CN111720136B - Method for processing excavation blind area of rectangular pipe jacking machine - Google Patents
Method for processing excavation blind area of rectangular pipe jacking machine Download PDFInfo
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- CN111720136B CN111720136B CN202010602452.2A CN202010602452A CN111720136B CN 111720136 B CN111720136 B CN 111720136B CN 202010602452 A CN202010602452 A CN 202010602452A CN 111720136 B CN111720136 B CN 111720136B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/03—Driving non-circular tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Abstract
The invention provides a method for processing an excavation blind area of a rectangular push bench, which comprises the steps of predetermining the position of the excavation blind area on a surface to be excavated according to a cutter head layout diagram of the rectangular push bench, drilling in the excavation blind area, and controlling the rectangular push bench to start construction. By drilling in the excavation blind area, the soil body in the excavation blind area can be effectively prevented and broken, and a foundation is laid for the subsequent construction of the rectangular push bench. The pre-drilling destroys the soil body on the excavation blind area, the mobility of the soil body can be improved, after the drilling operation is finished, the rectangular push bench can be made to fall off only by slightly disturbing the soil body of the excavation blind area, the interference of the soil body of the excavation blind area on the construction of the rectangular push bench is avoided, the tunneling resistance of the rectangular push bench is reduced, the burden of a cutter head is effectively reduced, and the construction of the rectangular push bench is smoother. In addition, soil on the excavation blind area is damaged in advance, the machine head posture of the rectangular push bench can be prevented from being transmitted and deviated, and the tunneling track of the rectangular push bench after construction is more accurate.
Description
Technical Field
The invention relates to the technical field of pipe jacking machine construction, in particular to a method for processing a rectangular pipe jacking machine excavation blind area.
Background
Rectangular pipe jacking machines are often used in urban subway entrances and exits, street crossing channels and the like. Compared with a circular section, the effective use area of the rectangular section is increased by more than 20%, the space can be more effectively utilized, under the same space requirement, the earth covering of the tunnel with the rectangular section is shallower, the rectangular push bench is usually designed into a form of large cutter discs and small cutter discs which are staggered due to the section shape of the rectangular push bench, gaps can exist between adjacent cutter discs and between the cutter discs and the shield body due to the structural design, the gaps are called excavation blind areas, the rectangular push bench with the excavation blind areas adopts a crank rocker type floating cutter disc structural design in the related art, but compared with the rectangular push bench with the common shape, the scheme has the problems that the soil body disturbance is large, the stress of a central rotating shaft is large, the checking is difficult, and the like, and the floating cutter discs are easy to damage and difficult to maintain in the construction process.
The rectangular push bench is more and more emphasized by students due to high section utilization rate, but the problem of excavation blind areas of the rectangular push bench is not effectively solved all the time. In the tunneling process, the soil body of the excavated blind area cannot be crushed by a cutter head of the rectangular pipe jacking machine, so that the advancing resistance of the tunneling machine can be increased, and meanwhile, the machine head posture of the rectangular pipe jacking machine can be deviated due to the unbroken soil body.
The excavation dead zone brings many negative effects to the construction of the rectangular push bench, and no good solution is provided in the related technology. Therefore, the processing technology of the rectangular pipe jacking machine excavation dead zone is significant.
Disclosure of Invention
The present invention has been made to solve at least one of the problems occurring in the prior art or the related art.
Therefore, one aspect of the invention is to provide a method for processing the excavation blind area of the rectangular push bench.
In view of this, according to an aspect of the present invention, a method for processing a dead zone excavated by a rectangular push bench is provided, including: the method comprises the steps of determining the position of an excavation blind area on a surface to be excavated in advance according to a cutter head layout of a rectangular pipe jacking machine; drilling in the excavation blind area; and controlling the rectangular pipe jacking machine to start construction.
According to the method for processing the excavation blind areas of the rectangular push bench, before the rectangular push bench is constructed, the positions of the excavation blind areas on the surface to be excavated are determined in advance according to the cutter head layout drawing of the rectangular push bench, and drilling is carried out in the excavation blind areas, so that soil bodies of the excavation blind areas can be effectively prevented and broken, and a foundation is laid for subsequent construction of the rectangular push bench. The soil body on the excavation blind area is damaged through pre-drilling, the mobility of the soil body can be improved, after the drilling operation is finished, the construction of the rectangular push bench is carried out, at the moment, the rectangular push bench only needs to slightly disturb the soil body of the excavation blind area to enable the soil body to fall off, the interference of the soil body of the excavation blind area on the construction of the rectangular push bench is avoided, the tunneling resistance of the rectangular push bench is reduced, the burden of a cutter head is effectively reduced, and the construction of the rectangular push bench is smoother. In addition, soil on the excavation blind area is damaged in advance, the machine head posture of the rectangular push bench can be prevented from being transmitted and deviated, and the tunneling track of the rectangular push bench after construction is more accurate. The method for processing the rectangular pipe jacking machine excavation dead zone is simple and easy to implement, and effectively solves the problem of the rectangular pipe jacking machine excavation dead zone.
Specifically, when the step of drilling is carried out in the excavation blind area, the diameter in hole can be adjusted as required, and when the diameter in hole is designed to be smaller, drilling efficiency can be improved, and the construction difficulty is reduced.
The processing method for the rectangular pipe jacking machine excavation dead zone is suitable for various geology, and has more obvious effect in hard rock geology. In addition, the processing method for the rectangular pipe jacking machine excavation dead zone provided by the invention has no limitation on drilling tools when the excavation dead zone is drilled, and the appropriate drilling tools can be selected according to the specific construction environment.
In addition, according to the processing method for the rectangular pipe jacking machine excavation dead zone in the technical scheme provided by the invention, the following additional technical characteristics can be realized:
in the above technical solution, the method for processing the excavation blind area of the rectangular pipe jacking machine further includes: and when the crushed soil body after drilling is hardened again, the step of drilling the excavation blind area in the receiving chamber is executed again.
In the technical scheme, when the soil body broken due to drilling on the excavation blind area is hardened again in the construction process of the rectangular push bench, the step of drilling in the excavation blind area can be executed again in the receiving chamber, so that the soil body of the excavation blind area is broken again, the interference of the soil body of the excavation blind area on the construction of the rectangular push bench is avoided, the tunneling resistance of the rectangular push bench is reduced, and the tunneling track of the rectangular push bench is more accurate after the construction is started.
In any of the above technical solutions, the step of drilling in the excavation dead zone is performed in the receiving chamber and/or the originating chamber.
In the technical scheme, the step of drilling in the excavation blind area can be executed in the receiving chamber, the excavation blind area is drilled in the receiving chamber, the construction of the rectangular push bench is not influenced, the drilling work can be carried out at any time, and the construction period of the rectangular push bench is further shortened.
Or, the step of drilling the excavation blind area can also be executed in the starting chamber, and the drilling of the excavation blind area in the starting chamber is more targeted. Specifically, more targeted drilling can be performed according to the condition of the surface to be excavated, and the construction efficiency is improved.
In addition, the step of drilling in the excavation blind area can be simultaneously executed in the receiving chamber and the starting chamber, on one hand, the excavation blind area is drilled in the receiving chamber, the construction of the rectangular pipe jacking machine is not influenced, on the other hand, in the starting chamber, the more targeted drilling is carried out according to the condition of the surface to be excavated, and the construction efficiency is improved.
In any of the above technical solutions, the starting chamber is drilled in the excavated blind area based on the retractable function of the rectangular pipe jacking machine.
In the technical scheme, when the receiving chamber is not available in the construction working condition or the receiving chamber is inconvenient to carry out the step of drilling in the excavation blind area in the construction process, the rectangular pipe jacking machine has a retractable function, and the step of drilling in the excavation blind area can be carried out in the starting chamber according to the condition of the surface to be excavated.
In any of the above technical solutions, the step of predetermining the position of the excavation blind area on the surface to be excavated according to the cutter head layout drawing of the rectangular pipe push bench comprises: and drawing a cutter head layout of the rectangular pipe jacking machine on a surface to be excavated.
In the technical scheme, the step of predetermining the position of the excavation blind area on the surface to be excavated according to the cutter head layout of the rectangular push bench is to draw the cutter head layout of the rectangular push bench on the surface to be excavated. The cutter head layout drawing of the rectangular push bench is drawn on a surface to be excavated, the clearance position between the cutter head and the clearance position between the cutter head and the shield body can be accurately determined, namely, the position of an excavation blind area is accurately determined, and then the excavation blind area is drilled, so that the soil body on the excavation blind area is damaged in advance, the interference of the soil body of the excavation blind area on the construction of the rectangular push bench is avoided, the excavation resistance of the rectangular push bench is reduced, and the excavation track of the rectangular push bench is more accurate after the construction is started.
