CN102116007A - Isolation waterproof filling method for treating surface layer of highway foundation - Google Patents
Isolation waterproof filling method for treating surface layer of highway foundation Download PDFInfo
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- CN102116007A CN102116007A CN 201110049908 CN201110049908A CN102116007A CN 102116007 A CN102116007 A CN 102116007A CN 201110049908 CN201110049908 CN 201110049908 CN 201110049908 A CN201110049908 A CN 201110049908A CN 102116007 A CN102116007 A CN 102116007A
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- waterproof
- rendzinas
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Abstract
The invention discloses an isolation waterproof filling method for treating the surface layer of a highway foundation. The isolation waterproof filling method comprises the following steps: firstly, a ditch is opened on a surface-dredged silt foundation with a high groundwater level or a sludge-dredged ditch pond to arrange a water drainage system, and a water pump is mounted to conduct water pumping and reducing; secondly, a waterproof cloth is laid on the silt foundation of which surface water is pumped or the ditch pond, and joints of the waterproof cloth are overlapped by adopting a width of at least 1m; and thirdly, a layer of evenly stirred lime soil with a thickness of 50cm to 60cm is paved on the waterproof cloth, is pressed by 3 times to 4 times by using a tracked machine, and stands for 4 days to 5 days to enable the lime soil to be hardened and formed. The isolation waterproof filling method has the advantages of simple process, short construction period, good pressing stabilization effect and high base quality, and the base compaction degree meets the design requirement.
Description
Technical field
The invention belongs to the construction technology that highway traffic infrastructure is built, the isolation waterproof that is specifically related to handle on a kind of highway foundation top layer is filled method.
Background technology
As everyone knows, along with rapid economy development, the highway traffic infrastructure of China has obtained significant progress, highway is more and more broader, according to the highway center line is the boundary, highway athwartship plane by about half and half 1/2 roadbed form, 1/2 roadbed is made up of 1/2 median strip, half range road surface and curb, the longitudinal surface on half range road surface is followed successively by ground top layer, backfill layer, roadbed filling layer and road surface structare layer from bottom to top; At present, speedway that has or Class I highway are to extend to form on the basis on original old road, just on the original ground of the one or both sides on old road, widen build, may there be the ditch pool in original ground, before the highway subgrade construction, must at first carry out the ground top layer handles, foreign material to original ground, the cultivated soil of planting of ground quilt and 15-20 centimetre of thickness is removed, be called for short clear table, perhaps place, the ditch pool is carried out draining, desilting is handled, and the special foundation after clear table or the desilting punished by designing requirement, be called for short and fill out preceding punishment, make the degree of compaction (being the substrate degree of compaction) after the preceding ground of roadbed filling is punished reach 85%-90%, could carry out placement in layers with qualified filler then, the subgrade construction of compacting successively.
When on the higher silt foundation of groundwater table when filling roadbed, after clear table of roadbed or the desilting of the ditch pool, general adopt rendzinas that roadbed is filled out before punishment and can't reach the degree of compaction of designing requirement substrate the time, being that proverb is said can't hold, stabilization by compaction is called for short " pressing steady ", usually adopt the rubble clay (or dirt) or the garrulous bricks and stones class building waste of 40-50 cm thicks to tamp processing, to reach the degree of compaction of designing requirement substrate; Effect is better but cost is higher for " pressing steady " that employing rubble clay (or dirt) is punished before roadbed is filled out, and its cost needs 70-100 yuan/every cubic metre approximately; Effect also is reasonable to " the pressing steady " of punishing before adopting garrulous bricks and stones class building waste that roadbed is filled out, but garrulous bricks and stones class building waste material source is limited, and its cost needs 70-80 yuan/every cubic metre approximately also than higher; Before adopting geotechnological woven bag to load plain soil or building waste roadbed is filled out punishment " pressing steady " effect also is more significant, but its material source is limited, construction technology is comparatively complicated, needs 24.10 approximately, 80.00-90.00 unit/every cubic metre; Adopt the rendzinas direct filling then to be difficult to the voltage stabilizing moulding; Adopt rubble clay (or dirt) or garrulous bricks and stones class building waste that the silt roadbed or the ditch pool are filled out preceding punishment, not only its construction costs is higher relatively, and the roadbed bottom that its forms is permeable, and roadbed is not had the water shutoff waterproof effect, and globality is poor; The formed roadbed bottom of punishment also is permeable before adopting geotechnological woven bag to load plain soil or building waste roadbed is filled out, and equally roadbed is not had the water shutoff waterproof effect, and globality is poor.
Summary of the invention
The objective of the invention is to: the isolation waterproof that provides a kind of highway foundation top layer to handle is filled method, adopt the canvas cloth punishment highway silt roadbed or the ditch pool to fill, solve on the higher silt foundation of groundwater table cost-effectively or on the ditch pool when filling roadbed, punishment was difficult to reach the engineering roadblock of the degree of compaction of designing requirement substrate before it was filled out, and was the job practices of a kind of simple and feasible, remarkable benefit.
Technical solution of the present invention is that this isolation waterproof method of filling may further comprise the steps: at first, at trench digging on the higher silt foundation of the groundwater table behind the clear table or on the ditch pool after the desilting drainage system is set, and the water pumper precipitation that draws water is installed; Secondly, taking out on the silt foundation of surface water or canvas cloth is established on the Gou Tang upper berth, at least 1 meter width overlap joint is adopted in the joint of canvas cloth; Again it, the rendzinas of 60 cm thicks of one deck uniform mixing that paves on canvas cloth, and press 3-4 times with crawler belt machinery leaves standstill the moulding of hardening of 4-5 angel's rendzinases.
Wherein, rendzinas is that the lime of content 6% and the plain soil of content 94% mix.
Wherein, canvas cloth is waterproof geotextiles or waterproof plastic cloth.
Wherein, crawler belt machinery is crawler dozer or shovel crawler.
Wherein, isolate the waterproof method of filling and comprise following concrete steps:
(1) handle on the ground top layer: carry out clear table of original ground or the desilting of the ditch pool;
(2) draining precipitation operation: trench digging is provided with drainage system, uses water pumper to take out surface water, reduces construction operation face water level;
(3) lay canvas cloth: lay waterproof geotextiles or waterproof plastic cloth, at least 1 meter width overlap joint is adopted in the joint of canvas cloth;
(4) rendzinas that paves: the rendzinas of 60 cm thicks of one deck uniform mixing that on canvas cloth, paves, leveling, and with crawler belt machinery pressure 3-4 times; Wherein, rendzinas is that the lime of content 6% and the plain soil of content 94% mix;
(5) leave standstill the health moulding: leave standstill the moulding of hardening of 4-5 angel's rendzinases;
(6) detect examination.
The present invention has the following advantages:
1, this method adopts highway engineering subgrade drainage and earthwork construction machinery commonly used to implement, and does not need special-purpose construction machinery, and construction technology is simple.
2, this method adopts after clear table back or the desilting and take out on the silt foundation of surface water or lay waterproof geotextiles or waterproof plastic cloth on the ditch pool, rendzinas first pressing and leave standstill and make its moulding of hardening paves on it, be easy to reach " pressing steady " requirement of substrate degree of compaction, and its good integrity of substrate rendzinas, the water resistance of the moulding of hardening are excellent, guarantee substrate quality.
3, punishment construction before the higher silt foundation of the groundwater table after adopting this method for clear table or the ditch pool after the desilting are filled out, can effectively finish 5 effective working days, and the duration is short.
4, adopt this method that silt roadbed or the ditch pool are filled out before the engineering cost of punishment be about 24-28 yuan/every square metre, far below adopting garrulous bricks and stones class building waste to need 35-40 yuan/every square metre approximately, adopting rubble clay (or dirt) to need 40-50 yuan/every square metre cost approximately, cost is low.
Description of drawings
Fig. 1 is a highway ditch pool backfill schematic cross-sectional view.
Among the figure: 1 highway center line, 2 road structures, 3 1/2 median strips, road surface, 4 half range road, 5 curbs, 6 old roads, 7 original grounds, 8 canvas clothes, 9 lime soil layers, 10 backfill layers, 11 roadbed filling layers.
The specific embodiment
Further specify technical solution of the present invention below in conjunction with the engineering construction example, the engineering construction example can not be interpreted as it is restriction to technical solution.
Be positioned at 327 domestic provincial highway Lian Cheng of Lianshui County, Huai, Jiangsu Province to stone lake section construction project, 35 kilometers of total lengths, according to the reconstruction of Class I highway standard, this highway passes through the alluvial plain of Huanghe in ancient Huang Hebei, ancient salt Henan, foundation soil below the roadbed is sand or silt, and groundwater table is higher.
Embodiment 1:327 provincial highway Lian Cheng 0K+000-3K+200 to the section of stone lake is the one-sided highway section of widening, old road, adopts following concrete steps that trackside former gutter in old road has been carried out the preceding punishment of filling out of roadbed:
(1) handle on the ground top layer: carry out clear table of original ground or the desilting of the ditch pool;
(2) draining precipitation operation: trench digging is provided with drainage system, uses water pumper to take out surface water, reduces construction operation face water level;
(3) lay canvas cloth: lay the waterproof geotextiles, 1.0 meters width overlap joints are adopted in the joint of waterproof geotextiles;
(4) rendzinas that paves: the rendzinas of 50 cm thicks of one deck uniform mixing that on canvas cloth, paves, leveling, and with crawler belt machinery pressure 3 times; Wherein, rendzinas is that the lime of content 6% and the plain soil of content 94% mix;
(5) leave standstill the health moulding: leave standstill the moulding of hardening of 4 angel's rendzinases;
(6) detect examination.
Embodiment 2:327 provincial highway Lian Cheng 5K+000-8K+000 to the section of stone lake is newly-built highway section, and this highway section foundation soil is a sand, and groundwater table is higher, adopts following steps that the foundation soil in the full width width of subgrade scope has been carried out the preceding punishment of filling out of roadbed:
(1) handle on the ground top layer: carry out clear table of original ground or the desilting of the ditch pool;
(2) draining precipitation operation: trench digging is provided with drainage system, uses water pumper to take out surface water, reduces construction operation face water level;
(3) lay canvas cloth: lay waterproof plastic cloth, 1.2 meters width overlap joints are adopted in the joint of canvas cloth;
(4) rendzinas that paves: the rendzinas of 55 cm thicks of one deck uniform mixing that on canvas cloth, paves, leveling, and with crawler belt machinery pressure 4 times; Wherein, rendzinas is that the lime of content 6% and the plain soil of content 94% mix;
(5) leave standstill the health moulding: leave standstill the moulding of hardening of 5 angel's rendzinases;
(6) detect examination.
Embodiment 3:327 provincial highway Lian Cheng 12K+800-13K+000 to the section of stone lake is newly-built highway section, and a bigger pool is arranged in this highway section, adopts following steps that it has been carried out the preceding punishment of filling out of roadbed:
(1) handle on the ground top layer: carry out clear table of original ground or the desilting of the ditch pool;
(2) draining precipitation operation: trench digging is provided with drainage system, uses water pumper to take out surface water, reduces construction operation face water level;
(3) lay canvas cloth: lay the waterproof geotextiles, 1.5 meters width overlap joints are adopted in the joint of canvas cloth;
(4) rendzinas that paves: the rendzinas of 60 cm thicks of one deck uniform mixing that on canvas cloth, paves, leveling, and with crawler belt machinery pressure 4 times; Wherein, rendzinas is that the lime of content 6% and the plain soil of content 94% mix;
(5) leave standstill the health moulding: leave standstill the moulding of hardening of 5 angel's rendzinases;
(6) detect examination.
The highway cross-section schematic diagram of above engineering construction example 1-3 as shown in Figure 1, adopt canvas cloth add rendzinas with adopt rendzinas, garrulous bricks and stones class building waste, rubble clay (or dirt), geotechnological woven bag carry out highway subgrade fill out before the construction costs of punishment and engineering property such as shown in the following table:
The construction costs of punishment and engineering property were relatively before highway subgrade was filled out
Claims (5)
1. the isolation waterproof of highway foundation top layer processing is filled method, it is characterized in that this isolation waterproof method of filling may further comprise the steps: at first, at trench digging on the higher silt foundation of the groundwater table behind the clear table or on the ditch pool after the desilting drainage system is set, and the water pumper precipitation that draws water is installed; Secondly, taking out on the silt foundation of surface water or canvas cloth is established on the Gou Tang upper berth, at least 1 meter width overlap joint is adopted in the joint of canvas cloth; Again it, the rendzinas of the 50-60 cm thick of one deck uniform mixing that paves on canvas cloth, and press 3-4 times with crawler belt machinery leaves standstill the moulding of hardening of 4-5 angel's rendzinases.
2. the isolation waterproof of handling according to the described highway foundation top layer of claim 1 is filled method, and it is characterized in that: wherein, rendzinas is that the lime of content 6% and the plain soil of content 94% mix.
3. the isolation waterproof of handling according to the described highway foundation top layer of claim 1 is filled method, and it is characterized in that: wherein, canvas cloth is waterproof geotextiles or waterproof plastic cloth.
4. the isolation waterproof of handling according to the described highway foundation top layer of claim 1 is filled method, and it is characterized in that: wherein, crawler belt machinery is crawler dozer or shovel crawler.
5. the isolation waterproof of handling according to the described highway foundation top layer of claim 1 is filled method, it is characterized in that isolating the waterproof method of filling and comprises following concrete steps:
(1) handle on the ground top layer: carry out clear table of original ground or the desilting of the ditch pool;
(2) draining precipitation operation: trench digging is provided with drainage system, uses water pumper to take out surface water, reduces construction operation face water level;
(3) lay canvas cloth: lay waterproof geotextiles or waterproof plastic cloth, at least 1 meter width overlap joint is adopted in the joint of canvas cloth;
(4) rendzinas that paves: the rendzinas of the 50-60 cm thick of one deck uniform mixing that on canvas cloth, paves, leveling, and with crawler belt machinery pressure 3-4 times; Wherein, rendzinas is that the lime of content 6% and the plain soil of content 94% mix;
(5) leave standstill the health moulding: leave standstill the moulding of hardening of 4-5 angel's rendzinases;
(6) detect examination.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100499088A CN102116007B (en) | 2011-03-02 | 2011-03-02 | Isolation waterproof filling method for treating surface layer of highway foundation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100499088A CN102116007B (en) | 2011-03-02 | 2011-03-02 | Isolation waterproof filling method for treating surface layer of highway foundation |
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| CN102116007A true CN102116007A (en) | 2011-07-06 |
| CN102116007B CN102116007B (en) | 2012-05-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515600A (en) * | 2011-12-08 | 2012-06-27 | 上海浦东路桥建设股份有限公司 | Groove backfill material using garbage incinerator slag as raw material, production method and application thereof |
| CN112982052A (en) * | 2021-02-25 | 2021-06-18 | 张家口翰得交通公路勘察设计有限责任公司 | Isolation waterproof filling structure for road foundation surface layer treatment and filling method thereof |
| CN113403906A (en) * | 2021-06-16 | 2021-09-17 | 中冶天工集团有限公司 | Method for controlling waterproof geotextile of road side green belt from being damaged by sinking deformation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1496161A1 (en) * | 2003-07-11 | 2005-01-12 | Ooms Avenhorn Holding B.V. | Method to stabilise the traffic route |
| CN101024934A (en) * | 2007-03-06 | 2007-08-29 | 天津宝泰建设有限公司 | Construction method for railway and road foundation |
| JP2009270329A (en) * | 2008-05-07 | 2009-11-19 | Nippon Road Co Ltd:The | Pea gravel pavement structure |
| CN201495468U (en) * | 2009-08-18 | 2010-06-02 | 冯守中 | Structure of highway subgrade on wet soft foundation |
-
2011
- 2011-03-02 CN CN2011100499088A patent/CN102116007B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1496161A1 (en) * | 2003-07-11 | 2005-01-12 | Ooms Avenhorn Holding B.V. | Method to stabilise the traffic route |
| CN101024934A (en) * | 2007-03-06 | 2007-08-29 | 天津宝泰建设有限公司 | Construction method for railway and road foundation |
| JP2009270329A (en) * | 2008-05-07 | 2009-11-19 | Nippon Road Co Ltd:The | Pea gravel pavement structure |
| CN201495468U (en) * | 2009-08-18 | 2010-06-02 | 冯守中 | Structure of highway subgrade on wet soft foundation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515600A (en) * | 2011-12-08 | 2012-06-27 | 上海浦东路桥建设股份有限公司 | Groove backfill material using garbage incinerator slag as raw material, production method and application thereof |
| CN112982052A (en) * | 2021-02-25 | 2021-06-18 | 张家口翰得交通公路勘察设计有限责任公司 | Isolation waterproof filling structure for road foundation surface layer treatment and filling method thereof |
| CN113403906A (en) * | 2021-06-16 | 2021-09-17 | 中冶天工集团有限公司 | Method for controlling waterproof geotextile of road side green belt from being damaged by sinking deformation |
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| CN102116007B (en) | 2012-05-30 |
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