CN115584948A - Drilling and slurry leakage treatment construction method for percussion drill - Google Patents
Drilling and slurry leakage treatment construction method for percussion drill Download PDFInfo
- Publication number
- CN115584948A CN115584948A CN202211313402.8A CN202211313402A CN115584948A CN 115584948 A CN115584948 A CN 115584948A CN 202211313402 A CN202211313402 A CN 202211313402A CN 115584948 A CN115584948 A CN 115584948A
- Authority
- CN
- China
- Prior art keywords
- slurry
- casing
- impact
- backfill material
- backfill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 143
- 238000005553 drilling Methods 0.000 title claims abstract description 69
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000009527 percussion Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 90
- 239000011268 mixed slurry Substances 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 29
- 239000004927 clay Substances 0.000 claims description 26
- 239000004568 cement Substances 0.000 claims description 15
- 239000004575 stone Substances 0.000 claims description 14
- 239000010902 straw Substances 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 13
- 241001330002 Bambuseae Species 0.000 claims description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 13
- 239000011425 bamboo Substances 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 9
- 239000010454 slate Substances 0.000 claims 1
- 239000011499 joint compound Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000007711 solidification Methods 0.000 description 8
- 230000008023 solidification Effects 0.000 description 8
- 238000007596 consolidation process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 235000013547 stew Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a construction method for treating slurry leakage of a percussion drill hole. According to the method, in the impact drilling operation, when slurry leakage occurs in slurry in a protective cylinder, backfill materials are filled into the protective cylinder and subjected to backfill impact, so that the backfill materials form mixed slurry under the impact action of an impact drill, and the mixed slurry can fill the slurry leakage position.
Description
Technical Field
The invention relates to the technical field of pile foundation construction, in particular to a construction method for treating slurry leakage of a percussion drill hole.
Background
In the process of constructing bridges and the like in deep water such as rivers and the like, in order to ensure the stability of bridge construction, a percussion drill is generally used for drilling, and the deep water pile foundation is formed by pouring.
When the drilling operation is impacted under some complex geological conditions, such as permeable pebble beds or sandstone bottom layers and other geological conditions, slurry leakage is easy to occur, the slurry leakage can generate adverse effects on the progress and quality of the drilling operation, and the conditions of hole wall collapse, drill drop and the like are easy to cause due to serious slurry leakage.
Therefore, when the percussion drilling operation is carried out, the leakage position needs to be blocked in time, and the leakage is prevented from causing great negative influence on the safety and the construction efficiency of the deepwater pile foundation construction.
Disclosure of Invention
The invention solves the problem of how to timely stop the leakage of slurry during the drilling operation of the percussion drill.
In order to solve the above problems, the present invention provides a method for treating slurry leakage in a percussion drill hole, comprising:
embedding a pile casing, and performing impact drilling operation in the pile casing;
judging whether the slurry in the protective cylinder leaks or not;
if yes, filling backfill materials into the protective cylinder to a first preset position above a bottom opening of the protective cylinder;
carrying out backfill impact on the backfill material to form mixed slurry, and adjusting the parameters of the mixed slurry to a first preset value;
and after the backfilling impact is finished, standing for a first preset time until the mixed slurry is solidified, and continuing to perform the impact drilling operation.
Compared with the prior art, the invention has the beneficial effects that: in the impact drilling operation, when slurry leakage occurs in slurry in a protective cylinder, the backfill material is filled into the protective cylinder and subjected to backfill impact, so that the backfill material forms mixed slurry under the impact action of an impact drill, and the mixed slurry can fill the slurry leakage position.
Optionally, the backfill materials include a plugging backfill material and a supporting backfill material, and when slurry leakage exists in the slurry in the casing, the construction method for treating slurry leakage of the percussion drill drilling further includes:
acquiring the bottom opening elevation of the pile casing and the depth of the impact drilling operation;
when the depth of the impact drilling operation is larger than the elevation of the bottom opening of the pile casing, acquiring a slurry leakage position of the slurry;
when the distance between the slurry leaking position and the bottom opening of the pile casing is smaller than or equal to a second preset value, filling the support backfill materials into the pile casing to a second preset position below the bottom opening of the pile casing, wherein the second preset value is smaller than or equal to the distance between the second preset position and the bottom opening of the pile casing;
and after the support backfill material is backfilled, filling the leaking stoppage backfill material into the protecting cylinder to the first preset position above the bottom opening of the protecting cylinder.
