CN1189628C - Extradeep extruding and ramming method - Google Patents
Extradeep extruding and ramming method Download PDFInfo
- Publication number
- CN1189628C CN1189628C CN 03116272 CN03116272A CN1189628C CN 1189628 C CN1189628 C CN 1189628C CN 03116272 CN03116272 CN 03116272 CN 03116272 A CN03116272 A CN 03116272A CN 1189628 C CN1189628 C CN 1189628C
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- tamping
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Abstract
The present invention discloses a super deep campaction heavy tamping method. Firstly, a field is flattened, then the first tamping point construction and the second tamping point construction or the third tamping point construction is carried out, and finally, tamping is popularized in the whole field. Under the same condition that single-blow tamping energy and the lifting capacity of a tamping machine are not increased, depth is effectively strengthened and is increased by more than one time (reaches 10M to 20M) with the heavy tamping method. The intensity and the stability of the strengthened foundation are greatly improved, precipitation amount is obviously reduced, and bearing capacity is obviously enhanced. Simultaneously, double effects of super deep campaction and deep layer replacement can be reached. The present invention solves the technological problem that the heavy tamping effect of common tamping machines with medium and small tonnages is not good in the aspect of backfilling soil or deepening and thickening a spongy soil layer, and the effect of the common tamping machine is enhanced to save construction cost and human and material resources. The processing manufacturing cost of the foundation is reduced, and the present invention is the simplest and most convenient construction method in processes of deepening and thickening the spongy soil layer and reinforcing and constructing the foundation.
Description
Technical field
The present invention relates to the building lot reinforcing and processing method, especially relate to a kind of super dark compacted dynamic compaction that is used for backfill or deep soft soil horizon ground stabilization.
Background technology
In construction work, to reinforce ground earlier, to improve intensity, bearing capacity and the stability of foundation soil, just can carry out next step construction.Construction party dynamic compaction commonly used is come Ground Treatment at present, promptly directly tamps natural stratum or the less backfill of thickness with weight, and dynamic compaction can give construction party with satisfied effect.If but run into the bigger phenomenon of backfill or soft soil horizon thickness (local even more than 10m), and traditional dynamic compaction and weight then act on not quite, and shortcoming is obvious, be that reinforcement depth does not reach requirement, deep layer compactness and foundation strength are all lower, and bearing capacity is poor, and sedimentation appears in ground easily.Is mud as ground than the depths, and dynamic compaction also the earthquake liquefaction phenomenon can occur.And the common rammer machine (being that 30T is with interior medium and small rammer machine) that accounts for the domestic existing same category of device overwhelming majority is that the bulky earthen fill zone is rammed poor effect by force at deep soft soil horizon, can't carry out deep foundation reinforces, large-scale rammer machine (more than the 50T) quantity again less, the cost height, general medium-sized and small enterprises are difficult to be equipped with, middle-size and small-size project is difficult to again bear to the operating expenses of large-scale rammer machine, and large-scale rammer machine is from great, and place soft soil horizon intensity is low and be difficult to walking, can't construct.
Summary of the invention
The object of the present invention is to provide a kind of super dark compacted dynamic compaction that is used for backfill or deep soft soil horizon ground stabilization, this dynamic compaction can be clicked the rammer energy, not increase under the same terms of rammer machine elevating capacity not increasing, the effective reinforcement depth raising (is reached 10-20m) more than 1 times, reinforcing groundwork intensity and stability improves greatly, settling amount obviously reduces, and bearing capacity obviously strengthens.
The object of the present invention is achieved like this: super dark compacted dynamic compaction of the present invention, and feature is:
(1), levelling of the land: by design elevation, dig, fill out, the earthwork of smooth place;
(2), first pass tamping point construction:
A, unwrapping wire are layouted: by designing requirement, the location unwrapping wire is determined tamping point;
B, once strong ram compacted: specifying tamping point, carry out dynamic consolidation construction first with super dark compacted strong hammer ram, hammer end static pressure value into shape about 120KPa, crater depth is controlled in the 3m;
C, tamping pit backfill: in the tamping pit after strong rammer is compacted, backfill aggregate, and smooth place;
D, secondary ram compacted by force: carry out dynamic consolidation construction once more with super dark compacted strong hammer ram, crater depth is controlled in the 2m;
E, tamping pit are filled out again: backfill aggregate in tamping pit, and smooth place:
(3), second time tamping point construction:
A, unwrapping wire are layouted: locate unwrapping wire once more, determine tamping point;
B, once strong ram compacted: specifying tamping point, carry out dynamic consolidation construction first with super dark compacted strong hammer ram, hammer end static pressure value into shape about 120Kpa, crater depth is controlled in the 3m;
C, tamping pit backfill: in the tamping pit after strong rammer is compacted, backfill aggregate, and smooth place;
D, secondary ram compacted by force: carry out dynamic consolidation construction once more with super dark compacted strong hammer ram, crater depth is controlled in the 2m;
E, tamping pit are filled out again: backfill aggregate in tamping pit, and smooth place:
(4), the general rammer of the whole audience: after super dark compacted strong rammer finished, the whole audience carried out general rammer, and hammer end static pressure value is about 25KPa, and general rammer rams seal overlap joint area should be more than 30%.
