CN114703795A - Construction method of waterproof curtain of water retaining building in karst development area - Google Patents
Construction method of waterproof curtain of water retaining building in karst development area Download PDFInfo
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- 238000011161 development Methods 0.000 title claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 239000011435 rock Substances 0.000 claims abstract description 51
- 238000005192 partition Methods 0.000 claims abstract description 17
- 230000002265 prevention Effects 0.000 claims abstract description 16
- 238000000638 solvent extraction Methods 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims description 26
- 238000005260 corrosion Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 22
- 230000003628 erosive effect Effects 0.000 claims description 20
- 239000004568 cement Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 8
- 239000011083 cement mortar Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
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- 239000003795 chemical substances by application Substances 0.000 claims description 3
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- 230000004075 alteration Effects 0.000 claims description 2
- 239000003673 groundwater Substances 0.000 claims description 2
- 235000019994 cava Nutrition 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
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- 239000004927 clay Substances 0.000 description 2
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- 230000005856 abnormality Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 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
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Abstract
The invention discloses a construction method of a waterproof curtain of a water retaining building in a karst development area, which comprises the following steps: determining the rock mass leakage form, and performing curtain partition and seepage prevention treatment schemes. Determining the seepage form of rock masses according to the karst development characteristics and the tectonic development characteristics of the rock masses in different areas within the range of the seepage-proof curtain of the dam in the karst development area, partitioning the seepage-proof curtain according to different seepage forms, adopting corresponding seepage-proof treatment schemes according to different partitions, and finally forming the seepage-proof curtain to ensure the safe operation of the dam in the karst development area.
Description
Technical Field
The invention discloses a seepage-proofing method for a dam curtain partition in a karst development area. In particular to a construction method of an impervious curtain of a water retaining building in a karst development area.
Background
The impervious curtain is a main component of a water conservancy and hydropower water retaining building, and whether the impervious curtain can be successfully implemented directly relates to whether water can be successfully stored in a water conservancy and hydropower water storage facility. Along with the development of the construction of water conservancy and hydropower facilities in karst development areas, the seepage-proofing technology of the water conservancy, hydropower and water storage facilities in the karst development areas is continuously improved, in order to save energy, reduce resource consumption, reduce the risk of a curtain and facilitate construction, the construction is carried out with stronger pertinence and precision, seepage-proofing subareas are carried out according to the actual geological conditions, different construction processes are adopted in each seepage-proofing subarea, the construction method is optimized, and the effective and safe operation of the curtain is ensured. At present, aiming at the seepage-proof curtain subarea of a karst area, a construction process with strong pertinence is adopted aiming at different subareas, and a complete set of general process and method are not available.
The impervious subarea is divided by different seepage forms according to the differences of the integrity, the structural development degree and the karst development degree of the rock body in the impervious curtain range. Different seepage-proofing subareas have larger difference in seepage form, and the seepage-proofing curtain has great difference in forming conditions, so that effective and implementable construction processes need to be found for different geological conditions. In summary, the accuracy of the partitioning of the impervious curtain in the karst development area and the rationality of the construction scheme are the key points of effectiveness and reliability of the impervious curtain and the key points of success of the water conservancy and hydropower water storage engineering.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction method of an impervious curtain of a water retaining building in a karst development area, wherein a corresponding construction method is adopted according to the partition of the curtain. The seepage-proofing curtain of the dam of the karst development area is required to be partitioned according to different seepage forms, and then corresponding seepage-proofing treatment schemes are adopted for different partitions, so that the safe operation of the dam of the karst development area is ensured.
In order to solve the technical problems, the invention adopts the technical scheme that: a construction method for an impervious curtain of a water retaining building in a karst development area is characterized in that the impervious curtain is partitioned in a foundation and a bank slope connected with a dam foundation, and a differential construction method is adopted according to the partition of the curtain to form a continuous vertical curtain to stop seepage, and sequentially comprises the following steps:
(1) determining the rock mass leakage form: in the range of the impervious curtain, evaluating the seepage form of the rock mass according to the karst development characteristics and the tectonic development characteristics of the rock mass in different areas;
(2) partitioning a curtain: in the range of the impervious curtain, partitioning the impervious curtain according to the seepage form of rock masses in different areas;
(3) and (3) an anti-seepage treatment scheme: and determining the impervious construction treatment measures of the curtain according to the seepage characteristics of rock masses in different partitions of the impervious curtain, and performing corresponding construction.
The determined rock mass leakage forms are divided into the following four types:
firstly, bedrock fracture-type leakage is distributed in a non-karst development area within the range line of an impervious curtain of a dam, the development interval of rock body fractures in the area is less than 50cm, the opening width of a fracture surface is more than 0.5mm, the karst characteristic is not obvious, rock erosion is obvious, and underground water in the area moves in a fracture network;
secondly, corrosion crack type seepage is distributed in a karst development area within the range line of the dam impervious curtain, the development interval of cracks in the area is less than 10cm, the opening width of the crack surface is more than 5mm, a corrosion cavity develops, calcium slips are attached along the crack surface, the karst characteristic is obvious, the rock alteration is strong, the karst development characteristic is corrosion crack type karst and corrosion pore type karst, and underground water in the area moves in a network formed by the corrosion cracks and the corrosion pores;
the karst pipeline type leakage is distributed in a karst development area within the range line of the dam seepage-proof curtain and is expressed as a pipeline-shaped karst cave penetrating through the curtain, the karst cave is filled completely, filled half and not filled, the fillers are distributed in a layered mode, and underground water in the area mainly moves in the karst pipeline;
leakage along the construction surface, distribution in fault and influence zone within the range line of the dam seepage-proofing curtain, the construction surface in the zone is more in open state, the open width is more than 5mm, karst characteristic is obvious, erosion along the construction surface is stronger, the curtain penetrates in surface form, and groundwater in the zone moves in the surface-form construction channel.
The performing of curtain partitioning includes:
firstly, a bedrock fracture type seepage development area takes rock mass seepage form distributed within the range line of a dam seepage-proofing curtain as a bedrock fracture type seepage part, and the seepage form of the area after water storage of a reservoir is mainly bedrock fracture type seepage;
secondly, the erosion crack type seepage development area takes rock mass seepage form distributed within the range line of the dam impervious curtain as erosion crack type seepage, and the area seepage form after the reservoir stores water takes the erosion crack type seepage as the main mode;
the karst pipeline type leakage development area is distributed within the range line of the dam impervious curtain, the rock mass leakage form is karst pipeline type leakage, and the region leakage form is mainly karst pipeline type leakage after the reservoir stores water;
and fourthly, along the structural surface leakage development area, the rock mass leakage mode distributed within the range line of the dam impervious curtain is leakage along the structural surface, and after the reservoir stores water, the region leakage mode is mainly leakage along the structural surface.
The barrier treatment protocol comprises:
firstly, performing seepage-proofing treatment in a bedrock fracture type seepage development area by adopting cement slurry to perform curtain grouting so as to form a continuous vertical curtain to stop seepage;
secondly, performing anti-seepage treatment in a curtain grouting manner by adopting a cement slurry and treating agent method in the corrosion crack type seepage development area to form a continuous vertical curtain to stop seepage;
excavating the karst filling materials with the shallow part cleaned conditionally in the karst pipeline type seepage development area, flushing the karst filling materials in the deep seepage-proofing curtain area by adopting high-pressure wind and water in a combined manner, backfilling the karst filling materials by adopting cement mortar after cleaning, then performing curtain grouting seepage prevention, and performing curtain grouting seepage prevention after backfilling the cement mortar in the non-filled karst cave;
fourthly, adopting a grouting plugging mode to process along the leakage development area of the structural surface, and then performing curtain grouting seepage prevention.
The invention has the beneficial effects that:
(1) the invention provides a construction method which is strong in pertinence, reasonable in construction, energy-saving, economical and practical, aims at the seepage-proof curtain in the karst development area, solves the problems that the seepage-proof curtain in the karst area is difficult to implement, the difference of curtain effects is large and the like, and further ensures the normal operation of the seepage-proof curtain in the engineering.
(2) The method has guiding and reference functions on the determination of the seepage-proofing curtain partition and the construction scheme of the hydropower and water storage project in the karst development area, has reference functions on other seepage-proofing curtains in other areas and other types, and is beneficial to improving the design technical level of the seepage-proofing curtain through the research on the rock seepage form, the seepage-proofing curtain partition and the seepage-proofing treatment scheme in the karst development area.
Drawings
FIG. 1 is a sectional view of a dam curtain section impervious to the method of the present invention;
in the figure: 1-a terrain line; 2- - -dam crest elevation line; 3- - -underground water line; 4- - -river water line; 5- -the seepage-proofing curtain is off-line; 6- - -erosion crack type seepage development area range line; 7- - -karst pipeline type seepage development area range line; 8- - -bedrock fracture type seepage development area; 9- -erosion fissure type leakage development zone; 10- -karst pipe type leakage development zone; 11- -leakage development zone along the tectonic surface; 12-fault plane (or large fracture plane, rock plane, etc.).
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The construction method of the seepage-proof curtain of the water retaining building in the karst development area comprises the following steps: determining the rock mass leakage form, and performing curtain partition and seepage prevention treatment schemes.
And the determined rock mass leakage form is evaluated according to the karst development characteristics and the tectonic development characteristics of rock masses in different areas within the range of the impervious curtain. The method comprises the following steps: firstly, bedrock fracture-type leakage is distributed in a non-karst development area within the range line of an impervious curtain of a dam, the development interval of rock body fractures in the area is less than 50cm, the opening width of a fracture surface is more than 0.5mm, the karst characteristic is not obvious, rock erosion is obvious, and underground water in the area moves in a fracture network; secondly, corrosion crack type seepage is distributed in a karst development area within the range line of the dam impervious curtain, the development interval of cracks in the area is smaller than 10cm, the opening width of crack surfaces is larger than 5mm, corrosion cavities develop, calcium slips are attached along the crack surfaces, the karst characteristics are obvious, rock corrosion is strong, and the karst development characteristics are corrosion crack type karst and corrosion pore type karst. The underground water in the area moves in a network formed by the erosion cracks and the erosion holes; and thirdly, karst pipeline type leakage is distributed in a karst development area within the range line of the dam seepage-proof curtain, mainly expressed as a pipeline-shaped karst cave penetrating through the curtain and generally distributed at the core part of the corrosion crack type leakage development area. The karst cave has three types of full filling, half filling and no filling, and the filling is distributed in a layered mode. Underground water in the area mainly moves in the karst pipeline; leakage along the construction surface, distribution in fault and influence zone within the range line of the dam seepage-proofing curtain, opening state of the construction surface in the zone, opening width larger than 5mm, obvious karst feature, strong erosion along the construction surface, and surface penetrating through the curtain. The water in the area moves in the planar construction channel.
And the curtain partitioning is to partition the impervious curtain according to the seepage form of rock masses in different areas within the range of the impervious curtain. The method comprises the following steps: firstly, a bedrock fracture type seepage development area takes rock mass seepage form distributed within the range line of a dam seepage-proofing curtain as a bedrock fracture type seepage part, and the seepage form of the area after water storage of a reservoir is mainly bedrock fracture type seepage; secondly, the erosion crack type seepage development area takes rock mass seepage form distributed within the range line of the dam impervious curtain as erosion crack type seepage, and the area seepage form after the reservoir stores water takes the erosion crack type seepage as the main mode; the karst pipeline type leakage development area is distributed within the range line of the dam impervious curtain, the rock mass leakage form is karst pipeline type leakage, and the region leakage form is mainly karst pipeline type leakage after the reservoir stores water; and fourthly, along the structural surface leakage development area, the rock mass leakage mode distributed within the range line of the dam impervious curtain is leakage along the structural surface, and after the reservoir stores water, the region leakage mode is mainly leakage along the structural surface.
