1. Primary Information
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1. PRIMARY INFORMATION Name of the village - Karimannoor panchayat Project title - Construction of life housing complex Name of the shelter - Life housing complexes Name of the location - Karimannoor, Thodupuzha, Idukki Proposed construction/refurbishment - Construction Proposed date for completion - 18 months from the date of construction Implementing agency - Life mission Kerala Management of proposed shelter - Life mission Kerala Name of MLA - P J Joseph Contact number of chairman - 0491 2534634 1.1. OBJECTIVE Setting up of a well-constructed, well managed and safe housing complex at Thodupuzha, Idukki, Kerala under LIFE MISSION by Government of Kerala to provide decent homes for all the homeless in Idukki district who could not afford to have a house without societal backing. The main objective of the Government is: To construct multi storied apartment complexes for the total rehabilitation of landless homeless in the region To provide rehabilitation and recreation spaces to the homeless 1.2. PROPOSED INVESTMENTS Construction of a 4-storied apartment complex with total floor area of 26829.91 sqft 1. Compound wall and gate 2. Sewage treatment plant 3. Landscaping 4. Rainwater harvesting 7 32 33 34 35 36 37 38 39 40 41 42 43 44 45 REPORT ON SOIL INVESTIGATION FOR THE PROPOSED HOUSING PROJECT FOR LIFE MISSION, IDUKKI CLIENT PRIMARY CONSULTANT: REPORT PREPARED BY: M/s TDAC GEOTECHNICAL SOLUTIONS 41/1180, SREESHYLAM, PULLEPADDY, COCHIN-682018 PHONE: 0484 2365236 JOB NO: TDAC/2019/MARCH/W003 REPORT ON SOIL INVESTIGATION FOR THE PROPOSED HOUSING PROJECT FOR LIFE MISSION, IDUKKI Primary Consultant : M/S Habitat Technology group Geotechnical Consultant : Er. Jayakrishnan Menon Laboratory Test report : M/S Novel Geo Services Site boring done by : M/S APLAB Systems Client: Contents 1. INTRODUCTION ................................................................................................................................................... 2 2. SCOPE OF WORK ................................................................................................................................................. 3 3. FIELD EXPLORATION AND METHODOLOGY .......................................................................................... 3 4. GENERAL GEOLOGICAL INFORMATIONS ................................................................................................. 4 5. ANALYSIS OF VARIOUS LABORATORY TESTS ...................................................................................... 7 6. FINDINGS .................................................................................................................................................................. 8 7. SUMMARY & RECOMMENDATIONS: .......................................................................................................... 9 8. REFERENCES ........................................................................................................................................................ 11 1 Client: 1. INTRODUCTION a. LIFE MISSION is one among the four flagship missions of the government of Kerala under Navakeralam Karma Padhathi. One of the major targets of the life mission is to provide decent homes for all the homeless who could not afford to have a house without societal backing . This includes construction of multi storied apartment complexes for the total rehabilitation of landless homeless The target of the mission is to provide safe housing to nearly 4.30 lakhs of homeless in the State within a period of 5 years. Among the homeless, about 1.60 landless families have been historically excluded from various housing schemes of the past. The programme is named as LIFE (Livelihood Inclusion and Financial Empowerment) Mission and the homeless will be provided with modern housing complexes with provision for pursuing their livelihoods, converging social services including Primary Health Care, Geriatric Supports, Skill Development and provision for financial services inclusion. This report deals with the soil investigation and foundation recommendation for the proposed project at Krimanoor, Idukki, Which falls under Region 2 in Kerala. b. As a part of the project 1 no of four storied buildings with a single floor of 629.11m2 area of adding to 2492.50m2 is planned in the area . c. The field works for the geotechnical investigation was carried out by M/S APLAB SYSTEMS in this month of March 2019. The laboratory tesing of soil was done at Novel Geoservices lab, Mulanthuruthy and this report was prepared and foundation recommendation was done by Er.Jayakrishnan Menon. d. The total scope of work for this investigation included performing site reconnaissance, drilling and sampling soil/ rock from nine locations and give foundation recommendation for the each bloak . The primary purpose of these activities was to collect subsurface information at the site for subsequent preparation of geotechnical recommendations for the design of foundations for the proposed project. 2 Client: 2. SCOPE OF WORK Scope of work for the geotechnical investigations consists of: a) Drilling bore holes at 4 location with in the proposed building area. b) Conducting standard penetration tests (SPT) in bore holes at regular intervals and collection of disturbed samples where soil is encountered. c) Conducting laboratory tests on disturbed samples for physical and engineering properties of soil. d) Submitting a geotechnical report providing foundation design and recommendation for the proposed building. 3. FIELD EXPLORATION AND METHODOLOGY Boring was done in accordance with the provisions of IS 1892-1979, using rotary calyx rig technique which is mechanically operated. Boreholes were penetrated through the sandy and lateritic clayey layers and the borehole was advanced up to the hard rock strata. While drilling through the top soil layers sodium bentonite slurry was circulated in order to prevent the sides from caving. Standard penetration tests (SPT), were taken at various depth using standard split spoon sampler, the sets being driven by 63.5Kg hammer as per IS 2131- 1981 giving a free fall of 750mm. The number of blows required to penetrate the first 15cm is for seating’ and is not considered for assessing strength characteristics. The summation of the number of second and third sets of 15cm each are termed as SPT value and designated as ‘N’. Results were recorded and graphically represented in the log of bore hole. Soil samples were collected in plastic bags for visual inspection and classification of strata from all the layers as recorded in log sheets of bore hole. Rock coring was done using electrically operated customized coring device with diamond bit at the end. The core recovered is marked and kept before transporting to laboratory. 3 Client: 4. GENERAL GEOLOGICAL INFORMATIONS 4.1 INTRODUCTION The geographical area of the district is 4476 sq km. It lies between North latitudes 09 16’ 30” and 10 21’00” and East longitudes 76 38’ 00” and 77 24’30”. Idukki district is located in the south central part of Kerala and forms part of the eastern border of the State with Tamil Nadu. It is bounded by Ernakulam district in the northwest and west, Kottayam district in the west and Pathanamthitta district in the south as. The northern and eastern parts of the district are bordered by the State of Tamil Nadu. The name ‘Idukki’ is derived from the Malayalam word “Idukku” indicating narrow gorge. The district is famous for the largest hydro-electric project in the State which is constructed across the river Periyar. About 50% of the district is covered by the forests. Anamudi, the highest peak in India south of Himalayas, is in the Kuttampuzha Panchayat of Adimali Block, in the Kannan Devan Hills Village of Devikulam taluk.Thirteen other peaks in the district exceed a height of 2,000 m (6,600 ft). 4.2 GEOLOGY Geologically the district can be divided into three major belts in a north-south direction – (i) Peninsular Gneissic Complex in the north and (ii) Charnockite Group of rocks in the south and (iii) Migmatitic Complex in between. The oldest rock of the area belongs to Peninsular Gneissic Complex represented by granite gneiss. The rocks are well foliated and show regional folding as well. Khondalite group is 4 Client: represented by calc- granulite and quartzite. These rocks are seen as linear bands, lenticular bodies or enclaves, mostly within the gneissic terrain. The Charnockitic Group comprises of pyroxene granulite, magnetite quartzite and charnockite among which the charnockite is dominant and widespread. Pyroxene granulite and magnetite quartzite occur as linear bands of a few metres width and a few tens of metres in length within the gneissic terrain. They are aligned generally parallel to the trend of foliation. Charnockite occurs as continuous rock unit covering the hilly region in the south and northwest. It is mostly massive but gneissic varieties are also seen, with intermediate to acidic in composition. Central, northeast and southeast parts of the district are dominated by rocks of migmatitic complex comprising of biotite gneiss and hornblende-biotite gneiss (composite gneiss). While the south central part around Pynavu and Thodupuzha is occupied by biotite gneiss, the north eastern and south eastern parts are covered by hornblende biotite gneiss. The biotite gneiss has plenty of restites of older Khondalite and Charnockite Groups of rocks occurring as lensoidal and linear bodies, conformable with the trend of foliation. Granite emplacement is seen around Munnar, Devikolam