CN114673130A - Method and device for reinforcing backfill soil in limited space by grouting moso bamboo - Google Patents
Method and device for reinforcing backfill soil in limited space by grouting moso bamboo Download PDFInfo
- Publication number
- CN114673130A CN114673130A CN202210304591.6A CN202210304591A CN114673130A CN 114673130 A CN114673130 A CN 114673130A CN 202210304591 A CN202210304591 A CN 202210304591A CN 114673130 A CN114673130 A CN 114673130A
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- bamboo
- grouting
- moso
- slip casting
- reinforcing
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- 244000302661 Phyllostachys pubescens Species 0.000 title claims abstract description 64
- 235000003570 Phyllostachys pubescens Nutrition 0.000 title claims abstract description 64
- 239000002689 soil Substances 0.000 title claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 24
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 94
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 94
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 94
- 241001330002 Bambuseae Species 0.000 claims abstract description 86
- 239000011425 bamboo Substances 0.000 claims abstract description 86
- 238000007569 slipcasting Methods 0.000 claims abstract description 36
- 238000010276 construction Methods 0.000 claims abstract description 11
- 239000003337 fertilizer Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 3
- 241000209128 Bambusa Species 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 description 5
- 238000005056 compaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 241000277275 Oncorhynchus mykiss Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- 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
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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
One or more embodiments of the present specification provide a method for reinforcing a backfill soil in a limited space by using a grouted moso bamboo and a device thereof, including leveling a construction site; selecting moso bamboos with certain specifications, opening all bamboo joints in the moso bamboos, and uniformly forming a plurality of grouting holes in the bamboo body; the processed moso bamboo is driven into a soil layer to be reinforced by a handheld vibrator; blocking the top end of the moso bamboo by a counterweight plug with a grouting pipe; connecting the grouting pipes at the top ends of all the moso bamboos together, and performing one-time combined grouting on all the moso bamboos; and (5) finishing grouting after the ground bleeds, and lifting the counterweight plug. Can consolidate the confined space backfill, the construction is nimble to through inserting the mao bamboo earlier, once only carry out the joint slip casting to all mao bamboos again, because every slip casting hole has all produced slip casting pressure simultaneously, pressure balance, the thick liquid can not be because of there is pressure differential scurrying the hole, makes the slip casting more even, slip casting speed is faster, can improve the closely knit degree of backfill after the slip casting, reduce the backfill settlement after the worker.
Description
Technical Field
One or more embodiments of the present disclosure relate to the field of building technologies, and in particular, to a method and an apparatus for reinforcing a backfill soil in a limited space by using grouted moso bamboos.
Background
The compaction grouting is to use higher pressure to pour cement slurry or chemical slurry with larger concentration, and the slurry always fills larger gaps when the grouting is started and then permeates into soil body pores under larger pressure. And extruding the soil body along with the increase of the pore water pressure of the soil layer until a shear crack occurs, generating cleavage, and filling the crack with the slurry to form slurry veins so as to form a new reticular skeleton structure in the soil body. In the forming process, the grout vein occupies a part of space in the soil body, and the pores in the soil layer are penetrated by the grout, so that the soil body is compacted to form a new grout vein composite foundation, the strength and the seepage-proofing performance of the soil body are improved, the physical and mechanical properties of the soil body are changed, and the bearing capacity of the soft soil foundation is improved.
However, the applicant has found that the prior art has at least the following problems:
the existing compaction grouting technology sinks the pipe before grouting, grouting and pipe drawing are carried out during grouting, the pipe sinking and pipe drawing and grouting work cannot be independently completed due to the influence of a construction process, and the pipe sinking and pipe drawing and grouting work need to be finished at one time for a single grouting hole, so that the grouting time is long, and the grouting efficiency is low.
Disclosure of Invention
In view of this, an object of one or more embodiments of the present disclosure is to provide a method and a device for reinforcing backfill in a limited space by using grouting mao bamboos, so as to solve the problems that in the existing compaction grouting technology, a pipe is sunk before grouting, grouting and pipe drawing are performed simultaneously, the pipe sinking and pipe drawing and grouting work cannot be completed independently due to the influence of a construction process, and the pipe sinking and pipe drawing and grouting work need to be completed at one time for a single grouting hole, so that the grouting time is long and the grouting efficiency is low.
In view of the above, one or more embodiments of the present specification provide a method for reinforcing a backfill soil in a confined space using a grouted moso bamboo, comprising:
leveling a construction site;
selecting moso bamboos with certain specifications, opening all bamboo joints in the moso bamboos, and uniformly forming a plurality of grouting holes in the bamboo body;
the processed moso bamboo is driven into a soil layer to be reinforced by a handheld vibrator;
blocking the top end of the moso bamboo by a counterweight plug with a grouting pipe;
connecting the grouting pipes at the top ends of all the moso bamboos together, and performing one-time combined grouting on all the moso bamboos;
and (5) finishing grouting after the ground bleeds, and lifting the counterweight plug.
