DISASTER RESILIENCE OF PUBLIC SCHOOL INFRASTRUCTURE AND COMMUNITY (DR-PSIC) - Details - Typical Retaining Wall and Breast Wall Designs

Q: What reinforcement and wall components are specified for the typical retaining wall design?

The retaining wall details specify RRM retaining wall construction with 2-8Ø longitudinal bars and 4.75Ø C-hook distribution bars @300 mm c/c, along with mortar and PCC proportions, weep holes, and geotextile membrane requirements at the wall surface.

Q: What expansion joint guidance is given for the retaining wall and wall system?

Expansion joints are noted as 10 cm at 10–15 m c/c for the typical retaining wall system.

Q: What key geometric constraints apply to the typical breast wall (stone masonry) design?

Notes include that all dimensions are in mm, expansion joints should be 10 cm at 10–15 m c/c, the breast wall height should satisfy H=5B, B must be greater than 600 mm, and the breast wall height should not be less than 3000 mm.

Oct 24, 2026

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Engineering drawing package for disaster resilience works of public school infrastructure under the DR-PSIC program, prepared by Nepal’s National Reconstruction Authority. Includes typical retaining wall design details with RRM components, longitudinal bars and C-hook distribution reinforcement, mortar and PCC specifications, weep holes, geotextile membrane requirements, and expansion joint guidance. Provides typical breast wall and section details for stone masonry, including slope criteria, H=5B height-breadth constraints, permissible dimensional notes, and related reinforcement/weep arrangements. Also contains chainlink fence sectional elevation and plan sheets and an RCC water tank sectional plan.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages10

Reading Time25 min

AccessFree to download

Typical Retaining Wall Design

Typical Breast Wall Design

Chainlink Fence Plan and Sectional Elevation

Sectional Plan of RCC Water Tank

DISASTER RESILIENCE OF PUBLIC SCHOOL INFRASTRUCTURE AND COMMUNITY (DR-PSIC) DETAILS ARCHITECTURAL DRAWINGS |

H

2-8Ø LONGITUDINAL BARS
4.75Ø C-HOOK DISTRIBUTION BARS @300 MM C/C
G. L.

1:6 C/S MORTAR RRM WALL
75 MM M15 PCC (1:2:4) 20 MM AGGREGATE
100 x 100 MM WEEP HOLES @ 1.5 M STAGGERED

500 MM THICK FILLER MEDIA WITH APPROVED MATERIAL
Hf
SLOPE AT
(H:V)1:10
SLOPE AT
(V:H)1:10
GEOTEXTILE MEMBRANE AT THE WALL SURFACE
Tw

150 BW 150 TYPICAL RETAINING WALL
NOTE: EXPANSION JOINT @10M-15M

STANDARD DESIGN OF RRM RETAINING WALL

S.N
1
2
3
4
5
H (m)
1
2
3
4
5
SBC 80 KN/m2
Bw (m)
0.50 0.90 1.80 2.40
3.95
Tw (m)
0.45 0.60 0.60 0.70
0.75
SBC 100 KN/m2 SBC 150 KN/m2 Remarks Bw (m) Tw (m) Bw (m) Tw (m) Hf 0.50 0.45 0.50 0.45 0.40 0.90 0.60 0.90 0.60 0.50 1.80 0.60 1.80 0.60 0.60 2.40 0.70 2.40 0.70 0.75 3.5 0.75 2.75 0.75 1.00 | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | | CLIENT: | PROJECT TITLE: | SHEET TITLE: | CONSULTANT: | PLANNING AND DESIGN TEAM: | | | SHEET NO. DET-01
DWG CODE: DET | |
Government of Nepal
National Reconstruction Authority
Central Level Project Imlementation Unit-Education | DISASTER RESILIENCE OF PUBLIC SCHOOL INFRASTRUCTURE AND COMMUNITY
(DRPSIC) | TYPICAL RETAINING WALL DESIGN | DESIGN & SUPERVISION CONSULTANT(DSC-1)
ERMC/ SILT/ PACE/ CAGE JV
ERMC A G JV S
I
L T E PACE
C | ENGINEER: | | REVISION: | | | | | | | ARCHITECT: Sudeep S | hakya | CHECKED: | | | | | | | DRAWN : Ar. Srishti Paudel | | APPROVED: | | | | | | | SCALE : | PAPER SIZE : A3 | DATE: MAY 2018 | | |

H

H/5+150
100 ø WEEP HOLES @ 1.5 M STAGGERED (10 SLOPE DOWN)

STONE MASONRY
(OF 1:4 C/S)
PCC (1:2:4)

PCC (1:2:4)
SLOPE AT (H:V)1:4

30°-35°
SLOPE AT (V:H)1:100

2-8Ø LONGITUDINAL BARS with 4.75mm TMT or eqv C-hook @300mm c/c

100
Geo Textile Sheet

TYPICAL SECTION OF BREAST WALL (STONE MASONRY IN 1:4 C/S)
Note:
1) All the dimensions are in mm.
2) Expansion Joints should be 10 cm @ 10-15 m c/c
3) Permisssible Height and Breadth
-Height of the breast wall (H) should be equal to the five times the breadth of the breast wall (B) (i. e. H=5B)
-B should not be less than 600 mm (i.e B > 600 mm)
-Height of the breast wall should not be less than 3000 mm (i.e. H < 3000 mm) | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | CLIENT: | | PROJECT TITLE: | SHEET TITLE: | CONSULTANT: | | PLANNING AND DESIGN TEAM: | | SHEET NO. DET-02
DWG CODE: DET | |
| Government of Nepal
National Reconstruction Authority
Central Level Project Imlementation Unit-Education | DISASTER RESILIENCE OF PUBLIC SCHOOL INFRASTRUCTURE AND COMMUNITY
(DRPSIC) | TYPICAL BREAST WALL DESIGN | DESIGN & SUPERVISION CONSULTANT(DSC-1)
ERMC/ SILT/ PACE/ CAGE JV |
| ENGINEER: | REVISION: | | | | | | | | | ARCHITECT: Sudeep Shakya | CHECKED: | | | | | | | | | DRAWN : Ar. Srishti Paudel | APPROVED: | | | | | | | | | SCALE :
PAPER SIZE : A3 | DATE: MAY 2018 | | | | | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | | | CLIENT | | PROJECT TITLE | SHEET TITLE | CONSULTANT | | | PLANNING DESIGN TEAM | | | SHEET NO. DET-03 | | | Government of Nepal
National Reconstruction Authority
Central

FAQs

What reinforcement and wall components are specified for the typical retaining wall design?

The retaining wall details specify RRM retaining wall construction with 2-8Ø longitudinal bars and 4.75Ø C-hook distribution bars @300 mm c/c, along with mortar and PCC proportions, weep holes, and geotextile membrane requirements at the wall surface.

What expansion joint guidance is given for the retaining wall and wall system?

Expansion joints are noted as 10 cm at 10–15 m c/c for the typical retaining wall system.

What key geometric constraints apply to the typical breast wall (stone masonry) design?

Notes include that all dimensions are in mm, expansion joints should be 10 cm at 10–15 m c/c, the breast wall height should satisfy H=5B, B must be greater than 600 mm, and the breast wall height should not be less than 3000 mm.

Oct 24, 2026

Upload by Himbo