In addition, other mapping methods can be adopted to determine the position of the dead zone on the surface to be excavated.
In any of the above technical solutions, the method for processing the excavation blind area of the rectangular push bench further comprises: and when the drilling step is carried out in the excavation blind area and the broken soil body is hardened again, the step of drilling in the excavation blind area is carried out again in the receiving chamber.
In the technical scheme, in the construction process of the rectangular pipe jacking machine, after the drilling step is carried out on the excavation blind area, when soil broken due to drilling on the excavation blind area is hardened again, the step of drilling in the excavation blind area can be carried out again in the receiving chamber, so that the soil of the excavation blind area is broken again, the interference of the soil of the excavation blind area on the construction of the rectangular pipe jacking machine is avoided, the tunneling resistance of the rectangular pipe jacking machine is reduced, and the tunneling track of the rectangular pipe jacking machine is more accurate after the construction is started.
In any one of the technical schemes, a horizontal drilling machine is used for drilling holes in the excavation blind areas.
In the technical scheme, the horizontal drilling machine is used for drilling holes in the excavation blind areas, the construction is simple and efficient, and the horizontal drilling machine can be moved in a portable mode, so that the holes are drilled in all positions of the cross section of the surface to be excavated. In addition, the drilling depth of the horizontal drilling machine can reach at least 300 meters, and the hole diameter of the drilled hole can be adjusted according to requirements.
It is understood that various types of horizontal drilling machines are suitable for the solution of the invention.
In any of the above technical solutions, the number of holes to be drilled in the excavation dead zone is plural.
In the technical scheme, the number of holes drilled in the excavation dead zone is multiple. Through drilling a plurality of holes in the excavation blind area, soil bodies at a plurality of positions can be crushed, and the situation that the soil body which is not damaged in a large area appears in the area of the excavation blind area and causes resistance to the subsequent construction of the rectangular push bench is avoided.
In any one of the above technical schemes, when the number of the holes is multiple, the holes are uniformly distributed on the excavation dead zone at intervals.
In this technical scheme, when the quantity of hole is a plurality of, through with a plurality of even interval distribution of hole in the region of excavation blind area for the destruction to the soil body of excavation blind area is more accurate, avoids appearing the undamaged soil body of great area, causes the resistance to the follow-up construction of rectangle push bench.
In any one of the above technical solutions, the number of holes is proportional to the area of the excavation dead zone.
In this technical scheme, through setting up the quantity in hole to be directly proportional with the area of excavation blind area, can realize more perfect the destruction to the soil body of excavation blind area, when the area of excavation blind area is great, can bore relatively many holes at the excavation blind area, can avoid appearing the not destroyed soil body of great area in the region of excavation blind area like this, cause the resistance to the follow-up construction of rectangle push bench.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a flow chart of a method for processing rectangular push bench excavation dead zones in one embodiment of the invention;
FIG. 2 is a flow chart illustrating a method for processing rectangular push bench excavation dead zones in another embodiment of the present invention;
FIG. 3 is a flow chart illustrating a method for processing rectangular push bench excavation dead zones in another embodiment of the present invention;
FIG. 4 is a flow chart illustrating a method for processing rectangular push bench excavation dead zones in another embodiment of the present invention;
FIG. 5 illustrates a schematic view of a surface to be excavated before drilling an excavation blind area, according to an embodiment of the present invention;
FIG. 6 illustrates a schematic view of a surface to be excavated after drilling an excavation blind area, according to an embodiment of the present invention;
fig. 7 shows a schematic diagram of a drilling step performed in a dead zone of a surface to be excavated of the receiving or originating chamber in accordance with an embodiment of the invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 7 is:
100 shields, 200 cutterheads, 300 dead zones, 400 holes, 500 receiving chambers, 600 starting chambers, 700 horizontal drilling machines and 800 surfaces to be excavated.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A method for processing a dead zone of rectangular push bench excavation according to some embodiments of the present invention will be described below with reference to fig. 1 to 7.
Example one
As shown in fig. 1, 5 and 6, the invention provides a method for processing a rectangular pipe jacking machine excavation blind area, which comprises the following steps:
step 100: the method comprises the steps of determining the position of an excavation blind area on a surface to be excavated in advance according to a cutter head layout of a rectangular pipe jacking machine;
step 102: drilling in the excavation blind area;
step 104: and controlling the rectangular pipe jacking machine to start construction.
According to the method for processing the excavation blind area of the rectangular push bench, before the rectangular push bench is constructed, the position of the excavation blind area 300 on the surface 800 to be excavated is determined in advance according to the layout of the cutter head 200 of the rectangular push bench, and the hole 400 is drilled in the excavation blind area 300, so that the soil body of the excavation blind area 300 can be effectively prevented and broken, and a foundation is laid for the subsequent construction of the rectangular push bench. The soil body on the excavation blind area 300 is damaged by pre-drilling 400, the mobility of the soil body can be improved, after the operation of drilling 400 is finished, the construction of the rectangular push bench is carried out, at the moment, the rectangular push bench can be made to fall off only by slightly disturbing the soil body of the excavation blind area 300, the interference of the soil body of the excavation blind area 300 on the construction of the rectangular push bench is avoided, the tunneling resistance of the rectangular push bench is reduced, the burden of the cutter head 200 is effectively reduced, and the construction of the rectangular push bench is smoother. In addition, the soil on the excavation blind area 300 is damaged in advance, and the machine head posture of the rectangular push bench can be prevented from being transmitted and deviated, so that the tunneling track of the rectangular push bench after construction is more accurate. The method for processing the rectangular pipe jacking machine excavation dead zone 300 is simple and easy to implement, and effectively solves the problem of the rectangular pipe jacking machine excavation dead zone 300.
Specifically, when the step of drilling in the excavation blind area is carried out, the diameter of the hole 400 can be adjusted as required, and when the diameter of the hole 400 is designed to be smaller, the efficiency of drilling the hole 400 can be improved, and the construction difficulty is reduced.
The processing method of the rectangular pipe jacking machine excavation dead zone 300 is suitable for various geology, and has a more obvious effect in hard rock geology. In addition, the processing method for the rectangular pipe jacking machine excavation dead zone provided by the invention has no limitation on drilling tools when the excavation dead zone is drilled, and the appropriate drilling tools can be selected according to the specific construction environment.
Further, the processing method of the rectangular pipe jacking machine excavation dead zone 300 further comprises the following steps: when the crushed soil mass after the drilling 400 is hardened again, the step of drilling 400 in the excavated blind area 300 is performed again in the receiving chamber 500.
As shown in fig. 2, in a specific embodiment, the method for processing the dead zone excavated by the rectangular pipe jacking machine includes:
step 200: the method comprises the steps of determining the position of an excavation blind area on a surface to be excavated in advance according to a cutter head layout diagram of a rectangular pipe jacking machine;
step 202: drilling in the excavation blind area;
step 204: controlling the rectangular pipe jacking machine to start construction;
step 206: and when the crushed soil body after drilling is hardened again, the step of drilling the excavation blind area in the receiving chamber is executed again.
In the construction process of the rectangular pipe jacking machine, when soil broken due to the drilling 400 on the excavation blind area 300 is hardened again, the step of drilling 400 on the excavation blind area 300 can be executed again in the receiving chamber 500, so that the soil of the excavation blind area 300 is broken again, the interference of the soil of the excavation blind area 300 on the construction of the rectangular pipe jacking machine is avoided, the tunneling resistance of the rectangular pipe jacking machine is reduced, and the tunneling track of the rectangular pipe jacking machine is more accurate after the construction is started.
Example two
As shown in fig. 7, the drilling 400 in the excavation dead zone 300 is performed in the receiving chamber 500 and/or the originating chamber 600, in accordance with any of the embodiments described above. Specifically, the step of drilling 400 in the excavation blind area 300 can be executed in the receiving chamber 500, and the excavation blind area 300 is drilled 400 in the receiving chamber 500, so that the construction of the rectangular pipe jacking machine is not influenced, the drilling 400 can be carried out at any time, and the construction period of the rectangular pipe jacking machine is shortened.
Alternatively, the step of drilling 400 in the excavated blind area 300 may be performed in the originating chamber 600, and the step of drilling 400 in the excavated blind area 300 in the originating chamber 600 may be more targeted. Specifically, more targeted drilling 400 can be performed according to the condition of the surface 800 to be excavated, so that the construction efficiency is improved.
In addition, the step of drilling the hole 400 in the excavation blind area 300 can be simultaneously executed in the receiving chamber 500 and the originating chamber 600, on one hand, the hole 400 is drilled in the excavation blind area 300 in the receiving chamber 500, the construction of a rectangular pipe jacking machine is not influenced, on the other hand, more targeted drilling is carried out in the originating chamber 600 according to the condition of the surface 800 to be excavated, and the construction efficiency is improved.
Further, the step of drilling the hole 400 in the excavated blind area 300 is performed in the originating chamber 600 based on the rectangular pipe jacking machine having the retractable function.
In this design, when the receiving chamber 500 is not available in the construction condition or the receiving chamber 500 does not facilitate the step of drilling the hole 400 in the excavated blind area 300 during the construction process, the step of drilling the hole 400 in the excavated blind area 300 may be performed according to the condition of the surface 800 to be excavated in the originating chamber 600 based on the retractable function of the rectangular pipe jacking machine.
EXAMPLE III
On the basis of any embodiment, the step of predetermining the position of the excavation blind area on the surface to be excavated according to the cutter head layout of the rectangular pipe jacking machine comprises the following steps: and drawing a layout of the cutter head 200 of the rectangular pipe jacking machine on the surface 800 to be excavated.
As shown in fig. 3, in a specific embodiment, the method for processing dead zone excavation of a rectangular pipe jacking machine includes:
step 300: drawing a cutter head layout of the rectangular pipe jacking machine on a surface to be excavated;
step 302: drilling in the excavation blind area;
step 304: and controlling the rectangular pipe jacking machine to start construction.
By drawing the cutter head 200 layout of the rectangular push bench on the surface 800 to be excavated, the positions of the gaps between the cutter head 200 and between the cutter head 200 and the shield body 100, namely, the position of the excavation blind area 300, can be accurately determined, and then the step of drilling 400 is performed in the excavation blind area 300, so that the soil on the excavation blind area 300 is damaged in advance, the interference of the soil of the excavation blind area 300 on the construction of the rectangular push bench is avoided, the tunneling resistance of the rectangular push bench is reduced, and the tunneling track of the rectangular push bench is more accurate after the construction is started.
In addition, other mapping methods can also be used to determine the position of the dead zone 300 on the surface 800 to be excavated.
Example four
As shown in fig. 4, on the basis of any of the above embodiments, the method for processing the rectangular pipe jacking machine excavation dead zone includes:
step 400: drawing a cutter head layout of the rectangular pipe jacking machine on a surface to be excavated;
step 402: drilling in the excavation blind area;
step 404: controlling the rectangular pipe jacking machine to start construction;
step 406: and when the broken soil body is hardened again after the drilling step is carried out in the excavation blind area, the step of drilling the excavation blind area is carried out again in the receiving chamber.
Before the construction of the rectangular push bench, the layout of the cutter head 200 of the rectangular push bench is drawn on the surface 800 to be excavated to determine the excavation dead zone 300 between the cutter head 200 and between the cutter head 200 and the shield body 100, and then the excavation dead zone 300 is drilled with a hole 400, so that the soil body of the excavation dead zone 300 can be effectively prevented and crushed, and a foundation is laid for the subsequent construction of the rectangular push bench. The soil on the excavation blind area 300 is damaged through the pre-drilling 400, the mobility of the soil can be mentioned, the soil on the excavation blind area 300 can be slightly disturbed to fall off in the tunneling process of the rectangular push bench, the interference of the soil on the excavation blind area 300 on the construction of the rectangular push bench is avoided, the tunneling resistance of the rectangular push bench is reduced, the burden of the cutter head 200 is effectively reduced, and the construction of the rectangular push bench is smoother. In addition, soil on the excavation blind area 300 is damaged in advance, the machine head posture of the rectangular push bench can be prevented from being transmitted and deviated, and the excavation track of the rectangular push bench after construction is more accurate.
In addition, in the construction process of the rectangular push bench, after the step of drilling 400 in the excavation blind area 300, when the soil body broken due to the drilling 400 on the excavation blind area 300 is hardened again, the step of drilling 400 in the excavation blind area 300 can be executed again in the receiving chamber 500, so that the soil body of the excavation blind area 300 is broken again, the interference of the soil body of the excavation blind area 300 on the construction of the rectangular push bench is avoided, the tunneling resistance of the rectangular push bench is reduced, and the tunneling track of the rectangular push bench is more accurate after the construction is started.
Further, the horizontal drilling machine 700 is used for drilling in the dead excavation region 300, construction is simple and efficient, and the horizontal drilling machine 700 can move in a portable mode, so that drilling in all positions of the section of the surface 800 to be excavated is achieved. Further, the horizontal drilling machine 700 can drill a hole 400 at a depth of at least 300 meters, and the diameter of the drilled hole 400 can be adjusted as desired.
It is understood that various types of horizontal drilling machines 700 are suitable for use with the present invention.
EXAMPLE five
On the basis of any of the above embodiments, the number of holes 400 to be drilled 400 in the excavation dead zone 300 is plural. By drilling a plurality of holes 400 in the excavation blind area 300, soil bodies at a plurality of positions can be crushed, and resistance to subsequent construction of the rectangular push bench due to the fact that large-area undamaged soil bodies appear in the area of the excavation blind area 300 is avoided.
Further, when the number of the holes 400 is plural, the plural holes 400 are uniformly spaced on the dead excavation region 300. The holes 400 are uniformly distributed in the area of the excavation blind area 300 at intervals, so that the soil body of the excavation blind area 300 is damaged more accurately, and resistance to subsequent construction of the rectangular push bench due to the fact that the soil body which is not damaged in a large area is prevented from occurring.
Further, the number of holes 400 is proportional to the area of the excavated blind area 300. The holes 400 are arranged in a manner that the holes are in direct proportion to the area of the excavation blind area 300, so that the soil body of the excavation blind area 300 can be damaged more perfectly, when the area of the excavation blind area 300 is large, a relatively large number of holes 400 can be drilled in the excavation blind area 300, and the situation that the large-area undamaged soil body is generated in the area of the excavation blind area 300 and resistance is caused to the subsequent construction of the rectangular push bench can be avoided.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A processing method for rectangular pipe jacking machine excavation blind areas is characterized by comprising the following steps:
the method comprises the steps of determining the position of an excavation blind area on a surface to be excavated in advance according to a cutter head layout diagram of a rectangular pipe jacking machine;
drilling holes in the excavation blind areas;
controlling the rectangular pipe jacking machine to start construction;
when the crushed soil body after drilling is hardened again, the step of drilling in the excavation blind area is executed again in the receiving chamber;
the method for predetermining the position of the excavation blind area on the surface to be excavated according to the cutter head layout of the rectangular pipe jacking machine comprises the following steps:
drawing a cutter head layout of the rectangular pipe jacking machine on a surface to be excavated;
and the step of drilling in the excavation blind area is executed in the receiving chamber and/or the starting chamber.
2. The method of handling the dead zone excavation area of the rectangular pipe jacking machine as claimed in claim 1, wherein the step of drilling the dead zone excavation area is performed at an originating chamber based on the rectangular pipe jacking machine having a retractable function.
3. The method for processing the dead zone excavated by the rectangular pipe jacking machine according to claim 1, further comprising:
and when the excavation blind area is drilled and the broken soil body is hardened again, the step of drilling the excavation blind area is executed again in the receiving chamber.
4. The method of handling the rectangular push bench dead zone excavation according to claim 3, wherein a horizontal drilling machine is used to drill the dead zone excavation.
5. The method of handling the rectangular push bench excavation dead zone of claim 3, wherein the number of holes to be drilled in the excavation dead zone is plural.
6. The method of claim 5, wherein when there are a plurality of holes, the holes are evenly spaced across the excavated blind area.
7. The method of claim 5, wherein the number of holes is proportional to the area of the excavated blind area.
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| CN116066130A (en) * | 2023-03-06 | 2023-05-05 | 中交第一航务工程局有限公司 | Rectangular jacking pipe construction method for long-distance full-section rock stratum condition |
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| CN101666231B (en) * | 2009-06-24 | 2011-11-16 | 中铁隧道股份有限公司 | Shield machine warehouse entry method |
| US8932684B2 (en) * | 2009-07-29 | 2015-01-13 | Bayer Materialscience Ag | Multi-layer products comprising acrylate containing coatings |
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| CN108266202A (en) * | 2018-03-28 | 2018-07-10 | 中铁上海工程局集团有限公司 | Rectangular pipe jacking machine excavation face blind area breaker and its method |
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