The seepage-proofing treatment scheme is to determine the seepage-proofing construction treatment measures of the curtain according to the seepage characteristics of rock masses in different partitions of the seepage-proofing curtain. The method comprises the following steps: firstly, performing seepage-proofing treatment in a bedrock fracture type seepage development area by adopting cement slurry to perform curtain grouting so as to form a continuous vertical curtain to stop seepage; secondly, performing seepage-proofing treatment in a curtain grouting mode by adding a treating agent into cement slurry in the corrosion crack type seepage development area to form a continuous vertical curtain to stop seepage; and thirdly, excavating the karst fillers with the shallow parts cleaned conditionally in the karst pipeline type seepage development area, flushing the karst fillers in the deep seepage-proofing curtain area by adopting high-pressure air and water in a combined manner, backfilling by adopting cement mortar after cleaning, and then performing curtain grouting seepage proofing. Carrying out curtain grouting seepage prevention after backfilling the unfilled karst cave with cement mortar; fourthly, adopting a grouting plugging mode to process along the leakage development area of the structural surface, and then performing curtain grouting seepage prevention.
The following is described in detail with specific reference to examples:
as shown in figure 1, the maximum dam height of a project is 173.2m, the maximum height of an asphalt concrete core wall reaches 132m, the dam seepage prevention design adopts a form of two rows of main and auxiliary curtains, and the depth of the curtains is controlled to be 5.0m below a 3Lu line. The first row of curtains is a main curtain positioned on the upstream side, and the curtains incline to the upstream; the second row of curtains is a secondary curtain positioned at the downstream side, and the curtains are vertically downward. The erosion cracks in the impervious curtain area of the dam are developed, two larger karst caves filled along the river direction penetrate through the erosion cracks, and in order to ensure the reliability of the impervious curtain of the dam, special treatment needs to be carried out aiming at different karst development conditions so as to ensure the safe operation of the project. The engineering combines the engineering practice of dam seepage prevention, and the following specific scheme of the invention is adopted to achieve the aim of safe seepage prevention of the karst development dam.
In the figure, 1-terrain line; 2- - -dam crest elevation line; 3- - -underground water line; 4- - -river water line; 5- -the seepage-proofing curtain is off-line; 6- - -erosion crack type seepage development area range line; 7- - -karst pipeline type seepage development area range line; 8- - -bedrock fracture type seepage development area; 9- -erosion fissure type leakage development zone; 10- -karst pipe type leakage development zone; 11- -leakage development zone along the tectonic surface; 12-fault plane (or large fracture plane, rock plane, etc.).
The seepage prevention method for the engineering dam curtain subareas comprises the following steps: the seepage-proofing treatment scheme is to determine the seepage-proofing construction treatment measures of the curtain according to the seepage characteristics of rock masses in different partitions of the seepage-proofing curtain. According to the project, detailed investigation and analysis are carried out on the karst development rule of the impervious curtain area of the dam, the seepage form is determined according to the karst development characteristics of rock masses in different areas, the curtain is partitioned according to the seepage form, and then a non-corresponding curtain seepage prevention treatment scheme is adopted according to different partitions.
The impervious curtain of the dam is designed by adopting cement grout to perform curtain grouting, the form of two rows of main and auxiliary curtains is designed, and the depth of the curtains is controlled to be 5.0m below a 3Lu line. The first row of curtains is a main curtain positioned on the upstream side, and the curtains incline to the upstream; the second row of curtains is an auxiliary curtain positioned at the downstream side, and the curtains are vertically downward. The row spacing of curtain grouting holes is 1.2m, the pitch of the holes is 2m, the grouting holes are divided into I-order holes, II-order holes and III-order holes, grouting is closed by adopting an orifice, and segmented grouting is carried out from top to bottom.
