CN204530656U - A kind of deep water foundation ditch back silting monitoring system - Google Patents
A kind of deep water foundation ditch back silting monitoring system Download PDFInfo
- Publication number
- CN204530656U CN204530656U CN201520109732.4U CN201520109732U CN204530656U CN 204530656 U CN204530656 U CN 204530656U CN 201520109732 U CN201520109732 U CN 201520109732U CN 204530656 U CN204530656 U CN 204530656U
- Authority
- CN
- China
- Prior art keywords
- foundation trench
- throwing
- mud scum
- elevation
- silting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a kind of deep water foundation ditch back silting monitoring system, relate to sounding survey field.This deep water foundation ditch back silting monitoring system comprises: the first acquisition module, excavates the measurement elevation of the mud scum surface before rear and foundation trench throwing and mud scum bottom surface for obtaining foundation trench; Computing module, for the difference of the measurement elevation according to the mud scum surface after described foundation trench excavation and before foundation trench throwing and mud scum bottom surface, calculates the thickness of deep water foundation ditch back silting amount and the mud scum that back-silts.This system, by sounding survey before and throwing rear to foundation trench excavation, has reflected the situation of back-silting in foundation trench region accurately; Relative to diver's mensuration, densitometer method, and dual frequency sounder method, cost is little, and all standing, more accurately can reflect the situation of back-silting.
Description
Technical field
The utility model relates to sounding survey field, is specifically related to a kind of deep water foundation ditch back silting monitoring system.
Background technology
Foundation ditch back silting has a significant impact immersed tube tunnel tool for mounting, and current unit in charge of construction mainly contains about foundation ditch back silting monitoring method: diver feels method, the Density Measuring Instrument direct method of measurement, high differentiation.Diver feels method and generally adopts diver to slip into seabed to carry out the thickness manual measurement that back-silts; Densimeter method carries out the measurement of density depth section for adopting densometer; High differentiation generally adopts dual frequency sounder to carry out depth survey to after excavation and before throwing.
Diver's sampling method is representative poor, overallly cannot judge situation of back-silting.Densimeter method, operation is inconvenient and cost is higher.High differentiation, dual frequency sounder is that dot type is measured, and cannot form high density fathogram, between twice measurement, compare error is comparatively large, accurately can not reflect the situation of back-silting comprehensively.
Utility model content
For defect of the prior art, the utility model provides a kind of deep water foundation ditch back silting monitoring system, and this system accurately can learn the situation of back-silting of deep water foundation trench, for follow-up throwing provides foundation.
First aspect, the utility model additionally provides a kind of deep water foundation ditch back silting monitoring system, comprising:
First acquisition module, excavates the measurement elevation of the mud scum surface before rear and foundation trench throwing and mud scum bottom surface for obtaining foundation trench;
Computing module, for the difference of the measurement elevation according to the mud scum surface after described foundation trench excavation and before foundation trench throwing and mud scum bottom surface, calculates the thickness of deep water foundation ditch back silting amount and the mud scum that back-silts.
Optionally, described first acquisition module, specifically for:
The elevation on the mud scum surface after obtaining described foundation trench excavation by multibeam echosounder and before described foundation trench throwing.
Optionally, described first acquisition module, specifically for:
The elevation of the mud scum bottom surface after obtaining described foundation trench excavation by dual frequency sounder and before described foundation trench throwing.
Optionally, described system also comprises:
Second acquisition module, the difference of the elevation after excavating for the elevation before the described foundation trench throwing that obtains according to described multibeam echosounder and described foundation trench obtain described foundation trench excavate after silt amount to described foundation trench throwing.
Optionally, described computing module, specifically for:
Obtain the difference of the elevation before described foundation trench throwing according to the elevation before the described foundation trench throwing that described multibeam echosounder obtains and described dual frequency sounder, obtain the thickness to foundation ditch back silting amount before described foundation trench throwing and the mud scum that back-silts after described foundation trench excavation.
As shown from the above technical solution, the utility model proposes a kind of deep water foundation ditch back silting monitoring system, this system, by sounding survey before and throwing rear to foundation trench excavation, has reflected the situation of back-silting in foundation trench region accurately; Relative to diver's mensuration, densitometer method, and dual frequency sounder method, cost is little, and all standing, more accurately can reflect the situation of back-silting.
Accompanying drawing explanation
The structural representation of a kind of deep water foundation ditch back silting monitoring system that Fig. 1 provides for another embodiment of the utility model;
A kind of deep water foundation ditch back silting monitoring schematic diagram that Fig. 2 provides for the utility model one embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Fig. 1 shows the structural representation of a kind of deep water foundation ditch back silting monitoring system that the utility model embodiment provides, and as shown in Figure 1, this monitoring system comprises: the first acquisition module 11, computing module 12.
First acquisition module 11, excavates the measurement elevation of the mud scum surface before rear and foundation trench throwing and mud scum bottom surface for obtaining foundation trench;
Computing module 12, for the difference of the measurement elevation according to the mud scum surface after described foundation trench excavation and before foundation trench throwing and mud scum bottom surface, calculates the thickness of deep water foundation ditch back silting mud scum.
In specific implementation process, described first acquisition module 11, specifically for:
The elevation on the mud scum surface after obtaining described foundation trench excavation by multibeam echosounder and before described foundation trench throwing.
Described first acquisition module 11, also specifically for:
The elevation of the mud scum bottom surface after obtaining described foundation trench excavation by dual frequency sounder and before described foundation trench throwing.
Described system also comprises unshowned second acquisition module 13 in Fig. 1:
Second acquisition module 13, the difference of the elevation after excavating for the elevation before the described foundation trench throwing that obtains according to described multibeam echosounder and described foundation trench obtain described foundation trench excavate after silt amount to described foundation trench throwing.
Described computing module 12, specifically for:
Obtain the difference of the elevation before described foundation trench throwing according to the elevation before the described foundation trench throwing that described multibeam echosounder obtains and described dual frequency sounder, obtain the thickness to mud scum in silt amount before described foundation trench throwing after described foundation trench excavation.
A kind of deep water foundation ditch back silting monitoring schematic diagram that Fig. 2 provides for the utility model one embodiment, as shown in Figure 2, comprising: surveying vessel 1, dual frequency sounder 2 and multibeam echosounder 3.
Concrete, the elevation on the mud scum surface after obtaining described foundation trench excavation by multibeam echosounder and before described foundation trench throwing.
The elevation of the mud scum bottom surface after obtaining described foundation trench excavation by dual frequency sounder and before described foundation trench throwing.
Mud scum density is between 1050kg/m3 ~ 1260kg/m3, and the deposit that back-silts is mud scum deposition, and density is greater than 1260kg/m3, and multibeam echosounder reflecting surface is mud scum surface, and dual frequency sounder medium and low frequency reflecting surface is mud scum bottom surface.Hang dual frequency sounder at multi-beam surveying vessel board and carry out synchro measure, synchro measure object contributes to ensureing that dual frequency sounder and multibeam echosounder have identical measurement environment, reduces dual frequency sounder and multibeam echosounder relative error.
Measure after foundation trench excavation, dual frequency sounder low frequency measurement elevation is that (h1 is a series of spot height to h1, for bringing into conveniently, only quote with h1), it is H1 that multibeam echosounder measures elevation, use HYPACK software TIN Model module that multi-beam Bathymetric Data is carried out data extraction according to dual frequency sounder survey line, elevation is H1 ', then after foundation trench excavation, mud scum thickness is:
Hf1＝H1’-h1
Measure before throwing, dual frequency sounder low frequency measurement elevation is h2, and it is H2 that multibeam echosounder measures elevation, uses HYPACK software TIN Model module that multi-beam Bathymetric Data is carried out data extraction according to dual frequency sounder survey line, elevation is H2 ', then before foundation trench throwing, mud scum thickness is:
Hf2＝H2’-h2
The difference of the elevation after excavating according to the elevation before the described foundation trench throwing that described multibeam echosounder obtains and described foundation trench obtain described foundation trench excavate after silt amount to described foundation trench throwing, after foundation trench excavation to silt amount before foundation trench throwing be:
Hh＝H2-H1
The difference of the elevation before described foundation trench throwing is obtained according to the elevation before the described foundation trench throwing that described multibeam echosounder obtains and described dual frequency sounder, obtain the thickness to mud scum in silt amount before described foundation trench throwing after described foundation trench excavation, after foundation trench excavation to mud scum thickness in silt amount before foundation trench throwing be:
Hf3＝Hf2＝H2’-h2
Multi-beam Bathymetric Data is carried out data extraction according to dual frequency sounder survey line by above-mentioned use HYPACK software TIN Model module, the utility model embodiment, only for illustrating, does not limit the method adopting this module multi-beam Bathymetric Data to be carried out data extraction according to dual frequency sounder survey line.
Said system is by sounding survey before and throwing rear to foundation trench excavation, reflect the situation of back-silting in foundation trench region accurately, and by dual frequency sounder to sounding survey before throwing, mud scum and sedimental situation of back-silting in the thing that back-silts can be reflected, relative to diver's mensuration, densitometer method, and dual frequency sounder method, cost is little, and all standing, more accurately can reflect the situation of back-silting.
The detection method of said system comprises:
101, the mud scum surface after obtaining foundation trench excavation and before foundation trench throwing and the measurement elevation of mud scum bottom surface;
The difference of the mud scum surface after 102, excavating according to described foundation trench and before foundation trench throwing and the measurement elevation of mud scum bottom surface, calculates the thickness of deep water foundation ditch back silting amount and the mud scum that back-silts.
The utility model embodiment is measured before mainly excavating rear and foundation trench throwing to foundation trench, in concrete engineering project, may interval for some time after foundation trench excavation and before foundation trench throwing, therefore at the silt amount of foundation trench excavation foundation trench afterwards and before foundation trench throwing, likely difference is very large.
Dual frequency sounder in the utility model embodiment is low frequency dual frequency sounder, is mainly used for low frequency measurement mud scum bottom surface elevation.All dual frequency sounders in the utility model are low frequency dual frequency sounder, not only to illustrate one by one.
The utility model embodiment mainly adopts multibeam echosounder and dual frequency sounder to combine method, multibeam echosounder reflecting interface mud scum elevation of top surface, dual frequency sounder reflecting interface is mud scum bottom surface elevation, multibeam echosounder and dual frequency sounder combination measurement is carried out after foundation trench excavates and before throwing, can know by multibeam echosounder survey data the thing thickness that back-silts by inference, can be known by inference the thickness of mud scum by dual frequency sounder low frequency and the contrast of multibeam echosounder survey data.
The above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (5)
1. a deep water foundation ditch back silting monitoring system, is characterized in that, comprising:
First acquisition module, excavates the measurement elevation of the mud scum surface before rear and foundation trench throwing and mud scum bottom surface for obtaining foundation trench;
Computing module, for the difference of the measurement elevation according to the mud scum surface after described foundation trench excavation and before foundation trench throwing and mud scum bottom surface, calculates the thickness of deep water foundation ditch back silting amount and the mud scum that back-silts.
2. system according to claim 1, is characterized in that, described first acquisition module, specifically for:
The elevation on the mud scum surface after obtaining described foundation trench excavation by multibeam echosounder and before described foundation trench throwing.
3. system according to claim 2, is characterized in that, described first acquisition module, specifically for:
The elevation of the mud scum bottom surface after obtaining described foundation trench excavation by dual frequency sounder and before described foundation trench throwing.
4. system according to claim 3, is characterized in that, described system also comprises:
Second acquisition module, the difference of the elevation after excavating for the elevation before the described foundation trench throwing that obtains according to described multibeam echosounder and described foundation trench obtain described foundation trench excavate after silt amount to described foundation trench throwing.
5. system according to claim 4, is characterized in that, described computing module, specifically for:
Obtain the difference of the elevation before described foundation trench throwing according to the elevation before the described foundation trench throwing that described multibeam echosounder obtains and described dual frequency sounder, obtain the thickness to foundation ditch back silting amount before described foundation trench throwing and the mud scum that back-silts after described foundation trench excavation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109732.4U CN204530656U (en) | 2015-02-16 | 2015-02-16 | A kind of deep water foundation ditch back silting monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520109732.4U CN204530656U (en) | 2015-02-16 | 2015-02-16 | A kind of deep water foundation ditch back silting monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204530656U true CN204530656U (en) | 2015-08-05 |
Family
ID=53744679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520109732.4U Active CN204530656U (en) | 2015-02-16 | 2015-02-16 | A kind of deep water foundation ditch back silting monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204530656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652397A (en) * | 2015-02-16 | 2015-05-27 | 中交一航局第二工程有限公司 | Method and system for monitoring foundation trench back silting in deep water |
-
2015
- 2015-02-16 CN CN201520109732.4U patent/CN204530656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652397A (en) * | 2015-02-16 | 2015-05-27 | 中交一航局第二工程有限公司 | Method and system for monitoring foundation trench back silting in deep water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Review of AUV underwater terrain matching navigation | |
| Plets et al. | The use of a high-resolution 3D Chirp sub-bottom profiler for the reconstruction of the shallow water archaeological site of the Grace Dieu (1439), River Hamble, UK | |
| Quinn et al. | The role of time-lapse bathymetric surveys in assessing morphological change at shipwreck sites | |
| CN204676554U (en) | A kind of immersed tube subaqueous construction navigation system | |
| Xu | Measuring currents in submarine canyons: technological and scientific progress in the past 30 years | |
| CN208012618U (en) | A kind of sea pipe investigating system | |
| CN109085655B (en) | Underwater platform gravity measurement scheme and verification method | |
| CN103868493B (en) | A kind of depth datum geodetic height measuring method based on PPP technology | |
| Vanneste et al. | Hinlopen–Yermak Landslide, Arctic Ocean—Geomorphology, Landslide Dynamics, And Tsunami Simulations | |
| Campbell et al. | AUV technology for seabed characterization and geohazards assessment | |
| CN204676517U (en) | The in situ shear wave testing arrangement of ocean formation | |
| CN102721966A (en) | Below high precision depth-sounding method and system by coherent depth-sounding sonar | |
| CN103925904B (en) | A kind of ultra-short baseline setting angle deviation unbiased esti-mator method based on symmetrical survey line | |
| CN204530656U (en) | A kind of deep water foundation ditch back silting monitoring system | |
| Schmitt et al. | Characterizing uncertainties for quantifying bathymetry change between time-separated multibeam echo-sounder surveys | |
| CN104297790A (en) | Quantitative evaluation method for offset distribution in fluctuating submarine earthquake observation system | |
| US20130046472A1 (en) | Method of determining the relative position of two detectors at the bottom of the sea | |
| CN104652397A (en) | Method and system for monitoring foundation trench back silting in deep water | |
| JP2004271326A (en) | Seabed behavior measurement system | |
| CN110531441B (en) | Method for calculating ocean flow field by utilizing cold spring gas leakage and processing terminal | |
| CN104515499A (en) | Novel inland waterway cross section measuring system and measuring method thereof | |
| Xiong et al. | An effective method for submarine pipeline inspection using three-dimensional (3D) models constructed from multisensor data fusion | |
| CN103261525B (en) | For determining the method and apparatus of the sedimentary deposit volume in loading area in mixture | |
| CN206321338U (en) | Acoustic velocity measurement device under a kind of Real-time Water based on semisubmersible drilling platform accommodation instrument | |
| CN104280060A (en) | Method and device for measuring shape of mooring foundation installation mooring rope in seabed soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |