CN105625293A - Dissolution rock strong-development construction site filling-type geological processing structure and construction method thereof - Google Patents
Dissolution rock strong-development construction site filling-type geological processing structure and construction method thereof Download PDFInfo
- Publication number
- CN105625293A CN105625293A CN201610051830.6A CN201610051830A CN105625293A CN 105625293 A CN105625293 A CN 105625293A CN 201610051830 A CN201610051830 A CN 201610051830A CN 105625293 A CN105625293 A CN 105625293A
- Authority
- CN
- China
- Prior art keywords
- filling
- solution cavity
- cement
- cohesive soil
- punching
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 162
- 239000011435 rock Substances 0.000 title claims abstract description 51
- 238000012545 processing Methods 0.000 title claims abstract description 10
- 238000011161 development Methods 0.000 title abstract description 6
- 238000004090 dissolution Methods 0.000 title abstract 5
- 239000002689 soil Substances 0.000 claims abstract description 161
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims description 174
- 239000004568 cement Substances 0.000 claims description 135
- 238000004080 punching Methods 0.000 claims description 100
- 238000009375 geological disposal Methods 0.000 claims description 94
- 238000000034 method Methods 0.000 claims description 43
- 238000009527 percussion Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 19
- 239000004575 stone Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000013019 agitation Methods 0.000 claims description 9
- 239000007943 implant Substances 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 6
- 239000011401 Portland-fly ash cement Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 4
- 239000004567 concrete Substances 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 238000005266 casting Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
-
- 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
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0037—Clays
Abstract
Disclosed is a dissolution rock strong-development construction site filling-type geological processing structure. The dissolution rock strong-development construction site filling-type geological processing structure comprises a second construction site geological structure and a first karst cave filling-type geological processing structure. The second construction site geological structure of a dissolution rock strong-development construction site comprises a surface cohesive soil layer, a rock-soil layer where a karst cave is developed and the karst cave located in the rock-soil layer in sequence from top to bottom. The first karst cave filling-type geological processing structure comprises a cofferdam located in the karst cave and used for filling up the karst cave, a waterproof curtain located in the cofferdam and composed of a mixture of cohesive soil and concrete and pile hole protective walls formed in the waterproof curtain. The pile hole protective walls of the waterproof curtain are connected with steel structure type pile hole protective walls. The cofferdam used for filling up the karst cave is composed of the cohesive soil for filling or rubbles for filling. A karst cave interior protective system formed by the dissolution rock strong-development construction site filling-type geological processing structure can form a permanent waterproof curtain system, effectively prevent underground water from eroding a reinforced concrete structure and guarantee structure durability.
Description
Technical field
The present invention relates to a kind of foundation structure of building and construction method thereof, particularly grow filled type geological disposal structure and the construction method thereof of construction site at strong lava.
Background technology
The existing treatment technology of solution cavity deposited for bead string type solution cavity and underground Shuifu County is to carry out passing through solution cavity construction using steel pile casting as Percussion Piles retaining wall. Construction site is grown at strong lava, the pile foundation of more than 80% all can run into the problem passing through solution cavity construction, if adopting steel pile casting to pass through the construction method of solution cavity as retaining wall, each steel pile casting needs the different size according to pile foundation to customize respectively, processing technology bothers, and need the substantial amounts of steel of loss, raise the total cost of engineering, bring no small economic pressures to Construction Party; This construction method is confined to the geological disposal of pile foundation, and inapplicable for diaphram wall. When solution cavity height is more than 16m, adopts the method that steel pile casting passes through solution cavity to construct, pile foundation slenderness ratio can be made excessive, without reliable drawknot in solution cavity, cause pile foundation bearing capacity wretched insufficiency, threaten the use safety of agent structure.
Summary of the invention
It is an object of the invention to provide a kind of enforceable " lava grows by force construction site filled type geological disposal structure and construction method thereof ", this lava grows by force in the solution cavity that construction site filled type geological disposal structure is constituted protection system when pile foundation or construction of diaphragm wall, it is prevented from spillage, after basis or construction of diaphragm wall, permanent water-stop curtain system can be formed, effectively stop the subsoil water corrosion function to reinforced concrete structure, ensure the useful life longevity of structure.
The technical scheme solving the problems referred to above is: a kind of lava grows by force construction site filled type geological disposal structure, including construction site geologic structure II, solution cavity filled type geological disposal structure I, it is top layer viscous soil horizon from top to bottom successively that described lava grows by force the construction site geologic structure II of construction site; There is the rock-soil layer that solution cavity is grown, it is arranged in the solution cavity of rock-soil layer, it is characterized in that: described solution cavity filled type geological disposal structure I includes being arranged in solution cavity, for filling the cofferdam of solution cavity, it is positioned at the water-stop curtain that cofferdam is made up of the mixture of cohesive soil Yu cement, and in water-stop curtain formed water-stop curtain pile holes protecting wall, this water-stop curtain pile holes protecting wall is connected with the steel structure formula pile holes protecting wall being positioned at top layer viscous soil horizon.
Described lava grows by force the further technical scheme of construction site filled type geological disposal structure: described solution cavity filled type geological disposal structure I is solution cavity filled type geological disposal structure I A, the described cofferdam for filling solution cavity is the cofferdam a being made up of filling cohesive soil, formed for filling solution cavity the filling cohesive soil in cofferdam be that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value be not less than 4 cohesive soil, the cohesive soil height filled in the cofferdam filling solution cavity is equal with solution cavity hole top mark height.
Described lava grow by force construction site filled type geological disposal structure further technical scheme or: described solution cavity filled type geological disposal structure I is solution cavity filled type geological disposal structure I B, the described cofferdam for filling solution cavity is the cofferdam b being made up of filling slabstone, and the slabstone height of filling is equal with solution cavity hole top mark height.
Described lava grows by force the further technical scheme of construction site filled type geological disposal structure: constitute in the cohesive soil of water-stop curtain and the mixture of cement, described cohesive soil is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value be not less than 4 cohesive soil, described cement be among Portland cement, portland slag cement, Portland pozzolana cement or Portland fly ash cement any one or multiple, its property indices is not less than 42.5# cement; The consumption of cement is determined according to the Dosage calculation of the filling cohesive soil filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil.
Relevant another solution is that a kind of lava grows by force the construction method of construction site filled type geological disposal structure, it is grow by force construction site at lava to form above-mentioned lava and grow by force construction site filled type geological disposal structure pile foundation is passed through the construction method of solution cavity, it is characterized in that: the method is to adopt to insert in underground karst cavity by the flexible material that cohesive soil and cohesive soil become with cement mixing, form solution cavity filled type geological disposal structure I A thus constituting protection system in solution cavity, described lava is grown by force the construction method of construction site filled type geological disposal structure and is comprised the following steps:
Overall preparation before A, construction
A1, according to construction drawing, stake position or diaphram wall centrage are measured, it is determined that the position of advance drilling-i.e. geology verification;
A2, geology are verified to carry out the probing of stake position by stake, and each position or pilot hole arrange that at least one is holed, and probing enters stablizes basement rock, and the degree of depth is not less than 8��10 times of a footpath;
A3, according to results of drilling, it is determined that the Percussion Piles punching degree of depth or diaphram wall enter the degree of depth of the rock degree of depth, the position of solution cavity and solution cavity, and supporting course can be stablized depth of stratum at the bottom of should meeting and cannot be less than 6��8 times of a footpath;
B, making solution cavity filled type geological disposal structure I A:
B1, making cofferdam a:
Filling cohesive soil being filled to solution cavity top mark high, earth volume is surveyed report in detail and is carried out rough calculation according to advance borehole, and statistics fills cohesive soil total amount when filling; The measured value filling cohesive soil end face absolute altitude is identical with the measured value of the Percussion Piles degree of depth, should confirm whether filled height is consistent with geologic report after filling;
B2, filling bagged cement, making water-stop curtain:
B21, throwing bagged cement: the amount of filling out of mixing of cement is determined according to the cohesive soil gauge filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil; The mode adopting artificial throwing is filled with;
Mechanical agitation at the bottom of B22, employing hole, constitutes water-stop curtain by the mixture that cohesive soil and cement mixing are formed:
Utilizing block stamp cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp again and mix after the bagged cement one-time filling of each solution cavity, punching is mixed the time and is determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B3, pour rock again: constitute water-stop curtain pile holes protecting wall structure to form Percussion Piles solution cavern in the bed rock process structure at water-stop curtain:
B31, the punching of cohesive soil and cement is mixed after uniformly, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that karst cave treatment complete after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up;
B32, punching: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, after entering rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency.
Another relevant technical scheme or: a kind of lava grows by force the construction method of construction site filled type geological disposal structure, it is grow by force construction site at lava to form above-mentioned lava and grow by force construction site filled type geological disposal structure, pile foundation is passed through the construction method of solution cavity, it is characterized in that: the method is to adopt to insert in underground karst cavity by the flexible material that filling slabstone and cohesive soil become with cement mixing, form solution cavity filled type geological disposal structure I B thus constituting protection system in solution cavity, described lava is grown by force the construction method of construction site filled type geological disposal structure and is comprised the following steps:
Overall preparation before A, construction
A1, according to construction drawing, stake position or diaphram wall centrage are measured, it is determined that the position of advance drilling-i.e. geology verification;
A2, geology are verified to carry out the probing of stake position by stake, and each position or pilot hole arrange that at least one is holed, and probing enters stablizes basement rock, and the degree of depth is not less than 8��10 times of a footpath;
A3, according to results of drilling, it is determined that the Percussion Piles punching degree of depth or diaphram wall enter the degree of depth of the rock degree of depth, the position of solution cavity and solution cavity, and supporting course can be stablized depth of stratum at the bottom of should meeting and cannot be less than 6��8 times of a footpath;
B, making solution cavity filled type geological disposal structure I B:
B1, making cofferdam b:
Filling slabstone being filled to solution cavity top mark high, cubic meter of stone amount is surveyed report in detail and is carried out rough calculation according to advance borehole, and statistics fills slabstone total amount when filling; The measured value filling out punching stone end face absolute altitude is identical with the measured value of the Percussion Piles degree of depth, should confirm whether filled height is consistent with geologic report after filling;
B2, subsection filling form water-stop curtain:
B21, first filler form the 1st section of water-stop curtain:
B211, punching: go out the hole of 4-8m at ragstone layer top, in order to ensure that hole wall does not cave in, the punching degree of depth more than 10m, and can not adopt intermittent slurry injection technique, ensures hole wall safety;
B212, fill cohesive soil to hole, and fill bagged cement:
Mechanical agitation at the bottom of B213, employing hole, constitutes epimere water-stop curtain by the mixture that cohesive soil and cement mixing are formed, and Specific construction is as follows:
Utilizing block stamp cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp again and mix after the bagged cement one-time filling of each solution cavity, punching is mixed the time and is determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B22, secondary are filled and are formed the 2nd section of water-stop curtain:
B221, secondary punching: mixed after uniformly with cement punching by cohesive soil, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that karst cave treatment complete after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up; Pouring deeper of ragstone layer again, in order to ensure hole wall safety, each depth is not preferably greater than 8m; Specific construction is as follows: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, and after entering ragstone layer or rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency;
B222, clear hole process: the clear hole processing mode of pile foundation or diaphram wall is as follows respectively:
Process to pile foundation: first adopt rubble to draw slag cylinder and clear up by the stone of big particle diameter, then after adopting clear hole to process, could be entered next step and construct;
Process to diaphram wall: in underground continuous wall groove segment, rock or sealing layer rush broken after, first with chute forming machine, crushed stone is pulled out, then adopts clear hole to process, just can carry out next step construction;
B223, again insert cohesive soil and bagged cement, fill cohesive soil to hole, arrive epimere water-stop curtain place, and fill bagged cement:
Mechanical agitation at the bottom of B224, employing hole, constitutes the 2nd section of water-stop curtain by the mixture that cohesive soil and cement mixing are formed, and Specific construction is as follows:
Utilizing block stamp cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp again and mix after the bagged cement one-time filling of each solution cavity, punching is mixed the time and is determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B23, formation lowermost water-stop curtain: repeat n B22 step so that it is fill water-stop curtain piecemeal, until being filled to bottom solution cavity; Form composition and there is 2+n section water-stop curtain; The span of n is: n is any one number in 0,1,2,3,4 or 5;
C, pour rock again, process structure forming Percussion Piles solution cavern in the bed rock; After solution cavity 8 is disposed, rock can be poured again, complete drilling construction; Specific construction is as follows:
C1, the punching of cohesive soil and cement is mixed after uniformly, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that karst cave treatment complete after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up;
C2, punching: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, after entering rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency.
The further technical scheme of the construction method that above-mentioned a kind of lava grows by force construction site filled type geological disposal structure is: in B2, B212 and the B223 step filling cohesive soil and bagged cement making water-stop curtain, described cohesive soil is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value be not less than 4 cohesive soil, described cement be among Portland cement, portland slag cement, Portland pozzolana cement or Portland fly ash cement any one or multiple, its property indices is not less than 42.5# cement; The consumption of cement is determined according to the Dosage calculation of the filling cohesive soil filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil; The mode adopting artificial throwing is filled with.
The Force principle of the present invention it " lava grows by force construction site filled type geological disposal structure " is:
1, formation cofferdam in solution cavity inserted by cohesive soil or slabstone;
2, cement and cohesive soil combine and form dado structure, can protect stake holes or diaphram wall foundation trench, it is prevented that hole wall or landslip of the sides of the trench, it is ensured that the molding of stake holes or diaphram wall foundation trench and follow-up construction operation in solution cavity.
Therefore, compared with prior art, the lava of the present invention grows by force construction site filled type geological disposal structure and construction method has the advantages that
1, in engineer applied, it is applicable to any solution cavity geology as packing material with cement and cohesive soil mixture, and it is applicable to the underground karst cavity that underground backwater is abundant, be particularly well-suited to be corrosive the solution cavity of subsoil water, construct relative to traditional completion method and steel pile casting and have impervious better and corrosion resistance function, of many uses, practicality, strong adaptability.
2, in economic benefit, more saving than traditional steel pile casting karst cave treatment, construction costs is 20% that conventional steel casing processes, is more applicable for the construction site process that many solution cavities are grown.
3, in material-saving benefit: with cement with cohesive soil mixture as packing material, cohesive soil can be gathered materials on the spot, and has effectively saved resource.
4, in construction technology: use the present invention to carry out solution cavity filling process, the solution cavity that moisture storage capacity is big is formed the effect in cofferdam, efficiently solves the generation of the dangerous situations such as excessive, the hole wall collapse of mud; And block the subsoil water corrosion function to pile foundation, it is effectively guaranteed the bearing capacity of pile foundation structure so that pile foundation durability is strengthened.
5, applied range: construction method of the present invention is applicable not only to the pile foundation construction under solution cavity geological conditions, the construction of diaphram wall that is also applied under solution cavity geological conditions.
The technical characteristic that the lava of the present invention is grown by force construction site filled type geological disposal structure and construction method thereof below in conjunction with drawings and Examples is described further.
Accompanying drawing explanation
Fig. 1: lava of the present invention grows by force one of construction site filled type geological disposal structure schematic diagram (cofferdam a is made up of) filling cohesive soil;
Fig. 2: lava of the present invention grows by force two schematic diagrams (cofferdam b is made up of) of construction site filled type geological disposal structure filling slabstone;
Fig. 3��Fig. 7: form the construction procedure schematic diagram that lava grows by force solution cavity filled type geological disposal structure I A of construction site;
Fig. 3: impact and enter solution cavity layer state schematic diagram;
Fig. 4: fill cohesive soil to solution cavity top and make view after a of cofferdam;
Fig. 5: fill bagged cement schematic diagram;
Fig. 6: cohesive soil is mixed, with cement punching, the water-stop curtain view being formed uniformly with Percussion Piles machinery;
Fig. 7: pour rock again: to form Percussion Piles solution cavern in the bed rock process configuration process (being only flushed to half) schematic diagram;
Fig. 8��Figure 15: form the construction process schematic diagram that lava grows by force solution cavity filled type geological disposal structure I B of construction site:
Fig. 8: slabstone is filled view after making cofferdam b to solution cavity absolute altitude;
Fig. 9: the ragstone layer top punching schematic diagram of first filler;
Figure 10: first filler cohesive soil and bagged cement step schematic diagram;
Figure 11: cohesive soil is mixed, with cement punching, the 1st section of water-stop curtain view being formed uniformly with Percussion Piles machinery;
Figure 12: rush again to solution cavity bottom schematic view;
Figure 13: secondary fills cohesive soil and bagged cement step schematic diagram;
Figure 14: cohesive soil is mixed, with cement punching, the 2nd section of water-stop curtain view being formed uniformly with Percussion Piles machinery;
Figure 15: pour rock again: to form Percussion Piles solution cavern in the bed rock process configuration process (being only flushed to 1 half) schematic diagram;
Figure 16: lava of the present invention grows by force one of construction site filled type geological disposal structure for one of diaphram wall geological disposal structure (cross section view) and punching step order plane graph (cofferdam a is made up of filling cohesive soil);
Figure 17: lava of the present invention grows by force the two of construction site filled type geological disposal structure for two (cofferdam b is made up of filling slabstone) of diaphram wall geological disposal structure (cross section view) and punching step order plane graph.
In Fig. 1-15:
1-cofferdam, a, 12-cofferdam, 11-cofferdam b, 2-bagged cement, 3-water-stop curtain, the 1st section of water-stop curtain of 31-filled type geological disposal structure I B, 32-filled type geological disposal structure I B the 2nd section of water-stop curtain, 41-steel structure formula pile holes protecting wall, 42-water-stop curtain pile holes protecting wall, 5-punching installation or block stamp, 6-top layer viscous soil horizon, 7-rock-soil layer, 8-solution cavity;
I A, I B-solution cavity filled type geological disposal structure, II-construction site geologic structure;
In Figure 16-17:
3-water-stop curtain, 8-solution cavity, the cofferdam b of cofferdam a, the 14-diaphram wall of 13-diaphram wall; L-underground continuous wall groove segment; The punching radius of R-block stamp;
The order of 1., 2., 3., 4., 5.-diaphram wall geological disposal punching step.
Detailed description of the invention
Embodiment one:
A kind of lava grows by force construction site filled type geological disposal structure A
As shown in Figure 1, this lava is grown by force construction site filled type geological disposal structure A and is included construction site geologic structure II, solution cavity filled type geological disposal structure I, and it is top layer viscous soil horizon 6 from top to bottom successively that described lava grows by force the construction site geologic structure II of construction site; Have the rock-soil layer 7(that solution cavity is grown as building essential bearing stratum), the solution cavity 8(being arranged in rock-soil layer 7 has strong development characteristics at basement rock, can not as supporting course above solution cavity, and basis needs to pass through solution cavity and is seated on stable basement rock);
Described solution cavity filled type geological disposal structure I is solution cavity filled type geological disposal structure I A, described solution cavity filled type geological disposal structure I A includes being arranged in solution cavity 8, for filling the cofferdam 1 of solution cavity, being positioned at the water-stop curtain 3 that cofferdam 1 is made up of the mixture 3 of cohesive soil Yu cement, and in water-stop curtain 3 formed water-stop curtain pile holes protecting wall 42, this water-stop curtain pile holes protecting wall 42 is connected with the steel structure formula pile holes protecting wall 41 being positioned at top layer viscous soil horizon;
It is the cofferdam a11 being made up of filling cohesive soil that the present embodiment lava is grown by force in solution cavity filled type geological disposal structure I A of construction site for filling the cofferdam 1 of solution cavity, the filling cohesive soil of described formation cofferdam a is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value be not less than 4 cohesive soil, the cohesive soil height filled in the cofferdam a11 filling solution cavity is equal with solution cavity hole top mark height;
This solution cavity filled type geological disposal structure adopts to be inserted in underground karst cavity by the flexible material that cohesive soil and cohesive soil become with cement mixing, forms lava and grows by force solution cavity filled type geological disposal structure I A of construction site thus constituting protection system in solution cavity.
The present embodiment structure is best suited for the construction of the pile foundation construction under the solution cavity 8 height medium and small solution cavity geological conditions less than less than 10 meters or diaphram wall and adopts.
Embodiment two:
A kind of lava grows by force construction site filled type geological disposal structure B
As in figure 2 it is shown, this lava grows by force construction site filled type geological disposal structure still includes construction site geologic structure II and solution cavity filled type geological disposal structure I, its basic structure is roughly the same with embodiment one, is different in that with embodiment one:
Described solution cavity filled type geological disposal structure I is solution cavity filled type geological disposal structure I B, the cofferdam b12 being used for filling solution cavity in described solution cavity filled type geological disposal structure I B is the cofferdam b12 being made up of filling slabstone, and the slabstone height of filling is equal with solution cavity hole top mark height;
This solution cavity filled type geological disposal structure adopts to be inserted in underground karst cavity by the flexible material that filling slabstone and cohesive soil become with cement mixing, forms lava and grows by force solution cavity filled type geological disposal structure I B of construction site thus constituting protection system in solution cavity.
The present embodiment structure is best suited for the construction of the pile foundation construction under the solution cavity 8 height large-scale solution cavity geological conditions more than more than 10 meters or diaphram wall and adopts.
In the embodiment of the present invention one and embodiment two, constitute in the mixture of cohesive soil and cement of water-stop curtain 3, described cohesive soil is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value be not less than 4 cohesive soil; Described cement be among Portland cement, portland slag cement, Portland pozzolana cement or Portland fly ash cement any one or multiple, its property indices is not less than 42.5# cement; The amount of filling out of mixing of cement is determined according to the Dosage calculation of the filling cohesive soil filled, and calculating by weight percentage, cement consumption is no less than the 20% of cohesive soil quality of filling soil; For easy construction, the cement amount generally mixed by the cohesive soil often filling 1m3 is that 300��400Kg calculates.
The embodiment of the present invention one, embodiment two lava grow by force construction site filled type geological disposal structure be applicable not only to Percussion Piles solution cavern in the bed rock process structure, it also is suitable as the geological disposal structure of continuous wall trench underground, referring to Figure 16, Figure 17, the cross section view of Figure 16, Figure 17 respectively this structure, the longitudinal sectional view of Figure 16 is identical with Fig. 1, and the longitudinal sectional view of Figure 17 is identical with Fig. 2.
Embodiment three:
A kind of lava grows by force the construction method of construction site filled type geological disposal structure, it is that the lava grown by force described in construction site formation embodiment one at lava grows by force construction site filled type geological disposal structure A, pile foundation is passed through the construction method of solution cavity, the method is to adopt to insert in underground karst cavity by the flexible material that cohesive soil and cohesive soil become with cement mixing, forms solution cavity filled type geological disposal structure I A thus constituting protection system in solution cavity,Described lava is grown by force the construction method of construction site filled type geological disposal structure and is comprised the following steps (referring to Fig. 3��Fig. 7):
Overall preparation (referring to Fig. 3) before A, construction:
A1, according to construction drawing, stake position or diaphram wall centrage are measured, it is determined that the position of advance drilling-i.e. geology verification;
A2, geology are verified to carry out the probing of stake position by stake, and each position or pilot hole arrange that at least one is holed, and probing enters stablizes basement rock, and the degree of depth is not less than 8��10 times of a footpath;
A3, according to results of drilling, it is determined that the Percussion Piles punching degree of depth or diaphram wall enter the degree of depth of the rock degree of depth, the position of solution cavity 8 and solution cavity 8, and supporting course can be stablized depth of stratum at the bottom of should meeting and cannot be less than 6��8 times of a footpath;
B, making solution cavity filled type geological disposal structure I A:
B1, making cofferdam a11(are referring to Fig. 4):
Filling cohesive soil being filled to solution cavity 8 top mark high, earth volume is surveyed report in detail and is carried out rough calculation according to advance borehole, and statistics fills cohesive soil total amount when filling; The measured value filling cohesive soil end face absolute altitude is identical with the measured value of the Percussion Piles degree of depth, should confirm whether filled height is consistent with geologic report after filling;
B2, filling bagged cement, making water-stop curtain:
B21, throwing bagged cement 2: the amount of filling out of mixing of cement is determined according to the cohesive soil gauge filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil; The mode adopting artificial throwing is filled with (referring to Fig. 5);
Mechanical agitation at the bottom of B22, employing hole, constitutes water-stop curtain 3(referring to Fig. 6 by the mixture that cohesive soil and cement mixing are formed);
Utilizing block stamp 5 cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp 5 again and mix after the bagged cement one-time filling of each solution cavity, punching is mixed the time and is determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B3, pour rock again: constitute water-stop curtain pile holes protecting wall structure 42 at water-stop curtain 3 and process structure 1A:(referring to Fig. 7, Fig. 1 to form Percussion Piles solution cavern in the bed rock)
B31, the punching of cohesive soil and cement is mixed after uniformly, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that karst cave treatment complete after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up;
B32, punching: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, after entering rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency.
Embodiment four:
A kind of lava grows by force the construction method of construction site filled type geological disposal structure, it is that the lava grown by force described in construction site formation embodiment two at lava grows by force construction site filled type geological disposal structure B, pile foundation is passed through the construction method of solution cavity, the method is to adopt to insert in underground karst cavity by the flexible material that filling slabstone and cohesive soil become with cement mixing, form solution cavity filled type geological disposal structure I B thus constituting protection system in solution cavity, described lava is grown by force the construction method of construction site filled type geological disposal structure B and is comprised the following steps (referring to Fig. 8 ~ Figure 15):
Overall preparation before A, construction:
A1, according to construction drawing, stake position or diaphram wall centrage are measured, it is determined that the position of advance drilling-i.e. geology verification;
A2, geology are verified to carry out the probing of stake position by stake, and each position or pilot hole arrange that at least one is holed, and probing enters stablizes basement rock, and the degree of depth is not less than 8��10 times of a footpath;
A3, according to results of drilling, it is determined that the Percussion Piles punching degree of depth or diaphram wall enter the degree of depth of the rock degree of depth, the position of solution cavity 8 and solution cavity 8, and supporting course can be stablized depth of stratum at the bottom of should meeting and cannot be less than 6��8 times of a footpath;
B, making solution cavity filled type geological disposal structure I B:
B1, making cofferdam b:(are referring to Fig. 8)
Filling slabstone being filled to solution cavity 8 top mark high, cubic meter of stone amount is surveyed report in detail and is carried out rough calculation according to advance borehole, and statistics fills slabstone total amount when filling; The measured value filling out punching stone end face absolute altitude is identical with the measured value of the Percussion Piles degree of depth, should confirm whether filled height is consistent with geologic report after filling;
B2, subsection filling form water-stop curtain:
B21, first filler form the 1st section of water-stop curtain 31:
B211, punching: go out the hole of 4-8m at ragstone layer top, in order to ensure that hole wall does not cave in, the punching degree of depth more than 10m, and can not adopt intermittent slurry injection technique, ensures hole wall safety (referring to Fig. 9);
B212, fill cohesive soil to hole, and fill bagged cement 2: cement adopts bagged cement 2, and the amount of filling out of mixing of cement is determined according to the cohesive soil gauge filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil;
The mode adopting artificial throwing is filled with (referring to Figure 10); ;
Mechanical agitation at the bottom of B213, employing hole, constitutes epimere water-stop curtain 31 by the mixture that cohesive soil and cement mixing are formed, Specific construction following (referring to Figure 11):
Utilize block stamp 5 cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp again after the bagged cement one-time filling of each solution cavity and mix, by the reciprocating motion of block stamp, by uniform to clay and cement mixing; Punching is mixed in process to be beneficial to being sufficiently mixed of cement and cohesive soil, the big stroke block stamp adopting stroke to be 4m, and punching is mixed the time and determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B22, secondary are filled and are formed the 2nd section of water-stop curtain:
B221, secondary punching: mixed after uniformly with cement punching by cohesive soil, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that solution cavity 8 processed after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up; Pouring deeper of ragstone layer again, in order to ensure hole wall safety, each depth is not preferably greater than 8m; Specific construction is as follows: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, and after entering ragstone layer or rock stratum, the big stroke punching installation adopting stroke to be 2-4m impacts (referring to Figure 12) with block stamp low frequency;
B222, clear hole process: the clear hole processing mode of pile foundation or diaphram wall is as follows respectively:
Process to pile foundation: first adopt rubble to draw slag cylinder and clear up by the stone of big particle diameter, then after adopting clear hole to process, could be entered next step and construct;
Process to diaphram wall: in underground continuous wall groove segment, rock or sealing layer rush broken after, first with chute forming machine, crushed stone is pulled out, then adopts clear hole to process, just can carry out next step construction;
B223, again insert cohesive soil and bagged cement:
Fill cohesive soil to hole, arrive epimere water-stop curtain 31 place, and fill bagged cement 2: cement adopts bagged cement, the amount of filling out of mixing of cement is determined according to the cohesive soil gauge filled, being no less than the 20% of cohesive soil quality of filling soil, namely often filling the cement amount that the cohesive soil of 1m3 mixes is 300��400Kg; In order to prevent from blocking completed stake holes, fill bagged cement and adopt the mode of artificial throwing to be filled with (referring to Figure 13);
Mechanical agitation at the bottom of B224, employing hole, constitutes the 2nd section of water-stop curtain 32(referring to Figure 14 by the mixture that cohesive soil and cement mixing are formed), Specific construction is as follows:
Utilize block stamp 5 cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp again after the bagged cement one-time filling of each solution cavity and mix, by the reciprocating motion of block stamp, by uniform to clay and cement mixing; Punching is mixed in process to be beneficial to being sufficiently mixed of cement and cohesive soil, the big stroke block stamp adopting stroke to be 4m, and punching is mixed the time and determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
C, pour rock again: constitute water-stop curtain pile holes protecting wall structure 42 to form Percussion Piles solution cavern in the bed rock process structure 1A(referring to Figure 15, Fig. 2 at water-stop curtain);
C1, the punching of cohesive soil and cement is mixed after uniformly, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that karst cave treatment complete after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up;
C2, punching: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, after entering rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency.
Among the B2 step of the embodiment of the present invention three, embodiment four, the filling cohesive soil of B212 and B223 step and bagged cement make in water-stop curtain step, described cohesive soil is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value be not less than 4 cohesive soil, described cement be among Portland cement, portland slag cement, Portland pozzolana cement or Portland fly ash cement any one or multiple, its property indices is not less than 42.5# cement; The consumption of cement is determined according to the Dosage calculation of the filling cohesive soil filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil; For easy construction, can be estimated as: often filling the cement amount that the cohesive soil of 1m3 mixes is 300��400Kg;
In order to prevent blocking completed stake holes, the mode of artificial throwing is adopted to be filled with.
In the embodiment of the present invention three, embodiment four, the geological disposal mode of continuous wall trench underground is consistent with pile foundation, and simply punch pattern is had any different, referring to Figure 16, Figure 17,1. 2. 3. 4. 5. for the order of punching in figure; Underground continuous wall punching mode in the present invention is known technology, does not repeat them here.
A kind of lava of the present invention grows by force that construction site filled type geological disposal structure can be additionally used in Percussion Piles, rotation is dug the various ends such as stake and held type pile foundation geological disposal, if digging stake for rotation, then block stamp changes drill bit into, and form of construction work is consistent, and the selection of drill bit determines according to soil property (or rock).
Claims (7)
1. a lava grows by force construction site filled type geological disposal structure, including construction site geologic structure II, solution cavity filled type geological disposal structure I, it is top layer viscous soil horizon (6) from top to bottom successively that described lava grows by force the construction site geologic structure II of construction site; There is the rock-soil layer (7) that solution cavity is grown, it is arranged in the solution cavity (8) of rock-soil layer (7), it is characterized in that: described solution cavity filled type geological disposal structure I includes the cofferdam (1) being arranged in solution cavity (8), being used for filling solution cavity, it is positioned at the water-stop curtain (3) that cofferdam (1) is made up of the mixture of cohesive soil Yu cement, and in water-stop curtain (3) formed water-stop curtain pile holes protecting wall (42), this water-stop curtain pile holes protecting wall (42) is connected with steel structure formula pile holes protecting wall (41) being positioned at top layer viscous soil horizon.
2. lava according to claim 1 grows by force construction site filled type geological disposal structure, it is characterized in that: described solution cavity filled type geological disposal structure I is solution cavity filled type geological disposal structure I A, the described cofferdam for filling solution cavity is the cofferdam a(11 being made up of filling cohesive soil), the filling cohesive soil forming cofferdam (1) for filling solution cavity is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value is not less than the cohesive soil of 4, the cohesive soil height filled in the cofferdam (1) filling solution cavity is equal with solution cavity hole top mark height.
3. lava according to claim 1 grows by force construction site filled type geological disposal structure, it is characterized in that: described solution cavity filled type geological disposal structure I is solution cavity filled type geological disposal structure I B, the described cofferdam for filling solution cavity is the cofferdam b(12 being made up of filling slabstone), the slabstone height of filling is equal with solution cavity hole top mark height.
4. a kind of lava according to claim 1,2 or 3 grows by force construction site filled type geological disposal structure, it is characterized in that: constitute in the cohesive soil of water-stop curtain (3) and the mixture of cement, described cohesive soil is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value be not less than 4 cohesive soil, described cement be among Portland cement, portland slag cement, Portland pozzolana cement or Portland fly ash cement any one or multiple, its property indices is not less than 42.5# cement; The consumption of cement is determined according to the Dosage calculation of the filling cohesive soil filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil.
5. a lava grows by force the construction method of construction site filled type geological disposal structure, it is grow by force construction site at lava to form the lava described in claim 2 and grow by force construction site filled type geological disposal structure pile foundation is passed through the construction method of solution cavity, it is characterized in that: the method is to adopt to insert in underground karst cavity by the flexible material that cohesive soil and cohesive soil become with cement mixing, form solution cavity filled type geological disposal structure I A thus constituting protection system in solution cavity, described lava is grown by force the construction method of construction site filled type geological disposal structure and is comprised the following steps:
Overall preparation before A, construction
A1, according to construction drawing, stake position or diaphram wall centrage are measured, it is determined that the position of advance drilling-i.e. geology verification;
A2, geology are verified to carry out the probing of stake position by stake, and each position or pilot hole arrange that at least one is holed, and probing enters stablizes basement rock, and the degree of depth is not less than 8��10 times of a footpath;
A3, according to results of drilling, it is determined that the Percussion Piles punching degree of depth or diaphram wall enter the degree of depth of the rock degree of depth, the position of solution cavity (8) and solution cavity (8), and supporting course can be stablized depth of stratum at the bottom of should meeting and cannot be less than 6��8 times of a footpath;
B, making solution cavity filled type geological disposal structure I A:
B1, making cofferdam a:
Filling cohesive soil being filled to solution cavity (8) top mark high, earth volume is surveyed report in detail and is carried out rough calculation according to advance borehole, and statistics fills cohesive soil total amount when filling; The measured value filling cohesive soil end face absolute altitude is identical with the measured value of the Percussion Piles degree of depth, should confirm whether filled height is consistent with geologic report after filling;
B2, filling bagged cement, making water-stop curtain:
B21, throwing bagged cement (2): the amount of filling out of mixing of cement is determined according to the cohesive soil gauge filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil; The mode adopting artificial throwing is filled with;
Mechanical agitation at the bottom of B22, employing hole, constitutes water-stop curtain (3) by the mixture that cohesive soil and cement mixing are formed:
Utilizing block stamp (5) cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp (5) again and mix after the bagged cement one-time filling of each solution cavity, punching is mixed the time and is determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B3, pour rock again: constitute water-stop curtain pile holes protecting wall structure (42) at water-stop curtain (3) and process structure to form Percussion Piles solution cavern in the bed rock:
B31, the punching of cohesive soil and cement is mixed after uniformly, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that karst cave treatment complete after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up;
B32, punching: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, after entering rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency.
6. a lava grows by force the construction method of construction site filled type geological disposal structure, it is that the lava grown by force described in construction site formation claim 3 at lava grows by force construction site filled type geological disposal structure, pile foundation is passed through the construction method of solution cavity, it is characterized in that: the method is to adopt to insert in underground karst cavity by the flexible material that filling slabstone and cohesive soil become with cement mixing, form solution cavity filled type geological disposal structure I B thus constituting protection system in solution cavity, described lava is grown by force the construction method of construction site filled type geological disposal structure and is comprised the following steps:
Overall preparation before A, construction
A1, according to construction drawing, stake position or diaphram wall centrage are measured, it is determined that the position of advance drilling-i.e. geology verification;
A2, geology are verified to carry out the probing of stake position by stake, and each position or pilot hole arrange that at least one is holed, and probing enters stablizes basement rock, and the degree of depth is not less than 8��10 times of a footpath;
A3, according to results of drilling, it is determined that the Percussion Piles punching degree of depth or diaphram wall enter the degree of depth of the rock degree of depth, the position of solution cavity 8 and solution cavity 8, and supporting course can be stablized depth of stratum at the bottom of should meeting and cannot be less than 6��8 times of a footpath;
B, making solution cavity filled type geological disposal structure I B:
B1, making cofferdam b:
Filling slabstone being filled to solution cavity (8) top mark high, cubic meter of stone amount is surveyed report in detail and is carried out rough calculation according to advance borehole, and statistics fills slabstone total amount when filling; The measured value filling out punching stone end face absolute altitude is identical with the measured value of the Percussion Piles degree of depth, should confirm whether filled height is consistent with geologic report after filling;
B2, subsection filling form water-stop curtain:
B21, first filler form the 1st section of water-stop curtain (31):
B211, punching: go out the hole of 4-8m at ragstone layer top, in order to ensure that hole wall does not cave in, the punching degree of depth more than 10m, and can not adopt intermittent slurry injection technique, ensures hole wall safety;
B212, fill cohesive soil to hole, and fill bagged cement (2):
Mechanical agitation at the bottom of B213, employing hole, constitutes epimere water-stop curtain (31) by the mixture that cohesive soil and cement mixing are formed, and Specific construction is as follows:
Utilizing block stamp (5) cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp (5) again and mix after the bagged cement one-time filling of each solution cavity, punching is mixed the time and is determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B22, secondary are filled and are formed the 2nd section of water-stop curtain:
B221, secondary punching: mixed after uniformly with cement punching by cohesive soil, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that solution cavity (8) processed after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up; Pouring deeper of ragstone layer again, in order to ensure hole wall safety, each depth is not preferably greater than 8m; Specific construction is as follows: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, and after entering ragstone layer or rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency;
B222, clear hole process: the clear hole processing mode of pile foundation or diaphram wall is as follows respectively:
Process to pile foundation: first adopt rubble to draw slag cylinder and clear up by the stone of big particle diameter, then after adopting clear hole to process, could be entered next step and construct;
Process to diaphram wall: in underground continuous wall groove segment, rock or sealing layer rush broken after, first with chute forming machine, crushed stone is pulled out, then adopts clear hole to process, just can carry out next step construction;
B223, again insert cohesive soil and bagged cement, fill cohesive soil to hole, arrive epimere water-stop curtain (31) place, and fill bagged cement (2):
Mechanical agitation at the bottom of B224, employing hole, constitutes the 2nd section of water-stop curtain (32) by the mixture that cohesive soil and cement mixing are formed, and Specific construction is as follows:
Utilizing block stamp (5) cohesive soil and cement fully to be rushed to mix uniformly, carry out punching with block stamp again and mix after the bagged cement one-time filling of each solution cavity, punching is mixed the time and is determined according to solution cavity size and the amount of banketing, and is not less than 20min, less than 45min;
B23, formation lowermost water-stop curtain: repeat n B22 step so that it is fill water-stop curtain piecemeal, until being filled to bottom solution cavity; Form composition and there is 2+n section water-stop curtain; The span of n is: n is any one number in 0,1,2,3,4 or 5;
C, pour rock again, process structure forming Percussion Piles solution cavern in the bed rock; After solution cavity (8) is disposed, rock can be poured again, complete drilling construction; Specific construction is as follows:
C1, the punching of cohesive soil and cement is mixed after uniformly, stand 12h rear and carry out multiple punching construction again; First measure the degree of depth bottom a stake holes before multiple punching, it may be assumed that karst cave treatment complete after the degree of depth; Compared with pushing up the degree of depth with the hole of geologic prospect data, it is ensured that implant there was not hole to push up;
C2, punching: the punching installation of little stroke and the block stamp repeated stock that solution cavity filling position adopts stroke to be 1-1.5m, after entering rock stratum, the big stroke punching installation adopting stroke to be 2-4m is impacted with block stamp low frequency.
7. a kind of lava according to claim 5 or 6 grows by force the construction method of construction site filled type geological disposal structure, it is characterized in that: filling cohesive soil and the B2 of bagged cement making water-stop curtain, in B212 and B223 step, described cohesive soil is that its natural density is not less than 17.5KN/m3, water content is not more than 70%, pH value is not less than the cohesive soil of 4, described cement is Portland cement, portland slag cement, among Portland pozzolana cement or Portland fly ash cement any one or multiple, its property indices is not less than 42.5# cement, the consumption of cement is determined according to the Dosage calculation of the filling cohesive soil filled, and by weight, cement consumption is no less than the 20% of cohesive soil quality of filling soil, the mode adopting artificial throwing is filled with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051830.6A CN105625293B (en) | 2016-01-26 | 2016-01-26 | Lava develops by force construction site filled type geological disposal structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610051830.6A CN105625293B (en) | 2016-01-26 | 2016-01-26 | Lava develops by force construction site filled type geological disposal structure and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105625293A true CN105625293A (en) | 2016-06-01 |
| CN105625293B CN105625293B (en) | 2017-09-12 |
Family
ID=56040603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610051830.6A Expired - Fee Related CN105625293B (en) | 2016-01-26 | 2016-01-26 | Lava develops by force construction site filled type geological disposal structure and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105625293B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926658A (en) * | 2016-05-10 | 2016-09-07 | 中国科学院武汉岩土力学研究所 | Capsule type pouring and filling method and structure for large-size karst pile foundation construction |
| CN106245623A (en) * | 2016-08-22 | 2016-12-21 | 贵州建工集团第建筑工程有限责任公司 | A kind of karst landform Supper-tall Building Foundations reinforcement solutions method |
| CN107938676A (en) * | 2017-11-21 | 2018-04-20 | 重庆建工市政交通工程有限责任公司 | A kind of pile base construction method for passing through full packing type solution cavity |
| CN108049395A (en) * | 2017-12-12 | 2018-05-18 | 广州市城市规划勘测设计研究院 | A kind of anti-collapse impact holing construction method in complex karst place |
| CN108930263A (en) * | 2018-09-04 | 2018-12-04 | 商丘工学院 | A kind of basement process structure based on level of ground water |
| CN110055948A (en) * | 2019-04-29 | 2019-07-26 | 华东交通大学 | A kind of big Treatment Methods of Karst Foundation of depth and device |
| CN111042146A (en) * | 2019-11-11 | 2020-04-21 | 中铁七局集团第二工程有限公司 | Construction method of deep foundation pit supporting anti-seepage system of coastal karst stratum |
| CN113372067A (en) * | 2021-07-07 | 2021-09-10 | 华邦建投集团股份有限公司 | Fast-curing pile foundation karst cave backfill and preparation method thereof |
| CN113605434A (en) * | 2021-09-06 | 2021-11-05 | 中铁二十二局集团第二工程有限公司 | Bridge pile foundation construction method for high-speed railway karst |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009046896A (en) * | 2007-08-21 | 2009-03-05 | Shusuke Ito | Soil bearing capacity increasing technique for soft ground |
| CN104278667A (en) * | 2013-07-02 | 2015-01-14 | 浙江国泰建设集团有限公司 | Underground karst cave filling treatment method |
| CN104818712A (en) * | 2015-04-07 | 2015-08-05 | 浙江大华建设集团有限公司 | Construction method of cast-in-situ bored pile suitable for karst cave geology |
| CN205742136U (en) * | 2016-01-26 | 2016-11-30 | 广西建工集团第五建筑工程有限责任公司 | Lava grows by force construction site filled type geological disposal structure |
-
2016
- 2016-01-26 CN CN201610051830.6A patent/CN105625293B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009046896A (en) * | 2007-08-21 | 2009-03-05 | Shusuke Ito | Soil bearing capacity increasing technique for soft ground |
| CN104278667A (en) * | 2013-07-02 | 2015-01-14 | 浙江国泰建设集团有限公司 | Underground karst cave filling treatment method |
| CN104818712A (en) * | 2015-04-07 | 2015-08-05 | 浙江大华建设集团有限公司 | Construction method of cast-in-situ bored pile suitable for karst cave geology |
| CN205742136U (en) * | 2016-01-26 | 2016-11-30 | 广西建工集团第五建筑工程有限责任公司 | Lava grows by force construction site filled type geological disposal structure |
Non-Patent Citations (2)
| Title |
|---|
| 广东地下工程编审委员会: "《广东地下工程》", 30 June 2004 * |
| 张媛媛: "五年耕耘筑就科技发展新丰碑", 《HTTP://WWW.GXWJW.COM.CN/GSXW_VIEW.ASPX?ID=3437》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105926658A (en) * | 2016-05-10 | 2016-09-07 | 中国科学院武汉岩土力学研究所 | Capsule type pouring and filling method and structure for large-size karst pile foundation construction |
| CN106245623A (en) * | 2016-08-22 | 2016-12-21 | 贵州建工集团第建筑工程有限责任公司 | A kind of karst landform Supper-tall Building Foundations reinforcement solutions method |
| CN106245623B (en) * | 2016-08-22 | 2018-12-04 | 贵州建工安顺建筑工程有限公司 | A kind of karst landform Supper-tall Building Foundations reinforcement solutions method |
| CN107938676A (en) * | 2017-11-21 | 2018-04-20 | 重庆建工市政交通工程有限责任公司 | A kind of pile base construction method for passing through full packing type solution cavity |
| CN108049395A (en) * | 2017-12-12 | 2018-05-18 | 广州市城市规划勘测设计研究院 | A kind of anti-collapse impact holing construction method in complex karst place |
| CN108930263A (en) * | 2018-09-04 | 2018-12-04 | 商丘工学院 | A kind of basement process structure based on level of ground water |
| CN110055948A (en) * | 2019-04-29 | 2019-07-26 | 华东交通大学 | A kind of big Treatment Methods of Karst Foundation of depth and device |
| CN111042146A (en) * | 2019-11-11 | 2020-04-21 | 中铁七局集团第二工程有限公司 | Construction method of deep foundation pit supporting anti-seepage system of coastal karst stratum |
| CN113372067A (en) * | 2021-07-07 | 2021-09-10 | 华邦建投集团股份有限公司 | Fast-curing pile foundation karst cave backfill and preparation method thereof |
| CN113605434A (en) * | 2021-09-06 | 2021-11-05 | 中铁二十二局集团第二工程有限公司 | Bridge pile foundation construction method for high-speed railway karst |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105625293B (en) | 2017-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105625293B (en) | Lava develops by force construction site filled type geological disposal structure and its construction method | |
| CN103774675B (en) | Combined double-row-pile combined vertical prestress anchor rod supporting system and construction method thereof | |
| CN103321260B (en) | Interval boring cuts stake inclination correction method | |
| CN105201001B (en) | Composite seepage preventing structure for large karst cave in karst region and construction method thereof | |
| CN103924602B (en) | Deep Thick Soft Ground foundation ditch construction method | |
| CN106088099B (en) | A kind of subway foundation pit anchor cable processing method | |
| Bell | Methods of treatment of unstable ground | |
| CN104746505A (en) | Method for treating miscellaneous fill foundation combing dynamic consolidation and compaction grouting | |
| CN206070508U (en) | Device for reinforcing foundation | |
| Fischer et al. | Karst site remediation grouting | |
| CN111852515A (en) | Tunnel stratum pre-reinforcement comprehensive grouting method | |
| CN108867673A (en) | A kind of underwater prevention method in the foundation pit based on the curtain that draws water | |
| CN106013178B (en) | A kind of placement method of shallow buried type Karst surface collapse | |
| CN108071110A (en) | Rotary drilling rig Pile method under complex geological condition | |
| CN104652427A (en) | Construction method of drilling pile | |
| CN113010997A (en) | Early warning treatment method for pile foundation impact hole-forming construction accidents in karst development area | |
| CN217053672U (en) | Large-diameter inspection well pile drilling method construction system | |
| CN103015430A (en) | Long auger pressure filling steel reinforced cement-soil pile foundation pit water-resisting and supporting method | |
| CN109555158A (en) | A kind of piping lane construction method | |
| CN205742136U (en) | Lava grows by force construction site filled type geological disposal structure | |
| Wannenmacher et al. | Water ingress and reduction measures in the headrace tunnel at the Uma Oya multipurpose project | |
| CN114993248A (en) | Ground settlement monitoring method | |
| CN87100318A (en) | Secretly digging method with predisposed roof | |
| CN111333374A (en) | Carrier pile machine rammed karst cave filler and karst cave filling method | |
| CN105133629B (en) | A kind of determination method of refuse landfill Groundwater Control System Halt water curtain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 |