Optionally, the construction method for treating slurry leakage of the percussion drill drilling further includes:
work as leak thick liquid position with distance between the end opening elevation of protecting a section of thick bamboo is greater than during the numerical value is predetermine to the second, perhaps, works as the degree of depth of impact drilling operation equals during the end opening elevation of protecting a section of thick bamboo, to protect a built-in filling in the leaking stoppage backfill material extremely protect the end opening top of a section of thick bamboo first predetermine the position.
Optionally, the second preset value is 0.5m, the distance between the first preset position and the bottom opening of the casing is 2 to 3m, and the distance between the second preset position and the bottom opening of the casing is 0.5 to 1m.
Optionally, the lost circulation backfill comprises at least one of cement, woven bags filled with stones and straw, and clay, and the support backfill comprises slates.
Optionally, when the lost circulation backfill material comprises the cement and the clay, the volume ratio of the cement to the clay is greater than or equal to 1;
when the plugging backfill material comprises the woven bag and the clay, the volume ratio of the woven bag to the clay is 1;
wherein the volume ratio of the stone blocks to the straws in the woven bag is 1.
Optionally, the determining whether slurry in the casing leaks specifically includes:
observing whether the liquid level of the slurry is reduced;
if so, observing whether the liquid level descending height of the slurry is a third preset value within second preset time, wherein the second preset time is 30min, and the third preset value is 1-3 m;
and if so, determining that the slurry in the casing leaks.
Optionally, the parameters of the mixed slurry include a specific gravity and a viscosity, the first preset value of the specific gravity is 1.3 to 1.5, the first preset value of the viscosity is 25 to 30pa.s, and a stroke of the backfill impact is 0.5 to 1.5m.
Optionally, when the backfill impact is performed on the backfill material, the construction method for treating slurry leakage of the percussion drill drilling further includes:
observing the liquid level of the slurry in the casing during the backfilling impact;
and when the liquid level of the slurry drops, replenishing the slurry into the protective sleeve.
Optionally, the first preset time is 24 to 36 hours.
Drawings
FIG. 1 is a flow chart of a construction method for treating slurry leakage of a percussion drill hole in the embodiment of the invention;
FIG. 2 is a schematic view of the impact operation of the impact drilling, slurry leakage and plugging construction in one embodiment of the present invention;
FIG. 3 is a schematic view of drilling hole slurry leakage during drilling hole slurry leakage plugging construction of the percussion drill according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating backfill plugging in the slurry leakage plugging construction of the percussion drill according to an embodiment of the present invention;
FIG. 5 is a schematic view of the impact operation of the slurry leakage stopping construction of the percussion drill according to another embodiment of the present invention;
FIG. 6 is a schematic view of drilling hole slurry leakage during drilling hole slurry leakage plugging construction of the percussion drill according to another embodiment of the present invention;
FIG. 7 is a schematic illustration of backfill plugging in a percussion drilling fluid leaking plugging construction according to another embodiment of the present invention;
FIG. 8 is a schematic view of drilling hole slurry leakage during drilling hole slurry leakage plugging construction of the percussion drill according to another embodiment of the present invention;
FIG. 9 is a schematic view of backfill plugging during a percussion drilling slurry leakage plugging operation according to another embodiment of the present invention.
Description of reference numerals:
1-protecting the cylinder; 2-backfilling the materials; 21-plugging backfill materials; 22-supporting backfill materials; 3-pebble layer; 4-strongly weathered formations; 5-water line; 6-slurry level; 7-slurry leakage position; 8-holes.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the coordinate system XY provided herein, the forward direction of the X axis represents the right direction, the backward direction of the X axis represents the left direction, the forward direction of the Y axis represents the upper direction, and the backward direction of the Y axis represents the lower direction. Also, it is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
In order to solve the above problem, an embodiment of the present invention provides a method for treating slurry leakage during drilling of a percussion drill, including: embedding a pile casing 1, and performing impact drilling operation in the pile casing 1; judging whether the slurry in the casing 1 leaks or not; if yes, filling backfill materials 2 into the protective cylinder 1 to a first preset position above the bottom opening of the protective cylinder 1; carrying out backfill impact on the backfill material 2 to form mixed slurry, and adjusting the parameters of the mixed slurry to a first preset value; and after the backfilling impact is finished, standing for a first preset time until the mixed slurry is solidified, and continuing to perform impact drilling operation.
In the embodiment, as shown in S1 to S5 in fig. 1 and fig. 2 to 9, in the deep water pile foundation construction operation, a casing 1 is buried in a river bed, so as to facilitate the impact drilling operation on the bottom layer on the river bed in the casing 1, wherein the impact drill performs the drilling operation on the stratum such as a pebble layer 3, a hole 8 is formed in the casing 1, the impact drill gradually moves downwards along with the drilling operation in the drilling process, when a drill bit of the impact drill exceeds the casing 1, the side wall of the drill hole loses the protection of the casing 1, due to the structure of the stratum and vibration generated during the impact drilling, the mud skin protection wall formed by drilling is easily damaged, and the mud leakage phenomenon is easily generated, particularly in the pebble layer, therefore, in the impact drilling operation, whether the mud leakage phenomenon exists in the casing 1 needs to be frequently checked and judged, when the mud leakage phenomenon occurs, the drilling operation is stopped, the casing 1 is filled with the material 2, the height of the material 2 is filled to a first preset position above the bottom opening of the casing 1, namely, the part of the casing 2 is located in the first preset position, the casing 2, the mixed material 2 is conveniently filled, the backfill material 2, and the backfill material can be filled to the backfill material, so as to facilitate the backfill 2, and the backfill material to form a backfill parameter after the impact drilling operation, and the backfill is performed, and the backfill process, so that the backfill can be adjusted, and the backfill of the backfill material 2, and the backfill can be performed on the mixed material, and the backfill after the impact drill hole, and the impact drill hole, so as to facilitate the backfill.
Like this, after backfill impact is accomplished, mix the mud and stew first preset time and make it can fill and leak the thick liquid gap, and consolidate with the stratum, leak thick liquid to the appearance and carry out in time shutoff, and the mixed mud of consolidation can form the dado at 8 inner walls in the hole, guarantee the structural stability of hole 8, mix the mud consolidation back, can continue to carry out drilling and strike the operation, the completion is to the drilling in stratum, at this in-process, the dado that mixed mud formed can avoid the hole 8 the condition that the pore wall collapses to appear, the stability of percussion drill drilling operation has further been guaranteed, guarantee the progress and the quality of drilling operation.
Optionally, the backfill material 2 comprises a plugging backfill material 21 and a supporting backfill material 22, and when slurry in the casing 1 leaks, the construction method for treating slurry leakage of the percussion drilling further comprises the following steps: acquiring the bottom opening elevation of the pile casing 1 and the depth of impact drilling operation; when the depth of the impact drilling operation is larger than the elevation of the bottom opening of the pile casing 1, a slurry leakage position 7 of slurry is obtained; when the distance between the slurry leakage position 7 and the bottom opening of the pile casing 1 is smaller than or equal to a second preset value, filling a support backfill material 22 into the pile casing 1 to a second preset position below the bottom opening of the pile casing 1, wherein the second preset value is smaller than or equal to the distance between the second preset position and the bottom opening of the pile casing; after the backfill of the support backfill material 22 is completed, the plugging backfill material 21 is filled into the pile casing 1 to a first preset position above the bottom opening of the pile casing 1.
When slurry leaks from slurry in the casing 1, the casing 1 is filled with the backfill material 2, sometimes the position of a gap with slurry leakage in a stratum is deep, and in order to guarantee timely leakage stoppage of the slurry leakage and improve convenience of leakage stoppage, in the embodiment, as shown in fig. 2 to 9, the leakage stoppage backfill material 21 and the support backfill material 22 are arranged, wherein when the position with slurry leakage is short from the bottom opening of the casing 1 and the depth of the hole 8 is deep, the support backfill material 22 can be filled into the casing 1 to lift the bottom surface of the hole 8 upwards, and then the leakage stoppage backfill material 21 is filled to block the gap with slurry leakage, the support backfill material 22 has wide sources, a tight filling state is not required to be kept, gaps can exist among the materials only by keeping certain support strength, and can be obtained in time at a construction site, the manufacturing cost is low, the leakage stoppage material 21 needs to be purchased and is reserved during impact operation and has high manufacturing cost.