Two larger filling type karst caves are developed in the dam impervious curtain, the filling materials of the karst caves are mainly clay, and the corrosion cracks around the karst caves develop; and two larger fault obliquely-penetrating curtains are arranged, and the corrosion in the fault zone is strong. Determining the leakage form of the rock mass according to the karst development characteristics of different areas comprises the following steps: the method comprises the steps of firstly, bed rock fracture type leakage, secondly, erosion fracture type leakage, thirdly, karst pipeline type leakage and fourthly, leakage along a structural surface.
Dividing the impervious curtain of the dam into four areas according to the seepage form of different rock masses of the impervious curtain area, wherein the seepage form comprises the following steps: the method comprises the following steps of firstly, a bedrock fracture type seepage development area, a corrosion fracture type seepage development area, a karst pipeline type seepage development area and a seepage development area along a structural surface.
Determining anti-seepage treatment measures according to four different partitions of the anti-seepage curtain, wherein the anti-seepage treatment measures comprise the following steps: firstly, performing seepage-proofing treatment in a bedrock fracture type seepage development area by adopting cement slurry to perform curtain grouting so as to form a continuous vertical curtain to stop seepage; secondly, performing anti-seepage treatment in a curtain grouting mode by using a cement slurry accelerating coagulant in the corrosion crack type seepage development area to form a continuous vertical curtain to stop seepage; thirdly, a row of curtains are added between two rows of curtains in the karst pipeline type seepage development area, firstly, shallow karst filling clay substances are excavated, two adjacent grouting holes are oppositely penetrated in the middle row of curtains, karst filling substances in a deep seepage-proofing curtain area are jointly washed by high-pressure air and water, cement mortar is backfilled after cleaning is finished, and then curtain grouting seepage proofing is carried out; fourthly, a seepage development area (fault zone corrosion area) along the construction surface is seriously gushed, chemical grouting plugging treatment is adopted, and curtain grouting seepage prevention is carried out.
After curtain grouting is completed, performing a five-point method water pressure test on the dam seepage-proofing curtain for sampling inspection, wherein the detected rock quality in the curtain is generally 1-2 Lu in terms of Lurong value.
And (4) detecting a fatigue high-pressure water pressing test for a curtain area of a karst cave development part, wherein the curtain is not abnormal after a week test.
At present, the dam has been operated safely for 4 years, no curtain abnormality occurs, and no dam abnormal leakage occurs.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.
Claims (4)
1. A construction method of an impervious curtain of a water retaining building in a karst development area is characterized in that the impervious curtain is partitioned in a foundation and a bank slope connected with a dam foundation, and a continuous vertical curtain is formed to block seepage by adopting a differentiated construction method according to the partition of the curtain, and the construction method sequentially comprises the following steps:
(1) determining the rock mass leakage form: in the range of the impervious curtain, evaluating the seepage form of the rock mass according to the karst development characteristics and the tectonic development characteristics of the rock mass in different areas;
(2) partitioning a curtain: in the range of the impervious curtain, partitioning the impervious curtain according to the seepage form of rock masses in different areas;
(3) and (3) an anti-seepage treatment scheme: and determining the impervious construction treatment measures of the curtain according to the seepage characteristics of rock masses in different partitions of the impervious curtain, and performing corresponding construction.
2. The method for constructing the watertight curtain of the water retaining building in the karst development area according to claim 1, wherein the determining of the rock mass seepage form is divided into the following four types:
firstly, bedrock fracture-type leakage is distributed in a non-karst development area within the range line of an impervious curtain of a dam, the development interval of rock body fractures in the area is less than 50cm, the opening width of a fracture surface is more than 0.5mm, the karst characteristic is not obvious, rock erosion is obvious, and underground water in the area moves in a fracture network;
secondly, corrosion crack type seepage is distributed in a karst development area within the range line of the dam impervious curtain, the development interval of cracks in the area is less than 10cm, the opening width of the crack surface is more than 5mm, a corrosion cavity develops, calcium slips are attached along the crack surface, the karst characteristic is obvious, the rock alteration is strong, the karst development characteristic is corrosion crack type karst and corrosion pore type karst, and underground water in the area moves in a network formed by the corrosion cracks and the corrosion pores;
the karst pipeline type leakage is distributed in a karst development area within the range line of the dam seepage-proof curtain and is expressed as a pipeline-shaped karst cave penetrating through the curtain, the karst cave is filled completely, filled half and not filled, the fillers are distributed in a layered mode, and underground water in the area mainly moves in the karst pipeline;
leakage along the construction surface, distribution in fault and influence zone within the range line of the dam seepage-proofing curtain, the construction surface in the zone is more in open state, the open width is more than 5mm, karst characteristic is obvious, erosion along the construction surface is stronger, the curtain penetrates in surface form, and groundwater in the zone moves in the surface-form construction channel.
3. The method for constructing the waterproof curtain of the karst development area water retaining building according to claim 2, wherein the partitioning the curtain comprises:
firstly, a bedrock fracture type seepage development area takes rock mass seepage form distributed within the range line of a dam seepage-proofing curtain as a bedrock fracture type seepage part, and the seepage form of the area after water storage of a reservoir is mainly bedrock fracture type seepage;
secondly, the erosion crack type seepage development area takes rock mass seepage form distributed within the range line of the dam impervious curtain as erosion crack type seepage, and the area seepage form after the reservoir stores water takes the erosion crack type seepage as the main mode;
thirdly, in the karst pipeline type leakage development area, rock mass leakage distributed within the range line of the dam impervious curtain is karst pipeline type leakage, and after the reservoir stores water, the leakage type of the area is mainly karst pipeline type leakage;
and fourthly, along the structural surface leakage development area, the rock mass leakage mode distributed within the range line of the dam impervious curtain is leakage along the structural surface, and after the reservoir stores water, the region leakage mode is mainly leakage along the structural surface.
4. The method for constructing the waterproof curtain of the karst development area water retaining building according to claim 3, wherein the waterproof treatment scheme comprises:
firstly, performing seepage-proofing treatment in a bedrock fracture type seepage development area by adopting cement slurry to perform curtain grouting so as to form a continuous vertical curtain to stop seepage;
seepage-proofing treatment is carried out in a curtain grouting mode in the corrosion crack type seepage development area by adopting a cement slurry and treating agent method so as to form continuous vertical curtain intercepting seepage;
excavating the karst filling materials with the shallow part cleaned conditionally in the karst pipeline type seepage development area, flushing the karst filling materials in the deep seepage-proofing curtain area by adopting high-pressure wind and water in a combined manner, backfilling the karst filling materials by adopting cement mortar after cleaning, then performing curtain grouting seepage prevention, and performing curtain grouting seepage prevention after backfilling the cement mortar in the non-filled karst cave;
fourthly, adopting a grouting plugging mode to process along the leakage development area of the structural surface, and then performing curtain grouting seepage prevention.
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| CN115387369A (en) * | 2022-09-29 | 2022-11-25 | 成都理工大学 | Flexible impervious structure combining impervious wall and curtain grouting and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104237096A (en) * | 2013-06-07 | 2014-12-24 | 上海勘测设计研究院 | Method for confirming hydraulic seepage-proofing parameters of strong karst region |
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| CN115387369A (en) * | 2022-09-29 | 2022-11-25 | 成都理工大学 | Flexible impervious structure combining impervious wall and curtain grouting and construction method thereof |
| CN115387369B (en) * | 2022-09-29 | 2023-06-09 | 成都理工大学 | Flexible seepage-proofing structure combining seepage-proofing wall and curtain grouting and construction method thereof |
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