CN112729030A - All-weather construction method for intertidal zone blasting and silt squeezing - Google Patents
All-weather construction method for intertidal zone blasting and silt squeezing Download PDFInfo
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- CN112729030A CN112729030A CN202011539596.4A CN202011539596A CN112729030A CN 112729030 A CN112729030 A CN 112729030A CN 202011539596 A CN202011539596 A CN 202011539596A CN 112729030 A CN112729030 A CN 112729030A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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Abstract
The invention discloses an all-weather construction method for squeezing silt through intertidal zone blasting, which is characterized in that two arc-shaped explosion lines are arranged, and are detonated simultaneously when the tide rises, the height of a silt bag is increased, a water storage depression is formed, a single-line explosion line is arranged after stones are dumped and filled, when the tide falls, the water level in a water storage tank is continuously blasted to provide an underwater environment, the single-line explosion line blasting operation is implemented, and then the stones are dumped and filled. The underwater blasting is circulated, so that all-weather underwater blasting is realized. The method utilizes the tide rising rule, improves the blasting construction efficiency on the premise of not influencing the construction progress, and realizes all-weather blasting sludge squeezing construction.
Description
Technical Field
The invention relates to the field of geotechnical engineering and roadbed engineering, in particular to an all-weather construction method for intertidal zone blasting and compaction.
Background
The blasting, silt squeezing and stone throwing method is widely applied to projects such as coastal roadbed construction, sea reclamation, port wharfs and the like, however, blasting and silt squeezing operation is carried out in coastal intertidal zones, the influence of rising tide on the blasting and silt squeezing construction effect is large, the blasting effect is good when the tide is full, the blasting effect is poor when the tide falls, particularly when the silt surface is exposed to water, in order to improve the blasting effect, blasting points are usually distributed when the tide is low, and the blasting operation is carried out when the tide is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing an all-weather construction method for intertidal zone blasting and sludge squeezing, which utilizes the tide rising rule to improve the blasting construction efficiency and realize all-weather blasting and sludge squeezing construction on the premise of not influencing the construction progress.
Therefore, the all-weather construction method for intertidal zone blasting and compaction provided by the invention comprises the following steps,
(1) designing and calculating the blasting operation, and determining the explosive quantity of a plurality of blasting points on a blasting line;
(2) arranging two blasting lines, wherein a plurality of flood tide explosion points are uniformly distributed on the two blasting lines, and explosives are respectively embedded in the flood tide explosion points;
(3) after flood tide, detonating explosion points on the two blasting lines simultaneously, and forming a sludge bag by the surrounding soil to form a water storage depression;
(4) the method comprises the following steps of (1) throwing and filling stones, and arranging single-line blasting lines, wherein a plurality of tide falling blasting points are arranged on the single-line blasting lines, and explosives are arranged on the tide falling blasting points;
(5) after the tide falls, water is stored in the water storage depression, single-line blasting is implemented, the water storage depression is always in an underwater environment in the blasting process, and after blasting operation is completed, stones are thrown and filled until the structure of the embankment body is balanced and stable to reach the designed elevation.
The invention provides an all-weather construction method for intertidal zone multi-explosion points, which is characterized in that two explosion lines are detonated at the same time for the first time, soft soil around the explosion points is used for rising to form sludge bags, natural barriers for preventing tide water from being removed during tide falling are formed, and water storage depressions are formed by the sludge bags and contour lines of an exploded dam. When the tide falls, a single blasting line is buried, and even when the tide falls, water is still stored in the water storage depression and is always in an underwater environment in the blasting process. And the sludge at the explosion point is ensured to be always below the water surface, so that the explosion effect and quality are improved. The requirement of explosion water depth is solved, and the situations of dry explosion danger and poor effect are avoided. The blasting operation can be carried out during the rising and falling tide of the intertidal zone, the construction efficiency is improved, the blasting and silt squeezing operation can be carried out in all weather, and the underwater blasting environment is ensured to be always in. The method is simple and easy to implement, flexible in construction, free of tide-waiting operation, and capable of conducting multiple blasting operations in one day in a tide. The sludge bag does not need to be dug and removed, and the detonation frequency is increased by utilizing the action of the 'reservoir' of the sludge bag. And multiple explosion points are detonated, so that the speed of throwing and filling stones is increased, the construction efficiency is effectively improved, and the explosion effect and quality are improved.
Drawings
FIG. 1 is a schematic diagram of the construction method for intertidal zone blasting compaction in all-weather construction, after blasting at flood tide;
FIG. 2 is a schematic plan view of two blasting lines at flood tide in the intertidal zone blasting compaction all-weather construction method provided in FIG. 1;
FIG. 3 is a schematic view of a single blasting line during tide falling in the all-weather construction method of intertidal zone blasting and silt squeezing provided in FIG. 1;
FIG. 4 is a schematic plan view of a single blasting line during tide down in the all-weather construction method of intertidal zone blasting and silt squeezing provided in FIG. 1;
FIG. 5 is a schematic flow chart of the intertidal zone blasting compaction all-weather construction method provided in FIG. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1 to 5, a first embodiment of the present invention provides an all-weather construction method of intertidal zone blasting compaction, which includes the following steps,
(1) and (4) carrying out blasting operation design calculation, and determining the explosive quantity of multiple explosion points on the blasting line.
Explosive quantity calculation formula:
qʹ L =q 0 L H H mw
H mw = H m + ()H w
in the formulaqʹ L Is the thread-distribution dosage (kg/m), namely the dosage distributed on the unit medicine-distribution length. The explosive can be rock No. 2Ammonium nitrate explosive. When other explosives are also used, the other explosives are determined according to appendix B of technical Specification for blasting in Water transportation engineering (JTS 204-2008).
q 0The method is characterized by comprising the step of carrying out explosive single consumption (kg/m) namely blasting to remove the required explosive amount of sludge in unit volume, and selecting the explosive amount according to table 4.3.13-1 in technical Specification for blasting in Water transportation engineering (JTS 204-2008).
L H Is the horizontal distance (m) of one-time propelling of blasting, silt-removing and stone-filling. The selection is carried out according to the table 4.3.13-2 in technical Specification for blasting in Water transportation engineering (JTS 204-2008).
H mw Is the converted sludge thickness (m) taken into the depth of the covering water;
H m is the displaced sludge thickness (m), the sludge-containing bag ridge height;
r w (iii) water gravity (KN/m);
r m is silt severe (kN/m);
H w the cover water depth (m) is the water depth above the mud surface.
(2) Two blasting lines are arranged, a plurality of flood tide explosion points are uniformly distributed on the two blasting lines, and explosives are respectively buried in the flood tide explosion points. The two explosion lines are distributed in an arc shape.
The two blasting lines comprise a real blasting line 1 and a virtual blasting line 2, a plurality of first flood tide explosion points 3 are arranged on the real blasting line 1, a plurality of second flood tide explosion points 4 are arranged on the virtual blasting line 2, the depth of each second flood tide explosion point 4 is half of that of each first flood tide explosion point 3, and the distance between the real blasting line 1 and the virtual blasting line 2 is 1.05-1.5 times of the blasting length.
According to the engineering design, the blasting footage length is 6.0M, ten first tide rising explosion points 3 are distributed on the solid blasting line 1, and the embedding depth of the first tide rising explosion points is 6.0M. Ten second flood tide explosion points 4 are distributed on the virtual explosion line, and the embedding depth of the second flood tide explosion points 4 is 3.0M.
The sum of the explosive quantities distributed in the first flood tide explosion points 3 on the real explosion line is the explosive quantity of the multiple explosion points on the explosion line determined in the step (1), and the sum of the explosive quantities distributed in the second flood tide explosion points 4 on the virtual explosion line is half of the sum of the explosive quantities distributed in the first flood tide explosion points 3 on the real explosion line.
(3) After the flood tide, detonation points on the two detonating cords are detonated simultaneously, namely a first flood tide detonation point 3 and a second flood tide detonation point 4, and the detonation time is preferably at the flood tide time, wherein sludge at the positions of the first flood tide detonation point and the second flood tide detonation point is below the tide water. After blasting, the irregular end face of the embankment becomes a post-blasting contour line, the surrounding soil rises to form a sludge bag 5, the rising tide level 11 is divided into two parts, the post-blasting outer contour line 7 of the embankment 6 and the sludge bag 5 form a water storage depression 8, and the water level in the water storage depression 8 exceeds the sludge level.
(4) And (3) carrying out stone throwing and filling on the blasting pit after blasting, and then arranging a single line blasting line 9, wherein a plurality of tide falling and blasting points 10 are arranged on the single line blasting line, and the embedding depth of the tide falling and blasting points is 6.0M. The single-line blasting lines are buried in sludge below the water storage depression 8, the single-line blasting lines 9 are distributed in an arc shape, and ten tide falling blasting points are distributed on the single-line blasting lines 9. And (3) burying explosives in the tide falling explosion points 10, wherein the sum of the explosive quantities of the tide falling explosion points arranged on the single-line explosion line 9 is the explosive quantity of the multiple explosion points on the explosion line calculated and determined in the step (1).
(5) After the tide falls, water is stored in the water storage depression 8, single-line blasting operation of the blasting line 9 is implemented, and the water storage depression ensures that the blasting process is always in an underwater environment. And after the blasting operation is finished, the riprap is thrown until the structure of the embankment body is balanced and stable to reach the designed elevation.
After the process is finished, two-line blasting-single-line blasting is continuously adopted, and the two-line blasting-single-line blasting is circularly carried out, so that all-weather blasting is realized.
According to the invention, two blasting lines are detonated simultaneously for the first time, soft soil around the blasting points is used for rising to form sludge bags, a natural barrier for preventing tide and water from receding during tide falling is formed, and the sludge bags 5 and the contour line 7 of the blasted dam form a water storage depression. When the tide falls, the single-line blasting line 9 is buried, and even if the tide falls, the water storage depression still stores water, so that the single-line blasting line 9 blasting operation is implemented. The water storage depression provides an underwater environment for blasting operation in the case of tide fall, and the two blasting lines and the single blasting line 9 are always in the underwater environment in the blasting operation process. The requirement of explosion water depth is solved, and the situations of dry explosion danger and poor effect are avoided. The blasting operation can be carried out during the rising and falling tide of the intertidal zone, the construction efficiency is improved, the blasting and silt squeezing operation can be carried out in all weather, and the underwater blasting environment is ensured to be always in. The silt at the rising tide explosion point and the falling tide explosion point is always below the water surface, so that the explosion effect and quality are improved. The method is simple and easy to implement, flexible in construction, free of tide-waiting operation, and capable of conducting multiple blasting operations in one day in a tide. The sludge bag does not need to be dug and removed, and the detonation frequency is increased by utilizing the action of the 'reservoir' of the sludge bag. And multiple explosion points are detonated, so that the speed of throwing and filling stones is increased, the construction efficiency is effectively improved, and the explosion effect and quality are improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. An all-weather construction method for intertidal zone blasting and silt squeezing is characterized by comprising the following steps: the steps are as follows,
(1) designing and calculating the blasting operation, and determining the explosive quantity of a plurality of blasting points on a blasting line;
(2) arranging two blasting lines, wherein a plurality of flood tide explosion points are uniformly distributed on the two blasting lines, and explosives are respectively embedded in the flood tide explosion points;
(3) after flood tide, detonating explosion points on the two blasting lines simultaneously, and forming a sludge bag by the surrounding soil to form a water storage depression;
(4) the method comprises the following steps of (1) throwing and filling stones, and arranging single-line blasting lines, wherein a plurality of tide falling blasting points are arranged on the single-line blasting lines, and explosives are arranged on the tide falling blasting points;
(5) after the tide falls, water is stored in the water storage depression, single-line blasting is implemented, the water storage depression is always in an underwater environment in the blasting process, and after blasting operation is completed, stones are thrown and filled until the structure of the embankment body is balanced and stable to reach the designed elevation.
2. The intertidal zone blasting and silt squeezing all-weather construction method as claimed in claim 1, which is characterized in that: in the step (1), the explosive quantity calculation formula is as follows:
qʹ L =q 0 L H H mw
H mw = H m + ()H w
in the formulaqʹ L The dosage is the thread distribution dosage (kg/m), namely the dosage distributed on the unit distribution length;
q 0explosive single consumption (kg/m) is realized, namely the explosive quantity required by the sludge in unit volume is exploded;
L H the horizontal distance (m) of one-time propelling of blasting, silt removing and stone filling is adopted;
H mw is the converted sludge thickness (m) taken into the depth of the covering water;
H m is the displaced sludge thickness (m), the sludge-containing bag ridge height;
r w (iii) water gravity (KN/m);
r m is silt severe (kN/m);
H w the cover water depth (m) is the water depth above the mud surface.
