CN207740011U - Novel slurry filling system for effectively controlling surface subsidence - Google Patents

Abstract

The utility model provides a kind of novel slurry filling system for effectively controlling surface subsidence.Described includes slurry agitating device, size delivery device, shield tail synchronization note slurry systems and inert slurry synchronous grouting system, the inert slurry synchronous grouting system includes that the third extrusion pump in thick slurry vehicle discharge outlet, inert slurry tank is arranged and the inert slurry grouting pump in inert slurry tank discharge outlet is arranged, the inert slurry tank is by tank body and the agitating device being arranged in tank body, it is equipped with grout outlet in the bottom of tank body, stock inlet and multiple observation windows are offered on tank body；The thick slurry vehicle is connected to by third extrusion pump and fluid-conveying pipe with the stock inlet of inert slurry tank.In tunneling process, a ring is often tunneled, conventional shield tail mortar synchronous grouting is carried out by shield tail mortar grouting system, while shield body slip casting is carried out by the radial straight hole of two closest to 12 points of inert slurry filling system from shield body.The utility model is avoided the gap outside because of shield body and can not be filled in time by the novel inert slurry of simultaneous implantation will appear surface subsidence.

Description

Novel slurry filling system for effectively controlling surface subsidence

Technical field

The utility model is related to tunneling shield technical fields, refer in particular to a kind of for by that can have when important construction of structures Imitate the novel slurry filling system of control settlement.

Background technology

In recent years, subway transportation has gradually become the important means that city solves traffic congestion, and shield method is as ground The main engineering method of iron construction, has been obtained for being more and more widely used.In municipal construction, Land-Subsidence Control is to ensure ground The factor first of face construction of structures safety, and with the expansion of subway transportation network and perfect, subway tunnel inevitably needs More constructions of structures even operated subway line is passed through under complex geological condition, this controls the stratum settlement of shield-tunneling construction More stringent requirements are proposed for technology.

The ground settlement generated in shield tunneling process is mainly caused by construction caused by Stratum Loss.(stratum Loss is to excavate soil body volume in shield-tunneling construction and build up the difference of tunnel volume), Stratum Loss, shield machine are provided with together in order to control Filling system is walked, section of jurisdiction outer void is filled to make up Stratum Loss by injecting synchronous slurries in time at shield tail rear；Meanwhile it is right Closely knit place is not yet filled, is filled by secondary grouting.This some row means, plays Land-Subsidence Control important Effect.But this method inevitably has a problem that, i.e., when shield machine tunnels, is slightly larger than because excavating cutterhead excavated section Shield body outer diameter, even larger than section of jurisdiction outer diameter, and the gap outside shield body can not be filled in time in tunneling process, if geological conditions Difference, because of shield body outside gap can not fill in time and will appear surface subsidence, and occur above cutterhead stratum collapse sky when, at this moment need It to be filled and be formed effective support to empty place of collapsing in time, but the slip casting of shield tail is helpless to this, allows and works as shield machine Driving to shield tail reaches vacancy of collapsing and needs to promote 5-6 rings or so again, and the sky that collapses at this time has often been communicated up wide range Ground even is had arrived at, therefore：When features as poor geologic condition or when by important construction of structures, traditional grouting method has been difficult to realize pair Effective control of sedimentation.

Invention content

The utility model is insufficient according to prior art to provide a kind of novel slurry filling system for effectively controlling surface subsidence It unites, the filling system in the utility model can be carried out at the same time the injection of shield tail mortar and the injection of shield body inert slurry, inertia slurry Liquid is with good stability, mobility and slump appropriate can be realized over the ground by injecting slurries in shield body radial direction inclined hole Layer sky position of collapsing is realized and Fast Filling and forms support, and collapse empty diffusion or transmission are prevented, very ideal to settlement Control effect.

Technical solution provided by the utility model is：A kind of novel slurry filling system for effectively controlling surface subsidence System, it is characterised in that：The filling system include slurry agitating device, size delivery device, shield tail synchronize note slurry systems and Inert slurry synchronous grouting system, the slurry agitating device include storage tank and aggregate bin, are set respectively in the bottom of aggregate bin There are the mortar delivery port with control valve and thick slurry delivery port, and the second Pulp pump be connected with by slurry pipe in mortar delivery port, The first extrusion pump is connected with by slurry pipe at thickness slurry delivery port；The size delivery device includes mortar jar, thick slurry tank, sand Vehicle and thick slurry vehicle are starched, is equipped with the second extrusion pump in the discharge port of mortar jar and thick slurry tank, the feed inlet of the mortar jar passes through Mortar delivery pipe is connected to the second Pulp pump, and discharge port is directly connected to shield tail synchronous grouting system by the second extrusion pump, thick The feed inlet of slurry tank is connected to by mortar delivery pipe with the first extrusion pump；The inert slurry synchronous grouting system includes that setting exists The thickness slurry third extrusion pump of vehicle discharge outlet, inert slurry tank and the inert slurry slip casting in inert slurry tank discharge outlet is set Pump, the inert slurry tank are by tank body and to set the agitating device in tank body, and the bottom of the tank body is equipped with grout outlet, in tank Stock inlet and multiple observation windows are offered on body；It is equipped with the consistent stirring blade of multiple directions in the slurry can of the thick slurry vehicle, And the slurry can of thick slurry vehicle is connected to by third extrusion pump and fluid-conveying pipe with the stock inlet of inert slurry tank.

The utility model preferably technical solution：The shield tail synchronous grouting system includes trolley mortar jar, mortar grouting The suction pump in mortar vehicle discharge port is pumped and is arranged, mortar vehicle is directly connected to mortar grouting pump；Or with trolley mortar jar into Material mouth is connected to；Or be connected to respectively with the feed inlet of mortar grouting pump and trolley mortar jar by branch line, and in branch line It is equipped with three-way control valve；When mortar vehicle directly with mortar grouting pump be connected to or simultaneously with mortar grouting pump and trolley mortar jar When connection, it is equipped with storage bin hopper in the storage tank of mortar vehicle, is equipped in the bottom of storage bin hopper and is directly connected to mortar grouting pump Grouting port offers overflow port in storage bin hopper higher than the position of storage tank, and the suction pump of mortar vehicle is led to by mortar delivery pipe In storage bin hopper, and installation pumps the Grouting Pipe being connected to mortar grouting at grouting port.

The utility model preferably technical solution：Mortar grouting pump is set there are two the grout outlet individually controlled, two The pipeline of grout outlet punishes in shield tail and synchronizes note mortar pipe at four shield tails；The inert slurry grouting pump is set to be controlled there are one independent The pipeline of the grout outlet of system, grout outlet is punished in shield body into two grouting pipelines, and pipeline is carried out by the radial straight hole of shield body Shield body slip casting.

The utility model preferably technical solution：The slurry agitating device further includes being connected to the feed inlet of storage tank Mixing plant, the storage tank and aggregate bin are that integral type or split are set when the two is separated position in the discharge port of storage tank There is the first Pulp pump, and is connected to the feed inlet of aggregate bin by feed liquid delivery pipe；Aggregate bin go out on funnel be equipped with shake Dynamic pump.

The utility model preferably technical solution：The mortar jar is one or more mortar jars being connected in series with, every The discharge port of a mortar jar is equipped with the second extrusion pump；Thick slurry delivery pipe between the thick slurry tank and the first extrusion pump is equipped with Ground pump.

The utility model preferably technical solution：The discharge port of the thick slurry vehicle is arranged in slurry can tail end bottom, is storing up It starches level in tank and is equipped with stirring main shaft, each stirring blade is made of agitating shaft and the blade being arranged in agitating shaft end, often The blade pitch angle of a stirring blade is identical, and towards the direction of grout outlet；Multiple stirring blades are dispersed in stirring On main shaft, the angle between the agitating shaft and stirring main shaft of each stirring blade is identical；Stirring dress in the inert slurry tank Set be by be horizontally installed in tank body stirring shaft, be spirally distributed in stirring shaft blade and be arranged outside tank body Decelerating motor forms.

The utility model preferably technical solution：Slurry can lower center position is arranged in the discharge port of the mortar vehicle, takes out Stock pump is arranged in discharge outlet, and the storage bin hopper is placed in the top of slurry can tail portion, and part is higher by slurry can, and its underpart is in leakage It is bucket-shaped；The overflow port is placed in the part that storage bin hopper is higher by slurry can, and is connected at overflow port and leads to returning in slurry can Flow tube, the feed inlet that size and the mortar grouting of the grouting port pump are equal in magnitude；Multiple stirring blades are equipped in slurry can, And the stirring blade angle positioned at suction pump both sides is opposite.

The slave shield body of each shield body slip casting of the utility model injects novel inertia closest to two radial straight holes of 12 points Slurries, the volume per gap of the ring grouting amount between a ring shield body and the soil body, and work as monitoring and find that sedimentation increases or counts It was found that when the super side of dregs (the practical amount of being unearthed is more than the corresponding slag earth volume of actual management stroke), it can be radially straight by shield body Further supplement injects novel inert slurry in hole (closest to two radial holes of 12 points), can be quickly real by squeezing action The filling in now landslide area, prevents from settling further expansion, and makes to have generated sedimentation reduction, to the non-convention of the effect of settlement Control Think.Grouting amount is measured not less than super side, and pressure presses the upper pressure control of native storehouse.

The utility model can use in shield tunneling process and carry out shield tail simultaneous implantation cement mortar, may be used also simultaneously To carry out shield body using novel inert slurry, radially supplement slip casting, novel inert slurry have certain self-support performance, slump 190-210 is to be directed to realize effectively filling grouting design, and the slurries presetting period is more than 24 hours, and consolidation strength is extremely low, packet The problem of getting rid of poverty will not be caused by being rolled in outside shield body, avoided the gap outside because of shield body and can not be filled in time and will appear surface subsidence.

Description of the drawings

Fig. 1 is the overall structure diagram of filling system in the utility model；

Fig. 2 is mortar vehicle and the tank connected enlarged diagram of trolley mortar in the utility model；

Fig. 3 is enlarged diagram of the mortar vehicle directly with mortar grouting pump connection in the utility model；

Fig. 4 is the enlarged diagram of the inert slurry filling system of the utility model；

Fig. 5 is the structural schematic diagram of inert slurry tank in the utility model；

Fig. 6 is the structural schematic diagram of stirring blade in inert slurry vehicle storage tank in the utility model；

Fig. 7, Fig. 8 are mortar vehicle structural schematic diagrams that can directly with mortar grouting pump connection in the utility model.

Specific implementation mode

The utility model is described in further detail with reference to the accompanying drawings and examples, and one kind as shown in Figure 1 is for effective Control the novel slurry filling system of surface subsidence, it is characterised in that：The filling system includes slurry agitating device, slurries conveying dress It sets, shield tail synchronizes note slurry systems and inert slurry synchronous grouting system.The slurry agitating device includes storage tank 1, aggregate Storehouse 2 and the mixing plant 19 being connected to the feed inlet of storage tank 1, the storage tank 1 and aggregate bin 2 be integral type or split, two When person is separated position, the first Pulp pump 3 is equipped in the discharge port of storage tank 1, and by feed liquid delivery pipe and aggregate bin 2 into Material mouth is connected to；It is respectively equipped with the mortar delivery port 4 with control valve and thick slurry delivery port 5 in the bottom of aggregate bin 2, and in mortar Delivery port 4 is connected with the second slurry 9 by slurry pipe, and the first extrusion pump 10 is connected with by slurry pipe at thickness slurry delivery port 5； It is equipped with oscillating column pump 6 on funnel in going out for aggregate bin 2, when carrying out inert slurry stirring, needs to open the quickening inertia of oscillating column pump 6 The discharging speed of slurries, and inert slurry is avoided to be adhered on the bulkhead of aggregate bin 2.

As shown in Figure 1, the size delivery device includes mortar jar 7, thick slurry tank 8, mortar vehicle 12 and thick slurry vehicle 13, The discharge port of mortar jar 7 and thick slurry tank 8 is equipped with the second extrusion pump 7-1, and the feed inlet of the mortar jar 7 passes through mortar delivery pipe It is connected to the second Pulp pump 9, discharge port is directly connected to shield tail synchronous grouting system by the second extrusion pump 7-1, thickness slurry tank 8 Feed inlet is connected to by mortar delivery pipe with the first extrusion pump 10.If landline is too long, the mortar jar 7 is one Or multiple mortar jars 7 being connected in series with, it is equipped with the second extrusion pump 7-2 in the discharge port of each mortar jar 7；The thick slurry tank 8 Thick slurry delivery pipe between the first extrusion pump 10 is equipped with ground pump 11.

As shown in Figures 2 and 3, the shield tail synchronous grouting system includes trolley mortar jar 17, mortar grouting pump 18 and sets The suction pump 12-3 in mortar vehicle discharge port is set, the discharge port of the mortar vehicle 12 is arranged in slurry can 12-1 bottom centers position It sets, suction pump 12-3 settings are directly connected to mortar grouting pump 18 in discharge outlet, mortar vehicle 12, the mortar grouting pump 18 If there are two the grout outlet individually controlled, the pipeline of two grout outlets is punished in shield tail synchronizes note mortar pipe at four shield tails；Or It is connected to the feed inlet of trolley mortar jar 17；Or by branch line respectively with mortar grouting pump 18 and trolley mortar jar 17 into Material mouth is connected to, and three-way control valve is equipped on branch line.When mortar vehicle 12 directly with mortar grouting pump 18 be connected to or together When with mortar grouting pump 18 and trolley mortar jar 17 be connected to when, as shown in Figure 7 and Figure 8, in the storage tank 12-1 of mortar vehicle 12 Equipped with storage bin hopper 12-2, it is equipped with the grouting port 12-4 being directly connected to mortar grouting pump 14 in the bottom of storage bin hopper 12-2, is storing up Positions of the hopper 12-2 higher than storage tank 12-1 offers overflow port 12-5, and the suction pump 12-3 of mortar vehicle 12 is defeated by mortar Pipe is sent to lead in storage bin hopper 12-2, and the Grouting Pipe that installation is connected to mortar grouting pump 18 at grouting port 12-4.The storing Bucket 12-2 is placed in the top of the tail portions slurry can 12-1, and part is higher by slurry can 12-1, and its underpart is in funnel-form；The overflow port 12-5 is placed in the part that storage bin hopper 12-2 is higher by slurry can 12-1, and is connected at overflow port 12-5 and leads to slurry can 12-1 The size of interior return duct 12-6, the grouting port 12-4 and the feed inlet of mortar grouting pump 18 are equal in magnitude；In slurry can 12- Multiple stirring blades are equipped in 1, and the stirring blade angle positioned at the both sides suction pump 12-3 is opposite.

As shown in Figures 2 and 3, the inert slurry synchronous grouting system includes being arranged to starch 13 discharge outlet of vehicle in thickness Third extrusion pump 16, inert slurry tank 14 and the inert slurry grouting pump 15 in 14 discharge outlet of inert slurry tank is set, it is described Inert slurry grouting pump 15 is set there are one the grout outlet individually controlled, and the pipeline of grout outlet is punished in shield body into two Grouting Pipes Road, pipeline carry out shield body slip casting by the radial straight hole of shield body.The inert slurry tank 14 is by tank body 14-1 and to set in tank The bottom of internal agitating device 14-2, the tank body 14-1 is equipped with grout outlet 14-3, and stock inlet is offered on tank body 14-1 14-5 and multiple observation window 14-4, stock inlet are arranged at the top of tank body 14-1, and there are three observation window 14-4, is placed equidistant with, and goes out The bottom center in tank body 14-1 is arranged in slurry mouth 14-3, and correspondings with intermediate observation window 14-4, facilitate out of observation window 14-4 into Enter and grout outlet 14-3 is cleared up, avoids the occurrence of blocking；As shown in figure 4, being equipped in the slurry can of the thick slurry vehicle 13 multiple The consistent stirring blade 13-1 in direction, and the slurry can of thick slurry vehicle 13 is starched by third extrusion pump 16 and fluid-conveying pipe with inertia The stock inlet 14-5 connections of flow container 14.The discharge port of the thick slurry vehicle 13 is arranged in slurry can tail end bottom, as shown in fig. 6, The horizontal stirring main shaft 13-2, each stirring blade 13-1 of being equipped with is that by agitating shaft and the leaf in agitating shaft end is arranged in slurry can Piece forms, and the blade pitch angle of each stirring blade is identical, and towards the direction of grout outlet；Multiple stirring blade 13-1 are equal Even to be dispersed on stirring main shaft 13-2, the agitating shaft of each stirring blade is identical as the angle between stirring main shaft 13-2；Such as Fig. 5 It is shown, the agitating device 14-2 in the inert slurry tank 14 be by be horizontally installed in tank body 14-1 stirring shaft 14-21, It is spirally distributed in stirring shaft (14-21) blade 14-23 and the decelerating motor 14-22 groups being arranged outside tank body 14-1 At.

Embodiment one：This embodiment is for Shenzhen International Conference and Exhibition Center machine weight section, and the shield section stratum is upper soft Four subway routes are worn under in lower hard formation, high to requirement of settlement control, shield-tunneling construction difficulty is larger.Upper-soft lower-hard ground Settlement Control inherently shield-tunneling construction field a great problem, and in upper-soft lower-hard ground under wear both wired, construction is difficult Spend bigger.Shenzhen have project in similar stratum under wear the subway line that do not run, settlement Control severely exceeds, post-processing The big expense of difficulty is also big.Inventor uses the method in the utility model to carry out timely radial grouting, specific processing step It is as follows：

(1) the novel inert slurry of synchronous grouting is prepared：Prepare the material of simultaneous grouting slurry according to formula as below：

Wherein flyash, bentonite use flyash in bulk, and above-mentioned material is stirred using modified mixing equipment It mixes, when mix pays attention to keeping under strict control the quality of flyash, sand, to ensure the mobility of slurries.

(2) that the novel inert slurry prepared in step (1) is passed through into the thick slurry delivery port 5 of agitating device aggregate bin 2 One extrusion pump 10 is delivered in thick slurry tank 8, then is transported in thick slurry vehicle 13 by thick the second extrusion pump 7-1 for starching 8 discharge port of tank, Thickness slurry vehicle 13 is transported to first segment trolley by tunnel track, and novel inert slurry passes through the thick third extrusion pump for starching vehicle discharge port It is transported to be delivered in inert slurry tank 14 and is ready for shield body synchronous grouting process；

(3) the mortar slurries of conventional shield synchronization slip casting are prepared in agitating device, and the mortar of preparation is passed through into stirring 4 second slurry of mortar delivery port of device aggregate bin sand 2 is pumped in mortar jar 7, then passes through the second of mortar jar discharge port Extrusion pump 7-1, which is transported in the mortar vehicle storage tank 12-1 of shield tail mortar synchronous grouting, is ready for shield tail mortar synchronous grouting mistake Journey；

(4) in tunneling process, a ring is often tunneled, is carried out by the mortar grouting pump 14 of shield tail mortar grouting system conventional Shield tail mortar synchronous grouting, while by inert slurry grouting pump 15 by the novel inert slurry in inert slurry tank 14 from shield The radial straight hole of two closest to 12 points of body carries out shield body slip casting, fills the gap between shield body and the soil body, often promotes The volume in the grouting amount of the one novel inert slurry of endless tube piece gap between the shield body and the soil body of an endless tube piece width；

(3) when surface subsidence increase occur or when super side's phenomenon, that is, judge occur cavity above cutterhead or shield body, pass through Further supplement injects novel inert slurry to shield body radial direction straight hole (closest to two radial holes of 12 points), passes through squeezing action The filling that can quickly realize landslide area, prevents from settling further expansion, and makes to have generated sedimentation reduction, to the effect of settlement Control Fruit is ideal；Grouting amount is measured not less than super side, and grouting pressure controlling value is the control pressure on the tops Tu Cang, while monitoring sedimentation Value is to stop emergent filling slip casting when sedimentation value no longer increases and occurs slightly reducing；

When shield is built by important construction, by monitoring offer settling data automatically, meanwhile, it carries out when dregs is unearthed Run-length management (i.e. the often corresponding digging management stroke of bucket dregs), either settling data increases or super side occurs, and is required to Carry out emergent filling slip casting.

Surface subsidence can effectively be controlled by synchronizing slip casting through the above way, avoid gap outside because of shield body without Filling will appear surface subsidence to method in time.

Claims (7)

1. a kind of novel slurry filling system for effectively controlling surface subsidence, it is characterised in that：The filling system includes slurries Agitating device, size delivery device, shield tail synchronize note slurry systems and inert slurry synchronous grouting system, the slurries stirring dress Set including storage tank (1) and aggregate bin (2), the bottom of aggregate bin (2) be respectively equipped with the mortar delivery port (4) with control valve and Thickness slurry delivery port (5), and the second Pulp pump (9) is connected with by slurry pipe in mortar delivery port (4), in thickness slurry delivery port (5) Place is connected with the first extrusion pump (10) by slurry pipe；The size delivery device includes mortar jar (7), thick slurry tank (8), mortar Vehicle (12) and thick slurry vehicle (13) are equipped with the second extrusion pump (7-1), the sand in the discharge port of mortar jar (7) and thick slurry tank (8) The feed inlet of slurry tank (7) is connected to by mortar delivery pipe with the second Pulp pump (9), and discharge port is straight by the second extrusion pump (7-1) It connects and is connected to shield tail synchronous grouting system, the feed inlet of thickness slurry tank (8) is connected to by mortar delivery pipe with the first extrusion pump (10)； The inert slurry synchronous grouting system includes third extrusion pump (16), inert slurry of the setting in thick slurry vehicle (13) discharge outlet In the inert slurry grouting pump (15) of inert slurry tank (14) discharge outlet, the inert slurry tank (14) is for tank (14) and setting By tank body (14-1) and the agitating device (14-2) in tank body is set, the bottom of the tank body (14-1) is equipped with grout outlet (14- 3) stock inlet (14-5) and multiple observation windows (14-4), are offered on tank body (14-1)；The slurry can of the thick slurry vehicle (13) The interior stirring blade (13-1) consistent equipped with multiple directions, and the slurry can of thick slurry vehicle (13) passes through third extrusion pump (16) and slurry Material conveying tube is connected to the stock inlet (14-5) of inert slurry tank (14).

2. a kind of novel slurry filling system for effectively controlling surface subsidence according to claim 1, it is characterised in that：Institute State shield tail synchronous grouting system include trolley mortar jar (17), mortar grouting pump (18) and be arranged mortar vehicle discharge port pumping starch It pumps (12-3), mortar vehicle (12) is directly connected to mortar grouting pump (18)；Or it is connected to the feed inlet of trolley mortar jar (17)；Or It is connected to the feed inlet of mortar grouting pump (18) and trolley mortar jar (17) by branch line, and is set on branch line respectively There is three-way control valve；When mortar vehicle (12) is directly connected to mortar grouting pump (18) or pumps (18) and platform with mortar grouting simultaneously When vehicle mortar jar (17) is connected to, storage bin hopper (12-2) is equipped in the storage tank (12-1) of mortar vehicle (12), in storage bin hopper (12- 2) bottom is equipped with the grouting port (12-4) being directly connected to mortar grouting pump (18), is higher than storage tank in storage bin hopper (12-2) The position of (12-1) offers overflow port (12-5), and the suction pump (12-3) of mortar vehicle (12) leads to storing by mortar delivery pipe It struggles against in (12-2), and the Grouting Pipe that installation is connected to mortar grouting pump (18) at grouting port (12-4).

3. a kind of novel slurry filling system for effectively controlling surface subsidence according to claim 2, it is characterised in that：Institute It states mortar grouting pump (18) to set there are two the grout outlet individually controlled, the pipeline of two grout outlets is punished in shield tail into four shield tails Synchronous note mortar pipe；The inert slurry grouting pump (15) sets there are one the grout outlet individually controlled, and the pipeline of grout outlet is in shield Body punishment carries out shield body slip casting at two grouting pipelines, pipeline by the radial straight hole of shield body.

4. a kind of novel slurry filling system for effectively controlling surface subsidence according to claim 1 or 2 or 3, feature It is：The slurry agitating device further includes the mixing plant (19) being connected to the feed inlet of storage tank (1), the storage tank (1) It is integral type or split with aggregate bin (2), when the two is separated position, the first slurry is equipped in the discharge port of storage tank (1) It pumps (3), and is connected to the feed inlet of aggregate bin (2) by feed liquid delivery pipe；Vibration is equipped on funnel in going out for aggregate bin (2) It pumps (6).

5. a kind of novel slurry filling system for effectively controlling surface subsidence according to claim 1 or 2 or 3, feature It is：The mortar jar (7) is one or more mortar jars (7) being connected in series with, and is all provided in the discharge port of each mortar jar (7) There is the second extrusion pump (7-2)；Thick slurry delivery pipe between the thick slurry tank (8) and the first extrusion pump (10) is equipped with ground pump (11)。

6. a kind of novel slurry filling system for effectively controlling surface subsidence according to claim 1 or 2 or 3, feature It is：The discharge port setting of the thick slurry vehicle (13) is in slurry can tail end bottom, and level is equipped with stirring main shaft in slurry can (13-2), each stirring blade (13-1) are made of agitating shaft and the blade being arranged in agitating shaft end, each stirring blade Blade pitch angle it is identical, and towards the direction of grout outlet；Multiple stirring blades (13-1) are dispersed in stirring main shaft On (13-2), the agitating shaft of each stirring blade is identical as the angle between stirring main shaft (13-2)；The inert slurry tank (14) agitating device (14-2) in be by be horizontally installed in tank body (14-1) stirring shaft (14-21), divide in the shape of a spiral Decelerating motor (14-22) composition of the cloth in stirring shaft (14-21) blade (14-23) and setting in tank body (14-1) outside.

7. a kind of novel slurry filling system for effectively controlling surface subsidence according to claim 2 or 3, feature exist In：The discharge port setting of the mortar vehicle (12) exists in its storage tank (12-1) lower center position, suction pump (12-3) setting Discharge outlet, the storage bin hopper (12-2) is placed in the top of the tail portion storage tank (12-1), and part is higher by storage tank (12-1), Lower part is in funnel-form；The overflow port (12-5) is placed in the part that storage bin hopper (12-2) is higher by storage tank (12-1), and in overflow It is connected with the return duct (12-6) led in storage tank (12-1), the size and mortar of the grouting port (12-4) at mouth (12-5) The feed inlet of grouting pump (18) is equal in magnitude；It is equipped with multiple stirring blades in storage tank (12-1), and is located at suction pump (12- 3) the stirring blade angle of both sides is opposite.