CN109209403A - A kind of karsts developing area region multi-source geology BIM modeling anticipation guiding construction method - Google Patents
A kind of karsts developing area region multi-source geology BIM modeling anticipation guiding construction method Download PDFInfo
- Publication number
- CN109209403A CN109209403A CN201811363594.7A CN201811363594A CN109209403A CN 109209403 A CN109209403 A CN 109209403A CN 201811363594 A CN201811363594 A CN 201811363594A CN 109209403 A CN109209403 A CN 109209403A
- Authority
- CN
- China
- Prior art keywords
- karst
- model
- geology
- source
- anticipation
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
Abstract
The invention discloses a kind of karsts developing area region multi-source geology BIM to model anticipation guiding construction method, initially set up model of geological structure body, tunnel model and shield machine model, triplicity is carried out three-dimensional visualization fusion to show, shows the internal structure and filler information of the spatial positional information and karst between shield machine and karst.Then judge whether karst needs to dispose according to karst disposition range, the karst cave for needing to dispose is disposed in advance before shield-tunneling construction, while information update adjusts model after disposing according to karst.This method can not only carry out the three-dimensional display of technique engineering method, but also can be carried out the analogue simulation of shield driving and ground quality condition, and the spatial relationship of preparatory the case where showing geology and karst cave and the two and shield machine is accomplished that geology prejudges, disposed in advance, auxiliary construction decision.
Description
Technical field
The present invention relates to shield-tunneling construction safety risk management technical fields, and in particular to a kind of karsts developing area region multi-source
Matter BIM modeling anticipation guiding construction method.
Background technique
Underground space development is grown rapidly in recent years, and in subway work field, Shield Construction Technique is constructed in transit tunnel
It is used widely, in face of increasingly heavy Metro Construction task and engineering construction risk complicated and changeable, visits in the process
Suo Yanfa science, effective shield-tunneling construction safety, quality monitoring management technological means and method, it has also become Metro Tunnel is built
If the task of top priority of daily management mission.
In existing tunnel construction project, geological mapping data representation is different, and amateur construction personnel can not
Quickly grasp geological information, need by professional's data analyze with handle could grasp in front of solution cavity information, such point
Analysis and treatment process have seriously affected the construction speed in tunnel, and there are many uncontrollable factors, influence construction safety.
Summary of the invention
Anticipation guidance is modeled the technical problem to be solved in the present invention is to provide a kind of karsts developing area region multi-source geology BIM to apply
Work method carries out stratum using drill hole geologic data in geological mapping and CT scan data and solution cavity models, and assigns geology
Body and solution cavity parametric data make construction personnel intuitively check that shield machine is worked as using correlative measurement away from tool and cutting tool
The information such as spatial relationship, solution cavity structure, filler and disposal options between front position and solution cavity, effectively using at karst
It sets technique engineering method and instructs shield-tunneling construction, it is ensured that construction safety.
In order to solve the above technical problems, the present invention provides a kind of karsts developing area region multi-source geology BIM modeling anticipations to refer to
Construction method is led, method includes the following steps:
(1), model of geological structure body (step S100) is established；
(2), by the tunnel model and shield machine models coupling of model of geological structure body and foundation, and three-dimensional visualization fusion is carried out
It shows (step S400)；
(3), pass through the spatial positional information (step S401) between ranging tool display shield machine and karst；
(4), pass through the internal structure and filler information (step S402) of cutting tool display karst；
(5), judge whether karst needs to dispose (step S500) according to karst disposition range, do not need disposition and continue to construct
(step S502), needs to dispose matching disposal method (step S501), and disposal method is worked out according to karst disposing technique engineering method.
(6), disposal method is selected, while information adjustment model (step S502) after disposing according to karst.
The establishment process of model of geological structure body in the step (1) are as follows: using the profession developed based on microstation
Software Aglos GEO is processed multi-source geologic data and generates drilling；Further according to geologic data, in conjunction with drilling position
It sets, fitting generates stratum；The geologic data for drilling itself according to two, fitting generate the geological condition between drilling；Model essence
Degree can achieve 0.1 meter.
The method for building up of shield machine model in the step (2) are as follows: use soldworks software, supervised according to shield machine
It makes drawing and carries out fining modeling, modeling accuracy reaches LOD300.
The method for building up of tunnel model in the step (2) are as follows: Revit software is used, according to designing institute's construction drawing,
Fining modeling is carried out to tunnel, model accuracy reaches LOD300.
Karst in the step (4) disposes range are as follows: above duct pieces of shield tunnel and lateral outer profile extends out 3m, lower section
It is the main zone of influence that outer profile, which extends out 5m range,；Duct pieces of shield tunnel top and lateral outer profile outer 3-6m, lower section outer profile 5-10m
Range is time zone of influence；The solution cavity of this range interior diameter (long side or equivalent long) >=3m is required to reinforce.
Disposal method in the step (5) according to the solution cavity in process range and is filled with situation, can be divided into full-filling,
Half filling and unfilled three types.
The disposal method of the solution cavity of three types in the step (5) is specific as follows:
(1) without filling solution cavity and half filling solution cavity
It, without filling or half filling solution cavity, is first filled a vacancy hole using cement mortar, then added using sleeve valve barrel grouting greater than 2m
Gu；
To small 2m without filling or half filling solution cavity, then filled using slip casting；
(2) full packing solution cavity
It is filled and is reinforced using sleeve valve barrel grouting method, pressure is gradually increased, interval and repeatedly mud jacking；
Injecting paste material: periphery hole uses cement-sodium silicate double liquid, and medium pore is cement slurry.
Beneficial effects of the present invention: shield driving and geology analogue simulation are surveyed in combination by multi-source Review of geologic model building techniques
Data establishes geological model, by after geological model, tunnel model, shield machine model interaction 3DGIS location information with imported into
BIM platform shows the tunneling data of current shield machine, between shield machine and periphery geologic body and karst cave in real time on platform
Positional relationship, in the position that shield is not tunneled also, the case where showing geology and karst cave in advance and the two and shield machine
Spatial relationship is accomplished that geology prejudges, is disposed in advance, auxiliary construction decision.
Detailed description of the invention
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the flow chart of karsts developing area region multi-source geology BIM of the present invention modeling anticipation guiding construction method.
Fig. 2 is that karst disposes range schematic diagram.
Fig. 3 is karst classification processing process.
Specific embodiment
Below with reference to embodiment attached drawing, clear, complete description is carried out to technical solution of the present invention, it is clear that description
Embodiment is only a specific embodiment of the invention, the embodiment being not all of.Following embodiments be it is illustrative, no
Be it is restrictive, cannot be limited the scope of protection of the present invention with following embodiments.
Multi-source geology BIM modeling anticipation guiding construction method in karsts developing area region of the invention, passes through multi-source geologic data
Geological modeling is carried out, integrating tunnel model and shield model intuitively show the space between shield machine current location and solution cavity
The information such as relationship, solution cavity structure, filler and disposal options realize the side of guiding construction in conjunction with solution cavity disposing technique engineering method
Method.
Fig. 1 is the flow chart for the karsts developing area region multi-source geology BIM modeling anticipation guiding construction method that the present invention illustrates,
Illustrate below with reference to Fig. 1, prejudges the implementation process of guiding construction by multi-source Geologic modeling in karsts developing area region.
Firstly, establishing model of geological structure body: using the professional software Aglos GEO developed based on microstation, to more
Source geologic data is processed and generates drilling；Further according to geotechnical boring data, in conjunction with bore position, fitting generates ground
Layer；The geologic data for drilling itself according to two, fitting generate the geological condition between drilling；Including formation information and solution cavity
Reinforcing information, the model accuracies such as front and back can achieve 0.1 meter (step S100).
Then, establish tunnel model and shield machine model: the foundation of shield machine model uses soldworks software, according to
Shield machine prison makes drawing and carries out fining modeling, and modeling accuracy reaches LOD300.The foundation of tunnel model uses Revit software,
According to designing institute's construction drawing, fining modeling is carried out to tunnel, model accuracy reaches LOD300.Then by model of geological structure body,
After tunnel model and shield machine model light-weight technologg, (step S400) is shown in conjunction with three-dimensional visualization fusion is carried out.
Then, pass through spatial positional information (step S401) between ranging tool display shield machine and karst.
Then, pass through cutting tool display karst internal structure and filler information (step S402), filler information master
Express the filling type (filling, half fills, no filling) and its filled media (seawater, mud, detritus, Huo Zheban of karst cave
Half mud of seawater etc.).
So far, it completes to be modeled in karsts developing area region, show and the process of acquisition of information, it below will be to the letter of acquisition
Breath is analyzed, and carries out classification disposition to possible result.
Judge whether karst needs to dispose (step S500) according to karst disposition range.It does not need disposition and continues construction (step
Rapid S502).Need to dispose matching disposal method (step S501), disposal method is worked out according to karst disposing technique engineering method.
Karst disposes range are as follows: above duct pieces of shield tunnel and lateral outer profile extends out 3m, lower section outer profile extends out 5m range as main shadow
Ring area；Above duct pieces of shield tunnel and the outer 3-6m of lateral outer profile, lower section outer profile 5-10m range are time zone of influence；This range
The solution cavity of interior diameter (long side or equivalent long) >=3m is required to reinforce.
Then, disposal method is selected, while information adjustment model (step S502) after disposing according to karst.
Disposal method: for the solution cavity in process range, full-filling, half filling and unfilled three can be divided by being filled with situation
Seed type.The method of karst cave treatment is the construction methods such as Static Pressure Grouting, mortar injection.Slip casting totality sequence of construction follows " first
In after outer, first big after small, cement slurry after first mortar " principle, lower layer's solution cavity reprocessing upper layer will first be handled to multilayer karst cave.
(1) without filling solution cavity and half filling solution cavity
It, without filling or half filling solution cavity, is first filled a vacancy hole using cement mortar, then added using sleeve valve barrel grouting greater than 2m
Gu.To small 2m without filling or half filling solution cavity, then filled using slip casting.
(2) full packing solution cavity
It is filled and is reinforced using sleeve valve barrel grouting method, pressure is gradually increased, interval and repeatedly mud jacking.
Injecting paste material: periphery hole uses cement-sodium silicate double liquid, and medium pore is cement slurry.
So far, it will pass through the anticipation of multi-source Geologic modeling geology to play the role of, realize guiding construction.
Embodiment
In Dalian Subway Line 5 engineering project-over strait section of mullet gulf tunneling shield BIM application item, using rock of the present invention
The method of molten development Regional And Multi-source Geologic modeling anticipation guiding construction, on the one hand carries out the three-dimensional display of technique engineering method, another party
Face carries out the analogue simulation process of shield driving and ground quality condition.
The foundation of model is carried out first, including multi-source geological model, shield machine model, tunnel duct piece model, is faced and built place
Then each model is carried out light-weight technologg by the building of the models such as model.Model after a variety of lightweights is imported into Dalian subway
No. five line Construction of Submarine Tunnel manage BIM cloud platform.
P1087 solution cavity is chosen, solution cavity volume is 82.0098m3, by cutting tool display karst internal structure with fill out
Object information is filled, solution cavity filler is that stream modeling shape clay presss from both sides decomposed rock clast, and solution cavity and current driving ring distance are 66.16m, according to
Karst disposition range judges the solution cavity in shield machine driving path range to be treated, and processing scheme is to use cement mortar grouting
Note is disposed, and is disposed before shield-tunneling construction to karst.Meanwhile it will be after the karst cave information and disposition in BIM cloud platform
Karst cave model be updated.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode can arbitrarily change in the reasonable scope.It within the knowledge of a person skilled in the art, can also be
Other many variations are made under the premise of not departing from present inventive concept.
Claims (7)
1. a kind of karsts developing area region multi-source geology BIM modeling anticipation guiding construction method, which is characterized in that this method include with
Lower step:
(1), model of geological structure body is established；
(2), by the tunnel model and shield machine models coupling of model of geological structure body and foundation, and three-dimensional visualization fusion exhibition is carried out
Show；
(3), pass through the spatial positional information between ranging tool display shield machine and karst；
(4), pass through the internal structure and filler information of cutting tool display karst；
(5), judge whether karst needs to dispose according to karst disposition range, do not need disposition and continue to construct, need to dispose matching
Disposal method, disposal method are worked out according to karst disposing technique engineering method；
(6), disposal method is selected, continues to construct, while information adjustment model after being disposed according to karst.
2. karsts developing area region multi-source geology BIM modeling anticipation guiding construction method described in accordance with the claim 1, feature exist
In the establishment process of the model of geological structure body in the step (1) are as follows: using the professional software developed based on microstation
Aglos GEO is processed multi-source geologic data and generates drilling；Intend further according to geologic data in conjunction with bore position
Symphysis is at stratum；The geologic data for drilling itself according to two, fitting generate the geological condition between drilling；Model accuracy can be with
Reach 0.1 meter.
3. karsts developing area region multi-source geology BIM modeling anticipation guiding construction method described in accordance with the claim 1, feature exist
In the method for building up of the shield machine model in the step (2) are as follows: use soldworks software, make drawing according to shield machine prison
Fining modeling is carried out, modeling accuracy reaches LOD300.
