CN112936614B - Machine for building underground continuous wall by crossing hydraulic reinforced concrete foundation - Google Patents
Machine for building underground continuous wall by crossing hydraulic reinforced concrete foundation Download PDFInfo
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- CN112936614B CN112936614B CN202110393252.5A CN202110393252A CN112936614B CN 112936614 B CN112936614 B CN 112936614B CN 202110393252 A CN202110393252 A CN 202110393252A CN 112936614 B CN112936614 B CN 112936614B
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 79
- 238000005520 cutting process Methods 0.000 claims abstract description 39
- 239000002893 slag Substances 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000004567 concrete Substances 0.000 claims description 20
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- 238000005553 drilling Methods 0.000 abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000003801 milling Methods 0.000 description 21
- 238000010276 construction Methods 0.000 description 13
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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Abstract
The invention discloses a machine for building an underground continuous wall by penetrating through a hydraulic reinforced concrete foundation, which comprises a running gear with hoisting equipment and a power system, a monitoring device, hoisting equipment, a vertical guide frame lifted by a steel wire rope hoisting machine lifting device or a rigid track lifting device, and a deviation correcting device, wherein a gear transmission box is arranged on the vertical guide frame to drive a group of rotary drilling rods, the machine also comprises a rotary milling-impacting device, a reinforced concrete column core extracting device and a slag discharging system, a connecting disc is arranged at the bottom of the rotary drilling rods, and the rotary milling-impacting device or the reinforced concrete column core extracting device is arranged below the connecting disc; the rotary milling-impacting device comprises a group of hollow cylindrical drills which are meshed or tangent in parallel; the bottom of the wall of the hollow barrel drill is L-shaped, a toothed annular edge extends outwards, and cutter teeth are arranged on the bottom surface of the annular edge; when the rotary drill rotates, toothed annular edges at the bottoms of the adjacent hollow cylindrical drills are meshed or tangent in a staggered manner, and annular tracks of rotary impact cutting of the adjacent hollow cylindrical drills are meshed or tangent.
Description
Technical Field
The invention relates to a machine for building a diaphragm wall by penetrating through a reinforced concrete foundation, in particular to a rotary-impact grooving device and an extraction device for building a diaphragm wall by penetrating through the reinforced concrete foundation and a complex stratum, belonging to the field of engineering mechanical equipment.
Background
In the engineering of hydraulic building danger-removing reinforcement reconstruction, the common problems are foundation leakage of sluice, hydropower station or reservoir dam, or potential safety hazard of insufficient anti-slip stability caused by upstream and downstream water level difference, in order to enhance the anti-seepage and anti-slip stability of the building, reduce foundation lifting force and ensure anti-seepage safety. In order to remove the danger, strengthen and reform the hydraulic building, the former construction method usually needs to cut off the current of construct a dam at the upstream and downstream, but because the alternate period of flood control and drainage and drought resistance irrigation is short, in many cases, construct a dam cut off the current to strengthen the engineering time is not allowed. Thus, is a very troublesome problem.
In addition, grooving is carried out on reinforced concrete of a building foundation, because the reinforced concrete is composed of two materials with completely different properties of reinforcing steel bars and concrete, the concrete is a brittle material and is crushed in an impact mode, the reinforcing steel bars are tough materials and are subjected to milling cutting, particularly when the concrete is crushed, long reinforcing steel bars tend to remain therein and can migrate, drill tool teeth are wound around the drill tool teeth, the drill tool teeth cannot drill, and the conventional grooving equipment cannot be used for solving the problem that the conventional grooving equipment, such as a percussion drill, a double-wheel milling machine, a rotary drilling machine, a multi-bit drilling machine and the like cannot be used for finishing regular rectangular deep grooves penetrating through the reinforced concrete foundation of the hydraulic building, and the requirement of no damage to surrounding reinforced concrete cannot be met in the grooving process. If the construction is carried out on water, the equipment also needs to have the characteristic of light weight. In fact, hydraulic buildings with hidden danger exist, because the construction of upstream and downstream dam building and cutoff cannot be adopted to remove danger and strengthen, the hydraulic buildings are required to be rebuilt by additionally opening up upstream and downstream river guiding, the engineering quantity and the required funds are very huge, and the construction period is long.
The applicant claims that the invention patent is a suspension type multi-bit rotary-impact combined tunneling type engineering grooving machine (application number: 201810659043. X, publication number: CN 108560625A) the invention relates to a suspension type multi-bit rotary-impact combined tunneling type engineering grooving machine, and the grooving machine can efficiently finish grooving operations of various complex strata including soil layers, rock layers, gravels, boulders and the like, and has good effect. The tunneling grooving mechanism combining high-frequency impact and rotary milling is basically realized in the grooving process, and the tunneling grooving mechanism is characterized in that narrow grooves and deep grooves can be formed, and rock formations around the groove walls are complete and low in damage, so that the tunneling grooving mechanism has important practical significance in basic engineering. However, the grooving machine has great difficulty in solving the problem of constructing the impermeable diaphragm wall with the required depth penetrating through the foundation slab of the reinforced concrete building.
Disclosure of Invention
The invention aims to: aiming at the problems and defects existing in the prior art, the invention is further improved and innovated on the basis of the prior application patent technology, and provides mechanical grooving equipment for building an underground diaphragm wall by penetrating through a reinforced concrete foundation and a construction process thereof.
The technical scheme is as follows: the machinery for building the underground continuous wall by penetrating through the hydraulic reinforced concrete foundation comprises a traveling device with hoisting equipment and a power system, a monitoring device, hoisting equipment, a vertical guide frame lifted by a steel wire rope hoist or a rigid rail lifting device, and a deviation correcting device, wherein a gear box is arranged on the vertical guide frame to drive a group of rotary drill rods;
The rotary milling-impacting device comprises a group of hollow cylindrical drills which are meshed or tangent in parallel; the bottom of the wall of the hollow barrel drill is L-shaped, a toothed annular edge extends out of the periphery of the wall of the hollow barrel drill, and cutter teeth are arranged on the bottom surface of the annular edge; when the rotary drill rotates, toothed annular edges at the bottoms of the adjacent hollow cylindrical drills are meshed or tangent in a staggered manner, and annular tracks of rotary impact cutting of the adjacent hollow cylindrical drills are meshed or tangent.
Preferably, the reinforced concrete column core extraction device is a hollow cylinder with a clamping block which is horizontally rotated or longitudinally rotated to cut into the bottom of the column core or a hollow cylinder with a sliding clamping ring on the extraction cylinder wall;
When the reinforced concrete column core extraction device adopts horizontal rotation to cut into a clamping block, the concrete structure of the reinforced concrete column core extraction device is a double-layer sleeved cylinder body of a rotary inner cylinder and a fixed outer cylinder, the fixed outer cylinder is formed by connecting a plurality of sections of circular arc plates, the fixed outer cylinder is fixed with a guide frame, and the rotary inner cylinder is connected with a connecting disc at the bottom of a rotary drill rod; the bottom of the fixed outer cylinder is provided with a plurality of first and second stop blocks in a distributed manner, the bottom of the rotary inner cylinder is correspondingly provided with a rotatable clamping block, the first stop block and the second stop block are matched with the rotary clamping block through a curved surface, when the bottom of the column core extraction device is lowered below the foundation plate, the rotary inner cylinder pushes the rotary clamping block at the bottom of the column core extraction device, the front end of the rotary clamping block slides along the curved surface of the stop block at the bottom of the fixed outer cylinder, so that the clamping block rotates by a certain angle and cuts into the foundation layer at the bottom of the column core, and the reinforced concrete core is lifted out of the ground;
When the reinforced concrete column core extraction device adopts longitudinal rotation to cut into a clamping block, the concrete structure of the reinforced concrete column core extraction device comprises a single-layer cylinder body arranged below a connecting disc and a hydraulic or pneumatic piston device arranged outside the single-layer cylinder wall, wherein a crank arm connecting rod is connected below the hydraulic or pneumatic piston device, the middle part of the crank arm connecting rod is fixed with the cylinder bottom through a rotating shaft, when the root part of the connecting rod is pushed down, the end part of the connecting rod rotates inwards, the bottom of the reinforced concrete column core is clamped, and the column core can be lifted out of the ground by the lifting cylinder body;
The reinforced concrete column core extraction device is characterized in that the hollow cylinder with the sliding clamping ring arranged on the cylinder wall comprises a hollow cylinder body and an inclined hole obliquely downwards formed in the cylinder wall, the sliding clamping ring is installed in the inclined hole through a spring, when the hollow cylinder drill is fixedly connected with a hard rock foundation aiming at a reinforced concrete foundation, the clamping ring is adopted to extract the cylinder under the working condition that the foundation is difficult to cut in, the clamping ring is inclined towards the axis of the rock core tube, and when the extraction device is lifted up, the clamping ring is subjected to downward friction force of the rock core to inwards extend and clamp the rock core, and the rock core is cut off by torsion and moderate impact.
Preferably, for the condition of consolidation of the lower part of a reinforced concrete foundation and a weathered stone, the device also comprises a bottom foundation rock core radial cutting device, wherein the bottom foundation rock core radial cutting device adopts a hollow cylinder which horizontally rotates to cut into a clamping block, the concrete structure of the device is a double-layer cylinder body sleeved with an inner cylinder and an outer cylinder, the outer cylinder is connected with a connecting disc at the bottom of a rotary drill rod, a plurality of third stop blocks and fourth stop blocks are distributed at the bottom of the outer cylinder, a step is arranged at the lower part of the rotary drill rod, the inner cylinder is movably arranged below the rotary drill rod through a bearing arranged on the step, a plurality of rotating shafts are arranged at the bottom of the inner cylinder, rotatable clamping blocks are arranged on the rotating shafts, cutter teeth are arranged at the inner sides of the rotatable clamping blocks, and the third stop blocks, the fourth stop blocks and the rotary clamping blocks are anastomotic with curved surfaces;
when the rotary drill rod rotates to drive the outer cylinder to rotate anticlockwise, the third stop block at the bottom of the outer cylinder pushes the rotary clamping block at the bottom of the inner cylinder to rotate, and when the rotary clamping block rotates and cannot continue to spin inwards due to the counterforce of the hard core, the thrust of the outer cylinder acts on the rotary shaft of the rotary clamping block of the inner cylinder to push the inner cylinder to rotate synchronously, so that the rotary clamping block at the bottom of the inner cylinder rotates to compress the surface of the column core and revolves around the surface of the column core; and the cutter teeth on the inner side of the rotatable clamping block are tightly pressed on the surface of the column core for inwards grinding and cutting, the rotatable clamping block is gradually and inwards rotated along with the increase of the cutting depth, after radial cutting reaches a certain depth, the rotatable clamping block of the inner cylinder is rotated and reset by controlling the clockwise rotation of the outer cylinder and utilizing the fourth stop block in combination with torsion fracture of the rock core, and the double cylinders of the foundation rock core cutting device are taken out.
The corresponding single-hole extraction device is described first, when the rotary drill rod of the column core bottom foundation rock core radial cutting device rotates to drive the outer cylinder to rotate anticlockwise, the third stop block at the bottom of the outer cylinder pushes the rotary clamping block at the bottom of the inner cylinder to rotate, when the rotary clamping block rotates and is subjected to the counterforce of hard rock core resisting and cannot continue to spin inwards, the thrust of the outer cylinder acts on the rotary shaft of the rotary clamping block of the inner cylinder to push the inner cylinder to rotate synchronously, so that the rotary clamping block at the bottom of the inner cylinder rotates to compress the surface of the column core and revolves around the surface of the column core; the cutter teeth on the inner side of the rotatable clamping block are tightly pressed on the surface of the cylindrical core for inward grinding and cutting, along with the increase of the cutting depth, the rotatable clamping block is gradually rotated inwards, after radial cutting reaches a certain depth, the torsional fracture core is combined, namely when the radial cutting process is cut to reach a set depth, the outer cylinder is controlled to rotate clockwise to enable the rotatable clamping block of the inner cylinder to rotate and reset by the fourth stop block, the double cylinders of the radial cutting device of the basic core are taken out, then the sliding clamping ring extracting device is lowered, and the clamping cylindrical core is twisted and combined with moderate impact to fracture the core at the bottom cutting position, so that the ground is provided.
When the reinforced concrete column core extraction device adopts longitudinal rotation to cut into the clamping block, the concrete structure of the reinforced concrete column core extraction device comprises a single-layer cylinder body arranged below the connecting disc and a hydraulic or pneumatic piston device arranged on the outer side of the single-layer cylinder wall, a crank arm connecting rod is connected below the hydraulic or pneumatic piston device, the middle part of the crank arm connecting rod is fixed with the cylinder bottom through a rotating shaft, when the root part of the connecting rod is pushed to the lower part, the end part of the connecting rod rotates inwards, the bottom of the reinforced concrete column core is clamped, and the column core can be lifted out of the ground by the lifting cylinder body.
The reinforced concrete column core extraction device is characterized in that the hollow cylinder with the sliding clamping ring arranged on the cylinder wall comprises a hollow cylinder body and an inclined hole obliquely downwards formed in the cylinder wall, the sliding clamping ring is installed in the inclined hole through a spring, when the hollow cylinder drill is fixedly connected with a hard rock foundation aiming at a reinforced concrete foundation, the clamping ring is adopted to extract the cylinder under the working condition that the foundation is difficult to cut in, the clamping ring is inclined towards the axis of the rock core tube, and when the extraction device is lifted up, the clamping ring is subjected to downward friction force of the rock core to inwards extend and clamp the rock core, and the rock core is cut off by torsion and moderate impact.
Preferably, a high-pressure water pipe and a nozzle are arranged at the bottom of the reinforced concrete column core extracting device, and aerated high-pressure water is injected into the bottom surface of the column core when the column core is lifted upwards.
Preferably, the impact output part of the impact device is connected with or is overhead on the top of each rotary drill rod through a buffer device, or is overhead on the grouped rotary drill rod connecting beams, the grouped rotary drill rod connecting beams are suspended below the frame bottom beam through a suspension device, and the connecting beam ends of the grouped rotary drill rods are connected through a limiting sliding device.
Preferably, the slag discharging system is a double-layer hollow barrel slag discharging system which adopts a double-layer hollow barrel, namely an outer sleeve is additionally arranged outside the hollow barrel drill, a cavity between the double-layer hollow barrel and the outer sleeve is used as a slag discharging channel, or a single-layer hollow barrel slag discharging system which adopts a gap between the inner wall of the hollow barrel drill and a column core as a slag discharging channel;
The top of the outer sleeve of the double-layer hollow cylinder is connected with the bottom of the guide frame in a sealing way, the top of the hollow cylinder drill is connected with the rotary drill rod of the hollow cylinder drill in a sealing way, the lower part of the hollow cylinder drill is connected with the bottom of the outer sleeve through a rotary sealing piece, and mud enters a cavity between the hollow cylinder drill and the wall of the outer sleeve from a cutter tooth gap at the bottom of the hollow cylinder drill and then is connected with an external fixed pipeline through a joint at the upper part of the outer sleeve;
Or when the impact output part of the high-frequency impact device corresponds to the top of a group of hollow barrel drill rotary drill rod connecting beams, the rotary drill rod is a hollow drill rod, the slag discharging system directly enters the hollow rotary drill rod from a cavity between the hollow barrel drill and the wall of the outer sleeve, and then is connected with a slurry discharging hose through a joint at the top end of the frame;
The single-layer hollow cylinder slag discharging system is characterized in that a coaming and a flexible sealing element are arranged at the tops of the bottom beam of the guide frame and the hollow drill cylinder, the bottom of the coaming is mounted at the top of the hollow drill cylinder in a sealing manner, the flexible sealing element is fixedly mounted below the bottom beam of the guide frame, the edge of the flexible sealing element extends downwards outwards and obliquely, a flange is arranged at the edge of the flexible sealing element, a slag discharging hole is formed in the top of the hollow drill cylinder, and an inlet of a slag discharging pipe is positioned above the slag discharging hole.
Preferably, the bottom of the hollow barrel drill is provided with a steel bar detection sensor.
Preferably, an electromagnet is arranged at the bottom of the hollow barrel drill.
Preferably, a high-pressure water pipe and a nozzle are arranged at the bottom of the reinforced concrete column core extracting device, and aerated high-pressure water is injected into the bottom surface of the column core when the column core is lifted upwards.
The beneficial effects are that: compared with the prior art, the invention has the following advantages:
1) Compared with single-hole continuous grooving, the parallel-meshed or tangent hollow drums are adopted to drill grooves, so that the problem of continuity caused by deviation of positioning and perpendicularity between single holes is avoided, the parallel-meshed guiding grooving ensures the continuity and seepage-proofing effect of the wall, and simultaneously, the grooving efficiency is greatly improved.
2) Compared with a full drill, the hollow barrel drill can greatly reduce the work load of concrete crushing of the reinforced grinder, reduce the total weight on bit and impact milling power, and lighten the equipment.
3) The circular cutting of the parallel meshed hollow barrel drills can reduce the residual area on the rectangular section by staggered tracks without greatly staggering the barrel drills, so that the structural stability can be ensured, and the requirement of processing precision can be met.
4) Milling under reasonable drilling and high-frequency moderate impact are combined, working states of rotary milling and high-frequency impact can be adjusted according to actual conditions, and the problem that a reinforced concrete structure formed by two materials with distinct performances of reinforced steel bars and concrete is drilled and grooved is effectively solved.
5) The slag discharging system adopts the reverse circulation of the isolation space and the slag removal of the magnet, so that concrete slag and steel bar fragments can be removed in time, repeated milling and grinding are avoided, the efficiency is improved, and related faults are avoided.
6) The technology and the applicant have patents, namely a suspension type multi-bit rotary-impact combined tunneling type engineering grooving machine, with the application number: the multi-bit rotary-impact tunneling device of 201810659043. X can be mutually adapted in structure, so that after the reinforced concrete foundation is penetrated, the multi-bit rotary-impact tunneling device is utilized to form grooves on the foundation, the front working procedure and the rear working procedure are mutually coordinated, the timely and rapid replacement of components is facilitated, and the slag discharging system is coordinated and unified.
7) The grooving machine can be arranged on a special movable working platform on water for operation, the special movable platform is a ship body with a hydraulic lifting support frame, water is filled during operation in place to enable the ship body to sink, and the hydraulic lifting support frame is arranged on the foundation of a hydraulic building.
8) The application can implement the whole process of underground seepage prevention, danger removal and reinforcement by a water operation mode, avoids the cutoff of cofferdams built at the upstream and downstream of a hydraulic building for danger removal and reinforcement, adapts to the alternation of flood control and irrigation periods, and under the condition of ensuring the normal operation of flood discharge and irrigation of the hydraulic building, the underground seepage prevention wall is segmented into grooves to be irrigated timely, small movable steel plate protective cylinders are arranged at the periphery of a groove hole of the segmented groove for implementing the mud circulation of mud wall protection and slag removal, the upper end of the small movable steel plate protective cylinders are higher than the water surface, and the water stop is arranged at the contact part of the movable steel plate protective cylinders and a building foundation. The host can be arranged on a working bridge or a special water working platform.
Drawings
FIG. 1 is a schematic view of the whole apparatus of example 1;
FIG. 2 is a schematic one-to-one structure of the hollow cylindrical drill and the high frequency impact device in example 1;
FIG. 3 is a schematic diagram of the slag discharging system of the double-layer hollow cylinder in the embodiment 1;
FIG. 4 is a schematic diagram of a single-layer hollow cylinder slag discharging system in example 1;
FIG. 5 is a schematic view of a 4-level rotary plunge double-layer extraction apparatus according to example 1;
FIG. 6 is a schematic diagram of a one-time drilled trough structure according to example 1;
FIG. 7 is a schematic view of the horizontal rotary lancing double-layer extraction device of FIG. 5 in the A-direction;
FIG. 8 is a schematic one-to-two structure of the hollow drill and the high frequency impact device of example 2;
FIG. 9 is a schematic view of the structure of the single-layer cartridge extraction device of example 2;
FIG. 10 is an enlarged schematic view of the structure of a connecting rod of the single-layer barrel extraction device according to example 2;
FIG. 11 is a schematic view in the direction A of FIG. 9;
FIG. 12 is a schematic view showing the structure of a single-layer snap ring extraction device in example 2;
Fig. 13 is a schematic structural diagram of a radial cutting device for a foundation core at the bottom of a column core in embodiment 2;
FIG. 14 is a partial view taken from the A direction in FIG. 13;
FIG. 15 is an enlarged view of a portion of the portion I of FIG. 14;
FIG. 16 is a schematic diagram of a slag discharging system of a double-layer hollow cylinder in example 2.
Detailed Description
The invention is further elucidated below in connection with the drawings and the specific embodiments.
Example 1
As shown in fig. 1-2, the embodiment provides a grooving device for building an impermeable underground continuous wall by penetrating through a reinforced concrete foundation and a complex stratum of a building, which comprises a traveling device and a monitoring device of a hoisting device and a power system which are arranged on the existing device, wherein a vertical guide frame 1 lifted by a steel wire rope or a rigid lifting device, a rotary milling-impacting device and a columnar core extracting device are hung at the traction end of the hoisting device, and a deviation rectifying device 2, a high-frequency impacting device 3 and a slag discharging system are arranged on the vertical guide frame 1. Wherein: the deviation correcting device is arranged at the upper part and the lower part of the vertical guide frame, and the rotary milling-impacting device is arranged below the vertical guide frame. The structure and principle of the deviation correcting device and the high-frequency impact device are basically the same as those of the prior application patent mentioned in the background art, and the deviation correcting device and the high-frequency impact device are repeated in the embodiment.
The main innovation points of the structure of the embodiment are a rotary milling mechanism of a rotary milling-impacting device and a columnar core extracting device. The columnar core extraction device of the invention can be a single set of equipment. Or the bottom of the rotary drill rod is provided with a bolt connecting disc connected with the hollow cylinder, and the bolt connecting disc can be connected with the hollow cylinder drill or the cylinder of the column core extraction device, when the cutter tooth drill at the bottom of the hollow cylinder drill reaches below the bottom surface of the reinforced concrete foundation, a guide frame is put forward, the cylinder of the hollow cylinder drill at the bottom is replaced with the cylinder of the matched column core extraction device, the rotary lifting is carried out, the reinforced concrete column core 11 is taken out, and the reinforced concrete foundation crossing process is completed. In this embodiment, the replacement mounting below the vertical guide frame will be described in detail.
As shown in fig. 3: the rotary milling mechanism of the embodiment comprises 4 hollow barrel drills 4 which are arranged in parallel, high-frequency impact devices 3 which are arranged on a vertical frame and correspond to the positions of each hollow barrel drill one by one, toothed annular edges 4-1 extend out of the periphery of the bottom of the barrel wall of each hollow barrel drill in an L shape, the toothed annular edges of the bottoms of adjacent hollow barrel drills are meshed in a staggered manner, cutter teeth 4-2 are arranged on the bottom surfaces of the annular edges of the adjacent hollow barrel drills so as to enable annular tracks of rotary impact cutting of the adjacent hollow barrel drills to be connected, and impact output parts of the high-frequency impact devices are connected or are propped against the tops of hollow barrel drill rotary drill rods at corresponding positions; the two adjacent parallel hollow barrel drills are driven to rotate by the same group of hydraulic or electric and reduction boxes and are impacted in the vertical direction by the high-frequency impact device, and rotary milling and high-frequency impact force are transmitted to cutter teeth at the bottom end of the hollow barrel drills. Through the rotary-impact drilling annular tracks of the adjacent drilling barrel cutter teeth, the range of residual rock and soil on the rectangular section can be reduced as much as possible, the adjacent hollow barrel drills are not required to be staggered greatly due to the fact that the reinforced concrete foundation has a large thickness, and the length of a rotary shaft of the barrel drill is shortened, so that stability, precision and sealing performance of structures such as transmission are guaranteed.
The slag discharging system of the embodiment is a double-layer hollow cylinder, and a single-layer hollow cylinder can also be adopted.
As shown in fig. 3: when the double-layer hollow cylinder is adopted, the double-layer hollow cylinder comprises an outer sleeve 5 arranged outside the hollow cylinder drill, the top of the outer sleeve is in sealing connection with the bottom of the guide frame, the top of the hollow cylinder drill is in sealing connection with a rotary drill rod of the hollow cylinder drill, the lower part of the hollow cylinder drill is connected with the bottom of the outer sleeve through a rotary sealing piece 6, slurry enters a cavity channel between the hollow drill cylinder and the wall of the outer sleeve from the clearance of a bottom cutter of the hollow drill cylinder, and a pipeline joint 12 connected with an external fixed pipeline is arranged on the side surface of the upper part of the outer sleeve. The slurry sand pump sucks out and filters the slurry and returns into the groove for reverse circulation, and the slurry circulation also solves the problem of cooling the cutter teeth.
As shown in fig. 4: when adopting the hollow section of thick bamboo structural style of individual layer, the hollow section of thick bamboo of individual layer is for establishing bounding wall 7 and flexible sealing member 8 at guiding frame 1 floorbar and hollow drill cylinder 4 top, and bounding wall bottom seal installs in hollow drill cylinder 4's top, and flexible sealing member fixed mounting is in guiding frame floorbar's below and the edge of flexible sealing member extends to outside oblique below has the hem, and hollow drill cylinder's top is equipped with row's cinder hole 9, and row's cinder pipe import 10 is arranged in the bounding wall space and is located row's cinder hole top. When the slag discharge pipe starts to work, the flexible sealing member is pressed to be sealed with the coaming to form a seal, flushing circulating slurry downwards flows from the outer side of the cylinder body, upwards flows through a clearance between the inner side of the cylinder body and the rock core through a cutter tooth clearance, and is discharged by the slag discharge pipe.
The columnar concrete core extraction device of the embodiment can extract 4 concrete cores which are cut into a piece at the same time, and can also extract the concrete cores respectively in a single hole. In this embodiment, a description will be given of a 4-double-layer cylinder structure as an example:
As shown in fig. 5-7, the column core extraction device in this embodiment adopts a horizontal rotary cutting fixture block, the concrete structure of the column core extraction device is a double-layer cylinder, the rotary inner cylinder and the fixed outer cylinder are sleeved, the fixed outer cylinder 14 is formed by connecting a plurality of sections of circular arc plates, the fixed outer cylinder is fixed with a guide frame, and the rotary inner cylinder 16 is connected with a connecting disc at the bottom of a rotary drill rod; the fixed urceolus bottom distributes and is provided with a plurality of first dogs 17, second dogs 18, and rotatable fixture block 19 is set up corresponding in rotatory inner tube bottom, coincide with the rotatory fixture block with the curved surface between first, second dogs, when the post core extraction element bottom descends to below the foundation plate, rotatory inner tube promotes the rotatory fixture block of its bottom, and rotatory fixture block front end slides along fixed urceolus bottom dog curved surface, makes the fixture block rotatory certain angle to cut into post core bottom soil layer, put out reinforced concrete core ground.
The construction process of the invention comprises the following steps:
firstly, arranging a small movable steel plate cofferdam around a groove section segmented into grooves in a water operation mode; the second step, grooving and deslagging, which comprises the following three grooving methods under the working conditions of the drilling and the rising:
When the reinforced concrete foundation of the building is drilled or the reinforced concrete foundation is fixedly connected with a soil layer or a hard rock foundation, a group of hollow barrel drills which are arranged side by side and are meshed with or tangent with the bottom annular edges in a staggered manner are adopted to annularly cut the reinforced concrete foundation in a groove range, and a plurality of columnar rock cores are left;
Second step, extracting columnar rock core
When the reinforced concrete foundation of the building is a soil layer, a column core extracting device with a horizontal rotation cutting-in clamping block arranged at the bottom is adopted to cut into the bottom of a basic rock core to lift the basic rock core out of the ground;
And thirdly, cleaning the groove wall, namely, after the reinforced concrete core is extracted, moving the distance of the radius of the cylindrical drills along the axial direction of the groove by utilizing the parallel hollow cylindrical drills, namely, drilling the residual triangular area on the section of the groove, so that the section of the groove is close to the rectangular section, thereby facilitating the foundation grooving construction, and particularly, leaving enough width for the guide frame of the complete multi-drill-bit comprehensive-drilling grooving machine to enter the foundation layer.
Fourth, the foundation forms a groove, and the underground continuous wall is irrigated.
When the stratum of the foundation is drilled, the parallel meshed hollow barrel drills are replaced by the parallel high-low staggered comprehensive drills with corresponding sizes in time, and the foundation under the foundation is continuously drilled into a groove; after the grooving reaches the depth required by design, the underground diaphragm wall is irrigated by the existing mature construction method, and detailed description is omitted.
Example 2
The basic structure composition of the grooving equipment for constructing the impermeable underground continuous wall penetrating through the reinforced concrete foundation and the complex stratum of the building provided by the embodiment is the same as that of the embodiment 1, and the difference is that:
As shown in fig. 8: the rotary milling device in the embodiment comprises 4 hollow barrel drills and two high-frequency impact devices which are arranged in parallel, wherein an impact output part of one high-frequency impact device is connected with or is propped against the top of a transverse connecting beam of the rotary shaft of the adjacent 2 hollow barrel drills. The rotary shafts of the hollow barrel drills which are arranged in parallel are driven to rotate by hydraulic or electric force and are impacted in the vertical direction by the high-frequency impact device through the transverse connecting beam, and rotary milling and high-frequency impact force are transmitted to cutter teeth at the bottom end of the hollow barrel drill. The adjacent barrel drills are connected with each other through a limiting sliding device, and the limiting sliding device comprises a groove plate fixedly connected with the connecting cross beam of the first group of barrel drills and a sliding block fixedly connected with the connecting cross beam of the adjacent second group of barrel drills; the two are in limit connection in the horizontal direction and can slide relatively in the vertical direction. The limiting sliding device is combined with the suspension device arranged below the frame bottom beam, so that stable engagement between adjacent connecting beam barrel drilling tool teeth is facilitated. The connecting beam and the hollow drill rotary shaft form a motion pair which is fixed in the vertical direction and rotates circumferentially through a plane bearing. The transverse connecting beam and the bottom of the guide frame are in sliding connection through a pair of suspension devices, when the transverse connecting beam is subjected to vertical impact force of the impact device, the transverse connecting beam is transmitted to the shoulder of the hollow drill bit rotary drill rod through the plane bearing and then transmitted to the hollow drill bit and the cutter teeth, so that the guide frame and equipment in the guide frame are less affected by the impact; the connection and installation structure of the contact beam in this embodiment is basically consistent with that of the previous application, and detailed description is omitted, but the present embodiment only describes the detailed structure for the innovation point.
The parallel hollow cylindrical drills form symmetrical directional rotation states in the rotation motion, so as to balance milling counter force, be favorable for the cutter teeth to take a proper angle to improve cutting efficiency, be provided with steel bar detection sensors on the circumference of the bottom of the hollow cylindrical drills, timely know the density of steel bars in the drilling process, and timely adjust drilling weight, rotating speed, impact force and impact frequency according to the dense layer of the steel bars and different layer conditions without or with fewer steel bars. In the process of grooving the parallel hollow cylindrical drills on the reinforced concrete structure, when broken reinforcing steel bars which are difficult to suck out by slurry are remained at the bottom of the cylindrical drills, the broken reinforcing steel bars are adsorbed and lifted to the ground by an electromagnet arranged at the bottom of the hollow cylindrical drills in time. Repeated milling is avoided, so that the drilling efficiency is improved.
As shown in fig. 9-11: the columnar core extraction device adopting the longitudinal rotation cutting-in fixture block in the embodiment has at least 1 single-layer extraction cylinder structure: the single-layer extraction cylinder comprises a single-layer cylinder body 31 arranged below the connecting disc and a plurality of hydraulic or pneumatic piston devices 33 arranged on the outer circumference of the single-layer cylinder wall, a crank arm connecting rod is movably connected below a piston of the hydraulic or pneumatic piston devices, the other end of the crank arm connecting rod 32 is fixedly connected with a rotating shaft arranged on the single-layer cylinder wall to form a revolute pair, and a lifting stop block 34 is fixedly arranged on the rotating shaft. When the piston of the hydraulic or pneumatic piston device drives the connecting rod to the lower side, the root end of the connecting rod rotates inwards, and the lifting stop block clamps the bottom of the reinforced concrete column core to lift the reinforced concrete core to the ground.
The scheme can be considered to be combined with adopting aeration high-pressure jet flow to impact the bottom of the rock core; namely, a high-pressure water pipe 35 and a nozzle can be arranged at a proper position at the bottom of the cylinder body, and aerated high-pressure water is injected into the bottom surface of the column core, so that the vacuum suction force between the foundation plate and the foundation is overcome, and the extraction device is lifted.
As shown in fig. 12, for the working condition that the reinforced concrete foundation is consolidated with the hard rock foundation and is difficult to cut into the foundation, a hollow cylinder with a sliding clamping ring is adopted, the hollow cylinder comprises a hollow cylinder body 36 and an inclined hole 37 which is obliquely arranged on the cylinder wall in the lower direction axis, the sliding clamping ring 38 is arranged in the inclined hole through a spring, when the extraction device is lifted up, the clamping ring is subjected to downward friction force of a rock core to inwards extend and clamp the rock core, and the rock core is cut off by torsion and moderate impact.
As shown in fig. 13-15: the device is characterized in that the device comprises a hollow cylinder of the foundation rock core radial cutting device, wherein the hollow cylinder is horizontally rotated to cut into the clamping block, the concrete structure of the device is a double-layer cylinder body sleeved with an inner cylinder 16' and an outer cylinder 14', the outer cylinder 14' is connected with a connecting disc at the bottom of a rotary drill rod, a plurality of third stop blocks 17' and fourth stop blocks 18' are distributed at the bottom of the outer cylinder, a step is arranged at the lower part of the rotary drill rod, the inner cylinder is movably arranged below the rotary drill rod through a bearing arranged on the step, and the top of the inner cylinder is in circumferential contact with the lower end of the hollow drill rod. The hollow drill rod is also used as a reverse circulation slag discharging channel, the bottom of the inner cylinder is provided with a plurality of rotating shafts, rotatable clamping blocks 19' are arranged on the rotating shafts, cutter teeth 15 are arranged on the inner sides of the rotatable clamping blocks, and the third stop block, the fourth stop block and the rotatable clamping blocks are matched with each other through curved surfaces; when the rotary drill rod shaft rotates to drive the outer barrel to rotate anticlockwise, a third stop block 17 'at the bottom of the outer barrel pushes a rotary clamping block at the bottom of the inner barrel to rotate, when the rotary clamping block rotates and is subjected to the reaction force of the hard rock core to resist and can not continuously rotate inwards, the thrust of the outer barrel acts on the rotary shaft of the rotary clamping block of the inner barrel to push the inner barrel to rotate synchronously, so that the rotary clamping block at the bottom of the inner barrel rotates to compress the surface of the column core and revolve around the surface of the column core, cutter teeth at the inner side of the rotary clamping block compress the surface of the column core to grind and cut inwards, the rotary clamping block rotates inwards gradually along with the increase of the cutting depth, after the radial cutting reaches a certain depth, the working procedure of twisting and breaking the rock core is combined, namely when the cutting of the radial cutting working procedure reaches the set depth, the outer barrel is controlled to rotate clockwise, the rotary clamping block of the inner barrel is rotated and reset by utilizing a fourth stop block 18', the double barrel is taken out, then the sliding clamping ring extracting device is lowered, and the column core is twisted and combined with moderate impact to break the rock core at the cutting position of the bottom, so that the ground is lifted.
For the scheme of extracting four column cores for one time, because the inner and outer cylinders rotate simultaneously, if two adjacent outer cylinders are staggered, the stop blocks at the bottoms of the two adjacent cylinders cannot pass through the rotating clamping blocks, so that the diameters of the adjacent cylinders are not staggered, the thickness of the cutting ring of the meshed hollow cylinder drill in the drilling and digging process can be relatively enlarged, and the diameter of the left column core is smaller, so that the diameter of the cylinder body of the column core extracting device is properly reduced, and the adjacent cylinders do not cross each other and rotate.
As shown in fig. 16: the basic structure of the slag discharging system of the embodiment is the same as that of the double-layer hollow cylinder in the embodiment 1, and the difference is that in the embodiment, the impact device does not directly impact the top of the rotary drill rod of each hollow cylinder drill, so the rotary drill rod can be made into a hollow drill rod, the hollow drill rod is used as a slag discharging channel, and a group of through holes 13 are formed in the shaft wall of the hollow drill rod; a cavity is arranged between the hollow drill and the outer sleeve, the lower part of the hollow drill is connected with the bottom of the outer sleeve through a rotary sealing piece, slurry enters a cavity channel between the hollow drill and the outer sleeve wall from a clearance gap of a bottom cutter of the hollow drill, and is gathered into a hollow drill rod through a through hole, then enters a slag suction pipeline, a rotary sealing joint 39 is arranged between the top of each hollow rotary drill rod and a fixed slag discharge pipe at the upper part of the frame, and then the fixed joint gathered into the top end of the frame is connected with a slurry discharge hose and is sucked out by sand and gravel. The parallel hollow barrel drilling milling-high-frequency impact grooving device provided by the embodiment avoids full-groove section milling impact crushing, adopts staggered or tangential annular tracks to cut basic reinforced concrete into a plurality of cylinders to be taken out, thereby not only avoiding the problem of steel bar winding, greatly reducing the workload of milling crushing, improving the drilling speed, and further reducing cutter tooth abrasion in a rotary milling-high-frequency impact mode. The equipment and the construction process thereof have the outstanding advantages that the equipment is favorable for ensuring that reinforced concrete around a hydraulic structure is not damaged in the construction process, the whole process can be completed through the water operation, the dam building and cutoff is not needed, the huge engineering quantity of the upstream and downstream dam building and cutoff can be saved, the construction period is greatly shortened, meanwhile, the construction process is not influenced by flood and drought periods, and the construction operation does not influence flood control and irrigation.