In this embodiment, in order to conveniently match the plugging backfill material 21 and the supporting backfill material 22, when slurry leakage occurs in slurry in the pile casing 1, the slurry leakage position 7 is judged, the approximate region of the slurry leakage position 7 is judged through the bottom opening elevation of the pile casing 1 and the depth of impact operation, and when the depth of the impact operation is smaller than the bottom opening elevation of the pile casing 1, slurry leakage does not occur in the hole 8 due to the protection operation of the pile casing 1.
Therefore, as shown in fig. 5, 8 and 9, when slurry in the casing 1 leaks, the elevation of the bottom opening of the casing 1 and the depth of the impact drilling operation are obtained, when the depth of the impact drilling operation is greater than the elevation of the bottom opening of the casing 1, at this time, the slurry leaking position 7 is obtained, whether the distance between the slurry leaking position 7 and the bottom opening of the casing 1 is smaller than or equal to a second preset value is judged, that is, whether the distance between the slurry leaking position 7 and the bottom opening of the casing 1 is smaller than or equal to the second preset value, that is, whether the distance between the slurry leaking position 7 and the bottom opening of the casing 1 is smaller than the bottom opening of the casing 1, at this time, the casing 1 is filled with the support backfill material 22, when the casing is filled to the second preset position below the bottom opening of the casing 1, the support backfill material 21 is filled to the first preset position above the bottom opening of the casing 1, and the distance between the second preset position and the bottom opening of the casing 1 is smaller than the second preset value, so that the support material 22 is lower than the top of the slurry leaking position 7, and the backfill material can guarantee the backfill material to backfill the backfill material to plug the backfill the plugging position 21.
Note that, in the present embodiment, as shown in fig. 8 and 9, the slurry leakage position 7 is located at the bottom opening of the casing 1. In other embodiments of the present invention, the slurry leakage position 7 may be located at other positions, and it is only necessary that the slurry leakage position 7 is closer to the bottom of the casing 1 than to the bottom of the hole 8.
It should be noted that, in this embodiment, when the slurry leakage position 7 is obtained, the estimation may be performed through the construction experience of the constructor, or the estimation may be performed through the situation that occurs when the impact drilling operation is performed in other areas of the whole construction site, or the detection may be performed through a geological detection device such as an exploration radar.
Optionally, the construction method for treating the slurry leakage of the percussion drill drilling further comprises the following steps: and when the distance between the slurry leakage position 7 and the bottom opening elevation of the pile casing 1 is larger than a second preset numerical value or the depth of the impact drilling operation is equal to the bottom opening elevation of the pile casing 1, filling the pile leakage backfill materials 21 into the pile casing 1 to a first preset position above the bottom opening of the pile casing 1.
When the distance between the slurry leakage position 7 and the bottom opening of the pile casing 1 is close and the distance between the slurry leakage position 7 and the bottom opening of the hole 8 is far, the backfill material 22 and the plugging backfill material 21 are required to be supported to be matched for filling the interior of the pile casing 1, and when the distance between the slurry leakage position 7 and the bottom opening of the pile casing 1 is greater than or equal to the distance between the slurry leakage position 7 and the bottom opening of the hole 8, the slurry leakage position 7 is required to be plugged only by using the plugging backfill material 21 for filling the interior of the pile casing 1.
Therefore, as shown in fig. 2 to 4, when the depth of the impact drilling operation is equal to the bottom opening elevation of the casing 1, the slurry leakage position 7 only possibly exists at the bottom opening of the casing 1 due to the protection of the casing 1 on the side wall of the hole 8, at this time, the slurry leakage position 7 is lower, and the slurry leakage position 7 can be stopped only by filling the slurry leakage stopping backfill material 21 into the casing 1, performing backfill impact, and standing until the mixed slurry is solidified;
as shown in fig. 5 to 7, when the degree of depth of impact drilling operation is greater than the end opening elevation of a protecting section of thick bamboo 1, at this moment, acquire leak thick liquid position 7, judge whether the distance between leak thick liquid position 7 and the end opening of a protecting section of thick bamboo 1 is greater than the second and predetermine numerical value, leak thick liquid position 7 promptly for protecting section of thick bamboo 1 end opening whether than for hole 8 the bottom distance far away, if be greater than the second and predetermine numerical value, then leak thick liquid position 7 corresponding end opening of protecting section of thick bamboo 1 far away, owing to there is the clearance between the backfill material 22 of support, at this moment, the same with the condition when the degree of depth of impact drilling operation equals the end opening elevation of a protecting section of thick bamboo 1, only need directly fill leak stopping material 21 to the first position of predetermineeing above the end opening of a protecting section of thick bamboo 1, can guarantee that leak stopping backfill material 21 can carry out the shutoff to leak thick liquid position 7.
It should be noted that, in this embodiment, as shown in fig. 6 and 7, the slurry leakage position 7 is located on the bottom side of the hole 8, i.e. at the boundary between the pebble layer 3 and the strongly weathered stratum 4. In other embodiments of the present invention, the slurry leakage position 7 may be located in other positions, and it only needs to be satisfied that the distance between the slurry leakage position 7 and the bottom opening of the casing 1 is longer than the distance between the slurry leakage position 7 and the bottom opening of the hole 8.
Optionally, the second preset value is 0.5m, the distance between the first preset position and the bottom opening of the casing 1 is 2 to 3m, and the distance between the second preset position and the bottom opening of the casing 1 is 0.5 to 1m.
In the embodiment, in order to ensure accurate plugging of the slurry leaking position 7 and complete the plugging operation, the second preset value is set to be 0.5m, and the distance between the second preset position and the bottom opening of the casing 1 is set to be 0.5-1 m, so that the effective support of the support backfill material 22 on the plugging backfill material 21 is met, the plugging backfill material 21 plugs the plugging position, and the waste of the plugging backfill material 21 is avoided.
In addition, the distance between the first preset position and the bottom opening of the protective cylinder 1 is set to be 2-3 m, so that the height of the leaking stoppage backfill material 21 in the protective cylinder 1 is guaranteed, sufficient mixed slurry is obtained when backfill impact is conveniently carried out, a buffering effect is achieved, and influence on the stratum caused by backfill impact is avoided.
Optionally, the lost circulation backfill 21 comprises at least one of cement, woven bags filled with stones and straw, and clay, and the support backfill 22 comprises slates.
In order to guarantee the effective shutoff of leaking stoppage backfill material 21 to leaking thick liquid position 7, in this embodiment, set up leaking stoppage backfill material 21 into cement, at least one kind in braided bag and the clay, wherein, the braided bag intussuseption is filled with stone and straw, cement has higher structural strength after the solidification, can play the guard action to the stratum, the braided bag intussuseption is filled with stone and straw, the structural strength after the stone can guarantee to fix, the straw can increase the pulling force and the whole cohesive force of the mixed mud after the solidification, the toughness of mud dado is improved, and the clay has higher plasticity, can form the dado of skeleton compact structure, of course, cement, clay and braided bag are two pairwise between the cooperation, can further promote the structural strength after the mixed mud solidifies, the pulling force, whole cohesive force, toughness and the closely knit nature of structure, the effectual mixed mud of having guaranteed, stability when carrying out the impact operation once more, avoid appearing secondary leaking thick liquid.
In addition, support backfill material 22 and set up to the slabstone, the slabstone is the material that the job site acquireed easily, and the cost is lower, and the slabstone possesses certain structural strength, can satisfy the effective support to leaking stoppage backfill material 21.
Optionally, when the plugging backfill material 21 comprises cement and clay, the volume ratio of the cement to the clay is greater than or equal to 1; when the plugging backfill material 21 comprises a woven bag and clay, the volume ratio of the woven bag to the clay is 1; wherein the volume ratio of the stones to the straws in the woven bag is 1.
In this embodiment, in order to guarantee leaking stoppage backfill material 21's performance, when leaking stoppage backfill material 21 includes cement and clay, set up the volume ratio of cement and clay to be more than or equal to 1, like this, cement and clay can form the clay, can make mixed mud form skeleton compact structure's dado after the consolidation, promote the support to the stratum, avoid appearing the secondary and leak the thick liquid.
In addition, when leaking stoppage backfill material 21 includes braided bag and clay, set up the volume ratio of braided bag and clay to 1, and set up the volume ratio of stone and straw in the braided bag to 1, the diameter of stone sets up to 10 ~ 20cm, the straw sets up to dry straw, like this, braided bag and clay are backfilled and are strikeed the back, inlay each other through the stone and crowd, concretise the back at mixed mud, clay and straw can form the higher closely knit dado of toughness, possess higher pulling force and whole adhesion, promote the support to the stratum, avoid appearing the secondary and leak thick liquid. The diameter of the stone block is set to be 10-20 cm, so that the woven bag is conveniently filled into the protective cylinder 1 after being filled into the woven bag, the stone block is conveniently crushed into mixed slurry during backfilling impact, and the toughness of the mixed slurry after solidification can be further improved by using dry straws.
Optionally, judging whether slurry in the casing 1 leaks or not specifically includes: observing whether the liquid level of the slurry is reduced; if so, observing whether the liquid level descending height of the slurry is a third preset value within a second preset time, wherein the second preset time is 30min, and the third preset value is 1-3 m; if yes, determining that slurry leakage exists in the slurry in the casing 1.
In this embodiment, in order to accurately know whether slurry leaks from the slurry in the casing 1, as shown in fig. 2 to 9, it is required to first observe whether the slurry level 6 is lowered, that is, the slurry level 6 is generally located above the water level line 5, and when the slurry level 6 is lowered and gradually tends to be as high as the water level line 5, it can be determined that slurry leaks from the slurry in the casing 1.
Specifically, in the present embodiment, the difference between the initial height of the slurry level 6 and the water level line 5 is a third preset value, which is generally 1-3 m, and if the slurry level 6 rapidly drops by 1-3 m within a second preset time, i.e. 30min, it can be determined that slurry leakage occurs in the slurry in the casing 1.
Optionally, the parameters of the mixed slurry include a specific gravity and a viscosity, the first predetermined value of the specific gravity is 1.3 to 1.5, the first predetermined value of the viscosity is 25 to 30pa.s, and the stroke of the backfill impact is 0.5 to 1.5m.
In this embodiment, the parameters of the mixed slurry include a specific gravity and a viscosity, wherein the specific gravity of the slurry, i.e., the slurry density, reaches a first predetermined value such that the strength of the mixed slurry after being consolidated meets the requirement, and the viscosity of the slurry reaches the first predetermined value such that the toughness of the mixed slurry after being consolidated meets the requirement of impact. Specifically, the first preset value of specific gravity is set to 1.3 to 1.5, and the first preset value of viscosity is set to 25 to 30pa.s.
In the embodiment, the stroke of the backfill impact is set to be 0.5-1.5 m, and the impact drill performs the backfill impact with a small stroke under the stroke, so that the crushing requirement on the backfill material 2 is met, the parameter of the mixed slurry is adjusted to reach a first preset value, the mixed slurry meeting the requirement is formed, and the adverse effect of the backfill impact on the stability of the casing 1 and the hole 8 can be avoided.
Optionally, this percussion drill drilling leaks thick liquid leaking stoppage still includes: in the process of backfilling impact, observing the liquid level of the slurry in the protective cylinder 1; when the liquid level of the slurry drops, the slurry is supplemented into the casing 1.
As shown in fig. 2 to 9, in order to make the slurry liquid level 6 higher than the water level line 5 when the mixed slurry is solidified and the impact operation is continued, the relative position between the slurry liquid level 6 and the water level line 5 is obtained to conveniently judge whether the secondary slurry leakage occurs in the impact operation, so that in this embodiment, when the backfill impact is performed, when the slurry liquid level 6 in the casing 1 drops, the slurry is timely replenished into the casing 1, and the excessive slurry is prevented from being lost through the slurry leakage position 7.
