CN105821828A - Drainage distribution method for reclaimed coastal region treatment - Google Patents
Drainage distribution method for reclaimed coastal region treatment Download PDFInfo
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- CN105821828A CN105821828A CN201610214143.1A CN201610214143A CN105821828A CN 105821828 A CN105821828 A CN 105821828A CN 201610214143 A CN201610214143 A CN 201610214143A CN 105821828 A CN105821828 A CN 105821828A
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- 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
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a drainage distribution method for reclaimed coastal region treatment. The method comprises the steps of: preparation-cleaning of a working surface-laying of a first sand cushion layer-horizontal laying of water storage and drainage plates-vertical laying of the drainage plates-reinforcement of the drainage plates-vertical laying of center filter pipes-reinforcement of the center filter pipes-backfilling of hydraulic reclamation sludge-laying of a top sand cushion layer-distribution of vacuum pumps and trail pumping operation. The method effectively reduces the setting number of total drainage plates in the reinforcement construction, shortens the construction period, reduces the cost, enables the drainage plates to be suffered from obvious support and reinforcement effects, is obvious in drainage effect of the drainage plates, accelerates the solidification of a soft foundation, improves the bearing capacity of the soft foundation, achieves a higher solidification degree of the soft foundation in a shorter time, and obviously reduces the foundation engineering sedimentation. The drainage plate construction method is low in labor intensity, reduces the construction cost, is convenient for construction, is high in construction efficiency, can reduce the engineering construction cost, can shorten the engineering construction period, and improves the engineering investment benefit.
Description
Technical field
The present invention relates to hydraulic engineering technical field, particularly relate to a kind of draining distribution method processed for Tidal Flat Inning Area.
Background technology
At present filler major part used by China's reclamation engineering be weak permeability, high saturability, low-intensity, the high rheological variation weakness barged-in fill such as muck soil or organic clay be main, in short time after hydraulic reclamation completes the land-based area soil body because of its moisture content high, intensity and bearing capacity are extremely low and can not carry out the relevant treatment of ground in time.Additionally, China's cruiseway lake the most all can produce substantial amounts of dredging silt, desilting mud is stacked dry in the sun for a long time and environment and land used resource is all existed certain pollution and waste.For the reclamation engineering of blowing-filling sludge soil, need to be to its shallow top layer super soft weak soil drainage sunk well in advance to forming the crust layer with some strength and thickness；For the dredging silt in stockyard, then need it is carried out drainage sunk well to reduce soil moisture content.To sum up, above engineering problem be core be all the most quickly to reduce the moisture content of shallow top layer mud.
At present, in reclamation engineering, the Treatment Methods of shallow top layer ultra-soft soil mainly has: the first, natural drying: the general dry in the sun of this method at least needs 1 year and easily affected by weather, and efficiency of construction is the lowest.The second, at floating platform or manually plug shallow-layer in advance on laying geotextile or grid and process deep vertical plastic draining board combined vacuum preloading method and carry out drainage sunk well, high-moisture percentage and hypotonicity because of mud, typically need to carry out vacuum preloading 1～3 months, simultaneously because blowing-filling sludge deflection is very big, common plastics draining board will produce wide-angle bending and then affect the transmission of vacuum and the smooth and easy of drainage channel.And the water discharge method of dredging silt mainly passes through to pre-set rigidity vertically and horizontally drainage channel in stockyard and mud carries out vacuum dehydration process, this method can greatly accelerate the drainage rates of mud, but pre-set displacement hull mud is inserted process to there are certain requirements, and the rigid drainage body that process terminates reclaims relatively complicated, therefore this method is not suitable for large area barged-in fill or the drainage system of desilting soil.
Summary of the invention
Present invention aim at solving above-mentioned technical problem present in prior art, a kind of draining distribution method processed for Tidal Flat Inning Area is provided, reduce total draining board in strengthening construction and quantity is set, shortening construction period, reduce cost, draining board is by obvious bracing reinforcement effect, make draining board drainage effect obvious, accelerate the consolidation of soft base and improve the bearing capacity of soft base, making soft base reach the higher degree of consolidation within a short period of time, hence it is evident that to reduce foundation engineering sedimentation.The method is installed simple, sound construction, and intensity is high, can undertake major part soil pressure, drainage efficiency is high, and drainability is strong, applied widely, use the construction method of this draining board, labor intensity is little, reduce construction cost, easy construction, efficiency of construction is high, both can reduce engineering construction cost, the engineering construction cycle can be shortened again, improve the returns of investment of engineering.
In order to solve above-mentioned technical problem, adopt the following technical scheme that
A kind of draining distribution method processed for Tidal Flat Inning Area, comprises the following steps:
(1) preparation.
(2) place cleaning: determine construction location according to construction plan, the soft base for construction location first carries out drainage works；Again the mud in boundary of works area, surface dust are excavated, and soft base is carried out smooth and cleaning process.
(3) ground floor sand bedding course is laid: according to thickness and the intensity of the soft base of construction survey, bottom foundation ditch, first lay one layer of rock mud filler, the thickness of rock mud filler is 30-50cm, lays one layer of geotextiles on the basis of rock mud filler, and then tile one layer of sandstone on the surface of geotextiles, the thickness 80-100cm of sandstone, and tamp 2-3 time with road roller, it is ensured that and soft basal plane smooth, allow its natural subsidence, the time controlling natural subsidence is 2-4 days, is consequently formed ground floor sand bedding course.
(4) level lays drainage plate: tile on ground floor sand bedding course one layer of drainage plate according to construction plan, formation drainage flaggy.
(5) draining board is vertically laid；It is 2 meters that the spacing of draining board controls, employing equilateral triangle is laid, the spacing often gone is 1.71m, first the equidistant cloth in side along drainage flaggy sets up an office position, laterally lay first row draining board, the method then laid according to equilateral triangle, lay second row draining board, in a manner mentioned above, the laying of draining board is completed.
(6) reinforcing of draining board: between adjacent two pieces of draining boards, first install one in the bottom of two pieces of draining boards and reinforce steel pipe, then according to the examination absolute altitude of design, another root is installed at the middle part of two pieces of draining boards and reinforces steel pipe, the every a length of 2m of steel pipe, and reinforce one wire gauze of vertical laying between steel pipe at two；In a manner mentioned above, the reinforcement between draining board is completed.
(7) center chimney filter is vertically laid: according to the laying mode of draining board, lay, at draining board, the equilateral triangle center upright formed and lay a center chimney filter；According to above-mentioned method, complete the laying of center chimney filter.
(8) reinforcing of center chimney filter: using center chimney filter as center, lays between three pieces of draining boards that center chimney filter and center chimney filter are closest and reinforces steel pipe and wire gauze, center chimney filter and draining board are linked together.
(9) landfill of blowing-filling sludge: the hydraulic reclamation absolute altitude set according to construction plan, blowing-filling sludge is filled in soft base, reach hydraulic reclamation absolute altitude, the most first with road roller, blowing-filling sludge is compacted, the number of times that tamps of road roller is 5-6 time, and allow its natural subsidence, make blowing-filling sludge reach to check and accept absolute altitude.
(10) top sand bedding course is laid: on blowing-filling sludge, first lay one layer of rock mud filler, the thickness of rock mud filler is 50-80cm, one layer of geotextiles is laid on the basis of rock mud filler, then tile one layer of sandstone on the surface of geotextiles, the thickness 100-120cm of sandstone, and tamps 2-3 time with road roller, ensure the smooth of last soft basal plane, its natural subsidence of relief, the time controlling natural subsidence is 3-6 days, is consequently formed top sand bedding course.
(11) operation is taken out in laying and the examination of vacuum pump.
Further, in step (1), the particular content of preparation: workmen grasps design idea, by the equipment needed for construction working and materials handling to job site, carry out preparation of construction；Preparation of construction includes that being familiar with correlation technique design data, construction drawing and draining lays technical standard modular working.
Further, in step (2), soft base carries out the concrete grammar of drainage works: excavate transverse drain ditch and longitudinal drainage ditch in the range of soft base in the spacing every 5 meters, in advance by water drainage, the width controlling transverse drain ditch and longitudinal drainage ditch is 0.5m, and the degree of depth is 0.5m.
Further, in step (4), rivet or nailing between every block of drainage plate, is used to be fixed.
Further, in step (3) and step (10), the particle diameter of rock mud filler is more than 1mm, and the size of sandstone is more than 60mm, and clay content controls within 10%.
Further, in step (7), the bottom of Mei Gen center chimney filter is fixed on drainage plate by tube sheet adapter and screw.
Further, in step (8), the concrete reinforcement means of center chimney filter: using center chimney filter as center, between three pieces of draining boards that center chimney filter and center chimney filter are closest, the bottom of Xian center chimney filter and first piece of draining board is installed first and is reinforced steel pipe, then install second in the bottom of center chimney filter and second piece of draining board and reinforce steel pipe, and the 3rd reinforcing steel pipe is installed in the bottom of center chimney filter and the 3rd piece of draining board；Then according to the examination absolute altitude of design, install the 4th at the middle part of center chimney filter and first piece of draining board and reinforce steel pipe, install the 5th at the middle part of center chimney filter and second piece of draining board and reinforce steel pipe, and six roots of sensation reinforcing steel pipe, a length of 1.1m of every steel pipe are installed at the middle part of center chimney filter and the 3rd piece of draining board；Finally reinforce first wire gauze between steel pipe first reinforcing steel pipe and the 4th, reinforce second wire gauze between steel pipe and the 5th reinforcing steel pipe at second, reinforce first wire gauze between steel pipe and six roots of sensation reinforcing steel pipe at the 3rd；In a manner mentioned above, the reinforcement between the chimney filter of all centers is completed.
Further, in step (9), the time controlling natural subsidence is 10-15 days.
Further, in step (11), the detailed process of operation is taken out in the laying of vacuum pump and examination: first expose the part of second layer sand bedding course with cutting machine excision draining board and center chimney filter, re-lay arm and the supervisor of evacuation, one end of arm connects draining board and center chimney filter, the other end of arm connects vacuum pump by supervisor, finally start vacuum pump, by arm and supervisor, drainage plate, draining board and the center chimney filter connected being carried out examination take out, complete to draw water and bleed operation.
Further, arm includes draining board arm and center chimney filter arm, and one end of draining board arm connects the top of draining board, and the other end of draining board arm connects vacuum pump, one end of center chimney filter arm connects the top of draining board, and the other end of center chimney filter arm connects vacuum pump.
Owing to using technique scheme, have the advantages that
The present invention is a kind of draining distribution method processed for Tidal Flat Inning Area, the method effectively reduces total draining board in strengthening construction and arranges quantity, shorten construction period, reduce cost, draining board is by obvious bracing reinforcement effect so that draining board drainage effect is obvious, accelerates the consolidation of soft base and improves the bearing capacity of soft base, soft base is made to reach the higher degree of consolidation within a short period of time, hence it is evident that to reduce foundation engineering sedimentation.The method is installed simple, sound construction, and intensity is high, can undertake major part soil pressure, drainage efficiency is high, and drainability is strong, applied widely, use the construction method of this draining board, labor intensity is little, reduce construction cost, easy construction, efficiency of construction is high, both can reduce engineering construction cost, the engineering construction cycle can be shortened again, improve the returns of investment of engineering.
Lay ground floor sand bedding course and top sand bedding course all uses rock mud filler and the laying mode of sandstone mixing, not only make blowing-filling sludge more free settling, and accelerate the consolidation of soft base and improve the bearing capacity of soft base, make soft base reach the higher degree of consolidation within a short period of time, effectively reduce the sedimentation time.
