CN117385891A - Method for sawing and removing high-strength rock ropes of foundation pit - Google Patents
Method for sawing and removing high-strength rock ropes of foundation pit Download PDFInfo
- Publication number
- CN117385891A CN117385891A CN202311110207.XA CN202311110207A CN117385891A CN 117385891 A CN117385891 A CN 117385891A CN 202311110207 A CN202311110207 A CN 202311110207A CN 117385891 A CN117385891 A CN 117385891A
- Authority
- CN
- China
- Prior art keywords
- rock
- foundation pit
- construction
- sawing
- ropes
- 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
- 239000011435 rock Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000010276 construction Methods 0.000 claims abstract description 47
- 238000009412 basement excavation Methods 0.000 claims abstract description 44
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000005553 drilling Methods 0.000 claims abstract description 29
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 20
- 239000010432 diamond Substances 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 239000000428 dust Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000004575 stone Substances 0.000 abstract description 11
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000004891 communication Methods 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
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011405 expansive cement Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a method for sawing and removing high-strength rock ropes of a foundation pit and a construction method thereof, belonging to the technical field of stone excavation construction, wherein the construction method comprises the following steps: in the method for sawing and removing high-strength rock ropes of a foundation pit, the improvement comprises the following steps: s10: preparing construction, determining a site environment, and establishing perfect protection measures; s20: determining a slope top excavation boundary line, determining the positions of a support pile and a waterproof curtain, and then excavating; s30: the foundation pit support and earth excavation are alternately carried out; s40: cleaning the rock surface, and drilling and lofting the rock; s50: drilling according to the lofting point positions, and cleaning the holes in time; s60: the wire saw machine uses diamond wires to cut the rock in a plane; s70: breaking rock, cleaning in time and transferring away from the field in time. The beneficial effects of the invention are as follows: the construction method can improve the cutting efficiency under the condition of ensuring a smaller working surface, avoid the condition of large dust, and play the roles of saving the construction period and reducing the construction cost.
Description
Technical Field
The invention relates to the technical field of stone excavation construction, in particular to a sawing and removing method for a high-strength rock rope of a foundation pit.
Background
Earth excavation is an important process in engineering projects and mainly involves loosening, crushing, excavating and transporting of soil and rock. The excavation works can be classified into earth excavation and stone excavation according to rock properties. In practical engineering, these two types will generally exist simultaneously. In contrast, the difficulty of stone excavation is greater, the cost is higher, and the construction is also more difficult. The rock excavation usually adopts a blasting method, but the method has higher danger, noise pollution and environmental pollution. In addition, blasting construction may have a serious impact on the safety of production and life of nearby buildings and residents.
In order to overcome the limitations of conventional blasting methods, the engineering community has proposed a variety of static blasting techniques. One such technique involves drilling holes in the rock surface, then filling with an expansion material, fracturing the rock by using internal stresses created during expansion, and then breaking, excavating and transporting the rock. For example, static blasting methods using expansive cement to crack rock, and in situ formulation of breakers, can reduce the time to wait for expansion. However, these techniques also have some limitations. For example, a longer action time of the swelling agent may result in a slower construction progress. If the site configuration method is adopted, special personnel are needed for configuration, and meanwhile, when the stone amount is large, the configuration consumption is large, and the waiting time is correspondingly prolonged. Thus, although these static blasting techniques are somewhat novel, they still need to be considered for efficiency and cost in practical applications. Further research and improvement may be needed to enhance its utility in stone excavation.
At present, the domestic rope saw cutting technology is widely applied to the technical field of engineering. Common modes are cutting the communication channel door in the excavated tunnel by adopting a rope saw, non-blasting stone excavation and the like. The construction method for cutting the communication channel door in the excavated tunnel by the rope saw is mainly used for vertical face cutting and is suitable for projects with small engineering quantity. For the applicability of planar rock formation construction, further practice and verification may be required as it is primarily directed to facade cutting. Non-blasting stone excavation firstly excavates pits at multiple points on a rock layer, and then cuts through the pits by adopting a rope saw. The method can be used for plane excavation, but has relatively large construction difficulty due to the need of a large construction working surface and more mechanical equipment, so the applicability of the method can be limited to a certain extent, the construction period is increased, and the inconvenience is brought to stone excavation construction.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for sawing and removing a high-strength rock rope of a foundation pit, which can improve the cutting efficiency under the condition of ensuring a smaller working surface, avoid the conditions of large dust and large noise, and play roles in saving the construction period and reducing the construction cost.
