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重庆市长寿区水利局关于长寿区桃花溪流域凤城新市段水土保持治理工程(河道生态治理工程部分)洪水影响评价报告的批复

重庆市长寿区新市街道办事处:

你单位关于长寿区桃花溪流域凤城新市段水土保持治理工程(河道生态治理工程部分)洪水影响评价报告审批申请已收悉,我局组织专家对《长寿区桃花溪流域凤城新市段水土保持治理工程(河道生态治理工程部分)洪水影响评价报告》(送审稿)进行了审查。根据河道管理有关法律法规和专家评审意见,现批复如下:

一、同意长寿区桃花溪流域凤城新市段水土保持治理工程(河道生态治理工程部分)洪水影响评价报告的结论

(一)工程所在河段防洪评价标准为10年一遇。

(二)本工程涉及河流为桃花溪河左岸一级支流纳溪河河口段,本工程河道生态治理3.700km,河道疏浚3.700km,主要涉河建设内容包括新建防洪护岸全长6.997km(左岸3.381m,右岸3.616m),新建9处下河梯步,新建穿堤管涵4处,新建过河汀步7处,改造拦河堰2处。

1.护岸工程

河道堤体及护岸结构分别为格宾镇脚+休闲步道+和景观绿化带。

格宾镇脚顶为河道常年水位。格宾笼挡墙镇脚规格为长××高:1×1×1m1.5×1×1m,内部按照1m间隔布置隔板。休闲步道位于格宾镇脚顶部,宽度为2.5m,休闲步道顶高程按比河道常年水位高出0.35m进行设计。

2.下河梯步

本工程共设9处下河梯步,其中,左岸有3处,分别位于桩号KZ2+954.22KZ0+677.21KZ1+263.19,右岸有6道,分别位于KY3+030.73KY2+770.28KY2+248.25KY2+084.31KY0+634.79KY0+965.14。下河梯步采用斜坡坡面梯步:梯步总宽5.0m,均采用C25钢筋砼浇筑,C25钢筋砼梯步厚度为0.15m,下设0.1m厚碎石垫层,两侧设C20砼步带,尺寸为0.4m×0.8m(宽×高)。

3.穿堤管涵

本工程共设4个穿堤管涵,分别位于桩号KZ0+376.69KY2+051.14KY3+025.18KZ3+135.42,采用DN1000钢筋砼预制管,管道基础采用C20砼管形基础,基础厚0.2m,管涵底坡i=0.05。管涵进口设置集水井,出口伸出格宾镇脚至河道。

4.过河汀步

新建汀步7处,汀步置于C20砼基础上,顶部宽2.0m,上游侧直立,下游侧坡比1:1.0,基础置于基岩上,上下游开挖面均采用大块石回填。汀步顶部高程为河道常年蓄水位+0.1m,汀步为M7.5浆砌块石,单个汀步宽度0.5m,长1.5m,高0.8m,汀步间间隔0.4m

5.拦河堰

本工程拆除重建2座拦河堰,分别位于桩号K0+092K2+509,拦河堰采用C20砼浇筑,拦河堰顶部宽2.0m,上游侧直立,下游侧坡比1:1.0,基础置于基岩上,上下游开挖面均采用大块石回填。拦河堰顶部设置汀步,汀步为M7.5浆砌块石,单个汀步宽度0.5m,长1.5m,高0.8m,汀步间间隔0.4m

涉河建筑物控制坐标

第三部分涉河建筑物控制坐标表

涉河建筑物类别

建筑物控制坐标编号

X

Y

备注

穿堤管涵

KZ0+376.69

3312664.108

36411711.363

控制线交点坐标

KY2+051.14

3312386.333

36410648.690

KY3+025.18

3311829.486

36409992.815

KZ3+135.42

3311762.744

36409947.099

下河梯步

KY3+030.73

3311825.504

36409988.885

KZ2+954.22

3311895.987

36410069.571

KY2+770.28

3312003.140

36410167.707

KY2+248.25

3312239.503

36410532.063

KY2+084.31

3312362.277

36410627.991

KY0+634.79

3312845.630

36411517.855

KZ0+677.21

3312837.783

36411483.186

KY0+965.14

3312857.544

36411208.289

KZ1+263.19

3312596.711

36411110.126

过河汀步

K0+354

3312669.410

36411726.388

K0+708

3312853.534

36411450.391

KY0+871.89

3312867.764

36411287.667

K0+956

3312856.860

36411214.553

K2+256

3312233.309

36410533.354

KZ2+655.29

3312019.337

36410299.397

K2+792

3311995.532

36410167.595

改建拦河堰

K0+092

3312667.066

36411952.466

K2+509

3312126.003

36410380.613

左岸护岸

1

3312709.040

36412028.130

堤脚控制线坐标

2

3312708.690

36412027.500

3

3312701.140

36412019.940

4

3312697.440

36412017.840

5

3312693.600

36412013.950

6

3312687.400

36412002.640

7

3312686.170

36411997.780

8

3312686.280

36411977.110

9

3312682.110

36411968.930

10

3312664.930

36411956.620

11

3312663.440

36411955.280

12

3312631.140

36411924.900

13

3312634.480

36411896.200

14

3312662.020

36411880.320

15

3312669.300

36411864.780

16

3312665.600

36411843.310

17

3312667.810

36411817.950

18

3312673.500

36411802.050

19

3312674.940

36411787.540

20

3312664.420

36411716.400

21

3312672.450

36411691.240

22

3312728.680

36411632.630

23

3312751.560

36411614.840

24

3312786.070

36411595.300

25

3312825.190

36411540.870

26

3312831.050

36411510.600

27

3312831.030

36411509.400

28

3312837.780

36411483.190

29

3312838.260

36411470.420

30

3312837.930

36411468.570

31

3312841.820

36411452.780

左岸护岸

32

3312845.570

36411447.960

33

3312850.120

36411393.630

34

3312843.510

36411380.620

35

3312838.110

36411358.570

36

3312837.950

36411344.500

37

3312837.340

36411338.800

38

3312833.140

36411318.360

39

3312834.920

36411300.580

40

3312858.340

36411245.510

41

3312841.940

36411211.610

42

3312810.470

36411201.310

43

3312788.820

36411202.460

44

3312769.060

36411211.350

45

3312732.750

36411213.190

46

3312726.960

36411211.260

47

3312713.380

36411201.990

48

3312690.420

36411174.410

49

3312669.480

36411161.230

50

3312657.580

36411158.220

51

3312644.050

36411146.600

52

3312642.140

36411142.060

53

3312631.020

36411131.210

54

3312604.100

36411120.640

55

3312598.330

36411114.680

56

3312596.710

36411110.130

57

3312595.970

36411106.390

58

3312590.970

36411097.360

59

3312589.720

36411092.320

60

3312591.610

36410999.170

61

3312546.350

36410928.790

62

3312526.610

36410920.270

63

3312509.550

36410900.580

64

3312501.660

36410871.460

65

3312491.860

36410849.610

66

3312465.190

36410815.470

左岸护岸

67

3312455.550

36410807.410

68

3312391.330

36410773.530

69

3312378.070

36410767.410

70

3312357.520

36410772.410

71

3312354.940

36410775.740

72

3312357.070

36410783.470

73

3312361.200

36410785.070

74

3312366.360

36410789.610

75

3312371.130

36410798.370

76

3312366.870

36410815.310

77

3312360.560

36410818.560

78

3312345.210

36410819.800

79

3312334.200

36410816.210

80

3312332.900

36410815.410

81

3312306.410

36410799.750

82

3312285.570

36410775.600

83

3312268.540

