Geology and Soil Assessment for Construction

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Questions and Answers

Which of the following factors contributes most significantly to soil erosion?

  • Flat landforms
  • Low rainfall intensity
  • High vegetation cover
  • Long slopes (correct)

What is the primary purpose of conducting soil analysis for buildings over three stories?

  • To assess bearing capacity and bedrock depth (correct)
  • To determine soil color and texture
  • To identify vegetation types present
  • To evaluate surface water evaporation rates

What type of rock is formed from the cooling of lava?

  • Fossilized
  • Metamorphic
  • Igneous (correct)
  • Sedimentary

Which geological process can affect the suitability of a site for building projects?

<p>Bedrock formation type (C)</p> Signup and view all the answers

What is the recommended maximum slope for roads to ensure safety in building constructions?

<p>7% (C)</p> Signup and view all the answers

Which feature do geologic maps primarily display to support construction planning?

<p>Arrangement of geologic features (D)</p> Signup and view all the answers

What characteristic of soils is particularly important for surface water filtration?

<p>Soil texture (A)</p> Signup and view all the answers

How many test borings are required to adequately assess bedrock for construction purposes?

<p>Three (D)</p> Signup and view all the answers

What does the term 'slope' refer to in site analysis?

<p>The vertical rise to the horizontal run expressed as a ratio (A)</p> Signup and view all the answers

What is a topographic map most commonly used for?

<p>Displaying the slope and contour of the land along with natural features (B)</p> Signup and view all the answers

What does a slope map visually represent?

<p>Areas grouped by a particular range of degree of inclination (D)</p> Signup and view all the answers

What information do contour lines on a map convey?

<p>The elevations of the land in a plan view (A)</p> Signup and view all the answers

Which slope range corresponds to moderately sloping to strongly rolling terrain?

<p>8-18% (D)</p> Signup and view all the answers

What is typically assessed during the site inventory and assessment phase?

<p>The natural environment and physical characteristics of the site (D)</p> Signup and view all the answers

What does a contour interval indicate?

<p>The vertical distance between adjacent contour lines (A)</p> Signup and view all the answers

What is the purpose of slope analysis in site planning?

<p>To identify steep slopes and potential building locations (B)</p> Signup and view all the answers

What is the primary characteristic of a 100-Year Flood Plain?

<p>It considers data from storms occurring every 100 years. (A)</p> Signup and view all the answers

Which of the following factors is NOT considered when analyzing the climate for construction planning?

<p>Soil type (D)</p> Signup and view all the answers

Which of the following best describes endemic species?

<p>Plants and animals unique to a particular geographic region. (A)</p> Signup and view all the answers

What is the purpose of hydrogeologic maps?

<p>To portray aquifers and their characteristics. (A)</p> Signup and view all the answers

Which consideration is least relevant when planning to preserve existing features of a site?

<p>Assessing the recreational potential of the area (A)</p> Signup and view all the answers

What role do recharge areas play in hydrogeology?

<p>They facilitate the storage of surface water into aquifers. (B)</p> Signup and view all the answers

What is a primary concern regarding existing wooded areas during site analysis?

<p>Preserving them is vital for maintaining wildlife. (A)</p> Signup and view all the answers

What is the significance of easements in the context of the Water Code of the Philippines?

<p>They specify buffer zones for urban, agricultural, and forest areas. (D)</p> Signup and view all the answers

What should be considered when assessing the views from a site?

<p>The elevation and angle of vertical view (A)</p> Signup and view all the answers

Which of the following factors influences the effectiveness of sun and wind orientation in building design?

<p>The type and arrangement of plants (A)</p> Signup and view all the answers

What is the primary purpose of evaluating a site's exposure to roadway noise?

<p>To create strategies for noise control (D)</p> Signup and view all the answers

How should a designer treat sites with outstanding natural features?

<p>Integrate them into the overall design (A)</p> Signup and view all the answers

What is a significant aspect of a view corridor in building design?

<p>It must lead to a focal point for observation (D)</p> Signup and view all the answers

What defines an earth berm in the context of site design?

<p>A raised barrier of compacted soil (B)</p> Signup and view all the answers

When considering noise control, what types of barriers can be used?

<p>Solid walls or embankments (B)</p> Signup and view all the answers

What is critical to understanding building location and orientation?

<p>The spatial relationship between the building and its site (D)</p> Signup and view all the answers

What primary consideration should be taken into account during site appreciation and analysis?

<p>Ecological, aesthetic, and socio-psychological aspects (A)</p> Signup and view all the answers

Which of the following best defines site design?

<p>The arrangement of structures on a piece of land for predetermined functions (A)</p> Signup and view all the answers

What is the primary purpose of a land use map?

<p>To provide the spatial distribution of land uses (A)</p> Signup and view all the answers

What is the focus of site selection and analysis?

<p>Formulating site criteria for most suitable project placement (B)</p> Signup and view all the answers

How does zoning contribute to land use management?

<p>By dividing a community into specifically regulated zones (B)</p> Signup and view all the answers

Which document typically contains guidelines for subdivision planning?

<p>Deed of Restriction (C)</p> Signup and view all the answers

Why is it important to analyze existing utilities in relation to land use planning?

<p>To provide a basis for understanding potential development constraints. (C)</p> Signup and view all the answers

What is the role of site development planning (SDP) services?

<p>Integrating built structures with their surrounding environment (D)</p> Signup and view all the answers

What role does demographic analysis play in land use planning?

<p>It examines social structures and their impact on land use. (B)</p> Signup and view all the answers

In urban and regional planning, what does comprehensive land use planning entail?

<p>Creating an organized framework for the development and regulation of land use (C)</p> Signup and view all the answers

Which of the following accurately describes zoning ordinances (ZOs)?

<p>Codes that classify land into areas for specific uses (D)</p> Signup and view all the answers

Which of the following is essential for building within a residential subdivision?

<p>Subdivision deed restrictions (A)</p> Signup and view all the answers

What is a key aspect of site utilization and land-use studies?

<p>Identifying a site's development potential through appropriate land use (A)</p> Signup and view all the answers

How do roads impact land use planning?

<p>They serve as access routes that influence development opportunities. (B)</p> Signup and view all the answers

What is the significance of analyzing the relationship between a site and its adjacent areas?

<p>It aids in identifying community facilities relevant to the site. (D)</p> Signup and view all the answers

Why is it necessary to identify historical and archaeological elements in land use planning?

<p>To comply with regulations that protect these significant sites. (D)</p> Signup and view all the answers

What is a potential disadvantage of an irregular shaped lot when designing buildings?

<p>Complicated grading arrangements (C)</p> Signup and view all the answers

Which type of street pattern involves a direct connection between communities with minimal crossings?

<p>Linear or Street Ribbon (A)</p> Signup and view all the answers

In physical arrangements of building mass, what defines an 'Enclosed Space'?

<p>Isolated space cut-up with traffic lines (B)</p> Signup and view all the answers

What challenge is primarily associated with corner elements in architectural design?

<p>It restricts design uniformity due to shape adaptation (B)</p> Signup and view all the answers

Which of the following is NOT a characteristic of geometric street patterns?

<p>Lack of organized block layout (C)</p> Signup and view all the answers

Which feature is essential in the siting of a building according to the content?

<p>Establishment of terminal points (B)</p> Signup and view all the answers

What is a common advantage of using a gridiron street pattern?

<p>Ease of laying out blocks and services (A)</p> Signup and view all the answers

Which of the following elements helps create a visual identity for a space?

<p>Monuments, statues, or fountains (C)</p> Signup and view all the answers

What is a primary disadvantage of grading by cut?

<p>High disposal costs and loss of topsoil (B)</p> Signup and view all the answers

Which method is appropriately used for grading plans involving large areas?

<p>Contour Area Method (C)</p> Signup and view all the answers

What advantage does grading by fill offer compared to grading by cut?

<p>Raising low spots for better drainage (A)</p> Signup and view all the answers

Combining cut-and-fill methods is considered to be what?

<p>An efficient method preventing foreign soil introduction (B)</p> Signup and view all the answers

What is a common disadvantage when using grading by fill?

<p>Increased risk of settling and erosion (A)</p> Signup and view all the answers

What is a primary characteristic of a cul-de-sac in urban planning?

<p>Creates an enclosed space with fronting houses. (C)</p> Signup and view all the answers

Which urban planning instrument is best suited for rolling terrains?

<p>Combination patterns (C)</p> Signup and view all the answers

What disadvantage is associated with loops in urban street design?

<p>They tend to result in narrow streets. (A)</p> Signup and view all the answers

What is a key advantage of using a modified grid system in urban planning?