3. The all-weather construction method for intertidal zone blasting and sludge extrusion as claimed in claim 1 or 2, wherein the all-weather construction method comprises the following steps: in the step (2), the two blasting lines comprise a real blasting line and a virtual blasting line, the real blasting line is provided with a plurality of first flood tide explosion points, the virtual blasting line is provided with a plurality of second flood tide explosion points, the depth of the second flood tide explosion points is half of that of the first flood tide explosion points, and the distance between the real blasting line and the virtual blasting line is 1.05-1.5 times of the length of the blasting advance ruler.
4. The intertidal zone blasting and silt squeezing all-weather construction method as claimed in claim 3, which is characterized in that: the sum of the explosive quantities distributed in the first flood tide explosion points on the real explosion line is the explosive quantity of the multiple explosion points on the explosion line determined in the step (1), and the sum of the explosive quantities distributed in the second flood tide explosion points on the virtual explosion line is half of the sum of the explosive quantities distributed in the first flood tide explosion points on the real explosion line.
5. The all-weather construction method for intertidal zone blasting and compaction as claimed in claim 1, 2 or 4, wherein the all-weather construction method comprises the following steps: and (2) detonating the two blasting lines simultaneously, wherein when the blasting time is half tide rising, the surrounding soil rises to form a sludge bag after the blasting, the rising tide level is divided into two parts, the outer contour line of the embankment after the blasting and the sludge bag form a water storage depression, and the water level surface in the water storage depression exceeds the sludge surface.
6. The all-weather construction method for intertidal zone blasting and sludge extrusion as claimed in claim 1 or 2, wherein the all-weather construction method comprises the following steps: in the step (4), the total explosive amount of the plurality of tide falling explosion points arranged on the single line blasting line is the explosive amount of the plurality of explosion points on the blasting line calculated and determined in the step (1).
7. The all-weather construction method of intertidal zone blasting compaction as claimed in claim 1, 2, 3 or 4, wherein: the explosive is a No. 2 rock ammonium nitrate explosive.
8. The intertidal zone blasting and silt squeezing all-weather construction method as claimed in claim 5, which is characterized in that: the two explosion lines and the single explosion line are distributed in an arc shape.
9. The intertidal zone blasting and silt squeezing all-weather construction method as claimed in claim 6, which is characterized in that: the single explosion lines are distributed in an arc shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011539596.4A CN112729030A (en) | 2020-12-23 | 2020-12-23 | All-weather construction method for intertidal zone blasting and silt squeezing |
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| CN202011539596.4A CN112729030A (en) | 2020-12-23 | 2020-12-23 | All-weather construction method for intertidal zone blasting and silt squeezing |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116006A (en) * | 2011-03-23 | 2011-07-06 | 大连市市政设计研究院有限责任公司 | Method for building sea filling embankment |
| CN104406471A (en) * | 2014-10-23 | 2015-03-11 | 沈雪松 | Diversion blasting construction method of intertidal zone blasting displacement bank |
| CN106284290A (en) * | 2016-08-08 | 2017-01-04 | 中国建筑土木建设有限公司 | Thicker sandy gravel interlayer explosive replacement construction method |
| CN106643359A (en) * | 2016-08-17 | 2017-05-10 | 中交航局第三工程有限公司 | Method for treating residual silt in slope shoulder position through blasting silt extrusion |
| KR101925260B1 (en) * | 2018-08-08 | 2018-12-04 | 배용철 | Water blasting method |
-
2020
- 2020-12-23 CN CN202011539596.4A patent/CN112729030A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116006A (en) * | 2011-03-23 | 2011-07-06 | 大连市市政设计研究院有限责任公司 | Method for building sea filling embankment |
| CN104406471A (en) * | 2014-10-23 | 2015-03-11 | 沈雪松 | Diversion blasting construction method of intertidal zone blasting displacement bank |
| CN106284290A (en) * | 2016-08-08 | 2017-01-04 | 中国建筑土木建设有限公司 | Thicker sandy gravel interlayer explosive replacement construction method |
| CN106643359A (en) * | 2016-08-17 | 2017-05-10 | 中交航局第三工程有限公司 | Method for treating residual silt in slope shoulder position through blasting silt extrusion |
| KR101925260B1 (en) * | 2018-08-08 | 2018-12-04 | 배용철 | Water blasting method |
Non-Patent Citations (1)
| Title |
|---|
| 杨才亮等: "爆炸排淤填石在某围垦防波堤施工中的应用", 《施工技术》 * |
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