Optionally, the first preset time is 24 to 36 hours.
In this embodiment, in order to make the performance of the mixed slurry after solidification meet the requirement of the impact operation, after the mixed slurry is formed, still need to stand for the first preset time, the mixed slurry convenient for solidification, of course, according to the requirement of the impact operation, the shortest time of standing needs to be set, namely 24 hours, through standing for 24 hours, the mixed slurry after solidification can meet the requirement of the impact operation, when the construction period is short, the operation efficiency of slurry leakage and leakage stoppage can be improved, the longest standing time is also set, namely 36 hours, through standing for 36 hours, the mixed slurry after solidification can meet the requirement of the impact operation, and the performance of the mixed slurry after solidification is more excellent, the stability when the impact operation is carried out is better, the efficiency of the impact operation can be relatively improved, when the construction period is longer, the operation quality and the operation efficiency of the impact operation can be improved.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications are intended to fall within the scope of the invention.
Claims (10)
1. A method for treating slurry leakage of a percussion drill hole is characterized by comprising the following steps:
embedding a pile casing (1), and performing impact drilling operation in the pile casing (1);
judging whether slurry in the casing (1) leaks or not;
if yes, filling a backfill material (2) into the protective cylinder (1) to a first preset position above a bottom opening of the protective cylinder (1);
carrying out backfill impact on the backfill material (2) to form mixed slurry, and adjusting the parameters of the mixed slurry to a first preset value;
and after the backfilling impact is finished, standing for a first preset time until the mixed slurry is solidified, and continuing to perform the impact drilling operation.
2. The percussion drilling and slurry leakage disposal construction method according to claim 1, wherein the backfill material (2) comprises a leakage stoppage backfill material (21) and a support backfill material (22), and when slurry leakage exists in the slurry in the casing (1), the percussion drilling and slurry leakage disposal construction method further comprises:
acquiring the bottom opening elevation of the pile casing (1) and the depth of the impact drilling operation;
when the depth of the impact drilling operation is larger than the bottom opening elevation of the casing (1), acquiring the slurry leakage position of the slurry;
when the distance between the slurry leakage position and the bottom opening of the pile casing (1) is smaller than or equal to a second preset value, filling the pile casing (1) with the support backfill material (22) to a second preset position below the bottom opening of the pile casing (1), wherein the second preset value is smaller than or equal to the distance between the second preset position and the bottom opening of the pile casing (1);
and after the support backfill material (22) is backfilled, filling the leaking stoppage backfill material (21) into the pile casing (1) to the first preset position above the bottom opening of the pile casing (1).
3. The percussion drilling and slurry leakage disposal construction method according to claim 2, further comprising:
when leak thick liquid position with distance between the end opening elevation of protecting a section of thick bamboo (1) is greater than during the numerical value is predetermine to the second, perhaps, works as the degree of depth of impact drilling operation equals when protecting the end opening elevation of a section of thick bamboo (1), to protect a section of thick bamboo (1) intussuseption leaking stoppage backfill material (21) extremely protect the end opening top of a section of thick bamboo (1) first predetermine the position.
4. The percussion drilling and slurry leakage disposal construction method according to claim 2, wherein the second preset value is 0.5m, the distance between the first preset position and the bottom opening of the casing (1) is 2-3 m, and the distance between the second preset position and the bottom opening of the casing (1) is 0.5-1 m.
5. The percussion drill hole slurry leakage disposal construction method according to claim 2, wherein the leakage plugging backfill material (21) comprises at least one of cement, woven bag and clay, the woven bag is filled with stone and straw, and the supporting backfill material (22) comprises slate.
6. The percussion drilling and slurry leakage disposal construction method according to claim 5, wherein when the leakage stoppage backfill material (21) comprises the cement and the clay, the volume ratio of the cement to the clay is greater than or equal to 1;
when the leaking stoppage backfill material (21) comprises the woven bag and the clay, the volume ratio of the woven bag to the clay is 1;
wherein the volume ratio of the stone blocks to the straws in the woven bag is 1.