In the existing engineering machinery equipment, the working mode of double-wheel milling is milling of the full-groove section, the required torsion power is high, the equipment weight is also high, the milling wheel cutter teeth are sensitive to the stratum where the reinforcing steel bars exist, and the double-wheel milling is not suitable for tunneling of reinforced concrete. The grooving equipment for traversing reinforced concrete foundation plates of hydraulic buildings adopts a group of hollow cylindrical drills which are meshed or tangent in parallel, cutter teeth are arranged at the bottom of the cylindrical wall, and annular intersection of rotary cutting of adjacent hollow cylindrical drills is adopted to reduce the range of residual uncovered areas on rectangular sections. By the engagement of the parallel hollow cylindrical drills, the adjacent cylindrical drills can be staggered in height without greatly staggering the adjacent cylindrical drills, and more importantly, the length of the rotary shaft of the cylindrical drill is greatly shortened, so that the stability, precision and sealing performance of the transmission and other structures can be ensured. After the annular cutting is completed, taking out the reinforced concrete column core by using a column core extraction device, then, moving the guide frame along the groove axis by the distance of the radius of the drill cylinder, cleaning the residual area on the alignment section, forming a groove close to a rectangle on the reinforced concrete foundation, keeping the periphery reinforced concrete intact, forming the groove on the foundation after traversing the reinforced concrete building foundation, and casting the reinforced concrete underground diaphragm wall. According to the requirements of the danger-removing reinforcement engineering, the reinforced concrete continuous wall can also be used as a basic bearing structure, and the building is further and comprehensively modified according to the water condition change and the water resource scheduling requirement.
The hollow cylinder drills the annular cutting, the width is very small (in the metric grade), not only the winding of parts such as longer steel bar cutter setting teeth and the like in large-area broken concrete is avoided, but also the workload of milling and cutting and the abrasion of the cutter teeth are greatly reduced, the equipment is light, and the water operation is convenient to take.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (6)
1. The machinery for building the underground continuous wall by penetrating through the hydraulic reinforced concrete foundation comprises a traveling device with hoisting equipment and a power system, a monitoring device, hoisting equipment, a vertical guide frame lifted by a steel wire rope hoist or a rigid rail lifting device, and a deviation correcting device, wherein a gear box is arranged on the vertical guide frame to drive a group of rotary drill rods, the machinery also comprises a rotary milling-impacting device, a reinforced concrete column core extracting device and a slag discharging system, a connecting disc is arranged at the bottom of the rotary drill rods, and the rotary milling-impacting device or the reinforced concrete column core extracting device is arranged below the connecting disc; the rotary milling-impacting device comprises a group of hollow cylindrical drills which are meshed or tangent in parallel; the bottom of the wall of the hollow barrel drill is L-shaped, a toothed annular edge extends out of the periphery of the wall of the hollow barrel drill, and cutter teeth are arranged on the bottom surface of the annular edge; when the rotary drill rotates, toothed annular edges at the bottoms of the adjacent hollow cylindrical drills are meshed or tangent in a staggered manner, and annular tracks of rotary impact cutting of the adjacent hollow cylindrical drills are connected or tangent; it is characterized in that the method comprises the steps of,
The reinforced concrete column core extraction device is a hollow cylinder with a clamping block which is horizontally rotated or longitudinally rotated to cut into the bottom of the column core or a hollow cylinder with a sliding clamping ring on the extraction cylinder wall; when the reinforced concrete column core extraction device adopts horizontal rotation to cut into a clamping block, the concrete structure of the reinforced concrete column core extraction device is a double-layer sleeved cylinder body of a rotary inner cylinder and a fixed outer cylinder, the fixed outer cylinder is formed by connecting a plurality of sections of circular arc plates, the fixed outer cylinder is fixed with a guide frame, and the rotary inner cylinder is connected with a connecting disc at the bottom of a rotary drill rod; the bottom of the fixed outer cylinder is provided with a plurality of first and second stop blocks in a distributed manner, the bottom of the rotary inner cylinder is correspondingly provided with a rotatable clamping block, the first stop block and the second stop block are matched with the rotary clamping block through a curved surface, when the bottom of the column core extraction device is lowered below the foundation plate, the rotary inner cylinder pushes the rotary clamping block at the bottom of the column core extraction device, the front end of the rotary clamping block slides along the curved surface of the stop block at the bottom of the fixed outer cylinder, so that the clamping block rotates by a certain angle and cuts into the foundation layer at the bottom of the column core, and the reinforced concrete core is lifted out of the ground; when the reinforced concrete column core extraction device adopts longitudinal rotation to cut into the clamping block, the concrete structure of the reinforced concrete column core extraction device comprises a single-layer cylinder body arranged below the connecting disc and a hydraulic or pneumatic piston device arranged outside the single-layer cylinder wall, a crank arm connecting rod is connected below the hydraulic or pneumatic piston device, the middle part of the crank arm connecting rod is fixed with the cylinder bottom through a rotating shaft, when the root part of the connecting rod is pushed down, the end part of the connecting rod rotates inwards, the bottom of the reinforced concrete column core is clamped, and the column core can be lifted out of the ground by the lifting cylinder body;
When the reinforced concrete column core extraction device adopts a hollow cylinder with a sliding clamping ring on the cylinder wall, the concrete structure of the reinforced concrete column core extraction device comprises a hollow cylinder body and an inclined hole obliquely downwards arranged on the cylinder wall, the sliding clamping ring is arranged in the inclined hole through a spring, aiming at the working condition that a reinforced concrete foundation is fixedly connected with a hard rock foundation and is difficult to cut into the foundation, when the extraction device is lifted up, the clamping ring is subjected to downward friction force of a rock core to inwards extend and clamp the rock core, and the rock core of the foundation is cut off by torsion and moderate impact; the bottom of the hollow barrel drill is provided with a steel bar detection sensor.
2. The machine for building the underground diaphragm wall through the hydraulic reinforced concrete foundation according to claim 1, wherein the machine is characterized by further comprising a bottom foundation core radial cutting device aiming at the condition of consolidation of the lower part of the reinforced concrete foundation and the weatherstone, wherein the bottom foundation core radial cutting device adopts a hollow cylinder which horizontally rotates to cut into a clamping block, the concrete structure of the machine is a double-layer cylinder body sleeved with an inner cylinder and an outer cylinder, the outer cylinder is connected with a connecting disc at the bottom of a rotary drill rod, a plurality of third stop blocks and a fourth stop block are distributed at the bottom of the outer cylinder, a step is arranged at the lower part of the rotary drill rod, the inner cylinder is movably arranged below the rotary drill rod through a bearing arranged on the step, a plurality of rotating shafts are arranged at the bottom of the inner cylinder, rotatable clamping blocks are arranged on the rotating shafts, cutter teeth are arranged at the inner sides of the rotatable clamping blocks, and the third stop blocks and the fourth stop blocks are matched with the rotating clamping blocks through curved surfaces;
When the rotary drill rod rotates to drive the outer cylinder to rotate anticlockwise, the third stop block at the bottom of the outer cylinder pushes the rotary clamping block at the bottom of the inner cylinder to rotate, and when the rotary clamping block rotates and cannot continue to spin inwards due to the counterforce of the hard core, the thrust of the outer cylinder acts on the rotary shaft of the rotary clamping block of the inner cylinder to push the inner cylinder to rotate synchronously, so that the rotary clamping block at the bottom of the inner cylinder rotates to compress the surface of the column core and revolves around the surface of the column core; and the cutter teeth on the inner side of the rotatable clamping block are tightly pressed on the surface of the column core for inwards grinding and cutting, the rotatable clamping block is gradually and inwards rotated along with the increase of the cutting depth, after radial cutting reaches a certain depth, the rotatable clamping block of the inner cylinder is rotated and reset by controlling the clockwise rotation of the outer cylinder and utilizing the fourth stop block in combination with torsion fracture of the rock core, and the double cylinders of the foundation rock core cutting device are taken out.
3. The machine for constructing an underground diaphragm wall through a hydraulic reinforced concrete foundation according to claim 2, wherein the reinforced concrete column core extracting device is provided with a high-pressure water pipe and a nozzle at the bottom, and aerated high-pressure water is injected into the bottom surface of the column core when the column core is lifted upwards.
4. A machine for constructing a diaphragm wall through a hydraulic reinforced concrete foundation according to claim 3, wherein the impact output member of the impact device is connected to or is overhead on top of each rotary drill rod or the top of a grouped rotary drill rod connecting beam suspended below the frame bottom beam by a suspension device, and the connecting beam ends of the grouped rotary drill rods are connected by a limit sliding device.
5. The machine for constructing an underground diaphragm wall through a hydraulic reinforced concrete foundation according to claim 4, wherein the slag discharging system is a double-layer hollow barrel slag discharging system which adopts a double-layer hollow barrel, namely an outer sleeve is additionally arranged outside a hollow barrel drill, a cavity between the double-layer hollow barrel drill and the outer sleeve is used as a slag discharging channel, or a single-layer hollow barrel slag discharging system which adopts a gap between the inner wall of the hollow barrel drill and a column core as a slag discharging channel;
The top of the outer sleeve of the double-layer hollow cylinder is connected with the bottom of the guide frame in a sealing way, the top of the hollow cylinder drill is connected with the rotary drill rod of the hollow cylinder drill in a sealing way, the lower part of the hollow cylinder drill is connected with the bottom of the outer sleeve through a rotary sealing piece, and mud enters a cavity between the hollow cylinder drill and the wall of the outer sleeve from a cutter tooth gap at the bottom of the hollow cylinder drill and then is connected with an external fixed pipeline through a joint at the upper part of the outer sleeve; or when the impact output part of the high-frequency impact device corresponds to the top of a group of hollow barrel drill rotary drill rod connecting beams, the rotary drill rod is a hollow drill rod, the slag discharging system directly enters the hollow rotary drill rod from a cavity between the hollow barrel drill and the wall of the outer sleeve, and then is connected with a slurry discharging hose through a joint at the top end of the frame;
the single-layer hollow cylinder slag discharging system is characterized in that a coaming and a flexible sealing element are arranged at the tops of the bottom beam of the guide frame and the hollow drill cylinder, the bottom of the coaming is mounted at the top of the hollow drill cylinder in a sealing manner, the flexible sealing element is fixedly mounted below the bottom beam of the guide frame, the edge of the flexible sealing element extends downwards outwards and obliquely, a hem is arranged at the edge of the flexible sealing element, a slag discharging hole is formed in the top of the hollow drill cylinder, and a slag discharging pipe inlet is positioned above the slag discharging hole.
6. The machine for constructing an underground diaphragm wall through a hydraulic reinforced concrete foundation according to claim 1, wherein an electromagnet is installed at the bottom of the hollow cylindrical drill.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822228A (en) * | 2016-03-25 | 2016-08-03 | 柳超 | Double-speed variable-torque drill bit for drilling deep well |
| CN107059975A (en) * | 2017-04-10 | 2017-08-18 | 项栋才 | A kind of horizontal uniaxial orientation revolution impact combination driving formula engineering groover |
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| JP3297651B2 (en) * | 1999-06-01 | 2002-07-02 | 日本ベース株式会社 | Medium-duration construction method for ready-made concrete piles |
| US20080277167A1 (en) * | 2007-05-09 | 2008-11-13 | Marcel Viel | Dry drilling and core acquisition system |
| CN202945600U (en) * | 2012-12-02 | 2013-05-22 | 张永忠 | Double-shear-mode soil mixing wall (SMW) construction method pile machine |
| CN108560625B (en) * | 2018-06-22 | 2023-08-01 | 项栋才 | Suspension type multi-bit rotary-impact combined tunneling type engineering grooving machine |
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| CN105822228A (en) * | 2016-03-25 | 2016-08-03 | 柳超 | Double-speed variable-torque drill bit for drilling deep well |
| CN107059975A (en) * | 2017-04-10 | 2017-08-18 | 项栋才 | A kind of horizontal uniaxial orientation revolution impact combination driving formula engineering groover |
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