4. karsts developing area region multi-source geology BIM modeling anticipation guiding construction method described in accordance with the claim 1, feature exist
In the method for building up of the tunnel model in the step (2) are as follows: Revit software is used, according to designing institute's construction drawing, to tunnel
Road carries out fining modeling, and model accuracy reaches LOD300.
5. karsts developing area region multi-source geology BIM modeling anticipation guiding construction method described in accordance with the claim 1, feature exist
In the karst in the step (4) disposes range are as follows: above duct pieces of shield tunnel and lateral outer profile extends out 3m, lower section foreign steamer
It is the main zone of influence that exterior feature, which extends out 5m range,；Duct pieces of shield tunnel top and lateral outer profile outer 3-6m, lower section outer profile 5-10m range
For the secondary zone of influence；This range interior diameter >=3m solution cavity is required to reinforce, and wherein diameter includes long side or equivalent long.
6. karsts developing area region multi-source geology BIM modeling anticipation guiding construction method described in accordance with the claim 1, feature exist
In the disposal method in the step (5) according to the solution cavity in process range and is filled with situation, can be divided into full-filling, partly fill
It fills out and unfilled three types.
7. karsts developing area region multi-source geology BIM modeling anticipation guiding construction method, feature exist according to claim 6
In the disposal method of the solution cavity of the three types in the step (5) is specific as follows:
(1) without filling solution cavity and half filling solution cavity
It, without filling or half filling solution cavity, is first filled a vacancy hole using cement mortar, then reinforced using sleeve valve barrel grouting greater than 2m；
To small 2m without filling or half filling solution cavity, then filled using slip casting；
(2) full packing solution cavity
It is filled and is reinforced using sleeve valve barrel grouting method, pressure is gradually increased, interval and repeatedly mud jacking；
Injecting paste material: periphery hole uses cement-sodium silicate double liquid, and medium pore is cement slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363594.7A CN109209403A (en) | 2018-11-16 | 2018-11-16 | A kind of karsts developing area region multi-source geology BIM modeling anticipation guiding construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363594.7A CN109209403A (en) | 2018-11-16 | 2018-11-16 | A kind of karsts developing area region multi-source geology BIM modeling anticipation guiding construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109209403A true CN109209403A (en) | 2019-01-15 |
Family
ID=64994908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363594.7A Pending CN109209403A (en) | 2018-11-16 | 2018-11-16 | A kind of karsts developing area region multi-source geology BIM modeling anticipation guiding construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109209403A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454188A (en) * | 2019-07-10 | 2019-11-15 | 中交路桥北方工程有限公司 | The construction method and system of shield tunnel model based on BIM |
| CN110513115A (en) * | 2019-08-26 | 2019-11-29 | 中铁第六勘察设计院集团有限公司 | The method calculated automatically based on BIM platform tunnel when front ring and solution cavity distance |
| CN110904951A (en) * | 2019-12-24 | 2020-03-24 | 广州市住宅建设发展有限公司 | Construction method of underground continuous wall of water-rich karst development geology and grout stop wall structure |
| CN114295807A (en) * | 2021-12-29 | 2022-04-08 | 中铁十四局集团大盾构工程有限公司 | Experimental method for determining position of karst cave excavated by slurry shield |
| CN117108355A (en) * | 2023-08-29 | 2023-11-24 | 中铁十六局集团有限公司 | Determination method for handling of karst cave of large-diameter shield tunnel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103699731A (en) * | 2013-12-19 | 2014-04-02 | 中铁第一勘察设计院集团有限公司 | Method for constructing real scene model collaborative design platform of railway engineering |
| CN104196012A (en) * | 2014-08-28 | 2014-12-10 | 广州市第二建筑工程有限公司 | Karst cave processing method based on BIM |
| CN106372295A (en) * | 2016-08-29 | 2017-02-01 | 上海交通大学 | Method for determining safe horizontal distance between shield and karst cave in sand karst stratum |
| CN106547941A (en) * | 2016-09-23 | 2017-03-29 | 中冶集团武汉勘察研究院有限公司 | A kind of method that BIM Engineering Exploration Information Systems are built based on revit figure models |
| CN108108566A (en) * | 2018-01-02 | 2018-06-01 | 河南省交通规划设计研究院股份有限公司 | Vcehicular tunnel design method based on BIM |
-
2018
- 2018-11-16 CN CN201811363594.7A patent/CN109209403A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103699731A (en) * | 2013-12-19 | 2014-04-02 | 中铁第一勘察设计院集团有限公司 | Method for constructing real scene model collaborative design platform of railway engineering |
| CN104196012A (en) * | 2014-08-28 | 2014-12-10 | 广州市第二建筑工程有限公司 | Karst cave processing method based on BIM |
| CN106372295A (en) * | 2016-08-29 | 2017-02-01 | 上海交通大学 | Method for determining safe horizontal distance between shield and karst cave in sand karst stratum |
| CN106547941A (en) * | 2016-09-23 | 2017-03-29 | 中冶集团武汉勘察研究院有限公司 | A kind of method that BIM Engineering Exploration Information Systems are built based on revit figure models |
| CN108108566A (en) * | 2018-01-02 | 2018-06-01 | 河南省交通规划设计研究院股份有限公司 | Vcehicular tunnel design method based on BIM |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454188A (en) * | 2019-07-10 | 2019-11-15 | 中交路桥北方工程有限公司 | The construction method and system of shield tunnel model based on BIM |
| CN110513115A (en) * | 2019-08-26 | 2019-11-29 | 中铁第六勘察设计院集团有限公司 | The method calculated automatically based on BIM platform tunnel when front ring and solution cavity distance |
| CN110904951A (en) * | 2019-12-24 | 2020-03-24 | 广州市住宅建设发展有限公司 | Construction method of underground continuous wall of water-rich karst development geology and grout stop wall structure |
| CN114295807A (en) * | 2021-12-29 | 2022-04-08 | 中铁十四局集团大盾构工程有限公司 | Experimental method for determining position of karst cave excavated by slurry shield |
| CN117108355A (en) * | 2023-08-29 | 2023-11-24 | 中铁十六局集团有限公司 | Determination method for handling of karst cave of large-diameter shield tunnel |
| CN117108355B (en) * | 2023-08-29 | 2024-04-09 | 中铁十六局集团有限公司 | Determination method for handling of karst cave of large-diameter shield tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109209403A (en) | A kind of karsts developing area region multi-source geology BIM modeling anticipation guiding construction method | |
| Einstein | Decision Aids for Tunnelling | |
| Moye | Diamond drilling for foundation exploration | |
| CN106245626A (en) | A kind of hard formation churning driven enters method | |
| JP2018084076A (en) | Tunnel management system, tunnel management method, and tunnel management program | |
| CN109933867A (en) | A kind of geotechnical engineering investigation scheme dynamic optimization method | |
| CN103938617A (en) | Super-deep underground continuous wall and construction method thereof | |
| BRPI1004697A2 (en) | Method for directing well drilling operations using stress measurements on rock material, directing drilling well operations using stress measurements on rock material, and computer readable media for store instructions for directing well drilling operations using stress measurements on rock material | |
| CN104005415A (en) | Efficient grooving construction method for underground diaphragm wall in micro-weathered granite | |
| WO2023185734A1 (en) | Mine digital model construction method based on three-dimensional point cloud database | |
| CN110259458A (en) | The construction method that small-clear-distance tunnel Shallow Section double -side approach excavates | |
| CN106372297A (en) | Method for determining safe vertical distance between shield and karst cave in sand karst stratum | |
| CN109611109B (en) | Advanced control method and system for disaster source of tunnel TBM construction broken zone | |
| CN104196012A (en) | Karst cave processing method based on BIM | |
| CN104453705B (en) | Secondary forming method for large-hole-diameter cast-in-place pile rotary drilling rig | |
| CN106940453A (en) | It is a kind of to exist at underground utilities carry out shallow-layer integrated exploration method and device | |
| Hao et al. | Analysis of ground settlement caused by double-line TBM tunnelling under existing building | |
| CN109826633A (en) | Existing shield tunnel simulator and analogy method are worn under a kind of shield machine | |
| Yahya et al. | A review on methods of predicting tunneling induced ground settlements | |
| CN108868837A (en) | A kind of underground space building system | |
| CN116956420A (en) | Tunnel structure integrated analysis method based on three-dimensional geological model | |
| Orpen et al. | Error-proofing diamond drilling and drill core measurements | |
| CN206503149U (en) | A kind of ultra-deep steel pipe concrete continuous underground wall structure | |
| CN111506943B (en) | Method for guiding reinforcing construction of fractured rock mass by three-dimensional geological model | |
| CN108789769A (en) | A kind of underground cavity intelligence filling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190115 |