<p>Provides easy and direct street layout for services. (B)</p> Signup and view all the answers

Which of the following instruments primarily uses circumferential roads to connect city centers to outskirts?

<p>Radial systems (C)</p> Signup and view all the answers

What is the main advantage of developing on flat slopes?

<p>Economical site development and adaptability to various street patterns (B)</p> Signup and view all the answers

What is a key consideration when developing on steep slopes?

<p>Drainage problems might arise but can be mitigated (C)</p> Signup and view all the answers

Which type of slope allows for the construction of footpaths with a maximum slope of 14%?

<p>Steep slopes (A)</p> Signup and view all the answers

When planning for drainage on moderate slopes, which of the following is most critical?

<p>Surface drainage considerations (B)</p> Signup and view all the answers

What is one of the reasons for conducting slope analysis during site development?

<p>To minimize the disturbance of the natural terrain (C)</p> Signup and view all the answers

Which statement about permitted angles of slope for parking areas is accurate?

<p>Parking areas have a minimum slope of 1% and a maximum of 8% (B)</p> Signup and view all the answers

What challenge is typically associated with building on flat slopes?

<p>Difficulty in drainage management (A)</p> Signup and view all the answers

What needs to be addressed when constructing ramps for vehicles on slopes?

<p>Minimum slope of 5% and maximum slope of 8% (C)</p> Signup and view all the answers

Flashcards

Site Planning

Arranging structures on land and shaping spaces between them, considering architecture, engineering, landscape, and city planning to organize the external environment.

Site Design

Developing or redeveloping land for specific purposes, including building construction and its physical connections to the site.

Site Selection and Analysis

Formulating criteria and evaluating suitable locations for a project based on specific requirements and site characteristics.

Site Utilization and Land-Use Studies

Identifying development potentials through proper land utilization analysis, considering development controls and the site's surrounding environment.

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Master Development Planning (MOP)

A comprehensive planning process that aims to establish guidelines for the future development of an area.

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Site Development Planning (SDP)

Planning for areas immediately surrounding buildings and structures, considering the built environment and the natural surroundings.

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Zoning Ordinances (ZOs)

A set of rules that control how land is used and developed within a specific area.

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Comprehensive Land Use Planning

The process of creating, amending, and enforcing laws and regulations for the use of land.

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Floodplains

Areas along rivers or streams susceptible to flooding during high discharge.

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Wetlands

Areas of water or water-logged soil for extended periods, crucial for natural resources and protected by law.

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Aquifers

Rock, gravel, or sand holding groundwater.

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Recharge Areas

Areas where surface water infiltrates into aquifers.

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Hydrogeologic Maps

Maps displaying information about aquifers and their characteristics.

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Climate Factors

Factors like temperature, sunlight, precipitation, humidity, and wind.

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Endemic Species

Plants and animals unique to a specific location.

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Vegetation Map

A map showcasing the distribution of vegetation in a specific area.

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Topographic Map

A visual representation of the land's surface features, showcasing elevation, slope, and other natural and man-made elements.

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Contour Lines

Lines on a map that connect points of equal elevation, helping to visualize the land's topography.

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Contour Interval

The vertical distance between two adjacent contour lines on a map, indicating the change in elevation.

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Slope Analysis

The process of analyzing the slope of the land to determine areas suitable for building and access.

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Slope

The degree of inclination or gradient of a surface, expressed as a ratio of vertical rise to horizontal run.

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Slope Map

A map that groups areas with similar slope inclination ranges, making it easier to visualize the land's incline.

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Site Profile

A collection of data about the physical, biological, and social characteristics of a site and its surroundings.

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Site Inventory and Assessment

The first step in site planning, involving a thorough assessment of the site's natural and physical environment to understand its opportunities and limitations.

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What is soil?

The thin layer of Earth's surface, composed of rock fragments, water, air, and organic matter.

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Why are soil tests needed for taller buildings?

Soil analysis is necessary for buildings over three stories to determine the soil's ability to support weight and the depth of solid rock.

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What is geomorphology?

The study of landforms, their origin, and the geological processes that shaped them.

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What is bedrock?

Consolidated rock material found beneath the surface soil. It's important for foundations, walls, and roads.

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What are the three main types of rocks?

Igneous rocks form from cooled lava, sedimentary rocks form from hardened sediments, and metamorphic rocks are formed from existing rocks altered by heat or pressure.

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What do geologic maps indicate?

Geologic maps show the arrangement of rock types, faults, minerals, and groundwater, helping identify areas suitable for building.