Optionally, when the moso bamboos with certain specifications are selected, the moso bamboos with straight bamboo bodies are selected, and the outer diameters of the moso bamboo bodies are 50 +/-5 mm.
Optionally, the Mao bamboo joints are burnt by burning the red steel bar heads, and a plurality of grouting holes are uniformly formed in the bamboo body through a burning method.
Optionally, the soil layer to be reinforced comprises a foundation pit fertilizer groove, and for the foundation pit fertilizer groove, soil is backfilled after moso bamboos are pre-buried in advance.
Optionally, the top end of the moso bamboo is connected with the counterweight plug in a sealing manner.
Optionally, the grouting pressure is controlled to be 0.2-0.3MPa during one-time combined grouting.
The invention also provides a device for reinforcing the backfill soil in the limited space by using the grouting moso bamboos, which comprises a bamboo body, wherein a plurality of bamboo body grouting holes are formed in the whole body of the bamboo body, bamboo joints are arranged in the bamboo body, through holes are formed in the bamboo joints, two ends of the bamboo body are open, a counterweight plug is arranged at the top end of the bamboo body in a matched mode, the counterweight plug blocks the port at the top end of the bamboo body, a grouting pipe is inserted into the counterweight plug, and the grouting pipe extends downwards into the bamboo body.
Optionally, the counterweight plug includes the balancing weight, and the balancing weight bottom is equipped with the dead slot, and integrated into one piece has the piston in the dead slot of balancing weight, and the piston is installed the sealing washer with the top port looks adaptation of bamboo body, piston week side.
Optionally, the weight plug weight is greater than or equal to 25 kg.
As can be seen from the above, the method for reinforcing the backfill soil in the limited space by using the grouted moso bamboos provided by the specification is implemented by leveling the construction site; selecting moso bamboos with certain specifications, opening all bamboo joints in the moso bamboos, and uniformly forming a plurality of grouting holes in the bamboo body; the processed moso bamboo is driven into a soil layer to be reinforced by a handheld vibrator; blocking the top end of the moso bamboo by a counterweight plug with a grouting pipe; connecting the grouting pipes at the top ends of all the moso bamboos together, and performing one-time combined grouting on all the moso bamboos; after the ground is grouted, finishing grouting, and lifting the counterweight plug; can consolidate the confined space backfill, the construction is nimble to through inserting the mao bamboo earlier, once only unite the slip casting to all mao bamboos again, because every slip casting hole has all produced slip casting pressure simultaneously, pressure balance, the thick liquid can not be because of there is pressure differential scurrying the hole, makes the slip casting more even, the reinforcement effect is better, the slip casting speed is faster, can improve the closely knit degree of backfill, reduce the settlement after the backfill worker after the slip casting.
Meanwhile, according to the device for reinforcing the backfill soil in the limited space by using the grouting moso bamboos, a plurality of bamboo body grouting holes are formed in the whole bamboo body, bamboo joints are arranged in the bamboo body, through holes are formed in the bamboo joints, two ends of the bamboo body are open, a balance weight plug is mounted at the top end of the bamboo body in an adaptive mode, the top end of the bamboo body is blocked by the balance weight plug, a grouting pipe is inserted into the balance weight plug, and the grouting pipe extends downwards to the interior of the bamboo body. And performing combined grouting on all bamboo bodies, thereby playing a role in reinforcing the soft backfill soil body in the limited space.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
FIG. 1 is a schematic view of an apparatus for reinforcing a confined space backfill with grouted moso bamboos, according to one or more embodiments of the present disclosure;
FIG. 2 is a partial schematic view of an apparatus for reinforcing a confined space backfill with grouted mao bamboos, according to one or more embodiments of the present disclosure;
FIG. 3 is a first schematic flow chart of a method for reinforcing backfill soil in a confined space by grouting moso bamboos according to one or more embodiments of the present disclosure;
fig. 4 is a second flowchart illustrating a method for reinforcing backfill soil in a confined space by using grouted moso bamboos according to one or more embodiments of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
One or more embodiments of this description utilize slip casting mao bamboo to consolidate device of confined space backfill, as shown in fig. 1 and fig. 2, including bamboo body 1, a plurality of bamboo body slip casting holes 2 have been seted up around bamboo body 1, bamboo body 1 is inside to include the bamboo joint, is equipped with the perforation on the bamboo joint, 1 both ends of bamboo body are uncovered, and 1 top of bamboo body adaptation is installed counterweight plug 5, and counterweight plug 5 blocks 1 top port of bamboo body, insert grouting pipe 4 in the counterweight plug 5, grouting pipe 4 extends to bamboo body 1 inside downwards. When the bamboo body is used, the bamboo body 1 is driven into a soil layer to be reinforced, the top ends of the moso bamboos are plugged by the aid of the balance weight plugs 5 with grouting pipes, and the grouting pipes 4 at the top ends of the bamboo body 1 are connected together; and finally, performing combined grouting on all the bamboo bodies 1, thereby playing a role in reinforcing the soft backfill soil body in the limited space.
In some alternative embodiments, as shown in fig. 2, the weight plug 5 includes a weight block 52, a hollow groove is provided at the bottom of the weight block 52, a piston is integrally formed in the hollow groove of the weight block 52, the piston is adapted to the top end port of the bamboo body 1, and a sealing ring 51 is installed around the piston. When in use, the piston is inserted into the top end port of the bamboo body 1, and the seal ring 51 seals the piston.
In some alternative embodiments, the weight plug 5 weighs 25kg or more. Better blocking of the top of the bamboo body 1.
The working principle of the invention is as follows: when the bamboo body is used, the bamboo body 1 is driven into a soil layer to be reinforced, the top ends of the moso bamboos are plugged by the aid of the balance weight plugs 5 with grouting pipes, and the grouting pipes 4 at the top ends of the bamboo body 1 are connected together; and finally, performing combined grouting on all the bamboo bodies 1, thereby playing a role in reinforcing the soft backfill soil body in the limited space.
According to the above device for reinforcing the backfill soil in the limited space by using the grouting mao bamboos, the specification further provides a method for reinforcing the backfill soil in the limited space by using the grouting mao bamboos, which comprises the following steps:
102, selecting a moso bamboo with a certain specification, making all bamboo joints in the moso bamboo through, and uniformly forming a plurality of grouting holes in the bamboo body;
103, driving the processed moso bamboo into a soil layer to be reinforced by using a handheld vibrator;
104, plugging the top end of the moso bamboo by using a counterweight plug with a grouting pipe;
105, connecting the grouting pipes at the top ends of all the moso bamboos together, and performing one-time combined grouting on all the moso bamboos;
and step 106, finishing grouting after the ground is grouted, and lifting the counterweight plug.
When using, because the mao bamboo can insert as required, consequently can consolidate restricted space backfill, the construction is nimble, and through inserting the mao bamboo earlier, once only carry out the joint slip casting to all mao bamboos again, because every slip casting hole has all produced slip casting pressure simultaneously, pressure balance, the thick liquid can not be because of there is pressure differential scurrying the hole, make the slip casting more even, the reinforcing effect is better, slip casting speed is faster, can improve the closely knit degree of backfill after the slip casting, reduce the backfill settlement after the incident.
Wherein, step 102 further comprises: when the moso bamboo with a certain specification is selected, the moso bamboo with a straight bamboo body is selected, and the outer diameter of the moso bamboo body is 50 +/-5 mm. In the combined grouting process, the smoothness of grouting is more convenient.
Wherein, step 102 further comprises: burning the bamboo joint by burning the red reinforcing steel head, and uniformly arranging a plurality of grouting holes on the bamboo body by a burning method;
wherein, step 103 further comprises: the soil layer to be reinforced comprises a foundation pit fertilizer groove, and for the foundation pit fertilizer groove, a soil body is filled back after moso bamboos are pre-buried in advance.
Wherein, step 104 further comprises: the top end of the moso bamboo is connected with the counterweight plug in a sealing way. Guarantee the leakproofness of mao bamboo top and counter weight stopper, reveal when avoiding the slip casting.
The working principle of the invention is as follows: when using, because the mao bamboo can insert as required, consequently can consolidate restricted space backfill, the construction is nimble, and through inserting the mao bamboo earlier, once only carry out the joint slip casting to all mao bamboos again, because every slip casting hole has all produced slip casting pressure simultaneously, pressure balance, the thick liquid can not be because of there is pressure differential scurrying the hole, make the slip casting more even, the reinforcing effect is better, slip casting speed is faster, can improve the closely knit degree of backfill after the slip casting, reduce the settlement after the backfill worker.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations thereof will be apparent to those skilled in the art in light of the foregoing description.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (9)
1. A method for reinforcing backfill soil in a limited space by grouting moso bamboos is characterized by comprising the following steps:
step 101, leveling a construction site;
102, selecting a moso bamboo with a certain specification, dredging all bamboo joints in the moso bamboo, and uniformly forming a plurality of grouting holes on the bamboo body;
103, driving the processed moso bamboos into a soil layer to be reinforced by using a handheld vibrator;
104, plugging the top end of the moso bamboo by using a counterweight plug with a grouting pipe;
105, connecting the grouting pipes at the top ends of all the moso bamboos together, and performing one-time combined grouting on all the moso bamboos through the connected grouting pipes;
and step 106, finishing grouting operation when the ground is grouted, then lifting the counterweight plug, and finishing the process of reinforcing the backfill soil in the limited space.
2. The method for reinforcing backfill soil in a confined space using grouted moso bamboos according to claim 1, wherein step 102 further comprises: when the moso bamboo with a certain specification is selected, the moso bamboo with a straight bamboo body is selected, and the outer diameter of the moso bamboo body is 50 +/-5 mm.
3. The method of reinforcing a confined space backfill with slip casting Phyllostachys pubescens according to claim 1, wherein step 102 further comprises: burning the bamboo joint with fire to make the bamboo joint through burning, and uniformly arranging a plurality of grouting holes on the bamboo body through a burning method.
4. The method for reinforcing the backfill soil in the confined space by grouting bamboo according to claim 1, wherein the step 103 further comprises: the soil layer to be reinforced comprises a foundation pit fertilizer groove, and for the foundation pit fertilizer groove, a soil body is filled back after moso bamboos are pre-buried in advance.
5. The method of claim 1, wherein the step 104 further comprises: the top end of the moso bamboo is connected with the counterweight plug in a sealing way.
6. The method of reinforcing a confined space backfill with slip casting Phyllostachys pubescens according to claim 1, wherein step 105 further comprises: when the combined grouting is carried out once, the grouting pressure is controlled to be 0.2-0.3 MPa.
7. The utility model provides an utilize slip casting mao bamboo to consolidate device of restricted space backfill soil, its characterized in that, includes bamboo body (1), and a plurality of bamboo body slip casting hole (2) have been seted up around bamboo body (1), bamboo body (1) is inside including the bamboo joint, is equipped with the perforation on the bamboo joint, bamboo body (1) both ends are uncovered, and bamboo body (1) top adaptation is installed counter weight stopper (5), and counter weight stopper (5) block bamboo body (1) top port, slip casting pipe (4) have been inserted in counter weight stopper (5), and slip casting pipe (4) downwardly extending to inside bamboo body (1), slip casting pipe (4) are to the inside slip casting of bamboo body (1), and the perforation on the bamboo joint of flowing through flows through and flows through a plurality of bamboo body slip casting hole (2), finally pours into to the backfill soil into.
8. The device for reinforcing the backfill soil in the confined space by using the grouted moso bamboos as claimed in claim 7, wherein the counterweight plug (5) comprises a counterweight block (52), a hollow groove is formed at the bottom of the counterweight block (52), a piston is integrally formed in the hollow groove of the counterweight block (52), the piston is matched with the top end port of the bamboo body (1), and a sealing ring (51) is arranged on the periphery of the piston.
9. The device for reinforcing the backfill soil in the confined space by using the grouted moso bamboos as claimed in claim 7, wherein the weight of the weight plug (5) is equal to or more than 25 kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210304591.6A CN114673130A (en) | 2022-03-21 | 2022-03-21 | Method and device for reinforcing backfill soil in limited space by grouting moso bamboo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210304591.6A CN114673130A (en) | 2022-03-21 | 2022-03-21 | Method and device for reinforcing backfill soil in limited space by grouting moso bamboo |
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| Publication Number | Publication Date |
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| CN114673130A true CN114673130A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210304591.6A Pending CN114673130A (en) | 2022-03-21 | 2022-03-21 | Method and device for reinforcing backfill soil in limited space by grouting moso bamboo |
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| CN111501796A (en) * | 2020-04-30 | 2020-08-07 | 浙江大学城市学院 | High embankment slope stabilizing structure and construction method |
| CN113322958A (en) * | 2021-04-21 | 2021-08-31 | 温州大学 | On-site grouting system and method for reinforcing flocculation sludge through vacuum preloading and grouting |
| CN214993744U (en) * | 2021-04-23 | 2021-12-03 | 神华新朔铁路有限责任公司 | Grouting gun head and grouting construction structure |
-
2022
- 2022-03-21 CN CN202210304591.6A patent/CN114673130A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2391913Y (en) * | 1999-08-11 | 2000-08-16 | 陆根初 | Concrete pile making by usie of bamboo as mould-pipe |
| CN201924340U (en) * | 2010-12-28 | 2011-08-10 | 中南大学 | Grouting tube |
| CN103015426A (en) * | 2012-11-30 | 2013-04-03 | 胡忠志 | Refined grouting bamboo pipe, and machining method and machining cutting ring for refined grouting bamboo pipe |
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| CN113322958A (en) * | 2021-04-21 | 2021-08-31 | 温州大学 | On-site grouting system and method for reinforcing flocculation sludge through vacuum preloading and grouting |
| CN214993744U (en) * | 2021-04-23 | 2021-12-03 | 神华新朔铁路有限责任公司 | Grouting gun head and grouting construction structure |
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