After the construction of second time tamping point finishes, also to carry out the 3rd time tamping point construction, the general rammer of the whole audience again after the 3rd time tamping point construction finishes.
Described aggregate can be in place soil or the sandstone material a kind of.Inserting sandstone material is in order to make the super dark compacted stub of rubble in ground, to satisfy specific (special) requirements or super dark displacement, to squeeze and become silted up.
The present invention has following advantage:
1, clicks the rammer energy, do not increase under the same terms of rammer machine elevating capacity not increasing, the effective reinforcement depth raising (is reached 10-20m) more than 1 times, reinforcing groundwork intensity and stability improves greatly, settling amount and settlement difference obviously reduce, bearing capacity obviously strengthens, and can reach the double effects of super dark compacted and deep layer displacement simultaneously;
2, the common rammer machine that has solved medium and small tonnage rams the technical barrier of poor effect by force at backfill or deep soft soil horizon;
3, improved common rammer machine effect: common rammer machine uses the present invention can reach the effect and the effect of large-scale rammer machine (more than the 50T);
4, solved that large-scale rammer machine quantity is few, cost is high, general middle-size and small-size construction enterprises are difficult to be equipped with, middle-size and small-size project is difficult to the cost issues of bearing again, and has solved large-scale rammer machine because of from great, the low construction operation difficult problem that can't walk of place soft soil horizon intensity;
5, have effect of one machine multiple purposes:
(1) can carry out common strong rammer: can be used as general dynamic consolidation construction equipment and use;
(2) can be used for super dark compacted construction: be applicable to that super dark backfill deep layer is compacted;
(3) can use as the sandstone replacing apparatus: backfill sandstone in super dark tamping pit, can carry out the foundation soil displacement or make sandstone stub (big and heavy stone);
(4) super dark squeezing become silted up: for the underground ground that weak substratum is arranged in place, have more the removing silt for replacement effect;
6, save construction cost and human and material resources, reduce ground and handle cost.
The present invention is the easiest job practices in the present deep soft soil horizon foundation dynamic consolidation consolidation process construction.
Description of drawings
Fig. 1 is the structural representation of super dark compacted strong hammer ram;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is described in further detail.
Embodiment 1:
Super dark compacted dynamic compaction:
(1), levelling of the land: by design elevation, dig, fill out, the earthwork of smooth place;
(2), first pass tamping point construction:
A, unwrapping wire are layouted: by designing requirement, the location unwrapping wire is determined tamping point;
B, once strong ram compacted: specifying tamping point, carry out dynamic consolidation construction first with super dark compacted strong hammer ram, hammer end static pressure value into shape about 120KPa, crater depth is controlled in the 3m;
C, tamping pit backfill: in the tamping pit after strong rammer is compacted, backfill place soil, and smooth place;
D, secondary ram compacted by force: carry out dynamic consolidation construction once more with super dark compacted strong hammer ram, crater depth is controlled in the 2m;
E, tamping pit are filled out again: backfill place soil in tamping pit, and smooth place:
(3), second time tamping point construction:
A, unwrapping wire are layouted: locate unwrapping wire once more, determine tamping point;
B, once strong ram compacted: specifying tamping point, carry out dynamic consolidation construction first with super dark compacted strong hammer ram, hammer end static pressure value into shape about 120Kpa, crater depth is controlled in the 3m;
C, tamping pit backfill: in the tamping pit after strong rammer is compacted, backfill place soil, and smooth place;
D, secondary ram compacted by force: carry out dynamic consolidation construction once more with super dark compacted strong hammer ram, crater depth is controlled in the 2m;
E, tamping pit are filled out again: backfill place soil in tamping pit, and smooth place:
(4), the general rammer of the whole audience: after super dark compacted strong rammer finished, the whole audience carried out general rammer, and hammer end static pressure value is about 25KPa, and general rammer rams seal overlap joint area should be more than 30%.
Super dark compacted strong hammer ram comprises the hammer body 4 of hanging axis 1, axle ear 2 and truncated cone-shaped, is processed with the steam vent 3 that vertically runs through hammer body 4 in the centre of hammer body 4.
Hammer body 4 is made up of upper strata hammer body 5, middle level hammer body 6 and lower floor's hammer body 7 three parts, and it is perfused with concrete or cast iron concrete in hammer body 5 at the middle and upper levels, is perfused with cast iron concrete or cast iron in the middle level hammer body 6, is perfused with cast iron or casting lead in lower floor's hammer body 7.The height of upper strata hammer body 5, middle level hammer body 6 and lower floor's hammer body 7 respectively is 1/3rd of hammer body 4 height.
