CN106087946A - A kind of carbonate rock boulder strong rammer is combined to change to fill changes foundation reinforcement method - Google Patents
A kind of carbonate rock boulder strong rammer is combined to change to fill changes foundation reinforcement method Download PDFInfo
- Publication number
- CN106087946A CN106087946A CN201610410731.2A CN201610410731A CN106087946A CN 106087946 A CN106087946 A CN 106087946A CN 201610410731 A CN201610410731 A CN 201610410731A CN 106087946 A CN106087946 A CN 106087946A
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- Prior art keywords
- change
- rammer
- foundation
- combined
- reinforcement method
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- 238000000034 method Methods 0.000 title claims abstract description 22
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 21
- 239000011435 rock Substances 0.000 title claims abstract description 18
- 230000002787 reinforcement Effects 0.000 title claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
-
- 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
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
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 invention discloses a kind of carbonate rock boulder strong rammer compound change to fill change foundation reinforcement method, in soft foundation (2), ram pier body (3), pier body (3) and soft foundation (2) top lay bed course (1).The present invention uses high energy dynamic compaction that soft foundation (2) is carried out dynamic replacement, and top layer is reinforced by rear employing full rammer construction.Filler bed course (1) after process and block pier body (3) form compound foundation are as top structure building essential bearing stratum, and the present invention greatly reduces construction costs, and bearing capacity meets design and code requirement.
Description
Technical field
The invention belongs to civil engineering foundation treatment technology field, particularly relate to a kind of carbonate rock boulder ground and change and fill out
Replacing and reinforcing method.
Background technology
Along with southwest economic development, engineering project increasing, building place in Process of Engineering Construction can not
The diluvial formation problem as ground of being rushed Karst Mountain Areas can be run into avoiding.Such ground exist subterrane bury relatively deep,
The geotechnical engineering problems such as rock stratum weakness, low bearing capacity, compression are big.This soft foundation is generally used roll compacting,
Change and fill out bed course, discharging consolidation, the methods such as close compacted, dynamic replacement, synthetic material reinforcement of shaking process.
Wherein heavy tamping replacement method is the improved method of heavy-tamping method.During dynamic replacement, compacted by power, be replaced as
The mechanism such as pier, discharging consolidation complements each other, and forms complicated integral reinforcing structure.There is construction technology simple, economical convenient, and
There is dynamic replacement and the feature of discharging consolidation strengthening soft foundation simultaneously.At present, heavy tamping replacement method is mainly used in coastal area
The soft layer that water content is high, void ratio is big, compressibility is big, intensity level is low.Soft foundation for carbonate rock area
Then lack utilization.
Summary of the invention
The technical problem to be solved in the present invention is: underlie for by rushing the soft foundation that diluvial formation is formed for building place,
A kind of carbonate rock boulder strong rammer of offer is combined to change to fill changes foundation reinforcement method, and the ground after reinforcing ensure that ground
Base top is built, the demand of structures bearing capacity, it is also possible to reduces and avoids all using because of soft ground treatment pile foundation to carry
The construction investment come.
Technical scheme is as follows:
A kind of carbonate rock boulder strong rammer is compound changes to fill and changes foundation reinforcement method, is formed by rushing diluvial formation including underliing
Soft foundation, ram pier body in soft foundation, above pier body and soft foundation lay bed course.
First, first the soft foundation building place is carried out single-point dynamic replacement construction, filler is rammed the weakness that underlies
Ground forms pier body, and the layout of dynamic replacement point is laid with position according to upper building base form；Dynamic replacement is complete
To building place laying bed course after one-tenth, then carry out full rammer construction.
Strong rammer hammer ram is cylindrical, and single-point dynamic replacement uses 8000kN m energy level point to ram tamping energy, and single-point displacement is rammed
Number of times obtains according to scene test.
During dynamic replacement, tamping pit filler uses natural grading carbonate sillar stone or rubble, the particle diameter granule more than 300mm
Content is less than the 30% of full weight, and maximum particle diameter is not more than 500mm.
During single-point dynamic replacement, the last two average ramming volumes hit are not more than 20cm；Accumulative ramming volume is design pier length
1.5～2 times.
The full construction employing 3000kN m tamping energy that rams, hammer ram diameter 2.5m, rammer print overlaps 1/4 mutually.
Described full rammer is to ram for one time, rams number and meets the last two average ramming volumes hit and be not more than 50mm.
The essence of the present invention is to carry out single-point initially with 8000kN m tamping energy and put for building the soft foundation in place
Change rammer construction, filler is rammed the soft foundation that underlies.The layout of dynamic replacement point should be according to upper building base form and position
Put and lay.Dynamic replacement carries out the full of 3000kN m tamping energy to construction place after completing and rams construction, i.e. shape of having constructed
Become strong rammer composite foundation of the present invention.Single-point displacement rammer is rammed several test according to scene and is determined.Single-point replaces the rammer rammed
Pier length is no less than the soft foundation thickness that underlies.Filler uses natural grading carbonate sillar stone or rubble, particle diameter be 300～
500mm, accounts for about the 30% of full weight, and clay content is not more than 5%.Full rammer is to ram for one time, rams and overlaps 1/4 between print.
