CN206328759U - Extra large work barge grouting equipment - Google Patents

Abstract

The utility model discloses a kind of extra large work barge grouting equipment, including：The barge platform on barge is ridden upon, multiple pilot holes are opened up thereon；Isolated tube, divides into the place hole to be drilled of extra large work block ground mass bed along pilot hole, the seawater above place hole to be drilled is isolated with surrounding seawater；Drilling equipment, its drilling tool is located in isolated tube under being used for, to utilize pipe-following drilling in the riprap layer of extra large work block ground mass bed once into drilling, and passes through the synchronous sleeve pipe formation operation hole for transferring to drill hole；Grouting material, with the Grout-jetting pipe being located at under in operation hole, is filled into the gap of riprap layer by provisions for grouting via Grout-jetting pipe.Equipment of the present utility model, the seawater of top hole to be drilled is isolated with surrounding seawater using isolated tube, accurately control drilling hole position, monitoring in real time and control are carried out to the grouting pressure of grouting liquid, injection rate, serum density, ensure grouting quality and construction speed, efficiency of construction is improved, raw material usage amount is effectively reduced, it is cost-effective.

Description

Extra large work barge grouting equipment

Technical field

The utility model is related to Hydraulic and Hydro-Power Engineering field, more particularly to a kind of extra large work barge grouting equipment.

Background technology

With the fast development of domestic water conservancy construction of hydropower plant, process range, depth, earth formation present complicate, Diversification.In the prior art, when the extra large work block ground mass bed crop to port berth is reinforced, frequently with the place of pipe-following drilling Reason method directly drills and grouting to bedding, and the port berth of this method processing gravity type box structure has following defect： When being drilled to extra large work block ground mass bed, drilling tool can be influenceed to drift around in hole position point by seawater fluctuation, it is impossible to ensure hole The precision of position and the depth of drilling, cause follow-up grouting quality reduction, the increase of slurry amount, and cost is improved, and progress is delayed.

Utility model content

The purpose of this utility model is exactly that there is provided a kind of extra large work barge filling in order to overcome the problem of above-mentioned prior art is present Equipment is starched, the seawater of top hole to be drilled is isolated with surrounding seawater using isolated tube, drilling hole position is accurately controlled, to grouting liquid Grouting pressure, injection rate, serum density carry out in real time monitoring with control, it is ensured that grouting quality and construction speed, improve construction Efficiency, effectively reduces raw material usage amount, cost-effective.

In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of extra large work barge grouting equipment, including： The barge platform on barge is ridden upon, multiple pilot holes are opened up thereon；Suspender and the isolated tube hung using suspender, isolated tube are suitable Pilot hole to divide into the place hole to be drilled of extra large work block ground mass bed, so as to which the seawater above place hole to be drilled is isolated with surrounding seawater； Drilling equipment on barge platform, its drilling tool is located in isolated tube under being used for, to utilize pipe-following drilling in extra large work block The riprap layer of ground mass bed passes through the synchronous sleeve pipe formation operation hole for transferring to drill hole once into drilling；It is flat installed in barge Provisions for grouting on platform, with the Grout-jetting pipe being located at under in operation hole, riprap layer is filled into via Grout-jetting pipe by grouting material Gap in.

Wherein, the height of the isolated tube is more than the jackstone layer surface of the barge platform to the extra large work block ground mass bed Vertical height.

Wherein, the height of the isolated tube be more than the barge be located at peak level when, barge platform to the extra large work block The vertical height of the jackstone layer surface of ground mass bed.

Wherein, the internal diameter of the isolated tube is more than the external diameter of described sleeve pipe.

Wherein, the internal diameter of the pilot hole is more than the external diameter of the isolated tube.

Wherein, the provisions for grouting includes：Mixer with slurry；The flow inlet being connected with mixer with slurry；With stirring with slurry The grouting pump of machine connection；The pulp-inlet pipe and return pipe being connected with grouting pump；For the Grout-jetting pipe being placed in sleeve pipe；For that will penetrate The packer that slurry pipe is connected with pulp-inlet pipe；The grouting automatic monitoring system being connected respectively with mixer with slurry and grouting pump.

Further, the provisions for grouting also includes：Being used at the close grout hole of return pipe adjusts grouting The high voltage adjusting gate valve of pressure；Being used on pulp-inlet pipe or Grout-jetting pipe prevents that the grouting liquid in Grout-jetting pipe from flowing backwards back into slurry The check gate valve of pipe.

Further, the provisions for grouting also includes：The grouting data handling system being connected with grouting automatic monitoring system.

Wherein, the grouting automatic monitoring system includes：Installed in pulp-inlet pipe at the aperture of grout hole Pressure gauge and pressure sensor；Pressure gauge at grouting pump；Flow between grouting pump and mixer with slurry Sensor；The displacement transducer of detection drilling depth on drilling tool；With pressure sensor, flow sensor, with slurry stir Mix machine, the grouting automatic recorder that displacement transducer is connected respectively, for grouting when pressure, injection rate, the density of grouting liquid, stream Amount etc. monitor and control in real time.

Wherein, the drilling equipment includes：For being drilled with the down-the-hole drill equipment of inside and outside round and for being drilled with interstitial hole Geological core rig equipment.

The beneficial effects of the utility model embody in the following areas：

1st, the utility model is isolated the seawater above place hole to be drilled with surrounding seawater using isolated tube, so as in isolated tube It is interior to form the static hydrostatic region of relatively extraneous flowing seawater so that the fluctuation of extraneous seawater is not interfered with isolated tube Portion.

2nd, it is located in isolated tube and is drilled in isolated tube under drilling tool of the present utility model so that drilling hole position is with setting Deviation is small between counting hole position, is constructed beneficial to follow-up well cementing, improves the construction period.

3rd, the utility model selects suitable drilling tool collocation to use, realizes and bored with pipe according to strata condition and drilling depth Enter one-step pore-creating, be greatly improved the construction effect of pipe-following drilling, effectively reduce or remit hole therefore the generation of rate, reduce construction cost, Ensure that construction is smoothly completed.

4th, the utility model carries out compound grouting according to stratum characteristic in the grouting liquid from different parameters, and monitors at any time Control each strengthening motoring, it is ensured that grouting quality, effectively reduce raw material usage amount, save construction cost, reduce construction costs；

5th, the utility model can precisely differentiate the seepage feelings of construction part earth formation using segmentation jam grouting technique Condition, manufacture bases is provided accurately to handle the position well.

6th, barge of the present utility model can be firmly secured on sea in operation, be easy to drilling, cementing operations It is smoothed out.

Brief description of the drawings

Fig. 1 is the section of quay wall figure reinforced using the utility model equipment；

Fig. 2 is that barge fixes schematic diagram；

Fig. 3 is cantilever construction platform plane layout drawing；

Fig. 4 is cantilever construction platform front elevation；

Fig. 5 is cantilever construction platform sectional drawing；

Fig. 6 is the structural representation of tripod；

Fig. 7 is outer round drill-pouring position view；

Fig. 8 is interior round drill-pouring position view；

Fig. 9 is that upper lower platform and slope pour mould bag schematic diagram after the dismounting of inverted trapezoidal region unit stone is cleared up；

Figure 10 is interstitial hole drill-pouring position view；

Figure 11 is inside and outside round drilling hole position layout drawing；

Figure 12 is interstitial hole drilling hole position layout drawing；

Figure 13 is the schematic diagram for dividing into guide pipe；

Figure 14 is pipe-following drilling and is in the milk to the schematic diagram at the top of grout hole first paragraph；

Figure 15 is in the milk to the schematic diagram at the top of grout hole second segment；

Figure 16 is schematic diagram of the grouting to whole grout hole；

Figure 17 is the sketch of provisions for grouting of the present utility model and the system connection of grouting automatic monitoring；

Figure 18 is means for supporting reinforcement steel bar laying schematic diagram；

Figure 19 is that mold-bagged concrete pours schematic diagram；

The cross-sectional view of isolated tube, sleeve pipe and Grout-jetting pipe position relationship when Figure 20 is the utility model well cementing.

Embodiment

The utility model provides a kind of extra large work barge grouting equipment, including：The barge platform on barge is ridden upon, is opened thereon If multiple pilot holes；Suspender and the isolated tube hung using suspender, isolated tube are divided into extra large work block ground mass bed along pilot hole Place hole to be drilled, so as to which the seawater above place hole to be drilled is isolated with surrounding seawater；Drilling equipment on barge platform, its Drilling tool is located in isolated tube under being used for, and to utilize pipe-following drilling in the riprap layer of extra large work block ground mass bed once into drilling, and is led to Cross the synchronous sleeve pipe formation operation hole for transferring to drill hole；Provisions for grouting on barge platform, with being located at under Grouting material, is filled into the gap of riprap layer by the Grout-jetting pipe in operation hole via Grout-jetting pipe.

Wherein, the height of isolated tube is more than barge platform to the vertical height of the jackstone layer surface of extra large work block ground mass bed, excellent Choosing, the height of isolated tube is more than barge when being located at peak level, the jackstone layer surface of barge platform to extra large work block ground mass bed Vertical height.

Wherein, the internal diameter of isolated tube is more than the external diameter of sleeve pipe, and the internal diameter of pilot hole is more than the external diameter of isolated tube.

Wherein, provisions for grouting includes：Mixer 30 with slurry；The flow inlet 31 being connected with mixer 30 with slurry；Stirred with slurry Mix the grouting pump 33 of the connection of machine 30；The pulp-inlet pipe 34 being connected with grouting pump 33 and return pipe 41；For being placed in penetrating in sleeve pipe Starch pipe 29；For the packer 40 for being connected Grout-jetting pipe 29 with pulp-inlet pipe 34；Connect respectively with mixer 30 with slurry and grouting pump 33 The grouting automatic monitoring system connect；It is connected and matching used grouting data handling system with grouting automatic monitoring system； And, being used at the close grout hole of return pipe 41 adjusts the high voltage adjusting gate valve 37 of grouting pressure；Be arranged on into Being used on slurry pipe 34 or Grout-jetting pipe 29 prevents that the grouting liquid in Grout-jetting pipe from flowing back to the check gate valve 38 of pulp-inlet pipe.It is in the milk Grout-jetting pipe can use prior art sleeving valve tube assembly.

Wherein, grouting automatic monitoring system includes：Installed in the pressure at the aperture of grout hole of pulp-inlet pipe 34 Power table 35 and pressure sensor 36；Pressure gauge 43 at grouting pump 33 (is set every slurry dress between each pressure gauge and pipeline Put)；Flow sensor 32 between grouting pump 33 and mixer with slurry 30；Detection drilling depth on drilling tool Displacement transducer 44；It is connected respectively with pressure sensor 36, flow sensor 32, mixer with slurry 30, displacement transducer 44 Grouting automatic recorder 42, pressure, injection rate, the density of grouting liquid, flow etc. during for grouting monitor and control in real time System.

Wherein, drilling equipment of the present utility model includes two kinds, and a kind of is the down-the-hole drill machine for being drilled with inside and outside round Tool, another is the geological core rig equipment for being drilled with interstitial hole.The drilling machine of prior art can be used.

In addition, equipment of the present utility model also includes other servicing units, such as lifting the loop wheel machine of isolated tube, for solid Determine fixing device of isolated tube etc..

Below, with use equipment of the present utility model to carrying out strengthening construction with port berth crop as shown in Figure 1 Exemplified by, barge grouting method of the present utility model is described.

Wherein, port berth as shown in Figure 1 is gravity type box structure, i.e. to be some above extra large work block ground mass bed 1 Closed square 2, the relieving slab 3 of low level is installed on closed square 2, breastwork 4 is poured into by concrete on relieving slab 3.The code Head rear is the rib body block stone backfilled and the stone 6 that cuts into a mountain, and the front rail of bridge type coal grab-unloader is arranged on the breastwork 4 of harbour, rear rail On the track girder supported by Punching Borehole Cast-in-place Concrete Pile.Bollard 7 is set in front of harbour, the spacing of bollard 7 for 20m~ 30m.Harbour uses drum-type rubber fender by ship fender 5, and the spacing of rubber fender is determined according to actual conditions, can be such as spaced 16.0m。

When being reinforced to the harbour crop, first carry out and prepare before construction, such as：Prepare construction water and electricity consumption, rationally Mixing plant is arranged, wherein, the utility model supplies slurry mode using concentrated compactness, using sending stock pump to carry out sending slurry, sets PVC pipeline Along quayside along straight laying, one valve of (such as 30m) setting, convenient to be used for slurry at spacing intervals, and in view of construction axle Line is longer, and slurry supply pump is when being unsatisfactory for requiring situation for slurry, and on flow inlet road, the slurries terminal of middle setting one increases slurry pipe Slurry pressure in road, to prevent that slurries precipitation from causing plugging；Then setting up for construction platform is carried out.

During construction, need to be combined using barge construction platform and the steel construction cantilever construction platform on harbour two kinds are put down Platform, during arrangement, barge construction platform and cantilever construction platform can be carried out simultaneously, also can successively be carried out.

Wherein, before arrangement barge construction platform, barge 8 need to be fixed at port berth (as shown in Figure 2), it includes Following steps：

Sand material is backfilled in the load-carrying cabin of barge 8, to increase the stability of barge 8 as counterweight；

By four positioning of anchors and cross-brace, barge 8 is fixed at port berth.

Wherein, by four positioning of anchors with cross-brace, barge 8 be fixed at port berth comprised the following steps：

A ship anchor 10 is disposed respectively at forward andor aft of the barge 8 per side；

Two ship anchors of the close harbour side of barge 8 are tied up on a pair of bollards of harbour respectively, laterally to lead Draw support barge；

Two ship anchors of the remote harbour side of barge 8 are thrown into remote anchor respectively sunk and be held away from the seabed of harbour, with Just using anchor cable in the oblique drawing barge 8 in seabed.

By the laterally pulled of four positioning of anchors and a pair of hawsers, it can further increase the stability of barge 8 across the sea.

Barge 8 is fixed on after port berth, barge platform is set up on barge 8, is comprised the following steps：

First, steel plate is laid on the load-carrying cabin surface of barge 8, a part for steel plate is stretched out the ship edge of barge, so as to Stretch out steel plate of the ship along part and form overhanging platform 12；

Then, steel plate is connected to one with barge 8, it is preferred that steel plate is welded together with barge 8；

Finally, the multiple pilot holes 13 opened up at certain intervals on platform 12 for being oriented to and positioning are stretched flat outside, it is multiple to lead It is that diameter is identical and the vertical circular hole for running through steel plate to hole 13.

Wherein, the utility model sets overhanging platform 12 on barge, you can for as the construction surface of staff, The follow-up preformed hole that the bed well cementing construction of block ground mass is oriented to and positioned can be used as again.By being stretched flat outside on platform 12 It is drilled with pilot hole, it is to avoid the damage that prior art drills on barge deck and caused to deck.

Wherein, when barge 8 being fixed on into harbour, also using push rod structure side top, to control hole position distance, it is ensured that hole position Accurately.Specifically, push rod structure uses steel frame construction, the side of push rod structure is welded in barge construction platform, push rod structure Opposite side be supported on quay side wall, push rod structure top weld a pulley, on barge is with the fluctuation of seawater During lower floating, the pulley on push rod structure top can be slided up and down along quay side wall, accordingly, on quay side wall and pulley At the corresponding position of installation site, a slideway slided up and down for pulley is processed with channel-section steel, enables pulley easily Slided up and down on quay side wall.

Wherein, the spacing of adjacent pilot holes is determined as needed, at construction guidance hole, construction surface on barge platform its It all carries out security protection in position using portable guardrail 9 near water, determines workmen's safety, and set special messenger according to sea The tide is flowing and ebbing situation, the hawser connected close to the anchor cable of quay side two elastic at any time, prevents that hawser from breaking and hurts sb.'s feelings.

During barge operation of the present utility model, the cantilever construction platform being arranged on the line of wharf apron need to be coordinated to be made Industry, wherein, cantilever construction platform includes：Longitudinally it is sequentially arranged along harbour and perpendicular to row's tripod 14 of wharf apron line, For being used as stress frame；By the crossbeam 15 of two tripod lateral connections adjacent in row's tripod 14 together；Laying Sheet material 16 on row's tripod 14；It is implanted in a pair of dowels 17 of each rear end both sides of tripod 14；With each tripod The U-shaped ring 18 that 14 correspondence placements and its two ends are fixedly connected with a pair of dowels 17 of the both sides of tripod 14.

Comprise the following steps in the above-mentioned cantilever construction platform of the arrangement on the bank of harbour：

Some tripods are welded into by H profile steel, so that as stress frame during construction, some tripods are longitudinal along harbour Perpendicular to wharf apron line arrangement, spacing 1.5m stretches into wharf apron line 1.6m, cantilever 4.8m；

Two row's crossbeams being laterally set in some tripods, some tripods being linked together (plane with will pass through crossbeam Layout drawing is as shown in figure 3, the floor plan is also the top view of front elevation shown in Fig. 4), crossbeam uses 20# channel-section steels and triangle Frame full weld；

Sheet material (plank thick such as 4cm) is laid above the tripod linked together, layout drawing refers to Fig. 3-Fig. 6)；

Use micro-expansion cement bar planting 20 in the rear anchor point of each tripod 14, bar planting away from frontal line 1.1m~1.2m, with Support triangle frame；

One anchor point is respectively set in each tripod rear end both sides at the position of rear anchor point, and is implanted into a pair of dowels 17, dowel is implanted into dowel depth 1000mm, exposed 200mm part is with using Q235 using two grades of hot rolling ribbed steel bar Φ 28mm The U-shaped ring left-hand thread that round steel Φ 28mm make is in the rear end (as shown in Figure 6) of tripod.

In addition, the platform periphery that borders on the sea in cantilever construction platform sets spacing 2m, high 1.5m guard rail 19, and with protecting Net is good by all skirts of construction platform, by setting mobile protective column in construction platform forward position, it is ensured that the construction peace of staff Entirely.

Wherein, during construction, tripod carries out blanking, during welding, welding position according to default drawing size and angle Weld seam is full, using foot welding height K>8.0mm angle welding.Each tripod enters after completing under the cooperation of 25T cranes The step of capable in place, the U-shaped ring of welding, upper dowel.

After construction platform is set up finishes, extra large work block ground mass bed is drilled and grouting treatment, and in processing Before, the situation to extra large work block ground mass bed is felt, so that follow-up drilling and grouting treatment can be smoothed out.Also, In a period of carrying out strengthening construction to extra large work block ground mass bed, multiple sedimentation deformations are set to observe near the shield wheel bank of wharf apron Point, adjacent sedimentation deformation observation station spacing 27m.Construction period is monitored daily, to be arranged once noting abnormalities and taking in time Apply.

Extra large work block ground mass bed is drilled and grouting treatment is included to the outer round 22 away from harbour, in harbour Round 23, the interstitial hole 24 between outer round 22 and interior round 23 are drilled and the step of grouting treatment respectively, wherein, During to extra large work block stone subgrade reinforcing, carried out by following sequence of construction：First with barge platform to extra large work block ground mass Bed carries out drilling and the grouting treatment (as shown in Figure 7) of outer round, and then extra large work block ground mass bed is entered using cantilever construction platform The drilling of round and grouting treatment (as shown in Figure 8) in row, after external round and interior round grouting treatment, to extra large work block ground mass Bed top layer 21 is excavated, and pours processing (as shown in Figure 9) to the block stone layer top progress mold-bagged concrete after excavation, last profit Drilling and the grouting treatment (as shown in Figure 10) of interstitial hole are carried out to extra large work block ground mass bed with barge platform, respectively drill arrangement of boring holes Figure is as shown in Figure 11, Figure 12.

During reinforcing, using first externally round, interior round carry out well cementing, it is right after block stone surface layer of subgrade bed, excavation to excavate afterwards Excavate the region formed and pour mold-bagged concrete, the working procedure filled again to disturb block stone to top can ensure block ground mass bed Reinforcing body is filled comprehensively, to meet detail design requirement.Wherein, one can be formed on block ground mass bed surface using mold-bagged concrete Individual containment vessel 25, the region that makes entirely to be in the milk, which forms an entirety, prevents alluvion, improves consolidation effect.

Wherein, drilled and during grouting treatment to extra large work block ground mass bed, using isolated tube by above place hole to be drilled Seawater is isolated with surrounding seawater, during to drill, without stream between the surrounding seawater outside seawater and isolated tube above place hole to be drilled It is dynamic.That is, form the static hydrostatic region of relatively extraneous flowing seawater in isolated tube, the fluctuation of extraneous seawater do not interfere with every Inside pipe, when drilling tool is in isolated tube internal drilling, the hole position of drilling will not be influenceed because of the fluctuation of seawater, so as to reduce drilling Deviation between hole position and design hole position, constructs beneficial to follow-up well cementing, improves the construction period, greatly avoids in the prior art Hole position deviation is big during direct pipe-following drilling drilling, need to adjust drilling tool repeatedly and waste the plenty of time, influences construction period situation Occur.

It is preferred that, the utility model is isolated the seawater above place hole to be drilled including as follows with surrounding seawater using isolated tube Step：

Before perforate, the hole position at place hole to be drilled is accurately determined using total powerstation；

The position of one on the overhanging platform of barge platform correspondence pilot hole is selected and determined according to the hole position；

Using suspender, isolated tube is transferred downwards along the pilot hole for determining position, until isolated tube is divided into extra large work The place hole to be drilled of block ground mass bed, makes the seawater above place hole to be drilled isolate with surrounding seawater.

It is preferred that, the height of the isolated tube divided into be more than barge platform to extra large work block ground mass bed jackstone layer surface it is vertical Highly, i.e. should meeting the bottom of isolated tube, pound can be at the top of isolated tube into mud to extra large work block ground mass bed jackstone layer surface On stretch out in the requirement of the overhanging segment distance of platform pilot hole one, and the height of isolated tube should be by barge with water level during seawater fluctuation The factor of difference is taken into account, also, during design, the radius of pilot hole should be made to be more than the radius of isolated tube, to be floated downward on barge Isolated tube will not be extracted during the fluctuation of dynamic or left and right from hole to be drilled.

After isolated tube is transferred to extra large work block ground mass bed, isolation bottom of the tube is placed through the mud and coal on bedding top Grieshoch is simultaneously fixed between the adjacent block stone of rubble-mound foundation and (that is, isolates bottom of the tube by the adjacent block stone around place hole to be drilled Clamp and fixed), through current pilot hole and it is oppositely oriented hole and protrudes upward a part at the top of isolated tube, in barge ripple When dynamic, isolated tube stands in fixed at the hole position at place hole to be drilled all the time, and then extra large work block ground mass bed is entered using barge platform The drilling of the outer round of row and grouting treatment：

To be located under the drilling tool of drilling equipment in isolated tube, using pipe-following drilling extra large work block ground mass bed riprap layer once Into drilling, and pass through the synchronous sleeve pipe formation grout hole for transferring to drill hole；

Grout-jetting pipe is divided into grout hole, grouting material is filled into the gap of riprap layer using provisions for grouting via Grout-jetting pipe It is interior.

Wherein, before the drilling tool of drilling equipment divides into isolated tube, drilling hole position need to be treated and carry out repetition measurement, divided into drilling rod When, by hole position of drilling rod, point carries out a repetition measurement again, and as a result errorless rear drilling tool starts drilling construction.

Wherein, for the ease of pipe-following drilling, the internal diameter of isolated tube 27 of the present utility model is more than the sleeve pipe divided into it 28 external diameter, and the internal diameter of sleeve pipe 28 is more than the external diameter of Grout-jetting pipe 29, during well cementing operation, isolated tube, sleeve pipe, Grout-jetting pipe Position relationship is as shown in figure 20.

When being drilled to inside and outside round, using all-hydraulic downhole drill pipe-following drilling method drilling construction, in isolated tube Drilling tool drilling is inside divided into, pipe-following drilling is drilled into after design hole depth, jam is segmented from bottom to top and is in the milk.The depth of drilling with On the basis of drilling riprap layer, wherein, well cementing process as shown in Figure 13-Figure 16, the construction of grout hole should by grouting procedure, point Sequence segmentation is carried out.When carrying out bore operation, Unified number is answered in all drillings, and indicates the construction order in each hole, below, retouch in detail State well cementing process：

1st, after Location measurement hole to be drilled positioning is ready, isolated tube is divided into the jackstone layer surface of block ground mass bed, such as Figure 13 It is shown.

2nd, using down-the-hole drill, pipe-following drilling forms grout hole to hole depth, synchronous decentralization sleeve pipe is designed in isolated tube.

3rd, down-the-hole drill is risen and pulls out drilling rod, and Grout-jetting pipe is divided into the grout hole of sleeve pipe formation, is then risen and is pulled out sleeve pipe to grouting At the top of the first paragraph of hole, hydraulic pressure plug is divided into, the pipeline of connection Grout-jetting pipe is in the milk, so that grouting liquid is filled into grout hole and jackstone In the gap of layer, as shown in figure 14.

4th, after the first paragraph perfusion of grout hole terminates, rise and pull out at the top of sleeve pipe to the second segment of grout hole, continue to be in the milk, such as scheme Shown in 15.

5th, after perfusion second segment terminates, continued to pull out sleeve pipe, irrigated the 3rd section ... ..., repeated above-mentioned and pull out sleeve pipe and filling The step of slurry, jam grouting is segmented from the bottom to top, until grouting material is filled into whole grout hole.

6th, whole grout hole is filled after grouting material, takes out hydraulic pressure plug, and 0.5 is injected to the aperture of grout hole using grout pipe:1 Cement mortar carry out sealing pores, rise and pull out grout pipe and orifice tube, whole hole grouting terminates, as shown in figure 16.

Wherein, using equipment needed for pipe-following drilling can use prior art equipment, and the method for pipe-following drilling with it is existing Technology is identical using method, its process is not described herein.

It should be noted that when carrying out the well cementing of outer round and interior round to block ground mass bed, can use upper The method divided into isolated tube and drilling tool pipe-following drilling is divided into isolated tube stated.

During well cementing construction is carried out using barge construction platform, the flux and reflux of seawater is simply made to barge Into dipping and heaving, isolated tube is increased or decreased with respect to the distance in seawater, the drilling and filling carried out in isolated tube can't be influenceed Slurry construction, it is ensured that drilling hole position will not be offset, and improve drilling efficiency and strengthening construction efficiency, shorten the duration, reduce construction cost.

In grouting, the length that each section of grout hole can be determined according to the actual conditions of design hole depth, in grouting, grouting Maximum pressure be not more than 0.7MPa.It is preferred that, grouting material is filled into the seam of riprap layer using provisions for grouting via Grout-jetting pipe When in gap, also including using grouting automatic monitoring system to grouting pressure, injection rate, serum density carry out in real time monitor and The step of control.

Specifically, provisions for grouting can use structure as shown in figure 17, including：Mixer 30 with slurry；With stirring with slurry The flow inlet 31 that machine 30 is connected；The grouting pump 33 being connected with mixer 30 with slurry；The pulp-inlet pipe 34 being connected with grouting pump 33 is with returning Starch pipe 41；For the Grout-jetting pipe 29 being placed in sleeve pipe；For the packer 40 for being connected Grout-jetting pipe 29 with pulp-inlet pipe 34；With with The grouting automatic monitoring system that slurry mixer 30 and grouting pump 33 are connected respectively；And, installed in the close of return pipe 41 Being used at grout hole adjusts the high voltage adjusting gate valve 37 of grouting pressure；Being used on pulp-inlet pipe 34 or Grout-jetting pipe 29 prevents Only the grouting liquid in Grout-jetting pipe flows back to the check gate valve 38 of pulp-inlet pipe.The Grout-jetting pipe being in the milk can be using prior art Sleeving valve tube assembly.

Wherein, grouting automatic monitoring system includes：Installed in the pressure at the aperture of grout hole of pulp-inlet pipe 34 Power table 35 and pressure sensor 36；Pressure gauge 43 at grouting pump 33 (is set every slurry dress between each pressure gauge and pipeline Put)；Flow sensor 32 between grouting pump 33 and mixer with slurry 30；Detection drilling depth on drilling tool Displacement transducer 44；It is connected respectively with pressure sensor 36, flow sensor 32, mixer with slurry 30, displacement transducer 44 Grouting automatic recorder 42, pressure, injection rate, the density of grouting liquid, flow etc. during for grouting monitor and control in real time System.

In filling process, if grouting pressure reaches 0.7MPa, injection rate is not more than 2L/min, continues to irrigate 20min. The ending standard is applied to inside and outside round bottom grout compartment (except aperture section) and interstitial hole grout compartment, inside and outside round aperture section note During slurry, aperture returns slurry and can be used as ending standard.In grout hole sealing of hole, " mechanical mud jacking method of pore sealing " or " pressure can be used Be in the milk method of pore sealing ".Sealing material is 0.5 from the ratio of mud:1 cement grout.

Wherein, grouting automatic recorder 42 of the present utility model selects GMS1-4 types (pressure, injection rate) grouting automatic recording instrument, The recorder can monitor 8 sets of provisions for groutings, 64 (kind) dissimilar sensors simultaneously, and consolidation grouting, curtain can be also carried out simultaneously Curtain grouting, joint grouting, rockfill grouting, super-pressure grouting (is more than 10MPa), and big flow grouting (is more than 100L/min), chemistry A variety of grouting methods such as grouting.Field operation individual data acquisition, supports that the data of multiple stage computers collection merge automatically, is filled in collection The various parameters in filling process can be shown in real time while slurry data, record and curve, and carry out industry data to arrange in intelligence, The data of grouting collection in worksite are made to automatically generate various curves, form and the data Analysis on Results chart being in the milk in specification.Grouting Automatic recording instrument possesses powerful network support function (C/S structures), and a server can gather multiple integral passengers simultaneously Family terminal data, is easy to field engineer to plan as a whole the data of whole each working face grouting construction process of engineering of monitoring, grouting note The database of record has encryption function, and operating personnel can not change original record, it can be ensured that the authenticity of firsthand information.

During construction, easy LAN can be installed at the construction field (site), facilitate management, owner to monitor filling in real time in LAN Construction data (remote in Internet can also monitor in real time) is starched, multiple filling processes can be directly monitored by, control is every One filling process is carried out by predetermined formula, and all statistical report forms and result map can be automatically generated by code requirement.

The parameter of grouting automatic monitoring system monitoring of the present utility model lifts value including grouting pressure, injection rate, ground. The data of system output include average grouting pressure, maximum grouting pressure, injection rate, accumulative injection slurry amount, accumulative injection ash quantity, GIN (GIN) etc., the curve of output includes grouting pressure-time graph, injection rate-time graph, accumulative cement injecting 6 kinds of relation curves such as amount-time graph, GIN curves, the form of output includes grouting record sheet, packer permeability test record sheet.

Wherein, the grouting pressure of each hole section, injection rate, accumulative cement injecting amount and GIN values are shown in grouting automatic recorder in real time On 42 computer screens, reflect that each hole section is in the milk the record form and curve of overall process in real time, can be had access at any time or Printing.According to the information obtained, construction technical staff, supervisor can be checked the filling process of a hole section, Analyze, judge decision-making, and the operation for unit of constructing is commanded by telephone for special use, so as to greatly enhance site technology Personnel are effectively guaranteed the quality of grouting works to the direct controling power of grouting operation.

In addition, also using grouting data handling system, it is connected and supported the use with grouting automatic monitoring system, by being in the milk Each item data of automatic monitoring system acquisition and recording, then data handling system progress statistical calculation is transferred to automatically, to directly generate Meet a full set of outcome table, unit cement injecting amount frequency curve, composite profile of code requirement etc. so that whole filling process is more It is transparent, directly perceived.

Wherein, influenceed by project water price, geological conditions, the grouting liquid of common match ratio is in extra large work block stone subgrade reinforcing work Great role is not played in journey, construction quality requirement is can not meet, therefore, the result of the test made according to field test room with And the analysis to result of the test, it is irrigated using mixed stability grouting liquid.

The compound grouting liquid used in filling process includes：Cement mortar and additive.The cement grade that cement mortar is used 42.5# must not be less than, common 42.5# silicate bulk cement is such as used.Corrosion in view of seawater to cement, in cement grout Middle addition additive, additive is combined closely knit wear-resistant preservative including BQ-8, and it is closely knit by ground slag, silica flour, silicon ash, chemistry Agent etc. is composited, and temperature rise can be reduced by adding in cement concrete, improves service behaviour, increases later strength, can improve in concrete Portion's structure, increases the density of concrete, improves the durability and corrosion resistance of concrete, suppresses the erosion of sulfate in seawater, suppresses Concrete alkali-aggregate reaction, increases wear-resistant, cracking resistance, improves antiseepage grade and anti-freezing property, increase consolidation effect.

Further, it is also possible to be needed to mix following one or more admixtures in cement grout according to grouting：

A, sand：From scleroid natural sand or artificial sand, particle diameter is not preferably greater than 2.5mm, and modulus of fineness is not preferably greater than 2.0, SO3 contents are preferably less than 1%, and clay content is not preferably greater than 3%, and content of organics is not preferably greater than 3%；

B, bentonite：Meet the bentonite of II grade and above standard, fineness requirement crosses 0.074mm and tails over≤4.0%.

C, flyash：Cement used at the same time should not be coarser than from selected flyash, loss on ignition is preferably less than 8%, SO3 and contained Amount preferably less than 3%；

D, other admixtures.

Further, it can be needed to mix in cement grout in addition to BQ-8 is combined closely knit wear-resistant preservative according to grouting Following additive in one or more：

A, accelerator：Waterglass (sodium metasilicate), calcium chloride, triethanolamine etc.；

B, water reducer：Naphthalene series high-efficiency water-reducing agent, lignin sulfonate water reducer etc.；

C, stabilizer：Bentonite and other highly plastic clays etc.；

D, tackifier：Hydroxyethyl cellulose HEC；

E, underwater concrete do not isolate additive.

Wherein, if adding additive in cement mortar, all additives are all to be dissolved in should adding with aqueous solution state for water Enter.

It is preferred that, the ratio of mud for the grouting liquid that the utility model is used in construction early stage is 0.8:1, now grouting liquid component Poured water including slurries, cement, flyash, preservative, and each group distribution ratio pours water for stable slurry：Cement：Flyash：Preservative =1.05：1：0.3：0.04, the intensity requirement of the grouting liquid meets the M10 of design requirement.According to feelings in subsequent construction slurries Condition Mixed With Admixture, for example, add tackifier hydroxyethyl cellulose HEC and/or BQ-8 and be combined closely knit wear-resistant preservative and/or water Glass, tackifier have good water-retaining property, can significantly reduce the bleeding of slurries, can be good at improving large fluidity slurry The anti-isolation ability of liquid, BQ-8, which is combined closely knit wear-resistant preservative, can improve durability and corrosion resistance, suppress sulfuric acid in seawater The erosion of salt, increases wear-resistant, cracking resistance, improves antiseepage grade and anti-freezing property, increase consolidation effect, when waterglass can accelerate rapid hardening Between.It is preferred that, to improve grouting effect, preferably improve the intensity of grouting liquid, it is ensured that grouting liquid spreads within the specific limits, after Increase is used 0.6 by continuous grouting liquid proportioning:1 and 0.5:1 slurries, and according to plasma volume situation in hole, can by dense to dilute or By dilute to dense perfusion.

During grouting liquid is irrigated, various special circumstances can be run into, when running into following special circumstances, respectively by such as Lower method processing：

(1) cause what grouting for a long time was interrupted in filling process for some reason, rinse grouting hole section with clear water at once after interruption, just Cleaning bottom of hole is filled again again after often.

(2) in filling process, as lifted, step-down, current limliting processing can be taken, it is invalid to handle, uses dense grouting liquid instead and fill Note, then, treats that coalescence cleaning bottom of hole is filled again.

(3) collapse hole section processing：When drilling run into collapse hole section when, be drilled into hole termination depth, under enter drilling rod to bottom hole, use big flow Water punching, when having backwater, untill clear water is returned；When not returning clear water, circulating time is not less than 30min.Then uninterruptedly rushing In the case of hole, continuous pouring stability slurries terminate to grouting.

(4) big consumption slurry hole section processing：At the end of meeting a large amount of midges such as grout compartment and be difficult to, take first low pressure, underflow, The measures such as current limliting, limitation, intermittent grouting；Appropriate accelerator is filled in slurries if necessary；Treat solidifying or admixture filled in slurries, Such as fine sand.Cleaning bottom of hole is also answered to fill again after processing until normal termination.

(5) slurry hole position, hole section processing are not being eaten：Such as grout compartment or grout hole do not eat slurry, take increase stressed arrange first Apply to handle, it is necessary in the case of can suitably be encrypted in the hole portion.

(6) the occurrence of running into booster in grouting works, is first shut off grouting pump, pause recorder and ascertains the reason, Connect and be in the milk with new grouting high-voltage tube immediately.

After grouting terminates, to ensure construction quality, grouting quality is detected.

Wherein, after the completion of outer round and the construction of interior round, the block stone layer thick to the 1.5m on block ground mass bed surface is opened Dig, and mold-bagged concrete (concrete grade is C20) is poured on whole block ground mass bed top, some strength is reached in concrete Afterwards, interstitial hole is drilled with using geological core rig, and aperture jam, complete opening pressure grouting is carried out to interstitial hole.The brill of interstitial hole Enter and also use above-mentioned first dividing into isolated tube and then divide into drilling tool pipe-following drilling in isolated tube to drill, be in the milk with filling process Method, herein without description.

Wherein, when carrying out dovetail groove excavation to block ground mass bed surface, based on hand excavation, supplemented by machinery.Before construction, Detection under water first is carried out to bedding by diver, and measures the mud face absolute altitude situation of cut-back region, completion rear is felt and carries out water The cleaning of lower block of stone.

Block ground mass bed surface is most of covered with one layer of cinder, before the cleaning of block stone, and cinder first is cleared up into dry with air compressor machine It is net and expose the manual cleaning for carrying out block stone after bedding block stone again.Diver, which is first prized bedding surface block stone with spade, to be loosened, so Block stone is carried to the region of mechanical equivalent of light excavation by the string bag or other handbarrows afterwards.In case of relatively large stone can not manually be carried , excavated using small grab bucket dredger (such as 2.5m3 grab bucket dredgers), by position of the diver to boulder before excavating Put and positioned, during mechanical equivalent of light excavation, diver must debark avoidance.

In view of mechanical equivalent of light excavation region from front toe farther out, it is less to the stable influence of harbour, underwater excavation block stone quantities Greatly, it is necessary to which the larger dredger of mining ability, the area is excavated using toothed 4m3 grab boats.To grasp tide in real time Position situation, sets water gauge on quayside.According to actual tidal level, by being struggled against on the steel wire rope on suspension bucket under reference mark control Depth.Excavation in layers is carried out, per thickness degree 0.5m.Grab boat is excavated from bank side toward extra large side.In digging process, born by special messenger Duty measures the absolute altitude in bedding face under water, has dug the absolute altitude situation that survey crew after one layer checks whole excavation area, has been excavated to last At one layer, strictly struggled against depth under control, it is ensured that ultra-deep is controlled within 0.3m, ultra-wide is controlled within 0.5m, such as forward position toe Locate ultra-deep ultra-wide excessive, mark is carried out in time and by dredger mend and is thrown to design sideline.

Excavate after dovetail groove, to meet following quality requirement：

(1) plan-position excavated should meet design requirement, and cross dimensions is no less than design code；

(2) average ultra-deep tolerance 0.3m；Average ultra-wide, overlength tolerance 0.5m.

After being excavated in wharf apron bedding upper surface, mold-bagged concrete 25, laying are laid in the region of the dovetail groove of formation When, the overall dimension of every mould bag, and reserved contraction are determined according to the breadth of geotextile, vertically and horizontally shrinkage factor and design requirement Amount.It is preferred that, mould that mold-bagged concrete of the present utility model is used bag for 230g/m2 long wire feed mechanism cloth.Consider geotextile Breadth, vertically and horizontally shrinkage factor, preformed hole (fixing hole reserved for pressure grouting) set etc. and to require to determine the total of every mould bag Body size, and reserved amount of contraction, the longitudinal contraction rate about 1% of irrigation rear mold bagging, lateral shrinkage is about 5%.

Mould bag is laid using land making means for supporting reinforcement steel bar colligation mould bag, making machine after using crane to sinking under water Put, diver coordinate under water crane by mould bag along harbour direction, from grouting stabilization zone side, positioning, it is straight along excavated section Lay concrete mould bag.Mould bag layout drawing is as shown in Figure 18, Figure 19.

Mould bag laying is comprised the following steps that：

1) after the completion of surface layer of subgrade bed is excavated, rubble, coal ash and the sediment on bedding surface, removing surface are cleared up with giant Start to divide into mould bag, casting concrete after clean.

2) mould bag support frame (also as mould bag ballast) is made using Ф 16 spiral, passes through No. 20 iron wires by land The mould customized bag is fixed together with means for supporting reinforcement steel bar colligation, interval 30cm colligations together, make means for supporting reinforcement steel bar and mould bag Form a firm entirety.

3) using 25t cranes lifting means for supporting reinforcement steel bar and mould bag combination, slowly divided on design attitude into seawater, When each reinforcement bar support hold mode bag sinks, mark is carried out on harbour face, sinking control speed is noted during sinking.

4) diver coordinates crane to be adjusted positioning to means for supporting reinforcement steel bar under water, breaks according to the standard side slope after excavation Face carries out positioning placement.

5) before concreting, the rubber flexible conduit 26 of casting concrete is inserted mould bag sack by diver, and colligation is tight Gu, carry out and play preparation and inspection work before ash.

6) after the completion of every width mould bag is poured, when dividing into next width mould bag, it is necessary to laminate width mould bag and be not less than 30cm, protect Demonstrate,prove and do not interspace between adjacent 2 width mould bag.

During underwater mould bag concreting, non-dispersible underwater concrete mainly fills flocculant, and increases binder materials Consumption.Non-dispersible underwater concrete can reach concrete placed under water and not isolate, and can Self-leveling self-compaction, be molded under water Concrete quality is good.Underwater mould bag concrete uses commerical ready-mixed concrete, and intensity is C20, and concrete slump is controlled in 180- Between 220mm.

Underwater mould bag concrete is poured using concrete mixer, and concrete mixer, which is arranged in harbour and unloads collier, to be sent outside machine Side, wharf apron is delivered to by pump line.During casting concrete, it is considered to casting position leaving wharf top surface distance factor, underwater portion Conduit connects for flexible pipe, adjusts in place during in favor of underwater casting.

It is determined that mould bag without skew, after the completion of live preparation, by diver by the hose port of concrete pump insert people it is pre- Box out, extend in mould bag, after fastening, i.e. start conveys concrete perfusion.

Pour mold-bagged concrete and use order below：First pour, then pour lower flat by upper mounting plate as shown in figure 18 Platform, finally pours slope section, it is to avoid under slope section concrete gravity, and mould bag is subjected to displacement.

During casting concrete, first it is irrigated from preformed hole on most side, the perfusion from the reserved filling concrete mouth Concrete, is slowly poured, until pouring to mold-bagged concrete tip position, by 1 sewing interlayer unit, all filling completes mixed After solidifying soil, move to next sewing interlayer preformed hole and be irrigated.

Perfusion is poured jointly by two divers, people movement pump line, and simultaneously whether running check concrete goes out for people leveling Now isolation or excess, check whether mould bag and mould bag frame release displacement etc., while also needing to check whether perfusion scope fills real.Diving Member is by draw cord, and the support staff that transmission starts and stopped on the information of concrete perfusion, diving boat informs now immediately Field builder, builder commands pump truck to start or stop by intercom.

Irrigate after what a sewing interlayer unit, command pump truck to stop by intercom by commander, unclamp mould bag perfusion Sack jag, perfusion sack is fastened after extracting intrusion pipe out rapidly, is entered while delivery spout is moved and is inserted to next sewing interlayer sack Row filling concrete.

In mould bag casting process and after the completion of concrete initial set, the situation of mould bag is checked by diver, mould bag is whether there is and rises brokenly Or damage, if any, the concrete in damaged mould bag is taken out by diver, then damaged mould bag is removed, complete nothing is laid again The mould bag of damage, again casting concrete.

Although above-mentioned elaborate to the utility model, the utility model not limited to this, the skill of the art Art personnel can modify according to principle of the present utility model, therefore, all according to the various of principle of the present utility model progress Modification all should be understood to fall into protection domain of the present utility model.

Claims (10)

1. a kind of extra large work barge grouting equipment, including：

The barge platform on barge is ridden upon, multiple pilot holes are opened up thereon；

Suspender and the isolated tube hung using suspender, isolated tube are divided into the place hole to be drilled of extra large work block ground mass bed along pilot hole, So as to which the seawater above place hole to be drilled is isolated with surrounding seawater；

Drilling equipment on barge platform, its drilling tool is located in isolated tube under being used for, to utilize pipe-following drilling in sea The riprap layer of work block ground mass bed passes through the synchronous sleeve pipe formation operation hole for transferring to drill hole once into drilling；

Provisions for grouting on barge platform, with the Grout-jetting pipe being located at under in operation hole, will be filled via Grout-jetting pipe Slurry perfusion is in the gap of riprap layer.

2. equipment according to claim 1, the height of the isolated tube is more than the barge platform to the extra large work block stone The vertical height of the jackstone layer surface of bedding.

3. equipment according to claim 2, the height of the isolated tube is more than barge when being located at peak level, barge Platform to the jackstone layer surface of the extra large work block ground mass bed vertical height.

4. equipment according to claim 2, it is characterised in that the internal diameter of the isolated tube is more than the external diameter of described sleeve pipe.

5. equipment according to claim 1, it is characterised in that the internal diameter of the pilot hole is more than the outer of the isolated tube Footpath.

6. equipment according to claim 1, it is characterised in that the provisions for grouting includes：

Mixer with slurry；The flow inlet being connected with mixer with slurry；

The grouting pump being connected with mixer with slurry；

The pulp-inlet pipe and return pipe being connected with grouting pump；

For the Grout-jetting pipe being placed in sleeve pipe；

For the packer for being connected Grout-jetting pipe with pulp-inlet pipe；

The grouting automatic monitoring system being connected respectively with mixer with slurry and grouting pump.

7. equipment according to claim 6, it is characterised in that the provisions for grouting also includes：

Being used at the close grout hole of return pipe adjusts the high voltage adjusting gate valve of grouting pressure；

Being used on pulp-inlet pipe or Grout-jetting pipe prevents that the grouting liquid in Grout-jetting pipe from flowing back to the check gate valve of pulp-inlet pipe.

8. equipment according to claim 7, it is characterised in that the provisions for grouting also includes：

The grouting data handling system being connected with grouting automatic monitoring system.

9. equipment according to claim 6, it is characterised in that the grouting automatic monitoring system includes：

Installed in the pressure gauge and pressure sensor at the aperture of grout hole of pulp-inlet pipe；

Pressure gauge at grouting pump；

Flow sensor between grouting pump and mixer with slurry；

The displacement transducer of detection drilling depth on drilling tool；

The grouting automatic recorder being connected respectively with pressure sensor, flow sensor, mixer with slurry, displacement transducer, for pair Pressure, injection rate, the density of grouting liquid, flow during grouting monitor and control in real time.

10. equipment according to claim 1, it is characterised in that the drilling equipment includes：For being drilled with inside and outside round Down-the-hole drill equipment and geological core rig equipment for being drilled with interstitial hole.