36410733.870

84

3312273.570

36410721.030

85

3312359.830

36410680.750

86

3312377.000

36410656.370

87

3312377.200

36410654.220

88

3312366.840

36410638.540

89

3312342.530

36410630.750

90

3312331.090

36410626.300

91

3312302.800

36410613.220

92

3312266.790

36410583.090

93

3312238.570

36410542.720

94

3312222.940

36410531.280

95

3312188.250

36410520.430

96

3312156.260

36410508.390

97

3312107.360

36410486.720

98

3312090.990

36410475.050

99

3312084.420

36410467.980

100

3312083.970

36410448.050

101

3312100.530

36410428.570

左岸护岸

102

3312104.190

36410423.510

103

3312110.210

36410413.650

104

3312116.750

36410401.000

105

3312119.960

36410393.510

106

3312117.810

36410382.460

107

3312076.400

36410341.490

108

3312058.940

36410326.110

109

3312037.430

36410309.290

110

3312027.930

36410303.440

111

3312000.470

36410290.520

112

3311983.250

36410263.250

113

3311983.370

36410235.980

114

3311984.770

36410213.160

115

3311990.190

36410167.700

116

3311980.600

36410144.910

117

3311955.260

36410125.450

118

3311937.430

36410110.000

119

3311882.590

36410056.500

120

3311867.430

36410043.140

121

3311837.740

36410019.520

122

3311823.100

36410006.660

123

3311768.570

36409953.850

124

3311753.360

36409917.910

125

3311753.390

36409852.560

126

3311746.520

36409830.130

127

3311744.810

36409827.600

128

3311717.750

36409832.740

129

3311710.320

36409866.060

130

3311699.600

36409893.800

131

3311694.730

36409902.350

132

3311654.720

36409894.410

133

3311642.440

36409797.270

134

3311678.920

36409713.110

135

3311770.870

36409646.470

右岸护岸

1

3312716.630

36412019.280

2

3312715.870

36412017.360

3

3312714.890

36412010.610

4

3312716.500

36411991.560

5

3312707.670

36411973.250

6

3312671.580

36411949.150

7

3312670.090

36411947.820

8

3312644.220

36411924.160

9

3312647.320

36411895.310

10

3312666.100

36411884.400

11

3312675.720

36411863.440

12

3312672.410

36411845.690

13

3312673.790

36411821.750

14

3312680.230

36411800.930

15

3312681.300

36411788.060

16

3312672.410

36411722.010

17

3312680.560

36411697.160

18

3312715.260

36411661.240

19

3312728.310

36411646.330

20

3312736.220

36411636.310

21

3312754.100

36411622.110

22

3312802.270

36411599.360

23

3312828.380

36411569.880

24

3312850.160

36411504.190

25

3312851.120

36411496.440

26

3312850.180

36411483.420

27

3312851.350

36411472.670

28

3312854.660

36411461.560

29

3312857.950

36411456.650

30

3312860.420

36411454.640

31

3312871.480

36411429.530

32

3312870.570

36411414.420

33

3312862.720

36411390.390

右岸护岸

34

3312857.140

36411381.720

35

3312852.620

36411369.270

36

3312847.280

36411327.140

37

3312849.180

36411312.240

38

3312872.980

36411252.650

39

3312867.380

36411221.420

40

3312865.990

36411219.890

41

3312817.610

36411190.300

42

3312805.690

36411187.110

43

3312788.150

36411187.730

44

3312781.020

36411190.190

45

3312768.370

36411192.790

46

3312746.110

36411194.420

47

3312721.670

36411184.630

48

3312702.880

36411163.850

49

3312685.450

36411151.410

50

3312663.360

36411141.970

51

3312654.080

36411133.880

52

3312649.870

36411126.870

53

3312634.470

36411115.490

54

3312610.640

36411109.570

55

3312608.620

36411107.870

56

3312606.140

36411102.280

57

3312603.830

36411094.150

58

3312600.150

36411067.120

59

3312599.230

36411053.190

60

3312599.450

36411004.460

61

3312545.890

36410918.570

62

3312528.810

36410910.280

63

3312521.330

36410902.120

64

3312500.790

36410848.080

65

3312493.580

36410836.160

66

3312473.890

36410811.990

右岸护岸

67

3312454.400

36410796.320

68

3312388.020

36410762.820

69

3312387.430

36410762.460

70

3312387.260

36410762.350

71

3312355.470

36410762.350

72

3312350.740

36410765.620

73

3312350.500

36410790.060

74

3312355.820

36410793.900

75

3312347.860

36410809.790

76

3312344.370

36410808.690

77

3312311.200

36410789.780

78

3312299.760

36410779.500

79

3312291.400

36410766.840

80

3312281.420

36410737.500

81

3312286.600

36410725.250

82

3312370.750

36410685.320

83

3312367.690

36410629.860

84

3312337.350

36410619.370

85

3312325.630

36410614.460

86

3312302.810

36410603.160

87

3312286.100

36410589.750

88

3312239.530

36410532.030

89

3312225.370

36410522.310

90

3312197.280

36410513.260

91

3312168.910

36410501.670

92

3312115.060

36410474.660

93

3312106.990

36410446.300

94

3312135.870

36410399.370

95

3312129.160

36410371.770

96

3312108.350

36410359.220

97

3312095.510

36410348.100

98

3312083.400

36410333.330

99

3312076.740

36410326.620

右岸护岸

100

3312054.380

36410307.980

101

3312046.240

36410302.450

102

3312016.060

36410286.050

103

3311992.990

36410240.210

104

3312002.810

36410170.820

105

3311986.180

36410129.230

106

3311937.340

36410090.570

107

3311929.920

36410084.070

108

3311875.810

36410031.770

109

3311868.730

36410025.550

110

3311840.910

36410003.320

111

3311833.080

36409996.360

112

3311813.400

36409976.940

113

3311809.310

36409972.650

114

3311787.890

36409948.850

115

3311782.190

36409941.910

116

3311773.270

36409930.000

117

3311771.290

36409924.590

118

3311770.640

36409913.530

119

3311771.020

36409910.150

120

3311771.740

36409907.640

121

3311772.120

36409904.280

122

3311771.230

36409888.890

123

3311770.150

36409884.910

124

3311767.050

36409878.850

125

3311763.760

36409865.130

126

3311763.840

36409826.250

127

3311726.940

36409804.210

128

3311715.190

36409810.570

129

3311704.970

36409824.940

130

3311699.740

36409857.040

131

3311697.540

36409865.640

132

3311690.920

36409884.400

右岸护岸

133

3311670.000

36409882.060

134

3311662.200

36409815.210

135

3311663.790

36409769.990

136

3311666.050

36409757.990

137

3311678.450

36409738.890

138

3311686.130

36409733.570

139

3311692.480

36409731.810

140

3311697.290

36409732.130

141

3311703.360

36409730.550

142

3311714.720

36409723.230

143

3311717.510

36409720.530

144

3311718.250

36409719.470

145

3311721.040

36409716.770

146

3311748.370

36409699.150

147

3311752.720

36409692.840

148

3311753.250

36409690.380

149

3311757.340

36409684.250

150

3311784.250

36409665.620

说明:坐标系统采用2000大地坐标系,高程系统1985国家高程系。

二、有关要求

(一)你单位应严格按照批复的内容和要求实施,自觉接受我局的监督管理。

(二)你单位应充分重视河道保护工作,严禁向河道内倾倒弃土弃渣,并及时清除河道管理范围内的施工临时设施,保障河道行洪通畅。

(三)工程开工前,项目业主应将施工安排报送我局备案。我局将对涉河建设项目在施工过程中和竣工后的界线坐标、规模尺寸、高程、边坡等实施情况进行全面复核。

(四)加强施工期的管理,督促施工单位编制工程度汛方案及措施,并报项目业主及主管部门备案。

(五)工程施工完毕,业主及时向区水利局提交竣工验收鉴定书,竣工验收时,应邀请我局参加。

(六)本批复有效期为三年,自签发之日起计算。期满后,若该工程未开工建设,本批复自行失效;若需延续有效期,应在有效期届满三十日前提出延续申请。工程建设过程中涉河建设方案有较大变更的,也应按规定重新办理审批手续。

重庆市长寿区水利局

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重庆市长寿区水利局关于长寿区桃花溪流域凤城新市段水土保持治理工程(河道生态治理工程部分)洪水影响评价报告的批复.doc

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