限公司 | Subway station open cut foundation pit retaining structure |
Non-Patent Citations (3)
| Title |
|---|
| 刘占林 等: ""浅谈城市地下管线探测方法"", 《现代测绘》 * |
| 叶政青 等: "《沉井》", 30 November 1983, 中国建筑出版社 * |
| 金喜平 等: "《基础工程》", 30 April 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174709A (en) * | 2019-05-06 | 2019-08-27 | 四川驿都建设工程质量检测有限公司 | Reinforcing bar survey meter detects auxiliary device and its application method |
| CN110174709B (en) * | 2019-05-06 | 2020-11-10 | 四川驿都建设工程质量检测有限公司 | Auxiliary detection device for steel bar detector and using method thereof |
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Application publication date: 20170627 |
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| RJ01 | Rejection of invention patent application after publication |