The technical scheme adopted for solving the technical problems is as follows: in the method for sawing and removing high-strength rock ropes of a foundation pit, the improvement comprises the following steps:
s10: preparing construction, determining a site environment, and establishing perfect protection measures;
s20: determining a slope top excavation boundary line, determining the positions of a support pile and a waterproof curtain, and then excavating;
s30: the foundation pit support and earth excavation are alternately carried out;
s40: cleaning the rock surface, and drilling and lofting the rock;
s50: drilling according to the lofting point positions, and cleaning the holes in time;
s60: the wire saw machine uses diamond wires to cut the rock in a plane;
s70: breaking rock, cleaning in time and transferring away from the field in time.
In the above steps, the specific steps of step S20 are as follows:
s201: determining a slope top excavation edge line according to slope foot line positioning and combining slope rate and ground elevation;
s202: the engineer determines the construction position of the support pile and the waterproof curtain;
s203: layering and sectionally excavating from north to south and from west to east, and excavating an operating platform at the same time;
s204: carrying out next layer of earth excavation after each layer of earth excavation is completed;
s205: and the earthwork is transported from top to bottom to the proper position of the unearthing ramp, and the slag-soil truck is timely organized and transported through the clearing road.
In the above steps, the step S40 specifically includes:
s401: manually cleaning the rock surface;
s402: conveying the soil residues to a proper position, and timely clearing;
s403: equidistant drilling lofting is carried out on the rock top surface and the vertical surface in the horizontal direction and the vertical direction of the rock.
In the above steps, the step S50 specifically includes:
s501: constructing a construction channel on the side surface of the rock;
s502: aligning a lofting point by adopting a red point laser aligner, and approving the laser irradiation direction to ensure that the laser always irradiates the tail end of the drill rod in the drilling process;
s503: drilling the rock by adopting a down-the-hole drill according to the earlier drilling lofting mark point position;
s504: and (5) cleaning the residual water and the residual slag in the drilled hole by adopting an air compressor.
In the above steps, the step S60 specifically includes:
s601: tying the diamond rope to a threading device, and driving the diamond rope to be pulled out from the horizontal direction to the vertical direction through the threading device;
s602: cutting two faces in the vertical direction by using a diamond wire;
s603: cutting off the diamond wire in the horizontal direction;
s604: and (3) spraying water in real time to reduce dust in the cutting process.
In the above steps, the step S60 specifically includes:
s701: crushing rock blocks by using a digger and a crusher;
s702: transferring the crushed rock blocks by adopting a forklift and a crane;
s703: after the rock mass is transferred to the flat car, fixing is carried out by adopting a steel rope and a protective net;
s704: the flat-plate vehicle leaves the site and is cleaned in time.
Further, in step S30, the accumulated water of the foundation pit needs to be checked before the earthwork is excavated, and the accumulated water is pumped and discharged, so as to prevent the accumulated water from softening the soil to form the slurry soil, so that the loading is difficult, and the transportation road is polluted.
Further, in step S30, the crown beam, the waist beam, the hanging net and the anchor spraying are performed alternately with the earth excavation in the foundation pit supporting engineering, and after the earth excavation of each layer is completed, the construction of the supporting structure is completed, and when the crown Liang Yaoliang and the anchor rope reach the design strength, the lower earth excavation is performed.
Further, in the step S30, during the process of excavation of the foundation pit, foundation pit monitoring and sedimentation monitoring of surrounding structures are required, and it is found that the construction should be stopped immediately when the sedimentation is too large, and reinforcing measures are taken.
Further, in step S60, the cutting machine should be constructed to maintain a certain safety distance from the cutting surface, and a protective fence is provided to require the operator to wear the helmet and the dust mask correctly, so as to prevent flying stones from injuring the operator during the cutting process.
The beneficial effects of the invention are as follows: the construction method can improve the cutting efficiency under the condition of ensuring a smaller working surface, avoid the conditions of large dust and large noise, and play the roles of saving the construction period and reducing the construction cost.
Drawings
FIG. 1 is a flow chart of a method of construction of a method of sawing and removing high strength rock ropes for a foundation pit according to the present invention;
FIG. 2 is a schematic plan view of foundation pit earth excavation construction according to the present invention;
FIG. 3 is a schematic representation of a borehole loft of the present invention;
FIG. 4 is a schematic plan view of a borehole according to the present invention;
fig. 5 is a schematic diagram of the rope saw cutting of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the invention can be interactively combined on the premise of no contradiction and conflict.
Referring to fig. 1 to 5, the invention further provides a method for sawing and removing high-strength rock ropes of a foundation pit, and in the embodiment, the method comprises the following steps:
s10: preparing construction, determining a site environment, and establishing perfect protection measures;
s20: determining a slope top excavation boundary line, determining the positions of a support pile and a waterproof curtain, and then excavating;
s30: the foundation pit support and earth excavation are alternately carried out;
s40: cleaning the rock surface, and drilling and lofting the rock;
s50: drilling according to 40 positions of the lofting point, and cleaning the holes in time;
s60: the wire saw 100 uses the diamond wire 90 to make a plane cut of rock;
s70: breaking rock, cleaning in time and transferring away from the field in time.
In the invention, the construction method firstly sets the lofting point 40 and drills holes on the rock, and then uses the diamond wire 90 and the wire saw 100 to cut the rock surface. After the excision is completed, the excision is broken by a breaking device. Through setting up this a series of operations, under the less circumstances of assurance working face, improved excision efficiency, and avoid the dust big, the big condition of noise. The blasting mode is not required to be set, the inconvenience brought to construction when the configuration dosage is large and the waiting time is long can be avoided, the effects of saving the construction period and reducing the manufacturing cost are achieved, and the construction cost and the influence on the life of surrounding residents are indirectly reduced.
Referring to fig. 1, the operation platform 10 is excavated in a grading manner from north to south and from west to east, wherein the layering thickness is about 3m (the special condition of a partial area is not more than 5 m), the segmentation length is 30m, and the operation platform 10 is excavated in a grading manner according to the ratio of 1:1.
The step S20 specifically comprises the following steps:
s201: determining a slope top excavation edge line according to slope foot line positioning and combining slope rate and ground elevation;
s202: the engineer determines the construction position of the support pile and the waterproof curtain;
s203: layering and sectionally excavating from north to south and from west to east, and simultaneously excavating an operation platform 10;
s204: carrying out next layer of earth excavation after each layer of earth excavation is completed;
s205: the earthwork is transported from top to bottom to the proper position of the unearthed ramp 20 and the muck trucks are transported through the clearing way 30 in time.
Referring to fig. 1 and 2, the accumulated water of the foundation pit needs to be checked before the earthwork is excavated, and the accumulated water is pumped and discharged to prevent the accumulated water from softening the soil to form mud soil, which makes loading difficult and causes pollution to the transportation road. Crown beams, waist beams, hanging net spray anchors and earth excavation in foundation pit supporting engineering are alternated, after each layer of earth excavation is completed, the construction of a supporting structure is completed, and when crowns Liang Yaoliang and anchor cables reach the design strength, the lower layer earth excavation is performed. In this embodiment, the design strength to be achieved is 75% of the crown beam and the wale, and 80% of the anchor cable strength, respectively. In the process of excavation of the foundation pit, foundation pit monitoring and sedimentation monitoring of surrounding structures are needed, and the construction is stopped immediately and reinforcing measures are taken when the sedimentation is too large.
Furthermore, the foundation pit can be temporarily bypassed if hard rock is encountered in the process of excavating the foundation pit. In order to avoid damage of the excavator, the soil with the rock surface of 10cm can be left without digging, and manual cleaning is adopted. The cleaned dregs are cleared in time, and drilling and lofting are carried out on the top surface and the vertical surface of the rock. The concrete lofting mode of drilling is: equidistant lofting is performed in the direction of the rock X, Y, Z with a pitch of no more than 2m. Meanwhile, in order to facilitate later drilling construction, the X-direction lofting can be 80cm higher than the ground surface.
The specific steps of the step S40 are as follows:
s401: manually cleaning the rock surface;
s402: conveying the soil residues to a proper position, and timely clearing;
s403: equidistant drilling lofting is carried out on the rock top surface and the vertical surface in the horizontal direction and the vertical direction of the rock.
Referring to fig. 1 to 5, drilling is performed in the direction of the rock X, Y, Z by using a down-the-hole drill according to the pre-drilling loft mark point. The apertures of the vertical 50 and horizontal 60 boreholes may be 10cm, the depth of the borehole being dependent on the exposed height of the rock mass, and the depth of the horizontal borehole being preferably 2m. The exposed height of the rock mass is generally less than 3m because the layered excavation thickness of the foundation pit is 2-3 m. The red spot laser is used to align the drill point to ensure that the horizontal borehole intersects the vertical borehole. To facilitate drilling holes in the top (Z direction) of the rock, a construction aisle 80 is set up on the sides of the rock with earth.
Further, the step S50 specifically includes the steps of:
s501: constructing a construction passageway 80 on the side surface of the rock;
s502: aligning the lofting point 40 by adopting a red point laser aligner 70, and approving the laser irradiation azimuth to ensure that the laser always irradiates the tail end of the drill rod in the drilling process;
s503: drilling the rock by adopting a down-the-hole drill according to the earlier drilling lofting mark point position;
s504: and (5) cleaning the residual water and the residual slag in the drilled hole by adopting an air compressor.