7. The percussion drilling and slurry leakage disposal construction method according to any one of claims 1 to 6, wherein the judging whether slurry in the casing (1) leaks or not specifically comprises:
observing whether the liquid level of the slurry is reduced;
if so, observing whether the liquid level descending height of the slurry is a third preset value within second preset time, wherein the second preset time is 30min, and the third preset value is 1-3 m;
if yes, determining that slurry leakage exists in the slurry in the casing (1).
8. The impact drill, drilling and slurry leakage disposal construction method according to claim 1, wherein the parameters of the mixed slurry comprise specific gravity and viscosity, the first preset value of the specific gravity is 1.3-1.5, the first preset value of the viscosity is 25-30Pa.s, and the stroke of backfill impact is 0.5-1.5 m.
9. The percussion drilling and slurry leakage disposal construction method according to claim 1, wherein in performing the backfill impact on the backfill material (2), the percussion drilling and slurry leakage disposal construction method further comprises:
during the backfilling impact, observing the liquid level of the slurry in the casing (1);
when the liquid level of the slurry drops, the slurry is supplemented into the casing (1).
10. The percussion drill drilling and slurry leakage disposal construction method according to claim 1, wherein the first preset time is 24-36 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211313402.8A CN115584948A (en) | 2022-10-25 | 2022-10-25 | Drilling and slurry leakage treatment construction method for percussion drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211313402.8A CN115584948A (en) | 2022-10-25 | 2022-10-25 | Drilling and slurry leakage treatment construction method for percussion drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115584948A true CN115584948A (en) | 2023-01-10 |
Family
ID=84782303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211313402.8A Pending CN115584948A (en) | 2022-10-25 | 2022-10-25 | Drilling and slurry leakage treatment construction method for percussion drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115584948A (en) |
-
2022
- 2022-10-25 CN CN202211313402.8A patent/CN115584948A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110230309B (en) | Karst area bridge karst cave pile foundation construction method | |
| CN108560541B (en) | Rotary drilling full-casing follow-up rock face drilling construction method | |
| CN107905728B (en) | Rock-fill area drilling construction method | |
| CN104278667A (en) | Underground karst cave filling treatment method | |
| CN113174943B (en) | Rotary drilling type sand pumping pore-forming side wall high-pressure grouting device and construction method | |
| CN108086296B (en) | Dynamic and static combined grouting foundation reinforcing construction method | |
| CN104831705A (en) | Ultra-deep hole grouting method during underground excavation of tunnel | |
| CN111074899A (en) | Grouting method for karst caves with different filling types | |
| CN104746505A (en) | Method for treating miscellaneous fill foundation combing dynamic consolidation and compaction grouting | |
| CN108086342A (en) | The construction method of karst strata pile foundation | |
| CN112227401A (en) | Method for constructing bearing platform by filling stones in underwater stone abrupt slope area | |
| CN104711973A (en) | Construction method for small-diameter pile composite foundation | |
| CN112962586A (en) | Cast-in-situ bored pile construction process suitable for rock stratum area | |
| CN109667276A (en) | A kind of karst cave treatment and tracking grouting construction method | |
| CN108049397A (en) | The construction method of Karst Geological Landscape drilled pile | |
| Hou et al. | Experimental study of the bearing characteristics of a novel energy-saving and environmentally friendly pile: drilling with prestressed concrete pipe cased piles | |
| CN106013155A (en) | Method for filling up covering layer and processing drilling slurry leakage by grouting consolidation | |
| CN104196488B (en) | Underwater exploration hole hole-sealing technology | |
| CN111042121B (en) | Construction method of bored backfill end pile foundation | |
| CN106869153B (en) | A kind of method of the quick soft soil foundation treatment of well-points dewatering | |
| CN115584948A (en) | Drilling and slurry leakage treatment construction method for percussion drill | |
| CN103806444A (en) | Soft soil layer rotary excavating pile construction method | |
| CN103556555B (en) | Reinforce the construction method of the nail shape drilled pile composite foundation structure of embankment widening | |
| CN110306529A (en) | A kind of method that bridge pile foundation solution cavity layering throwing blocks | |
| CN214832589U (en) | Combined pile structure for treating insufficient bearing capacity of deep foundation pit construction pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |