CN2234463Y

CN2234463Y - Vibration grouting device

Info

Publication number: CN2234463Y
Application number: CN 95215041
Authority: CN
Inventors: 向余庆; 喻志平
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-16
Filing date: 1995-06-16
Publication date: 1996-09-04
Anticipated expiration: 2005-06-16

Abstract

The utility model belongs to a foundation grouting device, particularly a foundation grouting device for reservoir dam foundation which is sand pebble layers. The device comprises a drill rod 1, a preliminary embedded hole pipe 2, a hole sealing device and a drill bit 3. The utility model is characterized in that the utility model at least also comprises a grouting vibrator and a slurry jetting back valve which are connected with the lower end of the drill rod 1 in turn, and the drill bit 3 is conical. The grouting device can simultaneously drill holes and grout slurry, and the work efficiency is improved. The utility model not only utilizes grouting pressure in the grouting process, but also increases vibration to improve grouting quality. Therefore, under the same grouting materials and the same quality standards, the utility model can decrease the row numbers of the grouting holes. Therefore, the engineering work amount is decreased, and the construction cost is reduced.

Description

The vibration provisions for grouting

The utility model belongs to the foundation grouting device, the foundation grouting device that to relate in particular to a kind of reservoir dam foundation be sand pebble layer.

When building reservoir dam, be sand pebble layer, just it should be removed that as removing engineering easy-clear or remove not thoroughly too greatly and not, just must carry out watertight grouting to the dam foundation and handle, the construction seepage proof curtain is in case the storehouse seepage as the dam foundation.The method that above-mentioned dam foundation grouting is adopted has cycle grouting, sleeve grouting and floral tube grouting etc. at present, these method and apparatus have the following disadvantages in grouting construction: one, can only the good grout hole of subdrilling in filling process, then drilling tool is proposed from the hole, put into the hole grouting of pressurizeing irritating tool again, that is to say that boring and grouting carries out step by step.They are two years old, mud enters sand pebble layer Based Quality quality entirely how in the grouting pressure parameter, and only depended on pressure in the ordinary course of things the diffusion of mud in the dam foundation be uneven, thereby in work progress, adopt often and beat how row's grout holes are in the milk, could guarantee the barrier performance of curtain, grout hole grouting works amount is big, institute's consumption material is many more and arrange, and brings the cost height to engineering.

For this reason, it is that sand pebble layer is built seepage proof curtain that the purpose of this utility model provides a kind of reservoir dam foundation that is applicable to, has the vibration provisions for grouting of the grouting while holing.

The technical solution of the utility model is as follows: whole provisions for grouting improves on existing batholith cementation Equipment Foundations and forms, it includes drilling rod, pre-buried orifice tube, aperture sealer, drill bit, it is characterized in that at least also including the grouting vibrator of installing successively in the drilling rod lower end and penetrates the slurry non retern valve.Said grouting vibrator is to be made of eccentric vibration block, vibrator shell and inlet pipe, and the grouting vibrator is installed in the drilling rod lower end, and the grouting vibrator produces vibration when rotating; Penetrating the slurry non retern valve is to be made of valve body, valve ball, compression spring and countersink head screw, is processed with slurry intake channel in valve body, penetrates the slurry hole, penetrates slurry non retern valve upper end and is connected with the grouting vibrator, and the lower end is equipped with drill bit; Drill bit is taper.When drilling rod, grouting vibrator with after penetrating slurry non retern valve installing successively, slurry intake channel is a up/down perforation.Provisions for grouting externally equipment slewing drilling machine vertical shaft drilling rod rotation drives down, drilling rod, grouting vibrator, penetrate slurry non retern valve and drill bit and rotate together, and the axial compression and the vibrator generation vibration of being in the milk also are delivered to drill bit, and the vibrator that is in the milk equally produces vibration and also is delivered in the grout hole sand pebble layer dam foundation on every side.Be input to mud in the vertical shaft drilling rod under grouting pressure by grouting machine, through drilling rod, grouting vibrator with penetrate the slurry intake channel of slurry non retern valve, be circulated into the dam foundation from penetrating the slurry hole, and the sandy gravel dam foundation that is vibrated more can absorb the mud that pours into fully.

Advantage of the present utility model is: do not need to pull up again operation such as drilling tool and taking-up core in the hole, but the grouting while holing has reduced the aided process time, improves work efficiency.Only do not utilize the grouting pressure parameter in filling process, also increased vibration and be used for improving grouting quality, the quality of single like this grout hole improves greatly, under same grouting agent and quality specifications, can reduce row's number of grout hole, thereby reduce engineering quantity, reduce construction costs.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Figure one is the structural representation of the utility model vibration provisions for grouting;

Figure two is the axial positive view of the provisions for grouting of vibration shown in the figure one;

Figure three is the transverse sectional view of the provisions for grouting of vibration shown in the figure one at the A-A place;

Figure four starches the non retern valve amplification view for penetrating in the provisions for grouting of vibration shown in the figure one.

As shown be a kind of embodiment of the present utility model, whole provisions for grouting is by drilling rod 1, pre-buried orifice tube 2, aperture sealer, grouting vibrator, penetrates the slurry non retern valve and taper bit 3 constitutes.

Wherein drilling rod 1 is commercially available serial geology steel tube, and interior sky is made slurry intake channel, and two ends are processed with external screw thread, drilling rod can be connected lengthening with drilling rod by latching connector 4.

The aperture sealer is divided into two parts up and down, the top that there are gland 5, stuffing box 6 in top, end pulp material 7 and flange socket 9, there is bottom, tube connector 10 and the return pipe 11 of rubber rubber cushion 8, flange socket 9 lower part, two parts connect by flange socket 9 up and down, at flange socket 9 and gland 5 places bolt 12 are arranged.

The grouting vibrator is made of eccentric vibration block 13, vibrator shell 14 and inlet pipe 15, two ends be processed with internal thread at eccentric vibration block about in the of 13, the semicircle hollow cylinder is processed at the middle part, be welded with inlet pipe 15 at the semicircle hollow position, vibrator shell 14 is a cylindrical shape, be enclosed within eccentric vibration block 13 outside screw threads for fastening, inlet pipe 15 is made slurry intake channel and is used.

Penetrating the slurry non retern valve is made of valve body 16, valve ball 17, compression spring 18, countersink head screw 19.Valve body is processed with the nipple 20 that is threaded be in the milk vibrator and drill bit 3 in two ends about in the of 16, is processed with slurry intake channel in the valve body, penetrates slurry hole 21 and spring screw 22.Valve ball 17 and compression spring 18 are put into spring screw 22 successively, fastening with countersink head screw 19.

The profile of drill bit 3 is that cylinder adds taper shape, and the place is processed with internal thread in the axle center of cylinder, and symmetry is inlaid with four hard alloy cutters 23 in the cone four directions, by internal thread with penetrate the nipple of starching on the non retern valve 20 and be connected.

The grouting vibrator, penetrate 3 three parts of slurry non retern valve and drill bit and install and be about 2 meters after being connected.

During installation, earlier pre-buried orifice tube 2 is fixed in the ballast concrete on the grout hole, tube connector 10 with sealer lower part, aperture is threaded with pre-buried orifice tube 2 again, then with drilling rod 1, grouting vibrator, penetrate slurry non retern valve and drill bit 3 and be threaded successively after, put into grout hole from tube connector 10, the top with the aperture sealer is enclosed within on the drilling rod 1 at last, and is fastening with bolt 12, seal, the mud of avoiding pouring in the hole is emerged from the aperture.

During work, externally 24 rotations of equipment slewing drilling machine vertical shaft drilling rod drive down, drilling rod 1 and the grouting vibrator that connects successively, penetrate the slurry non retern valve, drill bit 3 rotates together, in rotation because the eccentric vibration block 13 of grouting on the vibrator is the semicircle hollow cylinder, rotate very uneven, thereby generation vibration, and be delivered to drill bit 3 through penetrating the slurry non retern valve with this vibration with from the axial compression of drilling rod, loose sandy gravel has certain degree of porosity, axial compression at taper bit 3, under the effect of torque and vibration force, sandy gravel just separates around hole wall, and drill bit constantly creeps into.In addition mud externally the grouting pressure effect of grouting machine down through drilling rod 1, grouting vibrator and penetrate slurry intake channel on the slurry non retern valve, the valve ball 17 on the slurry non retern valve is penetrated in promotion, mud penetrates from penetrate slurry hole 21, be circulated in the sandy gravel dam foundation, under the vibration of grouting vibrator, the sandy gravel dam foundation is on every side also vibrated, thereby absorbent slurry more fully.After outside grouting pressure disappeared, valve ball 17 will be blocked slurry intake channel downwards under the promotion of compression spring 18, and sand grains produces the plugging accident because of feedback in mud in the dam foundation and the hole thereby avoid being circulated into.

Claims

1, a kind of vibration provisions for grouting, it includes drilling rod (1), pre-buried orifice tube (2), aperture sealer, drill bit (3), it is characterized in that in drilling rod (1) lower end the grouting vibrator being installed successively and penetrating the slurry non retern valve.

2, vibration provisions for grouting according to claim 1, it is characterized in that said grouting vibrator is to be made of eccentric vibration block (13), vibrator shell (14) and inlet pipe (15), said eccentric vibration block (13) is processed with internal thread in two ends up and down, the semicircle hollow cylinder is processed at the middle part, be welded with inlet pipe (15) at the semicircle hollow position, vibrator shell (14) is a cylindrical shape, it is fastening with screw to be enclosed within eccentric vibration block (13) outside, and internal thread and drilling rod (1) the lower end external screw thread by the upper end is connected.

3, vibration provisions for grouting according to claim 1, it is characterized in that the said slurry non retern valve of penetrating is made of valve body (16), valve ball (17), compression spring (18), countersink head screw (19), be processed with the nipple (20) that is threaded with the internal thread and the drill bit (3) of grouting vibrator lower end respectively in two ends up and down at valve body (16), valve body is processed with slurry intake channel in (16), penetrates slurry hole (21) and spring screw (22), valve ball (17) and compression spring (18) are put into spring screw (22) successively, fastening with countersink head screw (19).

4, vibration provisions for grouting according to claim 1, it is characterized in that said drill bit (3) is a taper bit, its profile is that cylinder adds taper shape, place, axle center at cylinder is processed with internal thread, be inlaid with hard alloy cutter (23) in the cone four directions, by internal thread with penetrate the nipple (20) of slurry on the non retern valve and be connected.