Beneficial effects of the present invention is embodied in: strong rammer composite construction is filled out soft foundation with changing by using dynamic replacement
Reinforce, it is possible to increase the intensity of ground and uniformity, reduce engineering construction investment, and meet design and code requirement.
Accompanying drawing explanation
Fig. 1 present invention implements cross-sectional view；
Fig. 2 tamping pit point layout figure.
Detailed description of the invention
A kind of carbonate rock boulder strong rammer is combined to change to fill changes foundation reinforcement method (see Fig. 1), is embodied as step such as
Under:
Step 1: cleaning smooth construction site, pre-a layer thickness of laying is 500mm, and particle diameter is not more than the compacting of 100mm
Bed course 1, bed course 1 uses the carbonate sillar masonry of clay content no more than 5% natural grading to be filler.
Step 2: mark tamping point position 6, and measure elevation around place and tamping point.
Step 3: use 8000kN m tamping energy, carry out dynamic replacement.Select a diameter of 2.5m of hammer ram, the circle of weight 45t
Hammer ram.Open tripping gear after first hammer ram is lifted to 18m height, ram and by hitting record crater depth, and ram in displacement
Hit the peripheral select location of each tamping point tamping pit top edge line 5 and arrange 8 observation stations 4.During single-point is rammed, strong rammer is often hit
Tamping pit surrounding uplift capacity measures, record.Carrying out filler in ramming backward tamping pit, filler uses the carbonate rock of natural grading
Particle diameter 300～500mm account for full weight about 30% block stone, fill until the 1/3 of crater depth～1/2 height, record is filled out
Material quantity.So repeatedly until meeting the last two average ramming volumes hit to be not more than 20cm, accumulative rammer sinks for designing the 1.5 of pier length
～2 times, and penetrate soft foundation 2 and i.e. complete ramming of a pier body 3.
Step 4: after completing all dynamic replacement pier bodies 3, interior laying filler bed course 1 so that pad
Layer 1 thickness reaches 1.8～2.5m.
Step 5: use 3000kN m tamping energy to carry out strong rammer, the mode of ramming is to ram for one time, rams and overlaps 1/4 between print.Ram
Number meets the last two average ramming volumes hit and is not more than 50mm.I.e. complete carbonate rock boulder strong rammer compound change to fill change ground
Reinforcing.
Claims (7)
1. carbonate rock boulder strong rammer is combined to change to fill and changes a foundation reinforcement method, including underliing by rushing what diluvial formation was formed
Soft foundation (2), it is characterised in that: ram pier body (3), pier body (3) and soft foundation (2) top in soft foundation (2) and lay
Bed course (1).
A kind of carbonate rock boulder strong rammer the most according to claim 1 is combined to change to fill changes foundation reinforcement method, and it is special
Levy and be: first the soft foundation (2) building place is carried out single-point dynamic replacement construction, filler is rammed the soft foundation that underlies
(2) forming pier body (3), the layout of dynamic replacement point is laid with position according to upper building base form；Dynamic replacement
To building place laying bed course (1) after completing, then carry out full rammer construction.
A kind of carbonate rock boulder strong rammer the most according to claim 2 is combined to change to fill changes foundation reinforcement method, and it is special
Levying and be: strong rammer hammer ram is cylinder, single-point dynamic replacement uses 8000kN m energy level point to ram tamping energy, and single-point displacement is rammed
Number of times obtains according to scene test.
A kind of carbonate rock boulder strong rammer the most according to claim 2 is combined to change to fill changes foundation reinforcement method, and it is special
Levying and be: during dynamic replacement, tamping pit filler uses natural grading carbonate sillar stone or rubble, the particle diameter granule more than 300mm contains
Amount is less than the 30% of full weight, and maximum particle diameter is not more than 500mm.
A kind of carbonate rock boulder strong rammer the most according to claim 2 is combined to change to fill changes foundation reinforcement method, and it is special
Levy and be: during single-point dynamic replacement, the last two average ramming volumes hit are not more than 20cm；Accumulative ramming volume is the 1.5 of design pier length
～2 times.
A kind of carbonate rock boulder strong rammer the most according to claim 2 is combined to change to fill changes foundation reinforcement method, and it is special
Levy and be: the full construction employing 3000kN m tamping energy that rams, hammer ram diameter 2.5m, rammer print overlaps 1/4 mutually.
A kind of carbonate rock boulder strong rammer the most according to claim 6 is combined to change to fill changes foundation reinforcement method, and it is special
Levy and be: described full rammer is to ram for one time, ram number and meet the last two average ramming volumes hit and be not more than 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410731.2A CN106087946A (en) | 2016-06-13 | 2016-06-13 | A kind of carbonate rock boulder strong rammer is combined to change to fill changes foundation reinforcement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410731.2A CN106087946A (en) | 2016-06-13 | 2016-06-13 | A kind of carbonate rock boulder strong rammer is combined to change to fill changes foundation reinforcement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106087946A true CN106087946A (en) | 2016-11-09 |
Family
ID=57845223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610410731.2A Pending CN106087946A (en) | 2016-06-13 | 2016-06-13 | A kind of carbonate rock boulder strong rammer is combined to change to fill changes foundation reinforcement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106087946A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469043A (en) * | 2018-11-21 | 2019-03-15 | 贵州正业工程技术投资有限公司 | A kind of multilayer block stone fill foundation dynamic replacement ruggedized construction and reinforcement means |
| CN114411467A (en) * | 2022-03-31 | 2022-04-29 | 山西机械化建设集团有限公司 | Construction method of high-liquid limit soil filler high-fill skeleton stress and drainage system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441122A (en) * | 2003-04-07 | 2003-09-10 | 南昌县第二建筑工程公司特种软基分公司 | Extradeep extruding and ramming method |
| KR100506981B1 (en) * | 2005-02-16 | 2005-08-05 | (주)아이엔 | Method of reinforcing a hollow part which is formed in an earth and sand ground at a rear side of retaining wall |
| CN1743561A (en) * | 2005-09-30 | 2006-03-08 | 江西基业科技有限公司 | Column-hammer forced tamping substitution method |
| CN1891913A (en) * | 2005-07-07 | 2007-01-10 | 宁夏建筑设计研究院有限公司 | Counterweight punching-expanding replacement method |
| CN101575848A (en) * | 2009-06-05 | 2009-11-11 | 刘献刚 | Method for treating foundation by combined hammers |
| CN101967819A (en) * | 2009-07-27 | 2011-02-09 | 上海艾能电力工程有限公司 | Forced ramming displacement synthetic method for construction of soft soil foundations of transformer substations |
| JP2013100638A (en) * | 2011-11-07 | 2013-05-23 | Shiima Consultant:Kk | Soil improvement method |
| CN104264653A (en) * | 2014-07-21 | 2015-01-07 | 山西机械化建设集团公司 | Superhigh energy level dynamic compaction and replacement compatible construction process |
| CN104727295A (en) * | 2015-03-26 | 2015-06-24 | 中化岩土工程股份有限公司 | Pre-hole-forming padding substitution hammer flattener dynamic compaction method |
| CN105350512A (en) * | 2015-09-30 | 2016-02-24 | 贵州正业工程技术投资有限公司 | Construction method for dynamic compaction and impact rolling of carbonate rock block stone padding |
-
2016
- 2016-06-13 CN CN201610410731.2A patent/CN106087946A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441122A (en) * | 2003-04-07 | 2003-09-10 | 南昌县第二建筑工程公司特种软基分公司 | Extradeep extruding and ramming method |
| KR100506981B1 (en) * | 2005-02-16 | 2005-08-05 | (주)아이엔 | Method of reinforcing a hollow part which is formed in an earth and sand ground at a rear side of retaining wall |
| CN1891913A (en) * | 2005-07-07 | 2007-01-10 | 宁夏建筑设计研究院有限公司 | Counterweight punching-expanding replacement method |
| CN1743561A (en) * | 2005-09-30 | 2006-03-08 | 江西基业科技有限公司 | Column-hammer forced tamping substitution method |
| CN101575848A (en) * | 2009-06-05 | 2009-11-11 | 刘献刚 | Method for treating foundation by combined hammers |
| CN101967819A (en) * | 2009-07-27 | 2011-02-09 | 上海艾能电力工程有限公司 | Forced ramming displacement synthetic method for construction of soft soil foundations of transformer substations |
| JP2013100638A (en) * | 2011-11-07 | 2013-05-23 | Shiima Consultant:Kk | Soil improvement method |
| CN104264653A (en) * | 2014-07-21 | 2015-01-07 | 山西机械化建设集团公司 | Superhigh energy level dynamic compaction and replacement compatible construction process |
| CN104727295A (en) * | 2015-03-26 | 2015-06-24 | 中化岩土工程股份有限公司 | Pre-hole-forming padding substitution hammer flattener dynamic compaction method |
| CN105350512A (en) * | 2015-09-30 | 2016-02-24 | 贵州正业工程技术投资有限公司 | Construction method for dynamic compaction and impact rolling of carbonate rock block stone padding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469043A (en) * | 2018-11-21 | 2019-03-15 | 贵州正业工程技术投资有限公司 | A kind of multilayer block stone fill foundation dynamic replacement ruggedized construction and reinforcement means |
| CN109469043B (en) * | 2018-11-21 | 2024-04-30 | 贵州正业工程技术投资有限公司 | Dynamic compaction replacement reinforcement structure and reinforcement method for multi-layer block stone filled foundation |
| CN114411467A (en) * | 2022-03-31 | 2022-04-29 | 山西机械化建设集团有限公司 | Construction method of high-liquid limit soil filler high-fill skeleton stress and drainage system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |