CN109183823A - The dynamic design approach of curtain lower limit and device - Google Patents
The dynamic design approach of curtain lower limit and device Download PDFInfo
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- CN109183823A CN109183823A CN201811083280.1A CN201811083280A CN109183823A CN 109183823 A CN109183823 A CN 109183823A CN 201811083280 A CN201811083280 A CN 201811083280A CN 109183823 A CN109183823 A CN 109183823A
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- filling
- injection rate
- unit injection
- undermost
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The invention discloses a kind of curtain lower limit dynamic design approach and devices, comprising: obtains grout curtain hole and fills the unit injection rate of section grouting for undermost M in the filling section planned；If described undermost M fills in section and be greater than X times by filling stratum mean unit injection rate in the presence of the unit injection rate for filling section, increase new filling section in the lower section of the undermost M filling section, and update filling section planning.Curtain lower limit dynamic design approach provided by the present invention according to the real time data of the filling section grouting to grout hole, carries out dynamic adjustment to curtain lower limit, increases the probability thoroughly closed and leak solution crack under local erosion basis during grouting construction.
Description
Technical field
The present invention relates to hydraulic and hydroelectric engineering technical fields, in particular to a kind of curtain lower limit dynamic design approach
And device.
Background technique
The general river valley in the river of Karst Mountain is deep, and brae is steep, and The turbulent river crashes its way through, has and builds reservoir dam well
Shape condition.But the karst and Karst Leakage being accompanied, it is to build hydraulic and hydroelectric engineering in karst area to answer first
This solves the problems, such as, is the common method that karst area solves the problems, such as this using seepage proof curtain.Wherein, setting for seepage proof curtain
Depth is set, is usually determined in conjunction with on-site karstic development pattern, according to geological mapping data still, due to karst in early period
The complexity of engineering geology and hydrogeologic condition, particularity, can not be complete by the geological condition in seepage proof curtain area during prospecting
Portion finds out, it is clear to grasp, and local solution crack flow phenomenon may be still had within the scope of local erosion basis following certain depth, because
There is the case where corrosion channel can not all being closed in the minimum air velocity of the seepage proof curtain of this planning.
Summary of the invention
The purpose of the present invention is to provide a kind of curtain lower limit dynamic design approach and devices, during well cementing
The data of real-time monitoring, dynamic adjusts curtain depth, to solve the above problems.
First aspect present invention provides a kind of curtain lower limit dynamic design approach, comprising:
It obtains grout curtain hole and fills the unit injection rate of section grouting for undermost M in the filling section planned；
If described undermost M fills and there is the unit injection rate for filling section in section greater than by filling stratum mean unit injection rate
X times, then it is described it is undermost M filling section lower section increase new filling section, and update fill section planning.
Optionally, M=3, X=2.
Optionally, if described undermost M fills flat greater than by stratum is filled in the presence of the unit injection rate for filling section in section
X times of equal unit injection rate then increases new filling section in the lower section of the undermost M filling section, comprising:
It is described average single to judge whether the described undermost M unit injection rate for filling third from the bottom section of filling section in section is greater than
Twice of position injection rate；
If more than, then increase new filling section in the lower section for the filling section planned, and update fill section planning.
Optionally, judging whether the described undermost M unit injection rate for filling third from the bottom section of filling section in section is greater than
After twice of the mean unit injection rate, the method also includes:
If the described undermost M unit injection rate for filling third from the bottom section of filling section in section is infused no more than the mean unit
Enter twice of amount, then it is described to judge whether the described undermost M unit injection rate for filling second from the bottom section of filling section in section is greater than
Twice of mean unit injection rate；
If the described undermost M unit injection rate for filling second from the bottom section of filling section in section is injected greater than the mean unit
Twice of amount, then increase new filling section in the lower section for the filling section planned, and updates and fill section planning.