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What does slope analysis tell us?

Slope analysis identifies suitable areas for buildings, roads, and other features by indicating the steepness of land.

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Why is geology important for planning?

Understanding the geological composition of a site is crucial before constructing buildings or other structures to ensure stability and safety.

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Land Use

The manner of utilizing land, including its allocation, development, and management.

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Zoning

Dividing a community into zones based on land use potential, maximizing and regulating development.

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Urban Land Use Plan

A visual guide to future planning, combining elements like natural resources, economic development, and transportation.

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Utilities Mapping

Analyzing locations, capacities, and access to essential utilities like water, sewers, and electricity.

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Roads and Transport

Primary access routes influencing development possibilities, including streets, roads, alleys, and sidewalks.

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Linkages

Analyzing the site's relationship to adjacent areas and the community, including facilities like schools, hospitals, and parks.

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Historical Elements and Cultural Value

Identifying historical and archaeological elements, often protected by regulations.

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Demographic Information

Examining demographic characteristics of residents and users, including population numbers, composition, and economic status.

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Site Views

A pleasing or objectionable view from a site, often influenced by building placement.

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View Corridor

A carefully designed path for the eye to follow, guiding the viewer towards a specific focal point.

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Sun & Wind Orientation

The placement of a building to maximize sunlight and minimize wind impact.

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Noise Control

Reducing noise levels from nearby roadways using barriers like walls, embankments, or natural terrain.

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Berm

A raised barrier, often made of earth, that separates areas and can provide noise and visual screening.

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Natural Features

Unique natural elements like trees, rivers, or hills, which contribute to the character and aesthetics of a site.

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Building Location

The intentional placement of a building on a site, taking into account its position relative to surrounding features.

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Building Orientation

The relationship between a building's orientation and the surrounding landscape, creating a specific geometric and spatial connection.

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Isolated Building

A building type where the structure is enclosed within a surrounding space, creating an isolated feeling.

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Building Enclosing Space

A building type where the structure encloses a defined space, creating a sense of unity.

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Linear Street

A type of street layout where a straight road connects communities with limited intersections.

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Gridiron Street

A street layout where the site is divided into rectangular blocks, allowing for a regular grid pattern.

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Corner Elements

Building elements at the corner of a site can influence design decisions.

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Visual Identity Elements

Including monuments, statues, or fountains can create a focal point and identity for a space.

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Terminal Points

Using notable features to mark the end of a street or space, creating a sense of arrival.

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Building Shape and Site Form

The shape of a building is often influenced by the site's layout, especially in constrained areas.

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Cut Area

Soil removed to create a desired slope or level.

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Fill Area

Soil added to fill in low areas and create desired slopes.

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Average End Area Method

Method to calculate cut and fill volume for linear projects like roads and trenches.

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Contour Area Method

Method to calculate cut and fill volume for large, less complex areas.

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Site Grading

The process of reshaping land to accommodate buildings and circulation.

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Flat Slope

Land with a slight incline, suitable for various structures and economical to develop. Adaptable to different road layouts. May need careful planning for drainage.

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Moderate Slope

Land with a moderate incline, requiring structures to be elevated or cut into the slope. Surface drainage is crucial.

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Steep Slope

Steep land with a significant incline, allowing for diverse building styles and configurations. Special attention needed for drainage and retaining walls. Provides visual interest.

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Permitted Angles of Slope

The maximum and minimum slopes allowed for different land uses, such as roads, parking areas, ramps, and paths.

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Retaining Wall

A barrier designed to retain soil on a slope, preventing erosion and maintaining stability. Often used on steep slopes.

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Natural Angle of Repose

The natural angle at which a soil slope is stable, without collapsing or sliding. Important consideration for building on steep slopes.

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Radial Street Pattern

A street pattern where roads radiate outward from the city center, often connected by circular roads.

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Meandering Street Pattern

A street pattern that follows the contours of the terrain, typically used in mountainous areas.

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Loop Street Pattern

A street pattern designed to create a closed loop, often used for residential areas. Offers opportunities for varied house groupings but can lead to narrow streets.

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Modified Grid Street Pattern

A street pattern that modifies a traditional grid system to avoid monotony. Often features curved or diagonal streets to break up the uniformity.

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Cul-de-Sac Street Pattern

A street pattern designed for dead-end streets, typically used for residential areas. Offers privacy and a sense of community but can limit access

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