CN108661044A - A kind of construction method of plastic draining board and soft foundation discharge fixing - Google Patents
A kind of construction method of plastic draining board and soft foundation discharge fixing Download PDFInfo
- Publication number
- CN108661044A CN108661044A CN201810646812.1A CN201810646812A CN108661044A CN 108661044 A CN108661044 A CN 108661044A CN 201810646812 A CN201810646812 A CN 201810646812A CN 108661044 A CN108661044 A CN 108661044A
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- plastic draining
- draining board
- board
- diaphragm seal
- laid
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- 229920003023 plastic Polymers 0.000 title claims abstract description 91
- 239000004033 plastic Substances 0.000 title claims abstract description 91
- 238000010276 construction Methods 0.000 title claims abstract description 57
- 239000012528 membrane Substances 0.000 claims abstract description 39
- 238000007596 consolidation process Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 21
- 239000004746 geotextile Substances 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 17
- 238000005086 pumping Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000005538 encapsulation Methods 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 10
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 208000019901 Anxiety disease Diseases 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 230000036506 anxiety Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to the realm of building construction, the construction method of especially a kind of plastic draining board and soft foundation discharge fixing.The present invention includes draining frame and filter membrane, and draining frame is made of integrally formed crossbearer and several vertical frames, and crossbearer and vertical frame intersect vertically setting, are equidistantly offered in vertical frame and easily cut slot, filter membrane is coated on crossbearer and vertical frame.Plastic draining board stable structure in the present invention, diversion and drainage performance are good, are easy to cut, time saving and energy saving, and fracture is smooth, are conducive to the connection with follow-up drainage pipeline.By using the construction method of the soft foundation discharge fixing of this plastic draining board of application so that the construction quality of discharging consolidation construction is more preferable, progress faster, to meet the needs of nervous duration, quality requirement high engineering.
Description
Technical field
The present invention relates to the realm of building construction, the construction party of especially a kind of plastic draining board and soft foundation discharge fixing
Method.
Background technology
In construction, the requirement for ground soil property is stringenter, and soil property is excessively soft, water content is high, void ratio
Poor such as soft in some geology such as strand, the lakes and marhshes and valley floor area of big or high compressibility geotechnic engineering, such as
Fruit is constructed without the discharging consolidation of ground, and building occurs depression or even caves in very risky.It is right in order to eliminate this hidden danger
It when this soft soil property carries out construction, often needs to carry out discharging consolidation construction, wherein needing to use plastic draining board progress
The diversion and draining of vertical direction, plastic draining board need artificially to be cut after with board-plugging device injection, are easy the modeling cut
Material draining harden structure relative mistake；Since plastic draining board needs in underground to bear great pressure, the knot of plastic draining board
Structure should have higher intensity and anti-pressure ability, though the plastic draining harden structure for being not easy cutting is opposite good, injection is but
Relatively slowly, the duration is influenced.And in some quality requirements height, the discharging consolidation construction work of duration anxiety, common plastics
Drain bar has been unable to meet requirement.In order to allow discharging consolidation constructs construction quality is more preferable, project progress is up to standard, need design one
The construction method of the soft foundation discharge fixing of kind novel plastic drain bar and this novel plastic drain bar of application.
Invention content
The object of the present invention is to provide a kind of plastic draining board, stable structure, diversion and drainage performance are good, are easy to cut
It is disconnected, it is time saving and energy saving, and fracture is smooth, is conducive to the connection with follow-up drainage pipeline；It has also been devised using this plastic draining board
Soft foundation discharge fixing construction method so that the construction quality of discharging consolidation construction is more preferable, progress faster, to meet
Duration anxiety, the demand of quality requirement high engineering.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of plastic draining board, including draining frame and filter membrane, the draining frame are erected by integrally formed crossbearer with several
Frame forms, and the crossbearer and vertical frame intersect vertically setting, and the vertical frame surface equidistantly offers and easily cuts slot, and the filter membrane coats
Outside crossbearer and vertical frame.
The joint place of plastic draining board above-mentioned, the crossbearer and filter membrane is provided with male part, the vertical frame and filter membrane
Joint place is also equipped with male part.
Plastic draining board above-mentioned offers arc surface in the male part, and the arc surface is located at male part and filter membrane
Joint place.
A kind of construction method of soft foundation discharge fixing is included the following steps using plastic draining board above-mentioned：
S1, surveying setting-out；
S2, the clear table in place and smooth：It is constructed using hydraulic fill sand, place is made to reach hydraulic reclamation elevation, then by bull-dozer by field
Ground is smooth；
S3 buries vertical drainage plate：Pass through board-plugging device injection plastic draining board；
S4 buries horizontal drainage pipeline：The chimney filter of embedded horizontal direction, the chimney filter is connect with plastic draining board, described
Chimney filter is buried by sand bedding course；
S5 buries monitoring instrument；
S6 sets envelope wall；
S7, installation and debugging vacuum pump, the vacuum pump are connect with chimney filter；
S8 is laid with diaphragm seal and encapsulation process：It is laid with non-woven geotextile and diaphragm seal, diaphragm seal periphery is sealed place
Reason；
S9, vacuum pump examination pumping and leak stopping；
S10, vacuum pump are formally evacuated；
S11 is classified preloading：It is laid with non-woven geotextile on diaphragm seal, and is layered preloading, waits for that foundation strength reaches subordinate's heap
It carries and carries out next stage preloading again after requiring；
S12, termination of pumping unloading：As the ground degree of consolidation >=90% or the continuous 5 days rate of settling≤2~3mm/d, vacuum is closed
It pumps and unloads.
The construction method of soft foundation discharge fixing above-mentioned, the step S3 specifically include following steps：
S31 before the plastic draining board carries out injection, first carries out examination with board-plugging device and beats, record technological parameter in the venue,
To finely tune speed of the board-plugging device to plastic draining board injection when；
S32 measures place and makes plate position, and makees telltale mark, and plate position deviation controls in ± 100mm, plate
Machine carries out injection in strict accordance with plate position to plastic draining board, and the plastic draining board can be applied by the way that more board-plugging devices are arranged
It beats；
S33, when injection plastic draining board, live metal of the setting equipped with dial hangs down needle on board-plugging device, to check
The verticality of plastic draining board injection, the perpendicularity deviation of plastic draining board is in 1.5% range；
S34, every board-plugging device is equipped with a plastic draining board and plugs length records instrument, while being equipped with a Quality Inspector, entirely
Face checks plate position error, verticality, injection depth, protruded length, the case where rewinding, it is ensured that complies with standard and to record rear removable
Lower of machine injection finds the complement within the scope of the 150mm of the plate position in time when injection is unqualified；
After the plastic draining board acceptance(check) of one section, the hole around plastic draining board is filled up with silt by S35, and
Compacting.
The construction method of soft foundation discharge fixing above-mentioned, the monitoring instrument in the step S5 are vacuum degree test probe,
The vacuum degree test probe is in 2000m2~2500m2In the range of at least arrange one；Sedimentation mark is additionally provided in the step S8,
Sedimentation mark is positioned on diaphragm seal, and one layer of non-woven geotextile of underlay is marked in the sedimentation, and ballast is simultaneously on settling base number of a tender seat
It is laid flat.
The construction method of soft foundation discharge fixing above-mentioned, the step S7 specifically include following steps：
S71, to ensure the vacuum degree in vacuum preloading area, 1000m2~1500m2In the range of at least configure a vacuum pump,
Construction period all vacuum pumps running at full capacity in 24 hours and prepares the >=appendage vacuum pump of total quantity 10%, using as vacuum
It is spare when pump damage；
S72, vacuum pump power are matched with demand, to avoid the vacuum degree after termination of pumping from reducing quickly, the vacuum pump and filter
It is additionally provided with check-valves and pipe valve on the pipeline of pipe connection.
The construction method of soft foundation discharge fixing above-mentioned, the step S8 specifically include following steps：
S81, the diaphragm seal need heat seal one-pass molding, the diaphragm seal to be at least laid with two layers, and diaphragm seal single layer is laid with, paving
If being first laid with one layer of non-woven geotextile before diaphragm seal as film lower protective layer；
S82, when diaphragm seal is laid with, construction personnel should wear soft sole in operation on diaphragm seal, often be laid with one layer of inspection hole
Hole breakage is glued after discovery and is mended in time；
S83, sealing film edge are embedded in depth >=1m in envelope wall.
Sand-proof wall is arranged in the construction method of soft foundation discharge fixing above-mentioned, the preloading surrounding.
Compared with prior art, the invention has the beneficial effects that：
1) present invention is by providing a kind of plastic draining board, and stable structure, diversion and drainage performance are good, are easy to cut, and saves
Shi Shengli, and fracture is smooth, is conducive to the connection with follow-up drainage pipeline；By using the weak soil of this plastic draining board of application
The construction method of foundation drainage consolidation so that the construction quality of discharging consolidation construction is more preferable, progress faster, it is tight to meet the duration
It opens, the demand of quality requirement high engineering；
2) by the way that male part is arranged on the crossbearer of plastic draining board and vertical frame so that the contact of crossbearer and vertical frame with filter membrane
Face bigger so that crossbearer and vertical frame are more preferable to the support effect of filter membrane, reduce crossbearer and vertical frame because with filter membrane contact surface
Filter membrane is damaged caused by product is small, support effect is poor；
3) by setting the contact surface of male part and filter membrane to arc surface so that contact of the male part with filter membrane is more flat
It is sliding so that filter membrane being more uniformly stressed in soil is conducive to effective draining of plastic draining board；
4) construction method provided by the invention that soft foundation discharge fixing is used for using plastic draining board passes through embedded packet
It includes vacuum degree test probe and sedimentation is marked on interior monitoring instrument, to grasp the vacuum degree situation in diaphragm seal, and settling mark can
The sedimentation situation for understanding ground is helped to be conducive to the control of construction quality to judge the degree of consolidation of ground；
5) by the way that check-valves and pipe valve are arranged between vacuum pump and chimney filter so that after vacuum pump termination of pumping, under diaphragm seal
Vacuum degree remain able to effectively be kept, reduce the when of replacing vacuum pump reaches time of predetermined vacuum level again；
6) by being laid with multi-layer sealed film, reduce that diaphragm seal breakage leads to that vacuum degree is difficult to maintain or reach standard can
It can property；And the non-woven geotextile under diaphragm seal avoids diaphragm seal and is directly contacted with subsoil stone, to reduce it is damaged can
It can property；By setting envelope wall but also the sealing performance of diaphragm seal is more preferable, and good sealing performance so that under diaphragm seal
Vacuum degree remains more preferable, is conducive to the development of discharging consolidation construction；
7) sand-proof wall is arranged by the surrounding in preloading, so that when blowing, the silt for reducing preloading flies upward and makes
The case where at polluting, so that engineering is more environmentally-friendly.
Description of the drawings
Fig. 1 is the structural schematic diagram of the plastic draining board in the present invention；
Fig. 2 is the structural schematic diagram that frame is drained in the present invention；
Fig. 3 is the structural schematic diagram of the present invention.
The meaning of reference numeral：1- draining framves, 2- filter membranes, 3- crossbearers, 4- vertical frames, 5- easily cut slot, 6- male parts, 7- circular arcs
Face, 8- plastic draining boards, 9- chimney filters, 10- envelope walls, 11- vacuum pumps, 12- diaphragm seals, 13- non-woven geotextiles, 14- check-valves,
15- pipe valves, 16- sand-proof walls.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific implementation mode
The embodiment of the present invention 1：A kind of plastic draining board is constituted as Figure 1-Figure 2, including draining frame 1 and filter membrane 2,
The draining frame 1 is made of integrally formed crossbearer 3 and several vertical frames 4, and the crossbearer 3 and vertical frame 4 intersect vertically setting, institute
It states 4 surface of vertical frame and equidistantly offers and easily cut slot 5, described easily to cut the cambered surface that slot 5 is in indent, the filter membrane 2 is coated on 3 He of crossbearer
Outside vertical frame 4, the filter membrane 2 forms apparent indent in easy cut at slot 5, consequently facilitating construction personnel carries out cutting work.
The joint place of the plastic draining board, the crossbearer 3 and filter membrane 2 is provided with male part 6, the vertical frame 4 and filter membrane 2
Joint place be also equipped with male part 6 so that the contact surface bigger of crossbearer 3 and vertical frame 4 and filter membrane 2 so that crossbearer 3 and perpendicular
Frame 4 is more preferable to the support effect of filter membrane 2, reduce crossbearer 3 and vertical frame 4 because with 2 contact area of filter membrane is small, support effect is poor causes
Filter membrane 2 it is damaged.
The plastic draining board, arc surface 7 is offered in the male part 6, and the arc surface 7 is located at male part 6 and filter
The joint place of film 2, arc surface 7 is so that male part 6 and the contact of filter membrane 2 are more smooth so that stress of the filter membrane 2 in soil is more
Uniformly, be conducive to effective draining of plastic draining board.
Embodiment 2：A kind of construction method of soft foundation discharge fixing, as shown in Figure 1-Figure 3, using the plastic draining
Plate includes the following steps：
S1, surveying setting-out；
S2, the clear table in place and smooth：It is constructed using hydraulic fill sand, place is made to reach hydraulic reclamation elevation, then by bull-dozer by field
Ground is smooth；
S3 buries vertical drainage plate：Pass through board-plugging device injection plastic draining board 8；
S4 buries horizontal drainage pipeline：The chimney filter 9 of embedded horizontal direction, the chimney filter 9 are connect with plastic draining board 8, institute
Chimney filter 9 is stated by sand bedding course to be buried；
S5 buries monitoring instrument；
S6 sets envelope wall 10；
S7, installation and debugging vacuum pump 11, the vacuum pump 11 are connect with chimney filter 9；
S8 is laid with diaphragm seal 12 and encapsulation process：It is laid with non-woven geotextile 13 and diaphragm seal 12,12 periphery of diaphragm seal carries out
Encapsulation process；
S9, the examination of vacuum pump 11 pumping and leak stopping；
S10, vacuum pump 11 are formally evacuated；
S11 is classified preloading：It is laid with non-woven geotextile 13 on diaphragm seal 12, and is layered preloading, under waiting for that foundation strength reaches
Grade preloading carries out next stage preloading again after requiring；
S12, termination of pumping unloading：As the ground degree of consolidation >=90% or the continuous 5 days rate of settling≤2~3mm/d, vacuum is closed
Pump 11 simultaneously unloads.
The construction method of the soft foundation discharge fixing, the step S3 specifically include following steps：
S31 before the plastic draining board 8 carries out injection, first carries out examination with board-plugging device and beats in the venue, record technique ginseng
Number, to finely tune speed of the board-plugging device to 8 injection of plastic draining board when；
S32 measures place and makes plate position, and makees telltale mark, and plate position deviation controls in ± 100mm, plate
Machine carries out injection in strict accordance with plate position to plastic draining board 8, and the plastic draining board 8 can be applied by the way that more board-plugging devices are arranged
It beats；
S33, when injection plastic draining board 8, live metal of the setting equipped with dial hangs down needle on board-plugging device, to check
The verticality of 8 injection of plastic draining board, the perpendicularity deviation of plastic draining board 8 is in 1.5% range；
S34, every board-plugging device is equipped with a plastic draining board 8 and plugs length records instrument, while being equipped with a Quality Inspector, entirely
Face checks plate position error, verticality, injection depth, protruded length, the case where rewinding, it is ensured that complies with standard and to record rear removable
Lower of machine injection finds the complement within the scope of the 150mm of the plate position in time when injection is unqualified；
S35 fills up the hole around plastic draining board 8 after 8 acceptance(check) of plastic draining board of one section with silt,
And it is compacted.
The construction method of the soft foundation discharge fixing, the monitoring instrument vacuum degree test probe in the step S5 are described
Vacuum degree test probe is in 2000m2~2500m2In the range of at least arrange one, the sedimentation mark is positioned on diaphragm seal 12, described
Sedimentation mark one layer of non-woven geotextile of underlay, and ballast and be laid flat on sedimentation base number of a tender seat.
The construction method of the soft foundation discharge fixing, the step S8 specifically include following steps：
S81, the diaphragm seal 12 need heat seal one-pass molding, the diaphragm seal 12 to be at least laid with two layers, 12 single layer of diaphragm seal
It is laid with, one layer of non-woven geotextile 13 is first laid with as film lower protective layer before being laid with diaphragm seal 12；
S82, when diaphragm seal 12 is laid with, construction personnel should wear soft sole in operation on diaphragm seal 12, often be laid with one layer of inspection
Hole breakage is looked into, glues and mends in time after discovery；
S83,12 edge of diaphragm seal are embedded in depth >=1m in envelope wall 10.
The preloading surrounding setting sand-proof wall 16.
Embodiment 3：A kind of construction method of soft foundation discharge fixing, as shown in Figure 1-Figure 3, using the plastic draining
Plate includes the following steps：
S1, surveying setting-out；
S2, the clear table in place and smooth：It is constructed using hydraulic fill sand, place is made to reach hydraulic reclamation elevation, then by bull-dozer by field
Ground is smooth；
S3 buries vertical drainage plate：Pass through board-plugging device injection plastic draining board 8；
S4 buries horizontal drainage pipeline：The chimney filter 9 of embedded horizontal direction, the chimney filter 9 are connect with plastic draining board 8, institute
Chimney filter 9 is stated by sand bedding course to be buried；
S5 buries monitoring instrument；
S6 sets envelope wall 10；
S7, installation and debugging vacuum pump 11, the vacuum pump 11 are connect with chimney filter 9；
S8 is laid with diaphragm seal 12 and encapsulation process：It is laid with non-woven geotextile 13 and diaphragm seal 12,12 periphery of diaphragm seal carries out
Encapsulation process；
S9, the examination of vacuum pump 11 pumping and leak stopping；
S10, vacuum pump 11 are formally evacuated；
S11 is classified preloading：It is laid with non-woven geotextile 13 on diaphragm seal 12, and is layered preloading, under waiting for that foundation strength reaches
Grade preloading carries out next stage preloading again after requiring；
S12, termination of pumping unloading：As the ground degree of consolidation >=90% or the continuous 5 days rate of settling≤2~3mm/d, vacuum is closed
Pump 11 simultaneously unloads.
The construction method of the soft foundation discharge fixing, the step S3 specifically include following steps：
S31 before the plastic draining board 8 carries out injection, first carries out examination with board-plugging device and beats in the venue, record technique ginseng
Number, to finely tune speed of the board-plugging device to 8 injection of plastic draining board when；
S32 measures place and makes plate position, and makees telltale mark, and plate position deviation controls in ± 100mm, plate
Machine carries out injection in strict accordance with plate position to plastic draining board 8, and the plastic draining board 8 can be applied by the way that more board-plugging devices are arranged
It beats；
S33, when injection plastic draining board 8, live metal of the setting equipped with dial hangs down needle on board-plugging device, to check
The verticality of 8 injection of plastic draining board, the perpendicularity deviation of plastic draining board 8 is in 1.5% range；
S34, every board-plugging device is equipped with a plastic draining board 8 and plugs length records instrument, while being equipped with a Quality Inspector, entirely
Face checks plate position error, verticality, injection depth, protruded length, the case where rewinding, it is ensured that complies with standard and to record rear removable
Lower of machine injection finds the complement within the scope of the 150mm of the plate position in time when injection is unqualified；
S35 fills up the hole around plastic draining board 8 after 8 acceptance(check) of plastic draining board of one section with silt,
And it is compacted.
The construction method of the soft foundation discharge fixing, the monitoring instrument in the step S5 are vacuum degree test probe, institute
Vacuum degree test probe is stated in 2000m2~2500m2In the range of at least arrange one；Sedimentation mark, institute are additionally provided in the step S8
It states sedimentation mark to be positioned on diaphragm seal 12, one layer of non-woven geotextile of underlay is marked in the sedimentation, and ballast is simultaneously on settling base number of a tender seat
It is laid flat.
The construction method of the soft foundation discharge fixing, the step S7 specifically include following steps：
S71, to ensure the vacuum degree in vacuum preloading area, 1000m2~1500m2In the range of at least configure a vacuum pump
11, construction period all vacuum pumps running at full capacity in 1124 hours and prepares the >=appendage vacuum pump 11 of total quantity 10%, to make
It is spare when being damaged for vacuum pump 11；
S72,11 power of vacuum pump is matched with demand, to avoid the vacuum degree after termination of pumping from reducing quickly, the vacuum pump 11
Check-valves 14 and pipe valve 15 are additionally provided on the pipeline being connect with chimney filter 9.
The construction method of the soft foundation discharge fixing, the step S8 specifically include following steps：
S81, the diaphragm seal 12 need heat seal one-pass molding, the diaphragm seal 12 to be at least laid with two layers, 12 single layer of diaphragm seal
It is laid with, one layer of non-woven geotextile 13 is first laid with as film lower protective layer before being laid with diaphragm seal 12；
S82, when diaphragm seal 12 is laid with, construction personnel should wear soft sole in operation on diaphragm seal 12, often be laid with one layer of inspection
Hole breakage is looked into, glues and mends in time after discovery；
S83,12 edge of diaphragm seal are embedded in depth >=1m in envelope wall 10.
The preloading surrounding setting sand-proof wall 16.
The operation principle of the present invention：The present invention is to cut slot 5 by the way that setting is easy in the vertical frame 4 of draining frame 1, and draining frame
Filter membrane 2 is coated on 1, forms a kind of novel plastic draining board.The plastic draining board stable structure, diversion and drainage performance are good,
It is easy to cut, it is time saving and energy saving, and fracture is smooth, is conducive to the connection with follow-up drainage pipeline.
By using the construction method of the soft foundation discharge fixing of this plastic draining board of application so that discharging consolidation is applied
The construction quality of work is more preferable, progress faster, to meet the needs of nervous duration, quality requirement high engineering.Wherein by
Hydraulic fill sand construction is carried out on Soft Soil Layer, place elevation is increased, then plastic draining board 8 and level side by the way that vertical direction is arranged
To chimney filter 9, and processing is sealed to place by diaphragm seal 12, then carry out by vacuum pump 11 vacuumizing the multistage heap of cooperation
It carries and presses to ground, so that the water of Soft Soil Layer and hydraulic reclamation layer of sand extrudes upwards through plastic draining board 8, and through horizontal direction
Chimney filter 9 in vacuum pump 11 by being discharged, so that the moisture discharge in soil property, strengthens the degree of consolidation of ground, to reach
The demand of later stage construction.Male part 6 is set wherein on the crossbearer 3 of plastic draining board 8 and vertical frame 4 so that crossbearer 3 and vertical frame
4 reduce 3 He of crossbearer with the contact surface bigger of filter membrane 2 so that crossbearer 3 and vertical frame 4 are more preferable to the support effect of filter membrane 2
Vertical frame 4 is because damaged with filter membrane 2 caused by 2 contact area of filter membrane is small, support effect is poor；By by the contact of male part 6 and filter membrane 2
Face is set as arc surface 7 so that male part 6 and the contact of filter membrane 2 are more smooth so that stress of the filter membrane 2 in soil is more equal
It is even, be conducive to effective draining of plastic draining board 8；Include that vacuum degree test probe and sedimentation are marked on interior monitoring instrument by burying,
To grasp the vacuum degree situation in diaphragm seal 12, and settling mark can help to understand the sedimentation situation of ground, to judge ground
The degree of consolidation of base is conducive to the control of construction quality.By the way that check-valves 14 and pipe valve are arranged between vacuum pump 11 and chimney filter 9
15 so that after 11 termination of pumping of vacuum pump, the vacuum degree under diaphragm seal 12 remains able to effectively be kept, and it is true to reduce replacement
Again reach the time of predetermined vacuum level when sky pump 11；By being laid with multi-layer sealed film 12, reducing 12 breakage of diaphragm seal causes
Vacuum degree is difficult to maintain or reach the possibility of standard；And the non-woven geotextile 13 under diaphragm seal 12 avoids diaphragm seal 12 directly
It is contacted with subsoil stone, to reduce damaged possibility；By setting envelope wall 10 but also the leakproofness of diaphragm seal 12
Can be more preferable, and good sealing performance so that the vacuum degree under diaphragm seal 12 remains more preferable, is conducive to discharging consolidation construction
Carry out；Sand-proof wall 16 is set by the surrounding in preloading, so that when blowing, the silt for reducing preloading flies upward and causes dirt
The case where dye, occurs, so that engineering is more environmentally-friendly.
Claims (9)
1. a kind of plastic draining board, which is characterized in that including draining frame (1) and filter membrane (2), the draining frame (1) by one at
The crossbearer (3) of type and several vertical frames (4) composition, the crossbearer (3) and vertical frame (4) intersect vertically setting, vertical frame (4) table
Face equidistantly offers and easily cuts slot (5), and the filter membrane (2) is coated on crossbearer (3) and vertical frame (4) is external.
2. plastic draining board according to claim 1, which is characterized in that the crossbearer (3) and the joint place of filter membrane (2) are set
It is equipped with male part (6), the vertical frame (4) and the joint place of filter membrane (2) are also equipped with male part (6).
3. plastic draining board according to claim 2, which is characterized in that offer arc surface on the male part (6)
(7), the arc surface (7) is located at the joint place of male part (6) and filter membrane (2).
4. a kind of construction method of soft foundation discharge fixing, using any plastic draining board of claims 1 to 3,
It is characterized in that, includes the following steps：
S1, surveying setting-out；
S2, the clear table in place and smooth：It is constructed using hydraulic fill sand, so that place is reached hydraulic reclamation elevation, then put down place by bull-dozer
It is whole；
S3 buries vertical drainage plate：Pass through board-plugging device injection plastic draining board (8)；
S4 buries horizontal drainage pipeline：The chimney filter (9) of embedded horizontal direction, the chimney filter (9) connect with plastic draining board (8),
The chimney filter (9) is buried by sand bedding course；
S5 buries monitoring instrument；
S6 sets envelope wall (10)；
S7, installation and debugging vacuum pump (11), the vacuum pump (11) connect with chimney filter (9)；
S8 is laid with diaphragm seal (12) and encapsulation process：It is laid with non-woven geotextile (13) and diaphragm seal (12), diaphragm seal (12) periphery
It is sealed processing；
S9, vacuum pump (11) examination pumping and leak stopping；
S10, vacuum pump (11) are formally evacuated；
S11 is classified preloading：It is laid with non-woven geotextile (13) on diaphragm seal (12), and is layered preloading, under waiting for that foundation strength reaches
Grade preloading carries out next stage preloading again after requiring；
S12, termination of pumping unloading：As the ground degree of consolidation >=90% or the continuous 5 days rate of settling≤2~3mm/d, vacuum pump is closed
(11) it and unloads.
5. the construction method of soft foundation discharge fixing according to claim 4, which is characterized in that the step S3 is specific
Include the following steps：
S31 before the plastic draining board (8) carries out injection, first carries out examination with board-plugging device and beats, record technological parameter in the venue,
To finely tune speed of the board-plugging device to plastic draining board (8) injection when；
S32 measures place and makes plate position, and makees telltale mark, and plate position deviation controls in ± 100mm, and board-plugging device is tight
Lattice carry out injection according to plate position to plastic draining board (8), and the plastic draining board (8) can be applied by the way that more board-plugging devices are arranged
It beats；
S33, when injection plastic draining board (8), live metal of the setting equipped with dial hangs down needle on board-plugging device, to check modeling
Expect the verticality of drain bar (8) injection, the perpendicularity deviation of plastic draining board (8) is in 1.5% range；
S34, every board-plugging device is equipped with a plastic draining board (8) and plugs length records instrument, while being equipped with a Quality Inspector, comprehensively
Check plate position error, verticality, injection depth, protruded length, the case where rewinding, it is ensured that can telephone-moving after complying with standard and recording
Lower of injection finds the complement within the scope of the 150mm of the plate position in time when injection is unqualified.
After plastic draining board (8) acceptance(check) of one section, the hole around plastic draining board (8) is filled up with silt by S35,
And it is compacted.
6. the construction method of soft foundation discharge fixing according to claim 4, which is characterized in that in the step S5
Monitoring instrument is vacuum degree test probe, and the vacuum degree test probe is in 2000m2~2500m2In the range of at least arrange one；The step
Sedimentation mark is additionally provided in rapid S8, the sedimentation mark is positioned on diaphragm seal (12), and one layer of nonwoven geotechnique of underlay is marked in the sedimentation
Cloth (13), and ballast and be laid flat on sedimentation base number of a tender seat.
7. the construction method of soft foundation discharge fixing according to claim 4, which is characterized in that the step S7 is specific
Include the following steps：
S71, to ensure the vacuum degree in vacuum preloading area, 1000m2~1500m2In the range of at least configure a vacuum pump (11),
Construction period all vacuum pumps running at full capacity in (11) 24 hours and prepares the >=appendage vacuum pump (11) of total quantity 10%, with
It is spare when being damaged as vacuum pump (11)；
S72, vacuum pump (11) power is matched with demand, to avoid the vacuum degree after termination of pumping from reducing quickly, the vacuum pump (11)
Check-valves (14) and pipe valve (15) are additionally provided on the pipeline being connect with chimney filter (9).
8. the construction method of soft foundation discharge fixing according to claim 4, which is characterized in that the step S8 is specific
Include the following steps：
S81, the diaphragm seal (12) need heat seal one-pass molding, the diaphragm seal (12) to be at least laid with two layers, are laid with diaphragm seal
(12) it is first laid with one layer of non-woven geotextile (13) before and is used as film lower protective layer；
S82, when diaphragm seal (12) is laid with, construction personnel should wear soft sole in operation on diaphragm seal (12), often be laid with one layer of inspection
Hole breakage is looked into, glues and mends in time after discovery；
S83, diaphragm seal (12) edge are embedded in depth >=1m in envelope wall (10).
9. the construction method of soft foundation discharge fixing according to claim 4, which is characterized in that the setting of preloading surrounding is anti-
Dust storm wall (16).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577310A (en) * | 2018-12-03 | 2019-04-05 | 东华理工大学 | A kind of discharge structure |
| CN109577309A (en) * | 2018-12-03 | 2019-04-05 | 东华理工大学 | A kind of discharge structure |
| CN111501729A (en) * | 2020-04-23 | 2020-08-07 | 中核第四研究设计工程有限公司 | Vacuum preloading drainage consolidation method for silt titanium dioxide tailings |
| CN111501727A (en) * | 2020-03-31 | 2020-08-07 | 温州大学 | Device for vacuum preloading treatment of waste slurry of drainage plate and construction process thereof |
| CN111898178A (en) * | 2019-07-12 | 2020-11-06 | 江苏科能岩土工程有限公司 | Consolidation degree calculation method for layered foundation combined preloading |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203174584U (en) * | 2013-04-11 | 2013-09-04 | 上海大学 | Novel plastic drainage plate with sawtooth stiffening ribs |
| CN103388330A (en) * | 2013-07-31 | 2013-11-13 | 河海大学 | Pump drainage type vacuum preloading soft foundation strengthening method |
| CN104047281A (en) * | 2014-06-30 | 2014-09-17 | 洛阳广鑫建设集团有限公司 | Construction method for vacuum combined preloading consolidated foundation |
| CN105821829A (en) * | 2016-06-01 | 2016-08-03 | 上海建研地基基础工程有限公司 | Proposed-backfill foundation shallow soil layer rapid water draining method |
| CN206947886U (en) * | 2017-07-19 | 2018-01-30 | 国网福建南安市供电有限公司 | A kind of cable protective sleeve |
| CN208533508U (en) * | 2018-06-21 | 2019-02-22 | 中国华电科工集团有限公司 | A kind of plastic draining board |
-
2018
- 2018-06-21 CN CN201810646812.1A patent/CN108661044B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203174584U (en) * | 2013-04-11 | 2013-09-04 | 上海大学 | Novel plastic drainage plate with sawtooth stiffening ribs |
| CN103388330A (en) * | 2013-07-31 | 2013-11-13 | 河海大学 | Pump drainage type vacuum preloading soft foundation strengthening method |
| CN104047281A (en) * | 2014-06-30 | 2014-09-17 | 洛阳广鑫建设集团有限公司 | Construction method for vacuum combined preloading consolidated foundation |
| CN105821829A (en) * | 2016-06-01 | 2016-08-03 | 上海建研地基基础工程有限公司 | Proposed-backfill foundation shallow soil layer rapid water draining method |
| CN206947886U (en) * | 2017-07-19 | 2018-01-30 | 国网福建南安市供电有限公司 | A kind of cable protective sleeve |
| CN208533508U (en) * | 2018-06-21 | 2019-02-22 | 中国华电科工集团有限公司 | A kind of plastic draining board |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577310A (en) * | 2018-12-03 | 2019-04-05 | 东华理工大学 | A kind of discharge structure |
| CN109577309A (en) * | 2018-12-03 | 2019-04-05 | 东华理工大学 | A kind of discharge structure |
| CN111898178A (en) * | 2019-07-12 | 2020-11-06 | 江苏科能岩土工程有限公司 | Consolidation degree calculation method for layered foundation combined preloading |
| CN111501727A (en) * | 2020-03-31 | 2020-08-07 | 温州大学 | Device for vacuum preloading treatment of waste slurry of drainage plate and construction process thereof |
| CN111501729A (en) * | 2020-04-23 | 2020-08-07 | 中核第四研究设计工程有限公司 | Vacuum preloading drainage consolidation method for silt titanium dioxide tailings |
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| CN108661044B (en) | 2023-12-01 |
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