Optionally, judging whether the described undermost M unit injection rate for filling second from the bottom section of filling section in section is greater than
After twice of the mean unit injection rate, the method also includes:
If the described undermost M unit injection rate for filling second from the bottom section of filling section in section is infused no more than the mean unit
Enter twice of amount, then judges that described undermost M fills whether the unit injection rate that final stage fills section in section is greater than described put down
Twice of equal unit injection rate；
If described undermost M fills final stage in section and fills the unit injection rate of section greater than the mean unit injection rate
Twice, then increase new filling section in the lower section for the filling section planned, and update fill section planning；
If described undermost M fills final stage in section and fills the unit injection rate of section no more than mean unit injection
The filling section planned then is determined as final filling section and planned by twice of amount, and is determined in the final filling section planning
The baseline that final stage fills section is curtain lower limit.
Optionally, the unit of section grouting is filled for undermost M in the filling section planned in the acquisition grout curtain hole
Before injection rate, the method also includes:
It chooses and carries out grouting test with by location similar in the geology of stratum is filled, obtain and injected by the mean unit for filling stratum
Amount.
Second aspect of the present invention provides a kind of curtain lower limit dynamic design device, comprising:
Monitoring modular fills the unit of section grouting for undermost M in the filling section planned for obtaining grout curtain hole
Injection rate；
There is the unit injection rate for filling section in section greater than by filling stratum for filling at described undermost M in planning module
At X times of mean unit injection rate, increase new filling section in the lower section of the undermost M filling section, and update and fill section planning.
Optionally, M=3, X=2, the planning module are specifically used for:
It is described average to judge whether the described undermost three unit injection rates for filling third from the bottom section of filling section in section are greater than
Twice of unit injection rate；
It is infused in the unit injection rate that described undermost three fill third from the bottom section of filling section in section greater than the mean unit
When entering twice of amount, increase new filling section in the lower section for the filling section planned, and updates and fill section planning.
Optionally, the planning module is also used to:
It is not more than the mean unit in the unit injection rate that described undermost three fill third from the bottom section of filling section in section
At twice of injection rate, judge whether the described undermost three unit injection rates for filling second from the bottom section of filling section in section are greater than institute
Twice for stating mean unit injection rate；
It is infused in the unit injection rate that described undermost three fill second from the bottom section of filling section in section greater than the mean unit
When entering twice of amount, increase new filling section in the lower section for the filling section planned, and updates and fill section planning.
Optionally, the planning module is also used to:
It is not more than the mean unit in the unit injection rate that described undermost three fill second from the bottom section of filling section in section
At twice of injection rate, judge described undermost three fill the unit injection rates that final stage fills section in section whether be greater than it is described
Twice of mean unit injection rate；
Final stage in section is filled at described undermost three fills the unit injection rate of section greater than mean unit injection
Amount twice when, increase new filling section in the lower section for the fillings section planned, and update fill section plan；And
Final stage in section is filled at described undermost three fills the unit injection rate of section no more than mean unit note
When entering twice of amount, the filling section planned is determined as final filling section and is planned, and determines the final filling section planning
The baseline that middle final stage fills section is curtain lower limit.
Compared with the prior art, curtain lower limit dynamic design approach provided by the invention and device are with construction of anti-seepage curtain grouting
Based on the real-time unit injection rate for boring filling in the process, dynamic change is carried out to segment number is filled, to realize to curtain lower limit
Dynamic adjusts, and substantially increases the probability thoroughly closed and leak solution crack under local erosion basis, can effectively prevent reservoir
Occurs big karst leakage after water storage.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, alternative embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 shows the flow chart of curtain lower limit dynamic design approach provided by the present invention；
Fig. 2 shows another flow charts of curtain lower limit dynamic design approach provided by the present invention；
Fig. 3 shows the schematic diagram of curtain lower limit dynamic design device provided by the present invention.
Icon:
Monitoring modular -101；Planning module -102.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
The terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that packet
The process, method, article or equipment for including a series of elements not only includes those elements, but also including being not explicitly listed
Other element, or further include for elements inherent to such a process, method, article, or device.Do not limiting more
In the case where, the element that is limited by sentence "including a ...", it is not excluded that including process, method, the object of the element
There is also other identical elements in product or equipment.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
First embodiment
Grout curtain refers to having slurries or solution with bond after mobility, solidification, according to regulation
Proportion or concentration in the various joint fissures of injection rock mass, hole, hole and Cave, are formed continuous under pressure
Seepage proof curtain, to play consolidation and bond crack Cutting Rock, the purpose that prevents library water from largely exosmosing.Grout hole array pitch,
Hole depth, antiseepage and injecting process finished criteria selection, directly influence the control of curtain quality and engineering cost, wherein antiseepage curtain
The setting depth of curtain, complex problem when being seepage proof curtain design.
The impermeable stratum of karst area generally buries relatively deeply, when Anti-seeping technology area is without obvious water barrier, mostly uses suspension
Formula curtain.At this stage, the determination on karst area seepage proof curtain bottom circle, design phase early period is generally according to geological mapping data, knot
On-site karstic development pattern is closed, carries out control design case by 5~10m below deeply local erosion basis.But due to karst
The complexity of engineering geology and hydrogeologic condition, particularity, can not be complete by the geological condition in seepage proof curtain area during prospecting
Portion finds out, it is clear to grasp, and the present embodiment provides a kind of dynamic design approaches of curtain lower limit, carries out dynamic in the engineering construction stage
Design, according to the data of well cementing real-time monitoring, dynamic adjusts curtain depth, and local erosion basis part below is seeped
The biggish corrosion channel of leakage quantity is all closed, and big karst leakage occurs after preventing reservoir filling.
A kind of application scenarios of curtain lower limit dynamic design approach provided in this embodiment are to pass through drilling using grouting pump
Method is sent to the engineering treatment in rock cranny by cement grout or with cement slurries as main component, please refers to figure
1, this method comprises:
S11: it obtains grout curtain hole and fills the unit injection rate of section grouting for undermost M in the filling section planned.
The filling segment number of grout curtain hole planning is usually by determining grout curtain by geological mapping data in early period
The depth in hole is calculated according to each segment length for filling section of grout hole is 5m, it is hereby achieved that the filling number of segment of the grout hole of planning
Amount, it is generally the case that the baseline that grout hole final stage fills section is the lower limit of curtain, and the curtain lower limit of each grout hole is different
, the depth of each grout hole is also different.
S12: if undermost M fills and there is the unit injection rate for filling section in section greater than by filling stratum mean unit injection rate
X times, then undermost M fill section lower section increase new filling section, and update fill section planning.
In the construction process, the monitoring data that grout hole can be recorded in real time by recorder, are connected with biography on recorder
Sensor, can obtain grouting pressure (units MPa) in work progress, flow (unit L/min), maximum pressure (units MPa),
Density (unit g/cm3), accumulative cement injection amount (kg) etc..The accumulative cement injection amount of each filling section got is by the way that simply conversion can
It obtains each unit injection rate for filling section in grout hole and then needs basis when work progress proceeds to undermost M filling section
Undermost M fills the unit injection rate of either segment in section and compares with by the mean unit injection rate for filling stratum, if it exists
The unit injection rate for filling section is greater than X times of mean unit injection rate, then there is also offices below the curtain lower limit planned for explanation
Leakage biggish corrosion channel in portion's needs to continue to increase filling section below the curtain lower limit planned, after preventing reservoir filling
There is big karst leakage, the curtain that Dynamic Programming namely dynamically adjusts grout hole is carried out to the number of segment that fills of grout hole in the step
Curtain lower limit, wherein M is the integer greater than 1, X > 1.
Since engineering practice shows that still having local solution crack stream within the scope of local erosion basis following certain depth shows
As local corrosion channel may cause the leakage phenomenon after reservoir filling, therefore the method for above scheme description, in engineering construction
Stage carries out dynamic design, carries out real-time monitoring according to the data of the filling section grouting to grout hole, carries out to the filling section planned
Dynamic adjusts, to change the curtain lower limit of grout hole, substantially increase thoroughly close leaked under local erosion basis it is molten
The probability of gap, compared with the antiseepage for the permeability of surrounding rock characterization that the planning and designing stage is obtained using drilling level of ground water and packer permeability test
Lower limit is more specific and accurate.
Optionally, the value that the value of M is 3, X is 2, that is to say, that when carrying out dynamic adjustment to curtain lower limit, is judged most lower
Whether the unit injection rate of last three sections of fillings section of layer is greater than twice by filling stratum mean unit injection rate, fills section if it exists
Unit injection rate is greater than twice of mean unit injection rate, then the filling number of segment of dynamic Regeneration planning.
Specifically, one of embodiment of step S12 can be referring to Fig.2, include:
S121: judge whether the undermost three unit injection rates for filling third from the bottom section of filling section in section are greater than mean unit
Twice of injection rate.
S122: if more than new filling section is then increased in the lower section for the filling section planned, and update and fill section planning.
If the undermost three unit injection rates for filling third from the bottom section of filling section in section are greater than the two of mean unit injection rate
Times, then increase new filling section in the lower section for the filling section planned, and update and fill section planning.
S123: if being not more than, judge it is undermost three fill section in second from the bottom section filling section unit injection rate whether
Greater than twice of mean unit injection rate.
If undermost three fill the unit injection rate of third from the bottom section of filling section in section no more than mean unit injection rate
Twice, then judge whether the undermost three unit injection rates for filling second from the bottom section of filling section in section are greater than mean unit injection rate
Twice.
S124: if more than new filling section is then increased in the lower section for the filling section planned, and update and fill section planning.
If the undermost three unit injection rates for filling second from the bottom section of filling section in section are greater than the two of mean unit injection rate
Times, then increase new filling section in the lower section for the filling section planned, and update and fill section planning.
S125: if being not more than, judge whether the undermost three unit injection rates for filling final stage filling section in section are big
In twice of mean unit injection rate.
If undermost three fill the unit injection rate of second from the bottom section of filling section in section no more than mean unit injection rate
Twice, then judge that undermost three fill whether the unit injection rate that final stage fills section in section is greater than mean unit injection rate
Twice.
S126: if more than new filling section is then increased in the lower section for the filling section planned, and update and fill section planning.
If the undermost three unit injection rates for filling final stage filling section in section are greater than twice of mean unit injection rate,
Then increase new filling section in the lower section for the filling section planned, and updates and fill section planning.
S127: if being not more than, the filling section planned is determined as final filling section and is planned.
If undermost three fill two of unit injection rate no more than mean unit injection rate that final stage in section fills section
Times, then the filling section planned is determined as final filling section and planned, and determines that final stage fills section in final filling section planning
Baseline is curtain lower limit.
When the unit injection rate that final stage fills section is not more than twice of mean unit injection rate, then illustrate local erosion
Datum level localized seepage below measures biggish corrosion channel and has been closed substantially, does not need below current curtain lower limit again
Increase and fill section, fills number of segment as the filling number of segment of the final grout hole for what is finally planned, will finally plan that curtain lower limit is made
For final curtain lower limit.
In entire scheme, the unit injection rate that section monitors during grouting construction is filled according to undermost three,
When filling section grouting unit injection rate greater than by stratum mean unit injection rate twice is filled, dynamically increase in the case where the last one fills section
New filling section, and update again and fill number of segment and curtain lower limit, thoroughly close local erosion basis solution crack below.
It should be noted that after step 122, to the third last in step 121 fill next filling section of section into
Row perfusion, the section that fills next at this time is updated to the third last filling section that new undermost three fill in section, after update
Third last fill section, continue to execute step 121.
Optionally, before work progress, it is thus necessary to determine that by the mean unit injection rate for filling stratum, one of embodiment party
Formula is to choose the representative location same or similar with by stratum geology is filled to be tested, and obtains the mean unit for representing location note
Enter amount, since it is close with by stratum geology is filled, then will represent the mean unit injection rate in location as by the unit for filling stratum
Injection rate, the representative location of selection are located at by near filling stratum.
After the grouting construction process for completing a grout hole, sealing pores are carried out to the grout hole that grouting is completed, are started
With the construction for next grout hole of arranging in order, repeat the above steps S11-S12.
Above-mentioned step is described in detail with an example below.
Firstly, by the exploration data of early period, accurately grasping irrigated area geology as far as possible before to being in the milk by filling stratum
Situation, to determine the curtain depth of each drilling, it is generally the case that each segment length for filling section of drilling is 5m, thus according to the curtain of drilling
Curtain depth determines the filling number of segment N of the drilling.Also, before formal grouting construction, I sequence hole of selected section is real in advance as pilot hole
It applies, guide's pitch of holes is usually arranged as 24m~40m.Lay pilot hole purpose be in order to check or Supplementary Exploration data, and it is right
The curtain lower limit that early period determines carries out verification and validation, to be targetedly in the milk.The depth of pilot hole gos deep into curtain lower limit
1~2 filling section below.Due to the inhomogeneities and otherness of karsts developing area spatially, prospecting early period and before the later period is formally in the milk
The pilot hole of implementation, the geological condition in seepage proof curtain area can not all be found out, grasp it is clear.
Then, it chooses and carries out live grouting test with by location is represented similar in filling stratum geology, obtain this and represent location
Mean unit injection rate, as by fill stratum mean unit injection rate Bm.According to dividing sequence to encrypt principle, filled
When slurry construction, the round of each grout hole is divided into three sequences, constructs first to I sequence hole, has recorder in the construction process, in real time
Monitor grouting pressure, flow, maximum pressure, density, accumulative cement injection amount etc..
When the filling number of segment currently planned is N, fill boring to N-2 sections, N-2 sections are under the curtain planned at this time
The third last of limit fills section, and the accumulative cement injection amount for obtaining the filling section in real time can by accumulative cement injection amount divided by the segment length of the filling section
To obtain the unit injection rate B of the filling sectionn-2.For example, mean unit injection rate Bm=220kg/m, if N-2 sections of unit is infused
Entering amount is Bn-2=506.42kg/m, greater than by the mean unit injection rate B for filling stratumm2 times of=220kg/m, then by the grouting
Hole increases by 1 filling section, and number is N+1 sections, and updates the number for filling section again.
Continue to bore and fill N-1 sections, N-1 sections are third from the bottom section in the filling section planned, the unit note of this section at this time
Entering amount is Bn-1=1369.92kg/m is greater than by filling stratigraphic unit injection rate average value Bm2 times of=220kg/m, then by the filling
Slurry hole is further added by 1 filling section in the case where the last one fills section, and number is N+2 sections, and updates the number for filling section again.
Continue to bore and fill N sections, N sections are third from the bottom section in the filling section planned, the unit injection rate of this section at this time
For Bn=51.04kg/m is less than by filling stratigraphic unit injection rate average value Bm=220kg/m, therefore not under the last one filling section
It is further added by filling section.
Continue to bore and fill N+1 sections, N+1 sections are second from the bottom section in the filling section planned, the unit note of this section at this time
Entering amount is Bn+1=33.22kg/m is less than by filling stratigraphic unit injection rate average value Bm=220kg/m, therefore not at the last one
It fills and is further added by filling section under section.
Continue to bore and fill N+2 sections, N+2 sections are the final stage in the filling section planned, the unit injection of this section at this time
Amount is Bn+2=39.54kg/m is less than by filling stratigraphic unit injection rate average value Bm=220kg/m, therefore not in the last one filling
Filling section is further added by under section.
Finally, the baseline of the final stage for the filling number of segment planned that will eventually determine is determined as the final grout curtain hole
Curtain lower limit, i.e., in the above example, curtain lower limit can according to fill section Real-time Monitoring Data, that is, fill section unit note
Enter amount, realize that dynamic adjusts, the filling number of segment of the final grout hole is not the filling number of segment initially planned according to the geologic information of prospecting
N, but the filling number of segment N+2 that dynamic determines after adjusting, finally determining curtain lower limit is the curtain where the baseline of N+2 sections of filling sections
Curtain lower limit.
After the grouting construction process for terminating the filling hole, sealing pores are carried out to the grout hole, and according to above-mentioned steps
Start the construction with next hole of arranging in order.
Curtain lower limit dynamic design approach provided by the present invention fills real-time to bore during construction of anti-seepage curtain grouting
Based on unit injection rate, dynamic adjustment is carried out to curtain lower limit, substantially increases and thoroughly closes under local erosion basis
, there is big karst leakage after capable of effectivelying prevent reservoir filling in the probability for leaking solution crack.
Second embodiment
The present embodiment provides a kind of curtain lower limit dynamic design devices, referring to Fig. 3, including:
Monitoring modular 101 fills the list of section grouting for undermost M in the filling section planned for obtaining grout curtain hole
Position injection rate；
There is the unit injection rate for filling section in section greater than by filling ground for filling at described undermost M in planning module 102
At layer X times of mean unit injection rate, increase new filling section in the lower section of the undermost M filling section, and updates and fill section and advise
It draws.
Optionally, M=3, X=2, the planning module 102 are specifically used for:
It is described average to judge whether the described undermost three unit injection rates for filling third from the bottom section of filling section in section are greater than
Twice of unit injection rate；
It is infused in the unit injection rate that described undermost three fill third from the bottom section of filling section in section greater than the mean unit
When entering twice of amount, increase new filling section in the lower section for the filling section planned, and updates and fill section planning.
Optionally, the planning module 102 is also used to: being filled in section at described undermost three and is filled section for third from the bottom section
When unit injection rate is not more than twice of the mean unit injection rate, judge second from the bottom in undermost three fillings section
Whether the unit injection rate that section fills section is greater than twice of the mean unit injection rate；It is fallen in undermost three fillings section
When the unit injection rate that number second segment fills section is greater than twice of the mean unit injection rate, increase in the lower section for the filling section planned
Add new filling section, and updates and fill section planning.
Optionally, the planning module 102 is also used to: being filled in section at described undermost three and is filled section for second from the bottom section
When unit injection rate is not more than twice of the mean unit injection rate, final stage in undermost three fillings section is judged
Whether the unit injection rate for filling section is greater than twice of the mean unit injection rate；It is last in undermost three fillings section
When the unit injection rate of one section of filling section is greater than twice of the mean unit injection rate, increase in the lower section for the filling section planned new
Filling section, and update fill section planning；And final stage in section is filled at described undermost three and fills the unit injection rate of section not
When greater than twice of the mean unit injection rate, the filling section planned is determined as final filling section and is planned, and is determined
It is curtain lower limit that final stage, which fills the baseline of section, in the final filling section planning.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
Specific work process, no longer can excessively be repeated herein with reference to the corresponding process in preceding method.
The foregoing is merely alternative embodiments of the invention, are not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of curtain lower limit dynamic design approach characterized by comprising
It obtains grout curtain hole and fills the unit injection rate of section grouting for undermost M in the filling section planned；
If described undermost M fills and there is the unit injection rate for filling section in section greater than by the X for filling stratum mean unit injection rate
Times, then increase new filling section in the lower section of the undermost M filling section, and update and fill section planning.
2. curtain lower limit dynamic design approach according to claim 1, which is characterized in that M=3, X=2.
3. curtain lower limit dynamic design approach according to claim 2, which is characterized in that if the undermost M
It is greater than X times by filling stratum mean unit injection rate in the presence of the unit injection rate for filling section in a filling section, then in the undermost M
A lower section for filling section increases new filling section, comprising:
Judge whether the described undermost M unit injection rate for filling third from the bottom section of filling section in section is greater than the mean unit note
Enter twice of amount；
If more than, then increase new filling section in the lower section for the filling section planned, and update fill section planning.
4. curtain lower limit dynamic design approach according to claim 3, which is characterized in that judging the undermost M
Whether the unit injection rate of third from the bottom section of filling section is greater than after twice of the mean unit injection rate in a filling section, the side
Method further include:
If the described undermost M unit injection rate for filling third from the bottom section of filling section in section is not more than the mean unit injection rate
Twice, then judge it is described it is undermost M fill section in second from the bottom section filling section unit injection rate whether be greater than it is described average
Twice of unit injection rate；
If the described undermost M unit injection rate for filling second from the bottom section of filling section in section is greater than the mean unit injection rate
Twice, then increase new filling section in the lower section for the filling section planned, and updates and fill section planning.
5. curtain lower limit dynamic design approach according to claim 4, which is characterized in that judging the undermost M
Whether the unit injection rate of second from the bottom section of filling section is greater than after twice of the mean unit injection rate in a filling section, the side
Method further include:
If the described undermost M unit injection rate for filling second from the bottom section of filling section in section is not more than the mean unit injection rate
Twice, then judge described undermost M fill the unit injection rate that final stage fills section in section whether be greater than it is described average single
Twice of position injection rate；
If described undermost M fills two of unit injection rate greater than the mean unit injection rate that final stage in section fills section
Times, then increase new filling section in the lower section for the filling section planned, and update and fill section planning；
If described undermost M fills final stage in section and fills the unit injection rate of section no more than the mean unit injection rate
Twice, then the filling section planned is determined as final filling section and planned, and determined last in the final filling section planning
The baseline of one section of filling section is curtain lower limit.
6. curtain lower limit dynamic design approach according to claim 2, which is characterized in that in the acquisition grout curtain hole
In the filling section planned before the unit injection rate of undermost M filling section grouting, the method also includes:
It chooses and carries out grouting test with by location similar in the geology of stratum is filled, obtain by the mean unit injection rate for filling stratum.
7. a kind of curtain lower limit dynamic design device characterized by comprising
Monitoring modular fills the unit injection of section grouting for undermost M in the filling section planned for obtaining grout curtain hole
Amount；
Planning module, it is average greater than by stratum is filled for filling the unit injection rate that there is filling section in section at described undermost M
At X times of unit injection rate, increase new filling section in the lower section of the undermost M filling section, and update and fill section planning.
8. curtain lower limit dynamic design device according to claim 7, which is characterized in that M=3, X=2, the planning mould
Block is specifically used for:
Judge whether the described undermost three unit injection rates for filling third from the bottom section of filling section in section are greater than the mean unit
Twice of injection rate；
It is greater than the mean unit injection rate in the unit injection rate that described undermost three fill third from the bottom section of filling section in section
Twice when, increase new filling section in the lower section for the filling section planned, and update fill section planning.
9. curtain lower limit dynamic design device according to claim 8, which is characterized in that the planning module is also used to:
It is injected in the unit injection rate that described undermost three fill third from the bottom section of filling section in section no more than the mean unit
Amount twice when, judge it is described it is undermost three fill section in second from the bottom section filling section unit injection rates whether be greater than it is described put down
Twice of equal unit injection rate；
It is greater than the mean unit injection rate in the unit injection rate that described undermost three fill second from the bottom section of filling section in section
Twice when, increase new filling section in the lower section for the filling section planned, and update fill section planning.
10. curtain lower limit dynamic design device according to claim 9, which is characterized in that the planning module is also used to:
It is injected in the unit injection rate that described undermost three fill second from the bottom section of filling section in section no more than the mean unit
Amount twice when, judge it is described it is undermost three fill section in final stage filling section unit injection rates whether be greater than it is described average
Twice of unit injection rate；
Final stage in section is filled at described undermost three fills the unit injection rate of section greater than the mean unit injection rate
At twice, increase new filling section in the lower section for the filling section planned, and updates and fill section planning；And
Final stage in section is filled at described undermost three fills the unit injection rate of section no more than the mean unit injection rate
Twice when, the filling section planned is determined as final filling section and is planned, and is determined in the final filling section planning most
The baseline of latter section of filling section is curtain lower limit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811083280.1A CN109183823B (en) | 2018-09-18 | 2018-09-18 | Method and device for dynamically designing lower limit of curtain |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811083280.1A CN109183823B (en) | 2018-09-18 | 2018-09-18 | Method and device for dynamically designing lower limit of curtain |
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| CN109183823B CN109183823B (en) | 2021-02-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080260473A1 (en) * | 2007-04-17 | 2008-10-23 | Smith Eric W | Underground filling and sealing method |
| CN204530736U (en) * | 2015-03-25 | 2015-08-05 | 中国建筑西南勘察设计研究院有限公司 | High pressure grouting ring-type grid type pit waterproof curtain |
| CN105887886A (en) * | 2016-06-16 | 2016-08-24 | 中国水利水电第十工程局有限公司 | Strong karst development stratum curtain grouting construction method |
-
2018
- 2018-09-18 CN CN201811083280.1A patent/CN109183823B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080260473A1 (en) * | 2007-04-17 | 2008-10-23 | Smith Eric W | Underground filling and sealing method |
| CN204530736U (en) * | 2015-03-25 | 2015-08-05 | 中国建筑西南勘察设计研究院有限公司 | High pressure grouting ring-type grid type pit waterproof curtain |
| CN105887886A (en) * | 2016-06-16 | 2016-08-24 | 中国水利水电第十工程局有限公司 | Strong karst development stratum curtain grouting construction method |
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| CN109183823B (en) | 2021-02-26 |
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