Still further, the step S60 specifically includes:
s601: tying the diamond wire 90 to a threading device, and driving the diamond wire 90 to be pulled out from the horizontal direction to the vertical direction through the threading device;
s602: cutting off two faces in the vertical direction using a diamond wire 90;
s603: cutting off the diamond wire 90 in the horizontal direction;
s604: and (3) spraying water in real time to reduce dust in the cutting process.
In the above step, the diamond wire 90 is tied to the threader, and the diamond wire 90 is pulled out from the horizontal direction (x or y direction) to the vertical direction (z direction) by the threader auxiliary traction. The rope saw is connected with the cutting machine, and the threading device is taken out. And starting a rope saw cutting machine to cut, firstly cutting XZ and YZ planes, and finally cutting XY planes. In order to prevent flying stones from injuring people in the cutting process of the diamond wire 90, the construction of the cutting machine should keep a safe distance of more than 5m from the cutting surface, a protective guard 110 is arranged, and operators are required to wear safety helmets and dust masks correctly.
The step S70 specifically comprises the following steps:
s701: crushing rock blocks by using a digger and a crusher;
s702: transferring the crushed rock blocks by adopting a forklift and a crane;
s703: after the rock mass is transferred to the flat car, fixing is carried out by adopting a steel rope and a protective net;
s704: the flat-plate vehicle leaves the site and is cleaned in time.
In the steps, if the rock layer area is large, the drilling group, the cutting group and the shipping group can be subjected to running water construction. Specifically, the drilling group firstly drills according to the planned point positions, and after the safe distance of more than 15m is maintained, the cutting group can start to work. Similarly, after the cutting group is cut, the shipment group can work after maintaining the safety distance of more than 15 m.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope of the present invention as defined in the appended claims.
Claims (10)
1. The method for sawing and removing the high-strength rock ropes of the foundation pit is characterized by comprising the following steps of:
s10: preparing construction, determining a site environment, and establishing perfect protection measures;
s20: determining a slope top excavation boundary line, determining the positions of a support pile and a waterproof curtain, and then excavating;
s30: the foundation pit support and earth excavation are alternately carried out;
s40: cleaning the rock surface, and drilling and lofting the rock;
s50: drilling according to the lofting point positions, and cleaning the holes in time;
s60: the wire saw machine uses diamond wires to cut the rock in a plane;
s70: breaking rock, cleaning in time and transferring away from the field in time.
2. The method for sawing and removing the high-strength rock ropes of the foundation pit according to claim 1, wherein the step S20 specifically comprises the following steps:
s201: determining a slope top excavation edge line according to slope foot line positioning and combining slope rate and ground elevation;
s202: the engineer determines the construction position of the support pile and the waterproof curtain;
s203: layering and sectionally excavating from north to south and from west to east, and excavating an operating platform at the same time;
s204: carrying out next layer of earth excavation after each layer of earth excavation is completed;
s205: and the earthwork is transported from top to bottom to the proper position of the unearthing ramp, and the slag-soil truck is timely organized and transported through the clearing road.
3. The method for sawing and removing the high-strength rock ropes of the foundation pit according to claim 1, wherein the step S40 specifically comprises the following steps:
s401: manually cleaning the rock surface;
s402: conveying the soil residues to a proper position, and timely clearing;
s403: equidistant drilling lofting is carried out on the rock top surface and the vertical surface in the horizontal direction and the vertical direction of the rock.
4. The method for sawing and removing the high-strength rock ropes of the foundation pit according to claim 1, wherein the step S50 specifically comprises the following steps:
s501: constructing a construction channel on the side surface of the rock;
s502: aligning a lofting point by adopting a red point laser aligner, and approving the laser irradiation direction to ensure that the laser always irradiates the tail end of the drill rod in the drilling process;
s503: drilling the rock by adopting a down-the-hole drill according to the earlier drilling lofting mark point position;
s504: and (5) cleaning the residual water and the residual slag in the drilled hole by adopting an air compressor.
5. The method for sawing and removing the high-strength rock ropes of the foundation pit according to claim 1, wherein the step S60 specifically comprises the following steps:
s601: tying the diamond rope to a threading device, and driving the diamond rope to be pulled out from the horizontal direction to the vertical direction through the threading device;
s602: cutting two faces in the vertical direction by using a diamond wire;
s603: cutting off the diamond wire in the horizontal direction;
s604: and (3) spraying water in real time to reduce dust in the cutting process.
6. The method for sawing and removing the high-strength rock ropes of the foundation pit according to claim 1, wherein the step S70 specifically comprises the following steps:
s701: crushing rock blocks by using a digger and a crusher;
s702: transferring the crushed rock blocks by adopting a forklift and a crane;
s703: after the rock mass is transferred to the flat car, fixing is carried out by adopting a steel rope and a protective net;
s704: the flat-plate vehicle leaves the site and is cleaned in time.
7. A method for sawing and removing high-strength rock ropes for foundation pit according to claim 3, wherein in step S30, the accumulated water of the foundation pit is checked before the earthwork is excavated, and the accumulated water is pumped and discharged to prevent the accumulated water from softening the soil to form mud soil, thereby causing loading difficulty and polluting transportation roads.
8. The method according to claim 4, wherein in the step S30, the crown beam, the waist beam, the net hanging and anchor spraying and the earth excavation are performed alternately, and the lower earth excavation is performed after the crown Liang Yaoliang and the anchor rope reach the designed strength after the construction of the supporting structure is completed after each layer of earth excavation is completed.
9. The method for sawing and removing high-strength rock ropes for foundation pit according to claim 5, wherein in step S30, foundation pit monitoring and sedimentation monitoring of peripheral structures are required during excavation of the foundation pit, and immediate stopping of construction and reinforcement measures are required when excessive sedimentation is found.
10. The method according to claim 9, wherein in the step S60, the cutting machine is constructed to keep a certain safety distance from the cutting surface, and a guard rail is provided to require the operator to wear the helmet and the dust mask correctly, so as to prevent flying rocks from injuring the operator during the cutting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311110207.XA CN117385891A (en) | 2023-08-30 | 2023-08-30 | Method for sawing and removing high-strength rock ropes of foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311110207.XA CN117385891A (en) | 2023-08-30 | 2023-08-30 | Method for sawing and removing high-strength rock ropes of foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117385891A true CN117385891A (en) | 2024-01-12 |
Family
ID=89465564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311110207.XA Pending CN117385891A (en) | 2023-08-30 | 2023-08-30 | Method for sawing and removing high-strength rock ropes of foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117385891A (en) |
-
2023
- 2023-08-30 CN CN202311110207.XA patent/CN117385891A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102182472B (en) | Backfill repairing method for tunnel collapse cavity | |
| CN109296378B (en) | Down-the-hole drill matched breaking hammer tunneling and excavating construction method | |
| CN111335902B (en) | Construction method for shield tunneling ground connection wall underpass operation subway station | |
| CN110344400A (en) | The hard rock pore-forming construction technology of churning driven opportunity | |
| CN111577334B (en) | Operating tunnel inverted arch repairing method | |
| CN111519679A (en) | Rapid grooving construction method for micro-weathering rock of diaphragm wall | |
| CN112281820A (en) | Cement fly ash gravel pile construction method | |
| CN110735436A (en) | cutting rock slope reinforced structure | |
| CN107524141B (en) | Construction method of cast-in-situ bored pile of rock soil foundation | |
| CN113803074A (en) | Construction method of tunnel structure for artificial and mechanical combined obstacle removal of water-rich sand layer | |
| CN111622228A (en) | Excavation method for stone in foundation pit | |
| CN101994314A (en) | Longhole rectangular terraced antiskid pile jump-preventing excavating construction | |
| KR101066296B1 (en) | Rock cutting method using boring lid | |
| CN110529120B (en) | Construction method for removing invasion limiting structure by chiseling VI-level surrounding rock shallow-buried underground excavation loess tunnel | |
| CN110344394A (en) | A kind of surrounding deep foundation pit shallow embedding structure base ruggedized construction and construction method | |
| CN115596453A (en) | Micro-brush slope tunnel entering method for tunnel long-distance side to pass through accumulation body | |
| CN117385891A (en) | Method for sawing and removing high-strength rock ropes of foundation pit | |
| CN104988981B (en) | A kind of well construction method of riding on present situation operation shield method drainage pipeline | |
| CN113684838A (en) | Grooving construction method for rock-socketed ultra-deep underground diaphragm wall | |
| CN114542092A (en) | Shield receiving construction method without bottom plate structure | |
| CN109707394B (en) | Construction method for subway tunnel shield receiving end tunnel portal | |
| CN111335315A (en) | Method for breaking underground obstacle pile | |
| CN107023008B (en) | Pile pulling method and system for open caisson platform for retaining wall and counterforce | |
| CN214832833U (en) | Open caisson mechanical construction device penetrating rock stratum | |
| CN112267893B (en) | Construction method of large-section tunnel |
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 |