Embodiment 2:
The super dark compacted strong hammer ram of embodiment 2 is identical with embodiment 1, and the step (1) of the super dark compacted strong rammer dynamic compaction of embodiment 2, (2), (3) are identical with embodiment 1, and difference is:
(4), the 3rd time tamping point construction:
A, unwrapping wire are layouted: locate unwrapping wire once more, determine tamping point;
B, once strong ram compacted: specifying tamping point, carry out dynamic consolidation construction first with super dark compacted strong hammer ram, hammer end static pressure value into shape about 120Kpa, crater depth is controlled in the 3m;
C, tamping pit backfill: in the tamping pit after strong rammer is compacted, backfill sandstone material, and smooth place;
D, secondary ram compacted by force: carry out dynamic consolidation construction once more with super dark compacted strong hammer ram, crater depth is controlled in the 2m;
E, tamping pit are filled out again: backfill sandstone material in tamping pit, and smooth place:
(5), the general rammer of the whole audience: after super dark compacted strong rammer finished, the whole audience carried out general rammer, and hammer end static pressure value is about 25KPa, and general rammer rams seal overlap joint area should be more than 30%.
The construction of first pass tamping point, second time tamping point construction, the 3rd time used aggregate of tamping point construction are sandstone material, and inserting sandstone material is in order to make the super dark compacted stub of rubble in ground, to satisfy specific (special) requirements or super dark displacement, to squeeze and become silted up.
Claims (2)
1, a kind of super dark compacted dynamic compaction is characterized in that:
(1), levelling of the land: by design elevation, dig, fill out, the earthwork of smooth place;
(2), first pass tamping point construction:
A, unwrapping wire are layouted: by designing requirement, the location unwrapping wire is determined tamping point;
B, once strong ram compacted: specifying tamping point, carry out dynamic consolidation construction first with super dark compacted strong hammer ram, hammer end static pressure value into shape about 120KPa, crater depth is controlled in the 3m;
C, tamping pit backfill: in the tamping pit after strong rammer is compacted, backfill aggregate, and smooth place;
D, secondary ram compacted by force: carry out dynamic consolidation construction once more with super dark compacted strong hammer ram, crater depth is controlled in the 2m;
E, tamping pit are filled out again: backfill aggregate in tamping pit, and smooth place:
(3), second time tamping point construction:
A, unwrapping wire are layouted: locate unwrapping wire once more, determine tamping point;
B, once strong ram compacted: specifying tamping point, carry out dynamic consolidation construction first with super dark compacted strong hammer ram, hammer end static pressure value into shape about 120Kpa, crater depth is controlled in the 3m;
C, tamping pit backfill: in the tamping pit after strong rammer is compacted, backfill aggregate, and smooth place;
D, secondary ram compacted by force: carry out dynamic consolidation construction once more with super dark compacted strong hammer ram, crater depth is controlled in the 2m;
E, tamping pit are filled out again: backfill aggregate in tamping pit, and smooth place:
(4), the general rammer of the whole audience: after super dark compacted strong rammer finished, the whole audience carried out general rammer, and hammer end static pressure value is about 25KPa, and general rammer rams seal overlap joint area should be more than 30%.
2, super dark compacted dynamic compaction as claimed in claim 1 is characterized in that: what described aggregate can be in place soil or the sandstone material is a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116272 CN1189628C (en) | 2003-04-07 | 2003-04-07 | Extradeep extruding and ramming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116272 CN1189628C (en) | 2003-04-07 | 2003-04-07 | Extradeep extruding and ramming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1441122A CN1441122A (en) | 2003-09-10 |
| CN1189628C true CN1189628C (en) | 2005-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116272 Expired - Lifetime CN1189628C (en) | 2003-04-07 | 2003-04-07 | Extradeep extruding and ramming method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1189628C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967819B (en) * | 2009-07-27 | 2012-05-30 | 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 |
| CN101787689B (en) * | 2010-03-26 | 2012-08-22 | 中国十九冶集团有限公司 | Forced ramming construction method for high slope filling with Xigeda soil |
| CN102251514A (en) * | 2011-06-15 | 2011-11-23 | 谢开生 | Multi-section type variable cross-section dynamic compaction method |
| CN103727915A (en) * | 2012-10-13 | 2014-04-16 | 成都进界科技有限公司 | Dynamic compaction depth automatic detection system based on photoelectric encoder |
| CN104264653B (en) * | 2014-07-21 | 2016-08-24 | 山西机械化建设集团公司 | Ultra high energy level strong rammer construction technology compatible with displacement |
| CN106087946A (en) * | 2016-06-13 | 2016-11-09 | 贵州正业工程技术投资有限公司 | A kind of carbonate rock boulder strong rammer is combined to change to fill changes foundation reinforcement method |
| CN110761264A (en) * | 2019-10-18 | 2020-02-07 | 中国有色金属工业昆明勘察设计研究院有限公司 | Secondary dynamic compaction gravel replacement and reinforcement method for coastal sludge soft soil foundation |
-
2003
- 2003-04-07 CN CN 03116272 patent/CN1189628C/en not_active Expired - Lifetime
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| CN1441122A (en) | 2003-09-10 |
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Application publication date: 20030910 Assignee: JIANGXI JIYE TECHNOLOGY Co.,Ltd. Assignor: Special soft foundation branch of Jiangxi Zhongheng Construction Group Co.,Ltd. Contract record no.: 2014360000085 Denomination of invention: Extradeep extruding and ramming method Granted publication date: 20050216 License type: Exclusive License Record date: 20140528 |
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Granted publication date: 20050216 |