By arranging drainage plate, water in blowing-filling sludge is in vertical drainage plate all flows to drainage plate, local without remaining in other, and the water in drainage plate can be extracted out, for the work operations on earth's surface, Tidal Flat Inning Area by the vacuum pump connected finally by center chimney filter.
The board-plugging device that the vertical method laying draining board is different from prior art plugs draining board, but first carries out draining board laying, then carries out the landfill of blowing-filling sludge, the most not only decreases workload, and can reduce the loss caused when plugging draining board.Draining board layout design of the present invention be the length of side be the equilateral triangle of 2m, meet quincuncial arrangement, replace the square laying of prior art, reduce the impact of farthest drainage distance, total draining board is laid quantity and is significantly reduced, and reduces cost；Reinforce steel pipes and wire gauze finally by laying two between adjacent two pieces of draining boards, prevent the damage to draining board during blowing-filling sludge landfill.
A center chimney filter is laid by the central authorities at three pieces of equilateral triangle draining boards, many apertures it are laid with on the chimney filter of center, drainage screen it is provided with on aperture, draw water in pumping process at vacuum pump, not only can make that the water in blowing-filling sludge is gentle to be entered directly in the chimney filter of center by aperture, directly discharged by vacuum pump, thus accelerate the consolidation of soft base and improve the bearing capacity of soft base, and can be by connecting drainage plate bottom the chimney filter of center, the water stored in drainage plate is extracted into earth's surface and is used for other operation, improve the utilization rate of water resource.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the schematic cross-section of a kind of draining distribution method processed for Tidal Flat Inning Area in the present invention；
Fig. 2 is the schematic cross-section connecting wire gauze in the present invention between draining board and center chimney filter；
Fig. 3 is the construction process figure of a kind of draining distribution method processed for Tidal Flat Inning Area in the present invention.
In figure: the soft base of 1-；2-ground floor sand bedding course；3-drainage flaggy；4-blowing-filling sludge；5-top sand bedding course；6-draining board；7-center chimney filter；8-wire gauze.
Detailed description of the invention
As shown in Figure 1 to Figure 3, a kind of draining distribution method processed for Tidal Flat Inning Area, comprise the following steps:
(1) preparation: the particular content of preparation: workmen grasps design idea, by the equipment needed for construction working and materials handling to job site, carries out preparation of construction；Preparation of construction includes that being familiar with correlation technique design data, construction drawing and draining lays technical standard modular working.
(2) place cleaning: determine construction location according to construction plan, the soft base for construction location first carries out drainage works；Again the mud in boundary of works area, surface dust are excavated, and soft base 1 is carried out smooth and cleaning process.
(3) ground floor sand bedding course 2 is laid: according to thickness and the intensity of the soft base 1 of construction survey, bottom foundation ditch, first lay one layer of rock mud filler, the particle diameter of rock mud filler is more than 1mm, the thickness of rock mud filler is 30-50cm, one layer of geotextiles is laid on the basis of rock mud filler, then tile one layer of sandstone on the surface of geotextiles, the size of sandstone is more than 60mm, clay content controls within 10%, the thickness 80-100cm of sandstone, and tamp 2-3 time with road roller, ensure the smooth of 1, soft base, allow its natural subsidence, the time controlling natural subsidence is 2-4 days, it is consequently formed ground floor sand bedding course 2.
(4) level lays drainage plate: tile on ground floor sand bedding course 2 one layer of drainage plate according to construction plan, uses rivet or nailing to be fixed between every block of drainage plate, formation drainage flaggy 3.
(5) draining board 6 is vertically laid；It is 2 meters that the spacing of draining board 6 controls, employing equilateral triangle is laid, the spacing often gone is 1.71m, first the equidistant cloth in side along drainage flaggy 3 sets up an office position, laterally lay first row draining board 6, the method then laid according to equilateral triangle, lay second row draining board 6, in a manner mentioned above, the laying of draining board 6 is completed.
(6) reinforcing of draining board 6: between adjacent two pieces of draining boards 6, first install one in the bottom of two pieces of draining boards 6 and reinforce steel pipe, then according to the examination absolute altitude of design, another root is installed at the middle part of two pieces of draining boards 6 and reinforces steel pipe, the every a length of 2m of steel pipe, and reinforce one wire gauze of vertical laying between steel pipe at two；In a manner mentioned above, the reinforcement between draining board 6 is completed.
(7) center chimney filter 7 is vertically laid: according to the laying mode of draining board 6, laying, at draining board 6, the equilateral triangle center upright formed and lay a center chimney filter 7, the bottom of Mei Gen center chimney filter 7 is fixed on drainage plate 6 by tube sheet adapter and screw；According to above-mentioned method, complete the laying of center chimney filter 7.
(8) reinforcing of center chimney filter 7: using center chimney filter 7 as center, lays between three pieces of draining boards 6 that center chimney filter 7 and center chimney filter 7 are closest and reinforces steel pipe and wire gauze 8, center chimney filter 7 and draining board 6 are linked together.
(9) landfill of blowing-filling sludge 4: the hydraulic reclamation absolute altitude set according to construction plan, blowing-filling sludge 4 is filled in soft base 1, reach hydraulic reclamation absolute altitude, the most first with road roller, blowing-filling sludge 4 is compacted, the number of times that tamps of road roller is 5-6 time, and allowing its natural subsidence, the time controlling natural subsidence is 10-15 days, makes blowing-filling sludge 4 reach to check and accept absolute altitude.
(10) top sand bedding course 5 is laid: on blowing-filling sludge 4, first lay one layer of rock mud filler, the particle diameter of rock mud filler is more than 1mm, the thickness of rock mud filler is 50-80cm, one layer of geotextiles is laid on the basis of rock mud filler, then tile one layer of sandstone on the surface of geotextiles, the size of sandstone is more than 60mm, clay content controls within 10%, the thickness 100-120cm of sandstone, and tamp 2-3 time with road roller, it is ensured that 1, last soft base smooth, its natural subsidence of relief, the time controlling natural subsidence is 3-6 days, is consequently formed top sand bedding course 5.
(11) operation is taken out in laying and the examination of vacuum pump.
In step (2), soft base 1 carries out the concrete grammar of drainage works: excavate transverse drain ditch and longitudinal drainage ditch in the range of soft base 1 in the spacing every 5 meters, in advance by water drainage, the width controlling transverse drain ditch and longitudinal drainage ditch is 0.5m, and the degree of depth is 0.5m.
In step (8), the concrete reinforcement means of center chimney filter 7: using center chimney filter 7 as center, between three pieces of draining boards 6 that center chimney filter 7 and center chimney filter 7 are closest, the bottom of Xian center chimney filter 7 and first piece of draining board 6 is installed first and is reinforced steel pipe, then install second in the bottom of center chimney filter 7 and second piece of draining board 6 and reinforce steel pipe, and the 3rd reinforcing steel pipe is installed in the bottom of center chimney filter 7 and the 3rd piece of draining board 6；Then according to the examination absolute altitude of design, install the 4th at the middle part of center chimney filter 7 and first piece of draining board 6 and reinforce steel pipe, install the 5th at the middle part of center chimney filter 7 and second piece of draining board 6 and reinforce steel pipe, and six roots of sensation reinforcing steel pipe, a length of 1.1m of every steel pipe are installed at the middle part of center chimney filter 7 and the 3rd piece of draining board 6；Finally reinforce first wire gauze 8 between steel pipe first reinforcing steel pipe and the 4th, reinforce second wire gauze 8 between steel pipe and the 5th reinforcing steel pipe at second, reinforce first wire gauze 8 between steel pipe and six roots of sensation reinforcing steel pipe at the 3rd；In a manner mentioned above, the reinforcement between all centers chimney filter 7 is completed.
In step (11), the detailed process of operation is taken out in the laying of vacuum pump and examination: first expose the part of second layer sand bedding course with cutting machine excision draining board 6 and center chimney filter 7, re-lay arm and the supervisor of evacuation, one end of arm connects draining board 6 and center chimney filter 7, the other end of arm connects vacuum pump by supervisor, finally start vacuum pump, by arm and supervisor, drainage plate 6, draining board 6 and the center chimney filter 7 connected being carried out examination take out, complete to draw water and bleed operation.Arm includes draining board 6 arm and center chimney filter 7 arm, one end of draining board 6 arm connects the top of draining board 6, the other end of draining board 6 arm connects vacuum pump, and one end of center chimney filter 7 arm connects the top of draining board 6, and the other end of center chimney filter 7 arm connects vacuum pump.
The method effectively reduces total draining board 6 in strengthening construction and arranges quantity, shorten construction period, reduce cost, draining board 6 is by obvious bracing reinforcement effect, make draining board 6 drainage effect obvious, accelerate the consolidation of soft base 1 and improve the bearing capacity of soft base 1, making soft base 1 reach the higher degree of consolidation within a short period of time, hence it is evident that to reduce foundation engineering sedimentation.The method is installed simple, sound construction, and intensity is high, can undertake major part soil pressure, drainage efficiency is high, and drainability is strong, applied widely, use the construction method of this draining board 6, labor intensity is little, reduce construction cost, easy construction, efficiency of construction is high, both can reduce engineering construction cost, the engineering construction cycle can be shortened again, improve the returns of investment of engineering.
Lay ground floor sand bedding course 2 and top sand bedding course 5 all uses rock mud filler and the laying mode of sandstone mixing, not only make blowing-filling sludge 4 more free settling, and accelerate the consolidation of soft base 1 and improve the bearing capacity of soft base 1, make soft base 1 reach the higher degree of consolidation within a short period of time, effectively reduce the sedimentation time.
By arranging drainage plate 6, water in blowing-filling sludge 4 is in vertical drainage plate 6 all flows to drainage plate 6, local without remaining in other, and the water in drainage plate 6 can be extracted out, for the work operations on earth's surface, Tidal Flat Inning Area by the vacuum pump connected finally by center chimney filter 7.
The board-plugging device that the vertical method laying draining board 6 is different from prior art plugs draining board 6, but first carries out draining board 6 and lay, then carries out the landfill of blowing-filling sludge 4, the most not only decreases workload, and can reduce the loss caused when plugging draining board 6.Draining board 6 layout design of the present invention be the length of side be the equilateral triangle of 2m, meet quincuncial arrangement, replace the square laying of prior art, reduce the impact of farthest drainage distance, total draining board 6 is laid quantity and is significantly reduced, and reduces cost；Reinforce steel pipes and wire gauze 8 finally by laying two between adjacent two pieces of draining boards 6, prevent the damage to draining board 6 during blowing-filling sludge 4 landfill.
A center chimney filter 7 is laid by the central authorities at three pieces of equilateral triangle draining boards 6, many apertures it are laid with on center chimney filter 7, drainage screen it is provided with on aperture, draw water in pumping process at vacuum pump, not only can make that the water in blowing-filling sludge 4 is gentle to be entered directly in center chimney filter 7 by aperture, directly discharged by vacuum pump, thus accelerate the consolidation of soft base 1 and improve the bearing capacity of soft base 1, and can be by connecting drainage plate 6 bottom center chimney filter 7, the water stored in drainage plate 6 is extracted into earth's surface and is used for other operation, improve the utilization rate of water resource.
These are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.Any based on the present invention, for solving essentially identical technical problem, it is achieved essentially identical technique effect, done ground simple change, equivalent or modification etc., all it is covered by among protection scope of the present invention.
Claims (10)
1. the draining distribution method processed for Tidal Flat Inning Area, it is characterised in that comprise the following steps:
(1) preparation；
(2) place cleaning: determine construction location according to construction plan, the soft base for construction location first carries out drainage works；Again the mud in boundary of works area, surface dust are excavated, and soft base is carried out smooth and cleaning process；
(3) ground floor sand bedding course is laid: according to thickness and the intensity of the soft base of construction survey, bottom foundation ditch, first lay one layer of rock mud filler, the thickness of rock mud filler is 30-50cm, lays one layer of geotextiles on the basis of rock mud filler, and then tile one layer of sandstone on the surface of geotextiles, the thickness 80-100cm of sandstone, and tamp 2-3 time with road roller, it is ensured that and soft basal plane smooth, allow its natural subsidence, the time controlling natural subsidence is 2-4 days, is consequently formed ground floor sand bedding course；
(4) level lays drainage plate: tile on ground floor sand bedding course one layer of drainage plate according to construction plan, formation drainage flaggy；
(5) draining board is vertically laid；It is 2 meters that the spacing of draining board controls, employing equilateral triangle is laid, the spacing often gone is 1.71m, first the equidistant cloth in side along drainage flaggy sets up an office position, laterally lay first row draining board, the method then laid according to equilateral triangle, lay second row draining board, in a manner mentioned above, the laying of draining board is completed；
(6) reinforcing of draining board: between adjacent two pieces of draining boards, first install one in the bottom of two pieces of draining boards and reinforce steel pipe, then according to the examination absolute altitude of design, another root is installed at the middle part of two pieces of draining boards and reinforces steel pipe, the every a length of 2m of steel pipe, and reinforce one wire gauze of vertical laying between steel pipe at two；In a manner mentioned above, the reinforcement between draining board is completed；
(7) center chimney filter is vertically laid: according to the laying mode of draining board, lay, at draining board, the equilateral triangle center upright formed and lay a center chimney filter；According to above-mentioned method, complete the laying of center chimney filter；
(8) reinforcing of center chimney filter: using center chimney filter as center, lays between three pieces of draining boards that center chimney filter and center chimney filter are closest and reinforces steel pipe and wire gauze, center chimney filter and draining board are linked together；
(9) landfill of blowing-filling sludge: the hydraulic reclamation absolute altitude set according to construction plan, blowing-filling sludge is filled in soft base, reach hydraulic reclamation absolute altitude, the most first with road roller, blowing-filling sludge is compacted, the number of times that tamps of road roller is 5-6 time, and allow its natural subsidence, make blowing-filling sludge reach to check and accept absolute altitude；
(10) top sand bedding course is laid: on blowing-filling sludge, first lay one layer of rock mud filler, the thickness of rock mud filler is 50-80cm, one layer of geotextiles is laid on the basis of rock mud filler, then tile one layer of sandstone on the surface of geotextiles, the thickness 100-120cm of sandstone, and tamps 2-3 time with road roller, ensure the smooth of last soft basal plane, its natural subsidence of relief, the time controlling natural subsidence is 3-6 days, is consequently formed top sand bedding course；
(11) operation is taken out in laying and the examination of vacuum pump.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterized in that: in described step (1), the particular content of described preparation: workmen grasps design idea, by the equipment needed for construction working and materials handling to job site, carry out preparation of construction；Preparation of construction includes that being familiar with correlation technique design data, construction drawing and draining lays technical standard modular working.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterized in that: in described step (2), soft base carries out the concrete grammar of drainage works: excavate transverse drain ditch and longitudinal drainage ditch in the range of soft base in the spacing every 5 meters, in advance by water drainage, the width controlling transverse drain ditch and longitudinal drainage ditch is 0.5m, and the degree of depth is 0.5m.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterised in that: in described step (4), between every block of drainage plate, use rivet or nailing to be fixed.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterized in that: in described step (3) and described step (10), the particle diameter of rock mud filler is more than 1mm, the size of sandstone is more than 60mm, and clay content controls within 10%.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterised in that: in described step (7), the bottom of Mei Gen center chimney filter is fixed on drainage plate by tube sheet adapter and screw.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterized in that: in described step (8), the concrete reinforcement means of center chimney filter: using center chimney filter as center, between three pieces of draining boards that center chimney filter and center chimney filter are closest, the bottom of Xian center chimney filter and first piece of draining board is installed first and is reinforced steel pipe, then install second in the bottom of center chimney filter and second piece of draining board and reinforce steel pipe, and the 3rd reinforcing steel pipe is installed in the bottom of center chimney filter and the 3rd piece of draining board；Then according to the examination absolute altitude of design, install the 4th at the middle part of center chimney filter and first piece of draining board and reinforce steel pipe, install the 5th at the middle part of center chimney filter and second piece of draining board and reinforce steel pipe, and six roots of sensation reinforcing steel pipe, a length of 1.1m of every steel pipe are installed at the middle part of center chimney filter and the 3rd piece of draining board；Finally reinforce first wire gauze between steel pipe first reinforcing steel pipe and the 4th, reinforce second wire gauze between steel pipe and the 5th reinforcing steel pipe at second, reinforce first wire gauze between steel pipe and six roots of sensation reinforcing steel pipe at the 3rd；In a manner mentioned above, the reinforcement between the chimney filter of all centers is completed.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterised in that: in described step (9), the time controlling described natural subsidence is 10-15 days.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterized in that: in described step (11), the detailed process of operation is taken out in the laying of vacuum pump and examination: first expose the part of second layer sand bedding course with cutting machine excision draining board and center chimney filter, re-lay arm and the supervisor of evacuation, one end of arm connects draining board and center chimney filter, the other end of arm connects vacuum pump by supervisor, finally start vacuum pump, by arm and supervisor, drainage plate to connection, draining board and center chimney filter carry out examination and take out, complete to draw water and bleed operation.
A kind of draining distribution method processed for Tidal Flat Inning Area, it is characterized in that: described arm includes draining board arm and center chimney filter arm, one end of draining board arm connects the top of draining board, the other end of draining board arm connects vacuum pump, one end of center chimney filter arm connects the top of draining board, and the other end of center chimney filter arm connects vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107820767A (en) * | 2017-11-16 | 2018-03-23 | 江苏省农业科学院 | A kind of method for enclosing and cultivating tidal land breeding combination quick improvement soil |
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| CN1858361A (en) * | 2006-06-09 | 2006-11-08 | 华南理工大学 | Quick reinforcing method and its reinforcing device super soft weak soil |
| CN101736734A (en) * | 2009-12-31 | 2010-06-16 | 郭艳景 | Quick strengthening method of extremely soft sludge |
| JP2014196614A (en) * | 2013-03-29 | 2014-10-16 | 清水建設株式会社 | Ground improvement method |
| CN105239554A (en) * | 2015-08-27 | 2016-01-13 | 上海十三冶建设有限公司 | Vacuum and preloading drainage structure with low-permeability sand layers and construction method |
| JP2016014256A (en) * | 2014-07-02 | 2016-01-28 | 五洋建設株式会社 | Vacuum consolidation method combined with banking |
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| CN1858361A (en) * | 2006-06-09 | 2006-11-08 | 华南理工大学 | Quick reinforcing method and its reinforcing device super soft weak soil |
| CN101736734A (en) * | 2009-12-31 | 2010-06-16 | 郭艳景 | Quick strengthening method of extremely soft sludge |
| JP2014196614A (en) * | 2013-03-29 | 2014-10-16 | 清水建設株式会社 | Ground improvement method |
| JP2016014256A (en) * | 2014-07-02 | 2016-01-28 | 五洋建設株式会社 | Vacuum consolidation method combined with banking |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107820767A (en) * | 2017-11-16 | 2018-03-23 | 江苏省农业科学院 | A kind of method for enclosing and cultivating tidal land breeding combination quick improvement soil |
| CN107820767B (en) * | 2017-11-16 | 2021-11-23 | 江苏省农业科学院 | Method for quickly improving soil by combining reclamation shoal planting and breeding |
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