阅读说明：本技术 钻孔内壁加固结构及加固方法 (Borehole inner wall reinforcing structure and method ) 是由 李文鹏 谢勋 惠庆生 徐英俊 张辉能 于 2021-09-22 设计创作，主要内容包括：本申请涉及地质勘察钻探的领域,尤其是涉及一种钻孔内壁加固结构及加固方法,其中钻孔内壁加固结构包括沿钻孔轴线方向延伸的塑形件,塑形件与钻孔的内壁之间通过浇筑混凝土形成有加固层,塑形件上开设有用于填充混凝土的注浆口,塑形件的两端分别设有用于封堵加固层混凝土的封堵圈；塑形件包括具有弹性的塑形筒和多条肋板,封堵圈具有弹性且套设在塑形筒的外侧壁上,塑形筒内还设有扩撑组件。本申请的方案中,利用塑形件浇筑混凝土形成加固层加固钻孔内壁,同时塑形件可在钻孔内移动时收缩,以减小移动塑形件时的阻力,从而方便了施工人员的作业。(The application relates to the field of geological exploration and drilling, in particular to a drill hole inner wall reinforcing structure and a reinforcing method, wherein the drill hole inner wall reinforcing structure comprises a shaping piece extending along the axis direction of a drill hole, a reinforcing layer is formed between the shaping piece and the inner wall of the drill hole through concrete pouring, a grouting port for filling concrete is formed in the shaping piece, and two ends of the shaping piece are respectively provided with a plugging ring for plugging the concrete of the reinforcing layer; the shaping piece comprises an elastic shaping barrel and a plurality of rib plates, the plugging ring has elasticity and is sleeved on the outer side wall of the shaping barrel, and an expanding component is further arranged in the shaping barrel. In the scheme of this application, utilize moulding to pour concrete and form the back up coat and consolidate the drilling inner wall, mould the piece simultaneously and can shrink when removing in the drilling to resistance when reducing to remove the piece of moulding, thereby made things convenient for constructor's operation.)

1. The utility model provides a drilling inner wall reinforced structure which characterized in that: the drilling tool comprises a shaping piece (31) extending along the axis direction of a drilling hole (1), wherein the periphery of the shaping piece (31) is arranged at intervals with the inner wall of the drilling hole (1), a reinforcing layer (2) is formed between the shaping piece (31) and the inner wall of the drilling hole (1) through pouring concrete, a grouting opening (3111) for filling concrete is formed in the shaping piece (31), and two ends of the shaping piece (31) are respectively provided with a plugging ring (321) for plugging the concrete of the reinforcing layer (2); the shaping piece (31) comprises an elastic shaping barrel (311) and a plurality of rib plates (312) circumferentially arranged on the inner wall of the shaping barrel (311) at intervals, the plugging ring (321) has elasticity and is sleeved on the outer side wall of the shaping barrel (311), and the shaping barrel (311) is internally provided with a support expanding component (4) used for driving the plurality of rib plates (312) to be close to or away from each other simultaneously.

2. The borehole inner wall reinforcement structure according to claim 1, wherein: expand and prop subassembly (4) including wearing to locate in moulding section of thick bamboo (311) and fixed position's installation pole (41), two sets of connecting pieces (42) of having arranged along the axis direction interval of moulding section of thick bamboo (311) on installation pole (41), connecting piece (42) are established lantern ring (421) on installation pole (41) including sliding sleeve, it has traction lever (422) all to articulate between lantern ring (421) and every floor (312), two sets of connecting piece (42) structure mirror symmetry sets up, still be equipped with driving piece (43) that are used for driving two lantern rings (421) and are close to each other or keep away from each other on installation pole (41).

3. The borehole inner wall reinforcement structure according to claim 2, wherein: the driving piece (43) comprises a screw rod (431) rotatably connected to the mounting rod (41), the screw rod (431) penetrates through the two lantern rings (421) and is in threaded fit with the two lantern rings (421), the screw rod (431) is divided into two sections with opposite rotating directions, the two lantern rings (421) are in threaded fit with the two sections respectively, and a motor (432) used for rotating the screw rod (431) is further arranged on the mounting rod (41).

4. The borehole inner wall reinforcement structure according to claim 1, wherein: the shaping cylinder (311) and the inner wall of the drill hole (1) are circumferentially spaced to form a plurality of reinforcing ribs (5), and the reinforcing ribs (5) extend along the direction parallel to the axis of the drill hole (1).

5. The borehole inner wall reinforcement structure according to claim 4, wherein: many be connected with annular stirrup (6) between strengthening rib (5), stirrup (6) set up to a plurality of and arrange along the extending direction interval of strengthening rib (5).

6. The borehole inner wall reinforcement structure according to claim 5, wherein: two ends of the shaping barrel (311) are respectively provided with a positioning ring (322), the positioning rings (322) are located on one side opposite to the two plugging rings (321), the end part of each reinforcing rib (5) is connected with the positioning rings (322) on the same side, and each positioning ring (322) is connected with the adjacent plugging rings (321) respectively.

7. The borehole inner wall reinforcement structure according to claim 6, wherein: a plurality of joint grooves (3221) have been seted up to one side circumference interval that position circle (322) are close to adjacent shutoff circle (321), and one side that shutoff circle (321) are close to adjacent position circle (322) corresponds a plurality of joint grooves (3221) and is equipped with a plurality of joint portion (3213), and joint groove (3221) are along the radial extension of position circle (322) and the inner wall that communicates position circle (322), joint portion (3213) can cooperate with arbitrary joint groove (3221) joint.

8. The borehole inner wall reinforcement structure according to claim 1, wherein: an air cavity (3211) is arranged in the plugging ring (321), and an inflation inlet (3212) for inflating the air cavity (3211) is arranged on the plugging ring (321).

9. The method of reinforcing a borehole inner wall reinforcement structure according to any one of claims 2 to 8, characterized by: the method comprises the following steps:

s1, moving the shaping piece (31) to a position for reinforcing the inner wall of the drill hole (1), then moving the sleeve ring (421) through the driving piece (43), wherein the sleeve ring (421) drives the plurality of rib plates (312) to be far away from the mounting rod (41) through the traction rod (422) so as to expand and support the shaping cylinder (311) until the sealing rings (321) at the two ends of the shaping cylinder (311) are tightly attached to the inner wall of the drill hole (1);

s2, filling concrete into the interval position between the shaping cylinder (311) and the inner wall of the drill hole (1) through the grouting opening (3111), and forming a reinforcing layer (2) after the concrete is solidified;

s3, the driving piece (43) moves the lantern ring (421) reversely to drive the ribs (312) to approach the mounting rod (41) simultaneously, so that the shaping cylinder (311) contracts to be separated from the contact with the reinforcing layer (2), and the shaping piece (31) is pulled out of the drill hole (1).

Technical Field

The application relates to the field of geological exploration and drilling, in particular to a borehole inner wall reinforcing structure and a borehole inner wall reinforcing method.

Background

The drilling is a means of drilling a hole in a rock stratum by using mechanical equipment and taking out a rock core or a soil sample to know the geological condition, and is an exploration method of engineering geological exploration.

The stratum penetrated by drilling is generally complex, and the inner wall of a drill hole in a geological weak loose stratum is easy to destabilize and collapse, so that the drilling construction is seriously influenced. At present, a main method for reinforcing the inner wall of a drill hole is a slurry retaining wall and a steel sleeve retaining wall, and different reinforcing methods are adopted according to different working conditions. When the drilling hole penetrates through a complex stratum which is easy to collapse and leak, drilling needs to be continued, and when the mud retaining wall is ineffective, a steel sleeve retaining wall measure is adopted to prevent the upper hole wall from being unstably damaged.

The steel casing dado uses a casing diameter that is generally slightly larger than the diameter of the borehole to stabilize the position of the casing within the borehole. But because the great frictional force that exists between sleeve and the drilling inner wall, the resistance is great when the sleeve removes in the drilling, all wastes time and energy with the sleeve impress drilling and pull out the sleeve from drilling in, inconvenient constructor's operation.

Disclosure of Invention

For the inner wall of convenient constructor reinforcement drilling, this application provides a drilling inner wall reinforced structure.

On the one hand, the application provides a drilling inner wall reinforced structure adopts following technical scheme:

a drill hole inner wall reinforcing structure comprises a shaping piece extending along the axial direction of a drill hole, wherein the periphery of the shaping piece is arranged at intervals with the inner wall of the drill hole, a reinforcing layer is formed between the shaping piece and the inner wall of the drill hole through concrete pouring, a grouting opening used for filling concrete is formed in the shaping piece, and two ends of the shaping piece are respectively provided with a plugging ring used for plugging the concrete of the reinforcing layer; moulding including having elastic moulding section of thick bamboo and circumference interval and establishing many floor on moulding section of thick bamboo inner wall, the shutoff circle has elasticity and cover and establishes on moulding section of thick bamboo's lateral wall, still is equipped with in the moulding section of thick bamboo to be used for ordering about many floor and is close to each other or the expansion subassembly of keeping away from each other simultaneously.

Through adopting above-mentioned technical scheme, constructor pushes the position that needs to consolidate the inner wall in the drilling earlier with the plastic part, then makes many floors keep away from each other through expanding the subassembly, and the internal diameter of moulding section of thick bamboo will the grow, and two shutoff rings will also follow the deformation, and after the tight drilling inner wall is pasted to the shutoff ring, constructor begins to pour into the concrete into between moulding section of thick bamboo and the drilling inner wall through the slip casting mouth, treat behind the concrete solidification formation back up coat, the back up coat alright play the effect of consolidating the drilling inner wall.

Before in moulding entering drilling, a plurality of ribs of constructor control are close to the moulding section of thick bamboo of shrink recently each other for a moulding section of thick bamboo is less than the aperture of drilling, can greatly reduce the friction between a moulding section of thick bamboo and the drilling inner wall, and the position of consolidating the drilling inner wall can then be reachd more conveniently to the moulding, thereby has made things convenient for constructor's operation. After the reinforcing layer is formed, the constructor contracts the shaping cylinder through the expanding and supporting assembly so as to conveniently pull the shaping piece out of the drilled hole.

Preferably, expand and prop the subassembly including wearing to locate in moulding section of thick bamboo and fixed position's installation pole, two sets of connecting pieces of having arranged at the interval along the axis direction of moulding section of thick bamboo on the installation pole, the connecting piece includes that the slip cap establishes the lantern ring on the installation pole, all articulates between the lantern ring and every floor has the traction lever, and two sets of connecting piece structure mirror symmetry set up, still are equipped with on the installation pole and are used for ordering about two lantern rings and be close to each other or the driving piece of keeping away from each other.

Through adopting above-mentioned technical scheme, the lantern ring will drive many traction rods and rotate simultaneously when removing, and every traction rod will drive the floor that corresponds and remove. When making two lantern rings be close to each other or keep away from each other through the driving piece, the traction lever in two sets of connecting pieces can order from many floor jointly and keep away from the installation pole to reach the effect that expands and prop moulding section of thick bamboo, moulding section of thick bamboo then can contract and warp otherwise.

Preferably, the driving piece comprises a screw rod rotatably connected to the mounting rod, the screw rod penetrates through the two lantern rings and is in threaded fit with the two lantern rings, the screw rod is divided into two sections with opposite rotating directions, the two lantern rings are in threaded fit with the two sections respectively, and a motor used for rotating the screw rod is further arranged on the mounting rod.

Through adopting above-mentioned technical scheme, the rotatory back of motor drive screw rod, under the screw thread traction effect, two lantern rings will be close to each other or keep away from each other. After the screw is stopped rotating, under the effect of thread engagement with the screw, the position of the lantern ring on the mounting rod can be fixed, and the shaping barrel can be continuously in an expansion or contraction state.

Preferably, a plurality of reinforcing ribs are arranged between the shaping cylinder and the inner wall of the drill hole at intervals in the circumferential direction, and the reinforcing ribs extend in the direction parallel to the axis of the drill hole.

Through adopting above-mentioned technical scheme, the strengthening rib can strengthen the structural strength of back up coat, promotes the ability that the back up coat resisted side direction soil pressure.

Preferably, many be connected with annular stirrup between the strengthening rib, the stirrup sets up to a plurality ofly and arranges along the extending direction interval of strengthening rib.

Through adopting above-mentioned technical scheme, the stirrup is used for controlling the interval between the strengthening rib and the effect of contact strengthening rib for atress between the strengthening rib can be transmitted well through the stirrup, and back up coat, strengthening rib and stirrup become a atress wholly, and then can promote the reinforcement effect to the drilling inner wall.

Preferably, the both ends of moulding a section of thick bamboo are equipped with the position circle respectively, and the position circle is located two relative one sides of shutoff circle, and the tip of every strengthening rib all is connected with the position circle of homonymy, and every position circle is connected with adjacent shutoff circle respectively.

Through adopting above-mentioned technical scheme, at first the position circle plays the effect of every strengthening rib of preliminary positioning for moulding position, makes things convenient for follow-up connection stirrup. Secondly, the reinforcing rib enters the drill hole together with the shaping piece after being arranged on the shaping piece by the positioning ring, so that the thickness of a protective layer of the reinforcing rib in the reinforcing layer can be ensured, and the reinforcing rib is prevented from being exposed out of concrete of the reinforcing layer.

Preferably, the locating ring is close to one side circumference interval of adjacent shutoff circle and is equipped with a plurality of joint grooves, and one side that the shutoff circle is close to adjacent locating ring corresponds a plurality of joint grooves and is equipped with a plurality of joint portions, and the joint groove is along the radial extension of locating ring and the inner wall that communicates the locating ring, and joint portion can cooperate with arbitrary joint groove joint.

Through adopting above-mentioned technical scheme, when the installation strengthening rib, connect position circle and shutoff circle earlier, make every joint portion on the shutoff circle correspond the joint inslot that imbeds the position circle, then fix the strengthening rib between two position circles one by one to stabilize the holistic position of strengthening rib and stirrup after being connected. When the shaping cylinder is expanded, along with the expansion and deformation of the plugging ring, the embedding depth of each clamping part in the clamping groove is increased. After the reinforcing layer is formed, the shaping cylinder and the plugging rings are contracted, each clamping part gradually deviates from the corresponding embedded clamping groove until the two plugging rings are separated from the adjacent positioning rings, and the plastic part can be smoothly taken out of the drilled hole.

Preferably, an air cavity is arranged in the plugging ring, and an inflation inlet for inflating the air cavity is arranged on the plugging ring.

Through adopting above-mentioned technical scheme, close the back at shutoff circle and drilling inner wall subsides, can aerify to the gas cavity of shutoff circle through the inflation inlet, the shutoff circle can further the expansion deformation, and the gap that still exists between shutoff circle and the drilling inner wall then can further be sealed, promotes the shutoff effect of shutoff circle.

On the other hand, the application also provides a drilling inner wall reinforcing method, which is applied to the drilling inner wall reinforcing structure and adopts the following technical scheme:

s1, moving the shaping piece to a position for reinforcing the inner wall in the drill hole, then moving the lantern ring through the driving piece, and driving the plurality of ribbed plates to be far away from the mounting rod through the draw bar by the lantern ring so as to expand the shaping cylinder until the plugging rings at the two ends of the shaping cylinder are tightly attached to the inner wall of the drill hole;

s2, filling concrete into the interval position between the shaping cylinder and the inner wall of the drill hole through the grouting opening, and forming a reinforcing layer after the concrete is solidified;

s3, moving the lantern ring reversely through the driving piece, driving the plurality of ribbed plates to be close to the mounting rod at the same time, further enabling the shaping cylinder to contract to be separated from the contact with the reinforcing layer, and then pulling out the shaping piece for drilling.

Through adopting above-mentioned technical scheme, before the moulding piece that will be used for consolidating the drilling inner wall moves to in the drilling, the moulding section of thick bamboo that the shrink can warp makes it move in the drilling with the mode that breaks away from the contact with the drilling inner wall to reduce the resistance that the moulding piece removed in the drilling, make things convenient for constructor to push away the moulding piece to appointed position in the drilling. And then forming a reinforcing layer by pouring concrete, reinforcing the inner wall of the drill hole by means of the reinforcing layer, pulling the shaping part out of the drill hole, and making space for continuous drilling in the drill hole.

In summary, the present application includes at least one of the following beneficial technical effects:

through the arrangement of the plastic part and the plugging part, concrete can be poured at the position of the inner wall of the drill hole needing to be reinforced to form a reinforcing layer, the inner wall of the drill hole is reinforced by the reinforcing layer, and meanwhile, the plastic cylinder can be expanded and contracted to deform, so that a constructor can conveniently move the plastic part into the drill hole and take the plastic part out of the drill hole, and the constructor can conveniently reinforce the inner wall of the drill hole;

the reinforcing ribs and the stirrups are arranged, so that the structural strength of the reinforcing layer can be enhanced, and the capability of the reinforcing layer for resisting collapse of the inner wall of the drilled hole can be improved;

through the setting of position circle, can make things convenient for the installation of strengthening rib to and stabilize the whole position in the drilling after strengthening rib and stirrup are connected, the mode that joint groove and joint portion are connected is passed through with the shutoff circle to the position circle simultaneously, makes the shutoff circle can break away from with the position circle after the shrink, thereby conveniently pulls out in the drilling with the plastic component.

Drawings

FIG. 1 is a schematic cross-sectional view of a borehole wall reinforcement structure in an embodiment of the present application;

FIG. 2 is a schematic view showing the construction of a reinforcing component;

FIG. 3 is a schematic view showing the structure of the shaping member;

FIG. 4 is a schematic diagram showing the exploded structure of the closure;

FIG. 5 is a schematic view showing the construction of the expanding assembly;

figure 6 is a schematic view showing mainly the location of the reinforcing bars and stirrups on the shaped element and their mounting.

Description of reference numerals: 1. drilling; 2. a reinforcement layer; 3. a reinforcement assembly; 31. a plastic part; 311. a shaping cylinder; 3111. a grouting port; 312. a rib plate; 32. a blocking member; 321. plugging rings; 3211. an air cavity; 3212. an inflation inlet; 3213. a clamping part; 322. positioning rings; 3221. a clamping groove; 4. a support expanding assembly; 41. mounting a rod; 42. a connecting member; 421. a collar; 422. a draw bar; 43. a drive member; 431. a screw; 432. a motor; 5. reinforcing ribs; 6. and (5) hooping.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses drilling inner wall reinforced structure. Referring to fig. 1, the reinforcing structure includes a reinforcing layer 2 and a reinforcing component 3, the reinforcing layer 2 is formed by applying a circle of concrete to the inner wall of the borehole 1, and the reinforcing component 3 is used for forming a space for pouring the concrete from the inner wall of the borehole 1.

Referring to fig. 1, 2 and 3, the reinforcing component 3 includes a shaping member 31 and two sets of blocking members 32, the shaping member 31 extends along the axial direction of the drill hole 1, the axial line of the shaping member 31 is the same as the axial line of the drill hole 1, and the peripheral sides of the shaping member 31 are spaced from the inner wall of the drill hole 1. Two sets of shutoff pieces 32 overlap respectively and establish the both ends at moulding 31, and the lateral wall of shutoff piece 32 pastes tightly with the inner wall of drilling 1, and moulding 31 and drilling 1 inner wall and two sets of shutoff pieces 32 enclose the space that is used for pouring reinforcement layer 2 concrete jointly, and shutoff piece 32 is provided with the slip casting mouth 3111 that pours into the concrete into this space.

Remove the position that to bore hole 1 need consolidate the inner wall with strengthening subassembly 3, pour into the concrete through slip casting mouth 3111, moulding 31 acts as the moulding template of concrete, then forms the round reinforced layer 2 of the 1 inner wall of laminating drilling after the concrete solidifies, realizes the reinforcement to the 1 inner wall of drilling.

Referring to fig. 3, the shaping member 31 includes a shaping cylinder 311 and a plurality of ribs 312, the shaping cylinder 311 is made of an elastic material, the shaping cylinder 311 is coaxial with the drill hole 1, an outer side wall of the shaping cylinder 311 is spaced apart from an inner wall of the drill hole 1, and the grouting port 3111 is disposed on the shaping cylinder 311. The rib 312 is made of a hard material, a plurality of ribs 312 are circumferentially fixed on the inner side wall of the shaping barrel 311 at equal angular intervals, the length direction of the rib 312 is parallel to the axis of the shaping barrel 311, and the length of the rib 312 is the same as that of the shaping barrel 311.

Referring to fig. 4, the blocking member 32 includes a blocking ring 321 fixedly sleeved on the outer side wall of the shaping cylinder 311, the blocking member 32 is made of an elastic material, an air cavity 3211 is disposed in the blocking ring 321, an air charging port 3212 communicated with the air cavity 3211 is disposed on the blocking ring 321, and air can be pumped into the air cavity 3211 through the air charging port 3212.

Referring to fig. 5, the expanding component 4 is disposed in the shaping member 31, and the expanding component 4 is used for driving the plurality of ribs 312 to approach or move away from each other at the same time. The expanding component 4 comprises a mounting rod 41 and two groups of connecting pieces 42 arranged on the mounting rod 41, the two groups of connecting pieces 42 are arranged at intervals along the length direction of the mounting rod 41, and the mounting rod 41 is connected with the shaping piece 31 through the connecting pieces 42.

Referring to fig. 1 and 5, the mounting rod 41 is coaxial with the shaping member 31, the bottom end of the mounting rod 41 is inserted into the shaping cylinder 311, and the top end of the mounting rod 41 is located outside the hole of the drilling hole 1 for fixing the position of the mounting rod 41.

Referring to fig. 5, two sets of connecting members 42 are located in the shaping member 31, the two sets of connecting members 42 are arranged in mirror symmetry with respect to a plane perpendicular to the axis of the shaping member 31, and the distances between the two sets of connecting members 42 and the end faces of the shaping member 31 adjacent to each other are the same. The connecting pieces 42 comprise sleeve rings 421 which are sleeved on the mounting rods 41 in a sliding mode, a plurality of traction rods 422 are hinged to the sleeve rings 421, the plurality of traction rods 422 correspond to the plurality of ribbed plates 312 one by one, the traction rods 422 extend towards the direction far away from the other group of connecting pieces 42 in an inclined mode and are hinged to the corresponding ribbed plates 312, and the rotating axes of the two ends of each traction rod 422 are parallel. When the sleeve ring 421 slides on the mounting rod 41, one end of the traction rod 422 will be driven to move, and the other end of the traction rod 422 will drive the corresponding rib plate 312 to move.

When the two rings 421 approach each other, the plurality of pulling rods 422 will be away from the mounting rod 41 at the same time, the portion of the shaping cylinder 311 between each two adjacent ribs 312 will be stretched, the shaping cylinder 311 together with the two blocking rings 321 will be expanded at the same time, the inner diameter of the shaping member 31 will be increased, and conversely, the inner diameter of the shaping member 31 will be decreased. Before the shaping member 31 is fed into the bore hole 1, the gathering rib 312 shrinks the shaping cylinder 311 to be smaller than the bore diameter of the bore hole 1, so that the resistance of the shaping member 31 during moving in the bore hole 1 can be greatly reduced. After the shaping piece 31 reaches the position of the drill hole 1 where the inner wall needs to be reinforced, the shaping piece 31 is expanded until the plugging ring 321 is tightly attached to the inner wall of the drill hole 1, and then the concrete can be input between the shaping piece 31 and the inner wall of the drill hole 1.

After the sealing ring 321 is tightly attached to the inner wall of the drill hole 1, gas can be pumped into the gas cavity 3211 of the sealing ring 321 at this time, and the sealing ring 321 can further expand and deform, so that a gap still existing between the sealing ring 321 and the inner wall of the drill hole 1 can be sealed.

Referring to fig. 5, the expanding assembly 4 further comprises a driving member 43, and the driving member 43 is used for driving the two collars 421 to approach to or move away from each other. The driving member 43 includes a screw 431 rotatably connected to the mounting rod 41, the screw 431 is parallel to the mounting rod 41, and the screw 431 passes through the two collars 421 and is threadedly engaged with the two collars 421. The screw 431 is divided into two segments with opposite rotation directions, and the two lantern rings 421 are respectively in threaded fit with the two segments. A motor 432 for rotating the screw 431 is further fixed to the mounting rod 41, and an output shaft of the motor 432 is coaxially connected to the screw 431.

When the motor 432 is activated to rotate the screw 431, the two rings 421 will move toward or away from each other. After the screw 431 stops rotating, due to the thread engagement between the collar 421 and the screw 431, the position of the collar 421 on the mounting rod 41 will be fixed, the distance between the rib 312 and the mounting rod 41 will be unchanged, and the blocking ring 321 can continuously cling to the inner wall of the drill hole 1, or the shaping barrel 311 is kept in a continuously contracted state.

Referring to fig. 1 and 6, in order to enhance the structural strength of the reinforcing layer 2, a plurality of reinforcing ribs 5 are further arranged in the reinforcing layer 2, the plurality of reinforcing ribs 5 are arranged at equal angular intervals in the circumferential direction around the axis of the drill hole 1, and the reinforcing ribs 5 extend in a direction parallel to the axis of the drill hole 1.

Referring to fig. 6, the reinforcing ribs 5 are welded to each other by the annular stirrups 6, so that the stress between the reinforcing ribs 5 can be transmitted well through the stirrups 6. Stirrup 6 sets up to a plurality of and arranges along the equidistant interval of the length direction of strengthening rib 5, and strengthening rib 5 is located stirrup 6's inboard, and stirrup 6's external diameter is less than or equal to the aperture of drilling 1, and this embodiment uses stirrup 6 external diameter to be less than 1 aperture of drilling as an example to reduce the friction between stirrup 6 and the 1 inner wall of drilling.

Referring to fig. 4 and 6, the plugging member 32 further includes a positioning ring 322 disposed on the shaping barrel 311, and the positioning ring 322 is disposed on a side of the plugging ring 321 close to another group of plugging members 32. One side of the positioning ring 322 is connected with the adjacent plugging ring 321, and the other side is connected with the adjacent end part of each reinforcing rib 5 in an inserting way.

Referring to fig. 1 and 4, the outer diameter of the cage 322 is equal to the bore diameter of the bore 1 to reduce friction between the cage 322 and the inner wall of the bore 1. In addition, the thickness of the positioning ring 322 in the radial direction of the drill hole 1 is smaller than or equal to the thickness of the blocking ring 321 when not deformed, and the embodiment takes the case that the thicknesses of the two are equal.

The reinforcing ribs 5 together with the stirrups 6 are introduced into the borehole 1 together with the shaping element 31 by being mounted on the shaping element 31. Before the shaping element 31 is introduced into the borehole 1, the reinforcing ribs 5 are arranged on the circumferential side of the shaping element 31. The two ends of the reinforcing ribs 5 are respectively connected with a positioning ring 322 in an inserting manner, the positioning ring 322 can be used for positioning the position of each reinforcing rib 5 relative to the plastic part 31, and then the stirrups 6 and the reinforcing ribs 5 are connected.

Referring to fig. 4, a plurality of clamping grooves 3221 are formed in a side wall of the positioning ring 322 close to one side of the adjacent blocking ring 321, the plurality of clamping grooves 3221 are circumferentially arranged around an axis of the positioning ring 322 at equal angular intervals, and each clamping groove 3221 extends along a radial direction of the positioning ring 322 and is communicated with an inner side wall of the positioning ring 322. One side of the blocking ring 321 close to the adjacent positioning ring 322 is fixedly connected with a plurality of clamping portions 3213, the length of each clamping portion 3213 extends along the radial direction of the blocking ring 321, and the cross section of each clamping portion 3213 cut in the direction perpendicular to the extending direction is in a T shape. The plurality of clamping portions 3213 are arranged around the axis of the blocking ring 321 at equal angular intervals, the plurality of clamping portions 3213 correspond to the plurality of clamping grooves 3221 one to one, and each clamping portion 3213 can be slidably inserted into any one of the clamping grooves 3221 from the inner side of the positioning ring 322.

When the positioning ring 322 and the plugging ring 321 are connected, the plastic part 31 is contracted to reduce the diameter of the plugging ring 321, after the ring 322 to be positioned is sleeved on the plastic part 31, the position of the positioning ring 322 is adjusted to enable each clamping groove 3221 to correspond to one clamping portion 3213, and then the plugging ring 321 is expanded to a proper degree, so that the clamping portions 3213 are embedded into the corresponding clamping grooves 3221, and the effect of temporarily connecting the positioning ring 322 and the plugging ring 321 is achieved. And the expansion degree of the plugging ring 321 is limited, so that the outer diameter of the plugging ring 321 is still smaller than the aperture of the drill hole 1, and when the plastic part 31 enters the drill hole 1, no large friction exists between the plugging ring 321 and the inner wall of the drill hole 1.

When the position of the plastic member 31 and the blocking ring 321 for reinforcing the inner wall in the drill hole 1 is expanded again, the depth of each clip portion 3213 on the blocking ring 321 inserted into the corresponding clip groove 3221 will increase until the blocking ring 321 abuts against the inner wall of the drill hole 1. After the concrete is solidified, the position of the positioning ring 322 is fixed by the reinforcing rib 5, the blocking ring 321 is shrunk by shrinking the plastic part 31, each clamping portion 3213 on the blocking ring 321 is separated from the corresponding clamping groove 3221, and then the plastic part 31 can be taken out of the drill hole 1.

The implementation principle of the embodiment of the application is as follows: before sending into shaping piece 31 in the drilling 1, drawing close floor 312 to installation rod 41 through expanding the subassembly 4 and contracting shaping section of thick bamboo 311, make shaping section of thick bamboo 311 be less than the aperture of drilling 1, shaping section of thick bamboo 311 resistance that removes in drilling 1 alright greatly reduce, and then constructor can move shaping piece 31 to the position that drilling 1 needs to consolidate the inner wall conveniently.

After the shaping piece 31 reaches the position of the inner wall of the drill hole 1 needing to be reinforced, the shaping cylinder 311 is expanded until the sealing ring 321 is tightly attached to the inner wall of the drill hole 1, and at the moment, concrete is filled into the space between the shaping cylinder 311 and the inner wall of the drill hole 1 through the grouting port 3111 on the shaping cylinder 311 to form a reinforcing layer 2.

After the concrete of the reinforcing layer 2 has set, the shaping element 31 is again contracted, so that the shaping cylinder 311 is out of contact with the concrete of the reinforcing layer 2, and then the mounting rod 41 is pulled to pull the shaping element 31 out of the borehole 1, so that the drilling exploration can be continued.

The application also provides a method for reinforcing the inner wall of the drilled hole.

A reinforcing method based on the drilling inner wall reinforcing structure comprises the following steps:

s1, determining the reinforcing length of the inner wall of the drill hole 1, and preparing the shaping piece 31 and the reinforcing rib 5 with corresponding lengths;

s2, mounting the positioning rings 322, adjusting the diameter of the plugging ring 321 to enable the positioning rings 322 to be sleeved on the plastic part 31, then sleeving the two positioning rings 322 on the plastic part 31, expanding the plugging ring 321 to enable each clamping portion 3213 on the plugging ring 321 to be correspondingly embedded into one clamping groove 3221, and completing the connection between the positioning rings 322 and the plugging ring 321;

s3, installing the reinforcing ribs 5 and the stirrups 6, fixing the reinforcing ribs 5 between the two positioning rings 322 one by one in a manner of inserting and connecting the reinforcing ribs 5 with the positioning rings 322, sleeving the stirrups 6 on the peripheries of the reinforcing ribs 5 one by one, and welding and connecting the stirrups 6 and the reinforcing ribs 5 one by one;

s4, firstly, coating a release agent on the shaping cylinder 311 and the plugging ring 321, then moving the shaping piece 31 to the position of the inner wall reinforcement in the drill hole 1, and then fixing the part of the mounting rod 41 left outside the drill hole 1 so as to fix the position of the shaping piece 31 in the drill hole 1;

s5, starting a motor 432 to rotate a screw rod 431, enabling two sleeve rings 421 to be far away from each other, enabling each sleeve to drive a traction rod 422 connected with each sleeve, pushing a plurality of rib plates 312 to be far away from an installation rod 41 at the same time, further expanding the shaping cylinder 311 and the plugging ring 321 until the two plugging rings 321 are attached to the inner wall of the drill hole 1, and pumping gas into the plugging rings 321 to further deform and expand the plugging rings 321 so as to seal gaps still existing between the plugging rings 321 and the inner wall of the drill hole 1;

s6, pumping concrete into the space between the shaping cylinder 311 and the inner wall of the drill hole 1 through the grouting port 3111, and waiting for the concrete to solidify to form a reinforcing layer 2;

s7, after the concrete in the reinforcing layer 2 is solidified, the motor 432 is started to output in the reverse direction, so that the shaping cylinder 311 contracts until the blocking ring 321 at the bottom end of the shaping member 31 can pass through the reinforcing layer 2, and then the shaping member 31 is pulled out of the drill hole 1 through the mounting rod 41.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.