CN106592614B - The method for blocking of leakage point in foundation pit waterproof of man - Google Patents
The method for blocking of leakage point in foundation pit waterproof of man Download PDFInfo
- Publication number
- CN106592614B CN106592614B CN201611160663.5A CN201611160663A CN106592614B CN 106592614 B CN106592614 B CN 106592614B CN 201611160663 A CN201611160663 A CN 201611160663A CN 106592614 B CN106592614 B CN 106592614B
- Authority
- CN
- China
- Prior art keywords
- man
- waterproof
- grouting
- leakage point
- serous fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
- E02D19/185—Joints between sheets constituting the sealing aprons
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention relates to a kind of method for blocking of leakage point in foundation pit waterproof of man, includes the following steps: the pile back-pressure sand pocket at the leakage point of waterproof of man close in foundation pit, utilize leakage point described in the back-pressure sandbag damming；The first Grouting Pipe under drilling close to the soil body of waterproof of man, and the first grouting serous fluid is perfused to block the area Kong Xian for corresponding in the soil body and being formed at the leakage point, until first grouting serous fluid can not be perfused；Close to lower second Grouting Pipe of first Grouting Pipe drilling, and the second grouting serous fluid is perfused and is formed by gap to fill first grouting serous fluid；And the back-pressure sand pocket is removed, and in squeezing into steel sheet pile at the leakage point of the waterproof of man in foundation pit, the steel sheet pile is attached at the surface of the waterproof of man and is fixedly connected with the waterproof of man.The combination of above-mentioned working measure preferably resolves the closure problem of leakage point, and the construction time is short, will not influence construction speed.
Description
Technical field
The present invention relates to technical field of structural engineering, a kind of method for blocking of leakage point in foundation pit waterproof of man is refered in particular to.
Background technique
With the in short supply and technological innovation of urban land resource, underground space development increasingly obtains extensive concern and hair
Exhibition, continues to bring out out large quantities of ultra-deep underground space structures, deep-foundation pit engineering comes into being.When to be in underground water rich for base pit engineering
When rich and water level is higher, general using closing precipitation technology Solve problems in construction, the waterproof of man form that closing precipitation uses is logical
Often there are diaphram wall or interlocking pile etc., but no matter which kind of form will appear each because of differences such as difficulty of construction and geological conditions
Kind of leakage problem, biggish percolating water will lead to can not construction operation, it is necessary to thoroughly administered, it is existing for leakage point
The method that processing uses pilot hole slip casting, the grout cures speed of injection is slow, can due to leakage point pressure effect and from leakage point
It is exuded in foundation pit, causes slurries waste and closure is more difficult, the time of plugging construction is long, influences construction speed.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, a kind of closure of leakage point in foundation pit waterproof of man is provided
Method solves the waste of slurries present in pilot hole grouting method in the prior art, blocks difficult, construction time length and influence to apply
The problems such as work progress.
Realizing the technical solution of above-mentioned purpose is:
The present invention provides a kind of method for blocking of leakage point in foundation pit waterproof of man, include the following steps:
The pile back-pressure sand pocket at the leakage point of waterproof of man close in foundation pit, utilizes and leaks described in the back-pressure sandbag damming
Water spot；
The first Grouting Pipe under drilling close to the soil body of waterproof of man, and pass through first Grouting Pipe and the first slip casting is perfused
Slurries are to block the area Kong Xian for corresponding in the soil body and being formed at the leakage point, until first grouting serous fluid can not be perfused
Until；
Close to lower second Grouting Pipe of first Grouting Pipe drilling, and passes through second Grouting Pipe and the second slip casting slurry is perfused
Liquid is formed by gap to fill first grouting serous fluid；And
The back-pressure sand pocket is removed, and in squeezing into steel sheet pile at the leakage point of the waterproof of man in foundation pit, by institute
Steel sheet pile is stated to be attached at the surface of the waterproof of man and be fixedly connected with the waterproof of man.
Method for blocking elder generation pile back-pressure sand pocket of the invention plays the role of back-pressure using back-pressure sand pocket, balances at leakage point
Head pressure, after balancing pressure to the area leakage point Chu Kongxian carry out well cementing, and be in the milk use secondary grouting side
Formula fills up the area Kong Xian first with the first thicker grouting serous fluid, and the first grouting serous fluid rate of set is fast, can be empty in injection
It is quickly solidified after falling into area, plays the area Kong Xian that preliminary rapid curing blocks leakage point, then reinject thinner second slip casting slurry
Liquid fills up the gap in the area Kong Xian, and the sunken area that makes to have leisure is closely knit, controls drainage.Method for blocking of the invention is controlling
Back-pressure sand pocket is removed after leak, then steel sheet pile is set, and plays the role of closure and reinforcing to leakage point.The knot of above-mentioned working measure
Close so that method for blocking of the invention preferably resolves the closure problem of leakage point, the construction time is short, will not influence construct into
Degree.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, further includes:
Third Grouting Pipe under gap between the steel sheet pile and the waterproof of man, will be under the third Grouting Pipe
Enter at the leakage point of the waterproof of man；
The first grouting serous fluid is perfused to block the gap to the gap between the steel sheet pile and the waterproof of man；
By the third Grouting Pipe to perfusion third grouting serous fluid at the leakage point, the third grouting serous fluid is utilized
Block the leakage point of the waterproof of man.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, in close to waterproof of man
Under the soil body drills when the first Grouting Pipe, the surface of the Yu Suoshu soil body corresponds to the drilling position that the area Kong Xian lays the first Grouting Pipe
It sets, the bore position of first Grouting Pipe lays arc-shaped setting, and the tube bottom absolute altitude of two adjacent the first Grouting Pipes is not
Together.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, further includes:
After injecting the first grouting serous fluid using first Grouting Pipe, first Grouting Pipe is above proposed to a set distance
Afterwards, continue that first grouting serous fluid is perfused into first Grouting Pipe.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, further includes:
Second grouting serous fluid is poured into the soil body on the area Kong Xian periphery to reinforce using second Grouting Pipe
The soil body on the area Kong Xian periphery.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, further includes:
By closely knit the first grouting serous fluid and the sky being poured at the waterproof of man surface of the third grouting serous fluid
It falls between the first grouting serous fluid in area, blocks the leakage point with closely knit.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, the third grouting serous fluid
For the mixed solution of polyurethane and waterglass.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, first grouting serous fluid
For the mixed solution of M30 high-strength mortar and waterglass.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, second grouting serous fluid
For the mixed solution of cement slurry and waterglass.
In foundation pit waterproof of man of the present invention the method for blocking of leakage point further improvement lies in that, filled out in the back-pressure sand pocket
Filled with chance water non-cured materials.
Detailed description of the invention
Fig. 1 is the positive structure schematic of leakage point in foundation pit waterproof of man.
Fig. 2 is the schematic diagram of the section structure of leakage point in foundation pit waterproof of man.
Fig. 3 is the structural schematic diagram to seep water at leakage point into foundation pit in foundation pit waterproof of man.
Fig. 4 is the structural schematic diagram of pile back-pressure sand pocket in the method for blocking of leakage point in foundation pit waterproof of man of the present invention.
Fig. 5 to Fig. 7 is that the first slip casting is perfused in the area method for blocking Zhong Xiangkongxian of leakage point in foundation pit waterproof of man of the present invention
The structural schematic diagram of the slip casting procedure decomposition of slurries.
Fig. 8 is to be formed by the method for blocking of leakage point to first grouting serous fluid in foundation pit waterproof of man of the present invention
The structural schematic diagram of the second grouting serous fluid is perfused in structure.
Fig. 9 is the structural schematic diagram that steel sheet pile is arranged in foundation pit waterproof of man of the present invention in the method for blocking of leakage point.
Figure 10 and Figure 11 is that the method for blocking Steel Sheet Pile of leakage point and waterproof of man connect in foundation pit waterproof of man of the present invention
The structural schematic diagram connect.
Figure 12 is the cloth of the bore position of the first Grouting Pipe in the method for blocking of leakage point in foundation pit waterproof of man of the present invention
If structural schematic diagram.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
The present invention provides a kind of method for blocking of leakage point in foundation pit waterproof of man, for thoroughly blocking leakage point, phase
Than in the method for the pilot hole slip casting used in the prior art, method for blocking of the invention uses back-pressure sand pocket pile in foundation pit,
Leakage point is blocked, the back-pressure sand pocket of dense extrusion can reduce water burst speed and flow, play the role of back-pressure, balance head pressure
Power, and then avoid the loss of the first grouting serous fluid before curing in the injection area Kong Xian.Method for blocking of the invention is for the soil body
The method that the area Ce Kongxian uses secondary grouting first injects the first thicker grouting serous fluid, the condensation speed of first grouting serous fluid
Degree is fast, and the back-pressure effect of cooperation back-pressure sand pocket effectively prevents the leakage of the first grouting serous fluid.Utilize the first grouting serous fluid
After preliminary rapid curing blocks leakage point, thinner second grouting serous fluid is reinjected, the gap in the area Kong Xian is filled up, makes to have leisure
It is closely knit to fall into area, controls drainage.Secondary grouting can effectively block the area Kong Xian, control drainage, further
After controlling leak, is reinforced and blocked to add steel sheet pile at leakage point.Method for blocking of the invention preferably resolves leakage
The closure problem of water spot, the construction time is short, will not influence construction speed.With reference to the accompanying drawing in foundation pit waterproof of man of the present invention
The method for blocking of leakage point is illustrated.
As shown in Figure 1 to Figure 3, the surrounding of foundation pit 11 is provided with waterproof of man 13, and the bottom of the waterproof of man 13 is inserted into
In the soil body 12 of 11 bottom of foundation pit, i.e., the bottom of waterproof of man 13 will extend into the bottom plate of foundation pit 11 or less.Waterproof of man 13 is
The construction of foundation pit 11 provides the effect of the water in the barrier outer soil body 12 of foundation pit 11, prevents the soil body for being located at 13 outside of waterproof of man
Water in 12 penetrates into the construction in foundation pit 11 and influencing foundation pit 11.Because of differences such as difficulty of construction and geological conditions, in the curtain that intercepts water
The problem of will appear percolating water on curtain 13, leakage point 14 is formed in waterproof of man 13, which has been connected to foundation pit
11 and the outside of waterproof of man 13 the soil body 12, the water in the soil body 12 can penetrate into foundation pit 11 from leakage point 14, thus in base
The bottom in hole 11 forms foundation pit water 111, the presence of the leakage point 14 cause foundation pit can not construction operation, so of the invention
Method for blocking solves the problems, such as the closure of leakage point 14 aiming at 14 processing method of leakage point.
The method for blocking of leakage point includes the following steps: in foundation pit waterproof of man of the invention
As shown in figure 4, since the water in the soil body 12 enters in foundation pit 11 from leakage point 14, the soil at the leakage point 14
The area Kong Xian 15 is formed due to soil erosion in body 12, and is corresponded in foundation pit 11 and formd foundation pit water 111 at the leakage point 14.
Pile back-pressure sand pocket 24 at the leakage point 14 of first waterproof of man 13 close in foundation pit 11, utilizes the back-pressure sand pocket 24 to block leak
Point 14,24 front of back-pressure sand pocket is deposited at leakage point 14, leakage point 14 to be blocked by back-pressure sand pocket 24, the back-pressure sand
When bag 24 is stacked, the width and height of stacking are intended to the size beyond leakage point 14, and back-pressure sand pocket 24 plays the role of back-pressure, puts down
Weigh head pressure, blocks leakage point 14, reduces the infiltration situation of leakage point 14, and the setting of the back-pressure sand pocket 24 can also be reduced
The slurries being subsequently implanted into the area Kong Xian 15 are lost.It further, should filled with water non-cured materials are met in back-pressure sand pocket 24
In foundation pit water 111, the water in the foundation pit water 111 penetrates into back-pressure sand pocket 24 24 pile of back-pressure sand pocket, the back-pressure sand
The material filled in bag 24, which meets water, to be solidified, and can increase the stacking pressure compactness of back-pressure sand pocket in this way, over time,
Stacking pressure is more and more closely knit under the effect of gravity for back-pressure sand pocket, leak head pressure can be preferably balanced, so that leak
Point can be blocked substantially.Back-pressure sand pocket 24 is met water non-cured materials using woven bag filling and is formed, the chance water non-cured materials packet
Clay, mud, common sand, soybean or flour etc. are included.
As shown in figure 5, first Grouting Pipe 21 in the case where drilling close to the soil body 12 of waterproof of man 13, passes through first Grouting Pipe
The first grouting serous fluid is perfused to block the area Kong Xian 15 for corresponding in the soil body 12 and being formed at leakage point 14 in 21 the first grouting serous fluids of perfusion
Until first grouting serous fluid can not be perfused.The area Kong Xian 15 is corresponded in the top surface of the soil body 12 in 13 outside of waterproof of man to start
Drill lower first Grouting Pipe 21, has the effect of rapid condensation by the first grouting serous fluid that the first Grouting Pipe 21 is perfused, can
Rapid curing blocks the area Kong Xian 15, on the one hand rapid condensation can reduce the loss of material, on the other hand can also accelerate closure
Construction time accelerates construction progress.As a better embodiment of the invention, first slip casting under the surface drilling of the soil body 12
Guan Shi corresponds to the bore position 26 that the area Kong Xian 15 lays the first Grouting Pipe on the surface of the soil body 12, by first in conjunction with shown in Figure 12
The bore position 26 of Grouting Pipe lays arc-shaped setting, and the arc and the edge in the area Kong Xian 15 are mutually close.Specifically, in the soil body 12
Surface mark off region 121 corresponding with the area Kong Xian 15, then around the region 121 edge be arranged bore position 26, should
Bore position 26 is set to inside and outside the edge line in region 121, and drill down tube and mortar depositing construction are suitable using from low to high
Sequence is constructed, and the first grouting serous fluid is injected by the way of repeated multiple times perfusion, until first grouting serous fluid can not
Until perfusion.By bore position 26 around the fan-shaped note laid to external diffusion, be arranged in this way using the bore position of leakage point
It starches pipe and carries out slip casting, can guarantee that the first grouting serous fluid is fully filled with the area Kong Xian.
The effect of first grouting serous fluid is to be filled up completely the area Kong Xian at 14 back side of leakage point, slows down water leakage, reduces water
Soil flow is lost, and surface collapse hidden danger is reduced.
When the first Grouting Pipe 21 is arranged, the tube bottom absolute altitude of two adjacent the first Grouting Pipes 21 is different, i.e., will be adjacent
Depth design in two the first Grouting Pipe 21 insertion soil bodys 12 is difference, to carry out repeated multiple times drilling down tube grouting.Such as
Shown in Fig. 5, first Grouting Pipe 21 is inserted at set depth, so that the tube bottom absolute altitude of first Grouting Pipe 21 is placed in and sets
Determine depth, the first grouting serous fluid first is perfused into the first Grouting Pipe 21 at the set depth, the first grouting serous fluid is sent into
The position deeper to the soil body blocks the area Kong Xian 15 in deeper position, as shown in connection with fig. 6, then at the set depth
Another first Grouting Pipe 21 under the drilling of first Grouting Pipe 21, the depth of another first Grouting Pipe 21 are that set depth raises 2m
Left and right, to realize the repeated multiple times perfusion of the first grouting serous fluid.As another better embodiment of the invention, the first slip casting slurry
The repeated multiple times perfusion of liquid, can also be with the following method: as shown in Figures 5 to 7, the first Grouting Pipe 21 being first inserted into setting
Depth, so that the tube bottom absolute altitude of first Grouting Pipe 21 is placed at set depth, first to the first note of perfusion at the set depth
Slurries are starched, after then above proposing 21 to one set distance of the first Grouting Pipe, the tube bottom absolute altitude of first Grouting Pipe 21 is lifted at this time
It rises, continues that the first grouting serous fluid is perfused into first Grouting Pipe 21, to realize the repeated multiple times perfusion of the first grouting serous fluid.
By the first grouting serous fluid of repeated multiple times perfusion, completed so that 12 area Zhong Kongxian 15 of the soil body is blocked substantially, by
Have the effect of rapid condensation in the first grouting serous fluid, reached preliminary rapid curing and blocked 14 area Chu Kongxian 15 of leakage point,
Control the infiltration phenomenon of leakage point 14.First grouting serous fluid uses the mixed solution of M30 high-strength mortar and waterglass, this is mixed
Closing solution is the water glass solution that M30 high-strength mortar adds that volume accounting is 10% to 20%, is coagulated since M30 high-strength mortar has
Gu fast feature, along with the rapid hardening effect of waterglass, so that first grouting serous fluid rapid hardening effect with higher, avoids
Loss by leaching of first grouting serous fluid from leakage point 14, quickening setting time can also accelerate the construction time.M30 high-strength mortar and
The particle of the mixed solution of waterglass is thicker, when being filled into the area Kong Xian 15, can quickly fill up the area Kong Xian 15, and condenses
Speed is fast, and then realizes the effect that rapid curing blocks the area Kong Xian.And M30 high-strength mortar can be purchased directly, stir without scene
It mixes, can save the construction time.
As shown in figure 8, starting lower second note that drills close to the first Grouting Pipe 21 after the first grouting serous fluid can not be perfused
Pipe 22 is starched, the second grouting serous fluid is perfused by the second Grouting Pipe 22 and is formed by gap to fill the first grouting serous fluid, sky is fallen into
Area 15 is closely knit.The laying mode of second Grouting Pipe 22 is referred to the laying of the first Grouting Pipe 21, also design it is arc-shaped, and second
The depth that Grouting Pipe 22 is inserted into can also be adjusted sequentially, enable the second grouting serous fluid of injection by first in the area Kong Xian 15
The gap filling of the structure formed after grouting serous fluid condensation is closely knit.Since the particle of the first grouting serous fluid is thicker, in first note
After slurry slurries are injected into the area Kong Xian 15, the soil body around the inevitable area Hui Yukongxian 15 of the first thicker grouting serous fluid of particle is combined
When generate subtle gap, the gap can become infiltration hidden danger.So by the way of secondary grouting, using repetitious brill
The second Grouting Pipe and the second grouting serous fluid is injected under hole, is filled up gap using the second grouting serous fluid closely knit, it is ensured that leakage point 14
Place is blocked complete.Second grouting serous fluid uses the mixed solution of cement slurry and waterglass, and cement slurry is plain-water slurry, the element
For cement slurry using 32.5 grades of normal silicate preparations, the ratio of mud is 0.6 or so, add in plain-water slurry volume accounting 10% to
20% water glass solution mixes water glass solution, can play the effect of rapid hardening, and the particle of plain-water slurry is less than M30 high
Strength mortar, second grouting serous fluid can be good at filling the gap in the area Kong Xian.Further, as shown in connection with fig. 9, it also wraps
It includes and pours into the second grouting serous fluid into the soil body on 15 periphery of the area Kong Xian using the second Grouting Pipe 22 to reinforce the area the Kong Xian periphery
The soil body.Second grouting serous fluid is reinforced the soil body on 15 periphery of the area Kong Xian, can play the role of preventing infiltration.It is leaking
12 side of the soil body of water spot 14, is successively blocked using the first grouting serous fluid and the second grouting serous fluid, at the beginning of the first grouting serous fluid
Step solidification blocks, and gap filling and periphery soil stabilization in conjunction with the second grouting serous fluid have blocked the back of leakage point 14 well
Face (i.e. soil body side), the drainage at leakage point 14 are effectively controlled.
Second grouting serous fluid is extended consolidation process to the area Kong Xian, and effect is the structure for forming the first grouting serous fluid
Gap, the loose soil body of original state etc. carry out the grouting and reinforcing of split point between gap itself, first grouting serous fluid and the original state soil body,
Substantially reduce the capillary water percolating capacity at the leakage point back side.
As shown in Figure 8 and Figure 9, after controlling leak, pump drainage foundation pit water 111 removes back-pressure sand pocket 24, and in base
Steel sheet pile 25 is squeezed at the leakage point 14 of waterproof of man 13 in hole 11, which is sticked in the table of waterproof of man 13
Face, and be fixedly connected with waterproof of man 13.In conjunction with shown in Figure 10 and Figure 11, steel sheet pile 25 uses fashioned iron, erects in leakage point 14
Place, and is fixedly connected with waterproof of man 13, and steel sheet pile 25 and waterproof of man 13 are fixedly connected to form entirety, enables steel sheet pile
The effect of leak lateral pressure is withstood enough.Fashioned iron uses H450mm*150mm*9mm*14mm fashioned iron, and fashioned iron is driven underground 2 meters
Left and right, is welded with HRB400mm diameter 20mm spacing one of reinforcing bar of 600mm with M20 expansion anchor, anchor bolt is driven into waterproof of man 13
Interior, reinforcing bar cuff is welded and fixed on fashioned iron and with anchor bolt.
As a better embodiment of the invention, as shown in connection with fig. 9, further includes: in steel sheet pile 25 and waterproof of man 13
Between gap under third Grouting Pipe 23, which is lowered at the leakage point 14 of waterproof of man 13；Xiang Gang
The first grouting serous fluid is perfused to block the gap in gap between sheet pile 25 and waterproof of man 13；Then pass through third Grouting Pipe 23
Third grouting serous fluid is perfused to leakage point 14, the leakage point 14 of the waterproof of man 13 is blocked using third grouting serous fluid.To
When soil body down tube slip casting, due to the first grouting serous fluid using rapid condensation, it is injected into the fast rapid hardening of meeting behind the area Kong Xian 15
Knot, without being flowed at leakage point 14, so slip casting twice at the area Kong Xian 15 will not be to playing envelope at leakage point 14
Stifled, the area the Hui Jiangkongxian of slip casting twice 15 at the area Kong Xian 15 blocks tightly, and the structure formed can be close to leakage point 14.And in steel
When the first grouting serous fluid is perfused between sheet pile 25 and waterproof of man 13, which is M30 high-strength mortar and waterglass
Mixed serum, have the characteristics that rapid condensation, can preferably fill the gap between steel sheet pile and waterproof of man 13, and
Leakage point 14 in waterproof of man 13 cannot then be blocked well.Third grouting serous fluid is filled into using third Grouting Pipe
At leakage point 14, which is poured into the first grouting serous fluid and the area Kong Xian 15 at 13 surface of waterproof of man
It, being capable of preferable closely knit closure leakage point 14 between one grouting serous fluid.The front of leakage point is thoroughly blocked.
The third grouting serous fluid is the mixed solution of polyurethane and waterglass.Volume ratio is added in polyurethane solution to account for
10% to 20% water glass solution, to play rapid hardening effect.The polyurethane compares the first slip casting with the mixed solution of waterglass
Slurries are more fine and smooth, can fill the subtle gap at leakage point 14, and the subtle gap that will be present is filled up completely, tightly to seal
Leak stopping water spot 14, and the effect of reinforcing is also acted, so that leakage point is thoroughly blocked.It can not be infused in third grouting serous fluid
After entering, which is stayed between steel sheet pile 25 and waterproof of man 13, is blocked using grouting serous fluid.
The method for blocking of leakage point has the beneficial effect that in foundation pit waterproof of man of the present invention
The closure that three kinds of grouting serous fluids carry out leakage point, the thicker M30 mortar of utilization is utilized in method for blocking of the invention
Manufactured first grouting serous fluid blocks the gap between the area Kong Xian and waterproof of man and steel sheet pile completely, then falls into the sky of the soil body
Using the second grouting serous fluid made of the cement slurry thinner than the first grouting serous fluid particle at area, using the second grouting serous fluid come closely knit
Gap in the soil body, includes the gap of structure itself after the condensation of the first grouting serous fluid, the first grouting serous fluid and the original state soil body it
Between gap, there are also the loose soil bodys of original state, and reinforcing of second grouting serous fluid to the closure in gap and to the soil body and structure can
The capillary water percolating capacity for substantially reducing the leakage point back side can control leakage by the perfusion of the first grouting serous fluid and the second grouting serous fluid
The infiltration situation at the water spot back side.Using third grouting serous fluid come the gap of closely knit seepage point and seepage point two sides, i.e. waterproof of man
Gap between the first grouting serous fluid structure and seepage point at place, between the first grouting serous fluid structure and seepage point in the area Kong Xian
Gap, the particle of the third grouting serous fluid is thin compared with the particle of the second grouting serous fluid, can by the perfusion of third grouting serous fluid
Microscopic spaces at the leakage point of waterproof of man are filled up completely, leakage point can also be blocked completely.Three kinds of grouting serous fluids
Cooperation blocks leakage point tightly, can be effectively solved seepy question.
Steel sheet pile is arranged in the present invention at leakage point, resists leak lateral pressure, the steel sheet pile and the curtain that intercepts water using steel sheet pile
Curtain is linked to be entirety, can play the role of reinforcing, which effectively keeps out, in conjunction with the tight closure of three kinds of grouting serous fluids,
Seepy question can thoroughly be solved.
The present invention has been described in detail with reference to the accompanying drawings, those skilled in the art can be according to upper
It states and bright many variations example is made to the present invention.Thus, certain details in embodiment should not constitute limitation of the invention, this
Invention will be using the range that the appended claims define as protection scope of the present invention.
Claims (9)
1. the method for blocking of leakage point in a kind of foundation pit waterproof of man, which comprises the steps of:
The pile back-pressure sand pocket at the leakage point of waterproof of man close in foundation pit, utilizes leak described in the back-pressure sandbag damming
Point；
The first Grouting Pipe under drilling close to the soil body of waterproof of man, and pass through first Grouting Pipe and the first grouting serous fluid is perfused
To block the area Kong Xian for corresponding in the soil body and being formed at the leakage point, until first grouting serous fluid can not be perfused and be
Only；First grouting serous fluid is the mixed solution of M30 high-strength mortar and waterglass；
Drill lower second Grouting Pipe close to first Grouting Pipe, and by second Grouting Pipe the second grouting serous fluid of perfusion with
It fills first grouting serous fluid and is formed by gap；Second grouting serous fluid is the mixed solution of cement slurry and waterglass；
And
The back-pressure sand pocket is removed, and in squeezing into steel sheet pile at the leakage point of the waterproof of man in foundation pit, by the steel
Sheet pile is attached at the surface of the waterproof of man and is fixedly connected with the waterproof of man.
2. the method for blocking of leakage point in foundation pit waterproof of man as described in claim 1, which is characterized in that further include:
Third Grouting Pipe under gap between the steel sheet pile and the waterproof of man, the third Grouting Pipe is lowered into
At the leakage point of the waterproof of man；
The first grouting serous fluid is perfused to block the gap to the gap between the steel sheet pile and the waterproof of man；
By the third Grouting Pipe to perfusion third grouting serous fluid at the leakage point, the third grouting serous fluid is utilized to block
The leakage point of the waterproof of man.
3. the method for blocking of leakage point in foundation pit waterproof of man as claimed in claim 1 or 2, which is characterized in that cut in close
Under the soil body of water curtain drills when the first Grouting Pipe, the surface of the Yu Suoshu soil body corresponds to the area Kong Xian and lays the first Grouting Pipe
Bore position, the bore position of first Grouting Pipe lay arc-shaped setting, and the tube bottom of two adjacent the first Grouting Pipes
Absolute altitude is different.
4. the method for blocking of leakage point in foundation pit waterproof of man as claimed in claim 3, which is characterized in that the Yu Suoshu soil body
Surface corresponds to the bore position that the area Kong Xian lays the first Grouting Pipe, comprising:
Region corresponding with the area Kong Xian is marked off on the surface of the soil body；
The bore position of first Grouting Pipe is set to inside and outside the edge line in the region.
5. the method for blocking of leakage point in foundation pit waterproof of man as claimed in claim 3, which is characterized in that further include:
After injecting the first grouting serous fluid using first Grouting Pipe, after above proposing first Grouting Pipe a to set distance, after
Continue and first grouting serous fluid is perfused into first Grouting Pipe.
6. the method for blocking of leakage point in foundation pit waterproof of man as claimed in claim 1 or 2, which is characterized in that further include:
It is described to reinforce that second grouting serous fluid is poured into the soil body on the area Kong Xian periphery using second Grouting Pipe
The soil body on the area Kong Xian periphery.
7. the method for blocking of leakage point in foundation pit waterproof of man as claimed in claim 2, which is characterized in that further include:
By closely knit the first grouting serous fluid being poured at the waterproof of man surface of the third grouting serous fluid and the area Kong Xian
Between the first interior grouting serous fluid, the leakage point is blocked with closely knit.
8. the method for blocking of leakage point in foundation pit waterproof of man as claimed in claim 2, which is characterized in that the third slip casting
Slurries are the mixed solution of polyurethane and waterglass.
9. the method for blocking of leakage point in foundation pit waterproof of man as described in claim 1, which is characterized in that the back-pressure sand pocket
Interior be filled with meets water non-cured materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160663.5A CN106592614B (en) | 2016-12-15 | 2016-12-15 | The method for blocking of leakage point in foundation pit waterproof of man |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160663.5A CN106592614B (en) | 2016-12-15 | 2016-12-15 | The method for blocking of leakage point in foundation pit waterproof of man |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106592614A CN106592614A (en) | 2017-04-26 |
| CN106592614B true CN106592614B (en) | 2019-05-10 |
Family
ID=58802659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611160663.5A Active CN106592614B (en) | 2016-12-15 | 2016-12-15 | The method for blocking of leakage point in foundation pit waterproof of man |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106592614B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761753B (en) * | 2017-10-17 | 2019-11-19 | 山东大学 | A kind of foundation pit water burst rapid rescue slip casting method for blocking |
| CN109024643B (en) * | 2018-08-09 | 2023-06-09 | 中国地质大学（北京） | Waterproof curtain construction device, equipment and waterproof curtain construction method |
| CN111877379B (en) * | 2020-07-24 | 2024-08-13 | 城盾隧安地下工程有限公司 | Same-hole multi-slurry injection machine tool and same-hole multi-slurry injection plugging method |
| CN112211211A (en) * | 2020-10-19 | 2021-01-12 | 湖州三通水利建设有限公司 | Method for bagging sandy soil to build cofferdam and cofferdam built by method |
| CN112726619A (en) * | 2020-12-30 | 2021-04-30 | 中铁四局集团有限公司 | Three-dimensional grouting plugging method for continuous gushing water of sea-filling stratum |
| CN114718071B (en) * | 2021-12-30 | 2024-02-23 | 中铁十四局集团有限公司 | Plugging method suitable for junction of occluding pile and continuous wall |
| CN115354987B (en) * | 2022-09-14 | 2024-01-19 | 贵州大学 | Mine water inrush treatment method |
| CN117107768A (en) * | 2023-09-29 | 2023-11-24 | 云南蔓昭建筑工程有限公司 | Leakage maintenance grouting process for underground engineering concrete enclosure structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT388404B (en) * | 1987-09-14 | 1989-06-26 | Niv Spezial Grundbaugesellscha | Method of producing a seal in the joint between two segments of an underground wall produced in a diaphragm-wall type of construction, and apparatus for carrying out this method |
| CN102605796A (en) * | 2012-04-12 | 2012-07-25 | 天津建岩岩土工程有限公司 | Leaking stoppage method for foundation pit |
| CN203939060U (en) * | 2014-05-21 | 2014-11-12 | 中铁十五局集团有限公司 | Slight seepage block structure of underground continuous wall |
| CN204982923U (en) * | 2015-09-11 | 2016-01-20 | 中铁第四勘察设计院集团有限公司 | Foundation ditch stagnant water curtain reinforcement structure |
| CN205152995U (en) * | 2015-11-13 | 2016-04-13 | 武汉市市政建设集团有限公司 | Local seepage processing apparatus of underground continuous wall |
-
2016
- 2016-12-15 CN CN201611160663.5A patent/CN106592614B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT388404B (en) * | 1987-09-14 | 1989-06-26 | Niv Spezial Grundbaugesellscha | Method of producing a seal in the joint between two segments of an underground wall produced in a diaphragm-wall type of construction, and apparatus for carrying out this method |
| CN102605796A (en) * | 2012-04-12 | 2012-07-25 | 天津建岩岩土工程有限公司 | Leaking stoppage method for foundation pit |
| CN203939060U (en) * | 2014-05-21 | 2014-11-12 | 中铁十五局集团有限公司 | Slight seepage block structure of underground continuous wall |
| CN204982923U (en) * | 2015-09-11 | 2016-01-20 | 中铁第四勘察设计院集团有限公司 | Foundation ditch stagnant water curtain reinforcement structure |
| CN205152995U (en) * | 2015-11-13 | 2016-04-13 | 武汉市市政建设集团有限公司 | Local seepage processing apparatus of underground continuous wall |
Non-Patent Citations (1)
| Title |
|---|
| 富水区深基坑止水帷幕局部渗漏处理技术;李义堂;《现代隧道技术》;20140630;第51卷(第3期);第188-192页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106592614A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106592614B (en) | The method for blocking of leakage point in foundation pit waterproof of man | |
| CN204112308U (en) | A kind of simple and easy sleeve valve grouting device based on bowlder stone, Thief zone coefficient stratum | |
| CN106639973A (en) | Grouting structure and grouting method for ground surface ultra-deep hole double liquid slurry grouting | |
| CN103953365A (en) | Tunnel single-liquid and double-liquid alternate grouting reinforcement process and device | |
| CN109098213A (en) | A kind of basement blocking method | |
| CN105155541B (en) | A kind of dual slurry closure construction method of catch pit | |
| CN206667278U (en) | Lava crack Tunnel gushing treatment constructing structure | |
| CN105386435B (en) | It is a kind of to be used for the double-liquid grouting system and its construction technology of cement and water glass solution | |
| CN108166535A (en) | A kind of construction method of bellows leak stopping | |
| CN102877470A (en) | Combined soil nailing construction method | |
| CN102493403A (en) | Rock-fill dam deformation control technology | |
| CN108915705B (en) | A kind of baffle grouting construction method blocked for shield export & import leak | |
| CN103174135B (en) | Repair method of unqualified post-grouting bored concrete pile | |
| CN208201874U (en) | A kind of open-cell cloth bag grouting structure | |
| CN111424695B (en) | Seepage-proofing and leakage-stopping method for deep-buried karst pipeline | |
| CN109853477A (en) | Change the concentrative seepage plugging structure and method that dynamic water is hydrostatic in gallery | |
| CN206971247U (en) | Concrete toe board foundation reinforcing structure arranged on unloading rock mass | |
| CN209603062U (en) | Change the concentrative seepage plugging structure that dynamic water is hydrostatic in gallery | |
| CN108149637A (en) | A kind of vertical bank revetment structure and its construction method | |
| CN108035368B (en) | A kind of mud riverbed combined cofferdam and its construction method | |
| CN103898913B (en) | Inner geotextile bag sleeve valve pipe grouting construction method | |
| CN106761823B (en) | Exempt from wall for grouting segmentation cleaning bottom of hole retrusive controlling grouting method | |
| CN110144918A (en) | Hypogee dewatering well antiseepage plugging construction method | |
| CN205314085U (en) | A biliquid slip casting system that is used for cement and water glass solution | |
| CN104452741A (en) | Technique for constructing reinforcing cloth bag grouting pile of coastal soft soil foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |