CN206625263U - Extra large work block ground mass bed ruggedized equipment - Google Patents

Abstract

The utility model discloses a kind of extra large work block ground mass bed ruggedized equipment, including：Ride upon the barge platform being fixed on the barge at port berth；It is arranged in the cantilever construction platform of wharf apron line；On barge platform and cantilever construction platform for the drilling equipment and the provisions for grouting of grouting treatment that are drilled to extra large work block ground mass bed；The excavating gear for being used to excavate extra large work block stone surface layer of subgrade bed on barge platform and/or cantilever construction platform；Be placed on barge platform for the isolated tube of isolating the seawater above place hole to be drilled with surrounding seawater；For the grouting liquid being filled into by provisions for grouting in extra large work block ground mass bed.Equipment of the present utility model, when being drilled to harbour rubble-mound foundation crop, effectively hole position can be avoided to offset, accurate control drilling hole position, monitoring in real time and control are carried out to the strengthening motoring of grouting liquid, it is ensured that grouting quality and construction speed, improve efficiency of construction, raw material usage amount is effectively reduced, it is cost-effective.

Description

Extra large work block ground mass bed ruggedized equipment

Technical field

It the utility model is related to Hydraulic and Hydro-Power Engineering field, more particularly to a kind of extra large work block ground mass bed ruggedized 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, can not ensure hole The precision of position and the depth of drilling, follow-up grouting quality is caused to reduce, the increase of slurry amount, cost improves, progress hysteresis.

The content of the invention

The purpose of this utility model is exactly to overcome the above-mentioned problems of the prior art, there is provided a kind of extra large work block ground mass Bed ruggedized equipment, when being drilled to bedding crop, effectively can avoid hole position from offseting, accurate control drilling hole position, and to grouting liquid Strengthening motoring carry out in real time monitoring and control, it is ensured that grouting quality and construction speed, improve efficiency of construction, effectively reduce former material Expect usage amount, it is cost-effective.

In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of extra large work block ground mass bed ruggedized equipment, It includes：Ride upon the barge platform being fixed on the barge at port berth；The cantilever construction for being arranged in wharf apron line is put down Platform；On barge platform and cantilever construction platform for the drilling equipment to be drilled to extra large work block ground mass bed and grouting The provisions for grouting of processing；It is used to excavate extra large work block stone surface layer of subgrade bed on barge platform and/or cantilever construction platform Excavating gear；Be placed on barge platform for the isolated tube of isolating the seawater above place hole to be drilled with surrounding seawater； For the grouting liquid being filled into by provisions for grouting in extra large work block ground mass bed.

Wherein, the barge platform includes：Barge cabin surface and the steel plate being connected to one with barge are laid on, A part for steel plate stretches out the ship edge of barge, forms overhanging platform；Wherein, interval on platform is stretched flat outside to open up for being oriented to and determining Multiple pilot holes of position.

Wherein, the cantilever construction platform includes：The row's tripod being longitudinally sequentially arranged along harbour, for as stress Skeleton；The crossbeam of two adjacent tripods of lateral connection；The sheet material being laid on tripod；It is implanted in each tripod rear end A pair of dowels of both sides；What placement corresponding with each tripod and its both ends were fixedly connected with a pair of dowels of the tripod both sides U-shaped ring.

Further, the cantilever construction platform also includes：It is implanted in the cement bar planting of the rear anchor point of each tripod.

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.

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

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

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

Further, in addition to it is used for the fixing device that the barge is fixed at port berth, it includes：For returning The sand material filled out in the cabin of barge, so as to the stability as counterweight increase barge；For barge to be fixed on into harbour pool Four anchor cables at position, to position and barge described in cross-brace.

Wherein, the drilling equipment includes down-the-hole drill and geological core rig.

Wherein, Grout-jetting pipe is sleeving valve tube assembly.

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

1st, the utility model selects suitable drilling tool to arrange in pairs or groups and used, realize 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 smoothly completes.

2nd, the utility model will be isolated the seawater above place hole to be drilled with surrounding seawater using isolated tube, to isolate The static hydrostatic region of relatively extraneous flowing seawater is formed in pipe so that the fluctuation of extraneous seawater is not interfered with isolated tube Portion, and be located in isolated tube and drilled under drilling tool so that deviation is small between drilling hole position and design hole position, beneficial to follow-up drilling Grouting construction, improve the construction period.

3rd, the utility model is carrying out compound grouting, and monitoring control at any time according to stratum characteristic from different strengthening motorings Each strengthening motoring is made, ensures grouting quality, effectively reduces raw material usage amount, save construction cost, reduce construction costs；

4th, the utility model can precisely differentiate the seepage feelings of construction part earth formation using jam grouting technique is segmented Condition, manufacture bases is provided accurately to handle the position well.

Brief description of the drawings

Fig. 1 is the section of quay wall figure reinforced using the utility model sea work block ground mass bed reinforcement means；

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

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 block ground mass bed ruggedized equipment, and it includes：Ride upon and be fixed at port berth Barge on barge platform；It is arranged in the cantilever construction platform of wharf apron line；Put down installed in barge platform and cantilever construction On platform for the drilling equipment and the provisions for grouting of grouting treatment that are drilled to extra large work block ground mass bed；Installed in barge platform And/or the excavating gear for being used to excavate extra large work block stone surface layer of subgrade bed on cantilever construction platform；It is placed on barge platform For the isolated tube for isolating the seawater above place hole to be drilled with surrounding seawater；For being filled into extra large work block stone by provisions for grouting Grouting liquid in bedding；And it is cast in the concrete mould bag that region is excavated on extra large work block ground mass bed surface.

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, the barge platform includes：Barge cabin surface and the steel plate being connected to one with barge are laid on, A part for steel plate stretches out the ship edge of barge, forms overhanging platform；Wherein, interval on platform is stretched flat outside to open up for being oriented to and determining Multiple pilot holes of position.Pilot hole is drilled with platform 12 by being stretched flat outside, avoids prior art from being drilled on barge deck and right Damage caused by deck.

Wherein, cantilever construction platform includes：Longitudinally it is sequentially arranged along harbour and perpendicular to row's triangle of wharf apron line Frame 14, for as stress frame；By the crossbeam 15 of two tripod lateral connections adjacent in row's tripod 14 together； The sheet material 16 being laid 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 three The U-shaped ring 18 that the corresponding placement of corner bracket 14 and its both ends are fixedly connected with a pair of dowels 17 of the both sides of tripod 14；And implantation In the cement bar planting of the rear anchor point of each tripod.

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 the high voltage adjusting gate valve 37 for being used to adjust grouting pressure at the close grout hole of return pipe 41；Be arranged on into Slurry pipe 34 or Grout-jetting pipe 29 on be used for prevent the grouting liquid in Grout-jetting pipe from flowing back to the check gate valve 38 of pulp-inlet pipe.Filled The Grout-jetting pipe of slurry can use the sleeving valve tube assembly of prior art.

Wherein, grouting automatic monitoring system of the present utility model includes：It is located at grout hole installed in pulp-inlet pipe 34 Aperture at pressure gauge 35 and pressure sensor 36；At grouting pump 33 pressure gauge 43 (each pressure gauge and pipeline it Between set every sizing device)；Flow sensor 32 between grouting pump 33 and mixer with slurry 30；On drilling tool Detect the displacement transducer 44 of drilling depth；With pressure sensor 36, flow sensor 32, mixer with slurry 30, displacement sensing The grouting automatic recorder 42 that device 44 connects respectively, pressure, injection rate during for grouting, the density of grouting liquid, flow etc. are carried out Monitoring in real time and control.

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 kind is the geological core rig equipment for being drilled with interstitial hole.

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 the fixing device of isolated tube, and the fixing device for barge to be fixed at port berth：For backfilling in barge Sand material in cabin, so as to the stability as counterweight increase barge；For four that barge is fixed at port berth Anchor cable, to position and cross-brace barge.

Wherein, extra large work block stone subgrade reinforcing is carried out using equipment of the present utility model to comprise the following steps：

Barge platform is set up on the barge at port berth is fixed on；

In wharf apron, line arranges cantilever construction platform；

Drilling and the grouting treatment of outer round are carried out to extra large work block ground mass bed using barge platform；

The drilling of round and grouting treatment in being carried out using cantilever construction platform to extra large work block ground mass bed；

After external round and interior round grouting treatment, extra large work block stone surface layer of subgrade bed is excavated, and to the block stone layer after excavation Progress mold-bagged concrete in top pours processing；

After pouring processing at the top of block stone layer, the drilling and filling of interstitial hole are carried out to extra large work block ground mass bed using barge platform Slurry processing；

Wherein, when being drilled to extra large work block ground mass bed and grouting treatment, using isolated tube by above place hole to be drilled Seawater is isolated with surrounding seawater.

Below, with use equipment of the present utility model to being reinforced with harbour jackstone berth crop as shown in Figure 1 Exemplified by construction, the method reinforced using the utility model device is described.

Specifically, port berth as shown in Figure 1 is gravity type box structure, i.e. is above extra large work block ground mass bed 1 Some closed squares 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 harbour rear is arranged on the breastwork 4 of harbour for the rib body block stone and the stone 6 that cuts into a mountain, the front rail of bridge type coal grab-unloader of backfill, Rail is arranged on the track girder by Punching Borehole Cast-in-place Concrete Pile support afterwards.Bollard 7 is set in front of harbour, and the spacing of bollard 7 is 20m ~30m.Harbour uses drum-type rubber fender by ship fender 5, and the spacing of rubber fender determines according to actual conditions, such as may be used It is spaced 16.0m.

When being reinforced to the harbour crop, prepare before first carrying out construction, such as：Prepare construction water and electricity consumption, rationally Mixing plant is arranged, wherein, the utility model supplies slurry mode using concentrated compactness, send slurry using sending stock pump to carry out, 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 considers axle of constructing Line is longer, and slurry supply pump sets a slurries terminal to increase slurry pipe when being unsatisfactory for requiring situation for slurry among flow inlet road Slurry pressure in road, to prevent slurries precipitation from causing plugging；Then setting up for construction platform is carried out.

Be combined using barge construction platform and the steel construction cantilever construction platform on harbour two kinds of the utility model Platform, during arrangement, barge construction platform and cantilever construction platform can be carried out simultaneously, also can successively be carried out.

Wherein, before barge construction platform is arranged, it need to use fixing device that barge 8 is fixed at port berth (as scheming Shown in 2), it comprises the following steps：

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

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.

After barge 8 is fixed on into 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 and barge 8 are connected to one, 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 the construction surface as staff, Again can be as the preformed hole that subsequently construction of block ground mass bed well cementing is oriented to and positioned.By being stretched flat outside on platform 12 Pilot hole is drilled with, avoids prior art from being drilled on barge deck and the damage to caused by deck.

Wherein, when barge 8 being fixed on into harbour, also pushed up using push rod structure side, to control hole position distance, ensure 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 harbour side wall, push rod structure top weld a pulley, when barge with the fluctuation of seawater and on During lower floating, the pulley on push rod structure top can slide up and down along harbour side wall, accordingly, in harbour side wall and pulley The corresponding opening 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 in harbour side wall.

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

Construction platform of the present utility model is in addition to barge platform, in addition to the cantilever construction being arranged on the line of wharf apron Platform, 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 as to longitudinal along harbour as stress frame when constructing, some tripods Arranged perpendicular to wharf apron line, spacing 1.5m, stretch 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 to link 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 close to the opening position of rear anchor point in each tripod rear end both sides, and is implanted into a pair of dowels 17, dowel uses two level hot rolling ribbed steel bar Φ 28mm, is implanted into dowel depth 1000mm, exposed 200mm part with using Q235 The U-shaped ring left-hand thread that round steel Φ 28mm make is in the rear end of tripod (as shown in Figure 6).

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 construction platform week skirt, 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 according to default drawing size and angle, during welding, welding position 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 row is 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 of 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, protected in wharf apron near wheel bank and set multiple sedimentation deformations to observe 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 treatments respectively, wherein, In method of the present utility model, sequence of construction is as follows：The brill of outer round is carried out to extra large work block ground mass bed first with barge platform Hole and grouting treatment (as shown in Figure 7), then using cantilever construction platform to extra large work block ground mass bed carry out in round drilling and Grouting treatment (as shown in Figure 8), after external round and interior round grouting treatment, extra large work block stone surface layer of subgrade bed 21 is excavated, and Mold-bagged concrete is carried out to the block stone layer top after excavation pours processing (as shown in Figure 9), finally using barge platform to sea Work block ground mass bed carries out drilling and the grouting treatment (as shown in Figure 10) of interstitial hole, each hole position layout drawing such as Figure 11, Figure 12 of drilling It is shown.

The utility model uses first externally round, interior round progress well cementing, afterwards excavation block stone surface layer of subgrade bed, after excavation Mold-bagged concrete is poured to excavating the region formed, so that the working procedure filled again to top disturbance block stone can ensure block ground mass Bed reinforcing body fills comprehensively, to meet detail design requirement.Wherein, can be formed using mold-bagged concrete on block ground mass bed surface One containment vessel 25, the region that makes entirely to be in the milk, which forms an entirety, prevents alluvion, improves consolidation effect.

Wherein, when being drilled to extra large work block ground mass bed and grouting treatment, 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.

Preferably, 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；

Selected according to the hole position and determine the position of one on the overhanging platform of barge platform corresponding pilot hole；

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.

Preferably, the height for the isolated tube divided into is vertical more than the jackstone layer surface of barge platform to extra large work block ground mass bed Highly, i.e. the bottom that should meet isolated tube pound into mud to extra large work block ground mass bed jackstone layer surface and can be at the top of isolated tube 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 from hole to be drilled when fluctuating dynamic or left and right.

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 stretches out a part upwards 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 the sleeve pipe by synchronously transferring to drill hole forms grout 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, a repetition measurement is carried out again by hole position point of drilling rod, 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.

The utility model is in drilling, using all-hydraulic downhole drill pipe-following drilling method drilling construction, in isolated tube under If drilling tool drills, pipe-following drilling, after being drilled into design hole depth, jam is segmented from bottom to top and is in the milk.The depth of drilling is to drill On the basis of riprap layer, wherein, for well cementing process as shown in Figure 13-Figure 16, the construction of grout hole should divide sequence point by grouting procedure Duan Jinhang.When carrying out bore operation, Unified number is answered in all drillings, and indicates the construction order in each hole, below, it is described in detail and bores Hole filling 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 sleeve pipe of transferring 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 that sleeve pipe is formed, and 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 for connecting 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, after whole grout hole fills grouting material, hydraulic pressure plug is taken out, 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.

To sum up, the utility model using barge construction platform during well cementing construction is carried out, the flood tide of seawater Ebb tide simply causes dipping and heaving to barge, increases or decreases isolated tube with respect to the distance in seawater, can't influence isolated tube The drilling of interior progress and grouting construction, it is ensured that drilling hole position will not be offset, and improve drilling efficiency and strengthening construction efficiency, shorten work Phase, reduce construction cost.

In grouting, the length that each section of grout hole can determine according to the actual conditions of design hole depth, in grouting, grouting Maximum pressure be not more than 0.7MPa.Preferably, grouting material is filled into by the utility model using provisions for grouting via Grout-jetting pipe When in the gap of riprap layer, in addition to using grouting automatic monitoring system to grouting pressure, injection rate, serum density progress The step of monitoring in real time and control.

Specifically, provisions for grouting of the present utility model uses structure as shown in figure 17, including：Mixer 30 with slurry；With The flow inlet 31 that mixer 30 with slurry connects；The grouting pump 33 being connected with mixer 30 with slurry；What is be connected with grouting pump 33 enters slurry Pipe 34 and return pipe 41；For the Grout-jetting pipe 29 being placed in sleeve pipe；For the grouting for being connected Grout-jetting pipe 29 with pulp-inlet pipe 34 Plug 40；The grouting automatic monitoring system being connected respectively with mixer 30 with slurry and grouting pump 33；And installed in return pipe The high voltage adjusting gate valve 37 for being used to adjust grouting pressure at 41 close grout hole；On pulp-inlet pipe 34 or Grout-jetting pipe 29 Be used for prevent the grouting liquid in Grout-jetting pipe from flowing back to the check gate valve 38 of pulp-inlet pipe.

Wherein, grouting automatic monitoring system of the present utility model includes：It is located at grout hole installed in pulp-inlet pipe 34 Aperture at pressure gauge 35 and pressure sensor 36；At grouting pump 33 pressure gauge 43 (each pressure gauge and pipeline it Between set every sizing device)；Flow sensor 32 between grouting pump 33 and mixer with slurry 30；On drilling tool Detect the displacement transducer 44 of drilling depth；With pressure sensor 36, flow sensor 32, mixer with slurry 30, displacement sensing The grouting automatic recorder 42 that device 44 connects respectively, pressure, injection rate during for grouting, the density of grouting liquid, flow etc. are carried out Monitoring in real time and control.

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 (removing 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, can also carry out consolidation grouting, curtain simultaneously Curtain grouting, joint grouting, rockfill grouting, super-pressure grouting (being more than 10MPa), big flow grouting (being more than 100L/min), chemistry A variety of grouting methods such as grouting.Field operation individual data acquisition, support the data of multiple stage computers collection to merge automatically, filled in collection Various parameters that can be in real-time display filling process while starching data, record and curve, and industry data to arrange in intelligence is carried out, 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, it is easy to field engineer to plan as a whole to monitor the data of the whole each working face grouting construction process of engineering, 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, can simple to install at the construction field (site) LAN, 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 include 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 include grouting record sheet, packer permeability test record sheet.

Wherein, the grouting pressure of each hole section, injection rate, accumulative cement injecting amount and GIN value real-time displays are in grouting automatic recorder On 42 computer screens, reflect the record form and curve of each hole section grouting 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, Analysis, judge decision-making, and commanded by operation of the telephone for special use to unit of constructing, 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, equipment of the present utility model also includes grouting data handling system, it is connected with grouting automatic monitoring system And support the use, by each item data of grouting automatic monitoring system acquisition and recording, then data handling system is transferred to automatically and is counted Computing, to directly generate a full set of outcome table for meeting code requirement, unit cement injecting amount frequency curve, composite profile etc., make It is more transparent, directly perceived to obtain whole filling process.

Wherein, influenceed by project water price, geological conditions, the grouting liquid of common match ratio is in extra large work block of the present utility model Great role is not played in ground mass bed reinforcing engineering, can not meet construction quality requirement, therefore, the utility model is according to scene The result of the test that laboratory makes and the analysis to result of the test, are irrigated using mixed stability grouting liquid.

The compound grouting liquid that the utility model uses includes：Cement mortar and additive.The cement grade that cement mortar uses is not 42.5# must be less than, such as use common 42.5# silicate bulk cement.In view of corrosion of the seawater to cement, in cement grout Additive is added, additive includes the compound closely knit wear-resistant preservatives of BQ-8, and it is by ground slag, silica flour, silicon ash, chemical compacting agent Etc. being combined, temperature rise can be reduced by adding in cement concrete, improve service behaviour, increased later strength, can be improved inside concrete Structure, increase the density of concrete, improve the durability and corrosion resistance of concrete, suppress the erosion of sulfate in seawater, suppress concrete Alkali-aggregate reaction, increase wear-resistant, cracking resistance, improve antiseepage grade and anti-freezing property, increase consolidation effect.

Further, it is also possible to 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 Content is preferably less than 3%；

D, other admixtures.

Further, can be needed to mix in addition to the compound closely knit wear-resistant preservatives of BQ-8 in cement grout 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 does 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.

Preferably, the ratio of mud of grouting liquid that the utility model uses in construction early stage is 0.8:1, now grouting liquid component Poured water including slurries, cement, flyash, preservative, and each group distribution ratio is poured 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, such as add the compound closely knit wear-resistant preservative of tackifier hydroxyethyl cellulose HEC and/or BQ-8 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, the compound closely knit wear-resistant preservatives of BQ-8 can improve durability and corrosion resistance, suppress sulfuric acid in seawater The erosion of salt, increase wear-resistant, cracking resistance, improve antiseepage grade and anti-freezing property, increase consolidation effect, when waterglass can accelerate rapid hardening Between.Wherein, if the additives such as waterglass are added in grouting liquid, need to be irrigated using two-shot grouting plug, the two-shot grouting Plug can use the structure of prior art, its structure is not described herein.

Preferably, to improve grouting effect, the intensity of grouting liquid is preferably improved, ensures that grouting liquid expands within the specific limits Dissipate, increase is used 0.6 by follow-up grouting liquid proportioning:1 and 0.5:1 slurries, and according to plasma volume situation in hole, can be 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 fills again again after often.

(2) in filling process, as lifted, decompression, current limliting processing can be taken, processing is invalid, uses dense grouting liquid instead and fills Note, then, treats that coalescence cleaning bottom of hole fills again.

(3) collapse hole section is handled：When drilling runs into collapse hole section, hole termination depth is drilled into, tripping in drilling rod to bottom hole, uses 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：As grout compartment or grout hole do not eat slurry, take increase stressed arrange first Apply to handle, can be suitably in the case of necessary be encrypted in the hole portion position.

(6) the occurrence of booster is run into grouting works, be first shut off grouting pump, pause recorder ascertain 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 1.5m to block ground mass bed surface is opened Dig, and mold-bagged concrete (concrete grade C20) is poured on whole block ground mass bed top, reach some strength 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 cleaning area, feels and completes rear progress 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, is first cleared up cinder with air compressor machine dry 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), the position before excavating by diver to boulder 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 It is big, 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 excavates from bank side toward extra large side.In digging process, born by special messenger Duty measures the absolute altitude in underwater bedding face, 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 It is excessive to locate ultra-deep ultra-wide, carries out mark in time and by dredger mend and throw to design sideline.

After excavating 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 is determined according to the breadth of geotextile, vertically and horizontally shrinkage factor and design requirement, and reserve and shrink Amount.Preferably, the mould bag that mold-bagged concrete of the present utility model uses for 230g/m2 long wire feed mechanism cloth.Consider geotextile Breadth, vertically and horizontally shrinkage factor, preformed hole (fixing hole reserved for pressure grouting) such as set to determine the total of every mould bag at the requirement 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, which is laid, uses land making means for supporting reinforcement steel bar colligation mould bag, making to be sunk after machining using crane to underwater Put, diver coordinates crane along harbour direction, from stabilization zone side of being in the milk, position, be straight along excavated section mould bag under water Lay concrete mould bag.Mould bag layout drawing is as shown in Figure 18, Figure 19.

The laying of mould bag comprises the following steps that：

1) after the completion of surface layer of subgrade bed excavates, 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 by land For silk by the mould bag customized together with means for supporting reinforcement steel bar banding fixed, interval 30cm colligations together, make means for supporting reinforcement steel bar and mould Bag formation one is firm overall.

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, pay attention to sinking control speed 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 Prepare and check work before beating ash Gu carrying out.

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

During underwater mould bag concreting, non-dispersible underwater concrete mainly fills flocculant, and increases binder materials Dosage.Non-dispersible underwater concrete can reach concrete placed under water and not isolate, and can Self-leveling self-compaction, underwater shaping Concrete quality is good.Underwater mould bag concrete uses commerical ready-mixed concrete, intensity 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, casting position leaving wharf top surface distance factor, underwater portion are considered Conduit connects for flexible pipe, in place in favor of being adjusted during underwater casting.

It is determined that without skew, after the completion of live preparation, it is pre- to be inserted people by mould bag by diver for the hose port of concrete pump 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, slope section is finally poured, avoided under slope section concrete gravity, mould bag is subjected to displacement.

During casting concrete, first be irrigated from preformed hole most on side, since reserve filling concrete mouth irrigate Concrete, slowly pour, until pouring to mold-bagged concrete tip position, by 1 sewing interlayer unit, all filling completion is mixed After solidifying soil, move to next sewing interlayer preformed hole and be irrigated.

Perfusion is poured jointly by two divers, and a people moves 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 need to check whether perfusion scope fills real.Diving Member transmits beginning and stops the information of concrete perfusion, the support staff on diving boat informs existing immediately by draw cord Field builder, builder command pump truck to start or stop by intercom.

After irrigating what a sewing interlayer unit, command pump truck to stop by intercom by commander, unclamp the perfusion of mould bag Sack jag, perfusion sack is fastened rapidly after extracting intrusion pipe out, while delivery spout shifting is inserted to next sewing interlayer sack and entered 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 the scope of protection of the utility model.

Claims (10)

1. A kind of 1. extra large work block ground mass bed ruggedized equipment, it is characterised in that including：

   Ride upon the barge platform being fixed on the barge at port berth；

   It is arranged in the cantilever construction platform of wharf apron line；

   On barge platform and cantilever construction platform for the drilling equipment to be drilled to extra large work block ground mass bed and filling Starch the provisions for grouting of processing；

   The excavating gear for being used to excavate extra large work block stone surface layer of subgrade bed on barge platform and/or cantilever construction platform；

   Be placed on barge platform for the isolated tube of isolating the seawater above place hole to be drilled with surrounding seawater；

   For the grouting liquid being filled into by provisions for grouting in extra large work block ground mass bed.
2. 2. equipment according to claim 1, it is characterised in that the barge platform includes：

   Barge cabin surface and the steel plate being connected to one with barge are laid on, a part for steel plate stretches out the ship of barge Edge, form overhanging platform；

   Wherein, the multiple pilot holes for being spaced and being opened up for being oriented to and positioning on platform are stretched flat outside.
3. 3. equipment according to claim 1, it is characterised in that the cantilever construction platform includes：

   The row's tripod being longitudinally sequentially arranged along harbour, for as stress frame；

   The crossbeam of two adjacent tripods of lateral connection；

   The sheet material being laid on tripod；

   It is implanted in a pair of dowels of each tripod rear end both sides；

   The U-shaped ring that placement corresponding with each tripod and its both ends are fixedly connected with a pair of dowels of the tripod both sides.
4. 4. equipment according to claim 3, it is characterised in that the cantilever construction platform also includes：

   It is implanted in the cement bar planting of the rear anchor point of each tripod.
5. 5. according to the equipment described in claim any one of 1-4, it is characterised in that the height of the isolated tube is more than the barge Platform to the jackstone layer surface of the extra large work block ground mass bed vertical height.
6. 6. equipment according to claim 5, it is characterised in that the height of the isolated tube is located at highest more than the barge During water level, the vertical height of barge platform to the jackstone layer surface of the extra large work block ground mass bed.
7. 7. equipment according to claim 5, it is characterised in that the internal diameter of the isolated tube is more than the external diameter of sleeve pipe.
8. 8. equipment according to claim 2, it is characterised in that the internal diameter of the pilot hole is more than the outer of the isolated tube Footpath.
9. 9. equipment according to claim 1, it is characterised in that also include being used to the barge being fixed at port berth Fixing device, it includes：

   For backfilling the sand material in the cabin of barge, so as to the stability as counterweight increase barge；

   For four anchor cables that barge is fixed at port berth, to position and barge described in cross-brace.
10. 10. equipment according to claim 1, it is characterised in that Grout-jetting pipe is sleeving valve tube assembly.